Uric Acid and Impairment of Renal Function in Non-diabetic Hypertensive Patients

Bibliographic Details
Title: Uric Acid and Impairment of Renal Function in Non-diabetic Hypertensive Patients
Authors: Yi-Hsin Hung, Chin-Chou Huang, Liang-Yu Lin, Jaw-Wen Chen
Source: Frontiers in Medicine, Vol 8 (2022)
Publisher Information: Frontiers Media S.A., 2022.
Publication Year: 2022
Collection: LCC:Medicine (General)
Subject Terms: Chinese, hypertension, renal function, nephropathy, uric acid, Medicine (General), R5-920
More Details: Hyperuricemia is a risk factor for renal impairment. However, investigations focusing on patients with hypertension are limited and inconsistent. A single-center prospective cohort study of 411 Han Chinese non-diabetic hypertensive patients was conducted in Taiwan. The mean age of the participants was 62.0 ±14.4 years. The baseline estimated glomerular filtration rate and uric acid level were 86 mL/min/1.73 m2 and 6.2 mg/dL, respectively. All patients underwent serum biochemistry tests for creatinine levels every 3 months. Renal events were defined as >25% and >50% decline in estimated glomerular filtration rate. During an average follow-up period of 4.7 ± 2.9 years (median 4.0 years), a >25 and >50% decline in estimated glomerular filtration rate was noted in 52 and 11 patients, respectively. The multivariate Cox regression analysis revealed that a baseline uric acid level ≥8.0 mg/dL increased the risk of >25% decline (hazard ratio: 3.541; 95% confidence interval: 1.655–7.574, P = 0.001) and >50% decline (hazard ratio: 6.995; 95% confidence interval: 1.309–37.385, P = 0.023) in estimated glomerular filtration rate. Similarly, a baseline uric acid level ≥7.5 mg/dL was independently associated with >25% decline (hazard ratio: 2.789; 95% confidence interval: 1.399–5.560, P = 0.004) and >50% decline (hazard ratio: 6.653; 95% confidence interval: 1.395–31.737, P = 0.017). However, this was not demonstrated at baseline uric acid level ≥7.0 mg/dL. Our study suggests that hyperuricemia is an independent risk factor for the decline in renal function in patients with hypertension. Uric acid level ≥7.5 mg/dL may be considered as the optimal cutoff value for clinical practice in predicting the development of renal impairment.
Document Type: article
File Description: electronic resource
Language: English
ISSN: 2296-858X
Relation: https://www.frontiersin.org/articles/10.3389/fmed.2021.746886/full; https://doaj.org/toc/2296-858X
DOI: 10.3389/fmed.2021.746886
Access URL: https://doaj.org/article/a3f09a2e27c34310b6bd01e5ffa9546e
Accession Number: edsdoj.3f09a2e27c34310b6bd01e5ffa9546e
Database: Directory of Open Access Journals
More Details
ISSN:2296858X
DOI:10.3389/fmed.2021.746886
Published in:Frontiers in Medicine
Language:English