When mice can't use vitamin D properly, their bodies overreact to bacterial toxins, causing dangerous inflammation and higher death rates—meaning vitamin D helps calm down harmful immune responses.
See the scientific wording
Vitamin D receptor deficiency in mice causes a hyperinflammatory response to bacterial lipopolysaccharide, resulting in significantly elevated serum TNFα and IL-6 levels and increased mortality, demonstrating that intact vitamin D signaling is necessary to suppress lethal inflammation.
Correlational — new studies may shift this
ObservationalOne low-scoring study links this claim to the outcome, but causation is not established.
What the research says
1 study reviewedSupporting (1)
Case-Control StudyAnimal2013
When mice don’t have a working vitamin D system, their bodies overreact to bacteria, making too many dangerous inflammation chemicals and sometimes dying. This study shows vitamin D normally acts like a brake to calm down that overreaction.
Contradicting (0)
No contradicting studies found yet
That doesn't mean it's settled — it just means no study has tested the opposite.
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Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting study
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When mice can't use vitamin D properly, their bodies overreact to bacterial toxins, causing dangerous inflammation and higher death rates—meaning vitamin D helps calm down harmful immune responses.
Evidence from Studies
Supporting (1)
Community contributions welcome
1,25-Dihydroxyvitamin D Promotes Negative Feedback Regulation of TLR Signaling via Targeting MicroRNA-155–SOCS1 in Macrophages
When mice don’t have a working vitamin D system, their bodies overreact to bacteria, making too many dangerous inflammation chemicals and sometimes dying. This study shows vitamin D normally acts like a brake to calm down that overreaction.
1 study stuck in processing — a maintainer can requeue it.
Contradicting (0)
Community contributions welcome
1 study has been processing far longer than a normal run. The pipeline may be stuck — a maintainer can requeue it, and the results will appear here once it finishes.
Score Breakdown
No multi-axis breakdown available yet. The overall Pro / Against score above is the best signal.
- No clinical evidence is available; the score reflects mechanistic plausibility only.
What Would Prove This
Per GRADE and EBM methodology, here is what ideal scientific evidence would look like to definitively prove or disprove this claim, ordered from strongest to weakest.
Systematic Review of Vitamin D Receptor Knockout Mouse Studies Exposed to LPS and Measuring TNFα, IL-6, and Mortality
Systematic review and meta-analysis of all peer-reviewed studies using vitamin D receptor knockout mice exposed to bacterial lipopolysaccharide, comparing serum TNFα, IL-6 levels, and survival rates versus wild-type controls, with standardized dosing and timing.
Randomized Controlled Trial of Vitamin D Receptor Activation vs. Control in Mice Exposed to LPS to Assess Inflammatory Markers and Survival
Randomized assignment of mice to either vitamin D receptor agonist treatment or vehicle control, followed by standardized LPS challenge; outcomes measured include serum TNFα, IL-6, and 72-hour mortality, with blinding and randomization.
Prospective Cohort Study of Vitamin D Receptor Expression Levels and Inflammatory Outcomes in Mice Following LPS Exposure
Longitudinal observation of a cohort of mice with naturally varying vitamin D receptor expression levels, exposed to identical LPS doses, with serial measurements of TNFα, IL-6, and survival over time.
In Vitro Study of Macrophage Inflammatory Response to LPS in Vitamin D Receptor Knockout vs. Wild-Type Mouse Cells
Isolated macrophages from vitamin D receptor knockout and wild-type mice exposed to identical LPS concentrations; cytokine secretion measured over time in controlled culture conditions.
Single-Center Animal Study Comparing Inflammatory Response and Mortality in Vitamin D Receptor Deficient vs. Wild-Type Mice After LPS Injection
Comparison of serum TNFα, IL-6, and 7-day mortality in a small group of vitamin D receptor-deficient mice versus wild-type controls after a single LPS injection, with no blinding or randomization.