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1.
目的:探讨visfatin基因在多囊卵巢综合征(PCOS)网膜脂肪组织中的表达及相关影响因素。方法:采用半定量RT-PCR方法检测PCOS组(30例)和对照组(25例)网膜脂肪组织visfatin mRNA表达,并测量体重指数、腰臀比、空腹血糖、空腹胰岛素、胰岛素抵抗指数和血清性激素水平。结果:①PCOS组网膜脂肪组织visfatin mRNA表达量高于对照组(P=0.000)。②网膜脂肪组织visfatin mRNA的表达量与BMI、WHR、FINS、HOMA-IR呈正相关(P〈0.05)。③多元逐步回归分析显示,HOMA-IR(P=0.000)和WHR(P=0.005)是影响网膜脂肪组织visfatin mRNA表达的相关因素。结论:网膜脂肪组织visfatin mRNA表达可能与PCOS胰岛素抵抗的发生和肥胖相关。 相似文献
2.
目的:观察右归丸联合小檗碱治疗多囊卵巢综合征(PCOS)的临床疗效。方法:将114例PCOS伴胰岛素抵抗患者随机分为2组。对照组57例给予达英-35+二甲双胍,实验组57例给予右归丸联合小檗碱治疗。通过比较治疗前后的胰岛素水平(FINS)、胰岛素抵抗指数(HOMA-IR)、总胆固醇(TC)、甘油三酯(TG)、空腹血糖(FPG)、肿瘤坏死因子(TNF)及白介素-6(IL-6)水平的变化,观察右归丸联合小檗碱对PCOS胰岛素抵抗的作用疗效。结果:治疗前后实验组与对照组分别各自比较,HOMA-IR、FINS、TC、TG、TNF、IL-6显著下降,差异有统计学意义(P0.05);两组间治疗前各项指标无统计学意义(P0.05),治疗后与对照组比较,实验组TNF、IL-6水平显著下降(P0.05)。结论:右归丸联合小檗碱能显著改善患者的血脂及慢性炎症状态,最终改善胰岛素敏感性。 相似文献
3.
目的:探讨多囊卵巢综合征(polycystic ovary syndrome,PCOS)患者血清抗苗勒管激素(anti-Müllerian hormone,AMH)水平与肥胖、胰岛素抵抗(insulin resistance,IR)程度的相关性。方法:选择在我院生殖中心就诊的139名PCOS患者为研究组,并以月经周期正常、因输卵管因素或男性因素导致不孕者48名作为对照组。检测和比较PCOS患者的血清AMH、性激素水平及代谢指标,分析血清AMH水平与PCOS患者肥胖、胰岛素抵抗程度的关系。结果:PCOS组患者体质量指数(body mass index,BMI)、黄体生成素(luteinizing hormone,LH)、睾酮(testosterone,T)、垂体泌乳素(pituitary prolactin PRL)、空腹血糖(fasting plasma glucose,FPG)、空腹胰岛素(fasting insulin,FINS)、稳态模型胰岛素抵抗指数(homenostasis models assessment-insulin resistance index,HOMA-IR)的水平均显著高于对照组(P0.05),PCOS组和对照组年龄、卵泡刺激素(follicle stimulating hormone,FSH)比较差异无统计学意义(P0.05)。PCOS各表型组的血清AMH浓度、LH/FSH比值均明显高于对照组(P0.05)。肥胖组患者的AMH浓度低于正常体重组,BMI、FPG、FINS、HOMA-IR、甘油三脂(triglycerides,TG)水平均高于正常体重组,LH、LH/FSH、高密度脂蛋白(high density lipoprotein,HDL-C)水平均低于正常体重组(P0.05)。高HOMA-IR组患者的血清AMH浓度、LH、LH/FSH水平均明显低于低HOMA-IR组,BMI、T、FPG、FINS、TG、低密度脂蛋白(low density lipoprotein,LDL-C)水平均高于低HOMA-IR组(P0.05)。PCOS患者血清AMH浓度和BMI及HOMA-IR均存在显著负相关。结论:PCOS患者血清的AMH水平较对照组明显升高,与其肥胖、胰岛素抵抗(IR)程度呈显著负相关。 相似文献
4.
