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Relationship between plasma insulin and triglyceride concentrations in hypertriglyceridaemic donkeys
A J Forhead1, J French, P Ikin
1Department of Veterinary Clinical Science and Animal Husbandry, University of Liverpool, Leahurst, Neston, South Wirral.
Research in Veterinary Science
|May 1, 1994
Summary
Hyperinsulinaemia, a hallmark of insulin resistance, was positively correlated with triglyceride levels in donkeys with hyperlipaemia. However, basal insulin measurements may not accurately reflect underlying insulin sensitivity in these animals.
Area of Science:
- Equine metabolic disorders
- Veterinary endocrinology
- Animal physiology
Background:
- Hyperinsulinaemia is frequently observed in insulin resistance.
- Reduced insulin sensitivity is implicated in equine hyperlipaemia.
- Equine hyperlipaemia presents a significant health concern in donkeys.
Purpose of the Study:
- To investigate the relationship between plasma insulin and triglyceride concentrations in donkeys with naturally occurring hyperlipaemia.
- To explore potential correlations between insulin levels, body condition, and clinical factors in affected donkeys.
- To assess the utility of basal plasma insulin concentrations for evaluating insulin sensitivity in equine hyperlipaemia.
Main Methods:
- Plasma insulin and triglyceride concentrations were measured in 31 donkeys with hyperlipaemia.
- Correlation analysis was performed to assess the relationship between insulin and triglyceride levels.
- Insulin concentrations were compared across different clinical classifications and between normo- and hypertriglyceridaemic groups.
Main Results:
- A significant positive correlation (r = 0.545, P = 0.0015) was found between plasma insulin and triglyceride concentrations.
- Higher insulin values were observed in overweight donkeys.
- Inter-animal variation limited the ability to detect differences in insulin levels based on clinical condition or experimental groups.
Conclusions:
- Basal plasma insulin concentrations may not reliably indicate underlying insulin sensitivity in donkeys with hyperlipaemia.
- Hyperinsulinaemia might only become apparent in donkeys with advanced insulin resistance.
- Further research is needed to accurately assess insulin sensitivity in equine metabolic conditions.