Plasma Levels of Polyunsaturated Fatty Acids and Adverse Kidney Outcomes

医学 多不饱和脂肪酸 不利影响 内科学 肾脏疾病 生理学 内分泌学 脂肪酸 生物化学 化学
作者
Hee Byung Koh,Hyung Woo Kim,Young Su Joo,Chan‐Young Jung,Hyo Jeong Kim,Tae Ik Chang,Jung Tak Park,Tae‐Hyun Yoo,Shin‐Wook Kang,Seung Hyeok Han
出处
期刊:American Journal of Kidney Diseases [Elsevier BV]
卷期号:84 (2): 179-194.e1 被引量:5
标识
DOI:10.1053/j.ajkd.2023.12.020
摘要

ABSTRACT

Rationale & Objective

Many studies have reported polyunsaturated fatty acids (PUFA) as significant predictors of cardiovascular disease, but little is known about the relationship between PUFA levels and chronic kidney disease (CKD). This study explored this relationship among individuals with and without CKD.

Study Design

Prospective observational cohort study.

Setting & Participants

78,950 participants without CKD (cohort 1) and 7,233 participants with CKD (cohort 2) in the UK Biobank Study with PUFA levels measured between 2007 and 2010.

Exposures

Percentage of plasma PUFA, omega-3 fatty acid (FA), omega-6 FA, docosahexaenoic acid (DHA), and linoleic acid relative to total fatty acid.

Outcomes

Incident CKD for cohort 1 and incident kidney failure requiring replacement therapy (KFRT) for cohort 2.

Analytical Approach

Cox proportional hazards regression analyses, including a cause-specific competing risk model.

Results

In cohort 1, individuals with higher quartiles of plasma PUFA levels had healthier lifestyles and fewer comorbidities. During 841,007 person-years of follow-up (median 11.9 years), incident CKD occurred in 4.5% of participants (incidence rate, 39.1 per 10,000 person-years). For incident CKD in cohort 1, the adjusted cause-specific hazard ratios (HR) (95% CIs) for quartiles 2, 3, and 4 were 0.83 (0.75-0.92), 0.85 (0.76-0.96), 0.71 (0.62-0.82), respectively, compared with quartile 1. This inverse relationship was consistently observed for all PUFA types. In cohort 2, although, total PUFA levels were not associated with KFRT, higher PUFA subtype levels of DHA were associated with a lower risk of KFRT.

Limitations

Observational design and limited generalizability to individuals with higher disease severity; no data on eicosapentaenoic acid.

Conclusions

Among individuals without CKD, higher plasma PUFA levels and all four PUFA components were associated with a lower risk of incident CKD. In individuals with CKD, only the omega-3 component of PUFA, DHA, was associated with a lower risk of KFRT.
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