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Vitamin D and COVID-19: comparative analysis with other respiratory infections and impact of comorbidities.
Germs
September 2024
Pharm, PhD, Faculty of Pharmacy, Carol Davila University of Medicine and Pharmacy, No. 6 Traian Vuia street, Bucharest, 020956, Romania.
Introduction: The COVID-19 pandemic has promoted an intensive investigation into the pathophysiological mechanisms of SARS-CoV-2 infection, risk factors, and its impact on disease severity. Vitamin D has generated significant attention for its potential role in viral prevention and immune defense due to its pleiotropic functions, including immunomodulation and antimicrobial effects. This study aimed to assess serum 25(OH)D3 levels in patients with COVID-19 compared to those with other viral respiratory infections and to evaluate associations of vitamin D levels with symptomatology, clinical characteristics, presence of comorbidities and laboratory investigation.
View Article and Find Full Text PDFAnti-CD4 monoclonal antibody prevents chronic graft-versus-host disease in mice by inducing immune tolerance of CD8 T cells and alleviating thymus injury.
Front Immunol
December 2024
Department of Hematology, Changhai Hospital, The Second Military Medical University, Shanghai, China.
Background: Chronic graft-versus-host disease (cGVHD) manifests with characteristics of autoimmune disease with organs attacked by pathogenic helper T cells. Recent studies have highlighted the role of T cells in cGVHD pathogenesis. Due to limited understanding of underlying mechanisms, preventing cGVHD after allogenic hematopoietic cell transplantation (HCT) has become a major challenge.
View Article and Find Full Text PDFPGM3 insufficiency: a glycosylation disorder causing a notable T cell defect.
Front Immunol
December 2024
Institute for Immunodeficiency, Center for Chronic Immunodeficiency, University Medical Center Freiburg, Freiburg, Germany.
Background: Hypomorphic mutations in the () gene cause a glycosylation disorder that leads to immunodeficiency. It is often associated with recurrent infections and atopy. The exact etiology of this condition remains unclear.
View Article and Find Full Text PDFThe Association of Mitochondrial tRNA G5783A Mutation with Major Depressive Disorder in Two Han Chinese Families.
Neuropsychiatr Dis Treat
January 2025
Department of Psychiatry, Suzhou Guangji Hospital, Suzhou, People's Republic of China.
Objective: In this study, we examined the genetic, medical, and molecular traits of two Han Chinese families with the tRNA G5783A mutation to investigate the relationship between mitochondrial DNA (mtDNA) mutations and major depressive disorder (MDD).
Methods: Clinical data and comprehensive mitochondrial genomes were collected from the two families. Variants were assessed for evolutionary conservation, allelic frequencies, and their structural and functional impacts.
Periodontitis in Patients Undergoing Coronary Angiography: A Cross-Sectional Study.
Cureus
December 2024
Department of Invasive Cardiology, University Hospital "St. Marina", Varna, BGR.
Background Cardiovascular diseases (CVDs) are the leading cause of mortality worldwide, with coronary artery disease (CAD) being the primary contributor. Periodontitis, a common non-communicable disease, has been associated with an increased risk of CVD. Previous studies have suggested a link between the severity of periodontitis and the degree of coronary artery obstruction.
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