Article(id=1321169717214167208, tenantId=1146029695717560320, journalId=1319373219989389464, issueId=1321169668631548508, articleNumber=null, orderNo=null, doi=10.11847/zgggws1147413, pmid=null, cstr=null, oa=null, hot=null, price=null, onlineType=0, articleFormat=0, articleType=null, articleTypeStr=null, receivedDate=1742140800000, receivedDateStr=2025-03-17, revisedDate=1749657600000, revisedDateStr=2025-06-12, acceptedDate=1754064000000, acceptedDateStr=2025-08-02, onlineDate=1792921006730, onlineDateStr=2026-10-25, pubDate=1757433600000, pubDateStr=2025-09-10, doiRegisterDate=null, doiRegisterDateStr=null, onlineIssueDate=1792921006730, onlineIssueDateStr=2026-10-25, onlineJustAcceptDate=null, onlineJustAcceptDateStr=null, onlineFirstDate=null, onlineFirstDateStr=null, sourceXml=null, magXml=null, createTime=1792921006730, creator=13701087609, updateTime=1792921006730, updator=13701087609, issue=Issue{id=1321169668631548508, tenantId=1146029695717560320, journalId=1319373219989389464, year='2025', volume='41', issue='9', pageStart='1025', pageEnd='1152', issueExtLink='null', onlineDate='null', pubDate='1757433600000', pubDateStr='2025-09-10', beforeIssueId=null, nextIssueId=null, price=null, status=1, issueComplete=1, articleOrder=1, issueType=-1, specialIssue=null, createTime=1792920995147, creator='13701087609', updateTime=1792920995147, updator='13701087609', preIssue=null, nextIssue=null, articleTotal=null, ext=null, issueFiles=null, downloadFileDto=null}, startPage=1091, endPage=1098, ext={EN=ArticleExt(id=1321169717465825449, articleId=1321169717214167208, tenantId=1146029695717560320, journalId=1319373219989389464, language=EN, title=Chain-mediated effects of TyG-BMI and RBP on the risk of fetal distress caused by stressful life events in late pregnancy:a follow-up study, columnId=1320427696342020970, journalTitle=Chinese Journal of Public Health, columnName=Epidemiological Research, runingTitle=null, highlight=null, articleAbstract=
Objective

To investigate the roles of triglyceride glucose-body mass index (TyG-BMI) and retinol-binding protein (RBP) in the occurrence of fetal distress due to exposure to stressful life events in late pregnancy.

Methods

From December 2021 to June 2023, a cohort of 482 women in late pregnancy was recruited from the General Hospital of Ningxia Medical University. A self-designed questionnaire was employed to collect data of general maternal health. The Pregnancy Life Events Scale was adopted to quantify stressful life events, and blood samples were collected for metabolic biomarker measurement. Participants were followed through delivery, and the obstetric outcomes were recorded. R 4.3.0 was used for descriptive statistics, LASSO regression analysis, binary logistic regression analysis, and Spearman correlation analysis. A chain-mediated effect model was constructed in SPSS AU to evaluate the associations of exposure to stressful life events in late pregnancy, TyG-BMI, and RBP with fetal distress. Sensitivity analyses were performed to assess the robustness of the findings.

Results

The incidence of exposure to stressful life events among women in late pregnancy was 31.54%, and that of fetal distress was 13.07%. Stressful life events, RBP, TyG-BMI, and anxiety were significant predictors of fetal distress. Logistic regression results showed that pregnant women exposed to stressful life events had a 2.10-fold higher risk of fetal distress compared with those without exposure (OR = 2.10, 95%CI: 1.06–4.16). For every one-unit increase in TyG-BMI, the risk of fetal distress increased by 1% (OR = 1.01, 95%CI: 1.01–1.02). For every 1 mg/L increase in RBP, the risk of fetal distress decreased by 5% (OR = 0.95, 95%CI: 0.92–0.98), indicating that RBP may have a protective effect against fetal distress. Spearman correlation analysis revealed a positive correlation between TyG-BMI and RBP (r = 0.177, P < 0.001). Chain-mediate effect analysis showed that TyG-BMI had a complete mediating effect on the impact of stressful life events on fetal distress through RBP, with a total indirect effect value of −0.001.

Conclusions

Exposure to stressful life events in late pregnancy has a complete mediating effect on fetal distress through TyG-BMI and RBP, and RBP may play a protective role between insulin resistance in late pregnancy and fetal distress.

, authors=Hao WANG1, 2, Wenjiong LIANG3, Zexin YU1, 2, Chunyan WANG1, 2, Shuqin MA3, Suzhen GUAN1, 2, authorsList=Hao WANG, Wenjiong LIANG, Zexin YU, Chunyan WANG, Shuqin MA, Suzhen GUAN, authorCompany=null, correspAuthors=Suzhen GUAN, authorNote=null, correspAuthorsNote=
GUAN Suzhen, E-mail:
, copyrightStatement=Copyright © 2025 Chinese Journal of Public Health. All rights reserved., copyrightOwner=null, extLink=null, articleAbsUrl=null, sourceXml=null, magXml=null, pdfUrl=null, pdf=null, pdfFileSize=null, pdfExtLink=null, richHtmlUrl=null, mobilePdfUrl=null, reviewReport=null, pdfFirstPage=null, abstractGraph=null, abstractGraphContent=null, abstractVideo=null, citation=null, cebUrl=null, magXmlContent=null, mapNumber=null, fund=null), CN=ArticleExt(id=1321169718266937516, articleId=1321169717214167208, tenantId=1146029695717560320, journalId=1319373219989389464, language=CN, title=孕晚期应激性生活事件致胎儿窘迫风险及TyG-BMI和RBP的链式中介作用, columnId=1320427696509793132, journalTitle=中国公共卫生, columnName=流行病学研究, runingTitle=null, highlight=null, articleAbstract=
目的

