Page 223«..1020..222223224225..230240..»

Testosterone replacement therapy – PubMed

Posted: September 16, 2022 at 2:28 am

Background: The aim of testosterone replacement therapy (TRT) is to improve symptoms and signs of testosterone deficiency including decreased libido, erectile dysfunction, depressed mood, anaemia, loss of muscle and bone mass, by increasing serum testosterone levels to physiologic range. TRT has been used in the last 70 years, and overtime, numerous preparations and formulations have been developed to improve pharmacokinetics (PKs) and patient compliance. The routes of delivery approved for use in the Western world include buccal, nasal, subdermal, transdermal and intramuscular (IM).

Objectives: The aim of this narrative review was to describe and compare all available and approved testosterone preparations according to pharmacology, PKs and adverse effects.

Materials and methods: We have performed an extensive PubMed review of the literature on TRT in clinical practice. Contraindications and monitoring of TRT were analyzed by comparing available guidelines released in the last five years. We provide a review of advantages and disadvantages of different modalities of TRT and how to monitor treatment to minimize the risks.

Results: TRT is associated with multiple benefits highly relevant to the patient. However, the recommendations given in different guidelines on TRT are based on data from a limited number of randomized controlled trials (RCTs), as well as non-randomized clinical studies and observational studies. This is the case for the safety of a long-term TRT in late-onset hypogonadism (LOH). No evidence is provided indeed on the effects of TRT on endpoints such as deterioration of heart failure suggesting a cautious approach to T replacement in older men with a history of heart failure.

Conclusion: Clinicians must consider the unique characteristics of each patient and make the necessary adjustments in the management of LOH in order to provide the safest and most beneficial results.

Keywords: androgen deficiency; hormonal therapy; late-onset hypogonadism; testosterone.

Go here to read the rest:
Testosterone replacement therapy - PubMed

Posted in Testosterone Replacement Therapy | Comments Off on Testosterone replacement therapy – PubMed

Risks of testosterone replacement therapy in men – PMC

Posted: September 16, 2022 at 2:28 am

Indian J Urol. 2014 Jan-Mar; 30(1): 27.

Department of Urology, New York Presbyterian Hospital, Weill Cornell Medical College, Starr 900, New York, NY, USA

Department of Urology, New York Presbyterian Hospital, Weill Cornell Medical College, Starr 900, New York, NY, USA

Department of Urology, New York Presbyterian Hospital, Weill Cornell Medical College, Starr 900, New York, NY, USA

Department of Urology, New York Presbyterian Hospital, Weill Cornell Medical College, Starr 900, New York, NY, USA

This is an open-access article distributed under the terms of the Creative Commons Attribution-Noncommercial-Share Alike 3.0 Unported, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Testosterone replacement therapy (TRT) is a widely used treatment for men with symptomatic hypogonadism. The benefits seen with TRT, such as increased libido and energy level, beneficial effects on bone density, strength and muscle as well as cardioprotective effects, have been well-documented. TRT is contraindicated in men with untreated prostate and breast cancer. Men on TRT should be monitored for side-effects such as polycythemia, peripheral edema, cardiac and hepatic dysfunction.

Keywords: Hypogonadism, side-effects, testosterone replacement therapy

Testosterone has many beneficial effects, including increasing bone strength and density, inducing hematopoiesis, driving sexual function and libido, providing a cardioprotective effect and increasing muscle strength.[1] Testosterone levels are known to decline as men age. The Baltimore Longitudinal Study of Aging reported the incidence of hypogonadism as 20% in men over 60 years of age, 30% in men over 70 years and 50% in men over 80 years of age.[2]

As men age, a decline in testicular production of testosterone are seen, as well as an increase in sex hormone binding globulin, both of which act to decrease bioavailable testosterone.[3] With this gradual decline, the beneficial effects of testosterone could be diminished and negatively affect physical and emotional well-being. Testosterone replacement therapy (TRT) is a reasonable treatment option often discussed for men with low testosterone levels and symptoms of hypogonadism. When replaced, many of the positive effects of testosterone are regained.[4] These positive results have led to a drastic increase in the use of testosterone replacement for men with symptomatic hypogonadism, though long-term data is lacking on the safety.

While the beneficial effects of testosterone are rarely disputed and widely publicized, there is a paucity of the literature on the risks of testosterone use. Any man who has a comorbidity that precludes TRT should be informed of all risks. Factors such as exacerbation of prostate cancer, male breast cancer, worsening benign prostatic hyperplasia (BPH), polycythemia and an increased risk of obstructive sleep apnea (OSA) should be considered when administering TRT to a patient. The goal of this review is to highlight the risks and summarize the current literature on safety of TRT.

One of the major risk factors associated with the administration of testosterone supplementation is its effect on the prostate. We know the prostate to be an androgen-dependent gland and conversely, anti-androgen agents can decrease prostate volume in patients with BPH. As the population continues to age, both the incidence of BPH and late-onset male hypogonadism will continue to rise and practitioners will need to be comfortable with counseling men on the effect of TRT on the prostate.[5]

In a landmark randomized, double-blind, placebo-controlled trial of 44 hypogonadal men, Marks et al. showed that TRT for 6 months improves serum androgen levels, but had little effect on prostate tissue androgen levels, tissue biomarkers and/or gene expression.[6] Testosterone supplementation has been shown to increase prostate size by 12%,[7] but lower urinary tract symptoms (LUTS) and urinary retention do not worsen in men on testosterone therapy.[8,9] Similarly, the presence of hypogonadism in 312 men with reportable LUTS was not predictive of worsening International Prostate Symptom Scores (IPSS) or maximal urinary flow rates.[10]

In fact, some series report an improvement in LUTS after 1 year of TRT.[11,12] In the most recent, randomized controlled trial, 52 men were randomly assigned to receive TRT. At 1 year, the 23 men randomized to 250 mg of testosterone enanthate every 4 weeks reported significant improvements in IPSS and maximal urinary flow rates compared with baseline and controls.[12] At no point in this trial did any patient require additional medication or suffer urinary retention.

While older men on testosterone therapy do have an increase in overall prostate size, this increase in size does not differ from the increase in prostatic hypertrophy seen in elderly men not on testosterone therapy.[13] Taken together, TRT does not appear to grossly worsen LUTS and is not contraindicated in men diagnosed with BPH.

It has been over 60 years since Hodges and Huggins described a relationship between serum testosterone levels and prostate cancer progression.[14] Later in 1982, Fowler and Whitmore reported that exogenous testosterone given to patients with metastatic prostate cancer had worse outcomes.[15] Today androgen deprivation therapy remains a cornerstone of treatment for men with advanced prostate cancer, so it is no surprise that TRT is contraindicated in men with diagnosed prostate cancer, as well as high-risk patients, which includes men with first-degree relatives with prostate cancer and African-Americans who have a prostate-specific antigen (PSA) >3 ng/mL.[4,16]

Recently, there has been a paradigm shift whereby TRT usage has increased despite this potential risk. Many longitudinal studies investigating the relationship of endogenous testosterone levels and subsequent risk of prostate cancer failed to find any association.[17] As such, prostate cancer incidence in men on testosterone therapy is similar to men not on testosterone therapy.[18,19] Similarly, in a 3-year prospective trial, the incidence of prostate cancer was similar among men receiving TRT and controls.[20] In a large meta-analysis of 18 prospective studies that included over 3500 men, there was no association between serum androgen levels and the risk of prostate cancer development.[21] Morgentaler et al. proposed a saturation theory where prostate growth becomes insensitive to changes at normal androgen levels due to saturation of the androgen-receptor; however, there is exponential growth at castrate levels.[22] This theory may explain why testosterone does not directly cause prostate cancer,[23] but it has been shown to accelerate the development of prostate cancer.[24,25]

For premalignancy, prostatic intraepithelial neoplasia (PIN) appears to be a risk factor for developing prostate cancer, however this association has been mostly demonstrated for high-grade disease.[26,27] There is a lack of long-term data on the use of TRT in men with PIN. In one study, 12 months after TRT, only one patient out of 20 men with previous PIN developed overt prostate cancer.[28]

