1. Impact of gene polymorphisms involved in the vitamin D metabolic pathway on the susceptibility to and severity of autism spectrum disorder
- Author
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Chanarong Saechua, Tewarit Sarachana, Weerasak Chonchaiya, Pon Trairatvorakul, Wasana Yuwattana, Chayanit Poolcharoen, Montira Sangritdech, Thanit Saeliw, Marlieke Lisanne van Erp, Siriporn Sangsuthum, Natthakul Akarapredee, Sayanit Tipnoppanon, Rattanaporn Sukprasong, Patompong Satapornpong, Chalirmporn Atasilp, Chonlaphat Sukasem, and Natchaya Vanwong
- Subjects
Autism spectrum disorder ,Vitamin D gene polymorphisms ,Thai Children ,Medicine ,Science - Abstract
Abstract This study explores the association between genetic variations in the vitamin D pathway and autism spectrum disorder (ASD) susceptibility and severity in Thai children. A total of 276 participants, including 169 children with ASD and 107 healthy controls, were recruited. Genotyping of vitamin D pathway genes (CYP2R1, CYP27B1, GC, and VDR) was conducted using TaqMan-based real-time PCR, while serum vitamin D levels were measured by chemiluminescence immunoassay. ASD severity was assessed via the Childhood Autism Rating Scale, 2nd Edition. Results reveal that the VDR gene (ApaI) rs7975232 is linked to a reduced ASD risk. In contrast, the GC gene rs7041 (A > C) polymorphism shows a significant association with increased ASD risk and severity, particularly in individuals with both the GC gene polymorphism and vitamin D insufficiency. Additionally, there was a higher prevalence of the GC1s isoform and GC1s-GC1s haplotype in children with ASD, associated with ASD severity. This study identified that individuals possessing GC rs7041 C alleles and the GC1s genotype (rs7041C/rs4588G) exhibit an increased susceptibility to and more severity of ASD. Further studies with larger cohorts are essential to fully understand these genetic polymorphisms’ roles.
- Published
- 2024
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