Results 11 to 20 of about 1,276,228 (308)

CD4+ T cell exhaustion revealed by high PD-1 and LAG-3 expression and the loss of helper T cell function in chronic hepatitis B

open access: yesBMC Immunology, 2019
Background Immune inhibitory receptors play an important role in chronic infections. However, little is known about their role in hepatitis B virus (HBV) infection.
Yuejiao Dong   +6 more
doaj   +1 more source

Streptococcus mutans adherence to conventional and self-ligating brackets: an in vitro study

open access: yesDental Press Journal of Orthodontics, 2021
Introduction: Although self-ligating brackets presumably provide better hygiene conditions, no consensus has been reached so far. Objective: Therefore, the objective of this study was to evaluate, in an in vitro experimental design, the adherence of ...
Murilo Fernando Neuppmann FERES   +6 more
doaj   +1 more source

Protoscolicidal Effects of the Garlic Chloroformic Extract on the Protoscolices of Hydatid Cyst at a Short Exposure Time, up to Five Minutes [PDF]

open access: yesIranian Journal of Medical Sciences, 2019
Background: The treatment of choice for hydatidosis as an important zoonotic disease is surgery. Different agents are injected into the cyst to prevent secondary hydatidosis.
Zahra Barzin   +2 more
doaj   +1 more source

Chickpea Hybridization Using In Vitro Techniques [PDF]

open access: yes, 2010
Tissue culture techniques play an important role in the utilization of wild Cicer species for the improvement- of cultivated chickpea. Utilization of wild Cicer species has become essential as a series of evolutionary bottlenecks have narrowed the genetic base of chickpea, thus making it susceptible to a range of diseases and pests.
Mallikarjuna, N, Muehlbauer, F J
openaire   +3 more sources

Endogenous endophthalmitis caused by a multidrug-resistant hypervirulent Klebsiella pneumoniae strain belonging to a novel single locus variant of ST23: first case report in China

open access: yesBMC Infectious Diseases, 2018
Background Endogenous endophthalmitis caused by hypervirulent Klebsiella pneumoniae (HVKP) is an emerging infectious disease commonly with a devastating visual outcome. Most HVKP strains display a wild-type susceptibility profile to antibiotics. However,
Min Xu   +6 more
doaj   +1 more source

Prevalence and genetic diversity of human diarrheagenic Escherichia coli isolates by multilocus sequence typing

open access: yesInternational Journal of Infectious Diseases, 2018
Background: The population structure of human diarrheagenic Escherichia coli (DEC) isolates derived from worldwide collections remains undefined. Methods: A total of 1196 clinical isolates were obtained from a multilocus sequence typing (MLST) database ...
Fei Yu   +7 more
doaj   +1 more source

Phenotypes of peripheral CD4+ T helper cell subsets in pregnant women with HBeAg-negative chronic asymptomatic HBV carriers

open access: yesFrontiers in Cellular and Infection Microbiology, 2023
BackgroundChronic hepatitis B virus (HBV) infection is a major public health problem worldwide, and mother-to-child transmission is the key mode of HBV infection.
Guofang Feng   +9 more
doaj   +1 more source

Intramachine and intermachine variability in transesophageal color doppler images of pulsatile jets: in vitro studies [PDF]

open access: yes, 1994
Background: Color Doppler flow mapping is widely used as a marker of severity of valvular regurgitation, and the transesophageal approach has provided high-quality images in patients with poor acoustic windows.
Anayiotos, Andreas   +2 more
core   +2 more sources

Junctional Adhesion Molecule-C Mediates the Recruitment of Embryonic-Endothelial Progenitor Cells to the Perivascular Niche during Tumor Angiogenesis [PDF]

open access: yes, 2020
The homing of Endothelial Progenitor Cells (EPCs) to tumor angiogenic sites has been described as a multistep process, involving adhesion, migration, incorporation and sprouting, for which the underlying molecular and cellular mechanisms are yet to be ...
Bieback, Karen   +6 more
core   +1 more source

Comparative Evaluation of Three Preprocessing Methods for Extraction and Detection of Influenza A Virus Nucleic Acids from Sputum

open access: yesFrontiers in Medicine, 2018
Viscous sputum specimens usually cannot undergo automated extraction, and thus, a pre-homogenization process is desirable before isolating nucleic acids for real-time reverse transcription PCR.
Fei Yu   +6 more
doaj   +1 more source

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