Results 41 to 50 of about 1,358,589 (334)

MHC Class II Presentation in Autoimmunity

open access: yesCells, 2023
Antigen presentation by major histocompatibility complex class II (MHC-II) molecules is crucial for eliciting an efficient immune response by CD4+ T cells and maintaining self-antigen tolerance.
Irina A. Ishina   +5 more
doaj   +1 more source

Conformational Plasticity of HLA-B27 Molecules Correlates Inversely With Efficiency of Negative T Cell Selection

open access: yesFrontiers in Immunology, 2020
The development of autoimmune disorders is incompletely understood. Inefficient thymic T cell selection against self-peptides presented by major histocompatibility antigens (HLA in humans) may contribute to the emergence of auto-reactive effector cells ...
Bernhard Loll   +4 more
doaj   +1 more source

Amphetamine and pseudoephedrine cross-tolerance measured by c-Fos protein expression in brains of chronically treated rats [PDF]

open access: yes, 2008
Background Pseudoephedrine is a drug commonly prescribed as a nasal decongestant and bronchodilator and is also freely available in cold remedies and medications.
Casalotti, Stefano O.   +3 more
core   +3 more sources

Interleukin-5 (IL-5) Therapy Prevents Allograft Rejection by Promoting CD4+CD25+ Ts2 Regulatory Cells That Are Antigen-Specific and Express IL-5 Receptor

open access: yesFrontiers in Immunology, 2021
CD4+CD25+Foxp3+T cell population is heterogenous and contains three major sub-groups. First, thymus derived T regulatory cells (tTreg) that are naïve/resting. Second, activated/memory Treg that are produced by activation of tTreg by antigen and cytokines.
Bruce M. Hall   +17 more
doaj   +1 more source

Mechanisms of central tolerance for B cells. [PDF]

open access: yesNat Rev Immunol, 2017
Immune tolerance hinders the potentially destructive responses of lymphocytes to host tissues. Tolerance is regulated at the stage of immature B cell development (central tolerance) by clonal deletion, involving apoptosis, and by receptor editing, which reprogrammes the specificity of B cells through secondary recombination of antibody genes.
Nemazee D.
europepmc   +4 more sources

Hypothalamic Vitamin D Improves Glucose Homeostasis and Reduces Weight [PDF]

open access: yes, 2016
Despite clear associations between vitamin D deficiency and obesity and/or type 2 diabetes, a causal relationship is not established. Vitamin D receptors (VDRs) are found within multiple tissues, including the brain.
Arble, Deanna M.   +9 more
core   +4 more sources

Renal neuroendocrine control of desiccation and cold tolerance by Drosophila suzukii [PDF]

open access: yes, 2017
Background: Neuropeptides are central to the regulation of physiological, and behavioural processes in insects, directly impacting cold and desiccation survival.
Al-Anzi   +63 more
core   +2 more sources

The RANKL-RANK Axis: A Bone to Thymus Round Trip

open access: yesFrontiers in Immunology, 2019
The identification of Receptor activator of nuclear factor kappa B ligand (RANKL) and its cognate receptor Receptor activator of nuclear factor kappa B (RANK) during a search for novel tumor necrosis factor receptor (TNFR) superfamily members has ...
Cristina Sobacchi   +5 more
doaj   +1 more source

Increased central artery stiffness in impaired glucose metabolism and type 2 diabetes - The Hoorn study [PDF]

open access: yes, 2003
Impaired glucose metabolism (IGM) and type 2 diabetes (DM-2) are associated with high cardiovascular disease risk. Increases in peripheral and central artery stiffness may represent pathophysiologic pathways through which glucose tolerance status leads ...
Bouter, L.M.   +9 more
core   +3 more sources

Design degrees of freedom and mechanisms for complexity [PDF]

open access: yes, 2002
We develop a discrete spectrum of percolation forest fire models characterized by increasing design degrees of freedom (DDOF’s). The DDOF’s are tuned to optimize the yield of trees after a single spark.
Carlson, J. M.   +2 more
core   +1 more source

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