Q: Max, our 7-year-old terrier mix, lost his energy, stopped eating and started vomiting. His veterinarian diagnosed ...

Diabetes mellitus in dogs is caused by impaired insulin secretion of the pancreas, insulin resistance failure, or both.

By August they had the first conclusive results: when they gave the material extracted from the islets of Langerhans (called "insulin," from the Latin for "island") to diabetic dogs, their ...