Document Detail


Alterations of rat liver subsequent to heat overload.
MedLine Citation:
PMID:  580363     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Since pathological changes in the liver are among the consistent findings in humans subsequent to heatstroke, specimens were taken from the liver in rats during a study to assess the rat as a model for human heatstroke. Tissues from four groups of rats were processed for light and electron microscopy. The groups consisted of control rats, rats run to exhaustion at 5 C, rats exhausted at 26 C, and rats restrained at 41.5 C until their rectal temperatures reached 42.3 C. Exhaustive exercise at 5 C produced neither fatalities nor pathological changes in the livers. Exhaustive exercise at 26 C and restraint at 41.5 C were fatal for most rats. Histological and/or ultrastructural changes, which included centrilobular necrosis, vacuolization and diminution of hepatocellular microvilli, and loss of sinusoidal endothelium, were observed in livers from rats that were run to exhaustion at 26 C and from those rats restrained at 41.5 C. This work supports the validity of the rat model, since human heatstroke results in similar hepatic changes.
Authors:
W D Bowers; R W Hubbard; I Leav; R Daum; M Conlon; M P Hamlet; M Mager; P Brandt
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Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Archives of pathology & laboratory medicine     Volume:  102     ISSN:  0003-9985     ISO Abbreviation:  Arch. Pathol. Lab. Med.     Publication Date:  1978 Mar 
Date Detail:
Created Date:  1978-05-08     Completed Date:  1978-05-08     Revised Date:  2003-11-14    
Medline Journal Info:
Nlm Unique ID:  7607091     Medline TA:  Arch Pathol Lab Med     Country:  UNITED STATES    
Other Details:
Languages:  eng     Pagination:  154-7     Citation Subset:  AIM; IM    
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MeSH Terms
Descriptor/Qualifier:
Animals
Heat Exhaustion / complications,  pathology*
Liver / pathology*
Liver Diseases / etiology,  pathology
Male
Necrosis
Rats

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