目的:探讨罗格列酮与二甲双胍联合给药对多囊卵巢综合征(PCOS)患者胰岛素抵抗指数(HOMA-IR)的变化影响与临床效果的评价。方法:回顾性选取我院收治的PCOS患者127例列为研究样本,按照用药方案差异分为两组,对照组62例采用二甲双胍进行治疗;研究组65例采用罗格列酮联合二甲双胍治疗。观察并比较两组患者治疗前后HOMA-IR、血清性激素水平、排卵率及副反应发生情况。结果:治疗后,研究组HOMA-IR低于对照组,排卵率高于对照组(P0.05);研究组患者血清E2及T水平低于对照组,而FSH及SHBG水平高于对照组(P0.05);两组患者副反应发生率比较,差异无统计学意义(P0.05)。结论:罗格列酮辅助二甲双胍治疗PCOS可显著改善患者HOMA-IR,对性激素平衡有良好作用,副作用较小。 相似文献
5.
《Phytomedicine》2021
BackgroundPolycystic ovary syndrome (PCOS) is a clinical syndrome with reproductive and endocrine disorders. Berberine is a monomer from Chinese herbs such as Coptis chinensis, whose effect on improving ovulation and endometrial receptivity of PCOS is uncertain.PurposeTo evaluate the effect of berberine on improving PCOS and explore the mechanism.MethodsThe rat model of PCOS was induced by intraperitoneal injection of testosterone propionate. Then they was divided into model (Mod) group, low-dose of berberine (BL) group, high-dose of berberine (BH) group and metformin (Met) group as well as a control (Con) group was established. Ovary morphology, hormone level, glucolipid metabolism were measured. UID-mRNA-seq of ovary tissue was conducted to seek the mechanism of berberine on improving ovulation. Three biomarkers of endometrial receptivity were also examined in endometrium by immunohistochemistry.ResultsThe number of cystic follicles was increased while the number of corpus luteum was decreased in the rats of Mod group. These changes could be reversed by high-dose of berberine intervention. Berberine could also decrease the levels of serum luteinizing hormone (LH) and total cholesterol (TC) in PCOS rats. Meanwhile, berberine improved the impairment of abnormal oral glucose tolerance without affecting fasting insulin level and Homeostasis model assessment-insulin resistance (HOMA-IR). Luteinizing hormone/ choriogonadotropin receptor (LHCGR) and cytochrome P450 Family 19 Subfamily A Member 1 (CYP19A1) were focused via RNA-seq of ovary. Protein expression in ovary and mRNA expression in granulosa cell of LHCGR and CYP19A1 were decreased in Mod group and rescued by the intervention of berberine. A decrease of endometrial thickness and an increase of integrin αvβ3 and lysophosphatidic acid receptor 3 (LPAR3) protein expression were observed in Mod group, which could be also reversed by berberbine.ConclusionsBerberine could improve ovulation in PCOS and the mechanism might be associated with up-regulating LHCGR and CYP19A1. Berberine could also improve endometrial receptivity through down-regualting αvβ3 and LPAR3. 相似文献
6.
摘要 目的:探讨加味补中益气汤治疗肥胖型多囊卵巢综合征(PCOS)患者的疗效及对子宫内膜容受性和糖脂代谢的影响。方法:选择2018年3月~2020年5月期间我院收治的肥胖型PCOS患者280例,采用抽签法分为观察组140例和对照组140例。对照组给予二甲双胍片治疗,观察组给予加味补中益气汤治疗,对比两组疗效、体质量指数(BMI)、腰臀比、性激素指标[雌二醇(E2),促黄体生成激素(LH)、卵泡刺激素(FSH)]、子宫内膜容受性指标[子宫内膜厚度、子宫内膜螺旋动脉搏动指数(PI)与阻力指数(RI)]、糖脂代谢指标[总胆固醇(TC)、低密度脂蛋白 (LDL-C)、甘油三酯(TG)、高密度脂蛋白 (HDL-C)、空腹血糖(FPG)]。结果:观察组的临床总有效率为92.14%(129/140),高于对照组的80.71%(113/140)(P<0.05)。治疗3个月经周期后,两组BMI、腰臀比、PI、RI、LH、FSH、TC、LDL-C、TG、FPG均下降,且观察组低于对照组(P<0.05)。治疗3个月经周期后,两组子宫内膜厚度、HDL-C、E2升高,且观察组高于对照组(P<0.05)。结论:加味补中益气汤治疗肥胖型PCOS患者,可降低患者体质量,调节性激素、子宫内膜容受性和糖脂代谢水平,具有较好的疗效。 相似文献
7.