探讨代谢指标甘油三酯葡萄糖–体质量指数(triglyceride glucose-body mass index, TyG-BMI)和视黄醇结合蛋白(retinol binding protein, RBP)在妊娠晚期应激性生活事件暴露致胎儿窘迫发生中的作用。

方法

于2021年12月—2023年6月,从宁夏医科大学总医院招募482名妊娠晚期孕妇,通过自编问卷收集孕妇一般情况,用“孕期生活事件量表”收集应激性生活事件发生情况,采集血液样本进行血代谢指标测量;并随访至分娩,收集其分娩信息;采用R 4.3.0对数据进行描述性统计分析、LASSO回归分析、二元logistic回归分析和Spearman相关性分析;并通过SPSS AU建立链式中介效应模型评估妊娠晚期应激性生活事件暴露、TyG-BMI指数和RBP与胎儿窘迫之间的关系。利用敏感性分析进行结果稳健性分析。

结果

妊娠晚期孕妇经历过应激性生活事件的发生率为31.54%,胎儿窘迫发生率为13.07%。应激性生活事件、RBP、TyG-BMI和焦虑是胎儿窘迫的显著预测因子。logistic回归结果显示,经历过应激性生活事件的孕妇发生胎儿窘迫的风险是未发生孕妇的2.10倍(OR=2.10,95%CI=1.06~4.16);TyG-BMI每增加1个单位,胎儿窘迫发生的风险增加1%(OR=1.01,95%CI=1.01~1.02);RBP每增加1 mg/L,胎儿窘迫发生的风险降低5%(OR=0.95,95%CI=0.92~0.98),表明RBP可能对胎儿窘迫具有保护作用。Spearman相关分析结果显示,TyG-BMI与RBP之间呈现显著的正相关(r=0.177,P<0.001);链式中介效应分析表明,TyG-BMI通过RBP在应激性生活事件对胎儿窘迫的影响具有完全中介效应,总间接效应值为–0.001。

结论

妊娠晚期生活事件暴露通过TyG-BMI和RBP介导对胎儿窘迫的完全中介作用,RBP可能在孕晚期胰岛素抵抗与胎儿窘迫之间起到了保护作用。

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王昊(1999—),硕士在读,研究方向:劳动卫生与环境卫生学

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关素珍,E-mail:
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companyList=[AuthorCompany(id=1321169718636036269, tenantId=1146029695717560320, journalId=1319373219989389464, articleId=1321169717214167208, xref=1, ext=[AuthorCompanyExt(id=1321169718652813486, tenantId=1146029695717560320, journalId=1319373219989389464, articleId=1321169717214167208, companyId=1321169718636036269, language=EN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=1School of Public Health, Ningxia Medical University, Yinchuan 750004, China), AuthorCompanyExt(id=1321169718673785007, tenantId=1146029695717560320, journalId=1319373219989389464, articleId=1321169717214167208, companyId=1321169718636036269, language=CN, country=null, province=null, city=null, postcode=null, companyName=null, departmentName=null, remark=1宁夏医科大学公共卫生学院,银川 750004)]), AuthorCompany(id=1321169720447975600, tenantId=1146029695717560320, journalId=1319373219989389464, articleId=1321169717214167208, xref=2, 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journalId=1319373219989389464, articleId=1321169717214167208, language=CN, label=图1, caption=TyG-BMI和RBP作为中介变量在孕晚期生活事件与胎儿窘迫关系中的分析

注:图上标注的值为对应路径的效应值;路径1:应激性生活事件→ 胎儿窘迫;路径2:应激性生活事件→ TyG-BMI→ 胎儿窘迫;路径3:应激性生活事件→ RBP→ 胎儿窘迫;路径4:应激性生活事件→ TyG-BMI→ RBP→ 胎儿窘迫。

, figureFileSmall=Lb4k6+JGxtr+bchdxntjJg==, figureFileBig=h5u2kSq5s5hlWVrh9S8txg==, tableContent=null), ArticleFig(id=1321169725489529062, tenantId=1146029695717560320, journalId=1319373219989389464, articleId=1321169717214167208, language=EN, label=Tab.1, caption=

Univariate analysis of fetal distress and stressful life events in late pregnancy

, figureFileSmall=null, figureFileBig=null, tableContent=
特征总人数应激性生活事件χ2值P值胎儿窘迫χ2值P值
人数构成比/%人数构成比/%
胎儿性别0.680.4104.550.033
 男性2698958.554368.25
 女性2136341.452031.75
年龄/岁1.030.3114.300.038
 <353239763.823555.56
 ≥351595536.182844.44
学历15.460.0010.580.900
 初中及以下462315.1369.52
 高中/中专622516.45711.11
 大专/本科3389965.134469.84
 研究生及以上3653.2969.52
职业22.05<0.0011.650.649
 无业1105032.891523.81
 农民/工人1053.2900.00
 企、事业单位/行政机关1964126.972742.86
 其他1665636.842133.33
受孕方式1.660.1980.640.425
 人工授精31138.5569.52
 自然受孕45113991.455790.48
居住地4.090.0432.210.137
 农村582516.4546.35
 城市42412783.555993.65
性格3.980.1361.220.544
 内向431811.8469.52
 偏中35411374.344977.78
 外向852113.82812.70
早孕反应程度0.180.9132.930.231
 较轻1805536.182539.68
 尚可2026442.113047.62
 较重1003321.71812.70
妊娠意愿14.70<0.0011.510.471
 充分准备1905334.872946.03
 顺其自然2146039.472641.27
 意外妊娠783925.66812.70
孕前身体状况<0.0010.102
 较好3308354.614774.60
 一般1506844.741523.81
 较差210.6611.59
基础疾病0.2420.858
 无43313286.845993.65
 高血压631.9700.00
 糖尿病821.3211.59
 甲状腺疾病2595.9234.76
 其他1063.9500.00
孕期体重增长0.200.9040.070.968
 低1183925.661625.40
 正常1123422.371523.81
 高2527951.973250.79
焦虑19.32<0.0014.150.042
 无3157851.323453.97
 有1677448.682946.03
抑郁24.49<0.0011.450.484
 无2014026.322641.27
 轻微2409159.873453.97
 有412113.8234.76
家庭关怀指数19.96<0.0011.790.408
 良好13106.5834.76
 中度障碍994126.971523.81
 严重障碍37010166.454571.43
应激性生活事件4.300.038
 无3657.14
 有2742.86
胎儿窘迫4.300.038
 无41912582.24
 有632717.76
), ArticleFig(id=1321169725619552487, tenantId=1146029695717560320, journalId=1319373219989389464, articleId=1321169717214167208, language=CN, label=表1, caption=

