Brain Research 2005-Nov
Both estrogen and progesterone attenuate edema formation following diffuse traumatic brain injury in rats.
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Abstract
Females have reduced brain edema compared to males after experimental brain trauma, although contradictory reports exist as to whether this is due to either estrogen or progesterone. In the present study, we demonstrate in both male and ovariectomized female rats that a single physiological dose of either hormone at 30 min after diffuse traumatic brain injury reduces both blood brain barrier permeability and edema formation. We conclude that both hormones may contribute to reduce edema in females after brain injury.