Document Detail


Energy substrate utilization in the common brushtailed possum (Trichosurus vulpecula) using intravenous tolerance tests.
MedLine Citation:
PMID:  20977945     Owner:  NLM     Status:  In-Process    
Abstract/OtherAbstract:
The aim of this study was to investigate the energy substrate requirements of the common brushtailed possum (Trichosurus vulpecula) using intravenous tolerance tests for glucose, alanine, and propionate in five adult male and female animals under standardized conditions. Significant differences (p<0.01) were observed for fasting blood glucose values between males (6.3±0.16 mmol L(-1)) and females (4.8±0.13 mmol L(-1)), and males had a significantly (p<0.001) increased response to glucose. All animals returned to fasting glucose levels within 120 min after the glucose challenge. No significant change in blood glucose levels was observed for either the alanine or propionate tolerance tests (p>0.05). However, following propionate administration, there was a highly significant (p<0.001) decrease in blood lactate concentrations over 120 min. There was no evidence of ketone formation using β-hydroxybutyrate as a biomarker during any of the tests, indicating that there was no significant switch to lipolysis. In conclusion, the study provides new information on energy substrate utilization in this species and has identified that a gluconeogenic response normally identified in other species is not apparent in the common brushtailed possum.
Authors:
M Legge; L M Jones; B J McLeod
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Publication Detail:
Type:  Journal Article     Date:  2010-10-23
Journal Detail:
Title:  Comparative biochemistry and physiology. Part B, Biochemistry & molecular biology     Volume:  158     ISSN:  1879-1107     ISO Abbreviation:  Comp. Biochem. Physiol. B, Biochem. Mol. Biol.     Publication Date:  2011 Feb 
Date Detail:
Created Date:  2010-12-20     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  9516061     Medline TA:  Comp Biochem Physiol B Biochem Mol Biol     Country:  England    
Other Details:
Languages:  eng     Pagination:  132-5     Citation Subset:  IM    
Copyright Information:
Copyright © 2010 Elsevier Inc. All rights reserved.
Affiliation:
Department of Biochemistry, University of Otago, PO Box 56, Dunedin 9054, New Zealand. mike.legge@otago.ac.nz
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