妊娠晚期孕妇胎儿窘迫和应激性生活事件单因素分析

, figureFileSmall=null, figureFileBig=null, tableContent=
特征总人数应激性生活事件χ2值P值胎儿窘迫χ2值P值
人数构成比/%人数构成比/%
胎儿性别0.680.4104.550.033
 男性2698958.554368.25
 女性2136341.452031.75
年龄/岁1.030.3114.300.038
 <353239763.823555.56
 ≥351595536.182844.44
学历15.460.0010.580.900
 初中及以下462315.1369.52
 高中/中专622516.45711.11
 大专/本科3389965.134469.84
 研究生及以上3653.2969.52
职业22.05<0.0011.650.649
 无业1105032.891523.81
 农民/工人1053.2900.00
 企、事业单位/行政机关1964126.972742.86
 其他1665636.842133.33
受孕方式1.660.1980.640.425
 人工授精31138.5569.52
 自然受孕45113991.455790.48
居住地4.090.0432.210.137
 农村582516.4546.35
 城市42412783.555993.65
性格3.980.1361.220.544
 内向431811.8469.52
 偏中35411374.344977.78
 外向852113.82812.70
早孕反应程度0.180.9132.930.231
 较轻1805536.182539.68
 尚可2026442.113047.62
 较重1003321.71812.70
妊娠意愿14.70<0.0011.510.471
 充分准备1905334.872946.03
 顺其自然2146039.472641.27
 意外妊娠783925.66812.70
孕前身体状况<0.0010.102
 较好3308354.614774.60
 一般1506844.741523.81
 较差210.6611.59
基础疾病0.2420.858
 无43313286.845993.65
 高血压631.9700.00
 糖尿病821.3211.59
 甲状腺疾病2595.9234.76
 其他1063.9500.00
孕期体重增长0.200.9040.070.968
 低1183925.661625.40
 正常1123422.371523.81
 高2527951.973250.79
焦虑19.32<0.0014.150.042
 无3157851.323453.97
 有1677448.682946.03
抑郁24.49<0.0011.450.484
 无2014026.322641.27
 轻微2409159.873453.97
 有412113.8234.76
家庭关怀指数19.96<0.0011.790.408
 良好13106.5834.76
 中度障碍994126.971523.81
 严重障碍37010166.454571.43
应激性生活事件4.300.038
 无3657.14
 有2742.86
胎儿窘迫4.300.038
 无41912582.24
 有632717.76
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Comparison of blood metabolic indicators between fetal distress and normal groups

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代谢指标正常组胎儿窘迫组Z值P值
MQ1~Q3MQ1~Q3
TC/(mmol/L)5.675.00~6.635.634.80~6.84−0.240.808
TG/(mmol/L)2.882.15~3.752.852.14~3.75−0.070.947
HDL/(mmol/L)1.721.48~2.001.621.46~1.96−0.980.328
LDL/(mmol/L)3.232.76~3.903.092.65~4.03−0.130.896
GLU/(mmol/L)3.933.58~4.364.073.66~4.54−1.540.122
LPa/(mg/L)96.0049.00~253.50119.0047.50~256.50−0.400.692
APOA/(g/L)2.211.99~2.412.222.03~2.42−0.050.964
APOB/(g/L)1.251.07~1.481.241.05~1.500.000.997
APOE/(mg/L)46.0938.30~56.5547.6041.47~59.19−1.360.175
H-Crp/(mg/L)2.701.60~4.603.101.50~6.20−0.910.365
RBP/(mg/L)41.5535.89~48.1738.3231.79~43.06−3.070.002
TG/HDL3.702.65~5.323.962.84~5.48−0.380.703
TyG-BMI236.67215.42~262.31252.52226.98~275.83−1.990.046
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胎儿窘迫与正常组代谢指标比较

