Aspirin

Aspirin (acetylsalicylic acid) is a non-steroidal anti-inflammatory drug (NSAID) that irreversibly inhibits cyclooxygenase (COX) enzymes, suppressing prostaglandin synthesis. While widely used as an antiplatelet and anti-inflammatory agent, aspirin carries significant implications for the Gut Microbiome and intestinal barrier integrity.

COX inhibition reduces protective prostaglandin production in the gastrointestinal mucosa, predisposing to NSAID enteropathy—a condition characterized by increased intestinal permeability, mucosal erosion, and shifts in microbial community composition (^{[1]Gut Microbiota in NSAID Enteropathy: New Insights From InsideXianglu Wang, Qiang Tang, Huiqin Hou et al. · 2021Open reference 1 ↓}). The resulting barrier damage can facilitate bacterial translocation and low-grade endotoxemia.

Aspirin use has also been examined in the context of neurological conditions.

Epidemiological data link NSAID exposure patterns to altered microbiome profiles in Parkinson's disease cohorts (^{[2]2023 -- Assessing the Impact of Common Pain Medications on Gut Microbiota Composition and Metabolites: Insights from Mendelian RandomizationAuthor information pending · 2023Open reference 2 ↓}), and aspirin appears alongside other pharmaceutical exposures (acetaminophen, amoxicillin) as a variable in autism-spectrum microbiome research (^{[3]Good 2018 -- Evidence the U.S. Autism Epidemic Initiated by Acetaminophen (Tylenol) is Aggravated by Oral Antibiotic Amoxicillin/Clavulanate (Augmentin) and Now Exponentially by Herbicide Glyphosate (Roundup)Peter Good · 2018Open reference 3 ↓}).