Document Detail


Comparative analysis of gene expression profiles in ruminal tissue from Holstein dairy cows fed high or low concentrate diets.
MedLine Citation:
PMID:  20732839     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
Cattle are often fed high concentrate (HC) diets to increase productivity, although HC diets cause changes in ruminal environment such as pH reduction. Despite those well-documented changes in cattle fed HC diets, there is currently a paucity of data describing the molecular events regulating the ruminal environment. Our objective was to gain an understanding of which genes are differentially expressed in ruminal tissue from Holstein cows fed a HC comparing to low concentrate (LC) diet using microarray analysis using a bovine 24 k microarray. A total of 5,200 differentially expressed genes (DEG) were detected for cows fed HC relative to LC. The DEG were firstly annotated with gene ontology (GO) and Kyoto encyclopedia of Genes and Genomes (KEGG), indicating that the DEG were associated with catalytic activity and MAPK pathway, respectively. Further characterization using GeneCodis identified patterns of interrelated annotations for the DEG to elucidate the relationships among annotation groups revealed that a cAMP-dependent protein kinase A catalytic subunit beta (PRKACB), may be associated with ruminal tissue maintenance. The results contributed to understanding of the regulatory mechanisms at the mRNA level for Holstein cows fed at different concentrate ratio diets.
Authors:
Masaaki Taniguchi; Gregory B Penner; Karen A Beauchemin; Masahito Oba; Le Luo Guan
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Publication Detail:
Type:  Comparative Study; Journal Article; Research Support, Non-U.S. Gov't     Date:  2010-08-02
Journal Detail:
Title:  Comparative biochemistry and physiology. Part D, Genomics & proteomics     Volume:  5     ISSN:  1878-0407     ISO Abbreviation:  Comp. Biochem. Physiol. Part D Genomics Proteomics     Publication Date:  2010 Dec 
Date Detail:
Created Date:  2010-12-06     Completed Date:  2011-03-29     Revised Date:  2011-04-19    
Medline Journal Info:
Nlm Unique ID:  101270611     Medline TA:  Comp Biochem Physiol Part D Genomics Proteomics     Country:  Netherlands    
Other Details:
Languages:  eng     Pagination:  274-9     Citation Subset:  IM    
Copyright Information:
Copyright © 2010 Elsevier Inc. All rights reserved.
Affiliation:
Department of Agricultural, Food and Nutritional Science, University of Alberta, Edmonton, Alberta, Canada T6G 2P5.
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MeSH Terms
Descriptor/Qualifier:
Animals
Cattle / metabolism*
Cyclic AMP-Dependent Protein Kinases / analysis,  metabolism
Diet / veterinary*
Female
Gene Expression Profiling*
Microarray Analysis / veterinary
Rumen / chemistry,  metabolism*
Chemical
Reg. No./Substance:
EC 2.7.11.11/Cyclic AMP-Dependent Protein Kinases

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


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