2019; Adult; Alanine aminotransferase*; Albumin; Alkaline phosphatase; Alpha-glucosidase inhibitors; Angiotensin-converting enzyme inhibitors; Anti-insulin receptor antibodies*; Antinuclear antibody; Asian - Japanese; Aspartate aminotransferase*; Autoimmune disorders; BMI; Betamethasone; C-peptide (24-hour urine); Creatinine (serum); Diabetes; Diabetic nephropathy; Diuretics; Gamma-glutamyltranspeptidase*; Glucocorticoids; Glucose (blood, fasting); Glucosuria; Haematuria; Haemoglobin A1c; Hyperglobulinaemia; Hyperglycaemia; Hyperinsulinaemia; Hypoglycaemia; Immunoglobulin A; Immunoglobulins; Insulin; Insulin resistance; Japan; Ketonuria; Kidney; Male; Nephrology; Neutropaenia*; Novel treatment; November; Platelet count; Proteinuria; Red blood cell count; Thrombocytopenia; Urinalysis; Voglibose; Weight; Weight loss; White blood cell count