The Claim

Vitamin D suppresses microRNA-155 transcription in macrophages by enabling vitamin D receptor signaling to block NF-κB binding to a specific DNA element in the first intron of the bic gene, thereby exerting an anti-inflammatory effect.

Source: 1,25-Dihydroxyvitamin D Promotes Negative Feedback Regulation of TLR Signaling via Targeting MicroRNA-155–SOCS1 in Macrophages

What the research says

Supports is higher

Support is ahead, but a single strong opposing study can change this.

Supports
12score
Challenges
0score

These are independent scores, not a percentage. Higher-grade studies count more, so a single strong opposing study can outweigh several weaker ones.

How it works
1 study reviewed
In plain English

Vitamin D helps calm inflammation in certain immune cells by stopping a specific switch in the cell’s DNA from turning on a molecule that causes inflammation.

See the scientific wording

The anti-inflammatory effect of vitamin D in macrophages is mediated through a specific DNA element in the first intron of the bic gene, where vitamin D receptor signaling blocks NF-κB binding to suppress microRNA-155 transcription.

What the research says

1 study
  1. Study: 1,25-Dihydroxyvitamin D Promotes Negative Feedback Regulation of TLR Signaling via Targeting MicroRNA-155–SOCS1 in Macrophages

    Vitamin D helps calm down inflammation in immune cells by blocking a specific DNA switch that would otherwise turn on a trouble-making molecule called miR-155. This switch is right inside a gene called bic, and vitamin D stops a protein (NF-κB) from activating it.

Score breakdown, mechanism chain, raw evidence, ideal studies needed & 1 supporting studies

Fit Body Science verdict — we translate health claims into clear verdicts backed by peer-reviewed research.

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