bacteria 2 4

Tag: "bacteria" at biology news

New antibacterials being developed to tackle MRSA superbug

...m the Wellcome Trust block the ability of the MRSA bacteria to divide and multiply. They do this by inhibiting the function of the bacterium's FtsZ protein, which is essential for cell division. FtsZ is not found in humans so targeting a unique protein like this should reduce the likelihood of side-effects in...

Out of Africa -- Bacteria, as well

...differences developed in the genetic makeup of the bacteria populations, just as it did in that of the various...um that can cause stomach ulcers. Like humans, the bacteria are also split up into numerous regional populations. A team of scientists led by Mark Achtman at th...

Trojan horse strategy defeats drug-resistant bacteria

A new antimicrobial approach can kill bacteria in laboratory experiments and eliminate life-threa...Rather than trying to find agents that best killed bacteria in test tubes, they sought to intensify the stress imposed on microbes by one of the body's own defe...

Xylitol reduces risk of cavities

...ter four weeks, the proportion of caries-producing bacteria was down by a third, but six months afterward the values had returned to the original levels. Despite the relatively high dose of xylitol used, no negative effects were reported, such as stomach troubles. Products with xylitol as the sole sweeten...

Gallium: A new antibacterial agent?

...terial strategies are needed because more and more bacteria are antibiotic resistant and because antibiotics a..., which is critical for bacterial growth, to which bacteria have access. In the study, which appears online on March 15 in advance of publication in the April ...

Cheaper, better disease treatments expected from faster approach to developing antibodies

...ducing disease-fighting antibodies entirely within bacteria has been developed by a research group at The Univ...ibody that looked promising to be transferred from bacteria to mammalian cells to pursue large-scale, commercial production. Getting mammalian cells to prod...

Penn study on lung-infecting bacterial enzyme suggests new approach to cystic fibrosis treatment

...scovered that an enzyme produced by lung-infecting bacteria further shuts down a protein that is defective in ...mbrane conductance regulator. SMase is made by the bacteria that cause pneumonia, some anthrax-causing bacteria, and bacteria that cause opportunistic infection...

Napoleon's mysterious death unmasked, UT Southwestern researcher says

...eptibility, chronic gastritis and infection by the bacteria Helicobacter pylori . Although genetic susceptibility is a possible cause, it's not likely, Dr. Genta said. That's because the autopsy of Napoleon's father described a tumor that might have been something other than gastric cancer. And because au...

Freeze! Scientists film proteins at work by freezing them at different states

... The enzyme studied by the team acts uniquely in bacteria and its counterpart in humans is more complex. Synthesizing an enzyme like the one studied through biomimetics is an exciting possibility for developing future drugs. In order to produce the film, the team used the ESRF-IBS “Cryobench?laboratory t...

Researchers uncover protection mechanism of radiation-resistant bacterium

...e incredible degree of resistance exhibited by the bacteria has to do with its mechanism of DNA repair, and the majority of research on the bacteria has centered on this hypothesis. However, D. radiodurans has subsequently shown nothing obviously un...

Will the plague pathogen become resistant to antibiotics?

A small piece of DNA that helps bacteria commonly found in US meat and poultry resist sever...ause the same ability is present in other kinds of bacteria from a broad range of livestock, antibiotic resistance could potentially spread to other Y. pestis a...

Bacteria research offers hope for new vaccine against meningococci

...used mice that produce the human receptor that the bacteria bind to. Marking the bacteria to emit light, the scientists used cameras to monitor their activities in the living mice during the...

Deep in the ocean, a clam that acts like a plant

...unctional digestive system, depending on symbiotic bacteria to use energy locked up in hydrogen sulfide to rep...ry out carbon fixation," Eisen said. The symbiotic bacteria also fix nitrogen and produce amino acids, vitamins and other nutrients required by the clam. Stu...

MIT biologists solve vitamin puzzle

... why it took so long to identify BluB is that some bacteria lacking the enzyme can form DMB through an alterna... Still to be explored is the question of why soil bacteria synthesize B12 at all, Walker said. Soil microorganisms don't require B12 to survive, and the plants...

Cells use 'noise' to make cell-fate decisions

...enetic circuit that controls the transformation of bacteria cells from one state to another. This process, called differentiation, is akin to that used by human stem cells to change into a specific tissue type. In a series of theoretical calculations and actual experiments, the researchers found that the ...

'Ancestral eve' was mother of all tooth decay

...al branches, tracing the coevolution of humans and bacteria from Asia into North and South America, will be drawn in the next phase of Caufield’s analysis. ...

Bacteria from patient's dental plaque causes ventilator-associated pneumonia

...ffalo School of Dental Medicine show that the same bacteria identified in dental plaque of patients when they ...oresis. Results showed that genetic profiles of bacteria from tracheal and bronchial samples of the nine patients with pneumonia were identical to profiles o...

Bacteria could steady buildings against earthquakes

Soil bacteria could be used to help steady buildings against earthquakes, according to researchers at UC Davis. The microbes can literally convert loose, sandy soil into rock. When a major earthquake strikes, deep, sandy soils can turn to liquid, with disastrous ...

Viral protein is an effective preventative against infection

...e alternative to traditional antibiotics, to which bacteria are rapidly becoming resistant. The bacteria that cause middle ear infections, Streptococcus pneumoniae, aren’t transmitted at school. They alrea...

Scientists identify specific enzymes that make meningitis hard to fight

Two enzymes in meningitis bacteria which prevent the body from successfully fighting ...these enzymes play in the process that enables the bacteria to elude the body's natural defences could eventually help scientists develop novel new treatments f...

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