Stem Cells – The New York Times

Aug. 6, 2014

Colleagues of Yoshiki Sasai, leading Japanese life science researcher, say he has taken his own life; Sasai was co-author of discredited stem cell study published in journal Nature that was retracted due to factual errors and allegations of misconduct. MORE

Journal Nature retracts two scientific papers it published that initially electrified biologists by describing easy way to make stem cells; says papers were error-filled and had not been verified by anyone else. MORE

Op-Ed article by evolutionary geneticist Svante Paabo warns against using sequenced genomes of Neanderthals to re-create Neanderthal individuals; contends from an ethical perspective such an idea should be condemned, and argues that using stem cells to create cells and tissues in test tubes for research is far more ethically defensible and technically feasible. MORE

Scientists, reporting in journal Cell Stem Cell, move step closer to goal of creating stem cells perfectly matched to a patients DNA in order to treat diseases; say they have created patient-specific cell lines for 'therapeutic cloning' out of skin cells of two adult men. MORE

Japanese research institute concludes that study published in journal Nature that was once hailed as breakthrough in creating stem cells contains fabricated and doctored images that cast doubt on its findings; singles out study's lead author Haruko Obokata, stem cell biologist, saying she had altered or misrepresented illustrations in her research papers. MORE

Japanese research institute acknowledges that study billed as breakthrough in stem cell research contained spliced image, material recycled from lead author's doctoral thesis, and other mistakes; disclosure threatens to discredit newly acclaimed researcher Haruko Obokata, whose team found that simple acid bath might turn cells in the body into stem cells; findings appeared in journal Nature. MORE

Teruhiko Wakayama, one of the authors of startling study that claimed to have found a simple way to make stem cells, says he is no longer sure of its conclusions; calls for its retraction. MORE

Study published in journal Nature finds that simple acid bath might turn out to be quicker and easier source of multipurpose stem cells than methods now in use; technique was developed by researchers at Riken Center for Developmental Biology in Kobe, Japan, and Brigham and Womens Hospital and Harvard Medical School in Boston MORE

Stem cell clinics in United States and Mexico, like Regenerative Medicine Institute in Tijuana, are offering unproven stem cell treatments for high price to desperate clients, posing challenge for scientists who are moving cautiously and seeking more data; efficacy and safety of such treatments remains in question. MORE

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Stem Cells - The New York Times