Results 31 to 40 of about 1,207,187 (236)

Plasma Bacterial DNA Load as a Potential Biomarker for the Early Detection of Colorectal Cancer: A Case–Control Study

open access: yesMicroorganisms, 2023
The gut microbiota has gained increasing attention in recent years due to its significant impact on colorectal cancer (CRC) development and progression.
Robertina Giacconi   +14 more
doaj   +1 more source

The active microbial community more accurately reflects the anaerobic digestion process: 16S rRNA (gene) sequencing as a predictive tool [PDF]

open access: yes, 2018
Background: Amplicon sequencing methods targeting the 16S rRNA gene have been used extensively to investigate microbial community composition and dynamics in anaerobic digestion.
de Vrieze, Jo   +3 more
core   +2 more sources

Potential Capsule Switching from Serogroup Y to B: The Characterization of Three such Neisseria meningitidis Isolates Causing Invasive Meningococcal Disease in Canada

open access: yesCanadian Journal of Infectious Diseases and Medical Microbiology, 2005
Three group B Neisseria meningitidis isolates, recovered from meningococcal disease cases in Canada and typed as B:2c:P1.5, were characterized. Multilocus sequence typing showed that all three isolates were related because of an identical sequence ...
Raymond SW Tsang   +5 more
doaj   +1 more source

The replication of DNA in Escherichia coli [PDF]

open access: yes, 1958
Studies of bacterial transformation and bacteriaphage infection (1-5) strongly indicate that deoxyribonucleic acid (DNA) can carry and transmit hereditary information and can direct its own replication.
Meselson, Matthew, Stahl, Franklin W.
core   +1 more source

Quantification of Bacterial Colonization in Dental Hard Tissues Using Optimized Molecular Biological Methods

open access: yesFrontiers in Genetics, 2020
Bacterial infections of root canals and the surrounding dental hard tissue are still a challenge due to biofilm formation as well as the complex root canal anatomy.
Torsten Sterzenbach   +4 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

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

How endo- is endo-?: surface sterilization of delicate samples: a Bryopsis (Bryopsidales, Chlorophyta) case study [PDF]

open access: yes, 2010
In the search for endosymbiotic bacteria, elimination of ectosymbionts is a key point of attention. Commonly, the surface of the host itself or the symbiotic structures are sterilized with aggressive substances such as chlorine or mercury derivatives ...
De Clerck, Olivier   +3 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

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

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