Results 61 to 70 of about 594,874 (263)

CD4 Phosphorylation Partially Reverses Nef Down-Regulation of CD4 [PDF]

The Journal of Immunology, 2004
Abstract HIV Nef down-regulates CD4 from the cell surface in the absence of CD4 phosphorylation, whereas PMA down-regulates CD4 through a phosphorylation-dependent pathway. In this study we show that the down-regulation of CD4 in human Jurkat T cells expressing Nef was nearly complete (∼95%), whereas that induced by PMA was partial (∼40%)
Yong-Jiu, Jin, Xiaoping, Zhang, J Gildade, Boursiquot, Steven J, Burakoff   +3 more
openaire   +2 more sources

Correlations Between Anti-SARS-CoV-2 Titers, CD4+ T-Cell Counts, and COVID-19 Severity

Biology, Medicine & Natural Product Chemistry
Coronavirus disease 2019 (COVID-19) presents with diverse symptoms ranging from mild to severe. Patients with severe COVID-19 can show impaired humoral and cellular immunity and excessive pro-inflammatory cytokine production.
Edwin Hadinata, Eko Surachmanto, Paul N. Harijanto   +2 more
doaj   +1 more source

Relationship between CD4 count and CD4% in HIV-infected people [PDF]

International Journal of Epidemiology, 1997
To describe the relationship between absolute CD4 count and CD4%, and the influence on this of gender, risk group, age, a diagnosis of AIDS, use of zidovudine (ZDV) therapy and PCP prophylaxis.9203 paired serial measurements of CD4 count and CD4% on 1017 initially AIDS-free and ZDV-naive HIV positive patients from a London-based cohort were available ...
L M, Yu, P J, Easterbrook, T, Marshall
openaire   +2 more sources

Chronobiology of Cancer: How Aging Fuels Oncogenesis at the Molecular Level

Aging and Cancer, EarlyView.
This graphical abstract illustrates the key biological pathways linking aging with cancer development and progression. In the upper left, cumulative exposure to ultraviolet radiation, toxins, and reactive oxygen species (ROS) causes DNA damage and genomic instability, whereas age‐related decline in repair mechanisms, such as ATM/ATR, BER, and NER ...
Anu Singh, Aroonima Misra, Sufian Zaheer
wiley   +1 more source

The impact of chronic stress associated with active armed conflict in Ukraine on the state of immunity in patients with autoimmune thyroiditis

Mìžnarodnij Endokrinologìčnij Žurnal
Background. In the context of prolonged war-related stress in Ukraine, the prevalence of psychoemotional disorders has markedly increased, significantly influencing the course of autoimmune diseases.
Yu.I. Karachentsev, I.V. Gopkalova, V.N. Dubovik, O.A. Goncharova, E.M. Ashurov, L.V. Gerasimenko, V.А. Makedonska   +6 more
doaj   +1 more source

Understanding and Mitigating the Risk of Accelerated Biological Aging in Survivors of Cancer: A Scoping Review

Aging and Cancer, EarlyView.
Cancer treatment is associated with measurable acceleration of biological aging across epigenetic, telomere, senescence, and immune biomarkers. However, biomarker validation and interventional strategies remain limited, especially in hematologic malignancies, underscoring the need for standardized multi‐omic aging assessments and adequately powered ...
Moataz Ellithi, Emily Herdman, Danielle Westmark, Vijaya R. Bhatt   +3 more
wiley   +1 more source

Influenza Vaccination Responses in Disabled Stroke Patients: A Single‐Center Prospective Observational Study

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective This study aimed to investigate the immunological response to influenza vaccination, the incidence and severity of influenza infection, and the side effects of the vaccination in patients with ischemic stroke. Methods This prospective observational study was conducted between 2023 and 2024 at Ramathibodi Hospital.
Achiraya Pakngao, Sureerat Suwatcharangoon, Pintip Ngamjanyapron, Kobporn Boonnak, Thanitta Suangtamai, Porpon Rotjanapan   +5 more
wiley   +1 more source

Balance of CD4⁺IFNγ+ and CD4⁺CD25^hiT cells as early predictor of a 3-month outcome in ischemic stroke patients

Медицинская иммунология, 2020
Early prediction for ischemic stroke (IS) outcome is a major challenge since it may help to optimize treatment program and  to make  it more  personalized. Since  T cells with  regulatory activity  are involved  in different  pathophysiological processes 
S. A. Morozov, M. A. Tikhonova, N. V. Pronkina, A. A. Shtobbe, O. Yu. Leplina, E. Ya. Shevela, A. A. Ostanin, E. R. Chernykh   +7 more
doaj   +1 more source

