Association of plasma n-6 polyunsaturated fatty acids with gestational diabetes mellitus in the second trimester
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摘要:
目的 探讨中国西南地区孕妇孕中期血浆n-6多不饱和脂肪酸(polyunsaturated fatty acids, PUFAs)水平与妊娠期糖尿病(gestational diabetes mellitus, GDM)的关联。 方法 本研究基于同济-双流出生队列,于2017-2019年在成都市双流区妇幼保健院围产保健门诊纳入18~40岁的6 143名单胎妊娠孕妇。通过问卷调查收集孕妇基本信息和孕期健康状况,并对其进行体格测量和血液样本收集。根据孕24~28周孕妇75 g口服葡萄糖耐量试验(oral glucose tolerance test, OGTT)结果,选取269名符合GDM诊断标准的孕妇作为病例组。在非GDM的孕妇中按照孕妇年龄(±3岁)、基线孕周(±4周)进行1∶2匹配,选取538名非GDM孕妇作为对照组。采用气相色谱-质谱联用的方法检测孕妇孕中期血浆多种n-6 PUFAs水平。采用多变量校正的条件Logistic回归分析模型评估孕中期血浆各n-6 PUFAs类别和总n-6 PUFAs与GDM患病风险的关联,并利用错误发现率(false discovery rate, FDR)法校正多重检验。采用敏感性分析探讨其稳健性。 结果 807名研究对象的年龄为(27.8±3.9)岁,孕周为(24.8±1.1)周,孕前BMI为(21.5±3.1) kg/m2。孕中期血浆亚油酸(linoleic acid, LA)、γ-亚油酸(gamma-linolenic acid, GLA)、二十碳二烯酸(eicosadienoic acid, EDA)和花生四烯酸(arachidonic acid, AA)水平每增加一个标准差,GDM的患病风险的OR值分别为0.83(95% CI:0.69~0.99, P=0.039)、0.82(95% CI:0.69~0.99, P=0.037)、0.63(95% CI:0.50~0.79, P < 0.001)和1.20(95% CI:1.02~1.42, P=0.032),而多重校正后LA、GLA和AA与GDM患病风险关联无统计学意义(均有P > 0.05)。敏感性分析结果显示EDA与GDM患病风险的关联稳定。 结论 孕中期血浆n-6 PUFAs中EDA与GDM患病风险有关,此结论需进一步在大样本人群中进行验证。 -
关键词:
- n-6多不饱和脂肪酸 /
- 妊娠期糖尿病 /
- 病例对照研究
Abstract:Objective The study aims to explore the association of plasma n-6 polyunsaturated fatty acids (PUFAs) with gestational diabetes mellitus (GDM) in the second trimester of pregnant women in southwest China. Methods In the Tongji-Shuangliu Birth Cohort, 6 143 women with a singleton pregnancy (aged 18-40 years) were enrolled at the clinics of perinatal care in the Shuangliu Maternal and Child Health Care Hospital in Chengdu from 2017 to 2019. Basic information of participants was collected by questionnaire and physical examinations were performed at enrollment, and blood samples were collected in the second trimester. A total of 269 pregnant women were diagnosed as having GDM based on the 75 g oral glucose tolerance test during 24-28 weeks. The GDM cases were matched individually to 538 non-GDM controls at a 1∶2 ratio on maternal age (±3 years) and baseline gestational week (±4 weeks). Plasma n-6 PUFAs were determined by gas chromatography-mass spectrometry in the second trimester. The associations