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The Effects of Hydroxyurea Therapy on the Six-Minute Walk Distance in | JBM – Dove Medical Press

Posted: December 26, 2019 at 11:43 pm

Taysir Garadah,1,2 Fatema Mandeel,2 Ahmed Jaradat,1 Khalid Bin Thani1,2

1Medical Department, College of Medicine and Medical Sciences, Arabian Gulf University, Manama, Kingdom of Bahrain; 2Medical Department, Cardiac Unit, Salmanyia Medical Complex, Manama, Kingdom of Bahrain

Correspondence: Taysir GaradahMedical Department, College of Medicine and Medical Sciences, Arabian Gulf University, P.O. Box 26671, Manama, Kingdom of BahrainTel +973-17239681Fax +973-17230730Email garadaht@hotmail.com

Background: The impact of hydroxyurea (HU) medication as treatment of choice has not been evaluated in adult sickle cell anemia (SCA) patients in terms of the 6-min walk distance (6 MWD).Aim: The aim of the study was evaluating the effects of HU on the 6 MWD, serum brain natriuretic peptide (NT-pro BNP) level, and pulmonary hypertension (PH) measured by tricuspid regurgitation velocity (TRV).Methods: In this cross-sectional, prospective study, 110 patients with homozygous SCA were studied and compared with age- and gender-matched healthy controls. Every patient was investigated via pulsed and tissue Doppler echo evaluation, 6-min walk test (6 MWT), and blood level for the level of NT-pro-BNP hormone. Data were compared in patients with (n = 59; group 1, G1) and without (n = 51; group 2, G2) HU medication. Pearson correlation analysis was applied and clinical follow-up for the frequency of acute chest syndrome (ACS). Analysis of variance (ANOVA) multivariate statistical analysis was applied between groups.Results: In the study, 110 patients with SCA were studied and compared with 110 control patients. Patients in G1 compared with G2 had a longer 6 MWD (491 64.4 m vs 428.6 54.3 m, p < 0.005), higher HbF% (21 2.5% vs 8 1.8%, p < 0.005), and lower NT-pro-BNP level (314.1 27.5 pmol/L vs 407 18.9 pmol/L, p = 0.05). The mean TRV values were 2.8 0.5 m/s in G1 versus 3.4 0.4 m/s in G2, p < 0.005, and 1.5 0.7 m/s in the control group. The high probability of PH based on a TRV > 3.4 m/s was 10.1% in G1 versus 17.6% in G2 and 3.6% in the control. There were weak positive correlations between NT-pro-BNP and TRV (r = 0.264; p = 0.005) and HbF% and 6 MWD (r = 0.452; p = 0.001). After 12 months of follow-up, frequency of acute chest syndrome (ACS) was twice as high in G2, at 32 patients, versus 16 in G1.Conclusion: Patients with SCA on HU medication compared with no HU had significantly longer 6 MWD, lower level of NT-pro-BNP, higher HbF% level. After 1-year follow-up HU patients had less frequency of ACS. There were significant positive correlations between the level of NT-pro BNP level and TRV in m/s on echo.

Keywords: sickle cell anemia, 6-min walk test, hydroxyurea, NT-pro BNP, echocardiography, diastolic dysfunction, pulmonary hypertension

This work is published and licensed by Dove Medical Press Limited. The full terms of this license are available at https://www.dovepress.com/terms.php and incorporate the Creative Commons Attribution - Non Commercial (unported, v3.0) License.By accessing the work you hereby accept the Terms. Non-commercial uses of the work are permitted without any further permission from Dove Medical Press Limited, provided the work is properly attributed. For permission for commercial use of this work, please see paragraphs 4.2 and 5 of our Terms.

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Injuries from cell phones increasing nationwide – Boston Herald

Posted: December 26, 2019 at 11:43 pm

Head and neck injuries from cell phones have increased steadily over the last two decades according to a new study, peaking sharply when the iPhone debuted in 2007, and Boston doctors say its a common occurrence in their emergency departments.

We often see injuries in the ED related to cell phone use. When your phone grabs your attention, you are less aware of other things in your environment, and more likely to miss a step or not notice something in your path as you are walking, said Dr. Carrie Tibbles, Beth Israel Deaconess Medical Center emergency medicine attending physician.

And as we know, distraction while you are driving can lead to very serious consequences, said Tibbles.

A recent study published in the Journal of the American Medical Association shows 76,043 patients in the U.S. went to the emergency room with head and neck injuries related to cell phone use between January 1998 and December 2017. The information was collected from a national database.

Dr. Regan Bergmark, associate surgeon at Brigham and Womens Hospital said, Anecdotally, yes, this is a problem and you can see it driving around Boston anywhere you go so its not surprising that there would be injuries from cell phones.

The most common injuries were minor, such as cuts, bruises or scrapes, but 18% of patients had internal organ injuries.

The injuries resulted from a range of activities as common as texting and walking to cell phone battery explosion or using a phone while driving.

According to data from the Massachusetts Department of Transportation, there have been more than 46,000 distracted driving crashes in the state between 2014 and 2018. Of those crashes, 38% were caused by the use of an electronic device.

AAA spokeswoman Mary Maguire said, Smart phones are a potent distraction behind the wheel, and we see evidence of that every day on our roads: drivers who are looking at their phones, and not the road.

Most injuries logged in the study happened in people aged 13-29 years old, with a sharp increase in injuries happening in 2007, This period also coincides with the release of the first major successful smartphone in the US market, the iPhone, researchers wrote.

A new distracted driving bill, signed into law by Gov. Charlie Baker last month bans drivers from using handheld devices while driving. Warnings will be issued during the current grace until March 31, 2020, and violators thereafter will be subject to fines.

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The First Cell: Dr. Azra Raza on Why the Slash-Poison-Burn Approach to Cancer Has Failed – Democracy Now!

Posted: December 26, 2019 at 11:43 pm

This is a rush transcript. Copy may not be in its final form.

NERMEEN SHAIKH: Why has there been so little progress in the war on cancer? According to the director of the National Institutes of Health, Dr. Francis Collins, quote, Americans are living longer, healthier lives. Life expectancy for a baby born in the U.S. has risen from 47 years in 1900 to more than 78 years today. Among the advances that have helped to make this possible are a 70% decline in the U.S. death rate from cardiovascular disease over the past 50 years, and a drop of more than 1% annually in the cancer death rate over the past couple of decades. A drop of just over 1%? For the trillions of dollars that have been poured into cancer research, just over 1%? Today, we spend the hour with a renowned oncologist who says we should be treating the disease differently.

AMY GOODMAN: In her new book, The First Cell: And the Human Costs of Pursuing Cancer to the Last, our guest for the hour, Dr. Azra Raza, notes we spend $150 billion each year treating cancer, yet a patient with cancer is as likely to die of it today with a few exceptions as one was 50 years ago. She argues experiments and the funding for eradicating cancer look at the disease when its in its later stages, when the cancer has grown and spread. Instead, she says, the focus should be on the very first stages, the first cell, as her book is titled. She says this type of treatment would be more effective, cheaper and less toxic.

NERMEEN SHAIKH: Dr. Raza criticizes what she calls the, quote, protocol of surgery, chemotherapy and radiation the slash-poison-burn approach to treating cancer, which she says has remained largely unchanged for decades. She calls for a transformation in the orientation of cancer research, writing, quote, Little has happened in the past fifty years, and little will happen in another fifty if we insist on the same old, same old.The only way to deal with the cancer problem is to shift our focus away from exclusively developing treatments for end-stage disease and concentrate on diagnosing cancer at its inception and developing the science to prevent its further expansion. From chasing after the last cell to identifying the footprints of the first, Dr. Raza writes.

AMY GOODMAN: Well, for more, Dr. Azra Raza joins us to speak in her own words. Oncologist and professor of medicine at Columbia University, shes also the director of the MDS Center. MDS is myelodysplastic syndromes, a form of bone marrow cancer. In her book, she notes, again, that we spend $150 billion each year treating cancer, yet a patient with cancer is as likely to die of it today than one 50 years ago it is an astounding fact with a few exceptions.

Dr. Azra Raza, welcome back to Democracy Now! Its great to have you with us. How can this be? How can it be, the lack of progress that has been made in this last half-century?

DR. AZRA RAZA: Thank you for having me again, Amy. Im delighted to be here.

