Domonkos J, Heiner L, Vargha M
Acta Physiol Acad Sci Hung. 1975;46(3):219-25.
Subcellular distribution of choline and non-choline phosphatides has been studied in tetanic (fast-twitch) and tonic (slow-twitch) muscles of rabbits. The choline phosphatide content of the subcellular fraction including the sarcolemma was greater in the tetanic than in the tonic muscle. On the other hand, the choline phosphatide content of the mitochondria-free sarcoplasmic fraction was greater in the tonic than in the tetanic muscle. A greater amount of non-choline phosphatide was found in each subcellular fraction of the tonic muscle as compared with those of the tetanic one. There was more fatty aldehyde in the non-choline phosphatides of each subcellular fraction of the tetanic muscle, than in those of the tonic one, of this type being much smaller in the tetanic muscle. There is not such an expressed difference in the fatty aldehyde contents of choline phosphatides of the subcellular fractions between the two kinds of muscle.
已对家兔的强直(快肌)和紧张(慢肌)肌肉中胆碱磷脂和非胆碱磷脂的亚细胞分布进行了研究。包括肌膜在内的亚细胞组分中的胆碱磷脂含量在强直肌中比在紧张肌中更高。另一方面,无线粒体的肌浆组分中的胆碱磷脂含量在紧张肌中比在强直肌中更高。与强直肌相比,在紧张肌的每个亚细胞组分中发现了更多的非胆碱磷脂。强直肌的每个亚细胞组分的非胆碱磷脂中的脂肪醛比紧张肌的更多,而这种类型在强直肌中要少得多。两种肌肉的亚细胞组分的胆碱磷脂中的脂肪醛含量没有如此明显的差异。