Mitochondrial metabolism in blood more reliably predicts whole-animal energy needs compared to other tissues

Summary: Understanding energy metabolism in free-ranging animals is crucial for ecological studies. In birds, red blood cells (RBCs) offer a minimally invasive method to estimate metabolic rate (MR). In this study with European starlings Sturnus vulgaris, we examined how RBC oxygen consumption relat...
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Autor*in:	Stefania Casagrande [verfasserIn] Maciej Dzialo [verfasserIn] Lisa Trost [verfasserIn] Kasja Malkoc [verfasserIn] Edyta Teresa Sadowska [verfasserIn] Michaela Hau [verfasserIn] Barbara Pierce [verfasserIn] Scott McWilliams [verfasserIn] Ulf Bauchinger [verfasserIn]

Format:	E-Artikel
Sprache:	Englisch

Erschienen:	2023

Schlagwörter:	Ornithology Physiology Evolutionary biology

Übergeordnetes Werk:	In: iScience - Elsevier, 2019, 26(2023), 12, Seite 108321-
Übergeordnetes Werk:	volume:26 ; year:2023 ; number:12 ; pages:108321-

Links:	Link aufrufen Link aufrufen Link aufrufen Journal toc

DOI / URN:	10.1016/j.isci.2023.108321

Katalog-ID:	DOAJ099164035

Internformat


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520			\|a Summary: Understanding energy metabolism in free-ranging animals is crucial for ecological studies. In birds, red blood cells (RBCs) offer a minimally invasive method to estimate metabolic rate (MR). In this study with European starlings Sturnus vulgaris, we examined how RBC oxygen consumption relates to oxygen use in key tissues (brain, liver, heart, and pectoral muscle) and versus the whole organism measured at basal levels. The pectoral muscle accounted for 34%–42% of organismal MR, while the heart and liver, despite their high mass-specific metabolic rate, each contributed 2.5%–3.0% to organismal MR. Despite its low contribution to organismal MR (0.03%–0.04%), RBC MR best predicted organismal MR (r = 0.70). Oxygen consumption of the brain and pectoralis was also associated with whole-organism MR, unlike that of heart and liver. Overall, our findings demonstrate that the metabolism of a systemic tissue like blood is a superior proxy for organismal energy metabolism than that of other tissues.
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allfields	10.1016/j.isci.2023.108321 doi (DE-627)DOAJ099164035 (DE-599)DOAJd795d9661f5d4f99b95059ab2f5fedf9 DE-627 ger DE-627 rakwb eng Stefania Casagrande verfasserin aut Mitochondrial metabolism in blood more reliably predicts whole-animal energy needs compared to other tissues 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Summary: Understanding energy metabolism in free-ranging animals is crucial for ecological studies. In birds, red blood cells (RBCs) offer a minimally invasive method to estimate metabolic rate (MR). In this study with European starlings Sturnus vulgaris, we examined how RBC oxygen consumption relates to oxygen use in key tissues (brain, liver, heart, and pectoral muscle) and versus the whole organism measured at basal levels. The pectoral muscle accounted for 34%–42% of organismal MR, while the heart and liver, despite their high mass-specific metabolic rate, each contributed 2.5%–3.0% to organismal MR. Despite its low contribution to organismal MR (0.03%–0.04%), RBC MR best predicted organismal MR (r = 0.70). Oxygen consumption of the brain and pectoralis was also associated with whole-organism MR, unlike that of heart and liver. Overall, our findings demonstrate that the metabolism of a systemic tissue like blood is a superior proxy for organismal energy metabolism than that of other tissues. Ornithology Physiology Evolutionary biology Science Q Maciej Dzialo verfasserin aut Lisa Trost verfasserin aut Kasja Malkoc verfasserin aut Edyta Teresa Sadowska verfasserin aut Michaela Hau verfasserin aut Barbara Pierce verfasserin aut Scott McWilliams verfasserin aut Ulf Bauchinger verfasserin aut In iScience Elsevier, 2019 26(2023), 12, Seite 108321- (DE-627)1019532106 25890042 nnns volume:26 year:2023 number:12 pages:108321- https://doi.org/10.1016/j.isci.2023.108321 kostenfrei https://doaj.org/article/d795d9661f5d4f99b95059ab2f5fedf9 kostenfrei http://www.sciencedirect.com/science/article/pii/S2589004223023982 kostenfrei https://doaj.org/toc/2589-0042 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_171 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2110 GBV_ILN_2112 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4393 GBV_ILN_4700 AR 26 2023 12 108321-
