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Aerobic glycolysis: A study of human articular cartilage
Author(s) -
Nahir A. M.
Publication year - 1987
Publication title -
cell biochemistry and function
Language(s) - English
Resource type - Journals
SCImago Journal Rank - 0.933
H-Index - 61
eISSN - 1099-0844
pISSN - 0263-6484
DOI - 10.1002/cbf.290050205
Subject(s) - pyruvate dehydrogenase complex , glycolysis , pyruvate decarboxylation , citric acid cycle , biochemistry , dehydrogenase , chemistry , lactate dehydrogenase , cofactor , cartilage , fatty acid , beta oxidation , anaerobic glycolysis , enzyme , biology , anatomy
Cartilage generally is one of those tissues that exhibit aerobic glycolysis. In a previous study on rat epiphyseal cartilage it had been suggested that this phenomenon is related to potentially excessive production of pyruvate and acetyl coenzyme A, the latter derived from fatty acid oxidation and inhibiting pyruvate dehydrogenase activity. The present study has shown that, in human articular cartilage, the contribution from fatty acid oxidation is too small to account for this phenomenon although the total potential production of pyruvate could still be in excess of the requirements for acetyl coenzyme A for the Krebs' cycle. Of greater relevance may be the apparent correlations that have been found between the activities of lactate and glyceraldehyde 3‐phosphate dehydrogenases ( r = 0·82: 0·01 > p > 0·001) and between those of lactate and glucose 6‐phosphate dehydrogenases ( r = 0·92; p < 0·001).