For men who have previously undergone definitive treatment for prostate cancer, the usage of TRT is becoming more accepted. TRT does not appear to increase cancer recurrence in hypogonadal men following radical prostatectomy.[29] In the most recent study by Pastuszak et al., the authors retrospectively reviewed a cohort of 103 men who underwent prior radical prostatectomy and were treated with TRT. Despite a significant increase in PSA in men receiving TRT, there were twice as many cancer recurrences in the control group after 36 months of follow-up.[30]

For men with untreated prostate cancer on active surveillance, TRT remains controversial. However, several studies have shown that TRT is not associated with progression of prostate cancer as evidenced by either PSA progression or gleason grade upstaging on repeat biopsy.[31,32] In the most recent study by Morgentaler et al., 13 men with symptomatic hypogonadism and untreated prostate cancer received TRT for a median of 2.5 years and no local prostate cancer progression or distant disease was observed.[33]

While there have been reports of metastatic prostate cancer in older men who are on testosterone therapy,[20] these are mostly anecdotal. Because of this potential risk, practitioners are often reluctant to administer testosterone in patients they believe may be at high risk for prostate cancer or whom they suspect may have the low-grade disease. Men on TRT should have frequent PSA monitoring; any major change in PSA (>1 ng/mL) within the first 3-6 months may reflect the presence of a pre-existing cancer and warrants cessation of therapy.[34] Current guidelines on the frequency of PSA monitoring and role of pre-treatment transrectal ultrasound guided prostate biopsy are lacking.[35] Taken together, there has been consistent rejection that TRT causes development of prostate cancer in men, however administration of TRT for hypogonadal men previously treated for high-risk prostate cancer should be taken with caution.

While there is no known physiologic link of testosterone directly to the development of breast cancer, it has been suggested that high levels of testosterone may lead to increased aromatization to an active derivative of estrogen, which ultimately may stimulate breast tissue receptors and increase the risk of male breast cancer.[36]

The role of testosterone in breast cancer development is yet to be fully understood.[37] Currently, several case reports exist[38] and one retrospective review sites an incidence 11% in 45 men on long term TRT over 10 years.[39] Future prospective studies with longer follow-up will determine if such association between TRT and male breast cancer truly exists.

Testosterone leads to an increase in hemoglobin by as much as 5-7%[1,25] through its effect on the production of erythropoietin, which can dramatically improve symptoms of anemia in men.[40,41]

Studies looking at the occurrence of polycythemia as a negative side-effect in men on testosterone therapy are rare. Despite this, polycythemia is an accepted side-effect of TRT. While testosterone exerts a positive effect in men with baseline anemia, it can lead to polycythemia in over 20% of men treated on TRT.[42] Polycythemia may lead to an increased incidence of vascular events, including stroke, myocardial infarction and deep vein thrombosis with possible pulmonary embolus.[42] While these complications are all possible with polycythemia, their theoretical occurrence has not been demonstrated to occur in men on TRT.[43]

Because of this risk of polycythemia, men undergoing TRT should not only have their complete blood count (CBC) monitored during their therapy, but should also have a baseline CBC drawn before testosterone therapy is initiated. While on testosterone therapy, if the hematocrit (HCT) rises greater than 54%, testosterone therapy should be held until the HCT normalizes. If it is restarted after normalization, it should be performed so at a lower dose with continued careful monitoring.[16]

OSA is a risk associated with TRT in men, but its etiology is not particularly well understood. While some studies suggested that there is no association between OSA and TRT,[44] others have demonstrated that that OSA occurs in men undergoing TRT and when supplementation is stopped, the OSA resolves.[45]

While no clear link has been established, men on TRT should be counseled on the risk of potential OSA when therapy is started. They should be monitored for increased symptoms, such as snoring while sleeping or fatigue. If patients starting TRT already carry a diagnosis of OSA, physicians should counsel these patients that TRT may worsen their symptoms. While, OSA remains to be a relative contraindication to initiation of TRT, more research needs to be completed on this association in order to gain a better understanding of its etiology if there is one at all.

The systemic effects of TRT may be exacerbated in men with limited cardiovascular reserve. Previous dogma held that androgens could have atherogenic potential. In a randomized, placebo-controlled trial, Basaria et al. reported an increased risk of cardiovascular events in men randomized to TRT; however, this small cohort had a high prevalence of chronic disease.[46] Today, current literature suggests that TRT has a neutral to beneficial effect on reported cardiovascular events.[47,48] Because some men may have a limited cardiovascular capacity, clinicians prescribing TRT must be cautious with respect to its ability to cause edema.[49] Until date, no longitudinal studies examine the impact of TRT on the cardiovascular system, however some studies suggest that TRT may serve as an adjunct rehabilitative therapy in patients with congestive heart failure (CHF).[50,51,52]

While topical testosterone delivery systems avoid first-pass hepatic metabolism, there remains concern regarding TRT in patients with chronic liver disease. The majority of reports of liver toxicity and jaundice are limited to orally-administered alkylated forms of testosterone.[53] However, a small prospective study representing a cohort of cirrhotic patients demonstrated topical gels to be safe and efficacious.[54] It has also been shown that TRT may improve hepatic function in patients with end-stage liver disease.[55] Because of these mixed results, clinicians should be aware of the possible risks associated with TRT in men with hepatic dysfunction and counsel these men accordingly.

Because TRT is known to cause water retention, caution with testosterone use in patients with chronic renal insufficiency is often advised. In patients with end-stage renal disease (ESRD) on dialysis, fluid shifts are less of a concern in patients on TRT since the fluid retention can be handled with dialysis. While polycythemia may be an adverse side-effect, this is a potential benefit in patients with chronic renal failure and anemia.[56] Furthermore, the half-life of testosterone elimination after withdrawal appears similar between patients with and without ESRD.[56] Few studies have assessed the effects of TRT in patients with chronic kidney disease; however, small studies have suggested that TRT has anabolic effects among ESRD patients, even in the absence of hypogonadism. Aside from frequent monitoring of congestive symptoms and peripheral edema in this select population, TRT appears to be safe for patients with chronic kidney disease without dose adjustment.[57]

When testosterone reaches supra-therapeutic levels, aggressive behavior and increased rates of suicide among adolescent users have been reported;[58] however, no study has documented a negative impact on cognition in men patients receiving TRT. In fact, studies have shown that testosterone replacement to eugonadal levels may improve or stabilize cognitive function.[59,60,61] Lower levels of testosterone have a negative impact on spatial and verbal abilities, as well as cognitive function; therefore, it is no surprise that normalizing testosterone levels results in cognitive improvements.[62,63]

With exogenous testosterone supplementation, the pulsatile release of gonadotropin-releasing hormone is blunted and the release of follicle-stimulating hormone and luteinizing hormone are depressed. As such, a decrease in spermatogenesis is seen.[64] While this effect may not be of importance to many men who have completed their families, physicians prescribing TRT need to be aware.

When serum levels of testosterone are increased, a concurrent increase in the secretion of sebum occurs, which can lead to acne. Despite this known association, this effect is typically minimal.[65] Case reports regarding testosterone supplementation leading to changes in hair patterns have been documented; however no randomized, placebo-controlled trials exist. Various topical and intramuscular injectable forms of testosterone are associated with a variety of skin reactions, mainly erythema and pruritus in up to 60% of users.[20]

TRT is associated with external, physical changes in the men. Exogenous testosterone is known to cause an imbalance in the hypothalamic-pituitary axis. As such, testosterone can be converted to estrogen by aromatization. Excess estrogens may lead to gynecomastia and/or breast pain, both of which may be seen in 10-25% of men on TRT.[66] The ratio of estradiol to androgens is the key factor in the development of gynecomastia rather than absolute increases in androgens themselves.[66] Clinicians must be aware of non-iatrogenic causes of gynecomastia and therefore the appropriate work-up should be sought out to rule out other pathology, especially if there is any breast tenderness or unilateral gynecomastia. Only a few case-reports describe a relationship between male breast cancer and TRT.[38,39]

In addition, excess estrogens may cause an increase in visceral obesity. With vigilant monitoring of serum estrogen levels, TRT has been shown to promote weight loss.[67] Well-known to many prescribers of TRT is a risk of water retention and/or edema. The etiology of this association remains unclear to date.[68] The degree of retention is generally mild. As mentioned above, men on TRT with a history of CHF should follow closely[69].

