Morphometric analysis of the rabbit myocardium after chronic ethanol feeding — early capillary changes
- 1 January 1982
- journal article
- research article
- Published by Springer Nature in Basic Research in Cardiology
- Vol. 77 (1), 57-67
- https://doi.org/10.1007/bf01908131
Abstract
Male rabbits were fed with ethanol for 3 weeks. 10 ml of a 20% ethanol solution were applied daily with a stomach tube. The macroscopic, histologic and ultrastructural investigation of the hearts did not reveal any structural alterations. Morphometrically, the endothelial cells of the capillaries were changed, whereas the muscle cells did not show any abnormalities. The quantitative data indicate that the numerical density of endothelial cells is increased, whereas the volume density is not changed. This type of quantitative reaction pattern may be characterized as “proliferation” of endothelial cells. The proliferation is possibly related to ethanol-induced metabolic changes similar to chronic hypoxia. On the other hand, there is some evidence that the alteration is part of a general activation of mesenchymal cells in various organs after ethanol ingestion. The alteration is probably an early stage of the proliferation of capillaries. Männliche Kaninchen wurden 3 Wochen lang mit Äthanol gefüttert. 10 ml einer 20%igen Äthanollösung wurden täglich mit einer Schlundsonde verabreicht. Die makroskopische, mikroskopische und ultrastrukturelle Untersuchung der Herzen ergab keine eindeutigen strukturellen Veränderungen. Morphometrisch waren die Endothelzellen der Kapillaren verändert, während die Muskelzellen keine abnormen quantitativen Parameter aufwiesen. Die Daten zeigen, daß die numerische Dichte der Endothelzellen erhöht ist, während die Volumendichte nicht signifikant verändert ist. Diesen Typus eines quantitativen Reaktionsmusters kann man als „Proliferation” charakterisieren. Die Proliferation beruht möglicherweise auf Äthanol-induzierten metabolischen Veränderungen, die denen bei chronischer Hypoxie ähnlich sind. Andererseits gibt es Anhaltspunkte dafür, daß die Reaktion Teil einer allgemeinen Mesenchymaktivierung nach Alkoholgabe ist, die in verschiedenen Organen beobachtet werden kann. Die Veränderung entspricht wahrscheinlich der frühen Phase einer Kapillarproliferation.This publication has 38 references indexed in Scilit:
- Cardiac effects of acute ethanol ingestion unmasked by autonomic blockade.Circulation, 1979
- Alcoholic cardiomyopathy in mice myocardial glycogen, lipids and certain enzymesJournal of Molecular and Cellular Cardiology, 1977
- Intramyocardial small-vessel disease in chronic alcoholismAmerican Heart Journal, 1976
- Subacute myocardial hypoxia in the rat. An electron microscopic study of the left ventricular myocardiumJournal of Molecular and Cellular Cardiology, 1973
- Effects of thyroxin on ultrastructure of rat myocardial cells: A stereological studyJournal of Ultrastructure Research, 1973
- The effect of ingestion of ethyl alcohol, wine and beer on the myocardium of miceThe American Journal of Cardiology, 1971
- Effects of alcohol ingestion on the intercalated disc in the mouse heartCellular and Molecular Life Sciences, 1969
- Myocardial depression accompanying chronic consumption of alcoholAmerican Heart Journal, 1967
- THE DISTRIBUTION OF THE RATIO, IN A SINGLE NORMAL SAMPLE, OF RANGE TO STANDARD DEVIATIONBiometrika, 1954
- On a Test of Whether one of Two Random Variables is Stochastically Larger than the OtherThe Annals of Mathematical Statistics, 1947