Results 61 to 70 of about 2,264,666 (258)

Prevalence of Group A Streptococcal Carriage Rate in Asymptomatic Children [PDF]

open access: yesNational Journal of Laboratory Medicine, 2019
Introduction: Streptococcus pyogenes is a Gram positive cocci causing respiratory infections commonly in children. Throat carriers are children in whom the organism is isolated from throat swab specimens in the absence of symptoms.
Krishnarao Arthi, S Geetha Banu
doaj   +1 more source

Computational model for tumor response to adoptive cell transfer therapy [PDF]

open access: yesarXiv, 2022
One of the barriers to the development of effective adoptive cell transfer therapies (ACT), specifically for genetically engineered T-cell receptors (TCRs), and chimeric antigen receptor (CAR) T-cells, is target antigen heterogeneity. It is thought that intratumor heterogeneity is one of the leading determinants of therapeutic resistance and treatment ...
arxiv  

Avoiding False-Positive SARS-CoV-2 Rapid Antigen Test Results with Point-of-Care Molecular Testing on Residual Test Buffer

open access: yesMicrobiology Spectrum, 2022
Antigen-based rapid diagnostic tests (Ag-RDTs) have been widely used for the detection of SARS-CoV-2 during the coronavirus disease 2019 (COVID-19) pandemic.
Jason J. LeBlanc   +7 more
doaj   +1 more source

Sequence-Based Nanobody-Antigen Binding Prediction [PDF]

open access: yesarXiv, 2023
Nanobodies (Nb) are monomeric heavy-chain fragments derived from heavy-chain only antibodies naturally found in Camelids and Sharks. Their considerably small size (~3-4 nm; 13 kDa) and favorable biophysical properties make them attractive targets for recombinant production.
arxiv  

Active tuning of synaptic patterns enhances immune discrimination [PDF]

open access: yesPhys. Rev. Lett. 121, 238101 (2018), 2018
Immune cells learn about their antigenic targets using tactile sense: during recognition, a highly organized yet dynamic motif, named immunological synapse, forms between immune cells and antigen-presenting cells (APCs). Via synapses, immune cells selectively extract recognized antigen from APCs by applying mechanical pulling forces generated by the ...
arxiv   +1 more source

Genomic and panproteomic analysis of the development of infant immune responses to antigenically-diverse pneumococci

open access: yesNature Communications
Streptococcus pneumoniae (pneumococcus) is a nasopharyngeal commensal and respiratory pathogen. This study characterises the immunoglobulin G (IgG) repertoire recognising pneumococci from birth to 24 months old (mo) in a prospectively-sampled cohort of ...
Nicholas J. Croucher   +11 more
doaj   +1 more source

Affinity Discrimination in B cells in Response to Membrane Antigen Requires Kinetic Proofreading [PDF]

open access: yesarXiv, 2010
B cells signaling in response to antigen is proportional to antigen affinity, a process known as affinity discrimination. Recent research suggests that B cells can acquire antigen in membrane-bound form on the surface of antigen-presenting cells (APCs), with signaling being initiated within a few seconds of B cell/APC contact.
arxiv  

Human lymphoma mutations reveal CARD11 as the switch between self-antigen-induced B cell death or proliferation and autoantibody production [PDF]

open access: yes, 2016
Self-tolerance and immunity are actively acquired in parallel through a poorly understood ability of antigen receptors to switch between signaling death or proliferation of antigenbinding lymphocytes in different contexts.
Domaschenz, Heather   +8 more
core   +1 more source

Adsorption of organochlorinated pesticides: Adsorption kinetic and adsorption isotherm study

open access: yesResults in Engineering, 2023
Adsorption of organochlorine pesticides (OCPs) on 4 contrasted activated carbons (ACs) and biochars (BCs) and 5 different basic substances of soil organic matter (SOM) in aqueous media was investigated using adsorption kinetic and isotherm study.
Farida Amutova   +8 more
doaj  

Identification of Novel Serodiagnostic Signatures of Typhoid Fever Using a Salmonella Proteome Array

open access: yesFrontiers in Microbiology, 2017
Current diagnostic tests for typhoid fever, the disease caused by Salmonella Typhi, are poor. We aimed to identify serodiagnostic signatures of typhoid fever by assessing microarray signals to 4,445 S.
Thomas C. Darton   +23 more
doaj   +1 more source

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