Horse Laminitis Prevention Research: Advances in Understanding a Complex Disease

Laminitis research is transforming prevention strategies through improved understanding of endocrine, nutritional, and inflammatory mechanisms, enabling more targeted interventions for at-risk horses.

Key Facts

Equine metabolic syndrome (EMS) and pituitary pars intermedia dysfunction (PPID/Cushings) are major predisposing conditions for laminitis
Insulin dysregulation — abnormal insulin response to carbohydrate intake — is now recognized as the primary endocrine mechanism in pasture laminitis
The digital veins and arteries supplying the hoof laminae undergo specific vascular changes during laminitis development
Measurement of resting insulin levels identifies at-risk horses before clinical laminitis develops
PPID can be managed with pergolide medication that reduces the risk of subsequent laminitis episodes
Research into endocannabinoids and inflammatory mediators is revealing new potential therapeutic targets

Welfare Considerations

Laminitis research advances translate directly to welfare improvements through better prevention of one of the most painful and welfare-compromising equine conditions. Understanding insulin dysregulation as a central mechanism has enabled more targeted prevention — dietary carbohydrate restriction for horses with documented insulin abnormalities, rather than generic low-sugar approaches for all horses. Identification of PPID as a major predisposing condition and the availability of effective medical treatment (pergolide) prevents laminitis in affected horses who would previously have had recurrent episodes without the underlying hormonal condition being treated. The trajectory of laminitis research is toward earlier identification of at-risk individuals, more targeted prevention, and more effective early treatment that prevents the progression to irreversible structural damage that causes chronic pain.

What You Can Do

Have middle-aged and older horses tested for PPID (equine Cushings) — treating it reduces laminitis risk
Request resting insulin measurement for horses that have had laminitis or are identified as metabolically at-risk
Work with your veterinarian to develop targeted dietary management based on documented metabolic status
Follow research advances in equine metabolic disease through organizations like the ECEIM and ECVIM
Support equine research foundations funding laminitis mechanism and treatment research
Implement early intervention at first signs of insulin dysregulation rather than waiting for clinical laminitis