{"database":"biostudies-literature","file_versions":[],"scores":null,"additional":{"omics_type":["Unknown"],"volume":["15(1)"],"submitter":["Winzey KD"],"pubmed_abstract":["Practice guidelines recommend withholding antimicrobial therapy (ABX) in delirious patients with suspected urinary tract infection (UTI) who do not endorse classic genitourinary symptoms, citing both a lack of a causal relationship between bacteriuria and delirium and benefit from ABX. In this study, we tested the hypothesis that UTI induces delirium-like phenotypes that are mitigated by ABX. Escherichia coli (CFT073) UTI was induced in female C57BL/6 J mice aged 4-5 months. Mice were randomized to receive one dose of ceftriaxone 600 mg/kg (n = 23) or saline (n = 21) one day after induction of UTI. Delirium-like behaviors were assessed using Open Field, Elevated Plus Maze, and Y-maze, while neurostructural changes were evaluated using neuronal cleaved caspase-3 (CC3) and interleukin-6 (IL-6) via immunohistochemistry. Plasma IL-6 was quantified using ELISA. Compared to vehicle-treated mice, ABX mice with UTI demonstrated: 1) decreased time in the periphery of the Open Field maze (p = 0.017), 2) decreased time in the closed arms of the Elevated Plus Maze (p = 0.013), and 3) increased spontaneous alternations in Y-maze (p = 0.015). These behavioral changes were accompanied by significantly lower frontal/hippocampal CC3 (p = 0.0038, p = 0.0003, respectively) and IL-6 (p = 0.015) levels in ABX- compared to vehicle-treated UTI mice. ABX significantly lowered plasma IL-6 compared to vehicle-treated UTI mice (p < 0.01). This study suggests a causal relationship between UTI and functional/neurostructural delirium-like phenotypes that are attenuated with ABX. These findings provide strong rationale for a randomized clinical trial to evaluate the role of ABX in patients with delirium as the isolated presumed sign of UTI."],"journal":["Translational psychiatry"],"pagination":["360"],"full_dataset_link":["https://www.ebi.ac.uk/biostudies/studies/S-EPMC12501002"],"repository":["biostudies-literature"],"pubmed_title":["Antimicrobial treatment ameliorates delirium-like phenotypes in a murine model of urinary tract infection."],"pmcid":["PMC12501002"],"pubmed_authors":["Bresee C","Schlick KH","Moreira D","Winzey KD","Islam TS","Tourtellotte WG","Vit JP","Lahiri S","Scott L","Sutterwala FS","Karumanchi SA"],"additional_accession":[]},"is_claimable":false,"name":"Antimicrobial treatment ameliorates delirium-like phenotypes in a murine model of urinary tract infection.","description":"Practice guidelines recommend withholding antimicrobial therapy (ABX) in delirious patients with suspected urinary tract infection (UTI) who do not endorse classic genitourinary symptoms, citing both a lack of a causal relationship between bacteriuria and delirium and benefit from ABX. In this study, we tested the hypothesis that UTI induces delirium-like phenotypes that are mitigated by ABX. Escherichia coli (CFT073) UTI was induced in female C57BL/6 J mice aged 4-5 months. Mice were randomized to receive one dose of ceftriaxone 600 mg/kg (n = 23) or saline (n = 21) one day after induction of UTI. Delirium-like behaviors were assessed using Open Field, Elevated Plus Maze, and Y-maze, while neurostructural changes were evaluated using neuronal cleaved caspase-3 (CC3) and interleukin-6 (IL-6) via immunohistochemistry. Plasma IL-6 was quantified using ELISA. Compared to vehicle-treated mice, ABX mice with UTI demonstrated: 1) decreased time in the periphery of the Open Field maze (p = 0.017), 2) decreased time in the closed arms of the Elevated Plus Maze (p = 0.013), and 3) increased spontaneous alternations in Y-maze (p = 0.015). These behavioral changes were accompanied by significantly lower frontal/hippocampal CC3 (p = 0.0038, p = 0.0003, respectively) and IL-6 (p = 0.015) levels in ABX- compared to vehicle-treated UTI mice. ABX significantly lowered plasma IL-6 compared to vehicle-treated UTI mice (p < 0.01). This study suggests a causal relationship between UTI and functional/neurostructural delirium-like phenotypes that are attenuated with ABX. These findings provide strong rationale for a randomized clinical trial to evaluate the role of ABX in patients with delirium as the isolated presumed sign of UTI.","dates":{"release":"2025-01-01T00:00:00Z","publication":"2025 Oct","modification":"2026-06-04T05:35:24.195Z","creation":"2026-05-05T03:13:18.405Z"},"accession":"S-EPMC12501002","cross_references":{"pubmed":["41053026"],"doi":["10.1038/s41398-025-03624-9"]}}