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High-protein diet with renal hyperfiltration is associated with rapid decline rate of renal function: a community-based prospective cohort study

Authors
 Jong Hyun Jhee  ;  Youn Kyung Kee  ;  Seohyun Park  ;  Hyoungnae Kim  ;  Jung Tak Park  ;  Seung Hyeok Han  ;  Shin-Wook Kang  ;  Tae-Hyun Yoo 
Citation
 Nephrology Dialysis Transplantation, Vol.35(1) : 98-106, 2020 
Journal Title
 Nephrology Dialysis Transplantation 
ISSN
 0931-0509 
Issue Date
2020
Keywords
estimated glomerular filtration rate ; kidney function ; protein intake ; rapid decline ; renal hyperfiltration
Abstract
BACKGROUND: The effect of a high-protein diet with renal hyperfiltration (RHF) on decline of kidney function has rarely been explored. We investigated the association between a high-protein diet, RHF and declining kidney function. METHODS: A total of 9226 subjects from the Korean Genome and Epidemiology Study, a community-based prospective study (2001-14), were enrolled and classified into quartiles according to daily amount of protein intake based on food frequency questionnaires. RHF was defined as estimated glomerular filtration rate (eGFR) with residuals of >95th percentile after adjustment for age, sex, history of hypertension or diabetes, height and weight. Rapid decline of renal function was defined as decline rate of eGFR >3 mL/min/1.73 m2/year. RESULTS: The relative risk of RHF was 3.48-fold higher in the highest than in the lowest protein intake quartile after adjustment for confounding factors [95% confidence interval (CI) 1.39-8.71]. The mean eGFR decline rate was faster as quartiles of protein intake increased. Furthermore, the highest quartile was associated with 1.32-fold increased risk of rapid eGFR decline (95% CI 1.02-1.73). When subjects were divided into two groups with or without RHF, the highest quartile was associated with a rapid decline in renal function only in RHF subjects (odds ratio 3.35; 95% CI 1.07-10.51). The sensitivity analysis using the Korean National Health and Nutrition Examination Survey (2008-15) data with 40 113 subjects showed that higher quartile was associated with increased risk for RHF. CONCLUSIONS: A high-protein diet increases the risk of RHF and a rapid renal function decline in the general population. These findings suggest that a high-protein diet has a deleterious effect on renal function in the general population.
Full Text
https://academic.oup.com/ndt/article/35/1/98/5511599
DOI
10.1093/ndt/gfz115
Appears in Collections:
1. College of Medicine (의과대학) > Dept. of Internal Medicine (내과학교실) > 1. Journal Papers
Yonsei Authors
Kang, Shin Wook(강신욱) ORCID logo https://orcid.org/0000-0002-5677-4756
Park, Seo Hyun(박서현)
Park, Jung Tak(박정탁) ORCID logo https://orcid.org/0000-0002-2325-8982
Yoo, Tae Hyun(유태현) ORCID logo https://orcid.org/0000-0002-9183-4507
Jhee, Jong Hyun(지종현)
Han, Seung Hyeok(한승혁) ORCID logo https://orcid.org/0000-0001-7923-5635
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/174919
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