[Structural and functional heterogeneity of cardiomyocytes during hemodynamic loading of the rat heart].
Ultrastructural studies of cardiomyocytes during experimental aorta coarctation enabled one to divide them into 6 types: with mitochondrial swelling and enlargement of the sarcoplasmic reticulum; with primary damage to myofibrils; with disintegration of ultrastructure because of edema; with hypertrophy and hyperplasia of ultrastructures; without essential changes in organelles; and with concomitant changes in mitochondria and myofibrils. Such different reactions of cardiomyocytes are regarded as an adaptation mechanism that ensures the maintenance of heart function under extreme conditions.
D000818:Animals; D001024:Aortic Valve Stenosis / Q000473:pathology*; D005260:Female; D008297:Male; D008933:Mitochondrial Swelling; D009206:Myocardium / Q000648:ultrastructure*; D051381:Rats; D012519:Sarcoplasmic Reticulum / Q000648:ultrastructure
O strukturno-funktsional'noĭ geterogennosti kardiomiotsitov pri gemodinamicheskoĭ peregruzke serdtsa u krys.