Since 1903, it has been well appreciated, actually, that its not cancer that kills; its the delay in treatment that kills. So, forever we have been making attempts to try and diagnose this disease early. In the last three decades, we have seen a 26% decline in cancer mortality, which is about 1% a year, as you pointed out. But thats not happened because we have developed some grand, new treatment strategy. It has happened because of two main things. One is the anti-smoking campaign, so the incidence started going down. And second is because we started using screening measures to diagnose cancers earlier and earlier.

This approach of preventive medicine, where you catch the disease early and intercept early, is what caused the drop in cardiovascular disease by 70%, because, there, the cardiologists were smarter than oncologists. They realized that if they allow a myocardial infarction, or a heart attack, to damage the heart muscle, then the only treatment would be a heart transplant, which is so draconian and so terrible. They started to diagnose not only earlier and earlier, but try and prevent the appearance by using anti-cholesterol drugs, for example. Thats a very clear case of early detection, but then even prevention of the disease. And 70% decline in mortality. Why arent we doing the same in cancer?

NERMEEN SHAIKH: So what is the answer to that?

DR. AZRA RAZA: Well, the answer is that we have been trying to do it. And the screening measures that were put in place, like mammography, colonoscopy, PSA testing, Pap smears, theyre the ones that caused the decline by 26% mainly, in addition to anti-smoking campaigns. But those measures were put in 50 years ago. Imagine, in this day and age of technology, we are still putting a tube into someones gut and looking to find cancer. That is primitive. Thats paleolithic for today.

AMY GOODMAN: And the alternative is?

DR. AZRA RAZA: The alternative is that we have milked these technologies as much as we could . They have yielded the 26% decline in mortality. Theyre not going anywhere else. We need to invest in developing technology based on current imaging, scanning devices, detection of biomarkers, for example, from blood, sweat, tears, saliva, urine, stool samples, and find the earliest footprint of cancer and see how we can intervene. And this is a strategy that is not limited to just cancer, Amy. This is a strategy that is going to apply to every single chronic disease in the coming years.

AMY GOODMAN: So, what has prevented that from happening?

DR. AZRA RAZA: I wish there was a very neat kind of answer about this, but its something like this. You take a frog and put it in cold water and start heating it slowly; nothing is going to happen. On the other hand, you throw a frog into boiling water, it will jump out. But if you heat it slowly, the frog dies without jumping out, because it slowly gets used to it. This is an apocryphal story, by the way; scientifically, its incorrect. Just a warning. As a purist, I have to add that. But the analogy is true, that things have happened so slowly that we keep getting desensitized to the next step. One thing is that there is so much hyperbole around cancer treatment. If a few months of survival are added by a drug, it is welcomed as a game changer. Let me

AMY GOODMAN: At the end of life.

DR. AZRA RAZA: Yes, exactly. Let me give you just a few statistics. I want to be very clear that using the slash-poison-burn approach, we are curing 68% of cancers that are diagnosed today. We are curing them. Thirty-two percent that present with advanced disease, their outcome is the same exact outcome that it was 50 years ago. The 68% we are curing, why are we still using these Stone Age treatments? You know how terrible it is to get chemotherapy and radiation therapy.

AMY GOODMAN: Explain how it works.

NERMEEN SHAIKH: Explain what yeah, yeah. What happens?

DR. AZRA RAZA: The first rule of medicine is first, do no harm. In fact, when a patient is diagnosed with cancer, its a silent killer. Thats the problem. It can reach stage IV disease without producing symptoms. So, somebody comes to us I recently saw a 42-year-old young man who has just finished a game of tennis and come to see me, and suddenly, because he was exhausted and feeling so tired, and now I diagnosing him acute myeloid leukemia. I look at this toned and tanned young man, and the first thought that comes to me is about what we are going to do to him with the chemotherapy we are going to give him.

It is unconscionable that in 2019 I am still going to give this young man the same combination of two drugs that we popularly known as 7+3, that I was giving in 1977, when I arrived in this country. I feel ashamed of myself, having to repeat the same side effects, that you are going to lose all your hair, throw your guts out, and your counts are going to tank. Your blood counts will go down to essentially zero for weeks on end, where you are going to be susceptible to all kinds of terrible infections. You will be in the hospital suffering with shivering night sweats and fevers and all kinds of aches and pains and constitutional symptoms. And then there is a chance that a percentage of those patients will improve. So, this is what we do with just chemotherapy alone.

AMY GOODMAN: Were going to break and then come back to this discussion and also hear about your personal story with your own husband, also a renowned cancer doctor, who died of the very disease that he was studying, and hear the stories of your patients. Were talking to the renowned cancer doctor, the oncologist, the professor of medicine at Columbia University, Dr. Azra Raza. She has a new book. It is called The First Cell: And the Human Costs of Pursuing Cancer to the Last. Stay with us.

[break]

AMY GOODMAN: Nocturnes, Op. 27, No. 2, in D-flat major, _lento sostenuto _, performed by Abbey Simon. Abbey Simon passed away December 18th at the age of 99. This is Democracy Now!, democracynow.org, The War and Peace Report. Im Amy Goodman, with Nermeen Shaikh, as we spend the hour with Dr. Azra Raza, a renowned oncologist, professor of medicine at Columbia University, where shes also the director of the MDS Center a form of bone marrow cancer her new book, just out, titled The First Cell: And the Human Costs of Pursuing Cancer to the Last.

NERMEEN SHAIKH: So, Azra Apa, Dr. Raza, we were talking earlier, in the first part of the program, about the slash-poison-burn approach to treating cancer, which youve been very critical of, which involves surgery, chemotherapy and radiation. You say that this has been responsible for curing 68% of cancers. So a couple of questions: Would it have been possible, even though this is counterfactual, to cure such a high number of cancers using alternative methods? And, two, what kinds of advances have been made in how chemotherapy is administered and how the effects of that, of changes in the way that its administered, have had on patients?

DR. AZRA RAZA: Both very good questions. So, the first question you asked is what could have been really done. And what have we been aiming at doing? So, sure, we started by using these blunt approaches. Its literally like taking a baseball bat to hit a dog to get rid of its fleas. Thats how bad this kind of treatment is. But we had to do it because we had no alternatives. In the meantime, we invested billions of dollars in trying to study the biology of cancer, hoping that we will identify some intricate signaling pathway, some genetic defect, that is going to allow us to target it specifically. And this did happen in two diseases. In chronic myeloid leukemia, we developed a targeted therapy, because theres one gene had gone wrong, and one magic bullet could target it and cure the disease. Now we

AMY GOODMAN: And again, just to note, youre one of the worlds leading authorities on AML, this kind of cancer.

DR. AZRA RAZA: On this, Im talking about chronic myeloid leukemia. But yes, youre absolutely right: I am an expert in myeloid diseases. And CML, chronic myeloid leukemia, is something Ive treated for decades.

Now, this was a huge advancement that happened in the early 2000s, that we could now use a targeted therapy which is not chemotherapy, which only goes and attacks the abnormal cell which is expressing this protein. While it helped patients, its also put the field behind by 20, 30 years. Why? Because we felt that this now establishes a paradigm. Every cancer will be caused by one genetic defect, for which we just have to develop one drug. So, one gene, one targeted therapy. Everybody and their grandmother has been trying to find the one gene for pancreatic cancer, the one gene for acute myeloid leukemia. It turns out that, unfortunately, for all other cancers, most of them, really, there are too many genes that are mutated simultaneously. And so the targeted therapies weve developed, even for those multiple proteins or one protein that is dominant, it turns out it works for a little bit.

So, let me give you some statistics again. Ninety-five percent 95% of the new drugs that we are bringing, the experimental drugs we bring to the bedside, 95% of them fail. And to bring one of those drugs to the bedside is a billion dollars almost. So imagine how much we are losing. Five percent that succeed should have failed, in my opinion. Why? Because theyre only prolonging survival by a few months. So, for example, theres a drug that extends the life of a pancreatic cancer patient by 12 days, at the cost of $26,000 a year and not every pancreatic cancer patient, just a fraction. So think of the financial toxicity we are causing to these patients now. For very little prolongation and survival, we are financially ruining 42% of cancer patients diagnosed, newly diagnosed with cancer today, by year two. They lose every penny of their life savings.

AMY GOODMAN: Speaking of which, before we go on to the incredible stories you describe in The First Cell, your thoughts on Medicare for All? I have spent a lot of time accompanying family and friends, for example, at Sloan Kettering, who are dealing with cancer. The astounding devastation of peoples, aside from lives, financial destruction. Medicare for All, what would that mean for cancer patients?

