PMID: 9645295Jun 30, 1998Paper

Effect of starvation on the ultrastructure of hepatocytes of Hemidactylus frenatus (Lacertilia: Gekkonidae) with special emphasis on peroxisomes

Annals of Anatomy = Anatomischer Anzeiger : Official Organ of the Anatomische Gesellschaft
L de Brito-Gitirana, V Storch

Abstract

The influence of starvation on hepatocyte ultrastructure of Hemidactylus frenatus (Lacertilia: Gekkonidae) was investigated with special emphasis on peroxisomes. Wall lizards (Hemidactylus frenatus) were sacrificed after different periods of starvation and their livers were processed for standard transmission electron microscopy. Peroxisomes were demonstrated by means of the 3,3'-diaminobenzidine (DAB) cytochemical technique. A control group consisted of individuals which were fed "ad libitum" with Tenebrio molitor larvae. After a 7-day period of starvation the ultrastructural observation of hepatocytes disclosed a marked reduction of glycogen and lipid inclusions associated with fragmentation of the endoplasmic reticulum (ER). In later stages of starvation (14 and 25 days) ER proliferation and partial reconstruction of glycogen aggregations were observed. Increasing numbers of peroxisomes were arranged either in clusters (14 days) or in close association with mitochondria, lipid droplets and elongated crystalloid structures (25 days). Particularly noteworthy is the increasing cytochemical response of these organelles to the DAB reaction, suggesting greater metabolic activity of catalase. These data suggest that morphological a...Continue Reading

References

Mar 1, 1972·The Journal of Histochemistry and Cytochemistry : Official Journal of the Histochemistry Society·M E Beard
May 1, 1973·The Journal of Cell Biology·V H Black, B I Bogart
Feb 1, 1961·The Journal of Biophysical and Biochemical Cytology·J H LUFT

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Citations

Dec 12, 2002·Micron : the International Research and Review Journal for Microscopy·L de Brito-Gitirana, V Storch
Apr 10, 2010·Micron : the International Research and Review Journal for Microscopy·Adriana Alves PelliLycia de Brito-Gitirana

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