 - Nephrotic syndrome; 24h urine protein excretion 3 grams if baseline urinalysis reveals 1 proteinuria, quantification will be performed ANDOR calculated creatinine clearance by the equation of Baracskay and Jarjoura for ambulatory elderly subjects Cr clearance 4.4serum creatinine mmolL 88-age63 30 mlmin ANDOR serum creatinine concentration 0.2mmoll. 