DR. AZRA RAZA: Amy, while Im not an expert on these issues, I have common sense. And one thing I can say is that the current situation is completely untenable. We are on the verge of a collapse with the healthcare system. We cant continue it the way it is going. And, to me, the only solution seems to be but again, its not speaking as an expert is to have Medicare available for everybody. I think thats the only compassionate and humane solution.

NERMEEN SHAIKH: Well, Azra Apa, I want to ask you about another incident that you mention in the book, before going on to the longer case histories of patients in their own words as well as in the words of their family members. I mean, the cost of cancer treatment, as you say, in the U.S. is exorbitant, and many families have been driven to financial ruin. But what about in places where cancer treatment is so prohibitive that it entirely deprives patients of access? You talk about arriving in Karachi and meeting in Karachi, Pakistan, which is where youre from and talking to Zaineb, a cancer patient about whom you write, quote, How does one go in and talk to a thirty-five-year-old woman for whom dying from leukemia is only her second-biggest problem? Could you talk about that, access to cancer treatment and who the people are who are entirely deprived of any treatment at all?

DR. AZRA RAZA: This is a subject which is very close to my heart, Nermeen, because, obviously, I am from that part of the world. The entire world looks to America for leadership. What kind of leadership are we providing? A leadership where we are developing drugs or cellular therapies now that will cost over a million dollars per patient, for helping very few patients. These are rarified cases for whom this kind of treatment will work. As you said, what about the 20 million new cancer patients being diagnosed universally all around the world? We just dont have a compassionate solution for them. Why arent we thinking not just of those even in America, in the remote areas and many, many places where healthcare is becoming harder and harder to access just because hospitals are closing down from financial ruin themselves? Why arent we thinking of them? Why arent we thinking beyond American borders, for humanity as a whole?

And when you think about that solution, I mean, you dont have to be a genius. No, no, look, the only thing that works in cancer if you have someone who gets diagnosed with cancer, the first thing youll say is, Was it advanced, or was it caught early? No, early, so theres hope. We know that early detection helps, right? Why are we investing money in chasing down the last cell, in which with drugs which have a 95% failure rate today? Because the pre-clinical testing platforms we are using are so artificial, and thats why we are bringing up drugs that are not going to be successful.

Instead of doing that, why arent we simply improving on the techniques we know work? What worked? Early detection. How do you do early detection? Well, mammography, colonoscopy, Pap smear, etc., has been reached to their maximal limits. Lets develop the new technology so that from one drop of blood, you can put it on a little chip, which can be read by a cellphone, which costs $180 for 12 cancers to be diagnosed early. This is something that was just announced by a Japanese company. So these are things not that are a pie in the sky. These are things that are happening now. Except how fast will it happen to reach the rest of the world? It depends on the amount of resources we invest.

AMY GOODMAN: Were talking to Dr. Azra Raza. Her book is called The First Cell. She is a leading oncologist in the world. She is a Pakistani American, a Muslim, a woman. You talk about your own story in the book, the story of your husband, also a leading oncologist. Dr. Harvey Preisler died of lymphoma in 2002. You write, Cancer is what I had been treating for two decades, yet until I shared a bed with a cancer patient, I had no idea how unbearably painful a disease could be. Lets first turn to your daughter, to Sheherzad Raza Preisler, speaking at the memorial service for her father, your husband, about his cancer diagnosis and the effect his condition had on the family. The 15th Harvey Preisler Memorial Symposium was held in New York in 2017.

SHEHERZAD RAZA PREISLER: What a cruel twist of irony it was that as he was directing the Rush University Cancer Center in Chicago, he was cut down in the prime of his life by the very disease he had dedicated his life to cure. I was only 3 when he was diagnosed and 8 when he died. My parents took great pains to never mention the C-word in my earshot, and yet most of my memories of Dad are related, at least in part, to the presence of this nameless other in our lives. And even though I was too young to know what was going on at any tangible level, I had some sort of instinctual knowledge that something was terribly wrong. I could sense my mother struggle as she was navigating through stages of optimism, pain, dread, despondency and, eventually, hopelessness, as my dad underwent a seemingly endless stream of experimental treatments. These stages are what most cancer patients and their caregivers and families experience.

AMY GOODMAN: That was Sheherzad Raza Preisler, the daughter of our guest today, Dr. Azra Raza, oncologist, professor of medicine at Columbia University, talking about her dad, who died of one of the cancers that he specialized in. He was head, Dr. Harvey Preisler, of the Rush Cancer Institute in Chicago. Tell us, as you begin your book, what happened to your husband, what happened to Harvey.

DR. AZRA RAZA: First of all, Amy, when I started writing this book, I had no intention of putting Harvey into the book. I was writing about my other patients. But when I wrote about them in such detail and with such painful granularity, I felt it would be dishonest if I held back my own story. And so, at that point, I decided to add. And once I decided that, this story became like a red line running throughout the whole book, because then I couldnt escape, at every level, where Harvey came in.

Ill give you just one example. I mean, he was the head of the cancer center. He gets the very disease hes trying to cure. And now he dies, after a very, very exceedingly painful almost five-years battle. Sheherzad was 8 years old when he died. And a couple of weeks after he died, she developed a terrible cold and flu and was pretty sick for a few days and then started getting better. And one morning I was sitting in the living room reading, and she suddenly comes out crying inconsolably. I was sure that shes had a relapse and is much worse. But when I was able to calm her down, this is what she said, Amy. She said, Actually, I feel perfectly fine now. But I know what it feels like to be so sick and how good it is to get better. And my dad never got better. Which brought on a second fit of crying. So, an 8-year-old, at a visceral level, is able to experience the kind of anguish that cancer patients suffer.

Being a cancer widow, did it make me into a different kind of doctor? No. But my perceptions changed entirely. You know, Marcel Proust has said that real voyage does not lie in finding new landscapes, but in having new eyes. And so it became a voyage of discovery for me, in having new eyes.

AMY GOODMAN: And that issue of prevention, of catching early, what happened in your husbands case? Who I mean, he was head of a major cancer institute.

DR. AZRA RAZA: The same thing that happens to all other cancer patients: He was diagnosed way too late. And actually, the lymphoma didnt kill him. The treatment we gave killed him. The chemotherapy we gave destroyed his immune system, so that he died eventually of sepsis. He didnt die of the lymphoma.

Theres a family friend of ours who once told my younger brother he said, Abbas, if the sun rose suddenly from the west one day, the entire world will stop and stare at it. But there are some people who watch the sun rise from the east every day, and they wonder why. And he said, Those are the only kinds of people who can make a difference in the world.

And thats the kind of person Harvey was. He was an extremely thoughtful person with a great curiosity about life in general, but specifically scientific issues. Yet what I learned from taking care of him and sharing a bed with him as a cancer patient was a deeply humbling acceptance of his condition. Basically, his attitude was I am a man, and a man is responsible for himself, even though I know that this is not going anywhere.

AMY GOODMAN: You write at the beginning of your book, in your introduction, From Last to First, talking about that idea of the first cell, I have learned new things about what I thought I already knew: like the difference between illness and disease; between what it means to cure and to heal; between what it means to feel no pain and to feel well. Can you elaborate on this?

DR. AZRA RAZA: I mean, really, the whole concept of this is can be expressed better in poetry. So, if you dont mind, I will recite a short piece by Emily Dickinson:

I measure every Grief I meetWith analytic eyes I wonder if It feels like Mine Or has an Different size.

I wonder if They bore it long Or did it just begin I cannot find the Date of Mine Its been so long a pain

I wonder if it hurts to live And if They have to try And whether could They choose between They would not rather die.

NERMEEN SHAIKH: Well, I want to ask about another patient who you profile in the book, who is in fact subjected to a particularly brutal form of this slash, burn and poison. And thats Andrew Slootsky, who died in 2017 at the age of only 23. The book includes a testimonial from his mother, Alena, who criticizes the attitude of the oncologists who treated him, but says she would have wanted Andrew to undergo any treatment that might have extended his life. So, could you talk about Andrew was also one of the best friends of your daughter, Sheher. Could you talk about the treatment that he was subjected to? What happened? And also your decision one of the most remarkable things about this book is not just, of course, your expertise in cancer and cancer treatment, but also these stories that you weave into the narrative, of patients youve treated, of patients families who have witnessed their family members being treated in this way and ultimately dying. And this is Alena, Andrews mother, saying that she would have Andrew go through all of this treatment, even if it meant the slightest possibility of extending his life.

DR. AZRA RAZA: Yes. Nermeen, actually, Andrew is the impetus for me to write this book. In 2016, when he gets diagnosed with cancer, he has weakness in his arm. He goes to the emergency room. They do an MRI. They find an inoperable brain tumor, nine centimeters long. They couldnt remove it. From the day one, every oncologist that treated Andrew knew that his chance of survival is 0.00, beyond what is to be expected. No matter what we give him, he was going to die. We all knew it.

