Results 31 to 40 of about 1,300,625 (285)

Natural History of DNA-Dependent DNA Polymerases: Multiple Pathways to the Origins of DNA

open access: yesViruses, 2023
One of the major evolutionary transitions that led to DNA replacing RNA as the primary informational molecule in biological systems is still the subject of an intense debate in the scientific community.
Sávio Torres de Farias   +3 more
doaj   +1 more source

DNA waves and water [PDF]

open access: yes, 2010
Some bacterial and viral DNA sequences have been found to induce low frequency electromagnetic waves in high aqueous dilutions. This phenomenon appears to be triggered by the ambient electromagnetic background of very low frequency.
A Tedeschi   +12 more
core   +1 more source

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

Substrate-specific clades of active marine methylotrophs associated with a phytoplankton bloom in a temperate coastal environment [PDF]

open access: yes, 2008
Marine microorganisms that consume one-carbon (C1) compounds are poorly described, despite their impact on global climate via an influence on aquatic and atmospheric chemistry.
Boden, Rich   +4 more
core   +2 more sources

Comparison of Bacterial DNA Profiles in Mid-Trimester Amniotic Fluid Samples From Preterm and Term Deliveries

open access: yesFrontiers in Microbiology, 2020
Infection and inflammation are well recognized causes of spontaneous preterm delivery (PTD) (<37 gestational weeks) and adverse infant outcomes. To date, there has been very little investigation into bacterial communities in amniotic fluid using next ...
Lisa Stinson   +14 more
doaj   +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

Antimicrobial activity of an iron triple helicate [PDF]

open access: yes, 2009
The prevalence of antibiotic resistance has resulted in the need for new approaches to be developed to combat previously easily treatable infections.
Adair D. Richards   +15 more
core   +1 more source

Bacteria in the airways of patients with cystic fibrosis are genetically capable of producing VOCs in breath. [PDF]

open access: yes, 2016
Breath contains hundreds of volatile organic compounds (VOCs), the composition of which is altered in a wide variety of diseases. Bacteria are implicated in the formation of VOCs, but the biochemical mechanisms that lead to the formation of breath VOCs ...
Blake, Donald   +3 more
core   +7 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

Idiosyncratic evolution of conserved eukaryote proteins that are similar in sequence to archaeal or bacterial proteins [PDF]

open access: yes, 2008
Sequence comparisons have been made between the proteins of 571 prokaryote species including 46 archaea and 525 bacteria and the set of human proteins.
Roy J. Britten
core   +2 more sources

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