首页> 美国卫生研究院文献>Oxidative Medicine and Cellular Longevity >Morinda citrifolia L. Leaf Extract Protects against Cerebral Ischemia and Osteoporosis in an In Vivo Experimental Model of Menopause
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Morinda citrifolia L. Leaf Extract Protects against Cerebral Ischemia and Osteoporosis in an In Vivo Experimental Model of Menopause

机译:巴戟天叶片提取物在更年期体内实验模型中预防脑缺血和骨质疏松症

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摘要

We aimed to determine the protective effects against cerebral ischemia and osteoporosis of Morinda citrifolia extract in experimental menopause. The neuroprotective effect was assessed by giving M. citrifolia leaf extract at doses of 2, 10, and 50 mg/kg BW to the bilateral ovariectomized (OVX) rats for 7 days. Then, they were occluded in the right middle cerebral artery (MCAO) for 90 minutes. The neurological score, brain infarction volume, oxidative stress status, and ERK1/2 and eNOS activities were assessed 24 hours later. M. citrifolia improved neurological score, brain infarction, and brain oxidative stress status in the cortex of OVX rats plus the MCAO. No changes in ERK 1/2 signal pathway and NOS expression were observed in this area. Our data suggested that the neuroprotective effect of the extract might occur partly via the improvement of oxidative stress status in the cortex. The antiosteoporotic effect in OVX rats was also assessed after an 84-day intervention of M. citrifolia. The serum levels of calcium, osteocalcin, and alkaline phosphatase and osteoblast density in the tibia were increased, but the density of osteoclast was decreased in OVX rats which received the extract. Therefore, the current data suggested that the extract possessed antiosteoporotic effect by increasing bone formation but decreasing bone resorption.
机译:我们旨在确定巴戟天提取物在实验性更年期中对脑缺血和骨质疏松的保护作用。通过给予双侧卵巢切除(OVX)大鼠2、10和50μmg/ kg BW剂量的枸杞分支杆菌叶提取物7天来评估其神经保护作用。然后,将它们阻塞在右大脑中动脉(MCAO)中90分钟。 24小时后评估神经学评分,脑梗死体积,氧化应激状态以及ERK1 / 2和eNOS活性。柠檬叶分枝杆菌改善了OVX大鼠和MCAO皮质的神经系统评分,脑梗死和脑氧化应激状态。在该区域未观察到ERK 1/2信号通路和NOS表达的变化。我们的数据表明,提取物的神经保护作用可能部分通过改善皮层中的氧化应激状态而发生。在枸杞分支杆菌干预84天后,还评估了OVX大鼠的抗骨质疏松作用。接受提取物的OVX大鼠的血清钙,骨钙素和碱性磷酸酶水平升高,胫骨中的成骨细胞密度降低,而破骨细胞密度降低。因此,目前的数据表明该提取物具有增加骨形成但降低骨吸收的抗骨质疏松作用。

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