, figureFileSmall=null, figureFileBig=null, tableContent=
代谢指标正常组胎儿窘迫组Z值P值
MQ1~Q3MQ1~Q3
TC/(mmol/L)5.675.00~6.635.634.80~6.84−0.240.808
TG/(mmol/L)2.882.15~3.752.852.14~3.75−0.070.947
HDL/(mmol/L)1.721.48~2.001.621.46~1.96−0.980.328
LDL/(mmol/L)3.232.76~3.903.092.65~4.03−0.130.896
GLU/(mmol/L)3.933.58~4.364.073.66~4.54−1.540.122
LPa/(mg/L)96.0049.00~253.50119.0047.50~256.50−0.400.692
APOA/(g/L)2.211.99~2.412.222.03~2.42−0.050.964
APOB/(g/L)1.251.07~1.481.241.05~1.500.000.997
APOE/(mg/L)46.0938.30~56.5547.6041.47~59.19−1.360.175
H-Crp/(mg/L)2.701.60~4.603.101.50~6.20−0.910.365
RBP/(mg/L)41.5535.89~48.1738.3231.79~43.06−3.070.002
TG/HDL3.702.65~5.323.962.84~5.48−0.380.703
TyG-BMI236.67215.42~262.31252.52226.98~275.83−1.990.046
), ArticleFig(id=1321169725846044906, tenantId=1146029695717560320, journalId=1319373219989389464, articleId=1321169717214167208, language=EN, label=null, caption=null, figureFileSmall=null, figureFileBig=null, tableContent=
变量模型1模型2模型3
OR值95%CIP值OR值95%CIPOR值95%CIP值
应激性生活事件
 无1.001.001.00
 有1.941.04 ~3.640.0382.011.04 ~3.890.0382.101.06 ~4.160.034
胎儿性别
 男性1.001.001.00
 女性0.520.28 ~0.960.0370.570.30 ~1.060.0760.620.33 ~1.160.133
RBP0.960.94 ~0.990.0060.960.94 ~0.990.0050.950.92 ~0.980.004
TyG-BMI1.011.01 ~1.020.0181.011.01 ~1.020.0311.011.01 ~1.020.029
年龄/岁
 <351.001.001.00
 ≥351.610.88 ~2.950.1201.580.83 ~2.990.1641.480.77 ~2.860.238
焦虑
 无1.001.001.00
 有1.730.95 ~3.150.0731.931.03 ~3.590.0402.081.09 ~3.930.025
), ArticleFig(id=1321169725934125291, tenantId=1146029695717560320, journalId=1319373219989389464, articleId=1321169717214167208, language=CN, label=表3, caption=

应激性生活事件与胎儿窘迫发生关联的logistic回归分析

, figureFileSmall=null, figureFileBig=null, tableContent=
变量模型1模型2模型3
OR值95%CIP值OR值95%CIPOR值95%CIP值
应激性生活事件
 无1.001.001.00
 有1.941.04 ~3.640.0382.011.04 ~3.890.0382.101.06 ~4.160.034
胎儿性别
 男性1.001.001.00
 女性0.520.28 ~0.960.0370.570.30 ~1.060.0760.620.33 ~1.160.133
RBP0.960.94 ~0.990.0060.960.94 ~0.990.0050.950.92 ~0.980.004
TyG-BMI1.011.01 ~1.020.0181.011.01 ~1.020.0311.011.01 ~1.020.029
年龄/岁
 <351.001.001.00
 ≥351.610.88 ~2.950.1201.580.83 ~2.990.1641.480.77 ~2.860.238
焦虑
 无1.001.001.00
 有1.730.95 ~3.150.0731.931.03 ~3.590.0402.081.09 ~3.930.025
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王昊 1, 2 , 梁文炯 3 , 于泽鑫 1, 2 , 王春艳 1, 2 , 马淑琴 3 , 关素珍 1, 2, *, *
中国公共卫生 | 流行病学研究 2025,41(9): 1091-1098
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中国公共卫生 |流行病学研究 2025 , 41 (9) : 1091 -1098
孕晚期应激性生活事件致胎儿窘迫风险及TyG-BMI和RBP的链式中介作用
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王昊(1999—),硕士在读,研究方向:劳动卫生与环境卫生学

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王昊1, 2, 梁文炯3, 于泽鑫1, 2, 王春艳1, 2, 马淑琴3, 关素珍1, 2, *, *
作者信息
  • 1宁夏医科大学公共卫生学院,银川 750004
  • 2宁夏环境因素与慢性病控制重点实验室,银川 750004
  • 3宁夏医科大学总医院,银川 750004
通讯作者:
关素珍,E-mail:
作者简介:

王昊(1999—),硕士在读,研究方向:劳动卫生与环境卫生学

Chain-mediated effects of TyG-BMI and RBP on the risk of fetal distress caused by stressful life events in late pregnancy:a follow-up study
Hao WANG1, 2, Wenjiong LIANG3, Zexin YU1, 2, Chunyan WANG1, 2, Shuqin MA3, Suzhen GUAN1, 2
Affiliations
  • 1School of Public Health, Ningxia Medical University, Yinchuan 750004, China
  • 2Ningxia Key Laboratory of Environmental Factors and Chronic Disease Control, Yinchuan 750004, China
  • 3General Hospital of Ningxia Medical University, Yinchuan 750004, China
  • Corresponding Author:
    GUAN Suzhen, E-mail:
出版时间: 2025-09-10 doi: 10.11847/zgggws1147413
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目的

探讨代谢指标甘油三酯葡萄糖–体质量指数(triglyceride glucose-body mass index, TyG-BMI)和视黄醇结合蛋白(retinol binding protein, RBP)在妊娠晚期应激性生活事件暴露致胎儿窘迫发生中的作用。

方法

于2021年12月—2023年6月,从宁夏医科大学总医院招募482名妊娠晚期孕妇,通过自编问卷收集孕妇一般情况,用“孕期生活事件量表”收集应激性生活事件发生情况,采集血液样本进行血代谢指标测量;并随访至分娩,收集其分娩信息;采用R 4.3.0对数据进行描述性统计分析、LASSO回归分析、二元logistic回归分析和Spearman相关性分析;并通过SPSS AU建立链式中介效应模型评估妊娠晚期应激性生活事件暴露、TyG-BMI指数和RBP与胎儿窘迫之间的关系。利用敏感性分析进行结果稳健性分析。

结果

妊娠晚期孕妇经历过应激性生活事件的发生率为31.54%,胎儿窘迫发生率为13.07%。应激性生活事件、RBP、TyG-BMI和焦虑是胎儿窘迫的显著预测因子。logistic回归结果显示,经历过应激性生活事件的孕妇发生胎儿窘迫的风险是未发生孕妇的2.10倍(OR=2.10,95%CI=1.06~4.16);TyG-BMI每增加1个单位,胎儿窘迫发生的风险增加1%(OR=1.01,95%CI=1.01~1.02);RBP每增加1 mg/L,胎儿窘迫发生的风险降低5%(OR=0.95,95%CI=0.92~0.98),表明RBP可能对胎儿窘迫具有保护作用。Spearman相关分析结果显示,TyG-BMI与RBP之间呈现显著的正相关(r=0.177,P<0.001);链式中介效应分析表明,TyG-BMI通过RBP在应激性生活事件对胎儿窘迫的影响具有完全中介效应,总间接效应值为–0.001。

