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C1q nephropathy in adults is a form of focal segmental glomerulosclerosis in terms of clinical characteristics

Title
C1q nephropathy in adults is a form of focal segmental glomerulosclerosis in terms of clinical characteristics
Authors
Kim, KipyoSon, Hyung-EunRyu, Ji-YoungLee, HajeongHan, Seung HyeokRyu, Dong-RyeolPaik, Jin HoKim, SejoongNa, Ki YoungChae, Dong-WanChin, Ho JunOh, Se Won
Ewha Authors
류동열
SCOPUS Author ID
류동열scopus
Issue Date
2019
Journal Title
PLOS ONE
ISSN
1932-6203JCR Link
Citation
PLOS ONE vol. 14, no. 4
Publisher
PUBLIC LIBRARY SCIENCE
Indexed
SCIE; SCOPUS WOS scopus
Document Type
Article
Abstract
Although C1q nephropathy (C1qN) was introduced three decades ago, the clinical significance and renal outcomes of C1qN remain unclear. This study aimed to evaluate the clinical characteristics of C1qN, including renal outcomes, by performing a matched comparison within a multicenter cohort. We enrolled 6,413 adult patients who underwent kidney biopsy between January 2000 and January 2018 at three tertiary hospitals in Korea. We compared the clinical characteristics of 23 patients with C1qN with those of patients with focal segmental glomerulosclerosis (FSGS) or minimal change disease (MCD) who were matched by age, sex, diabetic status, and a period of biopsy. Histological and clinical parameters in patients with C1qN were also evaluated according to the different pathological phenotypes. For a mean follow-up period of 92 months, 4 patients with C1qN (17.4%) developed end-stage renal disease (ESRD). None of the matched patients with MCD had ESRD, but 7 (30.4%) of patients with FSGS progressed to ESRD, which was not different from that of C1qN patients (p = 0.491). Laboratory and pathological findings, except segmental glomerulosclerosis, were not notably different between FSGS and C1qN. The presence of segmental glomerulosclerosis, mesangial hypercellularity, and podocyte effacement did not affect both the short-and long-term renal outcomes in patients with C1qN. Our study showed that the renal outcomes of C1qN are comparable with those of FSGS, and not with MCD. Specific pathological findings, including segmental glomerulosclerosis in C1qN, were not associated with renal outcomes, which may suggest homogeneity in the clinical features of C1qN.
DOI
10.1371/journal.pone.0215217
Appears in Collections:
의과대학 > 의학과 > Journal papers
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