RESUMO
Plasma histamine and serotonin concentrations were measured using fluorimeteric assay in 40 children with renal diseases. Minimal change nephrotic syndrome [15] focal segmental glomerulosclerosis [10] and acute post streptococcal glomerulonephritis [15] to determine the relation between plasma levels of histamine and serotonin and these various types of renal diseases in children. Plasma histamine level was significantly increased in-group of children with acute post streptococcal glomerulonephritis. Plasma serotonin levels were significantly increased in all 3 groups of patient, when compared with those of controls. Raised plasma histamine in acute post streptococcal glomerulonephritis group may be evidence of the acute immunological inflammation and defective renal excretion due to mild renal impairment in these children. Raised plasma serotonin in all 3 groups of patients may be due to diminished uptake and release of serotonin from platelets in children with minimal change nephrotic syndrome and focal segmental glomerulosclerosis and due to defective renal execration in children with acute post streptococcal glomerulo-nephritis