Which cells in the kidney produce 1,25 dihydroxy - cholecalciferol?: (A) Granular cells, (B) Proximal convoluted tubule cells, (C) Mesangial cells, (D) Peritubular cells
Answer is B. Ans. B Proximal convoluted tubular cellsRef: Contemporary Nephrology, 1st ed. pg. 164 and Indu KhuranaGranular cellsProduce reninProximal convoluted cellsContain 1 alpha hydroxylase that is essential to produce vitamin D3 Mesangial cellsRegulate RBC leakagePeritubular cellsProduce erythropoietin