A 70‐year‐old woman who was diagnosed with multiple myeloma underwent chemotherapy. Three months after beginning chemotherapy, she was readmitted to the hospital because of fever and hepatopathy. Her elevated Epstein–Barr virus (EBV) antibody levels showed that the hepatopathy was caused by reactivation of EBV. On the 18th hospital day, the levels of fasting plasma glucose (FPG; 451 mg/dL) and pancreatic enzymes were suddenly elevated. Elevation of HbA1c level (6.4%) was slight, as compared with that of the FPG level. Arterial blood gas analysis showed metabolic acidosis and diabetic ketoacidosis was suspected. The serum C‐peptide level was below the detectable limit both before and after glucagon load, thereby suggesting an insulin‐dependent state. These features were identical to the features for fulminant type 1 diabetes mellitus. The levels of EBV anti‐viral capsid antigen immunoglobulin M decreased, and the clinical course was identical to that associated with reactivation of EBV infection. (J Diabetes Invest, doi: 10.1111/j.2040.1124.2010.00061.x, 2010)

Topiroxostat 160 mg daily reduced albuminuria in patients with diabetic nephropathy. (Funded by Sanwa Kagaku Kenkyusho; Trial registration, UMIN000015403).

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