An Association Study of Gamma-Aminobutyric Acid Type A Receptor Variants and Susceptibility to Autism Spectrum Disorders.

Adak et al. (2021) looked at two tiny spelling changes, called SNPs, in GABA-A receptor genes. They compared children with autism to kids without autism in West Bengal, India. The goal was to see if these gene variants show up more often in autism.

Kids with autism carried the rs4906902G and rs140679T variants more often than controls. These markers were tied to social and repetitive-behavior problems. The team says the two SNPs could act as genetic red flags for autism in Indian families.

Malenfant et al. (2012) found a different gene, GTF2i, linked to severe social issues in an Indian cohort. Both studies show Indian populations can have unique autism-risk genes.

Modabbernia et al. (2016) took a wide-angle view. Their meta-analysis of 67 studies says birth oxygen trouble, not genes, modestly raises autism risk. The two papers seem to clash, but they measure different things: Pallabi looks at lifelong DNA risk, while Amirhossein looks at short-term birth events.

Sun et al. (2025) adds brain scans to the story. They link autism severity to parahippocampal gyrus size. Together, the three studies build a ladder: genes → brain → behavior.

You cannot change genes, but you can use them to spot families who need early screening. If a child carries these GABA SNPs, watch social and repetitive behaviors closely and start ABA sooner. Share the finding with parents to explain why skills may lag and why intensive teaching helps.