Males - Live With Females And Extend Reproductive Life 20 Percent

Thursday, January 22, 2009 - 17:14 in Biology & Nature

Living with a female mouse can extend the reproductive life of a male mouse by as much as 20 percent, according to a study conducted by Ralph Brinster and a team of other researchers at the University of Pennsylvania School of Veterinary Medicine and reported in the journal Biology of Reproduction.  The researchers hypothesize that the females' effect on the environment of the spermatogonial stem cells likely occurs through the male's endocrine and nervous systems, but other systems are likely involved. The change amounts to a reduction of fertility six months earlier in "lonely" mice as opposed to those who have female companionship.  read more

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