spelling	10.1016/j.isci.2023.108321 doi (DE-627)DOAJ099164035 (DE-599)DOAJd795d9661f5d4f99b95059ab2f5fedf9 DE-627 ger DE-627 rakwb eng Stefania Casagrande verfasserin aut Mitochondrial metabolism in blood more reliably predicts whole-animal energy needs compared to other tissues 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Summary: Understanding energy metabolism in free-ranging animals is crucial for ecological studies. In birds, red blood cells (RBCs) offer a minimally invasive method to estimate metabolic rate (MR). In this study with European starlings Sturnus vulgaris, we examined how RBC oxygen consumption relates to oxygen use in key tissues (brain, liver, heart, and pectoral muscle) and versus the whole organism measured at basal levels. The pectoral muscle accounted for 34%–42% of organismal MR, while the heart and liver, despite their high mass-specific metabolic rate, each contributed 2.5%–3.0% to organismal MR. Despite its low contribution to organismal MR (0.03%–0.04%), RBC MR best predicted organismal MR (r = 0.70). Oxygen consumption of the brain and pectoralis was also associated with whole-organism MR, unlike that of heart and liver. Overall, our findings demonstrate that the metabolism of a systemic tissue like blood is a superior proxy for organismal energy metabolism than that of other tissues. Ornithology Physiology Evolutionary biology Science Q Maciej Dzialo verfasserin aut Lisa Trost verfasserin aut Kasja Malkoc verfasserin aut Edyta Teresa Sadowska verfasserin aut Michaela Hau verfasserin aut Barbara Pierce verfasserin aut Scott McWilliams verfasserin aut Ulf Bauchinger verfasserin aut In iScience Elsevier, 2019 26(2023), 12, Seite 108321- (DE-627)1019532106 25890042 nnns volume:26 year:2023 number:12 pages:108321- https://doi.org/10.1016/j.isci.2023.108321 kostenfrei https://doaj.org/article/d795d9661f5d4f99b95059ab2f5fedf9 kostenfrei http://www.sciencedirect.com/science/article/pii/S2589004223023982 kostenfrei https://doaj.org/toc/2589-0042 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_171 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2110 GBV_ILN_2112 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4393 GBV_ILN_4700 AR 26 2023 12 108321-
allfields_unstemmed	10.1016/j.isci.2023.108321 doi (DE-627)DOAJ099164035 (DE-599)DOAJd795d9661f5d4f99b95059ab2f5fedf9 DE-627 ger DE-627 rakwb eng Stefania Casagrande verfasserin aut Mitochondrial metabolism in blood more reliably predicts whole-animal energy needs compared to other tissues 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Summary: Understanding energy metabolism in free-ranging animals is crucial for ecological studies. In birds, red blood cells (RBCs) offer a minimally invasive method to estimate metabolic rate (MR). In this study with European starlings Sturnus vulgaris, we examined how RBC oxygen consumption relates to oxygen use in key tissues (brain, liver, heart, and pectoral muscle) and versus the whole organism measured at basal levels. The pectoral muscle accounted for 34%–42% of organismal MR, while the heart and liver, despite their high mass-specific metabolic rate, each contributed 2.5%–3.0% to organismal MR. Despite its low contribution to organismal MR (0.03%–0.04%), RBC MR best predicted organismal MR (r = 0.70). Oxygen consumption of the brain and pectoralis was also associated with whole-organism MR, unlike that of heart and liver. Overall, our findings demonstrate that the metabolism of a systemic tissue like blood