血清抵抗素、C-反应蛋白及IL-6与PCOS的相关性研究

目的:探讨血清脂肪细胞因子抵抗素(resistin)、C-反应蛋白(CRP)、白细胞介素6(IL-6)水平与PCOS发生的相关性。方法:收集PCOS患者45例,再根据体质量指数(BMI)分为肥胖亚组(≥25kg/m2,22例)和非肥胖亚组(<25kg/m2,23例)。正常对照组45例,同样按BMI分为肥胖亚组(14例)和非肥胖亚组(31例)。空腹采集血清,采用酶联免疫分析法测定抵抗素、免疫比浊法测定CRP、放射免疫法测定IL-6,全自动生化分析仪测定血糖、血脂、化学发光法测定内分泌水平和血清胰岛素水平,同时测量身高、体质量、腰围、臀围,计算BMI和腰臀比值(WHR)。结果:与对照组非肥胖者相比,PCOS组肥胖、非肥胖者及对照组肥胖者抵抗素水平均显著增高(P<0.05);PCOS组和对照组肥胖者的CRP水平均高于对照组非肥胖者(P<0.05);PCOS组肥胖和非肥胖者的IL-6水平高于对照组非肥胖者(P<0.05)。抵抗素和CRP均与BMI、WHR、HOMA-IR呈显著正相关(P<0.05);IL-6与BMI、WHR有显著相关性,与HOMA-IR无相关性。结论:脂肪细胞因子抵抗素、CRP及IL-6参与PCOS患者肥胖和胰岛素抵抗的发生发展。     

肥胖与非肥胖多囊卵巢综合征患者血清肿瘤坏死因子-α(TNF-α)水平的比较

目的:比较肥胖与非肥胖多囊卵巢综合征(PCOS)患者血清肿瘤坏死因子-α(TNF-α)水平的差异。方法:55例PCOS患者,根据体质量指数(BMI)分为肥胖组(BMI>25,n=31)和非肥胖组(BMI≤25,n=24);同期选择50例非PCOS育龄妇女,分为肥胖对照组(BMI>25,n=25)和非肥胖对照组(BMI≤25,n=25)。应用酶联免疫吸附法(ELISA)测定血清TNF-α的含量,分析TNF-α与胰岛素抵抗指数(HOMA-IR)的相关性。结果:PCOS肥胖组与PCOS非肥胖组的TNF-α水平分别显著高于其相应的对照组(P<0.01),PCOS非肥胖组的TNF-α水平也显著高于肥胖对照组(P<0.05)。PCOS肥胖组与PCOS非肥胖组之间的TNF-α水平无显著差异(P>0.05)。PCOS组TNF-α与HOMA-IR呈显著正相关(P<0.05)。结论:肥胖与非肥胖PCOS患者的血清TNF-α水平均升高,可能存在肥胖以外升高TNF-α的途径;TNF-α与PCOS的IR发生有密切联系。     

卵巢黄素化颗粒细胞瘦素信号转导分子STAT3磷酸化在多囊卵巢综合征发病中的作用

目的:探讨瘦素在多囊卵巢综合征(PCOS)发病中的作用。方法:选择行IVF-ET治疗的30例PCOS患者根据体重指数(BMI)分为肥胖者(BMI≥24)15例和非肥胖者(BMI<24)15例,及同期排卵功能正常或单纯输卵管因素不孕的非PCOS肥胖者和非肥胖者各15例,采用ELISA检测各组血清瘦素水平;采用放射免疫法检测各组空腹血清胰岛素(FIN)水平;采用葡萄糖氧化酶法测定各组空腹血糖(FPG)水平,利用稳态模型(HOMA)计算胰岛素抵抗指数(即HOMA-IR);采用Western blotting检测卵巢黄素化颗粒细胞信号转导分子STAT3磷酸化水平;同法检测不同浓度的瘦素(0ng/ml、10ng/ml、100ng/ml、1000ng/ml)体外对正常人卵巢黄素化颗粒细胞STAT3磷酸化(p-STAT3)的影响。结果:①血清瘦素水平PCOS肥胖者最高,其后依次为对照组肥胖者、PCOS非肥胖者和对照组非肥胖者,各组之间两两比较,差异均具有显著性(P<0.05);②PCOS患者血清瘦素水平与BMI和HOMA-IR均呈显著正相关(r=0.707,P<0.01;r=0.761,P<0.01);③STAT3水平肥胖PCOS组最高,其后依次为肥胖对照组、非肥胖PCOS组和正常对照组,各组间两两比较,差异均具有显著性(P<0.05);④正常人卵巢黄素化颗粒细胞经不同浓度瘦素处理48h后,p-STAT3水平呈不同程度增加,至瘦素浓度达到100ng/ml时,p-STAT3水平达到高峰,随后呈下降趋势。结论:瘦素可能通过激活JAK2/STAT3信号传导通路参与PCOS排卵障碍的发生。     

