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Serumlipide, Blutgerinnung und Veränderungen an Blutgefäßen während intermittierender Cholesterinverfütterung an Kaninchen

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Research in Experimental Medicine

Zusammenfassung

Bei 20 Kaninchen wurde eine intermittierende Cholesterinfütterung ohne sonstige Maßnahmen über 13 Monate durchgeführt. Während der Fütterungsperioden kam es zu einem Ansteigen des Cholesterins, der Phosphatide und der Neutralfette im Serum. Gerinnungsfaktoren und Fibrinolyse zeigten während der Lipämie keine signifikante Änderung. Die morphologische Gefäßuntersuchung der getöteten Tiere ließ im Verlauf des Versuches ein stetiges Fortschreiten erkennen. Im Vordergrund stand die Atherombildung mit oder ohne Calciumeinlagerung, Bindegewebsvermehrung und Fibrosierung der Gefäßwand. Vereinzelt wurden Mikroinfarkte beobachtet, jedoch fehlten Thrombosen und Hämorrhagien. Bei den am spätesten getöteten Tieren ließen die Atherome vereinzelt Aufbrüche erkennen. Die Ergebnisse zeigen, daß trotz der Unterbrechung der Cholesterinfütterung mit zunehmender Beobachtungsdauer die Gefäßwandveränderungen am deutlichsten ausgeprägt waren.

Summary

A cholesterol enriched diet was intermittantly given to 20 rabbits over a period of 13 months, without any other treatment.

During this time cholesterol, phosphatides and neutral lipids showed a tendency to increase, whereas no significant change was observed in the blood coagulation factors and fibrinolysis.

The histological investigation of the blood vessels showed a progressive development of atheromas with and without calcification, an increasing amount of connective tissue and fibrosis of the vascular wall. In some cases microinfarctions were found but no thrombosis or haemorrhagia.

The results indicate, that even an interrupted cholesterol feeding causes a striking change of the vascular lesions, when observed over a long period.

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Die Untersuchungen wurden durch das freundliche Entgegenkommen des Instituts für Tierzucht und Tierernährung der Freien Universität Berlin (Direktor: Prof. Dr.Bronsch) ermöglicht.

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Pfleiderer, T., Kommerell, B., Wagener, H. et al. Serumlipide, Blutgerinnung und Veränderungen an Blutgefäßen während intermittierender Cholesterinverfütterung an Kaninchen. Z. Gesamte Exp. Med. 139, 122–138 (1965). https://doi.org/10.1007/BF02043930

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