Brown adipose tissue thermogenesis among a small sample of reindeer herders from sub-Arctic Finland.

ABSTRACT:

Introduction

Interest in human physiological responses to cold stress have seen a resurgence in recent years with a focus on brown adipose tissue (BAT), a mitochondria dense fat specialized for heat production. However, a majority of the work examining BAT has been conducted among temperate climate populations.

Methods

To expand our understanding of BAT thermogenesis in a cold climate population, we measured, using indirect calorimetry and thermal imaging, metabolic rate and body surface temperatures of BAT-positive and BAT-negative regions at room temperature, and mild cold exposure of resting participants from a small sample of reindeer herders (N = 22, 6 females) from sub-Arctic Finland.

Results

We found that most herders experienced a significant mean 8.7% increas

SUBMITTER: Ocobock C 

PROVIDER: S-EPMC9022279 | biostudies-literature | 2022 Apr

REPOSITORIES: biostudies-literature