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Pulmonary intravascular macrophages and endotoxin-induced pulmonary pathophysiology in horses.

Abstract: Endotoxemia causes significant mortality and morbidity in horses. The mechanisms underlying this complex pathophysiology remain unclear. Therefore, effective tools to treat endotoxemia in horses are lacking. Furthermore, the multifactorial and multiorgan pathophysiology of equine endotoxemia has not been fully addressed, especially the lung injury associated with endotoxemia. Within the context of the broader picture of endotoxemia and lung injury, we offer a perspective on the roles of pulmonary intravascular macrophages in endotoxin-induced lung inflammation in horses. L’endotoxémie est une cause de mortalité et de morbidité important chez les chevaux. Le mécanisme qui sous-tend cette pathophysiologie complexe demeure nébuleux. Ainsi, des outils efficaces pour traiter une endotoxémie chez des chevaux sont manquants. De plus, la pathophysiologie multifactorielle et multi-organes de l’endotoxémie équine n’a pas été complètement étudiée, plus spécifiquement les lésions pulmonaires associées avec l’endotoxémie. Dans le contexte plus global de l’endotoxémie et des lésions pulmonaires, nous offrons une perspective sur les rôles des macrophages pulmonaires intra-vasculaires lors d’inflammation pulmonaire chez les chevaux. (Traduit par Docteur Serge Messier)
Publication Date: 2010-04-02 PubMed ID: 20357958PubMed Central: PMC2801311
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  • Journal Article
  • Research Support
  • Non-U.S. Gov't

Summary

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The research focuses on assessing the role of pulmonary intravascular macrophages in lung inflammation caused by endotoxemia, a condition causing high mortality and morbidity in horses, to improve treatment options.

Understanding Endotoxemia in Horses

  • The condition known as endotoxemia causes significant health issues in horses with severe mortality and morbidity rates.
  • The pathophysiology of endotoxemia in equines is complex and not fully understood, which creates difficulties in finding effective treatments for the condition.
  • One particularly unexplored aspect of equine endotoxemia is its multifactorial and multi-organ pathophysiology. This includes lung injuries associated with the condition, which hasn’t been thoroughly investigated until now.

Role of Pulmonary Intravascular Macrophages

  • This study aims to shed light on the role of pulmonary intravascular macrophages (a type of immune cell located inside the blood vessels in the lungs) in endotoxemia-induced lung inflammation in horses.
  • Looking closer at how these specialized immune cells respond to endotoxin-induced inflammation could provide insights into the mechanisms that drive endotoxemia and subsequently, lung injury in horses.

Potential Applications

  • Understanding the roles and functions of these crucial immune cells could help inform more effective treatments for endotoxemia in horses.
  • This research could also potentially contribute to the broader understanding of endotoxin-induced conditions and their impact on different body organs, providing valuable insights for veterinary medicine and health.

Cite This Article

APA
Aharonson-Raz K, Singh B. (2010). Pulmonary intravascular macrophages and endotoxin-induced pulmonary pathophysiology in horses. Can J Vet Res, 74(1), 45-49.

Publication

ISSN: 1928-9022
NlmUniqueID: 8607793
Country: Canada
Language: English
Volume: 74
Issue: 1
Pages: 45-49

Researcher Affiliations

Aharonson-Raz, Karin
  • Department of Veterinary Biomedical Sciences, Western College of Veterinary Medicine, University of Saskatchewan, Saskatoon, Saskatchewan.
Singh, Baljit

    MeSH Terms

    • Animals
    • Endotoxemia / physiopathology
    • Endotoxemia / veterinary
    • Endotoxins / pharmacology
    • Horse Diseases / physiopathology
    • Horses
    • Inflammation / physiopathology
    • Inflammation / veterinary
    • Lung / blood supply
    • Lung / drug effects
    • Lung / physiopathology
    • Macrophages, Alveolar / drug effects

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    Citations

    This article has been cited 6 times.
    1. Kang H, Lee GKC, Bienzle D, Arroyo LG, Sears W, Lillie BN, Beeler-Marfisi J. Equine alveolar macrophages and monocyte-derived macrophages respond differently to an inflammatory stimulus.. PLoS One 2023;18(3):e0282738.
      doi: 10.1371/journal.pone.0282738pubmed: 36920969google scholar: lookup
    2. Townsend M, Fowler B, Aulakh GK, Singh B. Expression of pentraxin 3 in equine lungs and neutrophils.. Can J Vet Res 2023 Jan;87(1):9-16.
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    3. Bocking T, Johnson L, Singh A, Desai A, Aulakh GK, Singh B. Research article expression of surfactant protein-A and D, and CD9 in lungs of 1 and 30 day old foals.. BMC Vet Res 2021 Jul 5;17(1):236.
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    5. Parkinson NJ, Buechner-Maxwell VA, Witonsky SG, Pleasant RS, Werre SR, Ahmed SA. Characterization of basal and lipopolysaccharide-induced microRNA expression in equine peripheral blood mononuclear cells using Next-Generation Sequencing.. PLoS One 2017;12(5):e0177664.
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    6. Schneberger D, Lewis D, Caldwell S, Singh B. Expression of toll-like receptor 9 in lungs of pigs, dogs and cattle.. Int J Exp Pathol 2011 Feb;92(1):1-7.