TRT has numerous benefits that can great enhance a patient's quality-of-life. Before prescribing TRT, one must be conscientious of its adverse effects. Data on the safety of TRT specific to our aging population is not currently available; however TRT has been linked to prostate cancer, BPH, polycythemia and OSA. A full assessment of the morbidity of TRT would require a large-scale, randomized, controlled trial. To date, physicians remain in a quandary about the best approach to care for men with symptoms of hypogonadism. TRT, when given to appropriately selected patients with vigilant monitoring as outlined in this review and in , can bring improvements in quality-of-life, energy level, libido, muscle mass, cognition and bone density.

Potential risks of TRT and associated monitoring strategies

Source of Support: Nil

Conflict of Interest: None declared.

Go here to see the original:
Risks of testosterone replacement therapy in men - PMC

Posted in Testosterone Replacement Therapy | Comments Off on Risks of testosterone replacement therapy in men – PMC

The Global Testosterone Replacement Therapy Market is expected to grow by $ 402.87 mn during 2022-2026, accelerating at a CAGR of 3.1% during the…

Posted: September 16, 2022 at 2:28 am

ReportLinker

Global Testosterone Replacement Therapy Market 2022-2026 The analyst has been monitoring the testosterone replacement therapy market and it is poised to grow by $ 402. 87 mn during 2022-2026, accelerating at a CAGR of 3.

New York, Sept. 13, 2022 (GLOBE NEWSWIRE) -- Reportlinker.com announces the release of the report "Global Testosterone Replacement Therapy Market 2022-2026" - https://www.reportlinker.com/p04046949/?utm_source=GNW 1% during the forecast period. Our report on the testosterone replacement therapy market provides a holistic analysis, market size and forecast, trends, growth drivers, and challenges, as well as vendor analysis covering around 25 vendors.The report offers an up-to-date analysis of the current global market scenario, the latest trends and drivers, and the overall market environment. The market is driven by initiatives to increase awareness about hypogonadism among population, rise in chronic diseases, and untapped potential in developing countries.The testosterone replacement therapy market analysis includes the product segment and geographic landscape.

The testosterone replacement therapy market is segmented as below:By Product Injectables Topicals Others

By Geographic North America Europe Asia Rest of World (ROW)

This study identifies the rise in novel therapeutic approaches as one of the prime reasons driving the testosterone replacement therapy market growth during the next few years. Also, patient assistance programs and the development of new therapies will lead to sizable demand in the market.

The analyst presents a detailed picture of the market by the way of study, synthesis, and summation of data from multiple sources by an analysis of key parameters. Our report on the testosterone replacement therapy market covers the following areas: Testosterone replacement therapy market sizing Testosterone replacement therapy market forecast Testosterone replacement therapy market industry analysis

This robust vendor analysis is designed to help clients improve their market position, and in line with this, this report provides a detailed analysis of several leading testosterone replacement therapy market vendors that include AbbVie Inc., Acerus Pharmaceuticals Corp., Acrux Ltd., Actiza Pharmaceutical Pvt. Ltd., Antares Pharma Inc., Aytu BioPharma Inc., Bausch Health Co. Inc., Bayer AG, BIOTE MEDICAL LLC, Cipla Ltd., Clarus Therapeutics Inc., Eli Lilly and Co., Endo International Plc, Novartis AG, Pfizer Inc., Sun Pharmaceutical Industries Ltd., Teva Pharmaceutical Industries Ltd., The Simple Pharma Co. UK Ltd., Upsher Smith Laboratories LLC, and Viatris Inc. Also, the testosterone replacement therapy market analysis report includes information on upcoming trends and challenges that will influence market growth. This is to help companies strategize and leverage all forthcoming growth opportunities.The study was conducted using an objective combination of primary and secondary information including inputs from key participants in the industry. The report contains a comprehensive market and vendor landscape in addition to an analysis of the key vendors.

The analyst presents a detailed picture of the market by the way of study, synthesis, and summation of data from multiple sources by an analysis of key parameters such as profit, pricing, competition, and promotions. It presents various market facets by identifying the key industry influencers. The data presented is comprehensive, reliable, and a result of extensive research - both primary and secondary. Technavios market research reports provide a complete competitive landscape and an in-depth vendor selection methodology and analysis using qualitative and quantitative research to forecast accurate market growth.Read the full report: https://www.reportlinker.com/p04046949/?utm_source=GNW

About ReportlinkerReportLinker is an award-winning market research solution. Reportlinker finds and organizes the latest industry data so you get all the market research you need - instantly, in one place.

__________________________

Story continues

Read more:
The Global Testosterone Replacement Therapy Market is expected to grow by $ 402.87 mn during 2022-2026, accelerating at a CAGR of 3.1% during the...

Posted in Testosterone Replacement Therapy | Comments Off on The Global Testosterone Replacement Therapy Market is expected to grow by $ 402.87 mn during 2022-2026, accelerating at a CAGR of 3.1% during the…

Testosterone injections most likely led to a very severe stroke – The Independent

Posted: September 16, 2022 at 2:28 am

FROM NORTH AMERICA SYNDICATE, 300 W 57th STREET, 15th FLOOR, NEW YORK, NY 10019

CUSTOMER SERVICE: (800) 708-7311 EXT. 236

TO YOUR GOOD HEALTH #12345_20220929

FOR RELEASE WEEK OF SEPT. 26, 2022 (COL. 4)

BYLINE: By Keith Roach, M.D.

TITLE: Testosterone injections most likely led to a very severe stroke

---

DEAR DR. ROACH: My 75-year-old husband was frustrated with not being able to retain an erection. He talked to his doctor about it, and she prescribed 200 mg of testosterone cypionate, which he would inject into his bottom once a week. He did this for four months, and then had a severe bilateral stroke (as in, he does not know where he is, what happened to him, cannot read or write, cannot walk, etc.).

After spending two weeks in the ICU, he went to a rehabilitation hospital for three weeks. The hematologist there told me his hemoglobin level was up to 20, and there was no reason a 75-year-old should have been prescribed testosterone when it can elevate his hemoglobin so much. I looked at my husband's labs over the last three years, and his hemoglobin was never above 15. Of course, I had no idea testosterone would elevate hemoglobin, or that it should not be prescribed to a 75-year-old.

What are the normal protocols for testosterone with older men? Could his testosterone injections have led to his stroke? -- D.H.

ANSWER: I am very sorry to hear about your husband.

Testosterone replacement therapy is commonly prescribed to men in their 70s and 80s. Elevations of the hemoglobin levels are certainly well-described, but levels above normal only happen about 1% of the time. Experts recommend checking a blood count to look for these elevations three to six months after starting treatment. Testosterone should be stopped if the hemoglobin level is above normal.

Sometimes, there are other causes for the hemoglobin to go up, but a rise that high, when he had never had it before, makes it seem very likely to me that the testosterone was the cause. A hemoglobin level that high, from any cause, is a risk for stroke and heart attack. It is very possible the testosterone prescription led directly to the stroke.

I am publishing this in the column so that men who are taking testosterone know they should be periodically tested for this unusual complication.

DEAR DR. ROACH: I had carpal tunnel surgery two years ago. I now have trigger fingers in my index and ring fingers. I had cortisone injections but that didn't cure it. I, at one point, was not able to open my fingers. Now, my fingers are really stiff, and I can't bend them. When they get down too far, they lock, but usually, they're so stiff I can't bend them. Surgery was suggested. I'm hesitant, because I'm wondering if this will get better on its own with exercises. -- J.T.

ANSWER: Trigger finger is caused by the tendon getting stuck inside one of the pulleys of the hand. To the best of my knowledge, carpal tunnel surgery doesn't predispose to trigger finger, but there are some conditions that put people at risk for both conditions. Initial treatment of trigger finger is conservative, with splinting and anti-inflammatory drugs. If that doesn't work, injection of cortisone by a hand surgeon is usually successful.

Most of the hand surgeons I know will try injection three times before recommending surgery. People who have not gotten better with conservative treatment and injection generally do not get better on their own; though, a few people will. Unfortunately, postponing surgery too long can lead to the finger getting a contracture, where it will not straighten at all. It's best to have surgery before this complication occurs.

