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Supplement may prevent alcohol-related brain, skull defects
Date:5/27/2010

AUGUSTA, Ga. The dietary supplement CDP-choline, sold as a brain-boosting agent and under study for stroke and traumatic brain injury, may block skull and brain damage that can result from alcohol consumption early in pregnancy, Medical College of Georgia researchers report.

Alcohol consumption in early pregnancy increases levels of a little-known lipid called ceramide, significantly increasing suicide among cells critical to skull and brain formation, Dr. Erhard Bieberich, biochemist in the MCG Schools of Graduate Studies and Medicine, reports in Cell Death and Disease.

Resulting neural crest damage includes the brain's "skin" the multi-layered meninges that provides protection and nourishment producing less TGF-β1, a growth factor critical for brain and bone development. That finding may help explain the cranial bone and cognitive defects that can result in fetal alcohol syndrome.

"There is just a little window," Bieberich said, about four weeks after conception when neural crest cells emerge for a few days before morphing into other cell types that help form numerous organs. This is often before a woman knows she is pregnant. The studies indicate the potential for lasting damage to the fetus if a woman drinks, for example, several glasses of wine within an hour during that window.

MCG researchers suspected ceramide, known to induce cell death and be activated by alcohol, as a culprit in the damage. They found high levels of ceramide both in mouse cells and pregnant mice exposed to alcohol along with a five-fold increase in apoptotic, or dying cells. "There is a clear correlation," he said.

Researchers thought neural crest cells were tough cells whose function could be replaced if they happened to get injured. Instead they found that 25 percent of mouse embryos exposed to alcohol during that critical period had defects in the fibrous joints that connect the skull. "You get a snowball
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Contact: Toni Baker
tbaker@mcg.edu
706-721-4421
Medical College of Georgia
Source:Eurekalert  

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