The Indian Journal of Pediatrics

, Volume 72, Issue 9, pp 777–783 | Cite as

Genetics of idiopathic nephrotic syndrome

Symposium on Pediatria Nephrology


Nephrotic syndrome (NS) is a pathological entity characterized by massive proteinuria and has diverse etiology. Although it is one of the most common renal diseases in children, the etiological factors responsible for idiopathic NS/FSGS remain largely unknown. Previous studies had implicated a variety of factors including genetic factors, although NS is generally regarded as a sporadic disease. Familial cases of NS have however been reported periodically, and both autosomal dominant and recessive forms have been identified. Studies of familial NS /FSGS have led to the discovery of several genes that are expressed in podocytes and are associated with proteinuria. These discoveries have shifted the focus from glomerular basement membrane (GBM) to recognition of the central role of podocytes in maintaining glomerular perm selectivity and pathogenesis of NS/FSGS. Associations with various genes (NPHS1, ACTN4, NPHS2, WT-1) and linkage to several chromosomal regions (such as 19q13,11q21,11q24) have been reported in patients with familial NS/FSGS.

Key words

Nephrotic syndrome Proteinuria Genetic factors Podocytes 


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Copyright information

© Dr. K C Chaudhuri Foundation 2005

Authors and Affiliations

  1. 1.Department of Pediatrics, Division of Pediatric Nephrology, Children’s Hospital of PittsburghUniversity of Pittsburgh School of MedicinePittsburghUSA

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