Long‐Term Neurologic Exam Findings in People Diagnosed and Treated During Acute HIV Infection

Annals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Objective Evaluate clinical and laboratory correlates of abnormal neurologic exam findings after acute HIV infection (AHI). Methods Participants from the RV254/SEARCH 010 cohort in Bangkok underwent standardized neurologic examinations at Weeks 0 (AHI), 12, 96, and 288 following antiretroviral therapy (ART).
Kathryn B. Holroyd, Tyler Hamby, Carlo Sacdalan, Somchai Sriplienchan, Pathariya Promensa, Luxenaree Poonpitak, Netsiri Dumrongpisutikul, Eugène Kroon, Sandhya Vasan, Robert Paul, Ferron O'Campo, Lydie Trautmann, Phillip Chan, Serena Spudich, on behalf of the RV254/SEARCH 010 Study Team, Julie Ake, Sandhya Vasan, Lydie Trautmann, Merlin Robb, Trevor Crowell, Donn Colby, Diane Bolton, Shelly Krebs, Leigh Ann Eller, Morgane Rolland, Rasmi Thomas, Dominic Paquin Proulx, Suteeraporn Pinyakorn, Tyler Hamby, Mark de Souza, Ellen Turk, Amber Moodley, Gerald Quarles, Jintanat Ananworanich, Denise Hsu, Victoria Polonis, Nelson Michael, Sheila Peel, COL Eric Garges, Alexandra Schuetz, Siriwat Akapirat, Bessara Nantapinit, Pornsuk Visudhiphan, Saowanit Getchalarat, Nampueng Churikanont, Sangsulee Thamakaison, Somchai Sriplienchan, Carlo Sacdalan, Pathariya Promsena, Luxe‐naree Poonpitak, Eugene Kroon, Nitiya Chomchey, Jintana Intasan, Varaporn Pothipala, Ferron Ocampo, Nittaya Phanuphak, Nipat Teeratakulpisan, Yuwaree Pichitchok, Anchalee Avihingsanon, Opass Putcharoen, Kiat Ruxrungtham, Thanyawee Puthanakit, Sopark Manasnayakorn, Phandee Watanaboonyongcharoen, Rungsun Rerknimitr, Irini Sereti, Daniel Douek, Eli Bortiz, Frank Maldarelli, Mary Kearney, Serena Spudich, Phillip Chan, Lishomwa Ndhlovu, Guinevere Li, Michael Corley, Victor Valcour, Peter Hunt, Jacob Estes, Afam Okoye, Jeff Lifson, Claire Deleage, Nicolas Chomont, Andres Finzi, Lyle McKinnon, Henrik Zetterberg, Robert Siliciano, Robert Paul, Julie Mannarino, Jonathan Li, John Mellors, Josh Cytkor, Dan Barouch, Michael Seaman, Boris Juelg, Alex Shalek, Timothy Schacker, Ashley Haase, Mario Stevenson, Wenjun Li, Arthur Kim, Sharon Lewin, Adam Carrico, Susana Valente, Fred Hutchinson, Josh Schiffer, Guido Ferrari, Beau Ances, Alberto Bosque, Katharine Bar, Killian Pohl, David Ho, Yaoxing Huang, Michael Busch, Mohamed Abdel‐Mohsen, Johanna Gostner, Brian Agan, Fatah Kashanchi, Greg Laird, Kathryn Holroyd   +118 more
wiley   +1 more source

Preparation and characterization of monoclonal antibodies recognizing two CD4 isotypes of Microminipigs.

PLoS ONE, 2020
Cluster of differentiation 4 (CD4) molecule expressed on the leukocytes is known to function as a co-receptor for class II major histocompatibility complex (MHC) binding to T cell receptor (TCR) on helper T cells. We previously identified two CD4 alleles
Shino Ohshima, Tatsuya Matsubara, Asuka Miyamoto, Atsuko Shigenari, Noriaki Imaeda, Masaki Takasu, Masafumi Tanaka, Takashi Shiina, Shingo Suzuki, Noriaki Hirayama, Hitoshi Kitagawa, Jerzy K Kulski, Asako Ando, Yoshie Kametani   +13 more
doaj   +1 more source