Association of Gut Microbiome and Vitamin D Deficiency in Knee Osteoarthritis Patients: A Pilot Study.

What Was Tested

Researchers studied Vitamin D, K2, Magnesium and Zinc in this observational study publication.

This pilot study was designed to look at the gut microbiome composition in KOA patients and normal individuals with or without vitamin D deficiency (VDD, serum vitamin D <30 ng/mL).

Who Took Part

The abstract describes 24 participants taking part.

PubMed indexes the participants as adults and middle-aged adults, men only.

This pilot study was conducted prospectively in 24 participants.

The faecal samples of all the participants were taken for DNA extraction.

How the Study Was Run

In design terms this was a pilot study.

It is described as a pilot, a small early test of whether a larger Vitamin D, K2, Magnesium and Zinc study would be practical.

The V3-V4 region of 16s rRNA was amplified, and the library was prepared and sequenced on the Illumina Miseq platform.

What Was Measured

PubMed files the paper under topics including DNA, Bacterial, Dysbiosis, Feces, Gastrointestinal Microbiome, High-Throughput Nucleotide Sequencing, Osteoarthritis, Knee and Phylogeny.

Author keywords: gut microbiome, knee osteoarthritis and vitamin D.

What This Means in Plain Language

The paper is a pilot study of Vitamin D, K2, Magnesium and Zinc in 24 participants.

With fewer than 40 people, it is a small study, so it is better read as an early signal for further research than as a settled answer.

Its findings take up roughly 8 sentences of the abstract and are left out here on purpose; the source paper is the place to read them.

The publication is from 2021 (Nutrients), a journal based in Switzerland.

More context: the Vitamin D, K2, Magnesium and Zinc compound page, all human trials.