News tagged with resistance genes
How one strain of MRSA becomes resistant to last-line antibiotic
Researchers have uncovered what makes one particular strain of methicillin-resistant Staphylococcus aureus (MRSA) so proficient at picking up resistance genes, such as the one that makes it resistant to vancomycin, the last ...
May 22, 2012 |
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Noxious nanotech: Water-borne nanomaterials promote multidrug-resistance gene transfer
(PhysOrg.com) -- The arms race between effective antibiotic prophylaxis and closely related strains or species of bacteria is continually escalating. Bacteria can quickly develop genetic resistance to a range ...
Nanotechnology / Bio & Medicine
Mar 30, 2012 |
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Study shows evolutionary adaptations can be reversed, but rarely
(PhysOrg.com) -- Ever since Charles Darwin proposed his theory of evolution in 1859, scientists have wondered whether evolutionary adaptations can be reversed.
May 11, 2011 |
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Functional genomics gets tiny
A little more than a decade ago, researchers discovered an ancient mechanism that cells use to silence genes. Like a dimmer switch turning down a light, RNA interference (RNAi) dials down gene activity in ...
May 17, 2012 |
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With secondhand gene, 'freaky mouse' defeats common poison
Over millennia, mice have thrived despite humanity's efforts to keep them at bay. A Rice University scientist argues some mice have found two ways to achieve a single goal -- resistance to common poison.
Jul 21, 2011 |
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Obese father rats have unhealthy daughters
(PhysOrg.com) -- A new study in rats has found the female pups of obese males may be more likely to develop symptoms of diabetes later in life. The condition is not a case of genetic inheritance, but appears ...
Medicine & Health / Medical research
Oct 21, 2010 |
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Horizontal gene transfer in microbes much more frequent than previoulsy thought
(PhysOrg.com) -- A new study suggests that genes are transferred from one micro-organism to another up to a hundred million times more frequently than previously thought.
Oct 04, 2010 |
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Bean bugs found to harbor bacteria that keep them safe from an insecticide
(Phys.org) -- Conventional wisdom says that in order for a species of insect to develop resistance to an antibiotic, several generations have to pass, whereby genes from those that have some natural resistance ...
Apr 25, 2012 |
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'Nanobubbles' plus chemotherapy equals single-cell cancer targeting
Using light-harvesting nanoparticles to convert laser energy into "plasmonic nanobubbles," researchers at Rice University, the University of Texas MD Anderson Cancer Center and Baylor College of Medicine (BCM) ...
Nanotechnology / Bio & Medicine
Apr 09, 2012 |
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Soil bacteria and pathogens share antibiotic resistance genes
(PhysOrg.com) -- Disease-causing bacteria’s efforts to resist antibiotics may get help from their distant bacterial relatives that live in the soil, new research at Washington University School of Medicine ...
Feb 21, 2012 |
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Antibiotic resistant bacteria proliferate in agricultural soils
Infectious diseases kill roughly 13 million people worldwide, annually, a toll that continues to rise, aided and abetted by resistance genes. Now a study, published in the March Antimicrobial Agents and Chemotherapy finds ...
Mar 20, 2012 |
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Bacteria may readily swap beneficial genes
(PhysOrg.com) -- Much as people can exchange information instantaneously in the digital age, bacteria associated with humans and their livestock appear to freely and rapidly exchange genetic material related ...
Oct 31, 2011 |
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Research finds novel method for increasing antibiotic yields
A novel way of increasing the amounts of antibiotics produced by bacteria has been discovered that could markedly improve the yields of these important compounds in commercial production. It could also be valuable in helping ...
Sep 05, 2011 |
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Deadly bacteria may mimic human proteins to evolve antibiotic resistance
Deadly bacteria may be evolving antibiotic resistance by mimicking human proteins, according to a new study by the Translational Genomics Research Institute (TGen).
Jun 01, 2011 |
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Scientists first to characterize barley plant-stem rust spore 'communication'
Traditional thought has held that disease had to penetrate a plant to initiate resistance; however, two Washington State University scientists have established that a barley plant recognizes an invader and begins to marshal ...
Oct 13, 2011 |
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