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01-06-2019 | Original Contribution

LPHN3 gene variations and susceptibility to ADHD in Chinese Han population: a two-stage case–control association study and gene–environment interactions

Authors: Xin Huang, Qi Zhang, Xue Gu, Yuwei Hou, Min Wang, Xinzhen Chen, Jing Wu

Published in: European Child & Adolescent Psychiatry | Issue 6/2019

Abstract

Polymorphisms in latrophilin 3 (LPHN3) were recently reported to be associated with attention-deficit/hyperactivity disorder (ADHD), and subsequently other researchers tried to replicate the findings in different populations. This study was aimed to confirm the role of the LPHN3 in ADHD and explore the potential interactions with environmental risk factors in Chinese Han population. We examined the association of LPHN3 with ADHD in a population of 473 ADHD children and 585 controls. As a supplement of ADHD diagnosis, Conners Parent Symptom Questionnaire (PSQ) was used to evaluate ADHD symptoms. Blood lead levels (BLLs) were measured by atomic absorption spectrophotometry and other potential environmental risk factors were determined via a questionnaire filled out by the parents. Finally, after validation in an independent sample (284 cases and 390 controls), we observed significant associations between LPHN3 variants rs1868790 and ADHD risk in combined stage within codominant model [TA/AA: OR (95% CI) = 1.636 (1.325–2.021)], dominant model [OR (95% CI) = 1.573 (1.288–1.922)], and additive model [OR (95% CI) = 1.535 (1.266–1.862)]. Furthermore, rs1868790 significantly interacted with BLLs and maternal stress to modify ADHD susceptibility (P < 0.05), and rs1868790 was found to be related with ADHD symptoms (P < 0.05). Expression quantitative trait loci analysis further indicated that rs1868790 took part in the regulation of LPHN3 gene expression. As the first study to comprehensively explore the role of LPHN3 in ADHD in Chinese children, our research suggests that LPHN3 gene has a significant effect on the ADHD in a Chinese population.

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Title: LPHN3 gene variations and susceptibility to ADHD in Chinese Han population: a two-stage case–control association study and gene–environment interactions
Authors: Xin Huang
Qi Zhang
Xue Gu
Yuwei Hou
Min Wang
Xinzhen Chen
Jing Wu
Publication date: 01-06-2019
Publisher: Springer Berlin Heidelberg
Published in: European Child & Adolescent Psychiatry / Issue 6/2019
Print ISSN: 1018-8827
Electronic ISSN: 1435-165X
DOI: https://doi.org/10.1007/s00787-018-1251-8

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Springer Medicine

LPHN3 gene variations and susceptibility to ADHD in Chinese Han population: a two-stage case–control association study and gene–environment interactions

Abstract

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Abstract

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