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Posted by mlm
on 11/2/2009, 12:34 pm, in reply to "it's different in horses"
207.126.248.6
Horses DO have increased urination and drinking as a result of higher than normal blood glucose levels. Both of my old Cushings guys did. I'm pretty sure my Morgan was insulin resistant all of his life as he was an easy keeper and drank and peed more than any horse in the barn (there have been studies showing Morgans as having a higher than normal resting insulin, just like a number of ponies). Pergolide and a low carb diet dramatically normalized the drinking and peeing in my Arab.
As a thought: I recall Dr Kellon saying that the glucose doesn't necessarily spill into the urine as quickly, so blood tests are typically done rather than urine tests. On the Cushings board, folks tend to do a glucose/insulin (or is it insulin/glucose?) ratio to assist in diagnosis..
My understanding is that insulin resistance in horses is more like type 2 diabetes...
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