of individual n-6 PUFAs and total n-6 PUFAs with GDM were evaluated using multivariable conditional Logistic regression models, and false discovery rate (FDR) was used for the correction of multiple comparison. Sensitivity analysis was used to test the robustness of the associations. Results Of the 807 participants, maternal age was (27.8±3.9) years, and gestational age was (24.8±1.1) weeks, and pre-pregnancy BMI was (21.5±3.1) kg/m2. Odds ratios (ORs) for GDM in relation to each 1-SD increase in plasma linoleic acid (LA), gamma-linolenic acid (GLA), eicosadienoic acid (EDA), and arachidonic acid (AA) were 0.83 (95% CI: 0.69-0.99, P=0.039), 0.82 (95% CI: 0.69-0.99, P=0.037), 0.63 (95% CI: 0.50-0.79, P < 0.001) and 1.20 (95% CI: 1.02-1.42, P=0.032), respectively; however, the associations of LA, GLA, and AA with GDM became not significant after FDR correction (all P > 0.05). The association of EDA with GDM were robust in sensitivity analyses. Conclusion Plasma EDA in the second trimester was associated with GDM, which needs to be further validated in other populations. -
表 1 GDM组与非GDM组人群基本特征[n(%)]
Table 1. Basic characteristics of GDM group and non-GDM group [n(%)]
基本特征 总计(N=807) GDM (n=269) 非GDM (n=538) P值 基本特征 总计(N=807) GDM (n=269) 非GDM (n=538) P值 孕妇年龄(x±s, 岁) 27.8±3.9 27.9±4.0 27.7±3.8 - 孕中期蔬菜摄入(g/d) 0.112 孕周(x±s, 周) 24.8±1.1 24.8±1.3 24.7±1.0 - 0~50 132(16.4) 42(15.7) 90(16.7) 孕前BMI(x±s, kg/m2) 21.5±3.1 22.2±3.3 21.1±3.0 < 0.001 > 50~100 113(14.0) 32(11.9) 81(15.1) 教育水平 0.763 > 100~150 95(11.8) 25(9.3) 70(13.0) 初中或以下 171(21.2) 58(21.6) 113(21.00) > 150 466(57.8) 169(63.1) 297(55.2) 高中或高职学校 304(37.7) 105(39.0) 199(37.0) 孕中期水果摄入(g/d) 0.775 大专或以上 332(41.1) 106(39.4) 226(42.0) 0~50 51(6.3) 14(5.2) 37(6.9) 吸烟 0.322 > 50~100 95(11.8) 31(11.6) 64(11.9) 过去或现在吸烟 42(5.2) 17(6.3) 25(4.7) > 100~150 42(5.2) 13(4.8) 29(5.4) 从不吸烟 765(94.8) 252(93.7) 513(95.3) > 150 618(76.7) 210(78.4) 408(75.8) 饮酒 0.448 孕中期鸡蛋摄入(个/d) 0.441 过去或现在饮酒 147(18.2) 53(19.7) 94(17.5) 0 99(12.3) 32(11.9) 67(12.4) 从不饮酒 660(81.8) 216(80.3) 444(82.5) 1 654(81.1) 214(79.9) 440(81.8) 孕中期体力活动(x±s, MET-h/周) 125.0±76.1 120.8±79.0 127.1±74.6 0.240 > 1 53(6.6) 22(8.2) 31(5.8) 产次(次) 0.339 FPG(x±s, mmol/L) 4.1±0.5 4.3±0.6 