Ligilactobacillus murinus
Ligilactobacillus murinus (formerly Lactobacillus murinus) is a lactic acid bacterium found predominantly in the gut microbiota of rodents and other small mammals. Most indexed research involves this species as an observed gut community member in animal model studies across a range of contexts — metabolism, immunity, sleep, antibiotic effects — rather than as a deliberately administered probiotic. A 2026 study explored extracellular vesicles derived from L. murinus in cell models in connection with inflammatory signaling, and the species has also been studied in a small canine randomized controlled trial using native LbP2 isolates. L. murinus is not an established human probiotic and does not have human clinical trial evidence; its relevance to human health is currently limited to mechanistic and correlational animal research. These are research topics, not findings; the papers do not establish that this strain treats or prevents any condition.
Where it's been studied Tags come from a conservative keyword scan of each paper's title, abstract, and summary. A tag is research coverage, not measured effect. How we classify this →
Share of this strain's 152 body-system-tagged papers that concern each system. Research coverage, not measured effect.
+4 more systems
Symptoms in the research A tag means the paper's text names the symptom or condition — research coverage, not evidence of benefit. How we classify this →
Share of this strain's 52 symptom-tagged papers that mention each symptom or condition. Research coverage, not evidence of benefit.
Research Study-type filters use AI-classified labels, audited but not guaranteed — check the paper itself before leaning on one. How we classify this →
176 papers reference this strain in the probiotic database.
Discussion
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Citations
Selected papers that name this strain.
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[1]
PMID 39500329 →A diet-dependent host metabolite shapes the gut microbiota to protect from autoimmunity· Cell Reports · 2024
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[2]
Source →LACTOBACILLUS MURINUS ACTIVATES THE ARYL HYDROCARBON RECEPTOR TO ATTENUATE TNF-ALPHA-INDUCED PRO-INFLAMMATORY RESPONSES IN HUMAN INTESTINAL EPITHELIAL CELLS· Inflammatory Bowel Diseases · 2022