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Basic Science and Pathogenesis.
Alzheimers Dement
December 2024
University of Massachusetts Chan Medical School, Worcester, MA, USA.
Background: In Alzheimer's disease (AD), changes in intestinal microbiota and systemic inflammation are concomitant with neuroinflammation and cognitive decline. This has led to the theory of microbial communities or infections as being causative in the development of neuroinflammation and immunosenescence seen in AD. Our research has demonstrated a decreased taxonomic diversity and an increased abundance of pathobionts in the gut of AD patients (Haran, mBio 2019), which is sufficient to promote amyloid and tau deposition in a mouse model (Chen, Gut 2023).
View Article and Find Full Text PDFOptimizing Management of Febrile Young Infants Without Serum Procalcitonin.
Pediatrics
January 2025
Departments of Pediatrics and Emergency Medicine, George Washington University School of Medicine and Health Sciences, Washington, DC.
Background: Febrile young infants are at risk of invasive bacterial infections (IBIs; bacteremia or bacterial meningitis). American Academy of Pediatrics (AAP) guidelines recommend that when procalcitonin testing is unavailable, C-reactive protein (CRP), absolute neutrophil count (ANC) and temperature should be used to identify low-risk infants. We sought to determine the optimal combination of these inflammatory markers to predict IBI when procalcitonin is unavailable.
View Article and Find Full Text PDFCase report: A rare case of bacteremia in an immunocompetent psychiatric patient: exploring the links between mental health and infectious diseases.
Front Immunol
January 2025
Department of Hepatobiliary Surgery, Panzhihua Central Hospital, Sichuan, China.
This study aims to explore the pathogenic potential of as a rare pathogen in immunocompetent individuals and to analyze how mental health status may influence susceptibility to infection. We report a case of bacteremia in a 31-year-old immunocompetent female who developed infection during an episode of severe depression. Although the patient exhibited self-harm tendencies, a thorough physical examination did not reveal any external wounds or signs of injury.
View Article and Find Full Text PDFPathophysiology and clinical outcomes of pancytopenia in disseminated histoplasmosis: a scoping review.
Infection
January 2025
Department of Medical Microbiology and Immunology, Faculty of Medicine, Gulu University, Gulu, Uganda.
Purpose: Pancytopenia in the setting of disseminated histoplasmosis is sparsely described in the literature. We investigated the underlying mechanisms of pancytopenia in disseminated histoplasmosis and highlighted clinical outcomes.
Methods: We conducted a scoping review of cases and series on disseminated histoplasmosis presenting with pancytopenia published between 2001 and 2024.
Rapid quantitative PCR on tongue swabs for pulmonary tuberculosis in adults: a prospective multicentre study.
Eur Respir J
January 2025
Department of Bacteriology and Immunology, Beijing Chest Hospital, Capital Medical University/Beijing Tuberculosis and Thoracic Tumor Research Institute, Beijing, China
Background: Tuberculosis (TB) remains a major cause of infectious disease mortality globally, with significant underdiagnosis perpetuating transmission. Tongue swab analysis has emerged as a promising non-invasive method for pulmonary TB diagnosis. This study evaluates the diagnostic accuracy of the TB-EASY quantitative PCR (qPCR) assay using tongue swab specimens.
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