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Association of high complement and low immunoglobulins with the clinical symptoms of patients with fibromyalgia.
Biopsychosoc Med
January 2025
Department of Psychosomatic Medicine, Graduate School of Medical Sciences, Kyushu University, 3-1-1 Maidashi, Higashiku, Fukuoka, 812-8582, Japan.
Background: Fibromyalgia (FM) is a disease characterized by chronic widespread pain concomitant with various symptoms such as fatigue and anxiety. Although chronic inflammation has been implicated in the immunological abnormalities of FM, there are few human studies on complement and immunoglobulins. In this study, we investigated the immunological characteristics of FM patients and the association between their clinical symptoms and immunological indices, including complement and immunoglobulins.
View Article and Find Full Text PDFRed flags to suspect inborn errors of immunity in patients with autoimmune diseases.
Biomedica
December 2024
Grupo de Inmunología Celular y Molecular - InmuBo, Universidad El Bosque, Bogotá, D. C., Colombia; Reumatología, Escuela de Medicina, Universidad Militar Nueva Granada, Bogotá, D. C., Colombia; Grupo de Inmunología, Escuela de Medicina, Universidad Militar Nueva Granada, Bogotá, D. C., Colombia; Departamento de Reumatología e Inmunología, Hospital Militar Central, Bogotá, D. C., Colombia.
Inborn errors of immunity are monogenic disorders that predispose patients to immune dysregulation, autoimmunity, and infection. Some autoimmune diseases, such as autoimmune cytopenias, systemic lupus erythematosus, and inflammatory bowel diseases, are increasingly recognized as phenotypes of inborn errors of immunity. The objective of this article was to identify red flags or clinical/laboratory markers to suspect inborn errors of immunity in patients with autoimmune cytopenias, systemic lupus erythematosus, and inflammatory bowel diseases through a systematic literature review.
View Article and Find Full Text PDFA Rare Case of Autoimmune Enteropathy After Thymectomy.
Cureus
December 2024
Graduate Medical Education, Eisenhower Health, Rancho Mirage, USA.
Autoimmune enteropathy (AIE) is a rare cause of chronic diarrhea associated with autoantibodies and susceptibility to other autoimmune diseases, such as rheumatoid arthritis, diabetes, autoimmune hemolytic anemia, and atopic dermatitis. While it is more common in children, the prevalence of AIE in adults is increasing. Due to the nonspecific nature of its presenting symptoms and the lack of consistent findings, AIE can be challenging to diagnose.
View Article and Find Full Text PDFPediatric autoimmune neuropsychiatric disorders associated with streptococcal infections and gut microbiota composition: what do we know?
Front Nutr
January 2025
Department of Pediatrics, Vittore Buzzi Children's Hospital, University of Milan, Milan, Italy.
Post-streptococcal autoimmune neuropsychiatric disorders (PANDAS) are a group of pathological condition characterized by sudden-onset obsessive-compulsive and tic disorders following beta-hemolytic Streptococcus group A (GAS) infection, hypothesized to be caused by autoimmune mechanisms targeting the basal ganglia. Scant literature is available regarding the microbiota composition in children with PANDAS, however few studies support the hypothesis that streptococcal infections may alter gut microbiota composition in these patients, leading to chronic inflammation that may impact the brain function and behavior. Notable changes include reduced microbial diversity and shifts in bacterial populations, which affect metabolic functions crucial for neuroinflammation.
View Article and Find Full Text PDFProthrombin prevents fatal T cell-dependent anemia during chronic virus infection of mice.
JCI Insight
January 2025
Division of Hematology, Cincinnati Children's Hospital Medical Center, Cincinnati, United States of America.
Thrombin promotes the proliferation and function of CD8+ T cells. To test if thrombin prevents exhaustion and sustains antiviral T cell activity during chronic viral infection, we depleted the thrombin-precursor prothrombin to 10% of normal levels in mice prior to infection with the clone 13 strain of lymphocytic choriomeningitis virus. Unexpectedly, prothrombin insufficiency resulted in 100% mortality after infection that was prevented by depletion of CD8+ T cells, suggesting that reduced availability of prothrombin enhances virus-induced immunopathology.
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