Articles with the keyword: 
Long-Term Antibiotic Use Affects "Good" Gut Bacteria
sea-maid submitted, created time 19 hours 1 minute (health.yahoo.com)
Antibiotic treatment, especially when prolonged or repeated, may have a negative impact on beneficial bacteria that live in the gut, according to a new study.
Gut bacteria play helpful roles in various aspects of human nutrition, metabolism and immune responses, experts note.
Researchers focused on the widely-used antibiotic ciprofloxacin, prescribed for a number of bacteria-caused conditions, including urinary tract infections. It has been believed that ciprofloxacin causes only modest harm to beneficial bacteria in the body.
In this study, Stanford University's Dr 
New Bacteria Discovered in Raw Milk
piggy submitted, created time 1 day 15 hours (www.sciencedaily.com)
Raw milk is illegal in many countries as it can be contaminated with potentially harmful microbes. Contamination can also spoil the milk, making it taste bitter and turn thick and sticky. Now scientists have discovered new species of bacteria that can grow at low temperatures, spoiling raw milk even when it is refrigerated.
According to research, the microbial population of raw milk is much more complex than previously thought
sea-maid submitted, created time 3 weeks 17 hours (www.sciencenews.org)
Sugar present in red meat and dairy found to be a risk factor for E. coli infection.
New life found in ancient tombs
sea-maid submitted, created time 1 month 3 weeks (esciencenews.com)
Life has been discovered in the barren depths of Rome's ancient tombs, proving catacombs are not just a resting place for the dead. The two new species of bacteria found growing on the walls of the Roman tombs may help researchers develop new forms of antibiotics. It is even more likely that they will help other researchers find ways to preserve similar tombs and other monuments.
Are Bacteria Foes of Diabetes?
sea-maid submitted, created time 1 month 4 weeks (sciencenow.sciencemag.org)
In mice, researchers uncover link between microbes and metabolic disease prevention. One team noticed that mice developed type 1 diabetes at different rates depending on whether and which strains of bacteria were floating around in their systems. The suggestion? Bacteria may mitigate certain forms of diabetes. We already knew that the darn things like sugar.
Kamikaze bacteria illustrate evolution of cooperation
sea-maid submitted, created time 2 months 3 weeks (www.nature.com)
Bacteria can commit suicide to help their brethren establish more damaging infections — and scientists think that they can explain how this behaviour evolved.
The phenomenon, called self-destructive cooperation, can help bacteria such as Salmonella typhimurium and Clostridium difficile to establish a stronghold in the gut.
Gentle approach could cripple drug-resistant bugs
sea-maid submitted, created time 2 months 3 weeks (www.newscientist.com)
Taking a softly, softly approach to wiping out infection might be the way to beat the evolution of drug resistance in bacteria.
This new technique involves blocking the tularaemia bacterium's ability to sense human hormones. Although testing in human subjects is at least five years off, the bacteria's ability to kill mice was "crippled" by the alterations.
Bacterial locomotion revealed! ...and stoppable!
Darkfrog submitted, created time 5 months 1 day (www.nature.com)
Bacteria have two forms, free-swimming and sessile. It is during this stationary biofilm stage that they cause the most trouble, building up on scientific and medical equipment and forming huge, multi-species colonies or worse--building up in the lungs of people with cystic fibrosis. We've known for years that bacteria have to shut down their flagella to form biofilms, but now we have an idea of how it's done. The gene in question is called epsE
The article describes the molecular motor function as more of a clutch than a brake, but we didn't have auto shop at my high school
Bacteria make major evolutionary shift in the lab
sea-maid submitted, created time 5 months 1 week (www.newscientist.com)
A major evolutionary innovation has unfurled right in front of researchers' eyes. It's the first time evolution has been caught in the act of making such a rare and complex new trait.
Ordinarily E. coli cannot process citrate. In fact, this trait is one of the things that researchers use to distinguish E. coli from other species. This team separated E. coli into twelve separate cultures and allowed it to divide. No matter how they replayed things, only extracts from the one citrate-plus culture ever re-developed citrate processing abilities
sea-maid submitted, created time 5 months 4 weeks (www.sciencenews.org)
Scientists have built the first living computer and tasked it with solving an important problem: flipping pancakes. If you don't know about the flipping pancakes, this study will give you the answer.
Pseudomonas bacteria cooperation is supplied greater resource.
jerry submitted, created time 6 months 4 days (www.biomedcentral.com)
Increasing resources to Pseudomonas bacteria boosts cooperative behavior, such as biofilm production or siderophore formation because the costs of cooperation decrease, confirming experimentally that resource supply is an important factor in the evolution of cooperation.
Thousands of genomes exist in a giant bacterium
sea-maid submitted, created time 6 months 1 week (www.nature.com)
This study tell us about a single-celled bacterium that has been found to keep tens of thousands of copies of its genome.
Bacteria can foresee the danger and respond ahead of time
jerry submitted, created time 6 months 1 week (sciencenow.sciencemag.org)
Now, scientists have found that bacteria may be capable of foreseeing behavior--an ability never seen in such simple organisms.
We've all heard of Pavlov's dogs, the famous canines trained by Russian physiologist Ivan Pavlov to associate food with the sound of a bell. Now, scientists have found that bacteria may be capable of similar behavior--an ability never seen in such simple organisms.
Bacteria can learn to anticipate changes in their environments
Sue Wu submitted, created time 6 months 1 week (www.nature.com)
The simple life of bacteria is a little less simple than you might have thought. New research shows that colonies of Escherichia coli can demonstrate a form of learning.
sea-maid submitted, created time 6 months 2 weeks (www.jcb.org)
The function of macrophage is to block a molecular motor that helps drag bacteria and other potential enemies into the macrophage. CD47 plays an important role in this process: self CD47 prevents cells that carry it from being eaten.
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