Association of the glycoxidative stress marker pentosidine with equine laminitis.

The research article examines the possibility of a connection between glycoxidative stress, indicated through a compound called pentosidine, and a horse disease known as equine laminitis, especially in ponies that exhibit symptoms of equine metabolic syndrome (EMS). Glycoxidative stress is seen as a potential triggering factor for inflammation, which can result in ailments such as diabetes and cardiovascular disease in humans.

Introduction

• The study references how ponies suffering from recurrent laminitis episodes, a condition occurring when horses graze at pasture, exhibit traits similar to those related to the human metabolic syndrome.
• In humans, obesity-related diseases linked with metabolic syndrome, such as diabetes and cardiovascular disease, have been attributed to increased production of advanced glycoxidation end-products (AGEs), which are also seen as potential pro-inflammatory factors.

Objectives

• The study’s main objective was to investigate AGEs in laminitic ponies by comparing the AGE pentosidine’s plasma concentrations in ponies that show clinical features of EMS and had recent instances of laminitis or had signs of laminitis during sampling time.
• These were compared with those in ponies with no prior history of clinical laminitis.

Methodology

• Various factors including age, body condition score (BCS), and bodyweight of the ponies were recorded and blood samples were collected for determining plasma concentrations of pentosidine, glucose, insulin, triglycerides (TG), non-esterified fatty acids (NEFA), and cortisol.
• Insulin sensitivity was gauged using the reciprocal of the square root of insulin (RISQI) and the insulin:glucose ratio.

Outcomes

• The research revealed that plasma pentosidine concentrations were two times higher in ponies experiencing a bout of laminitis during sample collection compared to those without any prior laminitis history.
• Significant correlations were also noted between pentosidine and insulin, RISQI, TG, and age.

Conclusion

• These initial findings align with the hypothesis that glycoxidation in laminitis is related to EMS in ponies.