Abstract
Morphometric and biochemical techniques were used to analyze hepatic glycogen, endoplasmic reticulum, and mitochondrial matrix granules in rats treated with compound 48/80 to induce an anaphylactic-like state of shock. Thirty minutes after insult there was a significant decrease in glycogen and mitochondrial matrix granules, an increase in rough endoplasmic reticulum (RER), and no change in smooth endoplasmic reticulum (SER). Less glycogen in experimental rats substantiated a previously described glycogenolytic response to compound 48/80. The decrease in matrix granules implies a loss and/or shift in intramitochondrial calcium as occurs in epinephrine-induced glycogenolysis in the rat. Since other glycogenolytic agents, e.g. glucagon, and starvation stimulate an increase in SER presumably from RER, the present morphological data suggest the increase in RER may precede proliferation of SER from RER.
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