Preliminary analysis of the FAM174A gene suggests it lacks a strong association with equine metabolic syndrome in ponies.
Abstract: Equine metabolic syndrome (EMS) describes a group of risk factors, including obesity and insulin dysregulation (hyperinsulinemia and/or insulin resistance), that can lead to the development of the debilitating hoof disease laminitis. Although the underlying mechanisms of EMS are not fully understood, a genetic component has been reported, and an 11 guanine polymorphism located at the FAM174A gene has been identified as a risk locus for the syndrome in Arabian horses. To examine associations between the FAM174A risk allele and the clinical signs of EMS, the allele was examined in an Australian cohort of ponies (n = 20) with known metabolic status. The 11 guanine polymorphism was identified in only 3 of 13 ponies with EMS, and no significant association could be made between the risk loci and morphometric measurements associated with obesity (BCS [P = 0.21], cresty neck score [P = 0.58], basal triglyceride concentration [P = 0.85], and adiponectin concentration [P = 0.48]), or insulin dysregulation (insulin dysregulation status [P = 0.35] and serum insulin concentration during an oral glucose test [P = 0.44]). These results suggest that the FAM174A 11 guanine homopolymer allele is unlikely to be a singular key gene polymorphism associated with EMS in ponies. However, due to the small number of ponies identified with the polymorphism, further study of the FAM174A risk allele in a larger cohort of horses and ponies of uniform breed would be useful.
Copyright © 2020 Elsevier Inc. All rights reserved.
Publication Date: 2020-01-28 PubMed ID: 32169753DOI: 10.1016/j.domaniend.2020.106439Google Scholar: Lookup
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- Journal Article
- Research Support
- Non-U.S. Gov't
Summary
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The research explores the FAM174A gene’s potential correlation with equine metabolic syndrome (EMS) in ponies, finding insufficient evidence to suggest a strong association between the two.
Equine Metabolic Syndrome (EMS)
- EMS is a condition among horses and ponies characterized by risk factors such as obesity and insulin dysregulation. These symptoms may result in laminitis, a severely painful and debilitating hoof disease.
- The full underlying mechanisms are not entirely understood; however, previously identified genetic components may have potential associations with EMS.
FAM174A Gene as an EMS Risk Factor
- In Arabian horses, an 11 guanine polymorphism located in the FAM174A gene was flagged as a potential risk factor for EMS.
- The researchers, therefore, chose to examine potential correlations between the FAM174A risk allele and clinical signs of EMS in a different breed, Australian ponies.
Research Findings
- The research sampled 20 Australian ponies and found the 11 guanine polymorphism in only three of the 13 ponies diagnosed with EMS.
- No significant association emerged between the risk loci and various measures linked to obesity or insulin dysregulation—attributes commonly identified with EMS.
- These findings subsequently suggest that the FAM174A 11 guanine homopolymer allele, while potentially associated with EMS in Arabian horses, is unlikely to have a significant correlation with EMS in ponies.
Limitations and Further Research
- This study’s primary limitation is its small size, which affects the robustness and generalizability of the findings.
- As only a small number of ponies in the study displayed the polymorphism, it is recommended that further research be conducted on a larger and more uniform sample, potentially across different breeds.
Cite This Article
APA
Cash CM, Fitzgerald DM, Spence RJ, de Laat MA.
(2020).
Preliminary analysis of the FAM174A gene suggests it lacks a strong association with equine metabolic syndrome in ponies.
Domest Anim Endocrinol, 72, 106439.
https://doi.org/10.1016/j.domaniend.2020.106439 Publication
Researcher Affiliations
- School of Biology and Environmental Sciences, Queensland University of Technology, Brisbane, Queensland, Australia.
- School of Biology and Environmental Sciences, Queensland University of Technology, Brisbane, Queensland, Australia.
- School of Biology and Environmental Sciences, Queensland University of Technology, Brisbane, Queensland, Australia.
- School of Biology and Environmental Sciences, Queensland University of Technology, Brisbane, Queensland, Australia. Electronic address: melody.delaat@qut.edu.au.
MeSH Terms
- Alleles
- Animals
- Genetic Predisposition to Disease
- Horse Diseases / genetics
- Horse Diseases / metabolism
- Horses
- Insulin / metabolism
- Insulin Resistance
- Metabolic Syndrome / veterinary
- Obesity / genetics
- Obesity / veterinary
- Polymorphism, Single Nucleotide
Citations
This article has been cited 3 times.- Stefaniuk-Szmukier M, Piórkowska K, Ropka-Molik K. Equine Metabolic Syndrome: A Complex Disease Influenced by Multifactorial Genetic Factors. Genes (Basel) 2023 Jul 27;14(8).
- Wallis N, Raffan E. The Genetic Basis of Obesity and Related Metabolic Diseases in Humans and Companion Animals. Genes (Basel) 2020 Nov 20;11(11).
- Daradics Z, Popescu M, Cătoi C, Mircean MV, Macri A, Mîrza O, Szakacs A, Daina S, Fetea F, Tripon MA, Lupșan AF, Bungărdean D, Călugăr A, Bora FD, Crecan CM. Forage Carbohydrate Profiles and Endocrine Morphometric Interactions in Traditionally Managed Horses from Romania. Life (Basel) 2025 Nov 6;15(11).
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