Different mechanisms underlie the long‐term regulation of pyruvate dehydrogenase kinase (PDHK) by tri‐iodothyronine in heart and liver

Antibodies to purified recombinant PDHKII were used for ELISAs of PDHKII in mitochondrial extracts. In liver, hyperthyroidism elicited a 2.3‐fold increase in PDHK activity (P<0.01) which was accompanied by a significant 1.5‐fold (P<0.001) increase in the amount of mitochondrial immunor...

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Bibliografski detalji
Glavni autori: Priestman, D, Donald, E, Holness, M, al., E
Format: Journal article
Izdano: Wiley 1997
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author Priestman, D
Donald, E
Holness, M
al., E
author_facet Priestman, D
Donald, E
Holness, M
al., E
author_sort Priestman, D
collection OXFORD
description Antibodies to purified recombinant PDHKII were used for ELISAs of PDHKII in mitochondrial extracts. In liver, hyperthyroidism elicited a 2.3‐fold increase in PDHK activity (P<0.01) which was accompanied by a significant 1.5‐fold (P<0.001) increase in the amount of mitochondrial immunoreactive PDHKII. In contrast, despite a stable 2.0‐fold increase in cardiac PDHK activity (P<0.001), the amount of mitochondrial immunoreactive PDHKII in heart was unaffected by hyperthyroidism. The mechanisms for long‐term regulation of PDHK activity by thyroid hormones therefore differ fundamentally between heart and liver.
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spelling oxford-uuid:a9a19c94-c30c-402e-8dd5-2cbc5fa47adf2022-03-27T03:09:43ZDifferent mechanisms underlie the long‐term regulation of pyruvate dehydrogenase kinase (PDHK) by tri‐iodothyronine in heart and liverJournal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:a9a19c94-c30c-402e-8dd5-2cbc5fa47adfSymplectic Elements at OxfordWiley1997Priestman, DDonald, EHolness, Mal., EAntibodies to purified recombinant PDHKII were used for ELISAs of PDHKII in mitochondrial extracts. In liver, hyperthyroidism elicited a 2.3‐fold increase in PDHK activity (P<0.01) which was accompanied by a significant 1.5‐fold (P<0.001) increase in the amount of mitochondrial immunoreactive PDHKII. In contrast, despite a stable 2.0‐fold increase in cardiac PDHK activity (P<0.001), the amount of mitochondrial immunoreactive PDHKII in heart was unaffected by hyperthyroidism. The mechanisms for long‐term regulation of PDHK activity by thyroid hormones therefore differ fundamentally between heart and liver.
spellingShingle Priestman, D
Donald, E
Holness, M
al., E
Different mechanisms underlie the long‐term regulation of pyruvate dehydrogenase kinase (PDHK) by tri‐iodothyronine in heart and liver
title Different mechanisms underlie the long‐term regulation of pyruvate dehydrogenase kinase (PDHK) by tri‐iodothyronine in heart and liver
title_full Different mechanisms underlie the long‐term regulation of pyruvate dehydrogenase kinase (PDHK) by tri‐iodothyronine in heart and liver
title_fullStr Different mechanisms underlie the long‐term regulation of pyruvate dehydrogenase kinase (PDHK) by tri‐iodothyronine in heart and liver
title_full_unstemmed Different mechanisms underlie the long‐term regulation of pyruvate dehydrogenase kinase (PDHK) by tri‐iodothyronine in heart and liver
title_short Different mechanisms underlie the long‐term regulation of pyruvate dehydrogenase kinase (PDHK) by tri‐iodothyronine in heart and liver
title_sort different mechanisms underlie the long term regulation of pyruvate dehydrogenase kinase pdhk by tri iodothyronine in heart and liver
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