Figure 6: MAS receptor mRNA expression according to RT-PCRin human renal biopsy samples. Lane 1: size marker; Lanes 2 and 3: healthy controls; Lanes 4 and 5: patients with diabetic nephropathy; Lanes 6 and 7: patients with minimal change nephrotic syndrome. The 76-bp PCR product is the MAS receptor. Decreased mRNA expression was observed in the samples from the DN patients.