Effect of low doses of bezafibrate and fenofibrate on liver 2-oxo-glutarate dehydrogenase complex in low-protein diet fed rats

Multienzyme 2-oxoglutarate complex (2-OGDH) together with branched chain ?-ketoacid dehydrogenase (BCKDH) and pyruvate dehydrogenase  belong to the family of mitochondrial 2-oxoacid dehydrogenases. Hypolipidemic drugs, bezafibrate and fenofibrate, up-regulate liver BCKDH. The present study has been...

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Main Author: Malgorzata Elzbieta Knapik-Czajka
Format: Article
Language:English
Published: Bangladesh Pharmacological Society 2015-07-01
Series:Bangladesh Journal of Pharmacology
Subjects:
Online Access:https://www.banglajol.info/index.php/BJP/article/view/23101
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author Malgorzata Elzbieta Knapik-Czajka
author_facet Malgorzata Elzbieta Knapik-Czajka
author_sort Malgorzata Elzbieta Knapik-Czajka
collection DOAJ
description Multienzyme 2-oxoglutarate complex (2-OGDH) together with branched chain ?-ketoacid dehydrogenase (BCKDH) and pyruvate dehydrogenase  belong to the family of mitochondrial 2-oxoacid dehydrogenases. Hypolipidemic drugs, bezafibrate and fenofibrate, up-regulate liver BCKDH. The present study has been undertaken to determine the effect of low doses of bezafibrate and fenofibrate on liver 2-OGDH. Fibrates were administrated to rats fed low-protein diet at 5, 10 or 20 mg/kg. In rats treated with increasing doses of bezafibrate 2-OGDH activity increased by 7, 35 and 42%, while in rats administered with fenofibrate by 8, 18, and 56% (p<0.05 for bezafibrate 10 and 20, and fenofibrate 20 mg/kg). Changes in 2-OGDH activity did not correspond with changes in mRNA levels of the complex enzymes. Moreover, mRNA levels of PPAR? remained unaltered. It is conceivable that stimulation of 2-OGDH activity by low doses of fibrates is the result of post-transcriptional events and may have a significant effect on liver metabolism.
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spelling doaj.art-34b4993ac8c3451eac9b0bdcf3a027382022-12-22T03:04:58ZengBangladesh Pharmacological SocietyBangladesh Journal of Pharmacology1991-00882015-07-01103Effect of low doses of bezafibrate and fenofibrate on liver 2-oxo-glutarate dehydrogenase complex in low-protein diet fed ratsMalgorzata Elzbieta Knapik-Czajka0Department of Analytical Biochemistry, Faculty of Pharmacy, Jagiellonian University Medical College, KrakowMultienzyme 2-oxoglutarate complex (2-OGDH) together with branched chain ?-ketoacid dehydrogenase (BCKDH) and pyruvate dehydrogenase  belong to the family of mitochondrial 2-oxoacid dehydrogenases. Hypolipidemic drugs, bezafibrate and fenofibrate, up-regulate liver BCKDH. The present study has been undertaken to determine the effect of low doses of bezafibrate and fenofibrate on liver 2-OGDH. Fibrates were administrated to rats fed low-protein diet at 5, 10 or 20 mg/kg. In rats treated with increasing doses of bezafibrate 2-OGDH activity increased by 7, 35 and 42%, while in rats administered with fenofibrate by 8, 18, and 56% (p<0.05 for bezafibrate 10 and 20, and fenofibrate 20 mg/kg). Changes in 2-OGDH activity did not correspond with changes in mRNA levels of the complex enzymes. Moreover, mRNA levels of PPAR? remained unaltered. It is conceivable that stimulation of 2-OGDH activity by low doses of fibrates is the result of post-transcriptional events and may have a significant effect on liver metabolism.https://www.banglajol.info/index.php/BJP/article/view/23101BezafibrateFenofibrate2-Oxoglutarate dehydrogenase
spellingShingle Malgorzata Elzbieta Knapik-Czajka
Effect of low doses of bezafibrate and fenofibrate on liver 2-oxo-glutarate dehydrogenase complex in low-protein diet fed rats
Bangladesh Journal of Pharmacology
Bezafibrate
Fenofibrate
2-Oxoglutarate dehydrogenase
title Effect of low doses of bezafibrate and fenofibrate on liver 2-oxo-glutarate dehydrogenase complex in low-protein diet fed rats
title_full Effect of low doses of bezafibrate and fenofibrate on liver 2-oxo-glutarate dehydrogenase complex in low-protein diet fed rats
title_fullStr Effect of low doses of bezafibrate and fenofibrate on liver 2-oxo-glutarate dehydrogenase complex in low-protein diet fed rats
title_full_unstemmed Effect of low doses of bezafibrate and fenofibrate on liver 2-oxo-glutarate dehydrogenase complex in low-protein diet fed rats
title_short Effect of low doses of bezafibrate and fenofibrate on liver 2-oxo-glutarate dehydrogenase complex in low-protein diet fed rats
title_sort effect of low doses of bezafibrate and fenofibrate on liver 2 oxo glutarate dehydrogenase complex in low protein diet fed rats
topic Bezafibrate
Fenofibrate
2-Oxoglutarate dehydrogenase
url https://www.banglajol.info/index.php/BJP/article/view/23101
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