Using simple clinical measures to predict insulin resistance or hyperglycemia in girls with polycystic ovarian syndrome.

Using simple clinical measures to predict insulin resistance or hyperglycemia in girls with polycystic ovarian syndrome.
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DOI:
10.1111/pedi.12778
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发表时间:
2018-12
期刊:
影响因子:
3.4
通讯作者:
Nadeau KJ
Nadeau KJ
中科院分区:
医学3区
文献类型:
--
作者:
Cree-Green M;Cai N;Thurston JE;Coe GV;Newnes L;Garcia-Reyes Y;Baumgartner AD;Pyle L;Nadeau KJ

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多囊卵巢综合症 (PCOS) 包括青年时期的胰岛素抵抗 (IR) 和糖耐量受损 (IGT),以及成年后患 2 型糖尿病的风险大大增加。识别 IR 具有挑战性,记录 IGT 需要进行口服葡萄糖耐量测试 (OGTT)。目标:确定一种易于应用于 PCOS 女孩 IR 和 IGT 的替代措施。我们研究了 28 名患有 PCOS 的女孩 [BMI 百分位数 98 (83,99); 15.5(14.5,16.6)岁]和20岁月经正常[BMI百分位(97(88,99);15.5(13.3,16.1)岁]。进行高胰岛素-正常血糖钳夹(胰岛素剂量为80 μU/ml/min)以确定葡萄糖输注率(GIR)和75克OGTT。将 IR(包括空腹胰岛素、HOMA-IR、Matsuda 指数和 eIS)与代孕者和 GIR 或 IGT 之间的 Spearman 相关性进行比较,并进行受试者操作曲线 (ROC) 分析,以预测 PCOS 中 GIR 低于中值或 GIR 较低(12.9±4.6 与 17.1±5.1 mg/kg 无脂体重·分钟;p=0.01)。 HOMA-IR (r=−0.78,p<0.0001)、e-IS (r=0.70,p<0.001) 和 Matsuda (r=0.533,p<0.001) 与 GIR 相关,为识别 IR 提供了良好的灵敏度 (100%) 和特异性 (71%)(e-IS 截止值:<6.3,ROC 面积低于空腹胰岛素 >22 IU/ml 对于 IGT 状态具有最佳的敏感性 (88%)、特异性 (78%) 和 ROC (0.760)。患有 PCOS 的女孩有显着的 IR,并且无需 OGTT 或钳夹即可获得 eIS 和空腹胰岛素,可用于临床指导 PCOS 的治疗。
Polycystic ovarian syndrome (PCOS) includes insulin resistance (IR) and impaired glucose tolerance (IGT) in youth, and a greatly elevated risk of type 2 diabetes in adulthood. Identifying IR is challenging and documenting IGT requires an oral glucose tolerance test (OGTT). Objective: Identify an easily applied surrogate measures for IR and IGT in girls with PCOS. We studied 28 girls with PCOS [BMI percentile 98 (83,99); 15.5 (14.5,16.6) years of age] and 20 with normal menses [BMI percentile (97 (88,99); 15.5 (13.3,16.1) years]. Hyperinsulinemic-euglycemic clamps (insulin dose of 80 μU/ml/min) to determine glucose infusion rate (GIR) and a 75 gram OGTT were performed. Surrogates for IR including fasting insulin, HOMA-IR, Matsuda index and eIS were compared to IGT status and GIR. Spearman correlations were performed between surrogates and GIR or IGT, and receiver operator curve (ROC) analysis to predict GIR below the median or IGT status. GIR was lower in PCOS (12.9±4.6 vs. 17.1±5.1 mg/kg fat free mass·min; p=0.01). Within PCOS, HOMA-IR (r=−0.78, p<0.0001), e-IS (r=0.70, p<0.001), and Matsuda (r=0.533, p<0.001) correlated with GIR. e-IS provided a good sensitivity (100%) and specificity (71%) to identify IR (e-IS cutoff: <6.3, ROC-area under curve=0.898). Fasting insulin >22 IU/ml had the best sensitivity (88%), specificity (78%) and ROC (0.760) for IGT status. Girls with PCOS have significant IR, and IGT is common. Both eIS and fasting insulin are obtainable without an OGTT or clamp and could be used clinically to guide treatment in PCOS.
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