The changes of negative charge on RBC and glomeruli were studied by alcian blue staining and electron computerized picture analysis respectively.
The results showed that the negative charge on RBC and glomeruli decreased significantly in nephrotic children and this change was related to the active stage of nephrotic syndrome. There was a positive relation between the changes of negative charge on glomeruli and those on RBC. There was no difference between the different pathologic group or clinic group about the change of negative charge on RBC and glomeruli in nephrotic syndrome.