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The Mildly Elevated Serum Bilirubin Level is Negatively Associated with the Incidence of End Stage Renal Disease in Patients with IgA Nephropathy

Cited 28 time in Web of Science Cited 28 time in Scopus
Authors
Chin, Ho Jun; Cho, Hyun Jin; Lee, Tae Woo; Na, Ki Young; Joo, Kwon Wook; Kim, Yon-Su; Han, Jin Suk; Jeon, En Sil; Kim, Yong-Lim; Lee, Sang Koo; Lim, Chun Soo; Oh, Yoon Kyu; Lee, Jung Eun; Kim, Yoon Goo; Kim, Seong Gyun; Song, Young Rim; Kim, Chan-Duck; Park, Sun-Hee; Jo, Sang-Kyung; Kim, Hyoung Kyu; Cho, Won Yong; Chae, Dong-Wan; Jin, Dong Chan; Kim, Suhnggwon; Ahn, Curie; Yoon, Hyung Jin; Oh, Kook Hwan
Issue Date
2009-01
Publisher
KOREAN ACAD MEDICAL SCIENCES
Citation
JOURNAL OF KOREAN MEDICAL SCIENCE; Vol.24 ; S22-S29
Keywords
BilirubinKidney FailureGlomerulonephritisChronicIGA
Abstract
Oxidative stress plays various roles in the development and progression of IgA nephropathy, while bilirubin is known as a potent antioxidant. We therefore hypothesized that serum bilirubin would be associated with renal prognosis in IgA nephropathy. The study subjects comprised 1,458 adult patients with primary IgA nephropathy in Korea. We grouped patients according to the following quartile levels of bilirubin: <0.4 mg/dL (Q1), 0.4-0.5 mg/dL (Q2),0.6-0.7 mg/dL (Q3), and >0.8 mg/dL (Q4). The outcome data were obtained from the Korean Registry of end-stage renal disease (ESRD). Eighty patients (5.5%) contracted ESRD during a mean follow-up period of 44.9 months. The ESRD incidences were 10.7% in Q1, 8.2% in Q2, 2.8% in Q3, and 2.8% in 04 (p<0.001). The relative risk of ESRD compared to that in Q1 was 0.307 (95% confidence interval [CI], 0.126-0.751) in Q3 and 0.315 (95% CI, 0.130-0.765) in Q4. The differences of ESRD incidence were greater in subgroups of males and of patients aged 35 yr or more, with serum albumin 4.0 g/dL or more, with normotension, with eGFR 60 mL/min/1.73 m(2) or more, and with proteinuria less then 3+ by dipstick test. In conclusion, higher bilirubin level was negatively associated with ESRD incidence in IgA nephropathy.
ISSN
1011-8934
Language
English
URI
http://hdl.handle.net/10371/76353
DOI
https://doi.org/10.3346/jkms.2009.24.S1.S22
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College of Medicine/School of Medicine (의과대학/대학원)Internal Medicine (내과학전공)Journal Papers (저널논문_내과학전공)
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