Videos by Merri Pendergrass, MD


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Type 1 Explained

In classic type 1 diabetes, people have just stopped making insulin. Their pancreas (the organ that makes insulin) doesn’t work anymore. That’s usually an autoimmune problem – it’s something that people are born with and we don’t know what causes it or how to prevent it. An autoimmune destruction of the cells that make insulin cause the person to be insulin-deficient and that’s what causes type 1 diabetes.

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Merri Pendergrass, MD

  • Board Certified Endocrinologist
  • Professor of Medicine at the University of Arizona College of Medicine
  • Director of the Adult Diabetes Program

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