Leukocyte telomere length as a compensatory mechanism in vitamin D metabolism.

What Was Tested

Researchers studied Vitamin D, K2, Magnesium and Zinc in this randomized controlled trial publication.

The objective of their study is to examine the association of vitamin D supplementation on leukocyte telomere length (LTL) in healthy postmenopausal women with vitamin D deficiency.

The study was designed as a placebo-controlled study to investigate the short-term effects of vitamin D supplementation and seasonal changes on vitamin D related parameters, including 25(OH)D, 1,25(OH)2D parathormone (PTH), Vitamin D binding protein (VDBP), vitamin D receptor (VDR), and telomere length in a cohort of postmenopausal women (n = 102).

Why It Was Studied

Vitamin D deficiency is common among postmenopausal women.

Telomere length can be a potential protective mechanism for age-related diseases.

Who Took Part

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

All parameters were measured before and after treatment.

How the Study Was Run

In design terms this was a randomized and placebo-controlled study.

Random assignment meant chance, not the researchers, decided who got Vitamin D, K2, Magnesium and Zinc and who got the comparison, which limits bias.

The comparison arm used a placebo, so changes seen with Vitamin D, K2, Magnesium and Zinc could be set against what happens without it.

Serum VDBP levels were measured by ELISA method and VDR, GC (VDBP) gene expressions and relative telomere lengths were measured in peripheral blood mononuclear cells (PBMC) using a quantitative real-time PCR method.

What Was Measured

Topics PubMed links to this paper include Cohort Studies, Leukocytes, Mononuclear, Postmenopause, Receptors, Calcitriol, Telomere, Telomere Homeostasis and Transcriptome.

What This Means in Plain Language

The paper is a randomized and placebo-controlled study of Vitamin D, K2, Magnesium and Zinc.

The publication is from 2022 (PloS one), a journal based in United States.

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