This boy, when he opened his eyes, coming out of anesthesia, he turned to his mother, and he said, Mom, dont worry. Just call Azra. Shes on the cutting edge. She will find the best treatment and cure for me. And Alena called me. This young man, whos been in and out of my house since hes 15 years old, because hes best friends with my daughter. I felt so ashamed of myself that there is nothing I can offer this poor boy, and the fact that we are failing the Andrews and the Zainebs and the Harveys and the Omars of this world so spectacularly, and instead of feeling embarrassed, we go around pumping our chest, claiming that we are curing 68% patients. Sixty-eight percent of what? again and again I ask.

And what we do to Andrew in the next 16 months, even though we knew his chance of survival is zero, is we give him chemotherapy, radiation therapy, surgery after surgery, more chemo, more radiation, more immune therapy. And he suffered the side effects of every one of them, without benefiting from anything.

But then, the converse is also a problem. Lets say we didnt treat him and let the brain tumor take over. That death from advanced cancer is just horrendous. So, basically, the treatment, what are the choices we offered Andrew at this point? Either you die of your cancer or die of the treatment, but you are going to die. And the question I ask myself is Why? Why was Andrew diagnosed when his cancer was nine centimeters long? We know that cancer is a silent killer. We know no age is immune to getting cancer. At 22, this boy got cancer.

AMY GOODMAN: And specifically in his case, how could it have been detected earlier? Talk about the tests that you think need to be developed, and are actually already there but somehow missed him?

DR. AZRA RAZA: So, Amy, I am calling for a complete paradigm shift. What Im saying is that even the screening measures that we are using annually, for example, doing a mammogram is too late for some people. What we need to do is consider the human body as a machine and continuously learn to monitor it for the detection of diseases, whether its Alzheimers or cancer or diabetes. We need to catch all of these diseases early and try to nip them in the bud. This is what Im asking for. So, what has to be done for that? Children get cancer. Not that many, but certainly they do. And again, we treat them with these draconian measures, and they end up with developmental issues, fertility issues, all kinds of problems. So, what Im asking for is we need to develop those markers that can identify cancer at its inception. It is doable. It is possible.

A lot of research is going on, in this country and elsewhere also, to find footprints of cancer, for example Ill give you a couple of examples. When cancer starts, it divides fast its cells divide faster than normal cells, which means it needs more nutrition, so it starts making new blood vessels. As soon as that happens, the area becomes hot because of new blood going into that one area. This hot area can be detected. People are developing bed sheets and mattresses where you can go to sleep and you are overnight youre being scanned for hot areas. Lets say a hot area is detected in my pancreas one day. It doesnt mean the next morning I should have an open abdominal surgery and eviscerated and removal of all my no, it means that now theres something abnormal which needs to be monitored. I am now considered someone at high risk, so I should be monitored for other biomarkers. These cells which are developing in my pancreas will be shedding their proteins into the bloodstream. If theyre not shedding, you know one thing we can do? We can yell at them. How do you yell at them? You use sound waves, literally, ultrasound, to hit them. And they start shivering, and they start shedding their proteins into the blood. And we get the blood and detect the biomarker.

AMY GOODMAN: Is there a cancer-industrial complex thats preventing this kind of research and development of the preventive and the early-detection approaches to cancer?

DR. AZRA RAZA: Absolutely not, Amy. In fact, my contention and my conceit is that if heres an industry that is investing in an enterprise that has a 95% chance of failure, but they keep investing billions of dollars, because if one of their drugs makes it, if it improves survival by 10 seconds more than two months

AMY GOODMAN: So youre saying there is a cancer-industrial complex that is

DR. AZRA RAZA: But theyre not preventing it.

AMY GOODMAN: Right.

DR. AZRA RAZA: They just dont know whats a better thing to do. So, what Im saying is, we just set a new goal, and we financially incentivize the goal, then all these people will turn around and come to the first cell instead of going after the last cell.

AMY GOODMAN: What about Vice President Bidens moonshot challenge around curing cancer?

DR. AZRA RAZA: I was one of the fortunate people to meet Vice President Biden in his across his dining room table for the cancer moonshot and had a very wonderful discussion with Vice President Biden. His heart is in the right place. And there is a certain fraction of that billion dollars, the money that he has allocated for cancer research, is definitely towards prevention and early detection of cancer. But its not enough. That kind of vision is what we really need. But we need Im not saying all current research should stop. Nobody should misquote or mishear me. I am saying we have correct patients. Of course we have to worry about them, and we have to keep developing better treatments and better understanding of biology. But I think at least half of the resources, and all the resources going into these failing clinical trials, these billions and billions of dollars, can be redirected for future patients to try and detect the disease early a solution which will be applicable universally.

AMY GOODMAN: We have to break. Then were coming back to our guest, Dr. Azra Raza, oncologist, professor of medicine at Columbia University, where she directs the MDS Center, a form of bone marrow cancer. Her new book is out. Its called The First Cell: And the Human Costs of Pursuing Cancer to the Last. Stay with us.

[break]

AMY GOODMAN: New York by St. Vincent. The photos in the video were compiled by Kat Slootsky for her brother Andrew, one of the patients profiled in Dr. Azra Razas book, The First Cell: And the Human Costs of Pursuing Cancer to the Last. He died when he was 23 years old, of a particularly aggressive form of brain cancer. Im Amy Goodman, with Nermeen Shaikh. Were spending the hour with Dr. Azra Raza, the renowned oncologist, professor of medicine at Columbia University. Nermeen?

NERMEEN SHAIKH: So, Azra Apa, I want to ask you about one of the criticisms that your book has come under. In The New York Times, Dr. Henry Marsh praises the book but says youre too optimistic about the solutions you propose. Marsh writes, quote, Her diagnosis of the ills from which cancer treatment suffers strikes me as accurate, but her solutions seem infused with the same unrealistic optimism she identifies as the cause of so much suffering. This is Dr. Henry Marsh writing in The New York Times. Are you guilty of too much optimism?

DR. AZRA RAZA: No. Thats the short answer. But, Nermeen, you know, I started my career in oncology basically in 1977. I was 24 years old, fresh out of med school. I had come here. I started working at Roswell Park Cancer Institute, because I was going to cure cancer very quickly, I thought. And within seven, eight years, it was very clear to me, the disease that I had invested all my energies in, acute myeloid leukemia, that in my lifetime this disease will not be cured. It is so complicated.

So, at that point, I turned my attention toward studying an earlier form of the disease, because many of my patients who came with acute leukemia gave a history of having had some low blood counts and being anemic for a few months before it developed to leukemia. So I said to myself, Why not catch this disease earlier, the pre-leukemia phase, and intercept then and not let it become this end-stage monstrosity?

So I started collecting this is where being an immigrant helped me, Amy, because had I gone to school in this country, if I had started to study acute leukemia, my next step would have been to make a mouse model of this disease, which are very artificial and which just for drug development, at least. Theyre very good models for studying biology, but not for drug development. But because I was an immigrant, I simply started saying, Oh, I have to study cancer, so let me save these cells. And I started banking cells on my patients. Today I have a tissue repository which has 60,000 samples from thousands of cancer patients, followed longitudinally, well annotated, with all their clinical and pathologic data in the computerized forms. And this is a very precious resource, one of a kind. Not one single cell comes from another physician. I still do the bone marrows with my own hands, which Im going to do in the next hour, when I get to my clinic.

But the idea I had was that earlier detection will help. That was many years ago. Wheres my solution? So, the question you ask me and the criticism that Dr. Marsh is giving can be applied to me, yes, that 35 years ago I felt that detecting the disease early, pre-leukemia, would help me. It hasnt helped me, because pre-leukemia itself is a very malignant disease and can kill.

So then I realized that by using these samples of acute leukemia, working my way back to pre-leukemia, I can then ask the question: Why did some people get pre-leukemia, to begin with? Why did they get MDS? And once we can discover that, by using these tissue samples and the latest technology of proteomics, genomics, transcriptomics, metabolomics, panomics, we will find the same kind of thing you have, say, for breast cancer, the BRCA gene. Can we find something thats making people susceptible because of their inherited DNA?

AMY GOODMAN: What about targeted immunotherapy? People think that it has gone so far to help cancer patients. What is it? And what do you see are the prospects for it?

