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Estrogen therapy helps or hurts the brain depending on reproductive status
Date:6/15/2008

s. Then they induced a stroke in all the animals. A week later, the rats' brains were studied for tissue damage.

The stroke caused much more tissue damage in the acyclic older females, the authors reported. "Estrogen treatment to this group actually increased the volume of the brain that was damaged," Sohrabji said.

In the mature adult rats, however, estrogen therapy apparently reduced the area of brain damage. After the stroke all rats showed evidence of sensory and motor damage on behavioral testing, but it was more severe in the acyclic rats.

"This study supports the idea that there is a narrow window of time as a woman approaches menopause and immediately afterward where estrogen therapy may provide neuroprotective benefits," Sohrabji said.


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Contact: Aaron Lohr
alohr@endo-society.org
240-482-1380
The Endocrine Society
Source:Eurekalert

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