结论

妊娠晚期生活事件暴露通过TyG-BMI和RBP介导对胎儿窘迫的完全中介作用,RBP可能在孕晚期胰岛素抵抗与胎儿窘迫之间起到了保护作用。

应激性生活事件  /  胎儿窘迫  /  甘油三酯葡萄糖–体质量(TyG-BMI)  /  视黄醇结合蛋白(RBP)  /  妊娠晚期  /  宁夏回族自治区
Objective

To investigate the roles of triglyceride glucose-body mass index (TyG-BMI) and retinol-binding protein (RBP) in the occurrence of fetal distress due to exposure to stressful life events in late pregnancy.

Methods

From December 2021 to June 2023, a cohort of 482 women in late pregnancy was recruited from the General Hospital of Ningxia Medical University. A self-designed questionnaire was employed to collect data of general maternal health. The Pregnancy Life Events Scale was adopted to quantify stressful life events, and blood samples were collected for metabolic biomarker measurement. Participants were followed through delivery, and the obstetric outcomes were recorded. R 4.3.0 was used for descriptive statistics, LASSO regression analysis, binary logistic regression analysis, and Spearman correlation analysis. A chain-mediated effect model was constructed in SPSS AU to evaluate the associations of exposure to stressful life events in late pregnancy, TyG-BMI, and RBP with fetal distress. Sensitivity analyses were performed to assess the robustness of the findings.

Results

The incidence of exposure to stressful life events among women in late pregnancy was 31.54%, and that of fetal distress was 13.07%. Stressful life events, RBP, TyG-BMI, and anxiety were significant predictors of fetal distress. Logistic regression results showed that pregnant women exposed to stressful life events had a 2.10-fold higher risk of fetal distress compared with those without exposure (OR = 2.10, 95%CI: 1.06–4.16). For every one-unit increase in TyG-BMI, the risk of fetal distress increased by 1% (OR = 1.01, 95%CI: 1.01–1.02). For every 1 mg/L increase in RBP, the risk of fetal distress decreased by 5% (OR = 0.95, 95%CI: 0.92–0.98), indicating that RBP may have a protective effect against fetal distress. Spearman correlation analysis revealed a positive correlation between TyG-BMI and RBP (r = 0.177, P < 0.001). Chain-mediate effect analysis showed that TyG-BMI had a complete mediating effect on the impact of stressful life events on fetal distress through RBP, with a total indirect effect value of −0.001.

Conclusions

Exposure to stressful life events in late pregnancy has a complete mediating effect on fetal distress through TyG-BMI and RBP, and RBP may play a protective role between insulin resistance in late pregnancy and fetal distress.