DR. AZRA RAZA: The answer to that is, first, you have to understand what is the cell therapy. So, there are many, many different forms of immune therapies, fourteen, fifteen different kinds. But the ones that are receiving all the attention are basically two types. Checkpoint inhibitors are drugs which cancer cells so, every cell expresses proteins that either say, Eat me, or Dont eat me. Cancer cells learn to express only proteins that say, Dont eat me. Dont eat me. Dont. So, this is how they deflect the immune system.

AMY GOODMAN: We have less than a minute.

DR. AZRA RAZA: And so, we tried drugs to do that. We succeeded. The response doesnt last. The other form of therapy is cell therapies that we use. Immune therapy using cells T cells, for example cannot distinguish between a normal cell and a cancer cell in the organ. All we can do is we can activate these T cells and say, Go kill the whole organ, and cancer will die with it. So the only cells we have succeeded in killing, or the only organ we have succeeded in killing, so far, is B cells, which are a kind of lymphoid cells in the body.

AMY GOODMAN: Ten seconds.

DR. AZRA RAZA: We kill them, and then we replace B cell function by giving immunoglobulins for the rest of their time. We cant do that for the liver. We cant kill the liver and expect to replace it. Thats why immune therapy using cells is not going to work.

AMY GOODMAN: Well, were going to have to leave it there, but people can pick up the book and take it from there. Dr. Azra Raza, oncologist, professor of medicine at Columbia University, heads up the MDS Center, a form of bone marrow cancer. Her new book, The First Cell: And the Human Costs of Pursuing Cancer to the Last. Im Amy Goodman, with Nermeen Shaikh.

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Long Non-Coding RNA TTN-AS1 Promotes the Proliferation and Invasion of | OTT – Dove Medical Press

Posted: December 26, 2019 at 11:43 pm

Zhenhua Cui,1 Bingbing Han,2 Xianren Wang,1 Zhiwen Li,1 Jianxin Wang,1 Yanfeng Lv1

1Department of Colorectal & Anal Surgery, The Second Hospital of Shandong University, Jinan 250033, Peoples Republic of China; 2Microcirculation Laboratory, Shandong University of Traditional Chinese Medicine, Jinan, 250014, Peoples Republic of China

Correspondence: Yanfeng LvDepartment of Colorectal & Anal Surgery, The Second Hospital of Shandong University, No. 247 BeiYuan Street, Jinan 250033, Peoples Republic of ChinaEmail ttdpilsxpsle11@163.com

Introduction: Long non-coding RNAs (lncRNAs) have obtained increasing attention due to their regulatory functions in many cancers. This work aimed to investigate the functional roles of lncRNA TTN-AS1 in colorectal cancer (CRC) and to explore the underlying mechanisms.Methods: The expression profiles of TTN-AS1 and miR-497 in CRC tissues and cell lines were determined by RT-qPCR analysis. MTT assay, transwell assay, western blot analysis, and xenograft tumors in nude mice were employed to analyze the effects of TTN-AS1 on the proliferation, migration, invasion, EMT, and in vivo tumorigenesis of CRC cells. Bioinformatics analysis and dual-luciferase reporter assay determined the direct binding relation betweenTTN-AS1 and miR-497 in CRC.Results: We observed a significant increase of TTN-AS1 expression level in CRC tissues and cell lines compared with normal counterparts. High expression of TTN-AS1 predicted a poor prognosis and was correlated with aggressive clinicopathological characteristics in CRC patients. Functionally, gain- and loss-of-function studies indicated that TTN-AS1 knockdown suppressed the proliferation, migration, invasion and epithelialmesenchymal transition of CRC cells in vitro, whereas TTN-AS1 overexpression showed the complete opposite effects. Mechanistically, we found that TTN-AS1 could directly interact with miR-497, and co-transfection with miR-497 mimics blocked the activation of PI3K/Akt/mTOR signaling, and reversed the effects of TTN-AS1 overexpression in CRC cells.Conclusion: To conclude, our findings provide novel insight into CRC tumorigenesis and indicate that TTN-AS1 may serve as a potential therapeutic target for CRC treatment.

Keywords: colorectal cancer, long non-coding RNA TTN-AS1, epithelial-mesenchymal transition, microRNA-497, PI3K/Akt/mTOR signaling

This work is published and licensed by Dove Medical Press Limited. The full terms of this license are available at https://www.dovepress.com/terms.php and incorporate the Creative Commons Attribution - Non Commercial (unported, v3.0) License.By accessing the work you hereby accept the Terms. Non-commercial uses of the work are permitted without any further permission from Dove Medical Press Limited, provided the work is properly attributed. For permission for commercial use of this work, please see paragraphs 4.2 and 5 of our Terms.

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Medical discoveries about pregnancy could shed light on Mary as Mother of God – Crux: Covering all things Catholic

Posted: December 26, 2019 at 11:43 pm

[Editors Note: Kristin Marguerite Collier is an Assistant Professor of Internal Medicine at the University of Michigan Medical School where she practices general Internal Medicine. She serves as an Associate Program Director of the Internal Medicine Residency Program and is the Director of the Programs Primary Care Track. In addition, she is the Director of the University of Michigan Medical School Program on Health, Spirituality and Religion. She spoke to Charles Camosy about Mary, Jesus, and pregnancy.]

Camosy: So here we are at the end of Advent, with Marys pregnancy with Jesus at the front of our minds. Whats the first thing which comes to your mind when you think about this?

Collier: The first thing that comes to my mind is love that God so loved the world that he sent his only begotten son so that whoever believes in him should not perish but have eternal life. The fact that the creator of the universe chose a woman to bear his son to be our Savior is beautiful and awe-inspiring. Out of these emotions, flows a sense of gratitude and peace as I await with solemnity, during Advent, the birth and coming of our Lord Jesus Christ.

Obviously medical science is quite interested in studying and continuing to learn about pregnancy. What are some things that Crux readers might not know about the science behind the relationship between mother and prenatal child?

Through advances in prenatal imaging and the field of immunology, the truly wondrous miracle that is pregnancy is now being more fully understood. Two aspects of pregnancy that your readers might be interested in knowing more about relate to the placenta and something known as fetomaternal microchimerism.

As many of your readers may know, the placenta is the organ through which the mother and prenatal child interface. The placenta is an organ that is attached to the inside of the uterus and connects to the prenatal child through the childs umbilical cord.

What is not as well known about this organ is that the placenta is the only organ in human biology that is made by two persons, together, in cooperation. The placenta is built from tissue that is part from mom, and part from the growing baby. Because of this, the placenta is referred to as a feto-maternal organ. It is the only organ made by two people, in cooperation with providence. It is the first time mom and her baby come together, albeit at the cellular level, to do something in cooperation.

Whenever I think of this, I picture the ceiling of the Sistine Chapel, where Michelangelo depicts God and Man reaching out for one another, hands about to touch and perhaps entwine. In the creation of the placenta, cells from the trophoblast, which are from the embryo, reach down towards the mothers uterine wall while at the same time, the spiral arteries from the mothers uterus are reaching up towards the embryo. This process leads to the creation of the placenta.

The placenta is the only purposely transient organ in humans and unlike the rest of our organs, acts as many organs in one. The placenta functions to eliminate waste, like the kidneys would do, facilitates transfer of oxygen and carbon dioxide, like the lungs would do, and provides nutrients, like a GI tract would do. It even has endocrine and immune function. What used to be discarded as just the afterbirth is now regarded as a magnificently complex shared organ that supports the formation of the prenatal child.

The placenta is such an important organ that the National Institutes of Health (NIH) has established, under its Eunice Kennedy Shriver National Institute of Child Health and Human Development arm, the Human Placenta Project (HPP). The website says The placenta is arguably one of the most important organs in the body. It influences not just the health of a woman and her fetus during pregnancy, but also the lifelong health of both mother and child. The aim of the HPP is to better understand, through research, the amazing placenta with the ultimate goal of improving the health of children and mothers. The research done by the HPP continues to demonstrate that a childs prenatal and postnatal health is inextricably linked to the health of the placenta.

In addition to the placenta, mother and prenatal child interact at a cellular level in something known as fetomaternal microchimerism. In Greek Mythology, the chimera is a fire breathing monster comprised of three species in one a lions head, a goats body and a serpents tail. In science, microchimerism is the presence of a small population of genetically distinct and separately derived cells within an individual. During pregnancy, small numbers of cells traffic across the placenta. Some of the prenatal childs cells cross into the mother, and some cells from the mother cross into the prenatal child. The cells from the prenatal child are pluripotent and integrate into tissues in her mothers body and start functioning like the cells around them. This integration is known as feto-maternal microchimerism.