目的: 探讨NOD样受体蛋白3(NLRP3)信号通路对非酒精性脂肪肝病(NAFLD)大鼠胰岛素抵抗的影响及乳酸受体G蛋白偶联受体81(GPR81)激动剂的干预作用。方法: 选择清洁级SD雄性大鼠30只,随机分为3组,对照组、NAFLD组、GPR81激动剂组,每组10只。用高脂饮食建立大鼠非酒精性脂肪肝模型;GPR81激动剂组:在非酒精性脂肪肝模型基础上腹腔注射GPR81特异性乳酸激动剂(50 nmol/L),每周1次,其余两组注射等量的生理盐水,共12周。测定肝生化指标、空腹血糖及胰岛素和肝匀浆中炎症因子的含量,观察各组肝组织病理学形态;Western blot检测肝组织中NLRP3、含CARD结构域的凋亡相关斑点蛋白(ASC)、天冬氨酸特异性半胱氨酸蛋白酶1(caspase-1)、胰岛素受体底物-1(IRS-1)、胰岛素受体底物酪氨酸磷酸化(Tyr465-IRS-1)、胰岛素受体底物丝氨酸磷酸化(Ser636-IRS-1)、葡萄糖转运蛋白4(GLUT4)的蛋白表达;qRT-PCR法检测肝组织NLRP3、ASC、caspase-1、IRS-1、GLUT4 mRNA表达水平。结果: 与对照组相比,NAFLD组大鼠血清肝生化指标甘油三酯(TG)、丙氨酸转氨酶(ALT)、天门冬氨酸氨基转移酶(AST)、空腹血糖(FPG)、空腹胰岛素(FINS)和胰岛素抵抗指数(HOMA-IR)值均显著升高(P<0.05);肝组织病理学形态结果表明,NAFLD组大鼠肝组织可见明显的肝脂肪变性,肝细胞有脂肪滴,存在明显的炎性细胞浸润,且NAFLD组肝组织NLRP3、ASC、caspase-1的mRNA和蛋白表达及Ser636-IRS-1的蛋白表达均显著升高,且肝组织及血清中白细胞介素-1β(IL-1β)和白细胞介素-18(IL-18)的含量升高;而IRS-1、GLUT4 的mRNA和蛋白表达Tyr465-IRS-1的蛋白表达显著降低(P<0.05);与NAFLD组相比,GPR81激动剂组上述指标均得到明显改善。结论: NLRP3信号通路活化介导炎症因子产生促进了NAFLD的发生发展,GPR81激动剂可能成为NAFLD潜在的治疗手段。 相似文献
8.
摘要 目的:分析血清骨钙素(OC)、血小板反应蛋白-1(TSP-1)、血管生成素样蛋白2(ANGPTL2)与多囊卵巢综合征(PCOS)患者胰岛素抵抗(IR)、性激素和卵巢间质血流的关系。方法:选取2020年1月~2022年4月内蒙古自治区人民医院收治的125例PCOS患者(PCOS组),根据稳态模型评估(HOMA)-IR分为IR组68例和非IR组57例,另选取同期67例体检健康成年女性(对照组)。收集研究对象HOMA-IR和性激素、卵巢间质血流指标,采用酶联免疫吸附法检测血清OC、TSP-1、ANGPTL2水平。比较PCOS组与对照组、IR组与非IR组之间性激素、卵巢间质血流指标、血清OC、TSP-1、ANGPTL2水平的差异。采用Pearson/Spearman相关性分析法分析PCOS患者血清OC、TSP-1、ANGPTL2水平与HOMA-IR、性激素和卵巢间质血流指标的相关性。结果:PCOS组HOMA-IR、黄体生成素(LH)、LH/促卵泡生成素(FSH)、睾酮(T)、收缩期峰值速度(PSV)、ANGPTL2水平高于对照组,搏动指数(PI)和阻力指数(RI)、OC、TSP-1水平低于对照组(P<0.05)。IR组LH、LH/FSH、T、PSV、ANGPTL2水平高于非IR组,PI、RI、OC、TSP-1水平低于非IR组(P<0.05)。Pearson/Spearman相关性分析显示,PCOS患者血清OC、TSP-1水平与HOMA-IR、LH、LH/FSH、T、PSV呈负相关,与PI、RI呈正相关(P<0.05);血清ANGPTL2水平与PCOS患者HOMA-IR、LH、LH/FSH、T、PSV呈正相关,与PI、RI呈负相关(P<0.05)。结论:血清OC、TSP-1在PCOS患者血清中低表达,ANGPTL2在PCOS患者血清中高表达,三者与PCOS患者IR、性激素和卵巢间质血流密切相关。 相似文献
9.
