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Increases in the susceptibility of human endometrial CD4 T cells to HIV-1 infection post-menopause are not dependent on greater viral receptor expression frequency.
Front Immunol
January 2025
Department of Microbiology and Immunology, Geisel School of Medicine at Dartmouth, Lebanon, NH, United States.
Epidemiological evidence suggests that post-menopausal women are more susceptible to HIV infection following sexual intercourse than are younger cohorts for reasons that remain unclear. Here, we evaluated how menopause-associated changes in CD4 T cell numbers and subsets as well as HIV coreceptor expression, particularly CCR5, in the endometrium (EM), endocervix (CX), and ectocervix (ECX) may alter HIV infection susceptibility. Using a tissue-specific mixed cell infection model, we demonstrate that while no changes in CD14 macrophage infection susceptibility were observed, CD4 T cell HIV-1 infection frequency increases following menopause in the EM, but not CX nor ECX.
View Article and Find Full Text PDFAlcohol drinking leads to sex-dependent differentiation of T cells.
Eur J Trauma Emerg Surg
January 2025
Department of Trauma Surgery and Orthopedics, Goethe University, University Hospital, Frankfurt, Germany.
Objective: Global per capita alcohol consumption is increasing, posing significant socioeconomic and medical challenges also due to alcohol-related traumatic injuries but also its biological effects. Trauma as a leading cause of death in young adults, is often associated with an increased risk of complications, such as sepsis and multiple organ failure, due to immunological imbalances. Regulatory T cells play a crucial role in maintaining immune homeostasis by regulating the inflammatory response.
View Article and Find Full Text PDFNeutrophil-to-lymphocyte ratio and short-term mortality in patients having anti-MDA5-positive dermatomyositis with interstitial lung disease: a retrospective study.
BMC Pulm Med
January 2025
Department of Key Laboratory of Ningxia Stem Cell and Regenerative Medicine, Institute of Medical Sciences, Department of Pulmonary and Critical Care Medicine, General Hospital of Ningxia Medical University, Yinchuan, Ningxia, 750004, China.
Background: In this study, we aimed to explore the association between baseline and early changes in the neutrophil-to-lymphocyte ratio (NLR) and the 30-day mortality rate in patients having anti-melanoma differentiation-associated gene 5 (MDA5)-positive dermatomyositis with interstitial lung disease (DM-ILD).
Methods: Overall, 263 patients with anti-MDA5 DM-ILD from four centers in China were analyzed. Multivariate logistic regression analysis was used to evaluate the impact of baseline NLR on the 30-day mortality rate in patients with anti-MDA5-positive DM-ILD.
Characterization of Strains from Tonsillopharyngitis and Scarlet Fever Resurgence, 2023-FIRST Detection of M1 in Bulgaria.
Microorganisms
January 2025
Medical Faculty, Sofia University "St. Kliment Ohridski", 1407 Sofia, Bulgaria.
Recently a resurgence of has arisen, with concerns around the highly virulent M1 lineage. Our aim was to characterize , the immune responses it causes, and to determine the presence of the M1 lineage in Sofia, Bulgaria. In our study, the infections were confirmed by culture testing or rapid antigen test.
View Article and Find Full Text PDFImmunogenicity of an in-silico designed multi-epitope DNA vaccine encoding ROP21 and ROP29 of Toxoplasma gondii against both acute and chronic toxoplasmosis in BALB/c mice.
Microb Pathog
January 2025
Tropical Projects, Hitchin, United Kingdom. Electronic address:
Background: Toxoplasma infections are highly prevalent worldwide and can cause serious complications in immunocompromised individuals and lead to congenital infections in neonates. Despite ongoing efforts to develop T. gondii vaccines, none have been developed.
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