The presence of these cells is amazing for several reasons. One is that these cells have been found in various maternal organs and tissues such as the brain, the breast, the thyroid and the skin. These are all organs which in some way are important for the health of both the baby and her mother in relationship. The post-partum phase is when there is need, for example, for lactation. The fetomaternal microchimeric cells have been shown to be important in signaling lactation. These cells have been found in the skin, for example, in Cesarean section incisions where they are helping to produce collagen. Baby is helping mom heal after delivery by the presence of her cells! It would be one thing for these cells to come into the mother and be inert, but is a whole other thing entirely that these cells are active and aid mom for example in helping to produce milk for her baby and helping her heal. These cells may even affect how soon the mother can get pregnant again and therefore can affect spacing of future siblings.

Usually, foreign or other cells are detected by the host immune system and are destroyed. The fact that these fetal cells survive and then are allowed to integrate into maternal tissue speaks to a cooperation between the mother and her child at the level of the cell that parallels that seen in the development of the placenta, suggesting that the physical connection between mom and baby is even deeper and more beautiful than previously thought. Research in fetomaternal microchimerism suggests that the presence of these cells may favorably affect the future risk of malignancy. The presence of these cells in the maternal breast may help protect mom from breast cancer years after the babys birth.

To think that a physical presence of the baby in her mother is helping protect her from cancer at the level of the cell, speaks to a radical mutuality at the cellular level that we are just beginning to understand. Some of the effects of fetomaternal microchimerism, however, may be detrimental in some cases. This research is still underway. The big takeaway is that the science of microchimerism supports the fact that some human beings carry remnants of other humans in their bodies. Thus, we arent the singular-autonomous individuals we think of ourselves as being.

This is astonishing! Why do you think these facts are not more widely known? Why arent pregnant women, or new mothers, informed of stuff like this?

I agree. It is truly astonishing. Im not entirely clear why this type of information isnt more widely known or made available in information given to women as they go through their pregnancy. I can only hypothesize on reasons why. In my opinion, pregnancy, like so many other conditions experienced by people, has been purely medicalized and distilled down to practical facts. Having had the blessing of four pregnancies myself, I remember the information that I was given. I received information about what I, as a pregnant woman, may experience regarding changes in my body or other common symptoms related to pregnancy, and was given a timeline with expected growth of the baby at each stage. I recall very little communication by the medical staff that spoke to wonder or awe in the process. I know that most women experience an immense sense of wonder and awe during their pregnancy that sometimes isnt celebrated and discussed perhaps as much as it should be. The implicit message I fear women get sometimes is that billions of women before you and after you have and will become pregnant and this isnt as special and amazing as you personally think it is. But yes it is! As Einstein said, you either believe everything in this life is a miracle or nothing is.

Lets turn back to theology. Especially in light of Marys pregnancy with Jesus, what theological implications are there for these new things we are learning?

I am not a theologian, however, I think the existence of fetomaternal microchimerism speaks to an interconnectedness at the cellular level by Gods design. As I wrote about in a piece for Church Life Journal earlier this year, we see relationship at the heart of the Scriptures. We see that God, the maker of all things, is in a covenant bond with his people. We would be wrong to think that God, being the maker of all things, and being relational in his very nature, would not reveal in our biology a relational nature.

As a non-Catholic Christian, what implications does this medical science have, in your view, for Catholic veneration of Mary as Mother of God?

Jesus Christ redeemed every stage and aspect of our bodies through which he has passed. The Word became flesh in Marys uterus. Therefore, the uterus is a sacred space because it held our Lord and Savior. If we consider the biological reality of fetomaternal microchimerism, we can assume that some of Jesus cells transferred across the placenta in Marys womb into the Blessed Mother. What we could take from this is that even when Jesus physically left his mother, part of him remained in her and remains in her forever. This further magnifies her position as the glorious Theotokas.

I can also imagine that fetomaternal microchimerism can carry significant meaning not only for Catholic women, but for all women who have lost prenatal children or children after birth because we know that mothers have always thought, in some way, their children, even after death, were still with them. Now we see, through the lens of fetomaternal microchimerism, that they still are.

Crux is dedicated to smart, wired and independent reporting on the Vatican and worldwide Catholic Church. That kind of reporting doesnt come cheap, and we need your support. You can help Crux by giving a small amount monthly, or with a onetime gift. Please remember, Crux is a for-profit organization, so contributions are not tax-deductible.

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Prevail Therapeutics Announces IND Active for PR001 for Treatment of Neuronopathic Gaucher Disease | DNA RNA and Cells | News Channels -…

Posted: December 26, 2019 at 11:41 pm

DetailsCategory: DNA RNA and CellsPublished on Thursday, 26 December 2019 15:57Hits: 327

NEW YORK, NY, USA I December 26, 2019 I Prevail Therapeutics Inc. (Nasdaq: PRVL) (Prevail or the Company), a biotechnology company developing potentially disease-modifying AAV-based gene therapies for patients with neurodegenerative diseases, today announced that the U.S. Food and Drug Administration (FDA) has notified Prevail that the Companys Investigational New Drug (IND) application for PR001 for the treatment of neuronopathic Gaucher disease (nGD) patients is now active and that Prevail may proceed with initiating its proposed clinical trial. As previously reported, Prevails IND for PR001 for the treatment of nGD had been put on clinical hold by the FDA, and this clinical hold has now been removed.

The Companys planned Phase 1/2 clinical trial for nGD patients will commence at a dose higher than originally proposed. Prevail submitted nonclinical data in which no PR001-related safety events or adverse findings were observed, supporting the initiation of the Phase 1/2 clinical trial at this higher dose.

Prevail is activating a Phase 1/2 clinical trial for Type 2 Gaucher disease patients and expects to initiate patient dosing during the first half of 2020. Type 2 Gaucher disease is the more severe form of nGD, which presents in infancy and involves rapidly progressing neurodegeneration leading to death in infancy or early childhood. The Company also plans to initiate a Phase 1/2 clinical trial for Type 3 Gaucher disease patients in the second half of 2020, under the same nGD IND. Type 3 Gaucher disease is a form of nGD that typically presents in childhood and involves multiple neurological manifestations.

We are pleased to now have an active IND for PR001 for the nGD indication and look forward to initiating a Phase 1/2 clinical trial in the first half of 2020, said Asa Abeliovich, M.D., Ph.D., Founder and Chief Executive Officer of Prevail. Patients with nGD have the most severe form of Gaucher disease and a significant unmet need for therapies to treat their neurological manifestations. We believe PR001 has tremendous potential to help patients suffering from this devastating disease.

Prevail is also developing PR001 for Parkinsons disease patients with a GBA1 mutation (PD-GBA). The Company has an active IND for PR001 for the treatment of PD-GBA and the PROPEL Phase 1/2 clinical trial for PD-GBA patients is now recruiting.

About Neuronopathic Gaucher DiseaseGaucher disease is a lysosomal storage disorder caused by mutations in the glucocerebrosidase gene GBA1, leading to multi-organ pathology. Patients with severe mutations in the GBA1 gene can present with neuronopathic Gaucher disease, also termed Type 2 or Type 3 Gaucher disease. Type 2 Gaucher disease presents in infancy and involves rapidly progressive neurodegeneration leading to death in infancy or early childhood. Type 3 Gaucher disease typically presents in childhood and can involve neurological manifestations such as gaze and motor abnormalities and seizures. There are no therapies approved by the FDA for the treatment of neuronopathic Gaucher disease.

About Prevail TherapeuticsPrevail is a gene therapy company leveraging breakthroughs in human genetics with the goal of developing and commercializing disease-modifying AAV-based gene therapies for patients with neurodegenerative diseases. The company is developing PR001 for patients with Parkinsons disease with a GBA1 mutation (PD-GBA) and neuronopathic Gaucher disease; PR006 for patients with frontotemporal dementia with GRN mutation (FTD-GRN); and PR004 for patients with certain synucleinopathies.

Prevail was founded by Dr. Asa Abeliovich in 2017, through a collaborative effort with The Silverstein Foundation for Parkinsons with GBA and OrbiMed, and is headquartered in New York, NY.

SOURCE: Prevail Therapeutics

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S’porean RP graduate-turned-Ivy League pre-med once told that poly students won’t make it into medicine – Mothership.sg

Posted: December 26, 2019 at 11:41 pm

Piragathesh Subramanian wears many hats.

