and are important causes of septic arthritis in patients with hypogammaglobulinemia. The diagnosis can be challenging, leading to prolonged illness and increased morbidity, and mortality. This is driven by the complex growth media requirements of species and the difficulty in identifying the organisms on routine culture media. Herein, we present a case of native joint polyarticular septic arthritis and vertebral infection secondary to disseminated in a patient maintained on rituximab. The diagnosis was established through a positive species-specific polymerase chain reaction (PCR) after a meticulous workup including synovial fluid biopsy, cultures and broad-range bacterial PCR returned negative. Septic arthritis caused by species should be considered in the differential diagnosis especially in immunocompromised patients with hypogammaglobulinemia, even if the initial microbiological workup is non-revealing. Delayed diagnosis and treatment are associated with increased morbidity.
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http://dx.doi.org/10.1016/j.idcr.2023.e01744 | DOI Listing |
Front Immunol
January 2025
Department of Odontology, Section for Molecular Periodontology, Umeå University, Umeå, Sweden.
Introduction: Periodontitis is associated with rheumatoid arthritis (RA). One hypothesis posits that this connection arises from the formation of autoantibodies against citrullinated proteins (ACPA) in inflamed gums, possibly triggered by . We previously demonstrated an increased antibody response to arginine gingipains (anti-Rgp IgG), not only in individuals with severe periodontitis compared to controls, but in RA versus controls, with an association to ACPA.
View Article and Find Full Text PDFRev Neurol (Paris)
January 2025
Clinical Neuroscience Centre, CIC_P1414 Inserm, University Hospital, Rennes, France. Electronic address:
Cytokine Growth Factor Rev
January 2025
MCW Cancer Center and Genomic Sciences and Precision Medicine Center, Medical College of Wisconsin, Milwaukee, WI, USA; WIN Consortium, Paris, France; University of Nebraska, Lincoln, NE, USA. Electronic address:
IL-17A, referred to as IL-17, is the founding member of a family of pro-inflammatory cytokines, including IL-17B, IL-17C, IL-17D, IL-17E (or IL-25), and IL-17F, which act via receptors IL-17RA to IL-17RE, and elicit potent cellular responses that impact diverse diseases. IL-17's interactions with various cytokines include forming a heterodimer with IL-17F and being stimulated by IL-23's activation of Th17 cells, which can lead to inflammation and autoimmunity. IL-17 is implicated in infectious diseases and inflammatory disorders such as rheumatoid arthritis and psoriasis, promoting neutrophil recruitment and anti-bacterial immunity, but potentially exacerbating fungal and viral infections, revealing its dual role as protective and pathologic.
View Article and Find Full Text PDFClin Immunol
January 2025
National Center for Clinical Laboratories, Institute of Geriatric Medicine, Chinese Academy of Medical Sciences, Beijing Hospital/ National Center of Gerontology, China; Department of Rheumatology, Beijing Hospital, National Center of Gerontology, Institute of Geriatric Medicine, Clinical Immunology Center, Chinese Academy of Medical Sciences and Peking Union Medical College, Beijing, China. Electronic address:
Object: Patients with rheumatoid arthritis-associated interstitial lung disease (RA-ILD) have a high risk of serious infection, in particular severe pneumonia. This study aimed to investigate the transcriptional landscape, lower respiratory tract (LRT) microbiome and metabolomic profiles in the lung of RA-ILD patients with pneumonia.
Method: A total of 10 RA-ILD with pneumonia were enrolled in this study.
Ann Rheum Dis
January 2025
Rheumatology Center, Toulouse University Hospital, Toulouse, France.
Objectives: To compare two strategies-a hydrocortisone replacement strategy and a prednisone tapering strategy-for their success in glucocorticoid discontinuation in patients with rheumatoid arthritis (RA) with low disease activity (LDA).
Methods: The Strategies for glucocorticoid TApering in Rheumatoid arthritis (STAR) study was a double- blind, double-placebo randomised controlled trial including patients with RA receiving a stable dose of glucocorticoid 5 mg/day for ≥3 months and were in LDA for ≥3 months. Patients were randomly assigned in a 1:1 ratio to either replace prednisone with 20 mg/day of hydrocortisone for 3 months, then reduce to 10 mg/day for 3 months before discontinuation or to taper prednisone by 1 mg/day every month until complete discontinuation, contingent on maintaining LDA.
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