期刊名称：Journal of Nutritional Science and Vitaminology
印刷版ISSN：0301-4800
电子版ISSN：1881-7742
出版年度：1992
卷号：38
期号：5
页码：523-528
DOI：10.3177/jnsv.38.523
出版社：Center for Academic Publications Japan
摘要：The effects of dietary protein restriction on skeletal muscle fibers were studied according to morphological and biochemical ap-proaches. Protein and DNA content of quadriceps muscles from young adult rats were decreased by the low protein and protein-free diet. Morphological examination demonstrated that there was a significant decrease in the size of muscle fibers without change in their numbers due to protein restriction. The protein/DNA ratio, accepted as an index of cell size in biochemical approaches, was compared with cell size on photo-micrographs. Actual fiber size appeared much smaller than that indicated by the protein/DNA ratio.
关键词：dietary protein restriction;low protein diet;protein-free diet;morphological change;number of muscle fiber;muscle fiber size;skeletal muscle;quadriceps muscle;protein content;DNA content
