Proteinuria is common in children and may represent a benign condition or a serious underlying renal disease or systemic disorder. Proteinuria may occur secondary to glomerular or tubular dysfunction. Although a 24-hour urine protein excretion test is usually recommended, it may be impractical in children. A spot, first-morning urine test for protein/creatinine ratio can be useful in this situa...

Acute tubulointerstitial nephritis (TIN) is a common cause of acute renal impairment, characterized by the infiltration of inflammatory cells in the interstitium of the kidney. We retrospectively reviewed the medical records of 19 acute TIN patients attended to our Pediatric Nephrology department between April 1999 and April 2014. Nineteen patients (7 boys and 12 girls) were evaluated. The medi...

abstract pseudoxanthoma elasticum is a rare, hereditary, multisystemic disease affecting the skin, eye, and cardiovascular system. renal involvement is uncommon. we describe two cases of pseudoxanthoma elasticum (pxe) in two women with distinctive skin lesions and nephrocalcinosis that renal ultrasonography showed a characteristic pattern of dotted increased echogenicity in the corticomedullary...

BACKGROUND In a healthy kidney, contractile protein alpha-smooth muscle actin (ASMA) is immunohistochemically strongly expressed only in the blood vessels, while in pathological conditions it can be visualized in glomerular mesangial cells and interstitial myofibroblasts. The aim of this study was to explore the possible correlation between expression of ASMA in glomerulonephritis (GN) and indi...

Aretrospective investigation was conducted by members of the Japanese Society for Pediatric Nephrology from 1990 to 1997 to define the clinical features and outcome of antineutrophil cytoplasmic autoantibody (ANCA)-associated glomerulonephritis in children. Thirty-four ANCA-seropositive Japanese pediatric patients with biopsy-proven pauci-immune necrotizing crescentic glomerulonephritis were id...

Objective: The evidences from experimental and epidemiological studies suggests that elevated serum homocysteine levels may lead to renal injury be a significant risk factor for the development of chronic kidney disease. aim this study was investigate possible relationship between level crescent formation in children with IgA nephropathy Henoch-Schonlein purpura nephritis. Material Methods: A t...

BACKGROUND There is no clear consensus regarding optimal indications or timing of initial or repeat kidney biopsy in the management of pediatric systemic lupus erythematosus (pSLE). METHODS A web-based survey was designed to assess current practice patterns among pediatric nephrologists and pediatric rheumatologists and distributed to members of Midwest Pediatric Nephrology Consortium (MWPNC)...

This review compares the biopsy patterns, complications, responses to therapy, and long-term outcomes of idiopathic NS in children and adults. On first examination, distinctions between the pediatric and adult diseases seem more quantitative than absolute. However, underlying determinants of outcome, including immunocompetence, growth, maturity, and senescence, can present very different challe...