陆军军医大学大坪医院儿科,重庆
PENG Wenjie, E-mail: pengwenjie@tmmu.edu.cn
HU Zhangxue, E-mail: huzhangxue@tmmu.edu.cn
Received:29 June 2025,
Revised:2025-11-07,
Accepted:11 November 2025,
Published:30 November 2025
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陈正东,冉清琦,肖明辉,等.妊娠期肝内胆汁淤积症与子代神经发育障碍的因果关联及脂蛋白与ATP酶的中介作用:一项孟德尔随机化研究[J].陆军军医大学学报,2025,47(22):2725-2734.DOI:10.16016/j.2097-0927.202506083.
CHEN Z D,RAN Q Q,XIAO M H,et al.Causal association between intrahepatic cholestasis of pregnancy and offspring neurodevelopmental disorders and mediating roles of lipoproteins and ATPase: A Mendelian randomization study[J].J Army Med Univ,2025,47(22):2725-2734.DOI:10.16016/j.2097-0927.202506083.
陈正东,冉清琦,肖明辉,等.妊娠期肝内胆汁淤积症与子代神经发育障碍的因果关联及脂蛋白与ATP酶的中介作用:一项孟德尔随机化研究[J].陆军军医大学学报,2025,47(22):2725-2734.DOI:10.16016/j.2097-0927.202506083. DOI:
CHEN Z D,RAN Q Q,XIAO M H,et al.Causal association between intrahepatic cholestasis of pregnancy and offspring neurodevelopmental disorders and mediating roles of lipoproteins and ATPase: A Mendelian randomization study[J].J Army Med Univ,2025,47(22):2725-2734.DOI:10.16016/j.2097-0927.202506083. DOI:
目的
2
探究妊娠期肝内胆汁淤积症 (intrahepatic cholestasis of pregnancy, ICP)和子代注意缺陷多动障碍(attention-deficit hyperactivity disorder, ADHD)和妥瑞氏综合征(Tourette’s Syndrome, TS)之间的因果关联以及潜在机制。
方法
2
数据均
来源于公共数据库全基因组关联研究(genome wide association study,GWAS)。其中暴露为ICP(
n
=123 579),来源于芬兰数据库;结局为ADHD与TS及其他抽动障碍(
n
=23 918),来源于GWAS Catalog数据库。中介分子中,高密度脂蛋白里的总胆固醇含量(
n
=21 558)来源于人类血浆蛋白质组的基因图谱,Obg样ATP酶1来源于循环代谢物全基因组研究(
n
=3 301)。本研究选择满足MR假设的工具变量。双样本MR分析主要方法为逆方差加权(inverse variance weighted, IVW),MR-Egger回归、加权中位数法、加权众数法、简单模式也被采用进行稳健性分析。Cochran’s Q 检验、MR-Egger 截距检验和留一法等敏感性分析用来验证结果的可靠性,统计显著性设定为
P<
0.05。使用中介MR时,从暴露到中介的第一步采用双样本MR,第二步采用多变量MR,此时条件F值被采用检测工具变量的强度。最后使用乘积分布检验验证中介效应的显著性。
结果
2
ICP与ADHD和TS及其他抽动障碍显著相关(IVW:
OR
=1.003, 95%
CI
:1.000~1.006,
P
=0.035),敏感性分析证实了结果的稳健性。可能的中介分子包括高密度脂蛋白中总胆固醇含量[总效应 (total effect, TE)=2.855×10
-3
;中介效应(mediated effect, ME)=8.628×10
-4
;中介效应占比(mediated proportion, MP)=30.217%,95%
CI
: 0.878%~73.954%)] 和Obg样ATP酶1(TE=2.855×10
-3
;ME=1.216×10
-3
; MP=42.572%,95%
CI
: 6.356%~90.195%)。
结论
2
ICP可能通过高密度脂蛋白中总胆固醇含量和Obg样ATP酶1的减少来增加子代ADHD和TS及其他抽动障碍的发病率。
Objective
2
To explore the callsal association between intrahepatic cholestasis of pregnancy (ICP) and offspring attention-deficit hyperactivity disorder (ADHD) and Tourette’s syndrome (TS) and its potential mechanisms.
Methods
2
Genome wide association study (GWAS) in public datasets was used to extract data. Among them
exposure was ICP (
n
=123 579)
which stems from FinnGen dataset. Outcome was defined as ADHD
TS and other tic disorders (
n
=23 918)
which is extracted from GWAS Catalog. Among mediators
total cholesterol in high-density lipoprotein (TC in HDL) were from the genetic map of the human plasma proteinome (
n
=21 558)
and Obg-like ATPase 1 was from whole-genome study of circulating metabolites (
n
=3 301). In this study
we chose instrumental variables (IVs) that meets the Mendelian randomization (MR) hypothesis. When using two-sample MR
inverse variance weighted (IVW) was adopted as the primary method
and MR-Egger regression
weighted median
weighted mode
and simple mode were also utilized to analyse the robustness. Cochran’s Q test
MR-Egger intercept test and leave-one-out sensitivity analysis were performed to verify the reliability. Significant threshold was set up as
P
<
0.05. When using two-step MR
the first step is two-sample MR from exposure to mediator
and the second step is multivariable MR (MVMR)
which is from mediator to outcome. At this time
conditional F-statistic was adopted to test the strength of IVs. At last
product distribution test was applied to determine the significance of mediation effects.
Results
2
ICP was significantly related to ADHD and TS as well as other tic disorders in offspring (IVW:
OR
=1.003
95%
CI
: 1.000~1.006
P
=0.035)
and sensitivity analysis verified the robustness of the results. The potential positive mediators included TC in HDL [total effect (TE) =2.855×10
-3
; mediated effect (ME) =8.628×10
-4
; mediated proportion (MP) =30.217%
95%
CI
: 0.878%~73.954%
]
and Obg-like ATPase 1 (TE=2.855×10
-3
; ME=1.216×10
-3
; MP=42.572%
95%
CI
: 6.356%~90.195%).
Conclusion
2
ICP is possible to elevate the incidence rate of ADHD and TS and other tic disorders
via
reducing TC in HDL and Obg-like ATPase 1.
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