Document Detail


Effects of glucagon and insulin on plasma glucose, triglyceride, and triglyceride-rich lipoprotein concentrations in laying hens fed diets containing different types of fats.
MedLine Citation:
PMID:  12455597     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
The influence of dietary fat supplementations differing in the ratio of n-6 to n-3 polyunsaturated fatty acids (PUFA) on the effects of glucagon and insulin on plasma glucose, triglyceride (TG), and TG-rich lipoprotein concentrations was investigated in laying hens. Birds were fed either a low-fat control diet (LF) or diets supplemented with 4% pumpkin seed oil (PO; rich in n-6 PUFA) or 4% cod liver oil (CO; rich in n-3 PUFA). After 4 wk feeding of the experimental diets, hens were implanted with wing vein catheters and injected with porcine glucagon (20 microg/kg BW) and porcine insulin (0.5 IU/kg BW), 2 to 5 h after oviposition. Plasma glucose, TG, and TG-rich lipoprotein concentrations were determined from 10 min pre-injection to 60 min post-injection. PO diet resulted in a prolonged plasma glucose response to glucagon administration and altered hypoglycemic response to insulin. However, CO diet did not influence plasma glucose response to either glucagon or insulin administration compared to LF diet. The effects of glucagon and insulin on plasma TG and TG-rich lipoproteins were similar for all diets regardless of the amount or type of fat. The results suggest that feeding dietary fats with high n-6 to n-3 PUFA ratio alters the glucagon and insulin sensitivity of plasma glucose in laying hens. Fats rich in n-3 PUFA seem to have no influence on the plasma glucose response to glucagon and insulin.
Authors:
L Pál; R Grossmann; K Dublecz; F Husvéth; L Wagner; A Bartos; G Kovács
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't    
Journal Detail:
Title:  Poultry science     Volume:  81     ISSN:  0032-5791     ISO Abbreviation:  Poult. Sci.     Publication Date:  2002 Nov 
Date Detail:
Created Date:  2002-11-28     Completed Date:  2003-03-20     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  0401150     Medline TA:  Poult Sci     Country:  United States    
Other Details:
Languages:  eng     Pagination:  1694-702     Citation Subset:  IM    
Affiliation:
Department of Functional Genomics and Bioregulation, Federal Agricultural Research Center (FAL), Institute for Animal Science and Animal Behaviour, D-29223 Celle, Germany. pal-l@georgikon.hu
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MeSH Terms
Descriptor/Qualifier:
Animals
Blood Glucose / analysis*,  drug effects
Chickens / blood*
Dietary Fats, Unsaturated / administration & dosage,  pharmacology*
Fatty Acids, Omega-3 / administration & dosage,  pharmacology
Fatty Acids, Omega-6
Fatty Acids, Unsaturated / administration & dosage,  pharmacology
Female
Glucagon / pharmacology*
Insulin / pharmacology*
Lipoproteins / blood*,  chemistry
Oviposition
Random Allocation
Triglycerides / blood*
Chemical
Reg. No./Substance:
0/Blood Glucose; 0/Dietary Fats, Unsaturated; 0/Fatty Acids, Omega-3; 0/Fatty Acids, Omega-6; 0/Fatty Acids, Unsaturated; 0/Lipoproteins; 0/Triglycerides; 11061-68-0/Insulin; 9007-92-5/Glucagon

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


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