is a superior proxy for organismal energy metabolism than that of other tissues. Ornithology Physiology Evolutionary biology Science Q Maciej Dzialo verfasserin aut Lisa Trost verfasserin aut Kasja Malkoc verfasserin aut Edyta Teresa Sadowska verfasserin aut Michaela Hau verfasserin aut Barbara Pierce verfasserin aut Scott McWilliams verfasserin aut Ulf Bauchinger verfasserin aut In iScience Elsevier, 2019 26(2023), 12, Seite 108321- (DE-627)1019532106 25890042 nnns volume:26 year:2023 number:12 pages:108321- https://doi.org/10.1016/j.isci.2023.108321 kostenfrei https://doaj.org/article/d795d9661f5d4f99b95059ab2f5fedf9 kostenfrei http://www.sciencedirect.com/science/article/pii/S2589004223023982 kostenfrei https://doaj.org/toc/2589-0042 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_171 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2110 GBV_ILN_2112 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4393 GBV_ILN_4700 AR 26 2023 12 108321-
allfieldsGer	10.1016/j.isci.2023.108321 doi (DE-627)DOAJ099164035 (DE-599)DOAJd795d9661f5d4f99b95059ab2f5fedf9 DE-627 ger DE-627 rakwb eng Stefania Casagrande verfasserin aut Mitochondrial metabolism in blood more reliably predicts whole-animal energy needs compared to other tissues 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Summary: Understanding energy metabolism in free-ranging animals is crucial for ecological studies. In birds, red blood cells (RBCs) offer a minimally invasive method to estimate metabolic rate (MR). In this study with European starlings Sturnus vulgaris, we examined how RBC oxygen consumption relates to oxygen use in key tissues (brain, liver, heart, and pectoral muscle) and versus the whole organism measured at basal levels. The pectoral muscle accounted for 34%–42% of organismal MR, while the heart and liver, despite their high mass-specific metabolic rate, each contributed 2.5%–3.0% to organismal MR. Despite its low contribution to organismal MR (0.03%–0.04%), RBC MR best predicted organismal MR (r = 0.70). Oxygen consumption of the brain and pectoralis was also associated with whole-organism MR, unlike that of heart and liver. Overall, our findings demonstrate that the metabolism of a systemic tissue like blood is a superior proxy for organismal energy metabolism than that of other tissues. Ornithology Physiology Evolutionary biology Science Q Maciej Dzialo verfasserin aut Lisa Trost verfasserin aut Kasja Malkoc verfasserin aut Edyta Teresa Sadowska verfasserin aut Michaela Hau verfasserin aut Barbara Pierce verfasserin aut Scott McWilliams verfasserin aut Ulf Bauchinger verfasserin aut In iScience Elsevier, 2019 26(2023), 12, Seite 108321- (DE-627)1019532106 25890042 nnns volume:26 year:2023 number:12 pages:108321- https://doi.org/10.1016/j.isci.2023.108321 kostenfrei https://doaj.org/article/d795d9661f5d4f99b95059ab2f5fedf9 kostenfrei http://www.sciencedirect.com/science/article/pii/S2589004223023982 kostenfrei https://doaj.org/toc/2589-0042 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_171 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2110 GBV_ILN_2112 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4393 GBV_ILN_4700 AR 26 2023 12 108321-
allfieldsSound	10.1016/j.isci.2023.108321 doi (DE-627)DOAJ099164035 (DE-599)DOAJd795d9661f5d4f99b95059ab2f5fedf9 DE-627 ger DE-627 rakwb eng Stefania Casagrande verfasserin aut Mitochondrial metabolism in blood more reliably predicts whole-animal energy needs compared to other tissues 2023 Text txt rdacontent Computermedien c rdamedia Online-Ressource cr rdacarrier Summary: Understanding energy metabolism in free-ranging animals is crucial for ecological studies. In birds, red blood cells (RBCs) offer a minimally invasive method to estimate metabolic rate (MR). In this study with European starlings Sturnus vulgaris, we examined how RBC oxygen consumption relates to oxygen use in key tissues (brain, liver, heart, and pectoral muscle) and versus the whole organism measured at basal levels. The