The proportion of progression of renal functions at month 1 , 3 , and 6 of follow-ups in the experimental group was 0.0 % ( 0 case ) , 9.55 % ( 8 cases ) , and 21.4 % ( 18 cases ) , while they were 8.3 % ( 7 cases ) , 21.4 % ( 18 cases ) , and 40.5 % ( 34 cases ) in the control group .