Mice Lacking Serotonin Swap Sexual Preferences, Peking University Study
5/29/2013 7:32:01 AM
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It is known as the happiness chemical, but could serotonin also influence sexual preference? It certainly seems to in mice. Serotonin is normally associated with mood – particularly feelings of well-being. But when Yi Rao of Peking University in Beijing, China, and his colleagues genetically engineered female mice so that they could no longer make or respond to serotonin, it appeared to affect their sexuality. Although they would still mate with males if no other females were present, given the choice, the rodents preferred sniffing and mounting females.
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