pectoral muscle accounted for 34%–42% of organismal MR, while the heart and liver, despite their high mass-specific metabolic rate, each contributed 2.5%–3.0% to organismal MR. Despite its low contribution to organismal MR (0.03%–0.04%), RBC MR best predicted organismal MR (r = 0.70). Oxygen consumption of the brain and pectoralis was also associated with whole-organism MR, unlike that of heart and liver. Overall, our findings demonstrate that the metabolism of a systemic tissue like blood is a superior proxy for organismal energy metabolism than that of other tissues. Ornithology Physiology Evolutionary biology Science Q Maciej Dzialo verfasserin aut Lisa Trost verfasserin aut Kasja Malkoc verfasserin aut Edyta Teresa Sadowska verfasserin aut Michaela Hau verfasserin aut Barbara Pierce verfasserin aut Scott McWilliams verfasserin aut Ulf Bauchinger verfasserin aut In iScience Elsevier, 2019 26(2023), 12, Seite 108321- (DE-627)1019532106 25890042 nnns volume:26 year:2023 number:12 pages:108321- https://doi.org/10.1016/j.isci.2023.108321 kostenfrei https://doaj.org/article/d795d9661f5d4f99b95059ab2f5fedf9 kostenfrei http://www.sciencedirect.com/science/article/pii/S2589004223023982 kostenfrei https://doaj.org/toc/2589-0042 Journal toc kostenfrei GBV_USEFLAG_A SYSFLAG_A GBV_DOAJ GBV_ILN_11 GBV_ILN_20 GBV_ILN_22 GBV_ILN_23 GBV_ILN_24 GBV_ILN_31 GBV_ILN_39 GBV_ILN_40 GBV_ILN_60 GBV_ILN_62 GBV_ILN_63 GBV_ILN_65 GBV_ILN_69 GBV_ILN_70 GBV_ILN_73 GBV_ILN_95 GBV_ILN_105 GBV_ILN_110 GBV_ILN_151 GBV_ILN_161 GBV_ILN_171 GBV_ILN_213 GBV_ILN_230 GBV_ILN_285 GBV_ILN_293 GBV_ILN_370 GBV_ILN_602 GBV_ILN_2001 GBV_ILN_2003 GBV_ILN_2005 GBV_ILN_2006 GBV_ILN_2007 GBV_ILN_2008 GBV_ILN_2009 GBV_ILN_2010 GBV_ILN_2011 GBV_ILN_2014 GBV_ILN_2015 GBV_ILN_2020 GBV_ILN_2021 GBV_ILN_2025 GBV_ILN_2026 GBV_ILN_2027 GBV_ILN_2038 GBV_ILN_2044 GBV_ILN_2048 GBV_ILN_2049 GBV_ILN_2050 GBV_ILN_2055 GBV_ILN_2059 GBV_ILN_2061 GBV_ILN_2064 GBV_ILN_2068 GBV_ILN_2088 GBV_ILN_2110 GBV_ILN_2112 GBV_ILN_2129 GBV_ILN_2143 GBV_ILN_2153 GBV_ILN_2190 GBV_ILN_2336 GBV_ILN_2470 GBV_ILN_2507 GBV_ILN_4012 GBV_ILN_4035 GBV_ILN_4037 GBV_ILN_4112 GBV_ILN_4125 GBV_ILN_4126 GBV_ILN_4249 GBV_ILN_4251 GBV_ILN_4305 GBV_ILN_4306 GBV_ILN_4307 GBV_ILN_4313 GBV_ILN_4322 GBV_ILN_4323 GBV_ILN_4324 GBV_ILN_4325 GBV_ILN_4326 GBV_ILN_4333 GBV_ILN_4335 GBV_ILN_4338 GBV_ILN_4367 GBV_ILN_4393 GBV_ILN_4700 AR 26 2023 12 108321-
language	English
source	In iScience 26(2023), 12, Seite 108321- volume:26 year:2023 number:12 pages:108321-
sourceStr	In iScience 26(2023), 12, Seite 108321- volume:26 year:2023 number:12 pages:108321-
format_phy_str_mv	Article
institution	findex.gbv.de
topic_facet	Ornithology Physiology Evolutionary biology Science Q
isfreeaccess_bool	true
container_title	iScience
authorswithroles_txt_mv	Stefania Casagrande @@aut@@ Maciej Dzialo @@aut@@ Lisa Trost @@aut@@ Kasja Malkoc @@aut@@ Edyta Teresa Sadowska @@aut@@ Michaela Hau @@aut@@ Barbara Pierce @@aut@@ Scott McWilliams @@aut@@ Ulf Bauchinger @@aut@@
publishDateDaySort_date	2023-01-01T00:00:00Z
hierarchy_top_id	1019532106
id	DOAJ099164035
language_de	englisch
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author	Stefania Casagrande
spellingShingle	Stefania Casagrande misc Ornithology misc Physiology misc Evolutionary biology misc Science misc Q Mitochondrial metabolism in blood more reliably predicts whole-animal energy needs compared to other tissues
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topic_title	Mitochondrial metabolism in blood more reliably predicts whole-animal energy needs compared to other tissues Ornithology Physiology Evolutionary biology
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title	Mitochondrial metabolism in blood more reliably predicts whole-animal energy needs compared to other tissues
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title_full	Mitochondrial metabolism in blood more reliably predicts whole-animal energy needs compared to other tissues
