The LA Times today gives one more reason why embryonic stem-cell research should become unnecessary:
Scientists have converted cells from human testes into stem cells that grew into muscle, nerve cells and other kinds of tissue, according to a study published Wednesday in the online edition of Nature.The stem cells offer another potential alternative to embryonic stem cells for researchers who aim to treat diseases such as diabetes and Parkinson’s by replacing damaged or malfunctioning cells with custom-grown replacements.
Scientists have also derived flexible adult stem cells from skin, amniotic fluid and menstrual blood.
The new cells were created from sperm-making cells obtained from testicular biopsies of 22 men.
They are theoretically superior to traditional embryonic stem cells because they can be obtained directly from male patients and used to grow replacement tissue that their bodies won’t reject, Sabine Conrad of the University of Tuebingen in Germany and her colleagues wrote.
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