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暖巢煲调控线粒体功能改善早发性卵巢功能不全的实验研究

暖巢煲调控线粒体功能改善早发性卵巢功能不全的实验研究

ISSN:1674-070X
2023年第43卷第6期
实验研究
周虹1,李兰1,刘文娥2,陈镇2,邓桂明2,何阳2,肖小芹1,3 ZHOU Hong,LI Lan,LIU Wen''e,CHEN Zhen,DENG Guiming,HE Yang,XIAO Xiaoqin

目的 探讨暖巢煲调控卵巢线粒体功能治疗化疗性早发性卵巢功能不全(premature ovarian insufficiency, POI)损伤小鼠,为其临床应用提供科学依据。方法 从40只8周龄雌性C57BL/6小鼠中抽取8只为空白组,其余构建POI模型。将成功建模的32只小鼠随机分为模型组、暖巢煲低剂量组、暖巢煲中剂量组、暖巢煲高剂量组,每组8只。模型组、空白组予0.01 mL/g生理盐水灌胃。观察小鼠的一般状况、体质量和动情周期变化,给药3周后,称取各组小鼠卵巢湿质量,计算卵巢指数。ELISA法检测各组小鼠血清抗米勒管激素(anti-Müllerian hormone, AMH)水平,HE染色观察卵巢组织形态学变化,透射电镜观察线粒体的形态和结构,Western blot检测视神经萎缩蛋白1(optic atrophy 1, OPA1)和PTEN诱导假定激酶1(PTEN-induced putative kinase 1, PINK1)的表达水平。结果 与空白组比较,模型组进食量减少、毛色枯燥;体质量增长率下降(P<0.05);卵巢指数明显下降(P<0.01);动情周期...

Objective To discuss the clinical efficacy of Ovary-Warming Pot (OWP) on premature ovarian insufficiency (POI) mice by regulating ovarian mitochondrial function and to provide a scientific basis for its clinical application. Methods Eight of 40 8-week-old female C57BL/6 were selected as blank group, and the rest were used to establish the POI models. Then 32 successfully modeled mice were randomly divided into model group, low-, medium- and high-dose OWP groups, with 8 mice in each group. The model group and blank group were given 0.01mL/g normal saline by gastric lavage. The general condition, body weight, and estrous cycle of mice were observed. After 3 weeks of administration, the wet ovarian weight of mice in each group was weighed to calculate the ovarian index. The serum anti-Müllerian hormone (AMH) level was determined by enzyme-linked immunosorbent assay (ELISA), the morphological changes of ovarian tissue were observed by hematoxylin-eosin (HE) staining, and the morphology and structure of mitochondria were observed by transmission electron microscopy. Western blot was used to determine the expression levels of optic atrophy 1 (OPA1) and PTEN-induced protein kinase 1 (PINK1). Results Compared with blank group, the mice in model group had less food intake and dull hair color; their growth rate of body mass was lower (P<0.05); the ovarian index was significantly lower (P<0.01); the estrous cycle was disordered; the serum AMH was lower (P<0.05); the growth follicles at all levels decreased, while atresia follicles increased significantly; the mitochondrial structure was seriously damaged, with obvious cavitation; the expression levels of OPA1 and PINK1 were significantly down-regulated (P<0.01). Compared with model group, the growth rates of body mass in high-, medium- and low-dose OWP groups were higher (P<0.05); the ovarian indexes in medium- and low- dose OWP groups were higher, and the estrus cycle became regular gradually; the serum AMH in medium- and high- dose OWP groups was significantly higher (P<0.05), the mitochondrial structure of mice oocytes was significantly improved, and the OPA1 and PINK1 protein expressions were significantly up-regulated (P<0.01). Conclusion Mitochondrial dysfunction may be one of the mechanisms leading to ovarian insufficiency in mice. However, OWP can regulate mitochondrial function and improve premature ovarian insufficiency, which may be related to the dynamic process of promoting mitochondrial self-renewal.

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ISSN:1674-070X
2023年第43卷第6期
实验研究

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