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author_browse	Stefania Casagrande Maciej Dzialo Lisa Trost Kasja Malkoc Edyta Teresa Sadowska Michaela Hau Barbara Pierce Scott McWilliams Ulf Bauchinger
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author-letter	Stefania Casagrande
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title_sort	mitochondrial metabolism in blood more reliably predicts whole-animal energy needs compared to other tissues
title_auth	Mitochondrial metabolism in blood more reliably predicts whole-animal energy needs compared to other tissues
abstract	Summary: Understanding energy metabolism in free-ranging animals is crucial for ecological studies. In birds, red blood cells (RBCs) offer a minimally invasive method to estimate metabolic rate (MR). In this study with European starlings Sturnus vulgaris, we examined how RBC oxygen consumption relates to oxygen use in key tissues (brain, liver, heart, and pectoral muscle) and versus the whole organism measured at basal levels. The pectoral muscle accounted for 34%–42% of organismal MR, while the heart and liver, despite their high mass-specific metabolic rate, each contributed 2.5%–3.0% to organismal MR. Despite its low contribution to organismal MR (0.03%–0.04%), RBC MR best predicted organismal MR (r = 0.70). Oxygen consumption of the brain and pectoralis was also associated with whole-organism MR, unlike that of heart and liver. Overall, our findings demonstrate that the metabolism of a systemic tissue like blood is a superior proxy for organismal energy metabolism than that of other tissues.
abstractGer	Summary: Understanding energy metabolism in free-ranging animals is crucial for ecological studies. In birds, red blood cells (RBCs) offer a minimally invasive method to estimate metabolic rate (MR). In this study with European starlings Sturnus vulgaris, we examined how RBC oxygen consumption relates to oxygen use in key tissues (brain, liver, heart, and pectoral muscle) and versus the whole organism measured at basal levels. The pectoral muscle accounted for 34%–42% of organismal MR, while the heart and liver, despite their high mass-specific metabolic rate, each contributed 2.5%–3.0% to organismal MR. Despite its low contribution to organismal MR (0.03%–0.04%), RBC MR best predicted organismal MR (r = 0.70). Oxygen consumption of the brain and pectoralis was also associated with whole-organism MR, unlike that of heart and liver. Overall, our findings demonstrate that the metabolism of a systemic tissue like blood is a superior proxy for organismal energy metabolism than that of other tissues.
abstract_unstemmed	Summary: Understanding energy metabolism in free-ranging animals is crucial for ecological studies. In birds, red blood cells (RBCs) offer a minimally invasive method to estimate metabolic rate (MR). In this study with European starlings Sturnus vulgaris, we examined how RBC oxygen consumption relates to oxygen use in key tissues (brain, liver, heart, and pectoral muscle) and versus the whole organism measured at basal levels. The pectoral muscle accounted for 34%–42% of organismal MR, while the heart and liver, despite their high mass-specific metabolic rate, each contributed 2.5%–3.0% to organismal MR. Despite its low contribution to organismal MR (0.03%–0.04%), RBC MR best predicted organismal MR (r = 0.70). Oxygen consumption of the brain and pectoralis was also associated with whole-organism MR, unlike that of heart and liver. Overall, our findings demonstrate that the metabolism of a systemic tissue like blood is a superior proxy for organismal energy metabolism than that of other tissues.
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title_short	Mitochondrial metabolism in blood more reliably predicts whole-animal energy needs compared to other tissues
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Mitochondrial metabolism in blood more reliably predicts whole-animal energy needs compared to other tissues

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