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Latest Proteobacteria Stories

2010-12-10 07:43:51

(Ivanhoe Newswire) -- Second-hand smoke increases risk of invasive meningococcal disease in children, according to a new study, where authors also found a possible association of second-hand smoke exposure with invasive pneumococcal disease and Haemophilus influenzae type b. The authors reviewed and analyzed published studies (30 case-control and 12 cross-sectional studies, mostly conducted in high income countries with good vaccination policies). They used the findings of all studies that...

2010-12-08 14:11:45

Second-hand smoke increases risk of invasive meningococcal disease in children Children exposed to second-hand smoke are more likely to get invasive meningococcal disease than children who are not exposed, reports a study from Chien-Chang Lee at the Harvard School of Public Health (Boston, USA) and colleagues published in this week's PLoS Medicine. The authors also found a possible association of second-hand smoke exposure with invasive pneumococcal disease and Haemophilus influenzae type b....

2010-10-14 15:13:07

Removing the toxic and odorous emissions of ammonia from the industrial production of fertilizer is a costly and energy-intensive process. Now, researchers in Bangladesh have turned to microbes and inexpensive wood charcoal to create a biofilter that can extract the noxious gas from vented gases and so reduce pollution levels from factories in the developing world. Writing in the International Journal of Environment and Pollution, Jahir Bin Alam, A. Hasan and A.H. Pathan of the Department of...

2010-10-12 13:53:25

Much as an anthropologist can study populations of people to learn about their physical attributes, their environs and social structures, some marine microbiologists read the genome of microbes to glean information about the microbes themselves, their environments and lifestyles. Using a relatively new methodology called comparative population genomics, these scientists compare the entire genomes of different populations of the same microbe to see which genes are "housekeeping" or core genes...

2010-09-07 08:39:07

(Ivanhoe Newswire) -- A case report in this week's issue of The Lancet, investigates an unusual situation where a man contracted Legionnaire's disease through a cut in his hand while planting with potting compost. Legionnaire's disease is a common pneumonia that is typically caused by Legionella pneumophila. Legionnaire's disease caused by L longbeachae is much less common. There have only been nine reported cases of this kind in the United Kingdom since 1984. According to the Centers for...

ae5c3f3ff3098867a184b87fa4f9d8bf1
2010-08-25 13:51:46

Pathogens make themselves feel at home in the human body, invading cells and living off the plentiful amenities on offer. However, researchers at the Max Planck Institute for Infection Biology, Berlin, together with colleagues at Harvard University, reveal an opposite strategy used to ensure infection success. Pathogens can actually delay their entry into cells to ensure their survival. Upon cell contact, bacteria trigger a local strengthening of the cellular skeleton with the aid of...

2010-08-25 13:32:32

Certain pathogens make themselves at home in the human body by invading cells and living off the plentiful amenities on offer there. However, researchers at the Max Planck Institute for Infection Biology, Berlin, together with colleagues at Harvard University, have discovered a contrary strategy to ensure infection success: some pathogens can actually delay their entry into cells to ensure their survival. Upon contact with a cell, these bacteria engage signalling molecules in the cell and...

967359383efa8f14f7bb4a16bb58d0fe1
2010-08-06 08:40:00

The genetic make-up of pathogenic bacteria and their harmless cousins is much more similar than previously thought, UA microbiologists find. In the bacterial world, good guys can potentially turn into bad guys and vice versa - just by swapping genes, microbiologists at the University of Arizona have discovered. The researchers studied bacteria belonging to the genus Neisseria. These bacteria colonize the mucous membranes of humans. Intrigued by the question of why some species of Neisseria...

27efd0bf564cdc8f79aca82615a40432
2010-08-02 08:19:12

Researchers have discovered a mechanism by which Helicobacter pylori, the only known cancer-causing bacterium, disables a tumor suppressor protein in host cells. The new study, in the journal Oncogene, reports the discovery of a previously unknown mechanism linking H. pylori infection and stomach cancer, the second leading cause of cancer deaths worldwide. About two-thirds of the world's population is infected with H. pylori, a bacterium that can survive in the harsh environment of the...

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...


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
bellycheer
  • Good cheer; viands.
  • To revel; to feast.
The word 'bellycheer' may come from 'belle cheer', "good cheer".
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