血清脂联素水平测定在多囊卵巢综合征中的意义

目的:探讨脂联素水平在多囊卵巢综合征(PCOS)中的意义。方法:选择我院PCOS患者48例作为研究对象,同期选择非PCOS患者40例作为对照,分为肥胖组与非肥胖组,胰岛素抵抗组与非胰岛素抵抗组。测定血清脂联素水平及内分泌代谢指标。结果:①PCOS组血清脂联素水平低于对照组(P<0.05);非肥胖PCOS组低于非肥胖对照组(P<0.05);胰岛素抵抗组低于非胰岛素抵抗组(P<0.05)。②血清脂联素水平与体重指数(BMI)、空腹胰岛素(FINS)、胰岛素抵抗指数(HOMA-IR)、腰臀比(WHR)、甘油三酯(TG)呈负相关(P<0.01,P<0.05),与葡萄糖胰岛素比值(GIR)、胰岛素敏感指数(ISI)呈正相关(P<0.01)。控制BMI影响后血清脂联素水平仍与HOMA-IR、TG呈负相关(P<0.05),与GIR、ISI呈正相关(P<0.01)。结论:①PCOS患者存在低脂联素血症,脂联素水平与胰岛素抵抗程度呈负相关。②脂联素可以作为PCOS发生糖尿病远期并发症的预测指标。     

血浆内脂素与多囊卵巢综合征的相关性

目的 探讨血浆内脂素与多囊卵巢综合征(PCOS)及肥胖的关系.方法 选择2008年1～6月在徐州医学院附属医院妇产科确诊为PCOS的患者70例,将PCOS组患者根据体重指数(BMI)分为肥胖者(BMI≥25)34例和非肥胖者(BMI<25)36例;选择同期就诊的非PCOS不孕患者和健康志愿者60例为对照组(肥胖者30例,非肥胖者30例).采用酶联免疫吸附法(ELISA)检测两组空腹血浆内脂素浓度,同时测定身高、体重、腰围、臀围、空腹血糖(FBS)、空腹胰岛素(FINS),计算BMI、腰臀比(WHR)、胰岛素抵抗指数(HOMA-IR).结果 PCOS组肥胖、非肥胖患者血浆内脂素[分别为(66.31±14.93)μg/L和(45.52±18.67)μg/L]明显高于对照组肥胖、非肥胖者[分别为(41.03±17.93)μg/L和(26.94±13.38)μg/L],差异有统计学意义(P<0.05);PCOS组肥胖患者血浆内脂素浓度高于非肥胖患者,差异有统计学意义(P<0.05).相关分析显示PCOS患者血浆内脂素浓度与BMI呈正相关(r=0.402,P<0.05),而与WHR、FBS、FINS、HOMA-IR无相关性.结论 PCOS患者存在高内脂素血症,内脂素水平与BMI呈正相关,提示内脂素可能参与PCOS与肥胖的发病机制.     

