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Effects of the insulin sensitizing drug, pioglitazone, and lipopolysaccharide administration on markers of systemic inflammation and clinical parameters in horses.
MedLine Citation:
PMID:  22088672     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
Equine metabolic syndrome (EMS) is a condition of obese horses characterized by insulin resistance, systemic inflammation, and an increased risk of laminitis. The pathogenesis of EMS is thought, in part, to be due to inflammatory proteins produced by adipose tissue. Reducing inflammation may decrease the incidence of laminitis in horses with EMS. Pioglitazone hydrochloride, a thiazolidinedione, has efficacy to reduce obesity associated inflammation in humans. Eight normal, adult, horses were administered 1mg/kg pioglitazone for 14 days, and eight horses served as controls. Physical examination and hematologic variables, transcript abundance of pro-inflammatory cytokines in skeletal muscle and adipose tissue, and circulating concentrations of the acute phase protein, serum amyloid A and pro-inflammatory cytokine, TNF-α were assessed prior to, and following, an LPS infusion (35ng/kg). The objective was to determine if pre-treatment with pioglitazone would mitigate the development of inflammation and associated clinical markers of inflammation following LPS administration. Lipopolysaccharide administration induced systemic inflammation, as assessed by clinical and hematological aberrations, increased TNF-α, SAA and adipose tissue IL-6 mRNA abundance, however no mitigating effects of pioglitazone were detected. A longer treatment period or higher dose might be indicated for future experiments.
Authors:
Jamie G Wearn; Jessica K Suagee; Mark V Crisman; Benjamin A Corl; Matthew W Hulver; David R Hodgson; Ray J Geor; Laura J McCutcheon
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2011-10-25
Journal Detail:
Title:  Veterinary immunology and immunopathology     Volume:  -     ISSN:  1873-2534     ISO Abbreviation:  -     Publication Date:  2011 Oct 
Date Detail:
Created Date:  2011-11-17     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  8002006     Medline TA:  Vet Immunol Immunopathol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
Copyright © 2011 Elsevier B.V. All rights reserved.
Affiliation:
Department of Large Animal Clinical Sciences, Virginia-Maryland Regional College of Veterinary Medicine, Virginia Polytechnic Institute and State University, Blacksburg, VA 24060-0443, USA.
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