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...
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ftdoajarticles:oai:doaj.org/article:9c07cba42f55411b8655f2bb56b27eb3 2023-05-15T14:57:57+02:00 Brown adipose tissue thermogenesis among a small sample of reindeer herders from sub-Arctic Finland Cara Ocobock Päivi Soppela Minna Turunen Ville Stenbäck Karl-Heinz Herzig 2022-04-01T00:00:00Z https://doi.org/10.1186/s40101-022-00290-4 https://doaj.org/article/9c07cba42f55411b8655f2bb56b27eb3 EN eng BMC https://doi.org/10.1186/s40101-022-00290-4 https://doaj.org/toc/1880-6805 doi:10.1186/s40101-022-00290-4 1880-6805 https://doaj.org/article/9c07cba42f55411b8655f2bb56b27eb3 Journal of Physiological Anthropology, Vol 41, Iss 1, Pp 1-12 (2022) Brown adipose tissue Cold stress Non-shivering thermogenesis Metabolism Respiratory quotient Physical anthropology. Somatology GN49-298 article 2022 ftdoajarticles https://doi.org/10.1186/s40101-022-00290-4 2022-12-30T23:32:19Z 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% increase in metabolic rates, preferentially metabolized fatty acids, and maintained relatively warmer body surface temperatures at the supraclavicular region (known BAT location) compared to the sternum, which has no associated BAT. These results indicate that the herders in this sample exhibit active BAT thermogenesis in response to mild cold exposure. Conclusions This study adds to the rapidly growing body of work looking at the physiological and thermoregulatory significance of BAT and the important role it may play among cold stressed populations. Article in Journal/Newspaper Arctic Directory of Open Access Journals: DOAJ Articles Arctic Journal of Physiological Anthropology 41 1 |
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Open Polar |
collection |
Directory of Open Access Journals: DOAJ Articles |
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ftdoajarticles |
language |
English |
topic |
Brown adipose tissue Cold stress Non-shivering thermogenesis Metabolism Respiratory quotient Physical anthropology. Somatology GN49-298 |
spellingShingle |
Brown adipose tissue Cold stress Non-shivering thermogenesis Metabolism Respiratory quotient Physical anthropology. Somatology GN49-298 Cara Ocobock Päivi Soppela Minna Turunen Ville Stenbäck Karl-Heinz Herzig Brown adipose tissue thermogenesis among a small sample of reindeer herders from sub-Arctic Finland |
topic_facet |
Brown adipose tissue Cold stress Non-shivering thermogenesis Metabolism Respiratory quotient Physical anthropology. Somatology GN49-298 |
description |
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% increase in metabolic rates, preferentially metabolized fatty acids, and maintained relatively warmer body surface temperatures at the supraclavicular region (known BAT location) compared to the sternum, which has no associated BAT. These results indicate that the herders in this sample exhibit active BAT thermogenesis in response to mild cold exposure. Conclusions This study adds to the rapidly growing body of work looking at the physiological and thermoregulatory significance of BAT and the important role it may play among cold stressed populations. |
format |
Article in Journal/Newspaper |
author |
Cara Ocobock Päivi Soppela Minna Turunen Ville Stenbäck Karl-Heinz Herzig |
author_facet |
Cara Ocobock Päivi Soppela Minna Turunen Ville Stenbäck Karl-Heinz Herzig |
author_sort |
Cara Ocobock |
title |
Brown adipose tissue thermogenesis among a small sample of reindeer herders from sub-Arctic Finland |
title_short |
Brown adipose tissue thermogenesis among a small sample of reindeer herders from sub-Arctic Finland |
title_full |
Brown adipose tissue thermogenesis among a small sample of reindeer herders from sub-Arctic Finland |
title_fullStr |
Brown adipose tissue thermogenesis among a small sample of reindeer herders from sub-Arctic Finland |
title_full_unstemmed |
Brown adipose tissue thermogenesis among a small sample of reindeer herders from sub-Arctic Finland |
title_sort |
brown adipose tissue thermogenesis among a small sample of reindeer herders from sub-arctic finland |
publisher |
BMC |
publishDate |
2022 |
url |
https://doi.org/10.1186/s40101-022-00290-4 https://doaj.org/article/9c07cba42f55411b8655f2bb56b27eb3 |
geographic |
Arctic |
geographic_facet |
Arctic |
genre |
Arctic |
genre_facet |
Arctic |
op_source |
Journal of Physiological Anthropology, Vol 41, Iss 1, Pp 1-12 (2022) |
op_relation |
https://doi.org/10.1186/s40101-022-00290-4 https://doaj.org/toc/1880-6805 doi:10.1186/s40101-022-00290-4 1880-6805 https://doaj.org/article/9c07cba42f55411b8655f2bb56b27eb3 |
op_doi |
https://doi.org/10.1186/s40101-022-00290-4 |
container_title |
Journal of Physiological Anthropology |
container_volume |
41 |
container_issue |
1 |
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1766330044159885312 |