As evident from his email signature, which takes up about one third of my phone screen, Piragathesh is a representative for international students at the Columbia Universitys General Studies Students Council, the president of the Columbia-Barnard Reflect, and thats on top of his double major as a fifth year student in Neuroscience and Behaviour & Pre-Medicine at Columbia University.

All at the age of 26.

What is perhaps also atypical of Pira (and also a reflection of changing educational trends) is that he went to university through the polytechnic route, which is still relatively unconventional. He said:

In fact, when I first started out in Republic Polytechnic, both my secondary school teachers and Republic Polytechnic [lecturers] did mention that the path towards medicine from a polytechnic route was either non-existent or very difficult.

When I told my colleagues about him, one of them said, Wah, hes really smart.

The cut-off Grade Point Average of past polytechnic students who enter local universities vary each year, but for the popular courses, they usually hover between 3.6 and 3.8 (out of four).

For even more prestigious Ivy League institutions like Columbia, its higher. Pira managed to get in with a perfect GPA score of 4.0, which he managed to sustain throughout his time in Republic Polytechnic no mean feat.

He might seem like your typical Asian overachiever, but Pira tells me, over email, that being in the medical field was not what he originally wanted.

He had (literally) sky-high ambitions to be a pilot.

Since young, I have been fascinated with planes and the idea of flying, he wrote. Having parents who worked for Singapore Airlines probably factored into that childhood dream.

However, that dream changed when Pira encountered the wonders of life sciences in Dunman Secondary. That shifted my interest towards medicine, he wrote.

For most, going to junior college is the conventional (and more direct) route to take if one wishes to pursue medicine. But it was not for Pira, who did not like taking tests.

Back in the day there was an emphasis on school bandings and how O Level scores tend to affect a schools placement.

It put him under a lot of pressure and while he managed to score decently for his O levels, the entire experience made him realise one thing: That the conventional A level route was not for him:

I was keen on pursuing medicine and wanted to (take) a different route. I wanted to study subjects that catered to my interest.

Deciding against junior colleges, Pira turned to local polytechnics. He decided a Diploma in Biomedical Science would bring him closer to his dream of being a medical professional.

Back in 2010, only four polytechnics offered biomedical courses and each of them had their own areas of specialisation with amazing levels of research in their respective fields, according to Pira.

It was a tough choice, but in the end, he chose to enrol in Republic Polytechnic at 17 years old because he felt that its approach to biomedicine is more holistic, which best suited his learning needs.

To me, Republic Polytechnic felt like the ideal option as they had a biomedical programme that focuses on various medical topics and they organised their modules in a (complementary manner each semester).

The course is comprehensive. Students study human anatomy, gain insights into the molecular and physiological basis of different diseases (as well as their treatment) and even perform research and laboratory diagnostics.

Pira also liked that RPs Biomedical Science Diploma offers students the choice of two specialisation options: the Biomedical Research track and the Medical Technology track.

He chose the former where he delved into neurobiology, genomics, oncology, microbiology, among others.

I found the modules to be very interesting, he added.

However, his choice was met with some initial resistance from relatives and friends who saw Republic Polytechnic as an underperforming school for academically weaker students.

However, that was not the case. Many of my Republic Polytechnic peers are doing very well in their respective fields, he wrote.

Pira said that these stereotypes were disheartening, especially after he decided to choose Republic Polytechnic.

However, despite the criticisms, I took all the information that Ive heard with a pinch of salt and focused my efforts on what needed to be achieved, he said.

So what did he enjoy during his time at Republic Polytechnic?

Aside from the polytechnics dynamic approach to academics, as well as the rigour of handling challenges and difficult situations, Pira appreciated how RPs Problem-based Learning and hands-on approach encouraged him to identify new solutions for current medical conditions.

I was also fortunate to be allowed to undertake internships at both the National University Hospital Surgical Centre and the Genome Institute of Singapore.

During his internship, Pira experienced first-hand working with a breast cancer team.

The team comprised the Human Genetics Team from the Genome Institute of Singapore, the Surgery Team from the National University Hospital and the Epidemiological Team from the National University of Singapores School of Public Health.

One of the most important things that Pira picked up during that 15-week internship was the inter-personal skills through speaking with medical workers, allied health professionals, and patients, especially the terminally ill.

I learned that human compassion is very important in the field of medicine. Patients need to be comforted with a sense of assurance, care, and positiveness; as a result, I do believe that as a doctor besides having to diagnose and cure illness, I should empathise (with patients) and help build their spirits.

Aside from his internships, Pira also had the chance to take part in extra-curricular activities.

For one, he took part in the first ever Singapore Youth Model Parliament where he was assigned the portfolio for the Minister of State for Health and Member of Parliament of Tampines-Changkat GRC.

It was here that I realised what attributes and knowledge one had to harness to become a good leader. I was empowered with self-confidence to meet challenges and had opportunities to sharpen my oratorical skills when I addressed audiences.

Piras time at Republic Polytechnic would not have been complete without his lecturers. One lecturer in particular, Dr Ventris De Souza, Piras genomics lecturer, left a lasting impact on him.

I did not do well in my first exam, he wrote.

I remember approaching her and she (sat down) with me and guided me in understanding concepts about genomics. [WIth her] her guidance, I was able to ace that module with flying colors.

And it was this belief from his lecturers that drove Pira to try his best.

My [lecturers] believed that I would be able to set a certain precedence by entering a medicine-based programme from a polytechnic route. This motivation and drive from my teachers and peers has allowed me to become Republic Polytechnics first ever-Ivy League student who is pursuing Neuroscience and behaviour, pre-medicine and human rights.

Dr Ventris dedication is just one of the many examples of Republic Polytechnic lecturers who go beyond their call of duty for students.

What I can say is, I stand upon the shoulders of giants and my success was due to my lecturers guidance, added Pira, who regularly returns back to Singapore to catch up with this school friends and mentors.

It was because of their encouragement, I was able to carry out my passions, he wrote, adding that their motivation helped him to achieve a SAT score of 2290/2400 in 2014, and the rest is history.

Pira will be graduating from Columbia University in 2020, before he starts medicine in 2021. He shares that he will be returning to Singapore when he finishes his studies in 2025.

Reading Piras story made me think about how there is no such thing as a fixed education route. His story is a testament to how people can still succeed when they take the path less travelled.

Choose your own path, Pira advised. There is no such thing as the right education path. Everyone has their own needs and wants. Therefore do not be afraid to choose an academic route that suits you.

If youre interested, you can read about Republic Polytechnics Diploma in Biomedical Science course here. You can also find information on other courses at Republic Polytechnic here.

Republic Polytechnic will also be holding Admissions Talks for the Joint Admissions Exercise on the following dates:

11 Jan 2020 (Sat), 11am & 4pm14 Jan 2020 (Tue), 7pm 9pm

Click here to sign up.

Top image by Piragathesh Subramanian. Quotes were edited for clarity.

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Do Our Bodies Have Weight ‘Set Points’ They Always Revert To? – Discover Magazine

Posted: December 26, 2019 at 11:41 pm

Weve all been there. Youre prepping your meals, counting calories and hitting the gym with gusto. Then, you step on the scale to see that your weight has boomeranged back to the same old number. What happened?

Theres actually a scientific explanation for why the human body always seems to revert to its previous weight. Say hello to the set point theory. You can think of your set point as your natural body weight or the number that it usually hovers around on the scale. Both genetics and environmental factors contribute to a persons set point.

Basically, the theory holds the body uses different regulatory mechanisms to defend a default weight range. When you take in less calories, for example, the body fights the deficit by slowing your metabolism and boosting your appetite. Though set point theory hasnt been fully validated yet, it may make dieting difficult not just in terms of losing weight, but actively keeping it off.

There are some ways to outsmart this pesky biological tendency, though. Some studies suggest losing just 5 to 10 percent of your body weight at a time. By losing weight gradually, you can potentially lower your bodys set point.

Read more:

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The travellers within us – Myanmar Times

Posted: December 26, 2019 at 11:41 pm

From the cradle to the grave

There is evidence to suggest that the unique microbiome of each person starts to take shape even while we are still growing in the womb. From birth and throughout life, it continues to develop and evolve, influenced by genetics, as well as environmental factors such as diet, nutrition and exposure to drugs such as antibiotics.

It is estimated that an average adult carries about two kilograms worth of microbes in their gut. In fact, the number of these organisms often outnumber our own cells. Most of the time, we may be carrying more microbial genes than human genes in our bodies. The latter aid in digestion and help produce essential vitamins (such as vitamins B and K) and maintain a healthy gut by preventing overgrowth and invasion by disease-causing microbes. But increasingly, research is finding that there is more to our microbiomes than just promoting gut health: It can impact weight, immunity, mood, behaviour, energy and overall wellness.

