Results 11 to 20 of about 652,351 (312)

Virulence, Antimicrobial Susceptibility, Molecular and Epidemiological Characteristics of a New Serotype of Vibrio parahaemolyticus From Diarrhea Patients

Frontiers in Microbiology, 2020
Vibrio parahaemolyticus is the main pathogen of food-borne diarrheal in coastal areas. Through the study of pathogen characteristics of 1870 V. parahaemolyticus, the isolation rate of O4:KUT had increased significantly since 2013.
Qiaoyun Zhu, Qiaoyun Zhu, Qiaoyun Zhu, Qiaoyun Zhu, Xiao Chen, Xiao Chen, Xiao Chen, Xiao Chen, Yanchao Liu, Yanchao Liu, Yanchao Liu, Ruonan Wang, Ruonan Wang, Ruonan Wang, Jiayao Chen, Yu Chen, Yu Chen, Yu Chen   +17 more
doaj   +1 more source

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

BMC 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, Xuefen Li, Lu Zhang, Qiaoyun Zhu, Chunlei Chen, Jiaqi Bao, Yu Chen   +6 more
doaj   +1 more source

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

Dental 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, Fernanda VICIONI-MARQUES, Fábio Lourenço ROMANO, Marina Guimarães ROSCOE, Vinícius Matsuzaki de SOUZA, Aline Lira TORNERI, Bruno BUENO-SILVA   +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]

Iranian 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, Seyed Mahmoud Sadjjadi, Mohammad Reza Panjehshahin   +2 more
doaj   +1 more source

In vivo and in vitro random mutagenesis techniques in plants [PDF]

EFSA Journal, 2021
Mutations are changes in the genetic material that may be transmitted to subsequent generations. Mutations appear spontaneously in nature and are one of the underlying driving forces of evolution. In plants, in vivo and in vitro random mutagenesis relies on the application of physical and chemical mutagens to increase the frequency of mutations thus ...
EFSA Panel on Genetically Modified Organisms (GMO), Ewen Mullins, Jean‐Louis Bresson, Tamas Dalmay, Ian Crawford Dewhurst, Michelle M Epstein, Leslie George Firbank, Philippe Guerche, Jan Hejatko, Francisco Javier Moreno, Hanspeter Naegeli, Fabien Nogué, Jose Juan Sánchez Serrano, Giovanni Savoini, Eve Veromann, Fabio Veronesi, Josep Casacuberta, Paolo Lenzi, Irene Munoz Guajardo, Tommaso Raffaello, Nils Rostoks   +20 more
openaire   +8 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

BMC 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, Ang Li, Haishen Kong, Weili Zhang, Hongchao Chen, Yajie Fu, Yiqi Fu   +6 more
doaj   +1 more source

In Vitro Techniques for the Assessment of Neurotoxicity

Environmental Health Perspectives, 1998
Risk assessment is a process often divided into the following steps: a) hazard identification, b) dose-response assessment, c) exposure assessment, and d) risk characterization. Regulatory toxicity studies usually are aimed at providing data for the first two steps.
G. J. Harry, M. Billingsley, A. Bruinink, I. L. Campbell, W. Classen, D. C. Dorman, C.L. Galli, D. Ray, R. A. Smith, H. A. Tilson   +9 more
openaire   +4 more sources

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

International 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, Xiao Chen, Shufa Zheng, Dongsheng Han, Yiyin Wang, Ruonan Wang, Baohong Wang, Yu Chen   +7 more
doaj   +1 more source

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

Frontiers 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, Yu Sun, Shifen Wang, Yan Lv, Cuilin Yan, Cuilin Yan, Yimin Zhu, Yongsheng Zheng, Dawei Cui, Dawei Cui   +9 more
doaj   +1 more source

The effect of different cementation techniques on the amount of remaining excess cement depending on the crown-abutment margin level [PDF]

Vojnosanitetski Pregled, 2023
Background/Aim. One of the disadvantages of the cement-retained fixed implant-supported restorations is the residual cement, which is found on the superstructure after the cementation procedure and has been identified as a risk factor for the occurrence ...
Đorđević Aleksandar, Todić Jelena, Simić Sanja, Lazić Dragoslav, Vlahović Zoran, Šubarić Ljiljana   +5 more
doaj   +1 more source