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PPID

A very old Arabian horse in snowy pasture on a cold winter morning, with sunrise lighting up his breath in the air
Medical Events and Life Expectancy in PPID Horses
April 24, 2026
⎯ Haylie Pfeffer
Researchers review what a PPID diagnosis could mean for older horses’ long-term health.
Shetlandhengst
Factors That Can Affect a Horse’s ACTH Test Results
March 25, 2026
⎯ Alexandra Beckstett
Measuring ACTH is the most common test for diagnosing and monitoring horses with pituitary pars intermedia dysfunction (PPID).
annual wellness exam vet horse owner
My Senior Horse Podcast: Annual Wellness Exam
November 17, 2025
⎯ Kimberly S. Brown
In this episide, Dr. Toby Pinn-Woodcock helps horse owners understand what to expect at their senior horse's annual wellness exam.
Horse closeup portrait retired aged to paddock pastures
Understanding the Aging Equine Immune System 
August 16, 2025
⎯ Alexandra Beckstett
Horses experience less profound immune system changes than humans as they get older. However, researchers still have much to learn about equine aging.
Dr. Rachel Lemcke presents on PPID and insulin dysregulation ID
Horse Breeds, PPID, and Insulin Dysregulation
January 17, 2025
⎯ Kimberly S. Brown
Some horse breeds are prone to endocrine diseases, specifically pituitary pars intermedia dysfunction (PPID) and insulin dysregulation (ID).
Nicolas C. Galinelli, DVM, PhD candidate
Nicolas C. Galinelli, DVM, PhD Candidate 
January 12, 2024
⎯ My Senior Horse Editors
Nicolas C. Galinelli is a DVM and PhD candidate whose main professional interests are equine endocrinology, medicine, and nutrition.
Simon Bailey, BVMS, PhD, FHEA, DipECVPT, FRCVS
Simon Bailey, BVMS, PhD, FHEA, DECVPT, FRCVS
January 12, 2024
⎯ My Senior Horse Editors
Simon Bailey, BVMS, PhD, FHEA, DECVPT, FRCVS, is a professor and deputy head of school at the Melbourne Veterinary School.
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