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Exploring the shared genetic basis between autism spectrum disorder and gastrointestinal disorders: a bioinformatic study.

Scientific reports2025

Malekpour Mahdi, Parhizkar Mohamad, Golabi Fahimeh, Thompson Rachel, Zakwani Mohammed Al, Soleymanjahi Saeed, Chohedri Elnaz

What this study means for families

Researchers looked at genetic databases to find shared genes between autism and digestive problems like inflammatory bowel disease and celiac disease. They found thousands of genetic variants for each condition, but only found 3 genes that might be shared between autism and both digestive conditions. However, one of these connections couldn't be confirmed. This suggests there may be some genetic links between autism and digestive issues, but more research is needed.

Summary by AutismInsights from published abstract. This is not a substitute for reading the original paper.

Research summary

This bioinformatics study investigated shared genetic variations between autism spectrum disorder (ASD) and gastrointestinal conditions including inflammatory bowel disease (IBD) and celiac disease. Researchers analyzed multiple genetic databases to identify common genetic variants across these conditions. From 2,367 ASD-associated variants, 458 celiac disease variants, and 1,912 IBD variants, only 3 shared variants were identified across all three conditions. These were found in the MTHFR, MYO9B, and TCN2 genes, though the TCN2-celiac disease association could not be validated.

The findings suggest limited but potentially important genetic overlap between ASD and these GI disorders, though further research is needed to understand the clinical implications.

Summary by AutismInsights from published abstract. This is not a substitute for reading the original paper.

Key findings

  • 1

    Only 3 genetic variants (MTHFR, MYO9B, TCN2) were shared across ASD, IBD, and celiac disease from thousands of identified variants

    Confidence: limitedRelevance: Suggests minimal but potentially important genetic overlap between ASD and GI disorders
  • 2

    TCN2 gene association with celiac disease could not be validated during review process

    Confidence: limitedRelevance: Highlights the need for careful validation of genetic associations identified through database mining

Summary by AutismInsights from published abstract. This is not a substitute for reading the original paper.

Clinical implications

Results suggest limited genetic overlap between ASD and GI disorders, which may inform understanding of comorbid GI issues in autism. However, the clinical significance remains unclear and requires further investigation through functional studies and clinical validation before informing treatment approaches.

Summary by AutismInsights from published abstract. This is not a substitute for reading the original paper.

Limitations

Study relies entirely on existing database information without new experimental validation. Only one of the three identified shared genetic variants could be fully validated. No functional analysis was performed to understand how these genetic variants might contribute to disease mechanisms.

Summary by AutismInsights from published abstract. This is not a substitute for reading the original paper.

Original abstract

Autism spectrum disorder (ASD) is a neurodevelopmental disorder with early-appearing social communication deficits and repetitive behaviors. ASD is associated with various comorbidities, including gastrointestinal (GI) conditions. This study aims to identify shared genetic mutations between ASD, inflammatory bowel disease (IBD), and celiac disease through bioinformatics, to uncover mechanisms contributing to GI issues in ASD patients. In this study, databases including DisGeNET, Genome Wide Association Study (GWAS) Catalog, and Ensembl were utilized to identify variation disease associations (VDAs) for ASD, celiac disease and IBD.

Shared VDAs were identified using the Molbiotools website and validated by reviewing original articles and resources provided by the databases. In our screening 2367 VDAs found for ASD, 458 for Celiac disease and 1912 for IBD. However, search across these databases revealed only 3 shared VDAs among ASD, celiac disease and IBD. These shared VDAs were found in the Methylenetetrahydrofolate reductase (MTHFR), Myosin IXB (MYO9B), and Transcobalamin 2 (TCN2) genes.

However, the association between the TCN2 gene and celiac disease was not confirmed during the validation process. In this study, we investigated the shared genetic basis between ASD and genetically defined GI disorders based on previously published papers. The findings of this study provide valuable insights into the shared genetic basis of these diseases; however, further investigations are needed to understand these genetic implications.

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Evidence Grade

Emerging

emerging

Grade assigned by AutismInsights based on study type and published abstract.

Study Details

Journal
Scientific reports
Year
2025
PMID
40820227
DOI
10.1038/s41598-025-15476-w

MeSH Terms

HumansAutism Spectrum DisorderComputational BiologyGenome-Wide Association StudyGenetic Predisposition to DiseaseGastrointestinal DiseasesCeliac DiseaseDatabases, GeneticInflammatory Bowel DiseasesMutation