Document Details Document Type : Article In Journal  Document Title : C1q nephropathy in two young sisters C1q nephropathy in two young sisters   Document Language : English  Abstract : C1q nephropathy (C1qNP) is a controversial and uncommon form of glomerulonephritis, characterized by mesangial immunoglobulin and complement deposits, predominantly C1q, with no evidence of systemic lupus erythematosus. Clinically, it may present as nephrotic syndrome and non-nephrotic proteinuria per se or associated with microhematuria, hypertension, or renal insufficiency. We describe two sisters with C1qNP, who presented with steroid-resistant nephrotic syndrome. Both sisters presented before the age of 2 years, and they showed a poor response to other immunosuppressive therapy. Both girls had normal serum complement levels, negative antinuclear antibodies (ANAs) and negative hepatitis B antigen. Renal biopsy in both patients showed histological features of mesangioproliferative glomerulonephritis, with diffuse “full-house” positive immunofluorescence reaction in the mesangial area. The immunofluorescence reaction for C1q was most intense and co-dominant with IgG in both patients. Correspondingly, electron microscopy demonstrated dense deposits mainly in the mesangial areas too.We report on two young sisters with the characteristic features of C1qNP presented in early childhood. To the best of our knowledge, this is the first report of C1qNP in siblings  ISSN : 0931-041X  Journal Name : Pediatric Nephrology  Volume : 23  Issue Number : 3  Publishing Year : 1428 AH 2007 AD  Article Type : Article  Added Date : Sunday, March 16, 2008  Researchers Researcher Name (Arabic) Researcher Name (English) Researcher Type Dr Grade Email جميلة قاري Kari, Jameela Investigator Doctorate jkari@doctors.org.uk سوسن جللة Jalalah, Sawsan Researcher Doctorate   Files File Name Type Description  C1q nephropathy.pdf pdf مشاهدة المقالة العلمية كاملة Back To Researches Page