Sentences with phrase «resistance genes spread»
A plasmid is like a bacterial gene delivery truck; it is the primary way antibiotic resistance genes spread between bacteria.
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In both cases, the resistance gene spread significantly more slowly in the populations under the influence of pesticide.
Not exact matches
Microbes could load these donated genes together on a single piece of DNA, accelerating the spread of resistance even further.
No doctor wants to ignore an opportunity to save a patient from infectious disease, yet much of what is prescribed is probably unnecessary — and all of it feeds the spread of resistance genes in hospitals and apparently throughout the environment.
The answer is important because sludge bacteria are much more likely to thrive and spread their resistance genes once the sludge is discharged into rivers (in treated wastewater) and onto crop fields (as slurried fertilizer).
At this stage, the bacteriophage infected other Salmonella cells, possibly also spreading novel virulence or resistance genes, the authors say.
The researchers found that the gene conferring drug resistance has spread among bacteria in China, where colistin is widely fed to livestock as a prophylactic.
Last year, his group found the hotly sought molecular marker of artemisinin resistance, the Kelch 13 or K13 gene, enabling researchers to map its extent and spread in exquisite detail.
Traditional antibiotics lay waste to most bacteria, but some cells inevitably survive, and their mutated genes — which are the source of resistance — spread through the population.
Identifying where resistance genes come from and how they spread somewhat compares to finding patient zero in an outbreak, which is not an easy task.
The gene for colistin resistance can be easily spread to other bacteria, making it likely that colistin resistance will become widespread in the future.»
Researchers have been tracking the spread of artemisinin - resistant parasites first by looking for signs in patients, and later by using multiple mutations in the parasite's Kelch13, or K13, gene, as molecular markers for resistance.
It will also allow for easier identification of genes that contribute to the bacteria's spread from patient to patient, and more meaningful scientific experiments to understand the bug's resistance to antibiotics or identify new antimicrobial compounds that target specific genes necessary for maintaining these persistent infections.
The genes encoding NDM - 1 and other antibiotic resistance factors are usually carried on plasmids — circular strands of DNA separate from the bacterial genome — making it easier for them to spread through populations.
«New technology could reduce spread of antibiotic resistance genes through compost.»
In fields containing refuges of non-modified plants, resistance genes were less likely to be spread through the moth population.
«It is incredibly tempting to assume that antibiotics are promoting the spread of resistance by increasing the rate at which bacteria share resistant genes with each other, but our research shows they often aren't.»
«Antibiotics don't promote swapping of resistance genes: Bacterial resistance spreads through population dynamics, not an increase in gene transfers.»
The message seems clear: antibiotics are losing their magic touch after decades of incautious prescription, improper use and the inevitable spread of bacterial genes that confer drug resistance.
The findings thus challenge the generally held perception that wastewater treatment plants are hotbeds for the spread of antimicrobial resistance genes.
Both the carbapenem resistance and the colistin resistance genes are on separate plasmids, which means in principle they could spread to other bacteria.»
Resistance to colistin has been observed before, but the mutations in bacteria genes that were responsible could not spread outside of the bacteria that developed them and their immediate progeny.
Non-flowering plants could also ensure the containment of genes for herbicide resistance (or other traits conferred to the organisms), counteracting the concern that transgenic trees would spread their lab - produced genetics throughout nearby wild forest.
These genes exist on plasmids, small segments of DNA that are capable of moving from one bacterium to another, potentially spreading antibiotic resistance to other bacterial species.
Still, the apparent benefits of resistance may not be big enough to help the gene spread through a population in the wild, where not all the hosts are infected, says co-author Jason Rasgon.
If rats with this degree of resistance suffer no disadvantages, then the resistance gene will spread and coumarin - derived poisons will become increasingly useless.
He agrees with Chénier about the need for more research on the spread of resistance genes from farms to the environment.
«If mcr - 1 is present in India then that will be a disaster,» says Ghafur, who fears it will spread as fast as did genes for resistance to another antibiotic of last resort, carbapenem.
Biofilms allow these pathogens to resist disinfectants and environmental stressors, and aid in the spread of antibiotic resistance and virulent genes.
Inspired by natural gene drives, researchers have spent decades trying to perfect a system that might endow a population of mosquitoes with a malaria resistance gene, for example, or spread a lethal gene that cuts down a local population of invasive insects or rodents.
Only 18 months later, 25 percent of hospital patients in certain areas in China tested positive for bacteria with this gene: resistances start spreading at unprecedented speeds.
Conjugation is the main route for horizontal gene transfer in bacteria and is responsible for the spread of antibiotic resistance.
These resistance genes can be spread among different bacterial species by bacteriophage,...
Our results indicate that S. argenteus has spread at a relatively rapid pace over the past 2 decades across northeastern Thailand and acquired multiple exotoxin and antibiotic resistance genes that have been linked previously with livestock - associated S. aureus Our findings highlight the clinical importance and potential pathogenicity of S. argenteus as a recently emerging pathogen.
Strong signals of recent selection were observed in insecticide - resistance genes, with several sweeps spreading over large geographical distances and between species.
New nightmare bacteria that have the potential to spread their resistance genes to germs in hospitals around the...
Researchers confirmed that other gonococci strains were able to take up the ceftriaxone - resistance gene, showing its potential to spread in the wild population.