Expression of glucose transporter 4 mRNA in adipose tissue and skeletal muscle of ovariectomized rats treated with sex steroid hormones 总被引:5,自引:0,他引:5
The effects of 17beta-estradiol (E) and/or progesterone (P) on glucose transporter 4 (GLUT4) expression in the adipose tissue and skeletal muscle of ovariectomized female rats were studied. The Sprague-Dawley rats received daily subcutaneous injections of various doses of E and/or P for 7 days (n=5-6 per dose). The expression of GLUT4 mRNA was assessed by performing ribonuclease protection assays. GLUT4 protein levels were assessed by Western blotting assays. The adipose tissue levels of GLUT4 mRNA were reduced by the administration of 50 microg E, which resulted in unphysiologically high serum E concentrations. Although the GLUT4 mRNA levels did not change after the administration of 10 microg E or 5 mg P, they were reduced significantly to approximately half the control group level by the administration of both hormones (p <0.01). The skeletal muscle GLUT4 mRNA levels were not changed significantly by hormone treatment. These findings suggest that E and P may be involved in the regulation of GLUT4 mRNA expression in adipose tissue. 相似文献
10.
摘要 目的:基于磷酸化雷帕霉素靶蛋白(P-mTOR)/雷帕霉素靶蛋白(mTOR)通路探讨来曲唑片联合益母草颗粒对多囊卵巢综合征(PCOS)患者的作用及其机制研究。方法:选取2021年4月至2022年8月期间济南市第二妇幼保健院收治的142例PCOS患者,按照随机数字表法将患者分为对照组(接受来曲唑片治疗,n=71)和研究组(接受来曲唑片联合益母草颗粒治疗,n=71)。对比两组性激素指标、空腹血糖(FPG)、空腹胰岛素(FINS)、胰岛素抵抗指数(HOMA-IR)、血清P-mTOR、mTOR水平。结果:两组治疗3个月后黄体生成素(LH)、雌二醇(E2)、睾酮(T)下降,促卵泡激素(FSH)上升,且研究组的LH、E2、T低于对照组,FSH高于对照组(P<0.05)。两组治疗3个月后FPG、HOMA-IR、FINS下降,且研究组低于对照组(P<0.05)。两组治疗3个月后血清P-mTOR及mTOR水平下降,且研究组低于对照组(P<0.05)。结论:益母草颗粒、来曲唑片联合治疗可能通过调控P-mTOR/mTOR通路改善PCOS患者的性激素、血糖水平及胰岛素抵抗。 相似文献
11.
There is still some controversy concerning the effects of metformin in the treatment of Polycystic Ovary Syndrome (PCOS). The aim of this study was to asses the effect of metformin on clinical, metabolic and hormone parameters in obese women with PCOS. Thirty obese, non-diabetic women with PCOS received 500 mg of metformin or placebo, TID, over 90 days. Assessed parameters included body mass index, waist-to-hip ratio, blood pressure, FSH, LH, total testosterone, SHBG, fasting insulinemia, insulin-to-glucose ratio, total, HDL and LDL cholesterol, triglycerides, and menstrual cycles before and after the use of the drugs. Before treatment, patients did not differ in the two groups. After 90 days of metformin use, PCOS women presented significantly lower levels of total testosterone (p = 0.030) and total cholesterol (p = 0.023) compared to the women that used placebo. The other parameters did not differ between the groups. In conclusion, obese women with PCOS may benefit from the use of metformin through the reduction of hyperandrogenemia, total cholesterol, and possibly by restoration of regular menstrual cycles. Further studies with longer follow-ups are necessary to determine cardiovascular and endometrial metformin benefits and insulin-resistance decrease in women with polycystic ovary syndrome. 相似文献
12.
