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Distinct CD8 T-cell types Associated with COVID-19 Severity in Unvaccinated HLA-A2 Patients.
bioRxiv
January 2025
Aaron Diamond AIDS Research Center, Department of Medicine, Columbia University Vagelos College of Physicians and Surgeons, New York, NY 10032, USA.
Although emerging data have revealed the critical role of memory CD8 T cells in preventing and controlling SARS-CoV-2 infection, virus-specific CD8 T-cell responses against SARS-CoV-2 and its memory and innate-like subsets in unvaccinated COVID-19 patients with various disease manifestations in an HLA-restricted fashion remain to be understood. Here, we show the strong association of protective cellular immunity with mild COVID-19 and unique cell types against SARS-CoV-2 virus in an HLA-A2 restricted manner. ELISpot assays reveal that SARS-CoV-2-specific CD8 T-cell responses in mild COVID-19 patients are significantly higher than in severe patients, whereas neutralizing antibody responses against SARS-CoV-2 virus significantly correlate with disease severity.
View Article and Find Full Text PDFBackground: The number of individuals living alone with dementia is increasing throughout the world, and they have unique needs that are poorly understood. The aim of this integrative review was to understand the characteristics, needs, and perspectives of individuals living alone with dementia as well as the available community resources to guide future research and clinical practice.
Methods: Electronic (PubMed, CINAHL, and PsycINFO) and manual searches were utilized to identify articles using MeSH terms.
Clinical outcomes and biomechanics in bicruciate-retaining total knee arthroplasty.
J Exp Orthop
January 2025
Department of Orthopaedic Surgery, Faculty of Medicine The University of Tokyo Tokyo Japan.
Purpose: To clarify the influence of biomechanics on post-operative clinical outcomes in bicruciate-retaining total knee arthroplasty (BCR-TKA).
Methods: Severe medial osteoarthritis who underwent BCR-TKA were examined. Each patient was asked to perform a squat (weight-bearing [WB]) and active assisted knee flexion (non-WB [NWB]) under single fluoroscopy surveillance.
Compound Surfactant System with Superior Oil Displacement Performance: Balanced Synergistic Effects from Oil-Water and Oil-Solid Interfaces.
Langmuir
January 2025
Shandong Key Laboratory of Oilfield Chemistry, Department of Petroleum Engineering, China University of Petroleum (East China), Qingdao 266580, China.
The oil film formed by the adhesion of crude oil to the resin-asphalt adsorption layer is difficult to peel off due to the strong oil-solid interaction, which severely limits further improvements in oil recovery. Although conventional compound oil displacement systems can effectively reduce oil-water interfacial tension, facilitate oil droplet deformation, and alleviate the Jamin effect, they are insufficient in controlling the wettability of oleophilic rock surfaces. In this paper, sodium nonylphenol polyoxyethylene ether sulfate (NPES) and sodium lauric acid ethanolamine sulfonate (HLDEA) were compounded to construct an efficient oil displacement system that simultaneously achieves wettability control of lipophilic surfaces and ultralow oil-water interfacial tension.
View Article and Find Full Text PDFHuman Metapneumovirus: an emerging respiratory pathogen and the urgent need for improved Diagnostics, surveillance, and vaccine development.
Infect Dis (Lond)
January 2025
Department of Medicine, V.N. Karazin Kharkiv National University, Kharkiv, Ukraine.
Human Metapneumovirus (HMPV) is a re-emerging respiratory pathogen causing significant morbidity and mortality, particularly among young children, the elderly, and immunocompromised individuals. First identified in 2001, HMPV has since been recognised as a leading cause of acute respiratory tract infections (ARTIs) worldwide. Its transmission occurs through droplets, direct contact, and surface contamination, with crowded spaces and healthcare facilities serving as key environmental amplifiers.
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