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  • 1
    ISSN: 0003-276X
    Keywords: Life and Medical Sciences ; Cell & Developmental Biology
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Medicine
    Notes: Female mice of a Swiss albino stock were fed a high-fat, low-protein, hypolipotropic diet which produces rapid cardiovascular lesions in this stock of mice. Half of the animals were killed after 45 days and the others were placed back on a diet of normal laboratory chow and killed after one, two and three weeks of refeeding.In animals killed after receiving the experimental diet for 45 days small, focal deposits of hyalin in media of large coronary arteries of the right ventricle was the major change.During the first week of recovery (fed a normal diet) the incidence and severity of arterial lesions increased and within individual hearts arteries of all sizes and in both atria and both ventricles were involved. Following hyalinization an acute arteritis developed that involved all layers of the arterial wall and extended into the perivascular space.After two and three weeks recovery the coronary arteries were characterized by a periarterial fibrosis and by a decrease or absence of the leucocytic reaction. A subendothelial hyperplasia of smooth muscle, arranged longitudinally, was accompanied by an increase in reticular and collagenous fibers. Circular smooth muscle in the media was also hyperplastic.
    Additional Material: 1 Tab.
    Type of Medium: Electronic Resource
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