多囊卵巢综合征患者血清脂联素水平及与胰岛素抵抗相关性的研究

目的:检测多囊卵巢综合征(PCOS)患者血清脂联素(APN)水平,探讨APN与胰岛素抵抗(IR)的相关性。方法:研究对象于月经周期第3~5天行75g糖耐量实验(OGTT实验),分别测定0h、1h、2h的血糖(FPG、PG1h、PG2h)、胰岛素(FINS、INS1h、INS2h)和脂联素(FAPN、APN1h、APN2h)。PCOS患者给予达英-353个周期联合二甲双胍治疗3个月后复查上述指标,比较治疗前后的变化。结果:(1)PCOS组与对照组均表现为肥胖组APN水平低于非肥胖组,且PCOS组中肥胖组与非肥胖组的APN水平均低于对照组(P<0.05);(2)PCOS组中肥胖组与非肥胖组的FINS、INS1h、INS2h、AUCins及HOMA-IR均高于对照组,且肥胖PCOS组高于非肥胖PCOS组(P<0.05);(3)PCOS组经二甲双胍联合达英-35治疗后FINS、INS1h、INS2h、AUCins、HOMA-IR均降低(P<0.05),而APN水平明显升高;(4)相关性分析表明,PCOS患者APN水平与FINS、INS1h、INS2h、FPG、AUCins、HOMA-IR和BMI均呈负相关。多元逐步回归分析显示,APN与FINS、HOMA-IR的相关性最显著。结论:PCOS患者APN水平显著降低与IR密切相关。     

PCOS患者血清抗苗勒管激素(AMH)水平与胰岛素抵抗及雄激素的关系

目的:研究多囊卵巢综合征(PCOS)患者血清抗苗勒管激素(AMH)水平的变化及其与胰岛素抵抗(IR)和雄激素的关系。方法:回顾性分析85例PCOS患者及79例正常女性的体质量指数(BMI)、血清AMH、血糖、胰岛素、雄激素、稳态模型胰岛素抵抗指数(HOMA-IR)间的相互关系。血清AMH采用ELISA法测定,空腹血浆葡萄糖(FPG)采用葡萄糖氧化酶法测定,空腹胰岛素(FIns)采用化学发光法测定,睾酮(T)采用酶联免疫法测定。结果:PCOS组血清AMH水平明显高于对照组;Person相关分析表明,PCOS组血清AMH水平与HOMA-IR及BMI不相关,与雄激素、年龄相关。多元线性回归分析显示,PCOS组中血清雄激素水平是血清AMH的影响因素。结论:PCOS人群中血清AMH较正常女性升高,但其升高与IR无关,而与雄激素水平密切相关。     

血清促生长激素释放激素受体配体与多囊卵巢综合征的相关性分析

目的:探讨血清促生长激素释放激素受体配体(Ghrelin)水平在多囊卵巢综合征(PCOS)中的意义.方法:选择我院PCOS患者48例作为研究对象(PCOS组),同期选择非PCOS患者40例作为对照(对照组),根据体重指数(IBM)将PCOS组、对照组患者分别分为肥胖与非肥胖,根据稳态模型胰岛素抵抗指数(HOMA-IR)将PCOS组及全部患者分为胰岛素抵抗(IR)与非IR.测定血清Ghrelin水平及内分泌代谢指标.结果:血清Ghrelin水平PCOS组低于对照组(P<0.05);肥胖组低于非肥胖组(P<0.05);非肥胖组低于非肥胖对照组(P<0.05);IR组低于非IR组(P<0.05).血清Ghrelin水平与BMI、空腹胰岛素(FINS)、HOMA-IR呈负相关(P<0.01,P<0.05,P<0.05),与胰岛素敏感指数(ISI)呈正相关(P<0.05).结论:PCOS患者存在血清低Ghrelin水平,Ghrelin水平与BMI、IR程度呈负相关.Ghrelin可能与PCOS的肥胖发生有相关性.血清Ghrelin检测可能作为预测PCOS患者IR的一个指标.     