stressful life events  /  fetal distress  /  triglyceride-glucose body mass index (TyG-BMI)  /  retinol-binding protein (RBP)  /  late pregnancy  /  Ningxia hui autonomous region
王昊, 梁文炯, 于泽鑫, 王春艳, 马淑琴, 关素珍. 孕晚期应激性生活事件致胎儿窘迫风险及TyG-BMI和RBP的链式中介作用. 中国公共卫生, 2025 , 41 (9) : 1091 -1098 . DOI: 10.11847/zgggws1147413
Hao WANG, Wenjiong LIANG, Zexin YU, Chunyan WANG, Shuqin MA, Suzhen GUAN. Chain-mediated effects of TyG-BMI and RBP on the risk of fetal distress caused by stressful life events in late pregnancy:a follow-up study[J]. Chinese Journal of Public Health, 2025 , 41 (9) : 1091 -1098 . DOI: 10.11847/zgggws1147413
孕产期是女性身体和心理易受伤害的特殊阶段,与女性受孕及分娩前后体内激素水平改变引起心理变化有很大关系。孕晚期胰岛素抵抗(insulin resistance, IR)可引发脂质代谢紊乱,促使甘油三酯和胆固醇水平升高,而脂质异常蓄积形成的炎症反应和氧化应激又会加剧IR,形成恶性循环[1]。此阶段暴露于家庭关系变化等应激性生活事件(stressful life events, SLE)不仅会加重孕产妇不良心理压力,还会产生代谢紊乱现象,诸如IR和脂质代谢异常[2]。根据健康和疾病发育起源学说[3],孕期的心理困扰、应激性生活事件暴露等不利因素会致子代不良妊娠结局增多,如低出生体重、早产和宫内发育迟缓等[4–5],甚至通过影响母体生理学来影响儿童远期精神健康[6]。胎儿窘迫(fetal distress)是围生期新生儿死亡和致残的主要原因[7],发生率为2.7%~38.5%[8],其发生机制与母体代谢改变的关系尚未明确。甘油三酯葡萄糖–体质量指数(triglyceride glucose-body mass index, TyG-BMI)是结合了甘油三酯–葡萄糖指数和体质量指数的一种复合指标,旨在提供一种更全面的方法来评估代谢健康状况,该指数与IR相关,而产前SLE与胎儿窘迫的关系及母体代谢改变在其中的作用并未得到大量关注。本研究通过前瞻性分析TyG-BMI等代谢指标在孕晚期SLE与胎儿窘迫间的中介效应,为早期干预提供理论依据。
于2021年12月—2023年6月,从宁夏医科大学总医院产科门诊,按照年龄为18~45岁、单胎和无阅读沟通障碍的纳入标准,选择常规产检的550名孕晚期孕妇(孕期≥28周)进入研究队列。排除存在认知缺陷、患有严重的心脏、肝脏或肾脏疾病以及血样缺失的孕妇,最终获得482名孕晚期孕妇的完整数据,有效回收率为87.6%。所有参与研究的孕妇均在充分了解研究目的、方法和潜在风险后,自愿签署了知情同意书,本研究已获得宁夏医科大学伦理委员会批准(批准号:宁医大伦理第2022-G007号)。
于每个工作日在胎监室进行问卷调查和流行病学随访,综合收集产妇的基本特征和围生期结局信息。问卷内容包括社会人口学特征、围生期健康状况、生活方式以及孕期心理状况调查。其中,性格、妊娠意愿、早孕反应程度、孕前身体状况的判定标准主要依据孕妇自报进行评估;基础疾病判定标准基于孕妇确诊的既往病史,由孕妇自行填写;孕期体重增长判定标准则依据《中国妇女妊娠期体重监测与评价》推荐值,根据不同孕前体质量指数(body mass index, BMI)对孕期体重增长进行分类评价,具体量化标准及数值如下:孕前体重正常(BMI≥18.5 kg/m2且<24.0 kg/m2)的孕妇,孕晚期体重增长值范围为 6.5~7.0 kg;孕前体重消瘦(BMI<18.5 kg/m2)的孕妇,孕晚期体重增长值范围为 7~9 kg;孕前超重或肥胖(BMI≥24.0 kg/m2)的孕妇,孕晚期体重增长值范围为 3~5 kg。依据上述孕期体重增长推荐范围,将孕期体重增长情况分类评价为低(孕期体重增长低于推荐范围的最低值)、正常(孕期体重增长在推荐范围之内)、高(孕期体重增长超过推荐范围的最高值)[9]。
由肖利敏等[10]在2010年根据中国孕妇的特点编制而成。量表包含13个条目,3个分量表:关注自己、担心胎儿健康和担心分娩,每个条目根据实际情况可选择“没有担心”“偶尔担心”“经常担心”“一直担心”4个选项,分别赋分为1、2、3、4分。满分52分,得分越高,妊娠相关焦虑风险越大。总得分>P75为有妊娠相关焦虑,以24分为临界值,≥24分为阳性,表示存在妊娠相关焦虑;<24分为阴性,表示无焦虑[11]。总量表及分量表的Cronbach′s α系数(0.81、0.64、0.78、0.74)和重测信度系数(0.79、0.67、0.75、0.7)表明其具有较好的信度和效度。
该量表在20世纪90年代开始在国内广泛用于产后抑郁筛查[12]。EPDS共包含10个条目,条目可以进一步划分为情感(共2条)、焦虑(共4条)和抑郁(共4条)3个分量表。每个条目分为4级描述,按症状严重程度赋值0~3分,即:0分(从未)、1分(偶尔)、2分(经常)、3分(总是)。量表的最高分为30分,分数越高表明抑郁症状越多。总分<9分无抑郁,总分9~12分为轻度抑郁,中重度抑郁总分≥13分。该量表内容效度为0.93,临界值定为9.5,量表的Cronbach′s alpha系数为0.76[13]。
一种评估家庭功能的自评量表,用于测量个人对家庭功能的整体满意度[14]。包含5个维度:适应度、合作度、成熟度、情感度、亲密度,每个维度对应一个题目。评分采用3级制:“经常这样”得2分,“有时这样”得1分,“几乎从不”得0分。满分10分,得分越高,表明家庭功能越好。0~3分表示家庭功能严重障碍,4~6分为中度障碍,7~10分为良好。吕繁等[15]研究指出,除了适应度外,其他维度与总全量表的Kappa(w)值均>0.7,Cronbach′s α系数为0.819,该量表的内部一致性信度较好。
