title: Dense deposit disease in Korean children: a multicenter clinicopathologic study.
abstract: The purpose of this study was to investigate the clinical, laboratory, and pathologic characteristics of dense deposit disease (DDD) in Korean children and to determine whether these characteristics differ between Korean and American children with DDD. In 2010, we sent a structured protocol about DDD to pediatric nephrologists throughout Korea. The data collected were compared with previously published data on 14 American children with DDD. Korean children had lower 24-hr urine protein excretion and higher serum albumin levels than American children. The light microscopic findings revealed that a higher percentage of Korean children had membranoproliferative glomerulonephritis patterns (Korean, 77.8%; American, 28.6%, P = 0.036), whereas a higher percentage of American children had crescents (Korean, 0%; American, 78.6%, P < 0.001). The findings from the electron microscopy revealed that Korean children were more likely to have segmental electron dense deposits in the lamina densa of the glomerular basement membrane (Korean, 100%; American, 28.6%, P = 0.002); mesangial deposit was more frequent in American children (Korean, 66.7%; American, 100%, P = 0.047). The histological findings revealed that Korean children with DDD were more likely to show membranoproliferative glomerulonephritis patterns than American children. The degree of proteinuria and hypoalbuminemia was milder in Korean children than American children.
authors.affiliation: Department of Pediatrics, Ajou University Hospital, Ajou University School of Medicine, Suwon, Korea.
authors.forename: Se Jin
authors.initials: SJ
authors.lastname: Park
authors.forename: Yong-Jin
authors.initials: YJ
authors.lastname: Kim
authors.forename: Tae-Sun
authors.initials: TS
authors.lastname: Ha
authors.forename: Beom Jin
authors.initials: BJ
authors.lastname: Lim
authors.forename: Hyeon Joo
authors.initials: HJ
authors.lastname: Jeong
authors.forename: Yong Hoon
authors.initials: YH
authors.lastname: Park
authors.forename: Dae Yeol
authors.initials: DY
authors.lastname: Lee
authors.forename: Pyung Kil
authors.initials: PK
authors.lastname: Kim
authors.forename: Kyo Sun
authors.initials: KS
authors.lastname: Kim
authors.forename: Woo Yeong
authors.initials: WY
authors.lastname: Chung
authors.forename: Jae Il
authors.initials: JI
authors.lastname: Shin
mesh_terms: D000293:Adolescent; D044466:Asian People; D002648:Child; D002675:Child, Preschool; D003404:Creatinine / Q000097:blood; D004487:Edema / Q000209:etiology; D005260:Female; D015432:Glomerulonephritis, Membranoproliferative / Q000473:pathology*; D006417:Hematuria / Q000209:etiology; D006801:Humans; D007223:Infant; D007231:Infant, Newborn; D008297:Male; D008854:Microscopy, Electron; D011507:Proteinuria / Q000209:etiology; D056910:Republic of Korea; D012709:Serum Albumin / Q000032:analysis; D014481:United States
chemical_list: D012709:Serum Albumin; D003404:Creatinine
keywords: Dense Deposit Disease; Electron-Dense Deposit; Membranoproliferative Glomerulonephritis