妊娠期糖尿病视黄醇结合蛋白4与炎症因子、胰岛素抵抗相关分析

目的探讨RBP-4与妊娠期糖尿病患者炎症因子超敏C反应蛋白（hs-CRP）、游离脂肪酸（FFA）及胰岛素抵抗的关系。方法97例就诊产科及内分泌科门诊的妊娠期女性，正常葡萄糖耐量（NGT）组50例、糖耐量异常（IGT）组20例、妊娠期糖尿病组（GDM）组27例，按BMl分为正常体重组（NW）42例及超重／肥胖组（OW／OB）55例。用ELISA测定血清RBP-4。全自动生化仪检测hs-CRP．游离脂肪酸（FFA）、甘油三酯（TG）、总胆固醇（TC）；化学发光法检测胰岛素。结果IGT组、GDM组In（HOMA—IR）、FFA、ln（hs-CRP）均高于NGT组（P〈0．05），OW／OB组的FFA[（0．90±0．31）mmol／LVS（0．71±0．28）mmol／L，t=2．73，P〈0．05j、ln（hs-CRP）（0．62±1．00VS-0．17±1．07，t=2．90，P〈0．05）、In（HOMA-IR）、lnRBP（0．56±0．27VS0．30±0．14，t=2．86，P〈0．05）高于NW组，差异有统计学意义。单因素简单相关分析显示，GDM组与OW／OR组中，lnRBP-4与FFA及In（hs-CRP）均呈正相关（r=0．23I，0．237，0．371，O．247，P〈0．05）。而NGT、IGT组及NW组lnRBP-4与FFA、In（hs-CRP）无相关。NGT组、OW／OB组InRBP-4与1n（HOMA-IR）呈正相关（r=oJ276，0．290，P〈oJ05）。IGT组、GDM组及NW组InRBP-4与In（HOMA-IR）均无相关。逐步多元线性回归分析显示，ln（hs-CRP）、FFA、In（HOMA．IR）均非lnRBP-4的独立影响因素。结论在GDM患者中，RBP-4可作为一种新的炎症标志物。

The relationship between serum retinol binding protein 4 and inflammatory factors,insulin resistance in patients with Gestational diabetes mellitus

Objective To investigate the relationships between serum concentration of RBP-4 and inflammatory factors,insulin resistance in patients with gestational diabetes mellitus.Methods 20 patients newly diagnosed with impaired glucose tolerance (IGT),27 patients newly diagnosed with gestational diabetes mellitus(GDM) and 50 subjects with normal glucose tolerance(NGT) were enrolled in this cross-sectional study.Additionally,another subset analysis was performed,subjects were divided on the basis of BMI into normal weight (NW) and overweight or obesity (OW/OB).Serum RBP-4 was measured with ELISA;serum concentrations of hs-CRP,free fatty acids (FFA),triglyeride(TG),total cholesterol (TC) and insulin were measured in fasting status.Insulin resistance was assessed by HOMA-IR.Results Ln(HOMA-IR) and the concentrations of FFA,ln(hs-CRP) in IGT or in GDM were significantly higher than that of NGT(P＜0.05).In the group of OW/OB,FFA[(0.90±0.31)mmol/L vs (0.71±0.28)mmol/L,t＝2.73,P＜0.05)],ln(hs-CRP)(0.62±1.00 vs -0.17±1.07,t＝2.90,P＜0.05),ln(HOMA-IR),lnRBP(0.56±0.27 vs 0.30±0.14,t＝2.86,P＜0.05)were significantly higher than that of NW.In the group of GDM,lnRBP-4 showed a positive relationship with FFA (r＝0.231,P＜0.05)and ln(hs-CRP) (r＝0.237,P＜0.05).There was a positive relationship between lnRBP-4 and FFA(r＝0.371,P＜0.05) or ln(hs-CRP)(r＝0.247,P＜0.05) in the group of OW/OB,but no association in the group of NGT,IGT or NW.There was no relationship between lnRBP-4 and ln(HOMA-IR) in IGT,GDM and NW,while in the group of NGT and OW/OB,lnRBP-4 showed a positive relationship with ln(HOMA-IR) (r＝0.276,0.290,P＜0.05).In a multiple linear regression analysis,ln(hs-CRP),FFA or ln(HOMA-IR) was not the independent factor of lnRBP-4 in any group.Conclusions In patients with gestational diabetes mellitus,lnRBP-4 may be a new marker of inflammation.