Cevik Ozge, Akpinar Hikmet, Oba Rabia, Cilingir Ozlem Tugce, Ozdemir Zarife Nigar, Cetinel Sule, Yoldemir Tevfik
Department of Biochemistry, Faculty of Pharmacy, Cumhuriyet University, Sivas, Turkey,
Mol Biol Rep. 2015 Jan;42(1):167-77. doi: 10.1007/s11033-014-3756-7. Epub 2014 Sep 25.
Estrogen or combinational hormone therapy can protect to menopausal symptoms but exogenous estrogen therapy has some potential risks which in turns lead to the appearance of various diseases. In recent years plants with high phytoestrogen content are recommended as therapeutic agents for postmenopausal hormonal treatment. In this research, we investigated the effects of Momordica charantia (MC) on the estrogen production and E2 as well as anti-oxidative and anti-apoptotic role on the ovariectomy rat model. The rats were ovariectomized and fed on 2 g/kg of fruit extra of MC for 30 days by gavage. 17-β estradiol (E2) and 8-OHdG levels in serum, markers of oxidative damage of ROS and ESRα, ESRβ and NF-kB gene levels were measured in uterus horn tissue. Caspase-3, caspase-9, TNF-α, IL-6, IL-10, Bcl-2 and Nf-kB proteins expression were assessed by western blotting. Structural changes in tissue were examined with H&E staining. MC administration also stimulated the E2 production and ESRα/ESRβ gene levels and the inhibited oxidative damage. Furthermore, MC treatment enhanced anti-apoptotic and anti-inflammatory process and tissue regeneration. Data herein support that MC directly regulates uterine estrogen response and may serve as a new phytoestrogenic substance for the treatment of post-menopausal symptoms.
雌激素或联合激素疗法可预防更年期症状,但外源性雌激素疗法存在一些潜在风险,进而导致各种疾病的出现。近年来,富含植物雌激素的植物被推荐作为绝经后激素治疗的药物。在本研究中,我们研究了苦瓜(MC)对去卵巢大鼠模型雌激素生成、雌二醇(E2)以及抗氧化和抗凋亡作用的影响。将大鼠去卵巢,通过灌胃给予2 g/kg苦瓜果实提取物,持续30天。检测子宫角组织中血清17-β雌二醇(E2)和8-羟基脱氧鸟苷(8-OHdG)水平、活性氧(ROS)氧化损伤标志物以及雌激素受体α(ESRα)、雌激素受体β(ESRβ)和核因子κB(NF-κB)基因水平。通过蛋白质印迹法评估半胱天冬酶-3(Caspase-3)、半胱天冬酶-9(Caspase-9)、肿瘤坏死因子-α(TNF-α)、白细胞介素-6(IL-6)、白细胞介素-10(IL-10)、Bcl-2和NF-κB蛋白表达。用苏木精-伊红(H&E)染色检查组织的结构变化。给予苦瓜提取物还刺激了E2生成和ESRα/ESRβ基因水平,并抑制了氧化损伤。此外,苦瓜提取物治疗增强了抗凋亡和抗炎过程以及组织再生。本文数据支持苦瓜提取物直接调节子宫雌激素反应,可能作为一种新的植物雌激素物质用于治疗绝经后症状。