Laminitis research: Feeding a high starch diet can influence PPID (Equine Cushings Disease) test results

Summary: New research, conducted in collaboration with the British horse feed company SPILLERS®, has shown that the equine diet, and more specifically, a starch rich food, can influence adrenocorticotropin hormone ,or ‘ACTH’, test results. This could potentially lead to an incorrect disease diagnosis in some horses when ACTH is used to test for Pituitary Pars Intermedia Dysfunction (PPID).

Key point: The threshold values for diagnosis of the disease currently vary dependent on the season, but these new findings suggest that diet should also be considered. 

Hoof Blog note: Laminitis in older horses is commonly blamed on PPID, but a definitive diagnosis by hormonal test results is required to determine if an underlying endocrine condition is the cause of laminitis. Some horses with PPID may lose weight, which might lead owners to increase feed or change to a higher-starch diet to counter weight loss. Horse owners and veterinarians should communicate about a horse's feed intake before testing; future research may reveal more specific guidelines about how feed type influences test results.

Laminitis Researcher Ray Geor to Leave US for Post in His Native New Zealand

Edited from a press release 

Beginning in 2015, Massey University's College of Sciences in New Zealand will be led by internationally-recognized veterinary and agricultural science specialist Professor Raymond Geor, BVSc, MVSc, PhD, DACVIM.

Professor Geor is currently Professor and Chairperson of Large Animal Clinical Sciences at Michigan State University College of Veterinary Medicine in the United States. In recent years, his research and publications have been invaluable to the understanding of obesity and Equine Metabolic Syndrome in horses, and how it may relate to laminitis, as well as more than 180 other research papers in equine nutrition and physiology.

The university Vice-Chancellor Steve Maharey announced today that Professor Geor will replace the current Pro Vice-Chancellor of the college, Professor Robert Anderson, who is retiring later this year.

Professor Geor is a Massey Bachelor of Veterinary Science graduate (1983) who has worked in tertiary education in the United States and Canada for most of the past 30 years. He was raised in Havelock North and attended St John's College in Hastings, both in New Zealand.

He has a Master of Veterinary Science from the University of Saskatchewan, a PhD in Physiology from The Ohio State University and breadth of institutional experience in veterinary medicine and agriculture as a leader/administrator, professor, clinical veterinarian, teacher and researcher.

That experience includes his current role at Michigan State, as well as posts at Virginia Tech University, Kentucky Equine Research Incorporated, University of Minnesota, the University of Guelph and the University of Saskatchewan in Canada, as well as a practicing veterinarian in New Zealand.

Geor has been a frequent presenter in the research program at the International Equine Conference on Laminitis and Diseases of the Foot in West Palm Beach, Florida.

He will join the university in March next year.

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