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Barrie SE, Harris P. Myocardial enzyme activities in guinea pigs during development. Am J Physiol. 1977;233(6):H707-10doi: 10.1152/ajpheart.1977.233.6.H707.
Barrie, S. E., & Harris, P. (1977). Myocardial enzyme activities in guinea pigs during development. The American journal of physiology, 233(6), H707-10. https://doi.org/10.1152/ajpheart.1977.233.6.H707
Barrie, S E, and Harris, P. "Myocardial enzyme activities in guinea pigs during development." The American journal of physiology vol. 233,6 (1977): H707-10. doi: https://doi.org/10.1152/ajpheart.1977.233.6.H707
Barrie SE, Harris P. Myocardial enzyme activities in guinea pigs during development. Am J Physiol. 1977 Dec;233(6):H707-10. doi: 10.1152/ajpheart.1977.233.6.H707. PMID: 596469.
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Am J Physiol. 1977 Dec;233(6):H707-10. doi: 10.1152/ajpheart.1977.233.6.H707.

Myocardial enzyme activities in guinea pigs during development.

The American journal of physiology

S E Barrie, P Harris

PMID: 596469 DOI: 10.1152/ajpheart.1977.233.6.H707

Abstract

The activities of hexokinase, glucose-6-phosphate dehydrogenase, and glycolytic enzymes were higher in the fetal myocardium of the guinea pig than at birth and fell progressively during the 1st mo of life. The alphaHBDH/LDH ratio of H to M subunits of lactate dehydrogenase, was low in the fetus and continued to rise during the 1st mo after birth. The distinction between the left and right ventricular activities of lactate dehydrogenase, which is clear in adult guinea pigs, was absent in the fetus and appeared during postnatal development. Glycogen phosphorylase activity was low in the fetus and at birth. The activities of beta-hydroxyacylcoenzyme A dehydrogenase, succinate dehydrogenase, malate dehydrogenase, and aspartate aminotransferase were low in the fetus, but had reached, or even temporarily exceeded, normal adult levels at birth. Palmitylcarnitine transferase activity was also low in the fetal heart compared with the newborn but continued to increase substantially during the first 2 wk after birth.

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