基于生活事件量表精选,包含19项孕期常见影响大的事件。包含家庭生活(10项)、工作学习(3项)、社交及其他(6项)。通过记录孕晚期事件发生时间及精神影响程度(0~无、1~轻度、2~中度、3~重度)累加得分,以>2分视为显著应激性事件暴露。经200人的重测信度评价,孕晚期的重测相关系数为0.96,该量表的信度较好[16]。
问卷调查同时,经知情同意后,由医院1名专业护士严格遵循无菌操作,使用5 mL 真空采血管无添加剂管(PET) 采集3 mL孕妇空腹静脉血,4 ℃ 3 000 r/min条件下离心15 min后,收集血清至低温冻存管中置于−80 ℃冰箱进行储存备用。
孕妇被随访至分娩后,从医院病历记录本中获取分娩胎龄、分娩方式、新生儿体重、新生儿性别和不良妊娠结局胎儿窘迫。
用贝克曼AU680全自动生物化学分析仪(美国贝克曼库尔特公司,加利福尼亚州)测量总胆固醇(total cholesterol, TC)、甘油三酯(triglyceride, TG)、高密度脂蛋白(high density lipoprotein, HDL)、低密度脂蛋白(low density lipoprotein, LDL)、葡萄糖(glucose, GLU)、脂蛋白(a)(lipoprotein(a), LPa)、载脂蛋白A(apolipoprotein A, APOA)、载脂蛋白B(apolipoprotein B, APOB)、载脂蛋白E(apolipoprotein E, APOE)、超敏C反应蛋白(high-sensitivity c-reactive protein, H-Crp)、RBP水平,并使用对应的试剂盒进行乳胶增强免疫比浊度测定。TyG-BMI指数的计算公式为ln [空腹甘油三酯(mg/dL)×空腹血糖(mg/dL)/2] × BMI,其中,BMI=体重(kg)/身高2(m2)。
在本研究中,胎儿窘迫的诊断依据国内外权威指南及临床实践标准[17]:急性胎儿窘迫的诊断主要基于胎心率异常(胎心率基线<110次/min或>160次/min、变异减少<3次/min、晚期或变异减速异常)、羊水胎粪污染、胎动异常(胎动计数<6次/2 h)、胎儿酸中毒(胎儿头皮血或脐动脉血pH值<7.20)以及电子胎心监护结果(采用三级判读系统,Ⅲ类胎心监护结果为异常);慢性胎儿窘迫的诊断则依据胎动异常、胎儿多普勒血流监测异常(脐动脉、大脑中动脉血流参数异常)、胎儿生物物理评分低(≤4分为胎儿窘迫,5~6分为可疑胎儿缺氧)、胎儿动脉血血气分析异常(提示胎儿酸中症)以及无应激试验异常(提示胎儿缺氧可能)。
调查人员均由公共卫生与预防医学专业的研究生担任,并在调查开始前接受系统培训,内容涵盖研究目的、意义、血液采集的预防措施及注意事项等。调查过程中,调查员首先向研究对象详细解释研究的相关信息,在获得研究对象签署的知情同意书后,严格按照调查流程开展工作。问卷收回后指定专业人士进行数据整理,剔除不合格调查表,以保证数据质量。
数据均采用Epi Data 3.1软件双录入,录入结束后并进行一致性检验,对录入有误的信息进行及时更正,进而确保调查数据的完整和准确。经过正态性检验,所有定量资料均不符合正态分布。采用R 4.3.0 统计分析软件,偏态分布的连续数据用M (Q1~ Q3)表示,采用Mann-Whitney U 检验;分类的数据用n (%)表示,采用χ2检验或Fisher确切概率法,组间比较以P < 0.05为差异有统计学意义。LASSO回归用于筛选胎儿窘迫发生的危险因素。二元logistic 回归模型用于评估多个因素与胎儿窘迫之间的关系,在不同模型中调整了多个混杂变量。相关性分析采用Spearman相关。使用 SPSS AU 软件执行中介分析。在测试链式中介之前,本研究确保满足中介标准,即预测变量、中介变量和结果变量是相互关联的。随后控制焦虑变量,以 Bootstrap 法进行中介效应检验。
本研究共纳入482人,孕晚期孕妇应激性生活事件暴露发生率为31.54%(152人),胎儿窘迫发生率为13.07%(63人)。孕晚期孕妇的应激性生活事件在不同妊娠次数(Z=−3.13,P=0.002)、流产次数(Z= −3.21,P=0.001)、学历、职业、居住地、妊娠意愿、孕前身体状况、胎儿窘迫方面差异均有统计学意义(P<0.05)。根据有无胎儿窘迫分组,胎儿性别、孕妇年龄、焦虑、应激性生活事件在2组间比较差异有统计学意义(P<0.05),而其他指标则差异无统计学意义。妊娠晚期,焦虑、应激性生活事件与胎儿窘迫之间存在显著关联,且焦虑水平较高的孕妇以及经历过应激性生活事件的孕妇面临更高的胎儿窘迫风险。
在孕晚期,发生胎儿窘迫的孕妇TyG-BMI水平高于正常组;RBP水平低于正常组。TC、HDL、LDL、GLU、LPa、APOA、APOB、APOE、H-Crp等指标在二组间比较差异均无统计学意义。
分析时纳入表1、表2所列29个变量经哑变量转换后,通过 LASSO 回归分析,最终筛选出RBP、TyG-BMI、胎儿性别、孕妇年龄、职业、居住地、早孕反应程度、孕前身体状况、基础疾病、应激性生活事件、焦虑11个非零特征变量与胎儿窘迫有关。
将单因素分析与LASSO回归分析筛选出的共同变量:胎儿性别、孕妇年龄、应激性生活事件、RBP、TyG-BMI作为自变量,将胎儿窘迫作为因变量进行logistic回归分析。结果显示,发生应激性生活事件的孕妇发生胎儿窘迫的风险是未发生孕妇的2.10倍;孕晚期焦虑的孕妇发生胎儿窘迫的风险是无焦虑孕妇的2.08倍;TyG-BMI每增加1个单位,胎儿窘迫发生的风险增加1%。然而,RBP可能是发生胎儿窘迫的保护因素,RBP每增加1 mg/L时,胎儿窘迫发生的风险降低5%。值得注意的是,应激性生活事件与TyG-BMI在逐步调整中保持稳定关联,提示二者对胎儿窘迫的独立作用;RBP的保护性也随模型完善而增强。
为满足链式中介分析的条件,对RBP、TyG-BMI进行Spearman相关分析,结果显示,TyG-BMI与RBP之间呈现显著的正相关性(r=0.177,P<0.001)。
考虑到焦虑对胎儿窘迫的显著影响,本研究把焦虑作为控制变量,考察TyG-BMI和RBP作为潜在的中介变量,如何通过应激性生活事件影响胎儿窘迫。通过分析,本研究发现仅有途径4,即焦虑(作为控制变量)通过应激性生活事件影响TyG-BMI,进而影响RBP,最终影响胎儿窘迫的链式中介路径是显著的。具体来说,生活事件对TyG-BMI的间接效应显著(P=0.042),TyG-BMI对RBP的影响同样显著(P<0.001),RBP对胎儿窘迫的影响亦有统计学意义(P=0.007)。总中介效应值为0.057。通过Bootstrap方法验证的途径4的间接效应为−0.001,95%CI= −0.005~−0.001,进一步证实了完全中介效应的存在。分析结果表明,TyG-BMI和RBP在孕晚期生活事件与胎儿窘迫之间可能起到了完全中介作用。尽管应激性生活事件对胎儿窘迫的直接效应不显著,但其通过TyG-BMI和RBP的间接效应是显著的。TyG-BMI的上升可能提高了孕妇的RBP水平,RBP水平的提高对胎儿窘迫风险有降低作用。
