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Effects of metformin on serum levels of sex hormone, leptin and insulin in ovariectomized Sprague-Dawley rats.

机译:二甲双胍对卵巢切除术大鼠性激素,瘦素和胰岛素血清水平的影响。

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摘要

The aim of the present experiment was to study the effects of metformin (MF) on serum concentrations of sex hormone, leptin and insulin in ovariectomized (OVX) Sprague-Dawley (SD) rats. The serum estradiol (E2), progesterone (P), leptin and insulin concentrations were measured with radioimmunoassay (RIA). Compared with SHAM operated rats, the serum concentrations of E2 and P were significantly lower (P < 0.01), but leptin and insulin were significantly higher in OVX rats (P < 0.01). MF (135mg kg(-1) d(-1), ig, 30 d) had no evident effects on serum concentrations of E2, P, leptin and insulin in OVX rats. MF (270 mg kg(-1) d(-1), ig, 30 d) markedly increased serum concentrations of E2 and P (P < 0.05) while decreased serum concentrations of leptin and insulin (P < 0.05 and P < 0.01) in OVX rats. We concluded that long-term treatment of high dose MF cannot only significantly decrease serum concentrations of leptin and insulin, but also increase E2 and P in OVX SD rats.
机译:本实验的目的是研究二甲双胍(MF)对卵菜(OVX)Sprague-Dawley(SD)大鼠的血清性激素,瘦素和胰岛素的血清浓度。 用放射免疫测定(RIA)测定血清雌二醇(E2),孕酮(P),瘦素和胰岛素浓度。 与假手术大鼠相比,E2和P的血清浓度显着降低(P <0.01),但OVX大鼠瘦素和胰岛素显着高出显着较高(P <0.01)。 MF(135mg kg(-1)d(-1)d(-1),Ig,30d)对OVx大鼠血清E2,P,瘦素和胰岛素的血清浓度没有明显影响。 MF(270mg kg(-1)d(-1),Ig,30 d)显着增加了血清E2和P(P <0.05)的血清浓度,同时降低了瘦素和胰岛素的血清浓度(P <0.05和P <0.01) 在OVX大鼠。 我们得出结论,高剂量MF的长期治疗不能显着降低瘦蛋白和胰岛素的血清浓度,而且在OVX SD大鼠中增加E2和P.

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