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A group of European researchers have discovered that early life traumatic events can alter a non-genetic mechanism governing gene expression in the sperm cells of adult mice. And they think that this finding, published today in Nature Neuroscience, explains why the offspring of these mice exhibit the same depressive-like behaviors that their parents do.
Under normal circumstances, she says, microRNAs regulate gene expression. But the trauma that these mice experienced resulted in the over-expression of microRNAs in the brain and an abnormal dip the production of certain proteins. "This," Mansuy says, "makes animals do things wrong."
When researchers looked at the sperm of the traumatized mice, they discovered that the microRNAs in these sperm cells were also present in abnormally high numbers. "This means that germ cells — sperm in males and oocytes in females — are very sensitive to environmental conditions in early life," Mansuy says, "and early childhood trauma has consequences not only for the brain but also for the germ cell line."
Does anyone think a case could be made for "a change in behavior being passed down" from those exposed to war through their childern and it's effects on our current society.
If such a connection could be shown, just think of the results a "never ending war on terror" may have in the future. - See more at: www.abovetopsecret.com...