Rat liver alterations after chronic treatment with hexachlorobenzene.

Autor: Böger, Angelika, Koss, Günter, Koransky, Wolfgang, Naumann, Roswitha, Frenzel, Hartmut
Zdroj: Virchows Archiv A Pathological Anatomy & Histology; 1979, Vol. 382 Issue 2, p127-137, 11p
Abstrakt: Groups of female rats were treated orally with 0.5, 2.0, 8.0, and 32 mg/kg hexachlorobenzene twice a week for 203 days. The liver content of hexachlorobenzene was found to be dose-dependent. In the animals treated with the highest dose the concentration was 273 μg/g hexachlorobenzene. In the fresh and fixed hepatic tissue of the treated animals pink fluorescence was observed. Electron microscopy revealed a dose dependent enlargement of all hepatocytes due to proliferation of the SER in the centrolobular area or to increased glycogen deposits ( β- or α-particles) and SER in the intermediary and periportal area. Numerous porphyrin deposits and siderosomes, intimate disorganisation and moderate dislocation of the RER and a moderate enlargement of bizarre-shaped mitochondria were recognized. The relationship between porphyrin crystals and mitochondria on the one hand and between SER and glycogen deposits on the other is discussed. [ABSTRACT FROM AUTHOR]
Databáze: Complementary Index