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Updated: Jan 23, 2026

Quantification of Coenzyme A in Cells and Tissues
Published on: September 27, 2019
Insulin autoimmune syndrome possibly caused by coenzyme Q10
1Third Department of Internal Medicine, Shirakawa Kosei General Hospital, Japan.
Abstract:
A 52-year-old woman was transported for reduced consciousness. Her blood glucose was only 19 mg/dL, but her blood immunoreactive insulin and insulin antibody levels were high at 250 μU/mL and 50 U/mL, respectively. She had no history of insulin treatment, but she had been taking coenzyme Q10 supplements for three months. Her human leukocyte antigen serotype was DR4. After stopping coenzyme Q10, her hypoglycemia disappeared and immunoreactive insulin and insulin antibody levels normalized. Based on the above, she was diagnosed with insulin autoimmune syndrome caused by coenzyme Q10. It is necessary to be aware of the onset of insulin autoimmune syndrome due to coenzyme Q10. Its pathogenesis requires clarification.
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