探究肠道微生物与2型糖尿病(T2DM)患者T淋巴细胞亚群和炎症因子水平的相关性。
选择2019年4月到2022年4月我院收治的94例T2DM患者作为T2DM组,另选体检健康者81例作为对照组,采集所有受试者外周血及粪便样本,检测空腹血糖(FPG)、胰岛素抵抗指数(HOMA-IR)、空腹胰岛素(FINS)、炎症因子IL-6、hs-CRP水平、T淋巴细胞亚群(CD3+、CD4+、CD8+)水平和主要肠道菌群丰度,分析主要肠道菌群变化与CD4+/CD8+、IL-6、hs-CRP的关系。
治疗后T2DM组FBG、FINS、HOMA-IR、IL-6、hs-CRP水平均高于对照组(
T2DM患者肠道菌群失调、定植力受损,这可能与其能引发患者CD4+/CD8+水平降低和炎症因子IL-6、hs-CRP水平升高有关。
13.
目的:探讨SOCS-3在非酒精性脂肪肝病(NAFLD)发病中的作用以及吡格列酮的干预作用。方法:29只雄性SD大鼠随机分为正常对照组(8只),高脂饮食组(21只)。饲养8周后,从高质饮食组随机抽取5只大鼠证实造模成功后,将该组余下的16只大鼠继续以高脂饲料喂养,并随机分为NAFLD对照组(8只);吡格酮干预组(8只),予以吡格列酮3mg·kg^-1·d^-1灌胃。16周末,处死所有大鼠,检测血糖、血胰岛素、血脂、肝脏SOCS-3mRNA和SREBP-lcmRNA表达及肝脏病理学。结果:与正常对照组相比,NAFLD组血糖、血胰岛素、血脂、肝脏脂肪变水平及肝组织SOCS-3mRNA、SREBPlCmRNA表达显著上调。吡格列酮干预组sOCS.3mRNA、SREBP-1cmRNA表达较NAFLD组下调,且血糖、血胰岛素、血脂、肝脏脂肪变水平下降。SOCS-3mRNA表达水平与胰岛素抵抗指数、SREBP.1cmRNA表达水平、肝脂肪变成显著正相关。结论:SOCS-3可能通过胰岛素抵抗及上调肝组织SREBP-lcmRNA表达参与NAFLD发病,吡格列酮能抑制肝脏SOCS-3的表达,对NAFLD有一定治疗作用。 相似文献
14.
Effect of metformin on adipose tissue resistin expression in db/db mice 总被引:17,自引:0,他引:17
Fujita H Fujishima H Morii T Koshimura J Narita T Kakei M Ito S 《Biochemical and biophysical research communications》2002,298(3):345-349
Resistin, a novel adipose-derived protein, has been proposed to cause insulin-resistant states in obesity. To evaluate whether an insulin-sensitizing drug, metformin, regulates adipose tissue resistin expression, murine models of obesity and diabetes, db/db mice, were treated with metformin (metformin group), insulin (insulin group), and vehicle (control group) for 4 weeks, followed by analyzing resistin protein expression in their adipose tissues. Unexpectedly, resistin protein expression was increased by 66% in the metformin group relative to the control group, while it did not differ between the insulin and control groups. Hyperinsulinemia was improved in the metformin group, while the insulin group exhibited severe hyperinsulinemia, similar to the control group. Furthermore, in comparison between obese mice (db/db mice) and age-matched lean controls, resistin protein expression was reduced by 58% in the obese mice with severe hyperinsulinemia. These data collectively suggest that resistin expression may be suppressed by hyperinsulinemia and that metformin may upregulate resistin expression via the improvement of hyperinsulinemia in obesity. 相似文献
15.
《Reproductive biology》2022,22(1):100594
Polycystic ovary syndrome (PCOS) is a common endocrine gynecological disorder. Insulin resistance (IR) is a major cause of PCOS. Melatonin, a critical endogenous hormone, has beneficial effects on the female reproductive system. This study aims to investigate the molecular effect of melatonin on IR in human ovarian granulosa cells (GCs). Hormone levels of the subjects were determined through clinical examination. The expression levels of insulin receptor substrate (IRS)-1 and glucose transporter (GLUT4) in GCs from PCOS patients and a human granulosa cell line (SVOG) were examined using qRT-PCR and western blot. The IR cell model was established by inducing SVOG cells with palmitic acid (PA). IR was detected in GCs of PCOS patients and SVOG by measuring glucose content and glucose uptake. Cell viability and apoptosis levels were detected by CCK-8 assay and flow cytometry. PI3K/Akt pathway expression in SVOG was assessed by western blot. PCOS patients had higher levels of luteinizing hormone (LH), testosterone, and LH/follicle-stimulating hormone. PA decreased cell viability, promoted apoptosis, and reduced glucose uptake in SVOG cells. IRS-1 and GLUT4 mRNA and protein expression was downregulated, and glucose uptake capacity was reduced in PCOS GCs and SVOG cells. Melatonin significantly upregulated IRS-1 and GLUT4 expression, downregulated p-IRS-1 (Ser307), and improved glucose uptake in PCOS patients' GCs and SVOG cells. PA decreased PI3K and Akt phosphorylation, whereas melatonin increased p-PI3K and p-Akt levels. Melatonin can reduce IR in GCs and PA-induced SVOG cells via the PI3K/Akt signaling pathway, providing more evidence for treating polycystic ovary syndrome. 相似文献
16.
