Results 21 to 30 of about 1,429,532 (349)

Evaluation of multiplex ARMS-PCR for detection of Helicobacter pylori mutations conferring resistance to clarithromycin and levofloxacin

open access: yesGut Pathogens, 2020
Background Helicobacter pylori bacterium is a major cause of gastritis. With increasing use of antibiotics to treat infections, mutation resistant strains have emerged in most human populations.
Yangxia Li   +7 more
doaj   +1 more source

In vivo and in vitro random mutagenesis techniques in plants

open access: yesEFSA journal. European Food Safety Authority, 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
E. Mullins   +19 more
semanticscholar   +1 more source

The toxicity of nanoparticles and their interaction with cells: an in vitro metabolomic perspective

open access: yesNanoscale Advances, 2023
Nowadays, nanomaterials (NMs) are widely present in daily life due to their significant benefits, as demonstrated by their application in many fields such as biomedicine, engineering, food, cosmetics, sensing, and energy.
Mohammad Awashra, P. Młynarz
semanticscholar   +1 more source

Hydrogels and Bioprinting in Bone Tissue Engineering: Creating Artificial Stem‐Cell Niches for In Vitro Models

open access: yesAdvances in Materials, 2023
Advances in bioprinting have enabled the fabrication of complex tissue constructs with high speed and resolution. However, there remains significant structural and biological complexity within tissues that bioprinting is unable to recapitulate. Bone, for
Francesca K Lewns   +5 more
semanticscholar   +1 more source

Comparison of “hock-a-loogie” saliva versus nasopharyngeal and oropharyngeal swabs for detecting common respiratory pathogens

open access: yesHeliyon, 2023
Self-collection of saliva samples has attracted considerable attention in recent years, particularly during the coronavirus disease 2019 pandemic. However, studies investigating the detection of other common respiratory pathogens in saliva samples are ...
Renke Chen   +15 more
doaj   +1 more source

A simple method for the construction of electrode arrays [PDF]

open access: yes, 1984
A simple method is described for the construction of electrode arrays consisting of insulated metal wires (33 μm diameter) spaced at small, equal distances (0.1 mm).
Holsheimer, J., Verloop, A.J.
core   +9 more sources

Immune Checkpoint Molecules Expressed on CD4+ T Cell Subsets in Chronic Asymptomatic Hepatitis B Virus Carriers With Hepatitis B e Antigen-Negative

open access: yesFrontiers in Microbiology, 2022
BackgroundChronic hepatitis B virus (HBV) infection remains a major public health problem worldwide. Immune checkpoint molecules expressed on CD4+ T cells play critical roles in chronic HBV infection.
Dawei Cui   +7 more
doaj   +1 more source

Effectiveness of in vitro maturation and in vitro fertilization techniques in pigs.

open access: yesJournal of reproduction and fertility. Supplement, 2020
In vitro maturation and in vitro fertilization techniques in pigs have progressed considerably in recent years. Many reports focus on the factors affecting in vitro maturation that lead to normal male pronuclear formation or monospermy after ...
K. Niwa
semanticscholar   +1 more source

Galectin-1 Ameliorates Influenza A H1N1pdm09 Virus-Induced Acute Lung Injury

open access: yesFrontiers in Microbiology, 2020
Influenza remains one of the major epidemic diseases worldwide. Acute lung injury mainly caused by excessive pro-inflammatory host immune responses leads to high mortality rates in severe influenza patients.
Jiaqi Bao   +22 more
doaj   +1 more source

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

open access: yesFrontiers 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   +17 more
doaj   +1 more source

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