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Methylated tirilazad may mitigate oligofructose-induced laminitis in horses.
Abstract: Laminitis is a serious health condition that can cause severe pain and lameness in horses. Due to lack of understanding of laminitis, treatments often fail to achieve the desired results. In recent years, we have begun to recognize that laminitis may involve a complex interaction between local and systemic inflammation. Dysbiosis of the gut microbiota has been linked in the development of systemic inflammation, and our previous findings suggest that the development of laminitis is closely linked to the production of harmful metabolites of the gut microbiota. In addition, it was found that localized lesions in the hoof, especially lamellar injuries, are the most direct cause of laminitis. Matrix metalloproteinases have been found to be strongly associated with the development of laminitis. Recent discovery has found that methylated tirilazad has a role in repairing laminar tissue in vitro. However, its efficacy in horses never has been studied. Therefore, we aimed to investigate the efficacy of methylated tirilazad (product name: PTP-102) in the prevention/treatment of oligofructose-induced laminitis. The results showed that oligofructose successfully induced laminitis in horses, resulting in detreated clinical signs. Blood indices (including inflammation-related indices and other related indices) were significantly increased. Observations of dissection and staining showed significant bleeding, swelling, and damage to hoof tissue. Analysis of the gut microbiota showed a significant decrease in abundance and diversity, and a significant increase in the relative abundance of specific bacteria. Following methylated tirilazad intervention, there were a significant improvement in clinical signs, blood markers and lamellar tissue damage. Additionally, methylated tirilazad positively influenced the gut microbiota structure by reducing the relative abundance of genera closely associated with the development of equine laminitis. This suggests that some of the therapeutic mechanism of methylated tirilazad may be linked to its effects on the gut microbiota. Notably, methylated tirilazad had better effect in the treatment group than the prophylactic group, indicating the post-diagnosis utility of methylated tirilazad for laminitis management.
Copyright © 2024 Tuniyazi, Tang, Hu and Zhang.
Publication Date: 2024-09-25 PubMed ID: 39386364PubMed Central: PMC11461245DOI: 10.3389/fmicb.2024.1391892Google Scholar: Lookup The Equine Research Bank provides access to a large database of publicly available scientific literature. Inclusion in the Research Bank does not imply endorsement of study methods or findings by Mad Barn.
- Journal Article
Summary
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This research investigates the efficacy of methylated tirilazad (PTP-102) in preventing and treating oligofructose-induced laminitis in horses, a health condition linked to gut microbiota imbalance and systemic inflammation. The findings suggest that methylated tirilazad has significant effects on improving clinical signs, blood markers, and lamellar tissue damage while also positively influencing the gut microbiota structure.
Understanding Laminitis
- Laminitis is a severe health condition in horses characterized by pain and lameness.
- The condition may result from complex interactions between localized and systemic inflammation.
- Research implicates disruptions in gut microbiota (dysbiosis) and the production of harmful microbial metabolites in the development of laminitis.
- Localized lesions in the hoof, particularly lamellar injuries, are often the immediate cause of laminitis.
- There is a strong association between the disease and matrix metalloproteinases, protein structures that degrade the extracellular matrix components.
Role of Methylated Tirilazad (PTP-102)
- Methylated tirilazad is a modified version of tirilazad, an agent used previously in neuroprotective therapies.
- Recent research highlights its potential role in repairing laminar tissue; however, this is the first study assessing its efficacy in horses.
- The research team tested the compound’s effectiveness in preventing and treating oligofructose-induced laminitis in horses.
Research Findings
- Oligofructose successfully induced laminitis in the horses involved in the study, showing noticeable clinical signs of the disease, such as lameness and pain.
- Specific blood indices like inflammation markers were significantly increased, and dissection and staining showed significant hoof tissue damage.
- The abundance and diversity of gut microbiota decreased, and there was a substantial increase in the relative abundance of certain pathogenic bacteria.
- On administering methylated tirilazad, the researchers noticed significant improvements in clinical signs, blood markers, and lamellar tissue damage. Moreover, the compound appeared to positively influence the gut microbiota structure, reducing harmful bacterial abundance.
- These findings suggest that the therapeutic mechanism may, in part, involve the compound’s effects on the gut microbiota.
- It was found to be more effective as a treatment after laminitis diagnosis rather than as a preventive measure, indicating its potential utility for managing laminitis effectively.
Cite This Article
APA
Tuniyazi M, Tang R, Hu X, Zhang N.
(2024).
Methylated tirilazad may mitigate oligofructose-induced laminitis in horses.
Front Microbiol, 15, 1391892.
https://doi.org/10.3389/fmicb.2024.1391892 Publication
Researcher Affiliations
- College of Veterinary Medicine, Jilin University, Changchun, China.
- College of Veterinary Medicine, Jilin University, Changchun, China.
- College of Veterinary Medicine, Jilin University, Changchun, China.
- College of Veterinary Medicine, Jilin University, Changchun, China.
Conflict of Interest Statement
The authors declare that the research was conducted in the absence of any commercial or financial relationships that could be construed as a potential conflict of interest.
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