目的:探讨二甲双胍联合西格列汀对2型糖尿病患者氧化应激、胰岛素抵抗的影响。方法:收集我院就诊或住院治疗的80例2型糖尿病患者,随机分为实验组和对照组,每组40例。两组患者入院后均给予相应的治疗措施,对照组患者给予二甲双胍250 mg/次,2次/d;实验组患者在对照组的基础上给予西格列汀100 mg/次,1次/d,治疗均连续8周。治疗结束后对患者血清丙二醛(MDA)、8异前列腺素F2α(8-iso-PGF2α)、空腹血糖(FBG)、空腹胰岛素(FINS)、胰岛素抵抗指数(HOMA-IR)以及患者临床治疗效果进行检测并比较。结果:与治疗前相比,治疗后两组患者MDA、8-iso-PGF2α、FBG、FINS以及HOMA-IR水平均下降(P0.05);与对照组相比,实验组患者MDA、8-iso-PGF2α、FBG、FINS以及HOMA-IR水平较低(P0.05),临床治疗总有效率较高(P0.05)。结论:二甲双胍联合西格列汀能够降低2型糖尿病患者血糖水平,降低MDA、8-iso-PGF2α水平,减轻氧化应激反应,降低胰岛素抵抗,临床疗效较好。 相似文献
17.
Mlinar B Marc J Jensterle M Bokal EV Jerin A Pfeifer M 《The Journal of steroid biochemistry and molecular biology》2011,123(3-5):127-132
Polycystic ovary syndrome (PCOS) is characterized by insulin resistance (IR) and central obesity. The impact of adipose tissue cortisol reactivation by 11β-hydroxysteroid dehydrogenase type 1 (11β-HSD1) on markers of obesity and IR was assessed in PCOS patients. Eighty-five PCOS patients and 43 controls were enrolled for subcutaneous adipose tissue biopsy; 25/85 patients and 29/43 controls underwent also visceral adipose tissue biopsy. HSD11B1 gene expression and expression of lipid metabolism genes were measured in subcutaneous and visceral adipose tissues. Anthropometric and biochemical markers of IR and PCOS were also assessed. HSD11B1 expression in visceral and subcutaneous adipose tissue was increased in PCOS patients compared to controls (p<0.05). After BMI adjustment, the difference was no longer significant. In PCOS patients, visceral HSD11B1 expression correlated positively with waist circumference (p=0.001), BMI (p=0.002), plasma insulin (p<0.05), systolic blood pressure (p=0.003), and lipoprotein lipase (LPL), hormone-sensitive lipase (LIPE) and peroxisome-proliferator activated receptor γ gene expression. Subcutaneous HSD11B1 expression correlated positively with BMI, waist circumference (p<0.001 for both) and HOMA-IR (p=0.003), and negatively with LPL, LIPE, adiponectin and glucose transporter GLUT4 gene expression. HSD11B1 expression in both depots showed a negative correlation with plasma HDL-cholesterol (p<0.03) and a positive one with C-reactive protein (p<0.001). In multiple regression analysis, HSD11B1 expression in visceral adipose tissue was most prominently associated with waist circumference, and that in subcutaneous adipose tissue with BMI (p<0.001 for both). Our results show that PCOS is not associated with increased HSD11B1 expression once adiposity is controlled for. Increased expression of this gene correlates with markers of adiposity and predicts IR and an unfavorable metabolic profile, independently of PCOS. 相似文献
18.
