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PPID

8 seasonal testing considerations
Seasonal Considerations When Testing Horses for PPID
September 7, 2026
⎯ Alexandra Beckstett
Basal ACTH and TRH stimulation test results can vary seasonally, which can lead to false positive results when testing horses for PPID.
7 PPID early signs
What Are the Early Signs of PPID in Horses?
August 28, 2026
⎯ Alexandra Beckstett
Owners of aging horses should familiarize themselves with the early signs of PPID, which can develop gradually and resemble other conditions.
Screenshot 2026-07-27 at 10.39
Understanding PPID, EMS, and Insulin Dysregulation in Horses
July 27, 2026
⎯ Alexandra Beckstett
Dr. Edd Knowles describes the key differences between these three endocrine disorders that can develop in older horses.
Veterinarian takes blood from a Friesian horse from the neck vein with vacutainer blood tubes
The Importance of Routine Blood Testing for Senior Horses
July 8, 2026
⎯ Beatrice Lehmann, DVM
A senior horse blood profile can help owners and veterinarians detect and manage endocrine disorders, inflammation, metabolic disease, and organ dysfunction early.
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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