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877 Current news about the topic bacteria

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Can nanoparticles be used to lower antibiotic resistance?

13-Jul-2018

Antibiotic resistance is one of the world's most serious threats to public health, forcing the use of medications that are more toxic, more expensive and not always effective. There are several causes, including over-prescription of antibiotics in both humans and in livestock. Two engineers with ...

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Immune system reveals new ways to treat brain disease and pain

09-Jul-2018

Boosting the immune system could offer a radical new way to treat Alzheimer’s disease, according to Dr Michal Schwartz from the Weizmann Institute of Science in Israel. Experiments in mice have shown that targeting immune cells arrested the damage to the brain and helped preserve cognition. For ...

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Hospital germs have their flaws too

Researchers discovered a target for novel medications

09-Jul-2018

The hospital germ Pseudomonas aeruginosa can cause serious wound as well as lung and urinary tract infections, especially in weakened individuals. Pseudomonas manages time and again to survive attacks of the immune system and antibiotic therapies. One key to the success of this persistent ...

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Bacteria-powered solar cell converts light to energy, even under overcast skies

06-Jul-2018

University of British Columbia researchers have found a cheap, sustainable way to build a solar cell using bacteria that convert light to energy. Their cell generated a current stronger than any previously recorded from such a device, and worked as efficiently in dim light as in bright ...

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Timing is key for bacteria surviving antibiotics

04-Jul-2018

For bacteria facing a dose of antibiotics, timing might be the key to evading destruction. In a series of experiments, Princeton researchers found that cells that repaired DNA damaged by antibiotics before resuming growth had a much better chance of surviving treatment. When antibiotics hit a ...

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Don't sweat it: Scientists identify key step in production of BO

04-Jul-2018

If this surprisingly hot British summer has you fighting off unwelcome armpit aromas, you'll be pleased to learn that science has just brought us a step closer to blocking body odour (BO). Researchers have unravelled a key part of the molecular process by which armpit bacteria produce the most ...

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Bacteria can 'divide and conquer' to vanquish their enemies

04-Jul-2018

Some bacteria can release toxins that provoke their neighbours into attacking each other, a tactic that could be exploited to fight infections. Bacteria often engage in 'warfare' by releasing toxins or other molecules that damage or kill competing strains. This war for resources occurs in most ...

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Fluorescent molecules reveal how cancer cells are inhibited

29-Jun-2018

A team of researchers at Lund University in Sweden has developed a fluorescent variant of a molecule that inhibits cancer stem cells. Capturing images of when the molecule enters a cell has enabled the researchers, using cell-biological methods, to successfully describe how and where the molecule ...

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Scientists watch bacteria 'harpoon' DNA to speed their evolution

15-Jun-2018

Indiana University scientists have made the first direct observation of a key step in the process that bacteria use to rapidly evolve new traits, including antibiotic resistance. Using methods invented at IU, researchers recorded the first images of bacterial appendages -- over 10,000 times ...

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'Tricking' bacteria into hydroxylating benzene

15-Jun-2018

Breaking carbon-hydrogen bonds is notoriously difficult in lab chemistry, yet nature does it effortlessly. Now, scientists have used E.coli bacteria to oxidize the C-H bonds in benzene to generate phenol, with a genetically inserted enzyme (cytochrome P450BM3), that originally evolved to target ...

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