Bacallao K Leon L Gabler F Soto E Romero C Valladares L Vega M 《The Journal of steroid biochemistry and molecular biology》2008,110(1-2):163-169
The aim of the present investigation was to study whether the endocrinological status of women bearing polycystic ovarian syndrome (PCOS) affects the endometrial in situ steroid metabolism. For this purpose, we evaluated the mRNA levels (RT-PCR), and the activity of steroid metabolic enzymes: P450 aromatase, steroid sulfatase (STS), estrogen sulfotransferase (EST) and 17beta-hydroxysteroid dehydrogenase (17beta-HSD) in 23 samples of normal endometria (CE), 18 PCOS endometria without treatment (PCOSE), 10 specimens from PCOS women with endometrial hyperplasia (HPCOSE), and 7 endometria from patients with endometrial hyperplasia not associated to PCOS (EH). The data showed lower levels of STS mRNA for PCOSE and HPCOSE (p<0.05, p<0.01, respectively) and of EST for HPCOSE and EH compared to control (p<0.05). However, higher levels for EST mRNA were obtained in PCOSE (p<0.05) versus CE. The mRNA and protein levels for P450 aromatase were undetectable in all analyzed endometria. The relationship between the activities of STS and EST was lower in PCOSE and HPCOSE (p<0.05) versus CE. The ratio between the mRNA from 17beta-HSD type 1/type 2 was higher in PCOSE (p<0.05), whereas, a diminution in the 17beta-HSD type 2 activity was observed in PCOSE (p<0.05). These results indicate that the activity of enzymes related to the steroid metabolism in analyzed PCOSE differ from those found in the CE. Consequently, PCOSE may present an in situ deregulation of the steroid metabolism. 相似文献
19.
The present study investigated the expression of the apoptosis-related genes fas-associated via death domain (FADD) and Bcl-2 in the endometrium during the window of implantation in polycystic ovary syndrome (PCOS) patients. The aim was to explore the role of cell apoptosis in endometrial receptivity during this period. The subjects were divided into experimental and control group. The experimental group comprised 12 infertile women with PCOS, and the control group comprised 12 women who were infertile because of tubal pathological factors but had normal menstrual cycles. Endometria were collected by biopsy 7d after ovulation. Six samples from each group were randomly selected and subjected to gene chip analyses. The expression of endometrial FADD and Bcl-2 was determined by immunohistochemistry, and cell apoptosis was detected by the TUNEL method. Compared with the control group, 194 differentially expressed genes were found in the PCOS group, 102 of which were upregulated and 92 were downregulated. The differentially expressed genes were divided into 15 types according to function. Among the nine genes related to cell apoptosis, five (including Bcl-2) were upregulated and four were downregulated (including FADD). Bcl-2 expression during the window of implantation in the PCOS group increased compared with the control group, showing a significant difference (P<0.05). FADD expression in the PCOS group notably decreased compared with that in the control group, which also showed a significant difference (P<0.05). Cell apoptosis analysis showed a significant difference between the average apoptotic indices in the PCOS and control groups (P<0.05). Significant differences were observed between the endometrial gene expression in the PCOS and control groups. The decrease in cell apoptosis during the window of implantation in PCOS patients may be one of the causes of the reduced endometrial receptivity. 相似文献
20.
《Saudi Journal of Biological Sciences》2020,27(2):689-694
The current study was aimed to study the effect of curcumin on the expression levels of brain glucose transporter 1 protein (GLUT1) and femoral muscle glucose transporter 4 protein (GLUT4), in addition to study its possible therapeutic role in ameliorating insulin resistance and the metabolic disturbance in the obese and type 2 diabetic male albino Wistar rat model. Diabetes was induced by a high-fat (HF) diet with low dose streptozotocin (STZ). Curcumin was administered intragastrically for 8 weeks (80 mg/kg BW/day). The HF-diet group developed obesity, hyperglycemia, hyperinsulinemia, reduced liver glycogen content with significant dyslipidemia. In the diabetic control group, hyperglycemia and insulin resistance high calculated homeostasis model assessment (HOMA-IR-index score) were pronounced, with reductions in liver and muscle glycogen contents, concomitant with dyslipidemia and significantly elevated malondialdehyde levels in liver and pancreas. GLUT1 and GLUT4 were down-regulated in the obese and the diabetic control groups, respectively. Curcumin, showed glucose-lowering effect and decreased insulin resistance, dyslipidemia and malondialdehyde levels in both tissues, it increased liver & muscle glycogen contents, compared to the diabetic control. Curcumin significantly up-regulated GLUT4 gene expression, compared to the diabetic control group. In conclusions, these results indicate a therapeutic role of curcumin in improving the diabetic status, obesity and enhancing the expression of GLUT4 gene. 相似文献