The National Institutes of Health proposed lifting its moratorium on funding for research on part-animal, part-human embryos — which raises a huge dilemma, says bioethicist Insoo Hyun.
The National Institutes of Health is proposing to fund experiments that create chimeras of human and animal cells while also imposing restrictions in response to ethical concerns.
NIH Director Francis Collins has stopped research at two leading labs for now. But an independent board of experts wants even more oversight to ensure that patient safety is the top priority.
The National Institutes of Health shut down some clinical trials and two production facilities over concerns that safety rules haven't been followed, but it says no patients appear to have been hurt.
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Women report more bad side effects from medicines than men do. Researchers say the discrepancy may stem in part from how biomedical research is conducted at its earliest stages in animals.
The group of patients that was treated more intensively did 25 percent better than the one that was treated to the traditional target. But some side effects nearly doubled with intensive treatment.