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FYI: interesting new abstract resveratrol & post-stroke depression


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#1 geo12the

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Posted 06 May 2015 - 06:04 PM

Neuropharmacology. 2015 Apr 29. pii: S0028-3908(15)00146-X. doi: 10.1016/j.neuropharm.2015.04.017. [Epub ahead of print]
The effect of trans-resveratrol on post-stroke depression via regulation of hypothalamus-pituitary-adrenal axis.
Pang C1Cao L1Wu F2Wang L3Wang G4Yu Y5Zhang M6Chen L6Wang W1Chen L4Zhu J4Pan J2Zhang H7Xu Y8Ding L9.

Post-stroke depression (PSD) occurs about 40% among all stroke survivors, but the effective pharmacotherapy is inadequately understood. The present study investigated the effects of a natural polyphenol trans-resveratrol (RES) on behavioral changes after middle cerebral artery occlusion (MCAO) and examined what its molecular targets may be. RES was shown to decrease the infarct size and neurological scores after MCAO, suggesting the amelioration of brain damage and motor activity. RES also reversed the depressive-like behaviors 13 days after MCAO, both in the forced swimming and sucrose consumption tests. Moreover, MCAO-induced series abnormalities related to depressive-like behaviors, such as an abnormal adrenal gland weight to body weight ratio, an increased expression of the corticotropin-releasing factor (CRF) in the frontal cortex, hippocampus and hypothalamus, the differential expression of glucocorticoid receptor (GR) in these three brain regions, and a decreased brain-derived neurotrophic factor (BDNF) level, were ameliorated after treatment with increasing doses of RES at 10, 20 and 40 mg/kg via gavage. These findings provide compelling evidence that RES protects the brain against focal cerebral ischemia-induced injury, but most of all is its antidepressant-like effect on PSD, which might at least in part be mediated by regulation of hypothalamus-pituitary-adrenal axis function.


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