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Journal of the Korean Society of Pediatric Nephrology 2002;6(1): 48-55.
사구체 기저막 비박화 소견을 보인 미세변화 신증후군에 관한 고찰
김창우, 조민현, 고철우, 구자훈, 곽정식
1경북대학교 의과대학 소아과학교실
2경북대학교 의과대학 소아과학교실
3경북대학교 의과대학 소아과학교실
4경북대학교 의과대학 소아과학교실
5경북대학교 의과대학 병리학교실
A Study on the Association of Thin Glomerular Basement Membrane Abnormality with Minimal Change Nephrotic Syndrome
Chang-Woo Kim, Min-Hyun Cho, Cheol-Woo Ko, Ja-Hoon Koo, Jung-Sik Kwak
1Department of Pediatrics, Kyungpook University, College of Medicine
2Department of Pediatrics, Kyungpook University, College of Medicine
3Department of Pediatrics, Kyungpook University, College of Medicine
4Department of Pediatrics, Kyungpook University, College of Medicine
5Department of Pathology, Kyungpook University, College of Medicine
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ABSTRACT
Purpose: Thin glomerular basement membrane nephropathy (TGBMN) is recognized as the leading cause of microscopic hematuria in both children and adults. However thinning of glomerular basement membrane (TCBM) has been found in healthy adult and also is known to be associated with various renal diseases such as Alport syndronh, IgA nephropathy and mesangial proliferative glomerulonephritis. The association of TGBM with minimal change nephrotic syndrome (MCNS) has been very rare so that the present study was undertaken to determine the relationship between TGBM and MCNS.
Methods: The study population consisted of 49 children with biopsy- proven MCNS who have been admitted to the pediatric department of Kyungpook University Hospital during the past 5 years from 1997 to 2001. Group I consisted of 8 children associated with TGBM and Group II 41 children without TCBM. Various parameters such as age of illness, duration from discovery of illness to the time of biopsy, family history of hematuria and other laboratory tests were compared between these two groups and the following results were obtained.
Results : Age distribution showed slightly older age in Group I ($7.1{pm}3.5$ years) compared to Group II ($4.8{pm}2.9$ years). However this was not statistically different (P=0.056). Family history of hematuria was noted in 2 cases in Group II. Though statistically not significant, hematuria was seen in 2 out of 8 cases ($25%$) in MCNS children with TGBM, compared to 7 out of 41 cases ($17%$) with MCNS children without TGBM. Other parameters such as BUN, creatinine, 24 hours urine protein excretion, serum protein, albumin, cholesterol, and T4/T8 ratio, showed no difference. Also renal biopsy finding showed no significant difference and the thickness of glomerular basement membrane in Croup I was $188{pm}30nm$.
Conclusion : TGBM was found in 8 out of 49 children with MCNS ($16.3%$). And this high frequency of occurrence indicates that these association is not an incidental findings. Typical clinical findings of TCBMN was not noted in all of the 8 children with MCNS associated with TGBM, suggesting that thinning of glomerular basement membrane (TCBN) is secondary to rather than the cause of MCNS. (J Korean Soc Pediatr Nephrol 2002;6: 48-55)
Key words: Thin Glomerular Basement Nephropathy | Minimal Change Nephrotic Syndrome
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