Evidence mapPaperPMID 41390447Full record

ArticleBMC research notes2025

Kidney injury risk in congenital solitary functioning kidney: the role of nephron mass assessed by serum uromodulin and the rs4293393 T > C polymorphism.

Stefano Guarino, Paola Tirelli, Anna Di Sessa, Mariantonia Braile, Francesca Maisto, Pietro Gizzone, Pier Luigi Palma, Emanuele Miraglia Del Giudice, Grazia Cirillo, Pierluigi Marzuillo

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Article in BMC research notes, 2025. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Not yet cited in PubMed.

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5 · Who and what money

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10 authors.

Stefano Guarino *Department of Woman, Child and of General and Specialized Surgery, Università degli Studi della Campania "Luigi Vanvitelli", Via Luigi De Crecchio 2, 80138, Naples, Italy.
Paola Tirelli *Department of Woman, Child and of General and Specialized Surgery, Università degli Studi della Campania "Luigi Vanvitelli", Via Luigi De Crecchio 2, 80138, Naples, Italy.
Anna Di SessaDepartment of Woman, Child and of General and Specialized Surgery, Università degli Studi della Campania "Luigi Vanvitelli", Via Luigi De Crecchio 2, 80138, Naples, Italy.
Mariantonia BraileDepartment of Woman, Child and of General and Specialized Surgery, Università degli Studi della Campania "Luigi Vanvitelli", Via Luigi De Crecchio 2, 80138, Naples, Italy.
Francesca MaistoDepartment of Woman, Child and of General and Specialized Surgery, Università degli Studi della Campania "Luigi Vanvitelli", Via Luigi De Crecchio 2, 80138, Naples, Italy.
Pietro GizzoneDepartment of Woman, Child and of General and Specialized Surgery, Università degli Studi della Campania "Luigi Vanvitelli", Via Luigi De Crecchio 2, 80138, Naples, Italy.
Pier Luigi PalmaDepartment of Woman, Child and of General and Specialized Surgery, Università degli Studi della Campania "Luigi Vanvitelli", Via Luigi De Crecchio 2, 80138, Naples, Italy.
Emanuele Miraglia Del GiudiceDepartment of Woman, Child and of General and Specialized Surgery, Università degli Studi della Campania "Luigi Vanvitelli", Via Luigi De Crecchio 2, 80138, Naples, Italy.
Grazia CirilloDepartment of Woman, Child and of General and Specialized Surgery, Università degli Studi della Campania "Luigi Vanvitelli", Via Luigi De Crecchio 2, 80138, Naples, Italy.
Pierluigi MarzuilloDepartment of Woman, Child and of General and Specialized Surgery, Università degli Studi della Campania "Luigi Vanvitelli", Via Luigi De Crecchio 2, 80138, Naples, Italy. pierluigi.marzuillo@unicampania.it.

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectiveWe hypothesized that serum uromodulin levels (sUMOD) and the uromodulin rs4293393 T > C polymorphism could aid in risk stratification for kidney injury (KI) in patients with a congenital solitary functioning kidney (CSFK), serving as markers of nephron mass. We tested this hypothesis in a cohort study of 56 CSFK patients followed from birth to adulthood. The rs4293393 polymorphism was genotyped using the TaqMan assay. Serum uromodulin was measured at last follow-up using ELISA. KI was defined by estimated glomerular filtration rate < 90 ml/min/1.73m2 and/or hypertension and/or proteinuria.

resultsOver a mean follow-up of 21.1years(range:18-33), 15 patients (26.8%) developed KI. Genotypes were TT (62.5%) and TC (37.5%). Higher sUMOD levels in early adulthood were linked to kidney length(KL) > 2SDS in early-life and absence of the C allele. Lower sUMOD levels were associated with KI and its components. Kaplan-Meier analysis showed 100% KI-free survival at 33years in patients with early KL > 2SDS. Survival dropped to 62.4% in those without early KL > 2SDS and wild-type genotype, and to 0% by 26years in C allele carriers (p = 0.001). The hazard ratio for KI in C allele carriers was 5.1(95%confidence interval:1.6-16.2;p = 0.006). Therefore, early-life kidney ultrasound, combined with rs4293393 genotyping might improve risk stratification for KI in patients with CSFK.

Indexed as

NephronsPolymorphism, Single NucleotideSolitary KidneyUromodulinAdolescentAdultChildChild, PreschoolFemaleGenotypeGlomerular Filtration RateHumansInfantInfant, NewbornMaleRisk FactorsUMOD protein, humanUromodulinKidney injuryrs4293393 T > C polymorphismSolitary kidneyUromodulin

Identifiers

PMID41390447
PMCPMC12817487

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the Socratic graph.