PCOS患者卵巢胰岛素抵抗的发生机理探讨

目的:探讨胰岛素抵抗/高胰岛素血症在PCOS生殖功能障碍中的作用。方法:收集行IVF-ET治疗的11例PCOS患者(PCOS组)和15例排卵正常的输卵管性不孕患者(对照组)促排卵后卵巢黄素化颗粒细胞,行体外培养,分别用不同浓度胰岛素处理细胞48h,采用RT-PCR和Westernblot检测黄素化颗粒细胞胰岛素受体底物(IRS)-1和IRS-2mRNA及蛋白的表达。采用放射免疫法检测血清性激素及空腹血清胰岛素(FIN)水平;采用葡萄糖氧化酶法测定空腹血糖(FPG)水平;计算胰岛素抵抗指数(HOMA-IR)。结果:①PCOS患者血清LH、LH/FSH、T、FIN及HOMA-IR均明显高于对照组(P<0.05);②0mU/ml胰岛素时,PCOS组黄素化颗粒细胞IRS-1mRNA及蛋白的表达水平明显高于对照组(P<0.05),而IRS-2mRNA及蛋白的表达水平较对照组明显降低(P<0.05);③10mU/ml胰岛素对二组患者黄素化颗粒细胞IRS-1和IRS-2mRNA及蛋白的表达均无影响(P>0.05);④100mU/ml或1000mU/ml胰岛素作用后,二组患者IRS-1mRNA及蛋白的表达水平均明显增高(P<0.05),而IRS-2mRNA及蛋白的表达水平均明显降低(P<0.05)。结论:PCOS患者胰岛素抵抗/高胰岛素血症通过提高卵巢颗粒细胞IRS-1的表达,降低IRS-2的表达参与患者卵巢生殖功能障碍的发生。     

多囊卵巢综合征患者胰岛素抵抗与脂代谢的关系

目的:探讨多囊卵巢综合征(PCOS)患者胰岛素抵抗(IR)、肥胖及血脂代谢的关系。方法:把PCOS病人分成IR组(15例),非IR组(25例),另设正常育龄妇女为对照组(20例)三组,检测空腹血甘油三脂(TG)、总胆固醇(TC)、载脂蛋白A1(ApoA1)、载脂蛋白B(ApoB)、高密度脂蛋白胆固醇(HDL-C)、低密度脂蛋白胆固醇(LDL-C)、葡萄糖耐量试验(OGTT)、胰岛素(INS)释放试验,并计算体重指数(BMI)和腰臀比(WHR)。结果:(1)BMI、WHR三组间差别有显著意义(P<0.05,P0.05),后者三组间差别有显著意义(P<0.05)。结论:PCOS病人的IR与肥胖及脂代谢关系密切,使发生心血管疾病风险增加。     

多囊卵巢综合征患者血清中一氧化氮水平及其相关因素的临床研究

目的探讨多囊卵巢综合征（PCOS）患者血清一氧化氮（NO）水平与其血管并发症的关系。方法采用硝酸还原酶法测定27例PCOS患者（PCOS组）,21例因男方因素或输卵管因素不孕患者（对照组）血清NO水平,测定并计算体重指数（BMI）、腰臀比（WHR）、收缩压（SBP）、舒张压（DBP）、体脂含量、胰岛素抵抗指数（HOMA-IR）、胰岛素敏感指数（IAI）、血清性激素、空腹血糖（FPG）和胰岛素（FINS）水平。结果非肥胖PCOS组的HOMA-IR高于非肥胖对照组,IAI、血清NO水平低于非肥胖对照组,差异均有显著性（P〈0.05）。非肥胖PCOS组IAI明显高于肥胖PCOS组,差异有显著性（P〈0.01）。血清NO水平在PCOS组和其对照组间差异无显著性（P〉0.05）。PCOS组中,血清NO水平与HOMA-IR（r=-0.317,P〈0.05）、体脂含量（r=-0.346,P〈0.05）呈负相关。结论PCOS患者血清NO水平降低,提示PCOS患者可能存在血管内皮功能受损。     

