Document Detail


Water losses induced by heat exposure and the kinin system in the rat.
MedLine Citation:
PMID:  7691218     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Normal Wistar rats, normal and kininogen-deficient Brown Norway rats were kept at ambiant temperatures of 26 degrees C, 36 degrees C or 40 degrees C for 3 to 5 hours. Their colonic temperatures and body weights were measured. At 26 degrees C, the changes in these parameters were similar in the three strains. At 36 degrees C, body weight loss was increased more in normal rats than in kininogen-deficient rats. At 40 degrees C, body temperature increased more quickly and body weight loss was less enhanced in kininogen-deficient rats than in normal rats. The water content of muscles was less reduced in kininogen-deficient rats than in normal rats. HOE 140, a bradykinin antagonist, reduced the weight loss of Wistar rats kept at 36 degrees C and 40 degrees C. Atropine or removal of submaxillary glands increased colonic temperature and reduced the weight loss of Wistar rats at 36 degrees C and 40 degrees C. HOE 140 did not modify the reduction of weight loss induced by atropine but increased colonic temperatures and decreased thermal tolerance of atropinized Wistar rats at 36 degrees C. These results indicate that the kallikrein-kinin system plays a role in salivary secretion and in heat exchange during a heat exposure.
Authors:
J Damas
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Archives internationales de physiologie, de biochimie et de biophysique     Volume:  101     ISSN:  0778-3124     ISO Abbreviation:  Arch Int Physiol Biochim Biophys     Publication Date:    1993 May-Jun
Date Detail:
Created Date:  1993-11-15     Completed Date:  1993-11-15     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  9111069     Medline TA:  Arch Int Physiol Biochim Biophys     Country:  BELGIUM    
Other Details:
Languages:  eng     Pagination:  227-32     Citation Subset:  IM    
Affiliation:
Department of Human Physiology, University of Liège, Belgium.
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MeSH Terms
Descriptor/Qualifier:
Animals
Body Temperature Regulation / drug effects,  physiology
Body Water / metabolism*
Bradykinin / analogs & derivatives,  antagonists & inhibitors,  pharmacology
Hot Temperature*
Kallikreins / physiology*
Kininogens / deficiency*
Kinins / antagonists & inhibitors,  physiology*
Male
Rats
Rats, Inbred BN
Rats, Wistar
Reference Values
Salivary Glands / secretion*
Weight Loss / drug effects,  physiology
Chemical
Reg. No./Substance:
0/Kininogens; 0/Kinins; 130308-48-4/icatibant; 58-82-2/Bradykinin; EC 3.4.21.-/Kallikreins

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine


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