Cure8 research brief
The study links paternal exposure to an emerging PFAS chemical (OBS) with epigenetic changes in sperm that may increase offspring susceptibility to colitis, highlighting a possible environmental pathway relevant to IBD risk and identifying the CLOCK–ABCA1 axis as a candidate target.
Researchers (epigenetics, microbiome, environmental health), clinicians treating IBD, and patients/advocates concerned about environmental risk factors.
The researchers used a mouse model to show chronic low-dose paternal OBS exposure was associated with gut barrier disruption and greater sensitivity to DSS-induced colitis in offspring.
They combined DNA methylation, transcriptomics, metagenomics, ChIP-seq and metabolomics analyses and report hypermethylation of the Clock promoter in paternal sperm linked to downregulation of the CLOCK–ABCA1 axis and impaired cholesterol efflux in the offspring colon.
The team validated aspects of the pathway in human clinical samples using multicolor immunohistochemistry and single-cell transcriptomics, which the authors say supports relevance to IBD. The study is primarily mechanistic and preclinical; it identifies potential biomarkers and pathways rather than tested therapies.
Findings are from a murine model with supporting human tissue analyses reported in the same study; this is mechanistic, not evidence that OBS exposure causes IBD in people. The article depth is an abstract summary of a journal article.
Review the original publication for the complete reporting, methods, and context.
Conflict statement: Declaration of Competing Interest ☒ The authors declare that they have no known competing financial interests or personal relationships that could have appeared to influence the work reported in this paper.
This Cure8 brief is based on source text from the linked article. Cure8 is informational only and is not a substitute for professional medical advice, diagnosis, or treatment.
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