* * *

Dr. Roach regrets that he is unable to answer individual letters, but will incorporate them in the column whenever possible. Readers may email questions to ToYourGoodHealth@med.cornell.edu or send mail to 628 Virginia Dr., Orlando, FL 32803.

(c) 2022 North America Syndicate Inc.

All Rights Reserved

Visit link:
Testosterone injections most likely led to a very severe stroke - The Independent

Posted in Testosterone Replacement Therapy | Comments Off on Testosterone injections most likely led to a very severe stroke – The Independent

Best DHEA Supplement (2022 Updated) – The Island Now

Posted: September 16, 2022 at 2:28 am

Are you in your late 30s or beyond concerned about age spots, graying hair, and a sagging body? Or have trouble sleeping at night and face a harder time achieving orgasm? These are typical signs of low DHEA levels in your body.

What is Dehydroepiandrosterone (DHEA)? It is a parent sex hormone that your body naturally produces under stress. The production level of this hormone dips as you age. Since DHEA is converted into other sex hormones like testosterone and estrogen, there is a decline in their concentration as well.

Not only that but when your DHEA levels drop, so does your immune system. For this reason alone, maintaining a natural balance of sex hormones becomes imperative as we age.

Try the best DHEA supplements to get the energy, sex drive, and appearance you want without relying on harmful pharmaceuticals or other ineffective over-the-counter supplements.

Natrol is a leading brand in the health and wellness supplement niche, offering a range of supplements to improve sleep, anxiety, stress, and overall health. The brand has garnered a positive reputation due to its natural and clean supplement formulas.

It is an American brand that Elliot Balbert founded in 1980 with a vision of improving human wellness worldwide. Although the initial target of the brand was the cosmetic industry, the company eventually transitioned into a nutraceuticals (use of food ingredients for medicinal benefits) brand.

Over years of hard work, Natrol has developed into one of the top-notch supplement brands providing high-grade sleep products to the masses. Moreover, Natrol does not compromise on the quality and purity of its supplements.

Therefore, all of their products are USP-certified and non-GMO. Mainly, the brand has achieved an A rating from the Natural Products Association, adding to its reputation and supplements.

Furthermore, Natrol is a prominent award-winning supplement manufacturer, snatching Better Nutritions Best of Supplements Award 2017, and Delicious Living Award, among many others. The company has over 51.3K followers on Facebook, while 18.1K people follow them on Instagram, distinguishing its worth in the supplemental market.

Available In Different Strengths: The Natrol DHEA Mood & Stress supplement comes in various dosages. Whether you are starting your journey with DHEA or want to build your tolerance, Natrol provides options for all. These all-natural and safe DHEA supplements come in 10 mg, 25 mg, and 50 mg dosages. Apart from that, Natrol lets you choose between capsules and tablets, which consumers highly rate.

Ingredients & No Allergens: DHEA Mood & Stress contains all-natural ingredients like calcium and DHEA. It contains silicone dioxide, magnesium stearate, stearic acid, cellulose gum, gum arabic, microcrystalline cellulose, and maltodextrin. The supplement does not have synthetic dyes, preservatives, GMOs, artificial sweeteners, or flavors for the allergen profile.

Health Benefits: This supplement is 100% vegetarian and offers several health benefits with constant use. DHEA in the blend supports balanced hormone levels and promotes healthy mood, lively aging, and overall health. Most importantly, this supplement is not suitable for individuals under the age of 18. Also, if you are pregnant or nursing, do not consume it.

Recommended Dosage: According to the official website, you should take one tablet/capsule of this supplement once daily after having your meal.

=> Click here to visit the official website of Natrol

Life Extension is a brand in the natural supplement industry that manufactures supplements backed with scientifically researched ingredients. This health and wellness brand has been functioning for over 40 years since the 1980s.

With a broad catalog, Life Extension offers natural and nutritious supplements to improve brain function, energy, weight loss, and more. Everyone is sure to find a healthy and natural supplement for their personal needs on their convenient online store.

Life Extension has paved its way to outspread its vision of nutrition all around the globe. Based in Fort Lauderdale, FL, Life Extension is a US brand that manufactures high-quality supplements in cGMP-approved facilities.

With a simple mission to find new ways and empower people to live healthier and richer life, Life Extension strives to produce non-GMO supplements. To ensure the quality and potency of their supplements, the brand conducts experiments on the best ingredients in their in-house labs.

Life Extension has over 48K followers on Instagram and 344K on Facebook. With such a predominant social media impact, Life Extension is surely a brand many love. Life Extension has multiple options for first-time buyers as they have a team of personalized wellness specialists and magazine subscriptions to help you out.

Gluten-Free And Non-GMO: The experts at Life Extension scoured through the latest research and designed the formula for this DHEA supplement. The product contains DHEA as the main ingredient, while some other elements in the blend include cellulose, silica, gelatin, and microcrystalline. The product is non-GMO, gluten-free, and organic, offering the best pick for picky consumers. However, 15 mg, 25 mg, and 50 mg capsules contain gelatin obtained from animals. Thats why they are not suitable for vegans. Only 100 mg DHEA supplement by Life Extension comes in vegetarian capsules.

Available In 4 Strengths: Life Extension has formulated this supplement in capsule and tablet forms. Both are available in four potencies, with 15 mg, 25 mg, 50 mg, and 100 mg DHEA content per serving.

Dosage And Use: The brand recommends taking only one to three capsules in the morning. It strongly suggests that a physician should determine the exact number of servings after blood testing. Moreover, DHEA serum blood tests are recommended three to six weeks after starting DHEA replacement therapy.

Health Goals: The benefits of DHEA supplements by Life Extension include balancing youthful levels of bodily hormones and maintaining healthy sexual functions. Besides, it encourages healthy immune function and cardiovascular health.

=> Click here to visit the official website of Life Extension

PureFormulas is an online brand that manufactures and sells a wide variety of top-notch supplements from third-party brands. With a significant inventory of beauty, pet, and health supplements at affordable prices, PureFormulas is one of the best brands, according to TrustPilot.

To top it off, PureFormulas has also won the Bizrate Circle of Excellence Award, highlighting its superior retail experience. PureFormulas amazing customer support, free delivery, and accolades have captured the hearts of thousands of loyal customers and have a 10K Instagram following.

Established in 2007, PureFormulas is one of the brands having a successful history of customer satisfaction with its pure formulations. It is a Miami-based supplement brand that Jose Prendes founded.

Before he laid the foundation of PureFormulas, Prendes discovered VetAmerica, a leading store of pet supplies. Thanks to his commitment and conscientiousness, the Greater Miami Chamber of Commerce named Prendes as the CEO of the Year.

The brand operates with a mission to help people live a pure, happy life, PureFormulas is dedicated to earning your trust through its products and customer support. It is the go-to store for individuals to buy clean, third-party lab-tested products manufactured and wrapped in cGMP-approved facilities.

Quality Ingredients: Daily DHEA by PureFormulas contain 25 mg of pure DHEA. The strength is best suited for individuals who are initiating DHEA replacement therapy as this dose is tolerable by most individuals. Some other ingredients include microcrystalline cellulose, cellulose (capsule), and I-leucine. Since the company uses cellulose for its capsules instead of gelatin, it is best for vegans and non-vegetarians. Moreover, the supplement is GMP certified, non-GMO, and gluten-free.

Dosage: PureFormulas recommends taking one vegetarian capsule every day with your meal. If you have certain health conditions, you are pregnant, nursing, or under 18, you should not use this supplement and seek physician consultation.

Free Shipping: For individuals in the United States, PureFormulas offers standard free shipping on orders above $20. The company also offers an auto-ship program which provides you 10% off on specific products at regular orders.

Return Policy: You can use the hassle-free return policy of PureFormulas, according to which you can return your parcel within 30 days. This only applies to products that are unopened and unused.

=> Click here to visit the official website of PureFormulas

DHEA supplements are a boon for people who want to escape aging skin, bone, and cardiovascular problems and want to lead an energetic life.

Despite the effective results of using this product, there is no doubt that many users do not find it easy to pick up the best version. Most buyers are clueless about the difference between certain varieties, ingredients, etc.

This can be attributed to the lack of proper information regarding these natural hormone boosters available on the market. Here, we have tried to address all your queries with proper facts and figures in our dehydroepiandrosterone review and buying guide.

