Data from: Oxidation of linoleic and palmitic acid in pre-hibernating and hibernating common noctule bats revealed by 13C breath testing
Mammals fuel hibernation by oxidizing saturated and unsaturated fatty acids from triacylglycerols in adipocytes, yet the relative importance of these two categories as an oxidative fuel may change during hibernation. We studied the selective use of fatty acids as an oxidative fuel in noctule bats (...
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ftzenodo:oai:zenodo.org:5003883 2024-09-15T18:27:23+00:00 Data from: Oxidation of linoleic and palmitic acid in pre-hibernating and hibernating common noctule bats revealed by 13C breath testing Weise, Elisabeth Voigt, Christian C. 2017-12-15 https://doi.org/10.5061/dryad.hr744 unknown Zenodo https://doi.org/10.1242/jeb.168096 https://zenodo.org/communities/dryad https://doi.org/10.5061/dryad.hr744 oai:zenodo.org:5003883 info:eu-repo/semantics/openAccess Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode oxidative fuel Fatty Acid Metabolism Nyctalus noctula hibernation energetics info:eu-repo/semantics/other 2017 ftzenodo https://doi.org/10.5061/dryad.hr74410.1242/jeb.168096 2024-07-26T08:48:26Z Mammals fuel hibernation by oxidizing saturated and unsaturated fatty acids from triacylglycerols in adipocytes, yet the relative importance of these two categories as an oxidative fuel may change during hibernation. We studied the selective use of fatty acids as an oxidative fuel in noctule bats ( Nyctalus noctula ). Pre-hibernating noctule bats that were fed 13C-enriched linoleic acid (LA) showed 12 times higher tracer oxidation rates compared to conspecifics fed 13C-enriched palmitic acid (PA). After this experiment, we supplemented the diet of bats with the same fatty acids on 5 subsequent days to enrich their fat depots with the respective tracer. We then compared the excess 13C enrichment (APE) in breath of bats for torpor and arousal events during early and late hibernation. We observed higher APE values in breath of bats fed 13C-enriched LA than in bats fed 13C-enriched PA for both states, torpor and arousal, and also for both periods. Thus, hibernating bats oxidized selectively endogenous LA instead of PA, most likely because of faster transportation rates of PUFA compared with SFA. We did not observe changes in APE values in the breath of torpid animals between early and late hibernation. Skin temperature of torpid animals increased by 0.7oC between early and late hibernation in bats fed PA, whereas it decreased by -0.8oC in bats fed LA, highlighting that endogenous LA may fulfil two functions when available in excess: serving as an oxidative fuel and supporting cell membrane functionality. Data_RosnerVoigt Metabolic rate, APE values and TOR for pre-hibernating common noctule bats (Fig. 1), body temperature, metabolci rate and APE values for hibernating noctule bats (early Fig. 2, late Fig. 3) Other/Unknown Material Nyctalus noctula Zenodo |
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oxidative fuel Fatty Acid Metabolism Nyctalus noctula hibernation energetics |
spellingShingle |
oxidative fuel Fatty Acid Metabolism Nyctalus noctula hibernation energetics Weise, Elisabeth Voigt, Christian C. Data from: Oxidation of linoleic and palmitic acid in pre-hibernating and hibernating common noctule bats revealed by 13C breath testing |
topic_facet |
oxidative fuel Fatty Acid Metabolism Nyctalus noctula hibernation energetics |
description |
Mammals fuel hibernation by oxidizing saturated and unsaturated fatty acids from triacylglycerols in adipocytes, yet the relative importance of these two categories as an oxidative fuel may change during hibernation. We studied the selective use of fatty acids as an oxidative fuel in noctule bats ( Nyctalus noctula ). Pre-hibernating noctule bats that were fed 13C-enriched linoleic acid (LA) showed 12 times higher tracer oxidation rates compared to conspecifics fed 13C-enriched palmitic acid (PA). After this experiment, we supplemented the diet of bats with the same fatty acids on 5 subsequent days to enrich their fat depots with the respective tracer. We then compared the excess 13C enrichment (APE) in breath of bats for torpor and arousal events during early and late hibernation. We observed higher APE values in breath of bats fed 13C-enriched LA than in bats fed 13C-enriched PA for both states, torpor and arousal, and also for both periods. Thus, hibernating bats oxidized selectively endogenous LA instead of PA, most likely because of faster transportation rates of PUFA compared with SFA. We did not observe changes in APE values in the breath of torpid animals between early and late hibernation. Skin temperature of torpid animals increased by 0.7oC between early and late hibernation in bats fed PA, whereas it decreased by -0.8oC in bats fed LA, highlighting that endogenous LA may fulfil two functions when available in excess: serving as an oxidative fuel and supporting cell membrane functionality. Data_RosnerVoigt Metabolic rate, APE values and TOR for pre-hibernating common noctule bats (Fig. 1), body temperature, metabolci rate and APE values for hibernating noctule bats (early Fig. 2, late Fig. 3) |
format |
Other/Unknown Material |
author |
Weise, Elisabeth Voigt, Christian C. |
author_facet |
Weise, Elisabeth Voigt, Christian C. |
author_sort |
Weise, Elisabeth |
title |
Data from: Oxidation of linoleic and palmitic acid in pre-hibernating and hibernating common noctule bats revealed by 13C breath testing |
title_short |
Data from: Oxidation of linoleic and palmitic acid in pre-hibernating and hibernating common noctule bats revealed by 13C breath testing |
title_full |
Data from: Oxidation of linoleic and palmitic acid in pre-hibernating and hibernating common noctule bats revealed by 13C breath testing |
title_fullStr |
Data from: Oxidation of linoleic and palmitic acid in pre-hibernating and hibernating common noctule bats revealed by 13C breath testing |
title_full_unstemmed |
Data from: Oxidation of linoleic and palmitic acid in pre-hibernating and hibernating common noctule bats revealed by 13C breath testing |
title_sort |
data from: oxidation of linoleic and palmitic acid in pre-hibernating and hibernating common noctule bats revealed by 13c breath testing |
publisher |
Zenodo |
publishDate |
2017 |
url |
https://doi.org/10.5061/dryad.hr744 |
genre |
Nyctalus noctula |
genre_facet |
Nyctalus noctula |
op_relation |
https://doi.org/10.1242/jeb.168096 https://zenodo.org/communities/dryad https://doi.org/10.5061/dryad.hr744 oai:zenodo.org:5003883 |
op_rights |
info:eu-repo/semantics/openAccess Creative Commons Zero v1.0 Universal https://creativecommons.org/publicdomain/zero/1.0/legalcode |
op_doi |
https://doi.org/10.5061/dryad.hr74410.1242/jeb.168096 |
_version_ |
1810468610326396928 |