Buyang Huanwu Decoction () reduces infarct volume and enhances estradiol and estradiol receptor concentration in ovariectomized rats after middle cerebral artery occlusion / 中国结合医学杂志

ABSTRACT

<p><b>OBJECTIVE</b>To investigate the effect of Buyang Huanwu Decoction (, BYHWD) on estradiol (E2) and estradiol receptor (ER) in serum and brain in ovariectomized rats after middle cerebral artery occlusion (MCAO).</p><p><b>METHODS</b>Adult female rats were ovariectomized and focal cerebral ischemic was induced by MCAO. Rats were randomly divided into normal, ovariectomy (OVX), MCAO, OVX+MCAO, OVX+MCAO+E2, and OVX+MCAO+BYHWD group. Rats were administered BYHWD 5 g/kg daily, estradiol valerate 500 μg/kg per day or distilled water for 7 consecutive days. Neuronal function and infarct volume were measured on day 7 after artery occlusion, and E2 and ER concentration in serum and brain were checked by enzyme-linked immunosorbent assay.</p><p><b>RESULTS</b>BYHWD significantly improved the neurological behavior, reduced the infarction volume, increased E2 concentration in serum and brain, and increased ER concentration in the brain in ovariectomized rats after MCAO.</p><p><b>CONCLUSION</b>The neuroprotective effects of BYHWD are associated with estrogen and its receptor.</p>