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Latest Proteobacteria Stories

2010-07-23 13:50:34

Legionnaire's disease bacteria tap into the material transport in immune cells When it infects the lungs, the Legionnaire's bacterium Legionella pneumophila causes acute pneumonia. The pathogen's modus operandi is particularly ingenious: it infiltrates deliberately into cells of the human immune system and injects a host of proteins which then interfere in the normal cellular processes. Scientists from the Max Planck Institute of Molecular Physiology in Dortmund have now discovered how...

2010-06-29 03:04:02

Researchers have identified cells in the immune system that react to the stomach ulcer bacterium Helicobacter pylori, one of the risk factors for the development of stomach cancer. This discovery could lead to faster diagnosis and treatment as well as a better prognosis for patients with stomach cancer, reveals a thesis from the University of Gothenburg, Sweden. Helicobacter pylori is one of the most common bacterial infections in the world, and leads to chronic inflammation of the stomach....

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2010-06-22 07:45:50

Campylobacter jejuni causes more diarrhea than Salmonella Sampling of pigeons captured on the streets of Madrid has revealed the bacterial pathogens they carry. Researchers writing in BioMed Central's open access journal Acta Veterinaria Scandinavica found two bugs that were highly prevalent in the bird population, Chlamydophila psittaci and Campylobacter jejuni, both of which cause illness in humans. Fernando Esper³n from the Animal Health Research Center, Madrid, Spain, worked with a...

2010-06-16 22:16:41

An international team of researchers led by scientists at the Virginia Bioinformatics Institute (VBI) at Virginia Tech have sequenced the genome of an Amerindian strain of the gastric bug Helicobacter pylori, confirming the out-of-Africa migration of this bacterial stowaway to the New World. Experiments in animals have highlighted how specific genes in the bacterial strain may be crucial to the onset of inflammation and disease. H. pylori is a bacterium that colonizes the stomachs of over...

2010-06-15 09:04:00

DALLAS, June 15 /PRNewswire/ -- RealTime Laboratories, LLC announced today significant new findings regarding pervasive bacterial presence unique to contaminated drywall. RealTime has identified specific bacteria found only in symptomatic drywall and not in normal domestic drywall that are viable, pervasive and produce hydrogen sulfide and reduced sulfur gases under conditions similar to those found in residences. Cultures developed by RealTime using symptomatic contaminated drywall...

2010-05-28 06:00:00

CHICAGO, May 28 /PRNewswire-FirstCall/ -- Advanced Life Sciences Holdings, Inc. (OTC Bulletin Board: ADLS), a biopharmaceutical company engaged in the discovery, development and commercialization of novel drugs in the therapeutic areas of infection, oncology and respiratory diseases, today announced the expansion of its collaboration with the U.S. Government to include the evaluation of Restanza's activity against sexually transmitted infections (STI's), such as gonorrhea. Under the...

2010-05-28 06:00:00

SEATTLE, May 28 /PRNewswire/ -- The bacterium Helicobacter pylori, which lives in the human stomach and is associated with ulcers and gastric cancer, is shaped like a corkscrew, or helix. For years researchers have hypothesized that the bacterium's twisty shape is what enables it to survive - and thrive - within the stomach's acid-drenched environment, but until now they have had no proof. For the first time, researchers at Fred Hutchinson Cancer Research Center have found that, at least...

2010-05-27 17:01:09

Unlocking the keys to H. pylori's helical structure may lead to better antibiotic drugs for diseases from ulcers and stomach cancer to diarrhea and cholera The bacterium Helicobacter pylori, which lives in the human stomach and is associated with ulcers and gastric cancer, is shaped like a corkscrew, or helix. For years researchers have hypothesized that the bacterium's twisty shape is what enables it to survive "“ and thrive "“ within the stomach's acid-drenched environment, but...

2010-05-18 08:15:18

A new "tree of life" has been constructed by researchers at the Virginia Bioinformatics Institute (VBI) at Virginia Tech for the gamma-proteobacteria, a large group of medically and scientifically important bacteria that includes Escherichia coli, Salmonella typhimurium, and other disease-causing organisms.* By building powerful phylogenetic trees, scientists are able to quickly identify similarities and differences between the make-up of many different organisms, crucial information in the...

2010-05-09 08:40:00

Eradication of Helicobacter pylori (H. pylori) is a well-accepted initial therapy in cases of localized (stage ⓦ E) low-grade gastric mucosa-associated lymphoid tissue (MALT) lymphoma associated with H. pylori infection. However, there are no treatment guidelines for the management of H. pylori-negative low-grade gastric MALT lymphoma. Retrospectively reviewing the clinical outcome and clinicopathologic factors of stage ⓦ E H....


Latest Proteobacteria Reference Libraries

0_0d5d532211b8a47882b168c09689c84f
2011-04-25 21:28:48

Salmonella enterica is a subspecies of Salmonella enterica, the rod shaped, flagellated, aerobic, Gram-negative bacterium. It is a member of the genus Salmonella and many of the pathogenic serovars of the S. enterica species are in this subspecies. Serovars can be designated fully or in a shortened form. The genus, Salmonella, is on the short form lists which are followed by the capitalized and non-italicized serovar. Each serovar can have many strains as well, which allows for a rapid...

72_d0e074525de5bb741daf382f8d62213f
2011-04-25 16:38:12

Neisseria meningitidis is a heterotrophic gram-negative diplococcal bacterium best known for its role in meningitis and other forms of meningococcal disease such as meningococcemia. It is a major cause of morbidity and mortality during childhood in industrialized countries and is responsible for epidemics in Africa and in Asia. In the US there are approximately 2500 to 3500 cases of N. meningitides infections. Children under 5 are at a higher risk as well as people in the sub-Saharan...

45_d6be6f801c571ef90f6e4b56412c5274
2011-04-15 15:38:47

Helicobacter pylori is a Gram-negative, microaerophilic bacterium that can inhabit various areas of the stomach, particularly the antrum. It causes low-level inflammation of the stomach lining and is linked to gastric ulcers and stomach cancer. Out of those infected, 80%, are asymptomatic. It was initially named Campyloacter pyloridis and then renamed C. pylori to correct the Latin grammar error. It was later placed in the genus, Helicobacter. Over 50% of the population has H. pylori in...

72_63ad42c17b548b76aff6af345a402a04
2011-04-15 15:26:30

Haemophilus influenzae is a Gram-negative, rod-shaped bacterium first described in 1892 by Richard Pfeiffer during an influenza pandemic. It is generally aerobic but can grow as a facultative anaerobe. H. influenzae was mistakenly considered to be the cause of influenza until 1933 when the flu virology became apparent. It was the first free-living organism to have its entire genome sequenced. The project was completed and published in 1995. Two major categories were defined: the...

72_d98ab0249709d892687c999e0e599da3
2011-04-15 15:19:01

Haemophilus ducreyi is a fastidious gram-negative coccobacillus causing the sexually transmitted disease chancroid, a major cause of genital ulceration in developing countries characterized by painful sores on the genitalia. Early symptoms are dark and light green shears in excrement. Chancroid starts as an erythematous popular lesion that breaks down into a painful bleeding ulcer. It can be cultured on chocolate agar. It is an opportunistic microorganism that infects through the...

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Word of the Day
tesla
  • The unit of magnetic flux density in the International System of Units, equal to the magnitude of the magnetic field vector necessary to produce a force of one newton on a charge of one coulomb moving perpendicular to the direction of the magnetic field vector with a velocity of one meter per second. It is equivalent to one weber per square meter.
This word is named for Nikola Tesla, the inventor, engineer, and futurist.