To have the best list of DHEA products, we followed strict evaluation criteria to probe other supplements on the market. Our team invested several hours in researching the DHEA market high and low.

With a primary goal to find out the safest and purest formula, we picked all the supplements brands offering DHEA supplements. Later, we looked into the company details, store policies, and health benefits of all the products on our list. We unhandled all the ineffective products and only picked the ones with the right formulas, dosage, and benefits.

The assessment criteria we designed for ranking the best DHEA supplements encompassed several factors. We check each product on our list against different benchmarks to ensure our just evaluation.

Brand Reputation: Brand reputation is one of the primary factors that helped our team to pick the best products. Primarily, we delved into the information of the supplement manufacturer offering DHEA products to learn if they opt for safe manufacturing.

For unbiased evaluation, we chose only brands with a prominent name in the industry with a wide portfolio of supplements. Additionally, we kept all the brands at arms length whose reputation was questionable. Hence, all the DHEA supplements on our list are from highly esteemed supplement manufacturers in the USA market.

Natural Ingredients: Prescription medications are great for instant benefits, but their effects are usually short-term. Contrary to that, natural health supplements offer long-term effects with constant use and often have minimal to zero side effects.

Therefore, our priority was to pick the DHEA supplements that contain a blend of natural and organic ingredients without unnecessary binders and fillers. Furthermore, we searched each ingredient in every product to know whether the company was using science-backed ingredients in the formula.

Safety: When there is low DHEA in the body, your immune systems ability to fight off the harmful chemicals also drops. Therefore, we confirmed the safety of all the ingredients and final products before referring the supplements to our readers.

Customer Reviews: DHEA supplements that received rave reviews from customers were our favorite. For this purpose, we visited official company websites and different forums to learn the pros and cons of each supplement. Hence, we preferred the products that were reviewed by hundreds of customers with a positive rating.

DHEA is great for fixing the natural declines in the concentrations of several human sex hormones. While DHEA supplements are great for boosting libido, they offer many health benefits that one cannot enjoy with growing age.

Similar to other health-boosting supplements on the market, hundreds of manufacturers are selling DHEA products. With that fact, the chances of buying risky and counterfeit DHEA supplements increase. Therefore, checking several important factors in a DHA supplement can be wise.

The first and foremost factor you should consider is what your body is trying to convey. Your body is the first to show symptoms in multiple ways, even before you realize something is wrong with you.

Generally, sexual function in the human body is of the least important as it is one of those functions you can live without. That is also why many forms of sexual enhancement have less than significant support from scientific studies.

When your body is under stress, the sexual system and related functions are one of the primary systems that collapse. Your bodys adrenal glands produce DHEA, which is the same gland that makes and secretes cortisol.

Both of these hormones are released as a response to your stress, increasing stress levels in the body. Therefore, sexual dysfunction is a common symptom obvious in people who handle high-stress levels. So, when you are stressed, your body will save energy and nutrients to build up stamina and protect you from the harmful effects of stress.

Several studies have concluded the positive health benefits of DHEA with doses of up to 200 mg. Therefore, the supplements that deliver up to 200 mg of DHEA to your system are considered safe.

Supplement manufacturers offer DHEA pills in different doses, but you should stick to lower doses (25 mg, 50 mg) only as a beginner. For instance, the featured supplements contain 25 mg to 100 mg of DHEA per capsule.

What we suggest is you should prefer DHEA supplements with 50 mg. Mainly, 50 mg DHEA capsules offer a strong enough dose to significantly change your DHEA levels with just one capsule per day.

However, most individuals will have to try and test these supplements by gradually increasing doses to find the best therapeutic amount. Another vital factor that can affect the DHEA dose is your age.

An important factor you must consider before purchasing any supplement with a stronger dose is the size of the capsules. Maximum strength DHEA supplements often come in large capsules and are difficult to swallow.

Also, if you intend to consume more products in your healthcare regimen, choosing such supplement with a smaller size is best. The good thing with safe and effective DHEA supplements is that the capsule size will be small enough if you choose a 50 mg dosage.

On the market, hundreds of DHEA supplements contain additional ingredients like minerals and vitamins. Many supplement manufacturers add them to the blend to boost the efficacy of the main ingredient.

However, it cannot always work out well as you might have insufficient DHEA dose to feel the effects. Moreover, the additional ingredients will be quite low in concentrations to cover your daily requirements.

You will probably have to invest in other products to get the ideal amount of both primary and secondary ingredients. Thats why we suggest you stick with the pure DHEA supplements only and consume other products for the health benefits you want.

DHEA is a shorthand for Dehydroepiandrosterone, a hormone produced by your adrenal glands. It acts as a precursor in synthesizing and releasing crucial male and female sex hormones in the human body.

For instance, it plays a great role in forming testosterone and estrogen. Both are vital hormones that boost the development of masculine and feminine secondary biological features. Not only that, but they also hold significant importance for your general health and well-being.

If you have excessive estrogen-like endocrine disruptors, your body will be disrupted by hormonal disruption, leading to reproductive weakening. Since testosterone and estrogen levels differ in both male and female bodies, their symptoms will differ.

Individuals with Y chromosomes will face many debilitating symptoms due to low testosterone production. This includes irrational mood swings, sudden weight gain, fatigue or low stamina, frequent memory failure, and underdeveloped muscle tone. Additionally, they might have underdeveloped testicles, low libido, erectile dysfunction, and joint/bone tissue loss.

Likewise, individuals who lack a Y chromosome will witness unwanted symptoms in response to low estrogen levels in the body. Some common signs are headaches, mental health problems, fatigue, mood swings, hot flashes, and trouble concentrating. Furthermore, many women have other symptoms like breast tenderness, irregular or absent menstrual cycle, lack of vaginal lubrication, and urinary tract infections (UTIs).

Other health effects of low DHEA levels that are common to both males and females are important, just like the regulation of sex hormones. DHEA synchronizes your energy levels, mental health, bone health, metabolic health, immune function, stress resistance, skin health, and cognitive and memory health.

Many double-blind, placebo-controlled research trials have shown the proven benefits that the human body can get from DHEA supplementation. Since DHEA levels dip with age, older men and postmenopausal women can greatly benefit by adding DHEA supplements into their regimens.

The research on DHEA supplementation mostly focuses on retrieving youthful health benefits as we age. Generally, DHEA has plenty of health benefits as it is involved in the complex process of hormonal production and balancing.

Science has proved that DHEA is good for the bones of postmenopausal women. If you are a gym-goer, adding DHEA supplements into your weight training routine can help to boost muscle strength.

Since its not only the muscle strength that counts for a youthful body, DHEA also plays a helpful role in shaping your body composition. While DHEA is thought to help you gain muscle strength, it also increases the fat-burning process.

One of the worst features of aging is the loss of sexual stamina and attraction, resulting in a lack of physical intimacy. In such situations, people can even try anti-aging products . However, sexual intercourse can help release the love hormone, oxytocin. So, as you age, you are not sexually interested in your partner, which keeps you from enjoying the benefits of oxytocin. No worries anymore; DHEA can help with that as it supports libido and sexual interest in both sexes.

Besides, DHEA can benefit adrenal insufficiency, healthy arteries, healthy glucose metabolism, youthful skin, optimal brain health, healthy inflammatory response, and more.

Scientific society considers DHEA an anabolic steroid. However, DHEA does not produce the typical results of anabolic steroids. While DHEA boosts testosterone levels, strength, and muscle mass, compared to steroids, it does so in much lower amounts. Therefore, DHEA has a nominal effect on your testosterone levels, and studies have not proven its benefits in boosting muscle size, strength or endurance yet.

Dosage is the primary factor that decides the effectiveness of DHEA supplementation. Some additional factors affecting its effectiveness are how consistently and for which health goals you are consuming it.

Still, the timeline for visible results from DHEA supplementation varies from a few weeks to a few months. Furthermore, not many scientific studies have analyzed the long-term effects of DHEA. Therefore, you should plan your DHEA consumption anywhere from a few months to a max of one year.

In the USA, DHEA was once banned for over-the-counter sales in 1985. Since then, all the DHEA supplements have been approved for retail distribution and are not forbidden in the United States. However, the World Anti-Doping Agency (WADA) has banned DHEA as it can alter user testosterone levels.

