Does Inorganic Nitrate Say NO to Obesity by Browning White Adipose Tissue?

Overview

Journal Adipocyte

Specialties Cell Biology
Endocrinology
Physiology

Date 2015 Oct 10

PMID 26451288

Citations 5

Authors

Lee D Roberts

Affiliations

Soon will be listed here.

Abstract

The dietary constituent inorganic nitrate, found in large concentrations in green leafy vegetables, has beneficial effects on cardiometabolic health. Contemporary studies employing nitrate have demonstrated that the anion has anti-obesity and anti-diabetic properties; however the nitrate-mediated mechanisms for improving metabolic health remain unclear. Recently, we employed a combined histological, metabolomics, and transcriptional and protein analysis approach to establish that nitrate promoted the "browning" of white adipose tissue via the xanthine oxidoreductase catalyzed reductive nitrate-nitrite-nitric oxide pathway. Interestingly, it was observed that nitrate-stimulated brown adipose-associated gene expression in white adipose tissue was augmented in hypoxia. These findings not only suggest that protection from metabolic disease offered by vegetable consumption may, in part, be mediated through the effects of nitrate on white adipose tissue, but also, since hypoxia is a serious co-morbidity affecting adipose tissue in obese individuals, that nitrate may be effective in promoting the browning of adipose tissue to improve metabolic fitness.

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