孕晚期是胎儿发育和成熟的关键阶段,也是胎儿窘迫的易发期。有研究表明,急性胎儿窘迫发生在分娩阶段,慢性胎儿窘迫发生在妊娠晚期[8]。本研究发现应激性生活事件、TyG-BMI、RBP均与胎儿窘迫的发病风险有关。经历应激性生活事件的孕妇发生不良妊娠结局胎儿窘迫的风险显著上升。以往研究表明,应激性生活事件与孕妇的焦虑、抑郁和幸福感有显著关联[18]。应激性生活事件与孕期代谢紊乱密切相关,应激事件通过影响下丘脑–垂体–肾上腺轴,引起皮质醇水平升高,进而影响代谢功能,最终导致妊娠并发症和不良出生结局[19]。此外,经历应激性生活事件的孕妇更容易引发早产[20]。尽管上述研究表明受孕期间应激性生活事件会引发不良妊娠结局,但这些研究并未进一步分析代谢指标在应激性生活事件与胎儿窘迫之间的作用。
目前,大量研究表明,IR与妊娠期糖尿病、妊娠期高血压疾病以及低出生体重和早产等不良妊娠结局密切相关[21–22]。TyG-BMI作为评估IR的可靠指标,可以预测心血管风险,如高血压、糖尿病和动脉粥样硬化等[23]。也有研究发现TyG-BMI与代谢综合征密切相关[24]。既往研究已经证实了TyG指数是诸多不良妊娠结局的独立危险因素,如妊娠期高血压、低出生体重和胎儿窘迫等[25]。而作为复合指标的TyG-BMI,本研究经logistic回归分析发现,随着孕妇TyG-BMI的升高,发生胎儿窘迫的风险显著增加。除此之外,研究发现,高RBP 水平也与IR密切相关[26]。孕期RBP水平的升高和降低都会引发多种不良妊娠结局。研究显示,孕晚期妊娠高血压孕妇的血清RBP水平显著高于正常孕妇,且病情越重,RBP水平越高[27]。来自上海市的出生队列研究表明,脐带血RBP水平与胎儿过度生长呈正相关[28]。此外,在妊娠合并甲减患者中,血清 RBP 水平显著升高是不良妊娠结局的危险因素[29]。也有研究证实,早产儿、低体重儿等不良妊娠结局的新生儿脐血中RBP的含量较足月新生儿明显降低[30]。RBP水平降低与胎儿生长受限密切相关,胎儿生长受限组孕妇的孕中期血清 RBP水平显著低于对照组,且与新生儿出生体重呈正相关[31]。
上述研究结果存在差异的原因可能在于,不同受孕人群RBP水平偏离正常范围的程度不同。本研究发现,胎儿窘迫组孕妇血清 RBP水平低于正常孕妇,这表明孕妇血清RBP水平降低可以显著增加胎儿窘迫的发生风险。因此,RBP可能是孕妇发生胎儿窘迫的保护因素,血清RBP水平降低,影响了RBP 对胎儿维生素 A(视黄醇)的转运、储存及吸收[32],从而增加了胎儿窘迫的发生风险。由此可知,孕晚期孕妇血清TyG-BMI、RBP水平与IR水平以及胎儿窘迫的发生密切相关。本研究采用了链式中介模型来探讨孕晚期应激性生活事件通过TyG-BMI和RBP对胎儿窘迫的影响。结果显示,TyG-BMI和RBP应激性生活事件与胎儿窘迫之间起到了完全中介的作用。具体表现为,在孕晚期,应激性生活事件的暴露通过升高TyG-BMI影响孕妇的IR水平,进而增加血清RBP水平,然而RBP水平的升高,降低了胎儿窘迫发生的风险。因此,RBP在一定程度上对胎儿窘迫的发生起到了保护作用。这些结果强调了监测孕期代谢指标的重要性,因为它们可能对预测胎儿窘迫的风险具有潜在的临床价值。
本研究的局限性:在本研究中,TyG-BMI和RBP在应激性生活事件与胎儿窘迫之间起到了完全中介效应。其他路径不显著的原因可能包括样本量限制、未测量的混杂变量。鉴于本研究的前瞻性设计,未来的研究应进一步扩大样本量,以提高统计效能,同时考虑探索更多的潜在混杂变量。此外,建议采用更长期的纵向设计,以更全面地捕捉孕期及产后相关变量的变化,从而更准确地验证中介效应及其随时间的动态变化。
综上所述,孕晚期生活事件的暴露通过影响孕妇的胰岛素抵抗水平,特别是TyG-BMI和RBP的水平,从而影响胎儿窘迫发生的风险。未来的研究应该探索这些指标与其他不良妊娠结局的相关性,以及影响孕妇和胎儿的长期健康的可能机制。此外,考虑到RBP在维生素A运输中的关键作用和对胎儿窘迫的保护作用,可能为制定新的预防和干预策略提供重要信息,以改善孕晚期孕妇的代谢健康,并优化胎儿的发育环境。

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doi: 10.11847/zgggws1147413
  • 接收时间:2025-03-17
  • 首发时间:2026-10-25
  • 出版时间:2025-09-10
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  • 收稿日期:2025-03-17
  • 修回日期:2025-06-12
  • 录用日期:2025-08-02
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    1宁夏医科大学公共卫生学院,银川 750004
    2宁夏环境因素与慢性病控制重点实验室,银川 750004
    3宁夏医科大学总医院,银川 750004

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2种不同金属材料的力学参数
科
Family
属数
Number of
genus
种数
Number of
species
占总种数比例
Percentage of
total species (%)
属
Genus
种数
Number of
species
占总种数比例
Percentage of total
species (%)
鹅膏菌科Amanitaceae 2 11 5.26 鹅膏菌属 Amanita 10 4.78
小菇科 Mycenaceae 2 12 5.74 丝盖伞属 Inocybe 5 2.39
多孔菌科 Polyporaceae 8 14 6.70 蜡蘑属 Laccaria 5 2.39
红菇科 Russulaceae 3 23 11.00 小皮伞属 Marasmius 6 2.87
小菇属 Mycena 11 5.26
光柄菇属 Pluteus 5 2.39
红菇属 Russula 17 8.13
栓菌属 Trametes 5 2.39
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