Archive by date | December 2014

Contamination created controversial ‘acid-induced’ stem cells

Stem cells that were claimed to be created simply by exposing ordinary cells to stress were probably derived from embryonic stem cells, according to the latest investigation into an ongoing scientific scandal. How that contamination occurred, however, remains an open question.  Read more

US to lift ban on blood donations from gay men

The US Food and Drug Administration has announced plans to end a lifetime ban on blood donation for men who have sex with men that has been in place since 1983. The current ban covered all men who have had sex with men at any time since 1977, and was intended to prevent the spread of the HIV virus but was seen by gay-rights activists as discriminatory.  Read more