INS and diabetes mellitus: A 35 year-old Iraqi male was referred to our diabetes clinic for insulin-treated DM, impaired renal function with a serum creatinine level of 188 mmol/L (normal reference range is 45-105 mmol/L), gross proteinuria of 2.7 g/day, and a fasting blood sugar level of 13.7 mmol/L (RR is 3.9-6.1 mmol/L).