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World J Nephrol. Dec 25, 2025; 14(4): 110749
Published online Dec 25, 2025. doi: 10.5527/wjn.v14.i4.110749
Biomarkers innovation in urinary tract infections: Insights into pathophysiology, antibiotic resistance, and clinical applications
Swathi Pandey, Arul Senghor Kadalangudi Aravaanan, Emmanuel Bhaskar, Santhi Silambanan
Swathi Pandey, Emmanuel Bhaskar, General Medicine, Sri Ramachandra Institute of Higher Education and Research, Chennai 600116, Tamil Nādu, India
Arul Senghor Kadalangudi Aravaanan, Department of Biochemistry, SRM Medical College Hospital and Research Centre, Chennai 603203, Tamil Nadu, India
Santhi Silambanan, Department of Biochemistry, Sri Ramachandra Institute of Higher Education and Research, Chennai 600116, Tamil Nādu, India
Co-corresponding authors: Emmanuel Bhaskar and Santhi Silambanan.
Author contributions: Swathi P, Bhaskar E, Aravaanan ASK, and Silambanan S designed the research study, analyzed the data and wrote the manuscript; Swathi P and Silambanan S contributed analytic tools; Bhaskar E and Silambanan S have played important and indispensable roles in the manuscript preparation as the co-corresponding authors; all authors have read and approved the final manuscript.
Conflict-of-interest statement: The authors declare that there were no conflicts of interest.
Open Access: This article is an open-access article that was selected by an in-house editor and fully peer-reviewed by external reviewers. It is distributed in accordance with the Creative Commons Attribution NonCommercial (CC BY-NC 4.0) license, which permits others to distribute, remix, adapt, build upon this work non-commercially, and license their derivative works on different terms, provided the original work is properly cited and the use is non-commercial. See: https://creativecommons.org/Licenses/by-nc/4.0/
Corresponding author: Santhi Silambanan, MD, Professor, Department of Biochemistry, Sri Ramachandra Institute of Higher Education and Research, Porur, Chennai 600116, Tamil Nādu, India. santhisilambanan@sriramachandra.edu.in
Received: June 16, 2025
Revised: June 30, 2025
Accepted: October 15, 2025
Published online: December 25, 2025
Processing time: 192 Days and 23.8 Hours
Core Tip

Core Tip: Urinary tract infections (UTIs) are prevalent and often require timely diagnosis to prevent complications. The emerging urinary biomarkers, including neutrophil gelatinase-associated lipocalin, kidney injury molecule-1, interleukin (IL)-6, IL-8, heparin-binding protein, procalcitonin, lipopolysaccharide-binding protein, xanthine oxidase, cell-free DNA, and transrenal DNA, have shown potential in identifying infection severity, organ dysfunction, and antibiotic resistance. The review further examines how integrating these biomarkers with advanced biosensor-based diagnostic tools can enhance diagnostic sensitivity, facilitate point-of-care testing, and improve clinical outcomes. The review also underscores the importance of validating and standardizing biomarker-based diagnostics to bridge laboratory innovations with clinical application, ultimately supporting more accurate, rapid, and personalized UTI management.