Ketosis-prone Diabetes and Hypogonadism: A New Clinical Association to be Aware of ?

Background: Ketosis-prone diabetes (KPD) is an emerging entity, sharing features of both type 1 diabetes mellitus and type 2 diabetes mellitus. Patients with KPD usually present with diabetic ketoacidosis without the classic phenotype of autoimmune type 1 diabetes. In most cases, they are Afro-American adults, who require insulin therapy for the management of acute decompensation, then usually encountering insulin-free remission for prolonged periods of time with diet or with non-insulin agents. Meanwhile, hypogonadism is a known condition that could be associated with higher risk of developing both type 1 and type 2 diabetes and could be a risk factor for decompensated diabetes. The association of KPD and hypogonadism is reported for the first time in literature.
Case Presentation: Here we report two peculiar cases of young African patients, affected by KPD and hypergonadotropic hypogonadism, respectively Klinefelter's syndrome and primary ovarian failure. Both patients were treated promptly for the ketoacidosis with intravenous fluids combined with continuous insulin infusion, and then switched to subcutaneous regimen. After the correct clinical evaluation, oral antidiabetic drugs were added.
Conclusion: KPD remains an under-recognized and under-diagnosed type of diabetes. As hypogonadism is strongly linked to dysmetabolic disorders, the evaluation of sex hormones should be performed at the onset of diabetes. Further studies should investigate the hypothalamic-pituitary-gonadal axis and its role in the development of KDP and its manifestations and complications.
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