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  • 1
    ISSN: 1432-2161
    Keywords: Osteopoikilosis ; Osteopetrosis ; Melorheostosis ; Osteopathia striata ; Osteodystrophy
    Source: Springer Online Journal Archives 1860-2000
    Topics: Medicine
    Notes: Abstract We present clinical, laboratory, radiologic, genetic, and pathologic findings in a 49-year-old man with mixed-sclerosing-bone-dystrophy (MSBD), review the six cases previously reported as “MSBD”, and examine the nosology of this rare bone dysplasia. Our asymptomatic patient showed radiographic changes consistent with osteopoikilosis, osteopathia striata, and melorheostosis and had widespread osteosclerosis of the axial skeleton. Several previous reports of combined osteosclerotic disorders suggest the latter finding represents osteopetrosis, however, histologic examination of our patient's iliac crest excluded that diagnosis. Limited radiographic surveys of his eight children were unremarkable except for isolated bone islands in two sons. Literature review revealed that “MSBD” has actually been used generically to describe the association of a variety of osteosclerotic bone dysplasias when they occur together in a single patient.
    Type of Medium: Electronic Resource
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  • 2
    ISSN: 1432-0827
    Keywords: Alcohol ; Electron microscopy ; Growth plate
    Source: Springer Online Journal Archives 1860-2000
    Topics: Biology , Medicine , Physics
    Notes: 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.
    Type of Medium: Electronic Resource
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