多囊卵巢综合征患者腹腔液瘦素水平与有关内分泌激素的关系

目的：研究多囊卵巢综合征（PCOS）相关性不孕患者腹腔液和血清中瘦素水平，并探讨瘦素与有关内分泌激素的关系。方法：应用放射免疫法（RIA）测定20例PCOS性不孕患者和20例输卵管性不孕患者腹腔液与血清中瘦素、胰岛素、胰岛素抗体（Ins抗体）、睾酮（T）、雌二醇（E2）及孕酮（P）水平。结果：PCOS组腹腔液中瘦素、胰岛素、T、Ins抗体水平均显著高于对照组（除Ins抗体P=0．01外，其他指标均P〈0．01）。PCOS组血清中瘦素、T显著高于对照组（P〈0．05）。在PCOS患者中，体质量指数（BMI）≥23kg／m^2组患者腹腔液与血清中瘦素、胰岛素、T水平均显著高于BMI〈23kg／m^2组（P〈0．01）。相关分析表明：PCOS患者腹腔液与血清中瘦素水平与BMI，胰岛素，T及Ins抗体呈正相关，与E2呈负相关，与P无明显相关。多元逐步回归分析显示对瘦素水平的影响因素从大到小依次为BMI，胰岛素，T和E2。结论：PCOS患者腹腔液与血清中均存在瘦素水平异常，并伴有胰岛素，T，Ins抗体等的异常，BMI是影响瘦素水平的主要因素。

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OBJECTIVE: To determine whether the infertile patients with polycystic ovarian syndrome (PCOS) is related to dysregulation of peritoneal fluid and serum leptin concentration, and to investigate the relationship between the leptin and some endocrine hormones in PCOS. METHODS: Twenty subjects with PCOS and 20 control women were included in the study. Peritoneal fluid and serum concentration of leptin, insulin, insulin-antibody, testosterone (T), estrogen (E(2)), and progestogen (P) were measured by radioimmunoassay (RIA). RESULTS: Peritoneal fluid concentrations of leptin, insulin, T and insulin-antibody in PCOS patients were significantly higher than those of the control group (P<0.05). There was no statistically significant difference in peritoneal fluid E(2) and P between PCOS and the control group (P>0.05). The serum concentrations of leptin and T in PCOS were significantly higher than those of the control group (P<0.05), but the levels of insulin, E(2), P and insulin-antibody were not significantly different between the 2 groups (P>0.05). With the BMI> or =23 kg/m(2) subgroup in PCOS patients, the peritoneal fluid and serum concentrations of leptin, insulin and T were significantly higher than those of BMI 23 kg/m(2) subgroup (P<0.01). There was no significant difference in E(2)and insulin-antibody between the 2 subgroups (P>0.05). Pearson correlation analysis indicated that peritoneal fluid and serum leptin levels were positively correlated with BMI, insulin, T and insulin-antibody, but negatively correlated with E(2), with no significant correlation with P. Multiple stepwise regression analysis indicated that the factors that influenced the peritoneal fluid and serum leptin levels were BMI, insulin, T and E(2) ordinally. CONCLUSION: Peritoneal fluid and serum leptin concentration and insulin,T, Ins-antibody level are abnormal in PCOS patients. Leptin may play an important role in the pathogenesis of PCOS. BMI is the main factor to correlate with leptin.