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Ultrastructure of the rat epiphyseal growth plate following chronic ethanol ingestion
Authors:Michael D. Fallon  Daniel T. Baran  R. Bruce Craig  Steven L. Teitelbaum
Affiliation:(1) Department of Pathology and Laboratory Medicine, Washington University School of Medicine, 63110 St. Louis, Missouri, USA;(2) Division of Bone and Mineral Metabolism, The Jewish Hospital of St. Louis, Washington University School of Medicine, 63110 St. Louis, Missouri, USA;(3) Present address: Department of Medicine, University of Rochester Medical Center, 14642 Rochester, NY, USA
Abstract:
Summary We have previously demonstrated that ethanol has a direct toxic effect on the rat skeleton characterized by decreased trabecular bone volume. In the present study, we examined the ultrastructure of the distal radial epiphyseal growth plates in these same animals. Eight weeks of ethanol administration to 12 male rats results in serum alcohol levels of 140 mg/dl but did not alter the width or light microscopic appearance of the radial growth plate. Quantitative electron microscopy failed to demonstrate morphologic evidence of toxicity in the skeletal cells. We conclude that although ethanol appears to have a direct effect on rat bone characterized by enhanced resorption, toxicity is not attended by ultrastructural changes in the skeletal cells.
Keywords:Alcohol  Electron microscopy  Growth plate
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