Arsenic exposure associated T cell proliferation, smoking, and vitamin D in Bangladeshi men and women.

What Was Tested

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

There are limited data examining the consequences of environmental exposure to arsenic on the immune system in adults, particularly among smokers.

In contrast, vitamin D (VitD) is known to have a positive influence on innate and adaptive immune responses.

Who Took Part

The abstract describes 614 participants taking part.

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

TCP was measured ex vivo in cryopreserved peripheral blood mononuclear cells from 614 adult participants enrolled in the Bangladesh Health Effects of Arsenic Longitudinal Study; serum VitD was also evaluated.

How the Study Was Run

Arsenic exposure was assessed using total urinary arsenic as well as urinary arsenic metabolites all adjusted for urinary creatinine.

The influence of cigarette smoking on arsenic-induced TCP modulation was assessed only in males as there was an inadequate number of female smokers.

What Was Measured

Here the researchers examine the relationship of arsenic exposure and T cell proliferation (TCP), a measure of immune responsiveness, and circulating VitD among adult men and women in Bangladesh.

The subject headings attached to it are Arsenic, Bangladesh, Cell Proliferation, Environmental Exposure, Longitudinal Studies, Smoking and T-Lymphocytes.

What This Means in Plain Language

This is an observational study of Vitamin D, K2, Magnesium and Zinc in 614 participants.

With several hundred people or more, it is a fairly large study for this kind of research.

The publication is from 2020 (PloS one), a journal based in United States.

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