DHEA supplements are no longer just for people suffering from a low testosterone level or for postmenopausal women who want to reverse the effects of menopause. If you feel your health is declining and you know it has something to do with aging, DHEA supplements can be the best solution.

To help you ease your legwork, we have found the topmost DHEA supplement brands for you. Natrol, Life Extension, and PureFormulas offer effective DHEA supplements with the benefits of natural ingredients.

These products offer a safe, pure, natural alternative that can give your body all the hormones it needs to stay healthy and young, including DHEA and growth hormone. These are not aphrodisiac drugs, so there are no side effects or interactions with other drugs.

Multiplex Content Recommendation - 1

Go here to read the rest:
Best DHEA Supplement (2022 Updated) - The Island Now

Posted in Testosterone Replacement Therapy | Comments Off on Best DHEA Supplement (2022 Updated) – The Island Now

Scientists Use Stem Cells to Create Synthetic Mouse Embryos

Posted: September 16, 2022 at 2:26 am

Scientists have created synthetic mouse embryos from stem cells without a dads sperm or a moms egg or womb.

The lab-created embryos mirror a natural mouse up to 8 days after fertilization, containing the same structures, including one like a beating heart.

In the near term, researchers hope to use these so-called embryoids to better understand early stages of development and study mechanisms behind disease without the need for as many lab animals. The feat could also lay the foundation for creating synthetic human embryos for research in the future.

We are undoubtedly facing a new technological revolution, still very inefficient but with enormous potential, said Llus Montoliu, a research professor at the National Biotechnology Centre in Spain who is not part of the research. It is reminiscent of such spectacular scientific advances as the birth of Dolly the sheep and others.

A study published Thursday in the journal Nature, by Magdalena Zernicka-Goetz at the California Institute of Technology and her colleagues, was the latest to describe the synthetic mouse embryos. A similar study, by Jacob Hanna at the Weizmann Institute of Science in Israel and his colleagues, was published earlier this month in the journal Cell. Hanna was also a coauthor on the Nature paper.

Zernicka-Goetz, an expert in stem cell biology, said one reason to study the early stages of development is to get more insight into why the majority of human pregnancies are lost at an early stage and embryos created for in vitro fertilization fail to implant and develop in up to 70% of cases. Studying natural development is difficult for many reasons, she said, including the fact that very few human embryos are donated for research and scientists face ethical constraints.

Building embryo models is an alternative way to study these issues.

To create the synthetic embryos, or embryoids, described in the Nature paper, scientists combined embryonic stem cells and two other types of stem cells all from mice. They did this in the lab, using a particular type of dish that allowed the three types of cells to come together. While the embryoids they created werent all perfect, Zernicka-Goetz said, the best ones were indistinguishable from natural mouse embryos. Besides the heart-like structure, they also develop head-like structures.

This is really the first model that allows you to study brain development in the context of the whole developing mouse embryo, she said.

The roots of this work go back decades, and both Zernicka-Goetz and Hanna said their groups were working on this line of research for many years. Zernicka-Goetz said her group submitted its study to Nature in November.

Scientists said next steps include trying to coax the synthetic mouse embryos to develop past 8 days with the eventual goal of getting them to term, which is 20 days for a mouse.

At this point, they struggle to go past the 8 1/2-day mark, said Gianluca Amadei, a coauthor on the Nature paper based at the University of Cambridge. We think that we will be able to get them over the hump, so to speak, so they can continue developing.

The scientists expect that after about 11 days of development the embryo will fail without a placenta, but they hope researchers can someday also find a way to create a synthetic placenta. At this point, they dont know if they will be able to get the synthetic embryos all the way to term without a mouse womb.

Researchers said they dont see creating human versions of these synthetic embryos soon but do see it happening in time. Hanna called it the next obvious thing.

Other scientists have already used human stem cells to create a blastoid, a structure mimicking a pre-embryo, that can serve as a research alternative to a real one.

Such work is subject to ethical concerns. For decades, a 14-day rule on growing embryos in the lab growing human embryos in the lab has guided researchers. Last year, the International Society for Stem Cell Research recommended relaxing the rule under limited circumstances.

Scientists stress that growing a baby from a synthetic human embryo is neither possible nor under consideration.

Perspective on this report is important since, without it, the headline that a mammalian embryo has been built in vitro can lead to the thought that the same can be done with humans soon, said developmental biologist Alfonso Martinez Arias of the Universitat Pompeu Fabra in Spain, whose group has developed alternative stem cell based models of animal development.

In the future, similar experiments will be done with human cells and that, at some point, will yield similar results, he said. This should encourage considerations of the ethics and societal impact of these experiments before they happen.

(AP)

See more here:
Scientists Use Stem Cells to Create Synthetic Mouse Embryos

Posted in California Stem Cells | Comments Off on Scientists Use Stem Cells to Create Synthetic Mouse Embryos

ISCT: California stem cell ruling is flawed and has inserted regulatory uncertainty into the CGT market – BioPharma-Reporter.com

Posted: September 16, 2022 at 2:26 am

The decision will have widespread implications for the cell and gene therapy (CGT) sector as well as for patient safety, says theInternational Society for Cell & Gene Therapy (ISCT).

The judgement is flawed, according to the industry organization. It said the decision has inserted regulatory uncertainty into the CGT market, creating opportunities for clinics offering purported treatments that are scientifically unproven and potentially dangerous to patients:

The ruling reinforces the imperative market need for informative resources that establish scientific consensus, standards, and best practices, commentedISCT president, Jacques Galipeau.

Late August saw a US federal judge, Jesus G Bernal of the Central District of California, issue a landmark decision siding with the California Stem Cell Treatment Center (CSCTC) and Cell Surgical Network Corporation, in a lawsuit brought by the US Food and Drug Administration (FDA).

The FDA took the legal action against CSCTC in 2018 to assert regulatory authority over stem cell therapies. The agencys position is that taking a patients fat and digesting it with an enzyme to isolate the stem cell fraction creates a biologic drug that requires full FDA approval.

The court rejected this argument.Instead, the judge accepted CSCTCs position that its treatments qualified for an exception from FDA regulations, in part because they were tantamount to surgical procedures.

The court wrote: "The adipose tissue the defendants remove from patients clearly consists of human cells. And whatever is injected back into patients as part of [the] defendants' SVF surgical procedure and expanded MSC surgical procedure certainly contains such cells."

Reacting to the decision, Dr Elliott Lander, co-founder of CSCTC, said the centre appreciated the court's clear and unequivocal ruling, which affirms what we have been saying for 12 years: that our innovative surgical approach to personal cell therapy is safe and legal.

However, Professor Paul Knoepfler, whois based at the UC Davis Department of Cell Biology and Human Anatomy, disagrees. He claims the judge wrongly concluded that stromal vascular fraction (SVF) cells are not changed by the procedure to isolate them.

And the ISCT also believes that scientific inaccuracies in the ruling may have impacted the judges decision.

Its committee on the ethics of cell and gene therapy identified several examples of statements that are problematic and unfounded:

Firstly, they found that the ruling made several statements concerning SVF that are both inaccurate and unsupported by current scientific knowledge. "The ruling mistakenly claims the production of SVF is essentially equivalent to surgery and mischaracterizes SVF as a naturally occurring, circulating, unaltered biological entity that is simply relocated from adipose tissue to other diseased parts of the body by surgical means."

Secondly, the committee argues that the court's assertion that the clinical networks use FDA-authorized devices to produce autologous stem cell-based interventions does not consider that the devices in question may not have been authorized by the FDA, or authorized for other purposes, and have not been designed to produce stem cell therapies.

They also found that the statement that culture-expanded mesenchymal stem cells (MSCs) should not be regulated as drugs conflicts with scientific evidence. "This statement opens the door to unchecked administration of poorly characterized and non-standardized cell preparations with unknown safety and efficacy and may pose significant risks to patients."

Laertis Ikonomou, chair of the ISCT committee on the CGT ethics, said: "ISCT has worked for many years now, alongside the FDA and other regulators across the globe, to ensure all those offering cell and gene, and advanced therapies, operate within established clinical regulatory frameworks to uphold scientific standards and ensure treatments are safe and effective before they reach patients. CGTs currently hold unparalleled potential to treat a vast range of conditions that are underserved needs. However, as one of the most advanced and novel fields of medicine, enhancing patient's own cells, these therapies must operate entirely through a global regulatory framework subject to the most stringent scientific standards."

