The effects of wintertime undernutrition on plasma leptin and insulin levels in an arctic ruminant, the reindeer
We examined the effects of prolonged undernutrition on plasma leptin and insulin levels and some serum protein metabolites in reindeer (Rangifer tarandus tarandus L.) during winter and spring. The reindeer (male < 1 year) were fed their preferred winter feed, low-protein lichen ad libitum for 5 w...
Published in: | Comparative Biochemistry and Physiology Part B: Biochemistry and Molecular Biology |
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Format: | Article in Journal/Newspaper |
Language: | English |
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Online Access: | https://research.ulapland.fi/fi/publications/c8dd7b01-6fca-49b4-9640-f49113cf3404 https://doi.org/10.1016/j.cbpb.2007.12.008 |
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ftulaplandcdispu:oai:lacris.ulapland.fi:publications/c8dd7b01-6fca-49b4-9640-f49113cf3404 2024-05-19T07:33:14+00:00 The effects of wintertime undernutrition on plasma leptin and insulin levels in an arctic ruminant, the reindeer Soppela, Päivi Saarela, Seppo Heiskari, Ulla Nieminen, Mauri 2008-04-01 https://research.ulapland.fi/fi/publications/c8dd7b01-6fca-49b4-9640-f49113cf3404 https://doi.org/10.1016/j.cbpb.2007.12.008 eng eng https://research.ulapland.fi/fi/publications/c8dd7b01-6fca-49b4-9640-f49113cf3404 info:eu-repo/semantics/closedAccess Soppela , P , Saarela , S , Heiskari , U & Nieminen , M 2008 , ' The effects of wintertime undernutrition on plasma leptin and insulin levels in an arctic ruminant, the reindeer ' , Comparative Biochemistry and Physiology - B Biochemistry and Molecular Biology , vol. 149 , no. 4 , pp. 613-621 . https://doi.org/10.1016/j.cbpb.2007.12.008 Arctic Body weight Feed intake Insulin Leptin Reindeer Ruminant Season /dk/atira/pure/person/fieldofscience2010/1/18/4 name=Genetics developmental biology physiology article 2008 ftulaplandcdispu https://doi.org/10.1016/j.cbpb.2007.12.008 2024-04-28T23:49:42Z We examined the effects of prolonged undernutrition on plasma leptin and insulin levels and some serum protein metabolites in reindeer (Rangifer tarandus tarandus L.) during winter and spring. The reindeer (male < 1 year) were fed their preferred winter feed, low-protein lichen ad libitum for 5 weeks, followed by 40% restriction of energy for 8 weeks and refeeding with high-protein pellets for 6 weeks. The control group received high-protein reindeer pellets ad libitum throughout the experiment. Plasma leptin decreased by 46% and insulin by 54% in the lichen group already during the ad libitum period between January and February, with parallel decreases in body weight, serum total proteins, albumin and urea. Leptin remained low during most of the energy restriction period in March and April, but increased at the end of April while body weight decreased. During the refeeding period in May and June, the body weight and insulin of the lichen group increased in parallel with total proteins and urea, but leptin remained unchanged. Similar significant reductions in plasma leptin (40%) as in the lichen group also took place in the control group fed high-protein pellets ad libitum in January and February, although their feed intake, serum total proteins and body weight remained unchanged. The results show that leptin decreases in reindeer during mid-winter, independent of food or protein intake, and suggest that the decrease may be cued by seasonal factors such as the short photoperiod. Article in Journal/Newspaper Arctic Arctic Rangifer tarandus LaCRIS - University of Lapland Current Research System Comparative Biochemistry and Physiology Part B: Biochemistry and Molecular Biology 149 4 613 621 |
institution |
Open Polar |
collection |
LaCRIS - University of Lapland Current Research System |
op_collection_id |
ftulaplandcdispu |
language |
English |
topic |
Arctic Body weight Feed intake Insulin Leptin Reindeer Ruminant Season /dk/atira/pure/person/fieldofscience2010/1/18/4 name=Genetics developmental biology physiology |
spellingShingle |
