多囊卵巢综合征患者血清脂肪型脂肪酸结合蛋白水平与性激素及血脂的相关性研究

目的探讨多囊卵巢综合征(PCOS)患者血清中脂肪型脂肪酸结合蛋白(FABP)4浓度的变化与性激素及血脂的相关性。方法对29例PCOS患者及14例正常对照组应用ELISA方法检测血清中FABP4水平,化学发光法检测血清中泌乳素、促黄体生成素、卵泡刺激素、雌二醇和睾酮水平,放射免疫法检测血清中雄烯二酮水平;全自动生化分析仪检测血清中甘油三酯、总胆固醇、高密度脂蛋白-胆固醇(HDL-C)、低密度脂蛋白-胆固醇(LDL-C)浓度;分析FABP4与性激素及血脂的关系。结果PCOS组血清FABP4水平明显高于正常对照组(24±15)ng/mlvs(9±8)ng/ml,P<0.01]。单因素相关分析显示,FABP4水平与体重指数(r=0.621,P<0.01)及睾酮(r=0.658,P<0.05)呈正相关,与HDL-C(r=-0.331,P<0.05)呈负相关。偏相关分析显示,FABP4与睾酮(r=0.507,P<0.01)呈正相关,与其他因素无明显相关(P>0.05)。结论PCOS患者血清中FABP4的升高可能与PCOS患者的高雄激素血症有关;FABP4可能参与了PCOS的血脂代谢紊乱以及远期心血管疾病的发生。

Relations of serum adipocyte fatty acid binding protein to sex hormone and lipoproteins in patients with polycystic ovary syndrome

OBJECTIVE: To investigate the relationship of serum adipocyte fatty acid binding protein (FABP4) level with sex hormone and lipoprotein in patients with polycystic ovary syndrome (PCOS). METHODS: Peripheral blood samples were collected from 29 out-patients of PCOS patients, aged 31 +/- 3 with a body mass index (BMI) of (26 +/- 4) kg/m2, and 14 out-patients of infertility, aged (31 +/- 3), with a BMI of (21 +/- 2) kg/m2 as normal controls. ELISA was used to detect the serum FABP4. Serum prolactin, follicle stimulating hormone, luteinizing hormone, estradiol, and testosterone were assayed by chemoluminescence method. Serum androstenedione was assayed by radioimmunity method. And triglycerides, total cholesterol, high density lipoprotein (HDL-C), and low density lipoprotein cholesterol (LDL-C) were measured by automatic biochemistry analyzer. The relations of FABP4 with sex hormone and lipoprotein in patients with PCOS were analyzed. RESULTS: The FABP4 level of the PCOS patients was (24 +/- 15) ng/ml, significantly higher than that of the controls (9 ng/ml +/- 8 ng/ml, P = 0.000). There were no significant differences in serum prolactin, follicle stimulating hormone, luteinizing hormone, estradiol, and testosterone between the 2 groups. Univariate analysis revealed that serum FABP4 level was significantly positively correlated with BMI (r = 0.621, P = 0.000) and testosterone (r = 0.658, P = 0.016), and significantly negatively correlated with HDL-C (r = -0.331, P = 0.030). Partial correlation analysis showed that serum FABP4 level was significantly positively correlated with testosterone (r = 0.507, P = 0.008). CONCLUSION: The increase of serum FABP4 in the PCOS patients may be correlated with the high androgen level. FABP4 is likely to participate in the lipid metabolic.