多囊卵巢综合征患者外周血Ang-(1-7)、AngⅡ/Ang-(1-7)比值与胰岛素抵抗及脂代谢的相关性研究

目的探讨多囊卵巢综合征(PCOS)患者中肾素血管紧张素系统(renin angiotensin system,RAS)与胰岛素抵抗(IR)及脂代谢的关系。方法 PCOS患者根据胰岛素抵抗指数(HOMA-IR)分为IR组(HOMA-IR≥2.69,n=80)与非IR组(NIR组,HOMA-IR2.69,n=67),另以25例正常月经周期女性作为对照组。采用酶联免疫法(ELISA)测定外周血血管紧张素Ⅱ(AngⅡ)、血管紧张素1-7[Ang-(1-7)]的水平,化学发光法测定血清性激素、空腹胰岛素(FINS)、血脂水平。结果 (1)IR组与NIR组外周血中AngⅡ和Ang-(1-7)水平均高于对照组(P0.05),IR组与NIR组间AngⅡ水平无统计学差异(P0.05),但Ang-(1-7)水平IR组低于NIR组(P0.05);(2)IR组外周血中AngⅡ/Ang-(1-7)比值高于NIR组及对照组(P0.05),NIR组AngⅡ/Ang-(1-7)比值较对照组无统计学差异(P0.05);(3)Pearson相关分析显示,IR组外周血中Ang-(1-7)与FINS、HOMA-IR、体质量指数(BMI)呈负相关,与卵泡刺激素(FSH)呈正相关(P0.05);NIR组外周血中Ang-(1-7)与甘油三酯(TG)呈负相关,与高密度脂蛋白(HDL)呈正相关(P0.05)。结论 PCOS患者外周血存在AngⅡ、Ang-(1-7)亢进现象;AngⅡ/Ang-(1-7)比值失衡与PCOS患者的IR及代谢紊乱有关,Ang-(1-7)水平的提高可能改善IR及代谢紊乱。     

抗苗勒管激素与非肥胖型多囊卵巢综合征合并胰岛素抵抗的关系

目的:探究抗苗勒管激素(AMH)与非肥胖型多囊卵巢综合征(PCOS)合并胰岛素抵抗(IR)的关系。方法:研究纳入102例非肥胖型PCOS患者为PCOS组,其中PCOS合并IR组(n=48),单纯PCOS组(n=54),50名非肥胖型健康人作为对照组。比较3组血清AMH水平以及AMH水平与PCOS合并IR的关系。结果:PCOS合并IR组血清AMH水平和HOMA-IR高于单纯PCOS组和对照组,差异有统计学意义(均P0.001)。PCOS组AMH水平与HOMAIR呈正相关(r=0.704,P0.001)。结论:非肥胖型PCOS患者合并IR血清AMH水平升高,AMH水平与PCOS合并IR相关。     

Adiponectin is an independent determinant of insulin resistance in women with polycystic ovary syndrome.

OBJECTIVE: Polycystic ovary syndrome (PCOS) is frequently associated with insulin resistance and a consequent increased risk of metabolic diseases. The aim of the present study was to investigate the role of adiponectin in insulin resistance in PCOS women. MATERIALS AND METHODS: Forty-seven patients with PCOS and 23 control subjects, matched for age and body mass index (BMI), were enrolled in the study. Clinical, metabolic and hormonal parameters and adiponectin levels were measured, and HOMA-IR score (homeostasis model assessment-insulin resistance index) was calculated for each subject. RESULTS: There was no difference in adiponectin levels between PCOS patients and the control group. However, adiponectin levels were negatively correlated with obesity-associated parameters and HOMA-IR score in PCOS patients and controls. As adiponectin is modulated by BMI we adjusted for BMI among the PCOS patients, and found a negative correlation between adiponectin levels and HOMA-IR score (r = -0.51, p < 0.001). Adiponectin and BMI were independent determinants of insulin resistance in PCOS patients (adjusted R2 = 0.66, p < 0.001). CONCLUSION: Adiponectin did not seem to be actively involved in the pathogenesis of PCOS. However, adiponectin levels were independently associated with insulin resistance in PCOS patients, suggesting that adiponectin might play a role in the complicated metabolic abnormalities of PCOS.     

