Pathogen News and Research

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Engineered protein from flesh-eating bacteria acts as molecular 'superglue'

In a classic case of turning an enemy into a friend, scientists have engineered a protein from flesh-eating bacteria to act as a molecular "superglue" that promises to become a disease fighter. And their latest results, which make the technology more versatile, were the topic of a report here today at the 245th National Meeting & Exposition of the American Chemical Society, the world's largest scientific society.

12 Apr 2013

Researchers use metagenomics to identify the cause of outbreaks of bacterial infection

Researchers have been able to reconstruct the genome sequence of an outbreak strain of Shiga-toxigenic Escherichia coli (STEC), which caused over 50 deaths in Germany, using an approach known as metagenomics which bypasses the need for growing bacteria in the lab.

12 Apr 2013

Researchers unravel dual role of tumor necrosis factor in TB

Tumor necrosis factor - normally an infection-fighting substance produced by the body- can actually heighten susceptibility to tuberculosis if its levels are too high.

12 Apr 2013

Rising temperature induces key changes in dengue virus

Researchers have discovered that rising temperature induces key changes in the dengue virus when it enters its human host, and the findings represent a new approach for designing vaccines against the aggressive mosquito-borne pathogen.

12 Apr 2013

Virginia Tech scientists provide new evidence that biofilms are at work in survival of Salmonella

Virginia Tech scientists have provided new evidence that biofilms - bacteria that adhere to surfaces and build protective coatings - are at work in the survival of the human pathogen Salmonella.

11 Apr 2013

Tiny proteins prevent bacterial gene transcription

In the search for new antibiotics, researchers are taking an unusual approach: They are developing peptides, short chains of protein building blocks that effectively inhibit a key enzyme of bacterial metabolism.

10 Apr 2013

Researchers develop new strategy to control inflammation without serious side effects

A potential new strategy to developing new drugs to control inflammation without serious side effects has been found by Georgia State University researchers and international colleagues.

10 Apr 2013

Researchers use metagenomics to reconstruct genome sequence of Shiga-toxigenic Escherichia coli

Researchers have been able to reconstruct the genome sequence of an outbreak strain of Shiga-toxigenic Escherichia coli using metagenomics (the direct sequencing of DNA extracted from microbiologically complex samples), according to a study in the April 10 issue of JAMA, a Genomics theme issue.

10 Apr 2013

Gene behind Vel blood group discovered

Researchers have uncovered the gene at the root of a human blood group that has remained a mystery for the past 60 years. They showed that a genetic deletion on this gene is responsible for the lack of this blood group in some people.

8 Apr 2013

Researchers use single-cell genome sequencing approach to analyze microbe from biofilm in hospital

A team of researchers led by scientists from the J. Craig Venter Institute (JCVI) has published a study outlining the recovery and genomic analysis, using single-cell genomic techniques, of a periodontal pathogen, Porphyromonas gingivalis, from a hospital sink.

6 Apr 2013

Study offers new possibilities for developing potent antibacterial drugs

A new study which was performed jointly at Ume- University and the University of Washington in Seattle, USA, discovered that bacteria can degrade the cell membrane of bacterial competitors with enzymes that do not harm their own membrane.

5 Apr 2013

Not all mice that come into contact with Borrelia contract Lyme disease, study finds

Like humans, mice can become infected with Borrelia. However, not all mice that come into contact with these bacteria contract the dreaded Lyme disease: Animals with a particular gene variant are immune to the bacteria, as scientists from the universities of Zurich and Lund demonstrate.

5 Apr 2013

Metallothioneins play major role in virulence of Cryptococcus neoformans

Metallothioneins, proteins able to capture metal ions, play a major role in the virulence of Cryptococcus neoformans, a fungal pathogen which causes severe infections in immunodeficient and immunocompetent individuals (AIDS patients, transplant receivers, etc.)

5 Apr 2013

Research findings provide insight into severe bacterial infectious diseases

UT Southwestern Medical Center researchers report that a pathogen annually blamed for an estimated 90 million cases of food-borne illness defeats a host's immune response by using a fat-snipping enzyme to cut off cellular communication.

5 Apr 2013

Same factor that helps fight off severe inflammatory ailments also functions as enemy

The same factor in our immune system that is instrumental in enabling us to fight off severe and dangerous inflammatory ailments is also a player in doing the opposite at a later stage, causing the suppression of our immune response.

4 Apr 2013

LSUHSC researchers study common STI

Research led by David H. Martin, MD, Professor and Chief of Infectious Diseases at LSU Health Sciences Center New Orleans, has found that a common sexually transmitted infection-causing parasite "cultivates" bacteria beneficial to it, changing thinking about which comes first-infection or bacteria.

3 Apr 2013

Antibodies neutralize mosquito-transmitted chikungunya virus, researchers reveal

Researchers have learned the precise structure of the mosquito-transmitted chikungunya virus pathogen while it is bound to antibodies, showing how the infection is likely neutralized.

3 Apr 2013

Texas Tech Professor receives NIH grant to research on leishmaniasis

A Texas Tech University biology professor received a five-year, $1.6 million grant from the National Institutes of Health to study the biochemistry of a microscopic parasite responsible for the tropical disease leishmaniasis in the hope of finding a cure.

2 Apr 2013

Scientists say DHA-rich fish oil enhances B cell activity

Fish oil rich in DHA and EPA is widely believed to help prevent disease by reducing inflammation, but until now, scientists were not entirely sure about its immune enhancing effects. A new report appearing in the April 2013 issue of the Journal of Leukocyte Biology, helps provide clarity on this by showing that DHA-rich fish oil enhances B cell activity, a white blood cell, challenging the notion that fish oil is only immunosuppressive.

2 Apr 2013

Research findings could lead to new targets for treating inflammatory disorders

Researchers at UC Davis have shown how the innate immune system distinguishes between dangerous pathogens and friendly microbes. Like burglars entering a house, hostile bacteria give themselves away by breaking into cells. However, sensing proteins instantly detect the invasion, triggering an alarm that mobilizes the innate immune response.

2 Apr 2013

Pathogen News and Research

Engineered protein from flesh-eating bacteria acts as molecular 'superglue'

Researchers use metagenomics to identify the cause of outbreaks of bacterial infection

Researchers unravel dual role of tumor necrosis factor in TB

Rising temperature induces key changes in dengue virus

Virginia Tech scientists provide new evidence that biofilms are at work in survival of Salmonella

Tiny proteins prevent bacterial gene transcription

Researchers develop new strategy to control inflammation without serious side effects

Researchers use metagenomics to reconstruct genome sequence of Shiga-toxigenic Escherichia coli

Gene behind Vel blood group discovered

Researchers use single-cell genome sequencing approach to analyze microbe from biofilm in hospital

Study offers new possibilities for developing potent antibacterial drugs

Not all mice that come into contact with Borrelia contract Lyme disease, study finds

Metallothioneins play major role in virulence of Cryptococcus neoformans

Research findings provide insight into severe bacterial infectious diseases

Same factor that helps fight off severe inflammatory ailments also functions as enemy

LSUHSC researchers study common STI

Antibodies neutralize mosquito-transmitted chikungunya virus, researchers reveal

Texas Tech Professor receives NIH grant to research on leishmaniasis

Scientists say DHA-rich fish oil enhances B cell activity

Research findings could lead to new targets for treating inflammatory disorders

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