Results 51 to 60 of about 1,273,913 (331)

Bacterial Extracellular DNA Promotes β-Amyloid Aggregation

open access: yesMicroorganisms, 2021
Alzheimer’s disease is associated with prion-like aggregation of the amyloid β (Aβ) peptide and the subsequent accumulation of misfolded neurotoxic aggregates in the brain.
George Tetz, Victor Tetz
doaj   +1 more source

Transferrin-polycation conjugates as carriers for DNA uptake into cells. [PDF]

open access: yes, 1990
We have developed a high-efficiency nucleic acid delivery system that uses receptor-mediated endocytosis to carry DNA macromolecules into cells. We accomplished this by conjugating the iron-transport protein transferrin to polycations that bind nucleic ...
Beug, Hartmut   +4 more
core   +1 more source

An efficient strategy for broad-range detection of low abundance bacteria without DNA decontamination of PCR reagents. [PDF]

open access: yesPLoS ONE, 2011
BACKGROUND: Bacterial DNA contamination in PCR reagents has been a long standing problem that hampers the adoption of broad-range PCR in clinical and applied microbiology, particularly in detection of low abundance bacteria.
Shy-Shin Chang   +3 more
doaj   +1 more source

Detection of airborne Campylobacter with three bioaerosol samplers for alarming bacteria transmission in broilers. [PDF]

open access: yes, 2011
In an airborne transmission experiment, Campylobacter in the air was sampled by three types of bioaerosol samplers (all-glass impinger AGI-30, Andersen six-stage impactor, and OMNI-3000) in four broiler rooms.
Aarnink, A.J.A.   +5 more
core   +2 more sources

Bacterial DNA topology and infectious disease [PDF]

open access: yesNucleic Acids Research, 2008
The gram-negative bacterium Escherichia coli and its close relative Salmonella enterica have made important contributions historically to our understanding of how bacteria control DNA supercoiling and of how supercoiling influences gene expression and vice versa.
Charles J. Dorman, Colin P. Corcoran
openaire   +5 more sources

Impact of Different Fecal Processing Methods on Assessments of Bacterial Diversity in the Human Intestine. [PDF]

open access: yes, 2016
The intestinal microbiota are integral to understanding the relationships between nutrition and health. Therefore, fecal sampling and processing protocols for metagenomic surveys should be sufficiently robust, accurate, and reliable to identify the ...
Anne Raggio   +7 more
core   +3 more sources

Efficiency of chemical versus mechanical disruption methods of DNA extraction for the identification of oral Gram-positive and Gram-negative bacteria

open access: yesJournal of International Medical Research, 2020
Objective Clinical diagnostics often requires the detection of multiple bacterial species in limited clinical samples with a single DNA extraction method.
Xiaolan Li   +6 more
doaj   +1 more source

Dynamics of Bacteriophage Genome Ejection In Vitro and In Vivo

open access: yes, 2010
Bacteriophages, phages for short, are viruses of bacteria. The majority of phages contain a double-stranded DNA genome packaged in a capsid at a density of ~500 mg/ml. This high density requires substantial compression of the normal B form helix, leading
Molineux, Ian J., Panja, Debabrata
core   +1 more source

Circulating histones as clinical biomarkers in critically ill conditions

open access: yesFEBS Letters, EarlyView.
Circulating histones are emerging as promising biomarkers in critical illness due to their diagnostic, prognostic, and therapeutic potential. Detection methods such as ELISA and mass spectrometry provide reliable approaches for quantifying histone levels in plasma samples.
José Luis García‐Gimenez   +17 more
wiley   +1 more source

Genome-wide identification of essential genes in the invasive Streptococcus anginosus strain

open access: yesScientific Reports
Streptococcus anginosus, part of the Streptococcus anginosus group (SAG), is a human commensal increasingly recognized as an opportunistic pathogen responsible for abscesses formation and infections, also invasive ones.
Aleksandra Kuryłek   +4 more
doaj   +1 more source

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