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Possible Role of MicroRNA in Equine Insulin Resistance: A Pilot Study
- Source :
- Journal of Equine Veterinary Science. 63:74-79
- Publication Year :
- 2018
- Publisher :
- Elsevier BV, 2018.
-
Abstract
- MicroRNAs (miRNAs) are a class of small endogenous single-stranded noncoding RNA molecules that have important roles in several biological processes. Research in human and laboratory animals has shown that miRNAs can regulate genes associated with type 2 diabetes mellitus and metabolic syndrome, and that the levels of specific miRNAs circulating in the bloodstream can serve as potential biomarkers for the diagnosis and prognosis of these diseases. We hypothesized that insulin-resistant (IR) horses would have a different circulating miRNA profile than those that are healthy. Fifteen nonpregnant mares housed at the Virginia Tech Middelburg Agricultural Research and Extension Center were evaluated for insulin sensitivity, with the frequent sampling intravenous glucose tolerance test. Selected mares, representing the most insulin-sensitive (IS, n = 3) and IR (n = 3) states, and paired for age, weight, and body condition, underwent miRNA profiling. Serum samples were collected, miRNA extracted, and microarray analysis performed to investigate the presence and relative amount of 340 equine miRNAs. Confirmation by quantitative real-time polymerase chain reaction revealed that miRNA was present in the serum of all animals. Results demonstrated different miRNA profiles between groups: Six miRNAs were expressed only in IS mares, five miRNAs were found to have lower quantity in IR mares relative to the IS ones, and three miRNAs were higher quantity in IR mares relative to the IS ones. The novel results of this preliminary study suggest potential new tools that could be developed for the diagnosis and treatment of metabolic syndrome in horses.
- Subjects :
- 0301 basic medicine
medicine.medical_specialty
040301 veterinary sciences
Equine
Microarray analysis techniques
Physiology
04 agricultural and veterinary sciences
Biology
medicine.disease
Non-coding RNA
law.invention
0403 veterinary science
03 medical and health sciences
030104 developmental biology
Endocrinology
Insulin resistance
Equine metabolic syndrome
law
Internal medicine
microRNA
medicine
Metabolic syndrome
Gene
Polymerase chain reaction
Subjects
Details
- ISSN :
- 07370806
- Volume :
- 63
- Database :
- OpenAIRE
- Journal :
- Journal of Equine Veterinary Science
- Accession number :
- edsair.doi...........72cb0da90302fb493aadc6c4c283113d
- Full Text :
- https://doi.org/10.1016/j.jevs.2017.10.024