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Biologists discover bacterial defense mechanism against aggressive oxygen
Bacteria possess an ingenious mechanism for preventing oxygen from harming the building blocks of the cell.   view more (2009-11-23)

Study reveals why certain drug combinations backfire
Combination drug therapy has become a staple for treating many infections. For instance, doctors treat extensively drug resistant forms of tuberculosis with one drug that breaks down the pathogen's protective barriers and opens the door for another to deliver the deathblow.   view more (2009-11-16)

Sweet as can be: how E. coli gets ahead
Scientists at the University of York have discovered how certain bacteria such as Escherichia coli have evolved to capture rare sugars from their environment giving them an evolutionary advantage in naturally competitive environments like the human gut.   view more (2009-11-12)

UCSD discovery allows scientists for the first time to experimentally annotate genomes
Over the last 20 years, the sequencing of the human genome, along with related organisms, has represented one of the largest scientific endeavors in the history of mankind.   view more (2009-11-10)

There's a speed limit to the pace of evolution, Penn biologists say
Researchers at the University of Pennsylvania have developed a theoretical model that informs the understanding of evolution and determines how quickly an organism will evolve using a catalogue of "evolutionary speed limits."   view more (2009-11-03)

Duke develops nano-scale drug delivery for chemotherapy
Going smaller could bring better results, especially when it comes to cancer-fighting drugs.   view more (2009-11-02)

Exploring the final frontier: Disease proposed as major barrier to Mars and beyond
New research published in the Journal of Leukocyte Biology suggests that prolific virulence and growth of bacteria, coupled with reduced production of antibodies could limit future space travel.   view more (2009-10-30)

Single-stranded DNA-binding protein is dynamic, critical to DNA repair
Researchers report that a single-stranded DNA-binding protein (SSB), once thought to be a static player among the many molecules that interact with DNA, actually moves back and forth along single-stranded DNA, gradually allowing other proteins to repair, recombine or replicate the strands.   view more (2009-10-22)

Parasite growth hormone pushes human cells to liver cancer
Scientists have found that the human liver fluke (Opisthorchis viverrini) contributes to the development of bile duct (liver) cancer by secreting granulin, a growth hormone that is known to cause uncontrolled growth of cells.   view more (2009-10-09)

Understanding a cell's split personality aids synthetic circuits
As scientists work toward making genetically altered bacteria create living "circuits" to produce a myriad of useful proteins and chemicals, they have logically assumed that the single-celled organisms would always respond to an external command in the same way.   view more (2009-10-05)

Team finds a better way to watch bacteria swim
Researchers have developed a new method for studying bacterial swimming, one that allows them to trap Escherichia coli bacteria and modify the microbes' environment without hindering the way they move.   view more (2009-10-05)

Yale engineers track bacteria's kayak paddle-like motion for first time
Yale engineers have for the first time observed and tracked E. coli bacteria moving in a liquid medium with a motion similar to that of a kayak paddle.   view more (2009-09-28)

Caltech scientists get detailed glimpse of chemoreceptor architecture in bacterial cells
Using state-of-the-art electron microscopy techniques, a team led by researchers from Caltech has for the first time visualized and described the precise arrangement of chemoreceptors-the receptors that sense and respond to chemical stimuli-in bacteria.   view more (2009-09-25)

How Good Are Indicator Bacteria at Predicting Pathogens in Recreational Water?
Bacteria commonly used to indicate health risks in recreational waters might not be so reliable after all. Pathogenic E. coli were pervasive in stream-water samples with low concentrations of fecal indicator bacteria.    view more (2009-09-23)

How Proteins Talk to Each Other
Investigators at Burnham Institute for Medical Research (Burnham) have identified novel cleavage sites for the enzyme caspase-3 (an enzyme that proteolytically cleaves target proteins).   view more (2009-09-22)

Disease-causing Escherichia coli: 'I will survive'
Strains of Escherichia coli bacteria that cause food poisoning have been shown to have marked differences in the numbers of genes they carry compared to laboratory strains of E. coli.   view more (2009-09-09)

Designing probiotics that ambush gut pathogens
Researchers in Australia are developing diversionary tactics to fool disease-causing bacteria in the gut.   view more (2009-09-08)

Flat bacteria in nanoslits
It appears that bacteria can squeeze through practically anything. In extremely small nanoslits they take on a completely new flat shape. Even in this squashed form they continue to grow and divide at normal speeds.   view more (2009-08-18)

Bacteria pack their own demise
Numerous pathogens contain an 'internal time bomb', a deadly mechanism that can be used against them. After years of work, VIB researchers at the Vrije Universiteit Brussel (VUB) were able to determine the structure and operating mechanism of the proteins involved.   view more (2009-07-31)

Researchers rapidly turn bacteria into biotech factories
High-throughput sequencing has turned biologists into voracious genome readers, enabling them to scan millions of DNA letters, or bases, per hour.   view more (2009-07-27)
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