多囊卵巢综合征与糖,脂代谢关系的探讨

对多囊卵巢综合征（ＰＣＯＳ）３０例患者，按体重指数（ＢＭＩ）＞２７或＜２４，分为肥胖ＰＣＯＳ组（１７例）及非肥胖ＰＣＯＳ组（１３例）进行糖耐量试验。测定血糖、胰岛素及血脂水平；另选择正常育龄妇女３０例，也按ＢＭＩ分为肥胖对照组（１４例）及非肥胖对照组（１６例）进行对照。结果显示：ＰＣＯＳ患者空腹胰岛素及给糖负荷后的胰岛素水平均较对照组明显升高；且空腹胰岛素水平与睾酮呈显著正相关，说明高胰岛素血症可能是ＰＣＯＳ病因之一。血脂水平，肥胖ＰＣＯＳ及对照组的甘油三脂明显高于非肥胖ＰＣＯＳ及对照组；且甘油三脂与ＢＭＩ呈显著正相关。提示：肥胖ＰＣＯＳ组患者脂代谢改变，可能是肥胖的原因，与ＰＣＯＳ无关。     

Serum resistin and adiponectin levels in women with polycystic ovary syndrome

Aim.?This study was performed to compare the serum levels of resistin and adiponectin in women with polycystic ovary syndrome (PCOS) and normal controls.

Materials and methods.?Seventy-six patients (36 obese, 40 non-obese) with PCOS and 42 healthy subjects were included in the study. Serum levels of resistin, adiponectin, follicle-stimulating hormone, luteinising hormone, dehydroepiandrosterone sulfate (DHEA-S), 17-hydroxy progesterone, free testosterone, androstenedione, glucose, insulin and lipid parameters were measured. Insulin resistance and carbohydrate metabolism were evaluated by using the homeostasis model (HOMA) and the area under the insulin curve (AUCI).

Results.?Plasma resistin levels, HOMA-IR and AUCI were significantly higher and adiponectin level was lower in women with PCOS than those in healthy women. Plasma resistin levels were similar among obese and non-obese women with PCOS. No correlation was observed between resistin, body mass index (BMI), HOMA-IR, AUCI, insulin, lipid parameters and serum androgen levels. In obese PCOS patients, adiponectin levels were lower than in the lean PCOS patients. A negative correlation was observed among adiponectin, HOMA-IR, AUCI, BMI, testosterone, DHEAS, total-cholesterol, LDL-cholesterol and lipoprotein (a) levels.

Conclusion.?These results suggest that the serum adiponectin level may be involved in the pathogenesis of PCOS. But resistin levels were independently associated with insulin resistance and BMI in PCOS patients. Nevertheless, wider-scale trials are required to be performed on this subject.     

Association of betatrophin with metabolic characteristics in overweight/obese and lean women with PCOS

As a new hormone, betatrophin has gained attention as a potential new target to combat insulin resistance (IR) and diabetes. Polycystic ovary syndrome (PCOS) is a common endocrine and metabolic disorder among women of the reproductive age with long term sequelae which include IR and metabolic syndrome. The aim of this study is to evaluate the circulating plasma betatrophin levels in overweight/obese or lean women with or without PCOS and also to elucidate possible correlations with anthropometric and metabolic parameters. Thirty-two patients with PCOS as well as fifty-three control subjects were enrolled after obtaining informed written consent. Clinical and biochemical parameters of all subjects were determined. Plasma adiponectin, GLP-1 and betatrophin levels were measured by ELISA. Plasma betatrophin levels were significantly increased in lean patients with PCOS compared with lean and obese controls. Moreover, in PCOS group, betatrophin levels were significantly negatively correlated with waist hip ratio (WHR), fasting insulin level (FINS) and HOMA-IR, whereas, significantly positively correlated with adiponectin level. Multiple regression analysis showed that HOMA-IR was an independent factor influencing serum betatrophin levels. Further follow-up studies are needed to highlight whether and how increased betatrophin secretion play an important role in IR and carbohydrates metabolism in patients with PCOS.