So I was watching 60 minuets, and they had this peace on using stem cells to clean up clogged arteries in rats. For some reason they used female stem cells on the male rats and male stem cells on the female rats. The male stem cells did nothing, but the female stem cells worked very well. The researcher was saying that because everyone uses male stem cells for research, that this is why stem cells have not lived up to the hype.
Well I can't find a thing about this anywhere. Is there really a different between male and female stem cells?