Arctic Body weight Feed intake Insulin Leptin Reindeer Ruminant Season /dk/atira/pure/person/fieldofscience2010/1/18/4 name=Genetics developmental biology physiology Soppela, Päivi Saarela, Seppo Heiskari, Ulla Nieminen, Mauri The effects of wintertime undernutrition on plasma leptin and insulin levels in an arctic ruminant, the reindeer |
topic_facet |
Arctic Body weight Feed intake Insulin Leptin Reindeer Ruminant Season /dk/atira/pure/person/fieldofscience2010/1/18/4 name=Genetics developmental biology physiology |
description |
We examined the effects of prolonged undernutrition on plasma leptin and insulin levels and some serum protein metabolites in reindeer (Rangifer tarandus tarandus L.) during winter and spring. The reindeer (male < 1 year) were fed their preferred winter feed, low-protein lichen ad libitum for 5 weeks, followed by 40% restriction of energy for 8 weeks and refeeding with high-protein pellets for 6 weeks. The control group received high-protein reindeer pellets ad libitum throughout the experiment. Plasma leptin decreased by 46% and insulin by 54% in the lichen group already during the ad libitum period between January and February, with parallel decreases in body weight, serum total proteins, albumin and urea. Leptin remained low during most of the energy restriction period in March and April, but increased at the end of April while body weight decreased. During the refeeding period in May and June, the body weight and insulin of the lichen group increased in parallel with total proteins and urea, but leptin remained unchanged. Similar significant reductions in plasma leptin (40%) as in the lichen group also took place in the control group fed high-protein pellets ad libitum in January and February, although their feed intake, serum total proteins and body weight remained unchanged. The results show that leptin decreases in reindeer during mid-winter, independent of food or protein intake, and suggest that the decrease may be cued by seasonal factors such as the short photoperiod. |
format |
Article in Journal/Newspaper |
author |
Soppela, Päivi Saarela, Seppo Heiskari, Ulla Nieminen, Mauri |
author_facet |
Soppela, Päivi Saarela, Seppo Heiskari, Ulla Nieminen, Mauri |
author_sort |
Soppela, Päivi |
title |
The effects of wintertime undernutrition on plasma leptin and insulin levels in an arctic ruminant, the reindeer |
title_short |
The effects of wintertime undernutrition on plasma leptin and insulin levels in an arctic ruminant, the reindeer |
title_full |
The effects of wintertime undernutrition on plasma leptin and insulin levels in an arctic ruminant, the reindeer |
title_fullStr |
The effects of wintertime undernutrition on plasma leptin and insulin levels in an arctic ruminant, the reindeer |
title_full_unstemmed |
The effects of wintertime undernutrition on plasma leptin and insulin levels in an arctic ruminant, the reindeer |
title_sort |
effects of wintertime undernutrition on plasma leptin and insulin levels in an arctic ruminant, the reindeer |
publishDate |
2008 |
url |
https://research.ulapland.fi/fi/publications/c8dd7b01-6fca-49b4-9640-f49113cf3404 https://doi.org/10.1016/j.cbpb.2007.12.008 |
genre |
Arctic Arctic Rangifer tarandus |
genre_facet |
Arctic Arctic Rangifer tarandus |
op_source |
Soppela , P , Saarela , S , Heiskari , U & Nieminen , M 2008 , ' The effects of wintertime undernutrition on plasma leptin and insulin levels in an arctic ruminant, the reindeer ' , Comparative Biochemistry and Physiology - B Biochemistry and Molecular Biology , vol. 149 , no. 4 , pp. 613-621 . https://doi.org/10.1016/j.cbpb.2007.12.008 |
op_relation |
https://research.ulapland.fi/fi/publications/c8dd7b01-6fca-49b4-9640-f49113cf3404 |
op_rights |
info:eu-repo/semantics/closedAccess |
op_doi |
https://doi.org/10.1016/j.cbpb.2007.12.008 |
container_title |
Comparative Biochemistry and Physiology Part B: Biochemistry and Molecular Biology |
container_volume |
149 |
container_issue |
4 |
container_start_page |
613 |
op_container_end_page |
621 |
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