Document Detail


Hypometabolism in reptiles: behavioural and physiological mechanisms that reduce aerobic demands.
MedLine Citation:
PMID:  15288598     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
During exposure to hypoxia all vertebrates utilize a suite of cardiovascular and ventilatory responses that, in combination, strive to maintain adequate delivery of oxygen to the metabolizing tissues. In addition to maintaining oxygen delivery through cardio-respiratory responses, oxygen demands in the tissues can also be reduced. Reptiles use this alternative strategy during periods of moderate to severe hypoxia by behavioural reductions in preferred body temperature and by active down-regulation of aerobic metabolism. Below we review these two different strategies and discuss their possible mechanisms and physiological significance.
Authors:
James W Hicks; Tobias Wang
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't; Research Support, U.S. Gov't, Non-P.H.S.; Review    
Journal Detail:
Title:  Respiratory physiology & neurobiology     Volume:  141     ISSN:  1569-9048     ISO Abbreviation:  Respir Physiol Neurobiol     Publication Date:  2004 Aug 
Date Detail:
Created Date:  2004-08-03     Completed Date:  2004-10-25     Revised Date:  2008-11-21    
Medline Journal Info:
Nlm Unique ID:  101140022     Medline TA:  Respir Physiol Neurobiol     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  261-71     Citation Subset:  IM    
Affiliation:
Department of Ecology and Evolutionary Biology, University of California, Irvine, CA 92697, USA. jhicks@uci.edu
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MeSH Terms
Descriptor/Qualifier:
Adaptation, Physiological / physiology*
Animals
Anoxia / physiopathology*
Behavior, Animal / physiology*
Body Temperature / physiology
Cardiovascular Physiological Phenomena
Models, Cardiovascular
Oxygen / metabolism
Oxygen Consumption
Reptiles / physiology*
Respiratory Mechanics / physiology*
Vagus Nerve / physiology
Chemical
Reg. No./Substance:
7782-44-7/Oxygen

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


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