Abstract

Pediatric renal injury is an emerging health concern in communities affected by chronic kidney disease of uncertain etiology (CKDu). Early detection of susceptibilities through highly sensitive and specific biomarkers can lead to effective therapeutic and preventive interventions against renal diseases. Here, we aimed to investigate the utility of kidney injury molecule (KIM-1) and neutrophil gelatinase-associated lipocalin (NGAL) in early detection of renal abnormalities in selected pediatric communities in Sri Lanka. The study areas were stratified as CKDu endemic, emerging, and non-endemic based on the prevalence of CKDu, and a total of 804 school students (10–18 years of age) participated in the study. The median (IQR) urinary KIM-1 levels of the participants were 0.193 (0.026–0.338), 0.082 (0.001–0.220) and 0.040 (0.003–0.242) ng/mgCr for CKDu endemic, emerging and non-endemic regions respectively. Participants from CKDu endemic regions reported elevated (p < 0.0001) urinary KIM-1 expression compared to those from the other regions. The median (IQR) NGAL levels in participants from CKDu endemic (2.969; 1.833–5.641), emerging (3.374; 1.766–6.103), and non-endemic (3.345; 1.742–5.128 ng/mgCr) regions showed no significant difference. Also, urinary albumin-creatinine ratio (UACR) showed no significant differences across gender or residency. The prevalence of albuminuria was 1–2% in the locations irrespective of CKDu burden. Albuminuric participants reported higher (p < 0.05) urinary KIM-1 levels in comparison to normoalbuminuric participants. Significantly elevated urinary KIM-1 expression in a pediatric population from CKDu affected regions, especially in the presence of albuminuria, may indicate low-grade early renal damage supporting the utility of KIM-1 as a quantifiable biomarker.

Details

Title
Urinary biomarkers indicate pediatric renal injury among rural farming communities in Sri Lanka
Author
Gunasekara T D K S C 1 ; De Silva P Mangala C S 1 ; Ekanayake E M D V 2 ; Thakshila W A K G 1 ; Pinipa, R A, I 1 ; Sandamini P M M A 1 ; Gunarathna, S D 2 ; Chandana, E P, S 3 ; Jayasinghe, S S 4 ; Herath, C 5 ; Siribaddana Sisira 6 ; Jayasundara Nishad 7 

 University of Ruhuna, Department of Zoology, Faculty of Science, Matara, Sri Lanka (GRID:grid.412759.c) (ISNI:0000 0001 0103 6011) 
 University of North Dakota, Department of Biomedical Sciences, School of Medicine and Health Sciences, Grand Forks, USA (GRID:grid.266862.e) (ISNI:0000 0004 1936 8163) 
 University of Ruhuna, Department of Biosystems Technology, Faculty of Technology, Matara, Sri Lanka (GRID:grid.412759.c) (ISNI:0000 0001 0103 6011) 
 University of Ruhuna, Department of Pharmacology, Faculty of Medicine, Galle, Sri Lanka (GRID:grid.412759.c) (ISNI:0000 0001 0103 6011) 
 Sri Jayewardenepura General Hospital, Department of Nephrology, Colombo, Sri Lanka (GRID:grid.415398.2) (ISNI:0000 0004 0556 2133) 
 Rajarata University, Department of Medicine, Faculty of Medical and Allied Sciences, Saliyapura, Sri Lanka (GRID:grid.430357.6) (ISNI:0000 0004 0433 2651) 
 Duke University, The Nicholas School of the Environment, Durham, USA (GRID:grid.26009.3d) (ISNI:0000 0004 1936 7961) 
Publication year
2022
Publication date
2022
Publisher
Nature Publishing Group
e-ISSN
20452322
Source type
Scholarly Journal
Language of publication
English
ProQuest document ID
2664959471
Copyright
© The Author(s) 2022. This work is published under http://creativecommons.org/licenses/by/4.0/ (the “License”). Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License.