The rest is here:
ISCT: California stem cell ruling is flawed and has inserted regulatory uncertainty into the CGT market - BioPharma-Reporter.com

Posted in California Stem Cells | Comments Off on ISCT: California stem cell ruling is flawed and has inserted regulatory uncertainty into the CGT market – BioPharma-Reporter.com

Cultured meat startup Prolific Machines unveils its Henry Ford approach to cell growth – TechCrunch

Posted: September 16, 2022 at 2:26 am

The global cultured meat market is poised to reach half a billion dollars by 2030; however, this kind of technology is still very much in the R&D phase for a lot of companies that have emerged over the past five years.

Cultured meat, also known as cultivated meat, is animal meat, but instead of slaughtering the animal to get it, cells are collected from the animal and cultivated in a lab where they are then assembled into a structure of tissue that resembles the same meat we all eat.

Weve seen a few cultured meat companies unveil their products. For example, Novel Farms has a pork loin, while Bluu Seafood, a German company developing lab-grown seafood, debuted its fish sticks and fish balls last month. Same for Dutch-based Meatable with its sausages, SCiFi Foods with its burgers, and chicken for UPSIDE Foods.

However, the manufacturing process for cultured meat has historically been both very difficult and very expensive, Prolific Machines co-founder and CEO Deniz Kent told TechCrunch. Thats what his company is out to change.

You have to use these growth media proteins which are some of the most expensive things one of the proteins we are replacing is like 30,000 times more expensive than a gram of gold, he added. Its really hard to scale anything for this reason because you have to use these proteins.

Kent, who has expertise in stem cell biology, explained that these proteins have been used for decades, mainly in the biopharmaceutical industry. The technology works on pharmaceutical products that have big budgets, but not so good when you are trying to make a high-volume, low-margin product like meat, he added.

While having the idea for better proteins, he met physicist Max Huisman and machine learning engineer Declan Jones and convinced them to quit their jobs and form Prolific Machines with him in 2020.

That said, Prolific Machines believes it has a unique manufacturing approach for cultured meat cells and is coming out of stealth mode with $42 million in combined seed and Series A funding to build what Kent calls an assembly line for biology.

The company aims to do for biology what Henry Ford did for automobiles at the turn of the 20th century. Its technology, still in its early stages, is a way to grow and control cells without the need for any of those expensive recombinant proteins for cell production, he said. Prolific Machines will bring products to market, but will also license its infrastructure to other cultured meat companies.

Back then, nobody really owned cars apart from super-rich people. What really changed things was Ford, Kent said. They built the assembly line for cars and found a way to manufacture cars at a price that normal people could afford. That transformed the industry because then you went from hundreds of car companies to only three companies having over 70% of the market.

He believes the same thing is going to happen in the cultured meat industry: There are hundreds of companies right now, but most of them will die because they wont have a way to manufacture cultured meat cheap enough. The ones that can find a way will survive, he added.

Prolific Machines was part of SOSVs IndieBio program in 2021. SOSV led Prolific Machines pre-seed round. Meanwhile, for its new capital infusion, the seed-round portion was led by Arvind Gupta, partner at Mayfield, and the Series A by Bill Gatesfounded Breakthrough Energy Ventures.

I never intended to invest in another cultured meat company, but when Deniz showed me what they were doing, I was blown away by the creativity in their approach to reinvent the assembly line for food production, Gupta said in a written statement. It is my goal to help reverse climate change by partnering with incredible teams, and I am convinced Prolific Machines will be a winner in the race for sustainable food production.

Joining in on the two rounds was a group of VC firms and individual investors, including David Adelman, Mark Cuban, The Kraft Family, David Rubenstein, Michael Rubin, Breyer Capital, The SALT Fund, Purple Orange Ventures, Fred Blackford, Jake Poliskin, Matt Katz and Baruch Future Ventures. Add to that a group of celebrities and restaurateurs, including Kevin Love, Tobias Harris, Meek Mill, Ciara and Russell Wilson, Emily Ratajkowski, Maverick Carter, Sean Feeney, Michael Schulson, Mark Bucher and RJ Melman.

Kent said the Series A was raised a year ago, but the company is coming out of stealth now as it prepares to raise a quite hefty $170 million-ish Series B in the first quarter of 2023. The new funding will go toward building a 25,000-square-foot headquarters in Emeryville, California, and ramp up hiring to expand its assembly line programs, including fish, poultry and beef.

Meanwhile, he expects the facility to be done in spring 2023. Plans for the companys first product include an unstructured Wagyu, which means ground meat. Prolific Machines also has a number of high-profile chefs none that Kent could name now who have agreed to partner with the company and use its first cultured meat products.

View original post here:
Cultured meat startup Prolific Machines unveils its Henry Ford approach to cell growth - TechCrunch

Posted in California Stem Cells | Comments Off on Cultured meat startup Prolific Machines unveils its Henry Ford approach to cell growth – TechCrunch

UK Equine Research Hall of Fame Inductees Announced – Equi Management

Posted: September 16, 2022 at 2:26 am

Clockwise from top: Katrin Hinrichs, Lisa Fortier, Jennifer Anne Mumford and Stephen Reed.

The University of Kentucky Gluck Equine Research Center announced the 2022 inductees to the Equine Research Hall of Fame. This prestigious award is an international forum to honor outstanding achievements in equine research and those who have made a lasting tribute benefitting equine health. To celebrate this legacy, the UK Gluck Equine Research Foundation will induct four scientists into the UK Equine Research Hall of Fame on October 26 at Kroger Field in Lexington.

Peers of the four individuals and past awardees nominated them for their outstanding achievements in equine research. The inductees are Lisa Fortier, Katrin Hinrichs, Jennifer Anne Mumford and Stephen M. Reed.

In research, we always stand on the shoulders of those who go before us with great discoveries. This years recipients have made substantial contributions that will ensure an excellent future for equine research, said Nancy Cox, UK vice president for land-grant engagement and College of Agriculture, Food and Environment dean.

The success of Kentuckys horse industry is inseparable from the decades of hard work by outstanding equine researchers, said Stuart Brown, chair of the Gluck Equine Research Foundation. Though impossible to measure, it is a unique privilege to recognize the impact made by these four scientists in advancing the health and wellbeing of the horse and, on behalf of the entire equine community, show our appreciation.

Over the past 30 years, Fortier has garnered an international reputation for significant contributions in equine joint disease, cartilage biology and regenerative medicine. She has focused her research on early diagnosis and treatment of equine orthopedic injuries to prevent permanent damage to joints and tendons. She is perhaps best known for her work in regenerative medicine, pioneering the use of biologics such as platelet rich plasma, bone marrow concentrate and stem cells for use in horses and humans. Fortiers lab has also been instrumental in breakthroughs related to cartilage damage diagnosis and clinical orthopedic work. A testament to her impact is that 87% of U.S. equine veterinarians now use biologics for regenerative medicine in their equine patients.

Fortier earned her bachelors degree and doctor of veterinary medicine degree from Colorado State University. She completed her residency at Cornell, where she also earned a Ph.D. and was a postdoctoral fellow in pharmacology. She now holds the James Law Professor of Surgery position at Cornells College of Veterinary Medicine. She is the editor-in-chief of the Journal of the American Veterinary Medical Association and serves on the Horseracing Integrity and Safety Authority Racetrack Safety Standing Committee.

Hinrichs devotes her career to research primarily in equine reproductive physiology and assisted reproduction techniques. Specifically, her focus has included equine endocrinology, oocyte maturation, fertilization, sperm capacitation and their application to assisted reproduction techniques.

Hinrichs 40 years of research have led to several significant basic and applied research achievements. The applied accomplishments include producing the first cloned horse in North America and developing the medical standard for effective intracytoplasmic sperm injection and in vitro culture for embryo production in horses. She has mentored more than 85 veterinary students, residents, graduate students and postdoctoral fellows in basic and applied veterinary research. Her laboratories have hosted approximately 50 visiting scholars from throughout the world.

Hinrichs earned her bachelors degree and doctor of veterinary medicine degree from the University of California, Davis. She completed residency training in large animal reproduction at the University of Pennsylvanias New Bolton Center and earned a Ph.D. at the University of Pennsylvania.

