Hyperuricemia and its related histopathological features on renal biopsy

Shulei Fan, Ping Zhang, Amanda Ying Wang*, Xia Wang, Li Wang, Guisen Li, Daqing Hong

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

20 Citations (Scopus)
3 Downloads (Pure)

Abstract

Background: Hyperuricemia (HUA) is very common in chronic kidney disease (CKD). HUA is associated with an increased risk of cardiovascular events and accelerates the progression of CKD. Our study aimed to explore the relationship between baseline serum uric acid levels and renal histopathological features. Methods: One thousand seventy patients receiving renal biopsy in our center were involved in our study. The baseline characteristics at the time of the kidney biopsy were collected from Renal Treatment System (RTS) database, including age, gender, serum uric acid (UA), glomerular filtration rate (eGFR), serum creatinine (Cr), urea, albumin (Alb), 24 h urine protein quantitation (24 h-u-pro) and blood pressure (BP). Pathological morphological changes were evaluated by two pathologists independently. Statistical analysis was done using SPSS 21.0. Results: Among 1070 patients, 429 had IgA nephropathy (IgAN), 641 had non-IgAN. The incidence of HUA was 38.8% (n = 415), 43.8% (n = 188), and 43.2% (n = 277) in all patients, patients with IgAN and non-IgAN patients, respectively. Serum uric acid was correlated with eGFR (r = - 0.418, p < 0.001), Cr (r = 0.391, p < 0.001), urea (r = 0.410, p < 0.001), 24-u-pro (r = 0.077, p = 0.022), systolic blood pressure (SBP) (r = 0.175, p < 0.001) and diastolic blood pressure (DBP) (r = 0.109, p = 0.001). Multivariate logistic regression analysis showed that after adjustment for Cr, age and blood pressure, HUA was a risk factor for segmental glomerulosclerosis (OR = 1.800, 95% CI:1.309-2.477) and tubular atrophy/interstitial fibrosis (OR = 1.802, 95% CI:1.005-3.232). HUA increased the area under curve (AUC) in diagnosis of segmental glomerulosclerosis. Conclusions: Hyperuricemia is prevalent in CKD. The serum uric acid level correlates not only with clinical renal injury indexes, but also with renal pathology. Hyperuricemia is an independent risk factor for segmental glomerulosclerosis and tubular atrophy/interstitial fibrosis.

Original languageEnglish
Article number95
Pages (from-to)1-8
Number of pages8
JournalBMC Nephrology
Volume20
Issue number1
DOIs
Publication statusPublished - 18 Mar 2019
Externally publishedYes

Bibliographical note

Copyright the Author(s) 2019. Version archived for private and non-commercial use with the permission of the author/s and according to publisher conditions. For further rights please contact the publisher.

Keywords

  • Chronic kidney disease
  • Histopathological features
  • Hyperuricemia

Fingerprint

Dive into the research topics of 'Hyperuricemia and its related histopathological features on renal biopsy'. Together they form a unique fingerprint.

Cite this