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Biomarkers for urinary tract infection: present and future perspectives

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Abstract

A prompt diagnosis of urinary tract infection (UTI) is necessary to minimize its symptoms and limit sequelae. The current UTI screening by urine test strip analysis and microscopic examination has suboptimal diagnostic accuracy. A definitive diagnosis of UTI by urine culture takes two to three days for the results. These limitations necessitate a need for better biomarkers for the diagnosis and subsequent management of UTI in children. Here, we review the value of currently available UTI biomarkers and highlight the potential of emerging biomarkers that can facilitate a more rapid and accurate UTI diagnosis. Of the newer UTI biomarkers, the most promising are blood procalcitonin (PCT) and urinary neutrophil gelatinase-associated lipocalin (NGAL). PCT can provide diagnostic benefits and should be considered in patients who have a blood test for other reasons. NGAL, which is on the threshold of clinical care, needs more research to address its scope and utilization, including point-of-care application. Employment of these and other biomarkers may ultimately improve UTI diagnosis, guide UTI therapy, reduce antibiotic use, and mitigate UTI complications.

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Authors and Affiliations

  1. Pediatric Nephrologist, Wayne Pediatrics, Detroit, MI, USA

    Tej K. Mattoo

  2. Department of Pediatrics, Wayne State University School of Medicine, Detroit, MI, USA

    Tej K. Mattoo

  3. Department of Urology, Wayne State University School of Medicine, Detroit, MI, USA

    Tej K. Mattoo

  4. The Kidney and Urinary Tract Center, Nationwide Children’s Abigail Wexner Research Institute, Columbus, OH, USA

    John David Spencer

  5. The Ohio State University College of Medicine, Columbus, OH, USA

    John David Spencer

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Mattoo, T.K., Spencer, J.D. Biomarkers for urinary tract infection: present and future perspectives. Pediatr Nephrol (2024). https://doi.org/10.1007/s00467-024-06321-9

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