A posthumous inductee, Mumford earned international respect as one of the most prominent researchers of equine infectious diseases, in particular equine viral diseases. Her distinguished career at the Animal Health Trust, Newmarket, United Kingdom, began when she became the first head of the newly established equine virology unit. Her work focused on the leading causes of acute infectious respiratory disease in the horse, primarily equine herpesvirus and equine influenza virus, and to a lesser extent,Streptococcus equi, the causative agent of equine strangles.

Mumford made numerous significant contributions in these areas, including developing improved vaccines, diagnostics and international surveillance. She also helped establish research groups in the related fields of equine genetics and immunology.

During Mumfords more than 30-year career, she established the Animal Health Trust as one of the worlds leading centers for the study of the biology, epidemiology, immunology and pathology of diseases, including equine herpes rhinopneumonitis and equine influenza, as well as bacterial diseases, including Streptococcus and Clostridium.

Reeds nominators credited him as the last word in equine neurology. Reed is widely recognized as one of the most prominent equine neurologists worldwide. His list of 180 peer-reviewed publications includes significant contributions to equine medicine, neurology, physiology and pathophysiology, and has earned him worldwide recognition throughout the equine community. He has shared in his achievements as a mentor and role-model for hundreds of aspiring equine practitioners.

One of the most unique and refreshing things about Dr. Reed is he absolutely embodies the need and overlap of discovery science with clinical assessments to further our understanding of equine neurologic disease, wrote Jennifer Janes, associate professor of veterinary pathology at the UK Veterinary Diagnostic Laboratory, in her letter of support for the nomination. This mission has served as the foundation and pillars of his long career in equine veterinary medicine.

Reed earned his bachelors degree and doctor of veterinary medicine degree from The Ohio State University. He completed internship and residency training in large animal medicine at Michigan State University.

Established in 1990, theUK Equine Research Hall of Famehonors international scientific community members who have made equine research a key part of their careers, recognizing their work, dedication and achievements. Nominees may be living or deceased, active in or retired from the field of equine research.

To join the Oct. 26 event,visit the Gluck Equine Research Center websitefor ticket information and event details.

See the rest here:
UK Equine Research Hall of Fame Inductees Announced - Equi Management

Posted in California Stem Cells | Comments Off on UK Equine Research Hall of Fame Inductees Announced – Equi Management

NIH Initiative to Build Data Sets for Developing AI Technologies – Healthcare Innovation

Posted: September 16, 2022 at 2:25 am

The National Institutes of Health has announced it will invest $130 million over four years to accelerate the widespread use of artificial intelligence (AI) by the biomedical and behavioral research communities.

The NIH Common Funds Bridge to Artificial Intelligence (Bridge2AI) program has issued four awards for data generation projects, and three to create a Bridge Center for integration, dissemination and evaluation activities. The data generation projects will generate new biomedical and behavioral data sets ready to be used for developing AI technologies, along with creating data standards and tools for ensuring data are findable, accessible, interoperable, and reusable, a principle known as FAIR, NIH said.

In addition, data generation projects will develop training materials that promote a culture of diversity and the use of ethical practices throughout the data generation process. The Bridge Center will be responsible for integrating activities and knowledge across data generation projects, and disseminating products, best-practices, and training materials.

Bridge2AI will produce a variety of diverse data types ready to be used by the research community for AI analyses. These types include voice and other data to help identify abnormal changes in the body. Researchers will also generate data that can be used to make new connections between complex genetic pathways and changes in cell shape or function to better understand how they work together to influence health. In addition, AI-ready data will be prepared to help improve decision making in critical care settings to speed recovery from acute illnesses and to help uncover the complex biological processes underlying an individuals recovery from illness.

Participating research institutions have shared some details about what they will be working on. One of the four data generation projects, Voice as a Biomarker, co-led by the University of South Florida and Weill Cornell Medicine, will bring together medical, voice, AI, engineering, and ethics experts to create a human voice database using privacy-preserving AI, giving doctors a new tool for diagnosing conditions known to have associations with voice alterations.

Based on the existing literature and ongoing research, the research team has identified five disease cohort categories for which voice changes have been associated with specific diseases with well-recognized unmet needs. Data collected for this project will center on the following disease categories:

Voice disorders: (laryngeal cancers, vocal fold paralysis, benign laryngeal lesions)

Neurological and neurodegenerative disorders (Alzheimers, Parkinsons, stroke, ALS)

Mood and psychiatric disorders (depression, schizophrenia, bipolar disorders)

Respiratory disorders (pneumonia, COPD)

Pediatric voice and speech disorders (speech and language delays, autism)

Federated learning technology an AI framework that allows machine learning models to be trained on data without the data ever leaving its source will be deployed across multiple research centers by French-American biotech startup company Owkin to demonstrate that cross-center AI research can be conducted while preserving the privacy and security of sensitive voice data.

Shannon McWeeney, Ph.D., chief data officer for the Oregon Health & Science University (OHSU) Knight Cancer Institute, will co-lead tool development to support one of the grand challenge projects in the Bridge2AI program, aimed at generating new biomedical and behavioral data sets that are ethically sourced, trustworthy, well-defined and accessible. The collaborative team will leverage $7.8 million in funding for the first year to develop software and standards to unify data attributes across multiple data sources and types.

Moving the field of AI forward is essential to help detect and treat earlier diseases like cardiovascular disease, diabetes and cancer, says McWeeney, a professor and head of the Division of Bioinformatics and Computational Biology in the OHSU School of Medicine, in a statement. The ability to understand and affect the course of complex, multi-system diseases has been limited by a lack of well-designed, high-quality, large, and inclusive multimodal datasets. We need transparency about how the data are generated with regard to any bias or uncertainties, and to ensure they are ethically sourced. We also need to lower the barrier for researchers to be able to use AI-based tools in their future research.

Other institutions collaborating on the Data Generation project include: University of Washington, California Medical Innovations Institute, Johns Hopkins University, University of California at San Diego, University of Pennsylvania, Stanford University, Native BioData Consortium, University of Alabama at Birmingham, University of Mississippi Medical Center, Henry Ford Health System and Microsoft.

David Dorr, M.D., M.S., chief research information officer and professor of medical informatics and clinical epidemiology in the OHSU School of Medicine, will co-lead another of the grand challenge projects, Skills and Workforce Development, with a team from Washington University in St. Louis.

This module will be centered on bridging expertise across people in the biomedical and behavioral research domains to develop an AI/machine-learning research workforce. Dorr says this project is designed to enhance skill development and attract and develop a specialized workforce.

Researchers at University of California San Diego and University of California San Francisco are expected to receive nearly $20 million in the next four years to launch Cell Maps for AI, a research project designed to usher in a new era of precision medicine. The team envisions a future in which an AI algorithm could analyze a patient's genome and decipher which disease they have, what stage they are in and which treatments are most likely to help. Importantly, they say the algorithm must be interpretable, such that a physician could point to the molecular and cellular pathways that inform its decisions.

"It's not enough for an algorithm to just take a complex set of mutations and decide what drug to give a patient if we don't know why it's making that choice," said Trey Ideker, professor at UC San Diego School of Medicine, in a statement. "We may now have enough human genomes sequenced to power precision medicine, but what we don't have yet is a clear map of cellular biology to interpret the data with."

To address this, the project aims to map the structure and function of a human cell in its entirety, starting with the most basic cell type: the stem cell. The researchers will obtain induced pluripotent stem cells from a variety of genetic backgrounds and combined microscopy, biochemistry and computational tools to study their biology at multiple scales. The final product will be a comprehensive model of the cell, from genes and proteins to entire organelles and how they all work together. Once the stem cell has been modeled, they plan to use the same approach to model other cells, such as those that are dividing, differentiating or in various disease states.

Their goal is to eventually have a library of cell maps across many demographic and disease contexts, which can be used to train AI algorithms to make informed and interpretable decisions about human health.

Excerpt from:
NIH Initiative to Build Data Sets for Developing AI Technologies - Healthcare Innovation

Posted in Mississippi Stem Cells | Comments Off on NIH Initiative to Build Data Sets for Developing AI Technologies – Healthcare Innovation

Page 223«..1020..222223224225..230240..»