Tag Archives: bacteria

Microbial forensics: the science behind the Amerithrax investigation

Nearly a decade after the postal anthrax attacks in the USA that killed 5 individuals and infected more than 20 people, scientists have revealed the measures used to trace the Bacillus anthracis strain used in the bioterror attack in a … Continue reading

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Filed under Genome sequence, Microbiology

CFTR aids Listeria escape into cell cytosol

The intracellular pathogen Listeria monocytogenes must escape the vacuole formed during entry into the host cell to replicate in its preferred environment—the cell cytosol—and continues its life cycle. Although the pore-forming bacterial toxin listeriolysin O is vital for Listeria escape … Continue reading

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Filed under Microbiology

Spreading Salmonella—hyper-replicating bacteria act as a reservoir for dissemination

New research reveals how Salmonella enterica spread in the gut and gallbladder—a subpopulation of Salmonella primed for invasion rapidly replicate in the host cell cytosol such that bacteria-laden cells are extruded out of the epithelial-cell layer releasing invasive Salmonella into … Continue reading

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Filed under Infectious Disease, Microbiology, Uncategorized

Walking with bacteria

They swim, they swarm, they twitch and glide…they even ride on comet tails, and now it seems that bacteria can ‘walk’ as Maxsim Gibiansky and colleagues demonstrate in their short but sweet research published in Science. Gibiansky et al. studied … Continue reading

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Filed under Microbiology

Altruistic bacterial charity workers help protect their vulnerable stressed out kin

US scientists have found that a small minority of highly antibiotic-resistant bacteria will produce and share a molecule, indole, that can activate survival mechanisms in less-resistant cells to enable the whole bacterial population to survive stressful environments despite the fact … Continue reading

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Filed under Microbiology

The MetaHIT catalogue 2010— your gut microbiome directory

An international team of scientists have produced a catalogue of genes from the micro-organisms that live in our gut (the gut microbiome), and it is the first published work from the MetaHIT (Metagenomics of the Human Intestinal Tract) project. “This … Continue reading

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Filed under Microbiology, Science

M cells, gatekeepers or gateway to the gut

Glycoprotein 2 is the M cell receptor for type I pili on bacteria and is important for the immune response to these bacteria, according to research by Hase and colleagues published last week in the journal Nature. The mucosal immune … Continue reading

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Filed under Immunology, Microbiology

There’s gold in them there bacteria

Scientists have found that the bacterium, Cupriavidus metallidurans, can transform toxic gold compounds to metallic gold, according to research by Reith and colleagues published online on the 7th October in the journal PNAS. Bacteria are naturally found on gold particles … Continue reading

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Filed under Biology, Science, Uncategorized

Researchers make first steps towards making a vaccine for urinary tract infections

Fed up of stocking up on cranberry juice to stave off painful peeing….well researchers from the University of Michigan have made an important step towards making a vaccine to prevent urinary tract infections (UTIs), if the immunity seen in mice … Continue reading

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Filed under Infectious Disease, Microbiology, Vaccine

Psycho doesn’t lurk in your shower…….bacteria do

Our daily shower doesn’t just contain water; we can also get a face full of bacteria too. Shower heads can expose people to microbes, including potentially harmful pathogens according to research published this week by Pace (from the University of … Continue reading

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Filed under Microbiology