Some experts claim that up to 90 percent of diseases can be traced back in some way to the gut and the health of the microbiome. The gut microbiome, and its diversity, has been shown to influence many conditions not traditionally considered microbe related from whether a person develops obesity, heart disease, asthma or diabetes, to neurological conditions such as Parkinsons disease and dementia, to development of cancer, right down to how well we respond to chemotherapy and vaccines.

A new frontier

Microbiome research is an exploding field of science growing at an exponential rate. New knowledge is being added almost daily. The organisms being discovered have names not found in textbooks, being unknowable to us a mere few years ago. Unlike their disease-causing counterparts, they live symbiotically within the host and are not found in clinical specimens. But advances in genetic analysis technology have propelled the exploration of this new frontier of science.

Researchers have now identified more than 10,000 species of microbes living in and on the human body. The next challenge is to tease out and define the apparent associations between the microbiome, health and disease and develop ways to manipulate it to improve health, as we have done with antibiotics and probiotics.

The more diverse, the better

It remains to be defined how exactly the microbiome exerts its health consequences on the host or what makes a healthy microbiome. Experts agree that diversity is a good thing when it comes to gut microbes. The diversity of the travellers we carry appears instrumental in the development of a robust immune system. Association with disease is usually observed when this diversity is reduced or lost. Diet is a major influence on this diversity by dictating the environment in which certain microbes can take up long-term residence within the gut. For example, diets high in saturated fats, which are linked to conditions such as diabetes and heart disease,are also thought to reduce microbial diversity.

How you can influence your microbiome

Here are a few tips to cultivate as much diversity as possible in your gut microbiome:

Increase your fibre intake

Dietary fibre usually comes from plant-based food ingredients that are not broken down by enzymes in the gastrointestinal tract. Most adults should aim to have 25 35 grams of fibre in their diet every day. Fibre supports the growth and diversity of the microbiome and has the added benefits of lowering your risk of heart disease, diabetes and colon cancer.

Eat a wide and seasonal range of fruits, nuts and vegetables

The variety and the types of fibres found within different fruits and vegetables are thought to support different microbial species, thereby contributing to the overall diversity.

Include fermented foods in your diet

Fermented foods such as pickled vegetables, staples of the Burmese dinner tables everywhere, have been shown to be beneficial in improving the diversity of the microbiome and gut function. Other fermented foods include yoghurt, kimchi, soybean-based products such as soy sauce and tempeh.

Avoid artificial sweeteners.

Artificial sweeteners such as saccharin, sucralose or aspartame may be sold as sugar substitutes or are found in sugar-free beverages. These are marketed as a healthier no-calorie alternative to natural sugars, but they have been shown to disrupt the gut microbiome.

Avoid antibiotics and non-essential medicines

Antibiotics may be life-saving when taken for the right reasons. But taken unnecessarily, they indiscriminately wipe out many beneficial microbes, reducing the diversity of the microbiome with effects lasting up to years. Dangerous and pathogenic bacteria may flourish in absence of the microbiome diversity which may result in serious illness. Even non-antibiotic medications may alter gut microbiome by altering the colonic environment so best to play it safe and only take them when necessary.

Dr Thel Khin Hla is a doctor with the Myanmar Oxford Clinical Research Unit in Yangon.

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Lemurs are the world’s most endangered mammals, but planting trees can help save them – The Conversation US

Posted: December 26, 2019 at 11:41 pm

Madagascar, the worlds fourth-largest island, is a global biodiversity hotspot. Andrea Baden

The island of Madagascar off the southeastern coast of Africa hosts at least 12,000 plant species and 700 vertebrate species, 80% to 90% of which are found nowhere else on Earth.

Isolated for the last 88 million years and covering an area approximately the size of the northeastern United States, Madagascar is one of the worlds hottest biodiversity hotspots. Its island-wide species diversity is striking, but its tropical forest biodiversity is truly exceptional.

Sadly, human activities are ravaging tropical forests worldwide. Habitat fragmentation, over-harvesting of wood and other forest products, over-hunting, invasive species, pollution and climate change are depleting many of these forests native species.

Among these threats, climate change receives special attention because of its global reach. But in my research, I have found that in Madagascar it is not the dominant reason for species decline, although of course its an important long-term factor.

As a primatologist and lemur specialist, I study how human pressures affect Madagascars highly diverse and endemic signature species. In two recent studies, colleagues and I have found that in particular, the ruffed lemur an important seed disperser and indicator of rainforest health is being disproportionately impacted by human activities. Importantly, habitat loss is driving ruffed lemurs distributions and genetic health. These findings will be key to helping save them.

Madagascar has lost nearly half (44%) of its forests within the last 60 years, largely due to slash-and-burn agriculture known locally as tavy and charcoal production. Habitat loss and fragmentation runs throughout Madagascars history, and the rates of change are staggering.

This destruction threatens Madagascars biodiversity and its human population. Nearly 50% of the countrys remaining forest is now located within 300 feet (100 meters) of an unforested area. Deforestation, illegal hunting and collection for the pet trade are pushing many species toward the brink of extinction.

In fact, the International Union for Conservation of Nature estimates that 95% of Madagascars lemurs are now threatened, making them the worlds most endangered mammals. Pressure on Madagascars biodiversity has significantly increased over the last decade.

In a newly published study, climate scientist Toni Lyn Morelli, species distribution expert Adam Smith and I worked with 19 other researchers to study how deforestation and climate change will affect two critically endangered ruffed lemur species over the next century. Using combinations of different deforestation and climate change scenarios, we estimate that suitable rainforest habitat could be reduced by as much as 93%.

If left unchecked, deforestation alone could effectively eliminate ruffed lemurs entire eastern rainforest habitat and with it, the animals themselves. In sum, for these lemurs the effects of forest loss will outpace climate change.

But we also found that if current protected areas lose no more forest, climate change and deforestation outside of parks will reduce suitable habitat by only 62%. This means that maintaining and enhancing the integrity of protected areas will be essential for saving Madagascars rainforest habitats.

In a study published in November 2019, my colleagues and I showed that ruffed lemurs depend on habitat cover to survive. We investigated natural and human-caused impediments that prevent the lemurs from spreading across their range, and tracked the movement of their genes as they ranged between habitats and reproduced. This movement, known as gene flow, is important for maintaining genetic variability within populations, allowing lemurs to adapt to their ever-changing environments.

Based on this analysis, we parsed out which landscape variables including rivers, elevation, roads, habitat quality and human population density best explained gene flow in ruffed lemurs. We found that human activity was the best predictor of ruffed lemurs population structure and gene flow. Deforestation alongside human communities was the most significant barrier.

Taken together, these and other lines of evidence show that deforestation poses an imminent threat to conservation on Madagascar. Based on our projections, habitat loss is a more immediate threat to lemurs than climate change, at least in the immediate future.

This matters not only for lemurs, but also for other plants and animals in the areas where lemurs are found. The same is true at the global level: More than one-third (about 36.5%) of Earths plant species are exceedingly rare and disproportionately affected by human use of land. Regions where the most rare species live are experiencing higher levels of human impact.

Scientists have warned that the fate of Madagascars rich natural heritage hangs in the balance. Results from our work suggest that strengthening protected areas and reforestation efforts will help to mitigate this devastation while environmentalists work toward long-term solutions for curbing the runaway greenhouse gas emissions that drive climate change.

Already, nonprofits are working hard toward these goals. A partnership between Dr. Edward E. Louis Jr., founder of Madagascar Biodiversity Partnership and director of Conservation Genetics at Omahas Henry Doorly Zoo, and the Arbor Day Foundations Plant Madagascar project has replanted nearly 3 million trees throughout Kianjavato, one region identified by our study. Members of Centre ValBios reforestation team a nonprofit based just outside of Ranomafana National Park that facilitates our ruffed lemur research are following suit.

At an international conference in Nairobi earlier this year, Madagascars president, Andry Rajoelina, promised to reforest 40,000 hectares (99,000 acres) every year for the next five years the equivalent of 75,000 football fields. This commitment, while encouraging, unfortunately lacks a coherent implementation plan.

Our projections highlight areas of habitat persistence, as well as areas where ruffed lemurs could experience near-complete habitat loss or genetic isolation in the not-so-distant future. Lemurs are an effective indicator of total non-primate community richness in Madagascar, which is another way of saying that protecting lemurs will protect biodiversity. Our results can help pinpoint where to start.

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