3.9±0.3 < 0.001 ≥1 403(49.9) 140(52.0) 263(48.9) OGTT-1h(x±s, mmol/L) 7.9±2.0 10.0±1.5 6.8±1.4 < 0.001 0 404(50.1) 129(48.0) 275(51.1) OGTT-2h(x±s, mmol/L) 6.9±1.8 8.6±1.6 6.0±1.1 < 0.001 糖尿病家族史 0.013 LA(x±s, %) 21.12±2.78 20.82±2.64 21.28±2.84 0.018 是 60(7.4) 29(10.8) 31(5.8) GLA(x±s, %) 0.09±0.05 0.09±0.04 0.09±0.05 0.034 否 747(92.6) 240(89.2) 507(94.2) EDA(x±s, %) 0.36±0.08 0.34±0.08 0.37±0.08 < 0.001 GDM史 0.001 DGLA(x±s, %) 1.77±0.47 1.74±0.45 1.78±0.48 0.246 是 22(2.7) 15(5.6) 7(1.3) AA(x±s, %) 6.99±1.46 7.16±1.54 6.91±1.42 0.015 否 785(97.3) 254(94.4) 531(98.7) DTA(x±s, %) 0.08±0.03 0.08±0.03 0.08±0.03 0.182 孕中期HbA1c(x±s, %) 4.7±0.3 4.8±0.4 4.6±0.3 < 0.001 总n-6 PUFAs(%) 30.41±2.68 30.22±2.60 30.51±2.72 0.095 孕中期肉类摄入(g/d) 0.819 0~50 553(68.6) 186(69.4) 367(68.2) > 50~100 g/d 202(25.1) 67(25.0) 135(25.1) > 100 g/d 51(6.3) 15(5.6) 36(6.7) 表 2 孕中期血浆多种n-6 PUFAs与GDM关联性分析
Table 2. Correlation analysis between multiple n-6 PUFAs and GDM in second trimester plasma
PUFAs PUFAs四分位组OR(95% CI)值 P趋势值 PFDR值 PUFAs 1-SD P值 PFDR值 Q1 Q2 Q3 Q4 OR(95% CI)值 LA GDM/非GDM 73/136 70/134 76/134 50/134 269/538 模型1 1.00 0.97(0.64~1.47) 1.03(0.68~1.57) 0.67(0.43~1.06) 0.121 0.82(0.70~0.97) 0.018 模型2 1.00 0.98(0.64~ 1.50) 1.10(0.71~1.71) 0.72(0.45~1.15) 0.226 0.84(0.71~1.00) 0.049 模型3 1.00 0.95(0.61~ 1.47) 1.06(0.68~1.67) 0.68(0.41~1.11) 0.190 0.317 0.83(0.69~0.99) 0.039 0.098 GLA GDM/非GDM 93/174 69/104 58/127 49/133 269/538 模型1 1.00 1.26(0.84~1.90) 0.84(0.56~1.26) 0.66(0.43~1.02) 0.022 0.83(0.70~0.99) 0.034 模型2 1.00 1.30(0.85~1.99) 0.83(0.55~1.26) 0.61(0.39~0.96) 0.010 0.82(0.69~0.98) 0.027 模型3 1.00 1.23(0.79~1.90) 0.83(0.54~1.29) 0.61(0.38~0.97) 0.014 0.053 0.82(0.69~0.99) 0.037 0.111 EDA GDM/非GDM 86/138 91/134 54/136 38/130 269/538 模型1 1.00 0.85(0.56~1.29) 0.41(0.24~0.69) 0.27(0.15~0.48) < 0.001 0.56(0.45~0.70) < 0.001 模型2 1.00 0.97(0.63~1.50) 0.46(0.27~0.78) 0.32~0.17~0.59) < 0.001 0.60(0.48~0.75) < 0.001 模型3 1.00 1.01(0.65~1.57) 0.48(0.28~0.83) 0.35(0.19~0.65) < 0.001 0.015 0.63(0.50~0.79) < 0.001 0.015 DGLA GDM/非GDM 64/135 86/139 69/133 50/131 269/538 模型1 1.00 1.29(0.86~1.93) 1.06(0.70~1.61) 0.78(0.49~1.24) 0.196 0.91(0.78~1.07) 0.246 模型2 1.00 1.24(0.82~1.88) 0.90(0.58~1.40) 0.64(0.40~1.05) 0.037 