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Serum leptin level and incidence of CKD: a longitudinal study of adult enrolled in the Korean genome and epidemiology study(KoGES)

 Yon Chul Park  ;  Solam Lee  ;  Young-Sang Kim  ;  Jae-Min Park  ;  Kunhee Han  ;  Hunju Lee  ;  Kyung-Won Hong  ;  Jong-Koo Kim  ;  Eun Suk Cho  ;  Tae-Ha Chung  ;  Bom-Taeck Kim  ;  Sang Baek Koh 
 BMC NEPHROLOGY, Vol.23(1) : 197, 2022-05 
Journal Title
Issue Date
Adult ; Female ; Humans ; Incidence ; Leptin* ; Longitudinal Studies ; Male ; Prospective Studies ; Renal Insufficiency, Chronic* / diagnosis ; Renal Insufficiency, Chronic* / epidemiology
Chronic kidney disease(CKD) ; Korean Genome and Epidemiology Study(KoGES) ; Leptin
Background: Chronic kidney disease(CKD) is a major public health issue and is highly prevalent in the general population. Leptin is an adipose tissue-derived endocrine factor that has been associated with several metabolic factors involved in cardiovascular diseases. Several studies have investigated the association between leptin and renal diseases so far. But the results are conflicting between the studies. The objective of our study was to verify the direct association of serum leptin level with CKD development.

Methods: This prospective cohort study included 2646 adult aged 40-70 without CKD in the Korean Genome and Epidemiology Study(KoGES) across South Korea from November 2005 to February 2012. The primary outcome was the development of CKD as defined by National Kidney Foundation Kidney Disease Outcomes Quality Initiative (KDOQI). Multivariate stepwise logistic regression analysis was done to assess the independent associations, for with the incident of CKD as the dependent variable, in tertiles of leptin values.

Results: Among 1100 men and 1546 women with 2.8 mean years of follow-up, incidence of CKD was 18(1.63%) for men and 50(3.23%) for women. In the multivariate logistic regression models, individuals in the highest serum leptin tertile showed significant associations with risk of CKD after adjustment compared to the lowest tertiles in the population. The crude odds ratio for trend was 2.95(p = 0.004) for men. After adjusting for age, baseline eGFR variables showed correlation with statistical significance (OR for trend = 2.25, p = 0.037) for men. The same trends were also seen observed in all population and women also, but no statistical significance was found.

Conclusions: Higher plasma leptin levels are associated with the incidence of CKD, independent of traditional factors such as age, baseline eGFR. Our results suggest that leptin may partly explain part of the reported association between obesity and kidney disease.
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1. College of Medicine (의과대학) > Dept. of Family Medicine (가정의학교실) > 1. Journal Papers
Yonsei Authors
Park, Jae Min(박재민) ORCID logo https://orcid.org/0000-0001-8873-8832
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