Results 71 to 80 of about 1,199,934 (306)

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

open access: yesAging 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

Studies on in vitro human T cell reactivity to antigens of mycobacterium tuberculosis [PDF]

open access: yes, 2010
Studies on Mycobacterium tuberculosis (MTB) antigens are important to improve immunodiagnostics and vaccine efficacy. A novel genome based strategy for antigen discovery is to relate what is highly expressed by bacilli in vivo or in vitro, to what is ...
Gideon, Hannah Priyadarshini
core   +1 more source

Human Pegivirus Encephalitis With Brain Detection and Response to Sofosbuvir Ledipasvir

open access: yesAnnals of Clinical and Translational Neurology, EarlyView.
ABSTRACT Human pegivirus (HPgV‐1) has been associated with severe encephalomyelitis in immunocompromised patients. Its neurological spectrum remains poorly defined. We report a slowly progressive encephalitis in a person living with well‐controlled HIV, characterized by white matter abnormalities and inflammatory cerebrospinal fluid (CSF). HPgV RNA was
Antoine Moulignier   +3 more
wiley   +1 more source

Outer membrane vesicles (OMVs) and their therapeutic potential as anti-infectious agents

open access: yesNano Trends
Outer membrane vesicles (OMVs) derived from Gram-negative bacteria have emerged as promising therapeutic agents for combating infectious diseases. These small, spherical structures carry diverse cargo molecules, including virulence factors, antigens, and
Mariana Ottaiano Gonçalves   +4 more
doaj   +1 more source

Salmonella modulates B cell biology to evade CD8+ T cell-mediated immune responses

open access: yesFrontiers in Immunology, 2014
Although B cells and antibodies are the central effectors of humoral immunity, B cells can also produce and secrete cytokines and present antigen to helper T cells.
Marcela eLopez-Medina   +4 more
doaj   +1 more source

Mycobacterial antigens in pleural fluid mononuclear cells to diagnose pleural tuberculosis in HIV co-infected patients

open access: yesBMC Infectious Diseases, 2020
Background Extra pulmonary manifestation of tuberculosis (TB) accounts for approximately one-half of TB cases in HIV-infected individuals with pleural TB as the second most common location. Even though mycobacteria are cleared, mycobacterial antigens may
Tehmina Mustafa   +5 more
doaj   +1 more source

Volatile Relay Biosensing and Mobile Phone Imaging for Detection of Influenza Virus

open access: yesAdvanced Functional Materials, EarlyView.
Detection of volatile organic compounds is performed via a coupled enzymatic assay with mobile phone detection of the signal. Specific application demonstrated herein is the detection of influenza virus, across multiple levels of biological complexity, up to patient‐derived samples.
Dante G. Andersen   +7 more
wiley   +1 more source

Bacterial-epithelial contact is a key determinant of host innate immune responses to enteropathogenic and enteroaggregative escherichia coli [PDF]

open access: yes, 2011
Background: Enteropathogenic (EPEC) and Enteroaggregative (EAEC) E. coli have similar, but distinct clinical symptoms and modes of pathogenesis. Nevertheless when they infect the gastrointestinal tract, it is thought that their flagellin causes IL-8 ...
Nigel J Klein   +27 more
core   +1 more source

Microfluidic Nano‐Assembly of Red‐Blood‐Cell (RBC) Lipids and Components for Engineering Extracellular Vesicles

open access: yesAdvanced Healthcare Materials, EarlyView.
Engineered red blood cell‐derived extracellular vesicles (eRBCEVs) are synthesized via controlled microfluidic assembly from native RBC lipids, enabling tunable encapsulation of proteins, nucleic acids, nanoparticles, and viral vectors. The platform demonstrates reproducible nanoscale architecture, preserved membrane composition, and functional cargo ...
Chiranth K. Nagaraj   +23 more
wiley   +1 more source

Naturally Acquired Human Immunity to Pneumococcus Is Dependent on Antibody to Protein Antigens.

open access: yesPLoS Pathogens, 2017
Naturally acquired immunity against invasive pneumococcal disease (IPD) is thought to be dependent on anti-capsular antibody. However nasopharyngeal colonisation by Streptococcus pneumoniae also induces antibody to protein antigens that could be ...
Robert Wilson   +11 more
doaj   +1 more source

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