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Chick skeletal muscle proteolysis in vitro increased by corticosterone
A Ohtsuka1, H Tanaka, K Hizaki
1Faculty of Agriculture, Department of Biochemical Science and Technology, Kagoshima University, Japan. ohtsuka@chem.agri.kagoshima-u.ac.jp
Bioscience, Biotechnology, and Biochemistry
|November 7, 1998
Abstract:
Six-day-old chick skeletal muscle (extensor digitorum longus) was incubated in the presence of corticosterone (CTC; 0, 3, 30, and 300 ng/ml) for 2 h at 37 degrees C. Tyrosine and N (tau)-methylhistidine releases, as indices of total muscle and myofibrillar proteolysis, were increased by CTC but with different dose responses, indicating an independent regulation of myofibrillar and non-myofibrillar protein degradation.