0.84(0.71~1.00) 0.045 模型3 1.00 1.23(0.80~1.89) 0.87(0.56~1.37) 0.64(0.38~1.06) 0.041 0.103 0.84(0.71~1.01) 0.062 0.116 AA GDM/非GDM 61/135 64/134 63/135 81/134 269/538 模型1 1.00 1.06(0.69~1.63) 1.04(0.69~1.59) 1.39(0.90~2.14) 0.146 1.21(1.04~1.41) 0.015 模型2 1.00 1.12(0.72~1.75) 1.06(0.68~1.63) 1.33(0.86~2.08) 0.245 1.21(1.03~1.41) 0.021 模型3 1.00 1.20(0.76~1.89) 1.03(0.66~1.62) 1.34(0.84~2.14) 0.309 0.357 1.20(1.02~1.42) 0.032 0.120 DTA GDM/非GDM 89/161 88/164 56/124 36/89 269/538 模型1 1.00 0.98(0.67~1.42) 0.80(0.53~1.23) 0.71(0.44~1.14) 0.119 0.90(0.77~1.05) 0.182 模型2 1.00 0.98(0.67~1.45) 0.85(0.55~1.32) 0.76(0.46~1.26) 0.243 0.93(0.79~1.09) 0.382 模型3 1.00 0.95(0.64~1.42) 0.78(0.50~1.24) 0.76(0.45~1.27) 0.213 0.290 0.92(0.78~1.09) 0.344 0.469 总n-6 PUFAs GDM/非GDM 74/136 70/133 70/135 55/134 269/538 模型1 1.00 0.93(0.60~1.44) 0.88(0.56~1.39) 0.69(0.42~1.14) 0.142 0.86(0.72~1.03) 0.095 模型2 1.00 0.92(0.59~1.44) 0.91(0.57~1.45) 0.70(0.42~1.17) 0.183 0.87(0.73~1.05) 0.155 模型3 1.00 0.89(0.56~1.42) 0.90(0.55~1.47) 0.67(0.39~1.13) 0.148 0.278 0.85(0.70~1.04) 0.113 0.188 注:模型1未校正; 模型2校正因素为孕妇年龄和孕前BMI; 模型3在模型2基础上增加教育水平、孕周、产次、吸烟、饮酒、体力活动水平、孕妇糖尿病家族史、GDM病史。 表 3 孕中期血浆PUFAs水平与GDM患病风险的敏感性分析
Table 3. Sensitivity analysis of plasma PUFAs level and risk of GDM in the second trimester of pregnancy
PUFAs PUFAs四分位组OR(95% CI)值 P趋势值 PFDR值 PUFAs 1-SD P值 PFDR值 Q1 Q2 Q3 Q4 OR(95% CI)值 LA 1.00 0.87(0.54~1.40) 1.03(0.63~1.68) 0.69(0.40~1.19) 0.270 0.405 0.82(0.67~0.99) 0.041 0.088 GLA 1.00 1.14(0.70~1.86) 0.70(0.43~1.13) 0.59(0.36~0.98) 0.013 0.039 0.79(0.65~0.97) 0.024 0.060 EDA 1.00 1.04(0.64~1.69) 0.41(0.23~0.76) 0.29(0.15~0.58) < 0.001 0.015 0.59(0.46~0.76) < 0.001 0.015 DGLA 1.00 0.86(0.53~1.39) 0.73(0.44~1.21) 0.42(0.24~0.75) 0.003 0.015 0.74(0.60~0.90) 0.003 0.030 AA 1.00 1.19(0.72~1.97) 0.94(0.57~1.53) 1.33(0.79~2.26) 0.437 0.546 1.19(0.99~1.44) 0.063 0.105 DTA 1.00 0.92(0.59~1.43) 0.80(0.48~1.33) 0.76(0.43~1.36) 0.292 0.398 0.92(0.76~1.11) 0.380 0.475 总n-6 PUFAs 1.00 0.90(0.53~1.52) 0.91(0.53~1.57) 0.63(0.35~1.14) 0.144 0.240 0.80(0.64~0.99) 0.043 0.081 注:校正因素为孕妇年龄、教育水平、孕前BMI、孕周、产次、孕期吸烟、孕期饮酒、孕中期体力活动水平、孕妇糖尿病家族史、GDM病史、孕中期血浆HbA1c、孕中期饮食(水果、蔬菜、肉类和鸡蛋摄入量)。 -
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