Navigation Links
A virus-like hitchhiker may trigger bacterial meningitis

Reporting in the June 20 issue of The Journal of Experimental Medicine, a group of scientists in Paris, France led by Colin Tinsley may have discovered how a normally harmless bacterium can sometimes trigger outbreaks of life-threatening meningitis.

The human body harbors many harmless bacterial residents, known as commensals. One such bacterium, called Neisseria meningitidis, makes its home in the upper respiratory tract, usually without consequence. But certain strains of N. meningitidis -- known as 'hyperinvasive' strains -- occasionally find their way into the blood stream and then into the brain, where they trigger a potentially fatal immune response (meningitis).

Tinsley and colleagues have now discovered that many hyperinvasive stains of N. meningitidis contain a bacteriophage (a virus-like organism that infects bacteria) inserted into their genetic material. The researchers studied strains of bacteria that had been isolated from humans and found that the strains that carried this virus-like stowaway were more likely to have caused disease. How this bacteriophage causes N. meningitidis to become more dangerous is unknown. It may help the bacteria get into the bloodstream, suggests Tinsley, either by altering the bacteria or by disrupting the immune response that normally protects against it.


'"/>

Source:Journal of Experimental Medicine


Page: 1

Related biology news :

1. Viral hitchhiker inhibits Wolbachia bacterias ability to proliferate
2. Viral DNA sequence a possible trigger for breast cancer
3. Scientists ID molecular switch in liver that triggers harmful effects of saturated and trans fats
4. Source of molecular triggers in cutaneous T cell lymphoma identified
5. Inflammatory molecules released by pollen trigger allergies
6. Opposing fat metabolism pathways triggered by a single gene
7. UNC plant researchers discover proteins interact to form hair-trigger protection against invaders
8. A whole lot of shaking goin on triggers early hatching in red-eyed tree frogs
9. Nicotine triggers the same brain reward circuitry as opiates
10. Molecular trigger for Huntingtons disease found
11. U-M scientists say fused genes trigger the development of prostate cancer
Post Your Comments:
*Name:
*Comment:
*Email:


(Date:3/31/2016)... R.I. , March 31, 2016  Genomics firm ... of founding CEO, Barrett Bready , M.D., who ... members of the original technical leadership team, including Chief ... President of Product Development, Steve Nurnberg and Vice President ... returned to the company. Dr. Bready served ...
(Date:3/21/2016)... 22, 2016 Unique technology ... for superior security   Xura, ... of secure digital communications services, today announced it is ... offer enterprise customers, particularly those in the Financial Services ... voice authentication within a mobile app, alongside, and in ...
(Date:3/14/2016)... , March 14, 2016 NXTD ) ... mobile commerce market, announces the airing of a new series ... the week of March 21 st .  The commercials will ... its popular Squawk on the Street show. --> ... the growing mobile commerce market, announces the airing of a ...
Breaking Biology News(10 mins):
(Date:5/23/2016)... -- Zimmer Biomet Holdings, Inc. (NYSE and SIX: ZBH), a ... of Directors has approved the payment of a quarterly cash ... The cash dividend of $0.24 per share will ... of record as of the close of business on June ... of the Board of Directors and may be adjusted as ...
(Date:5/23/2016)... Alto, CA (PRWEB) , ... May 23, 2016 ... ... and public interest organization focused on molecular nanotechnology, announced the winners for the ... of pioneer physicist Richard Feynman, are given in two categories, one for experiment ...
(Date:5/20/2016)... ... May 20, 2016 , ... Korean researchers say Manumycin A triggers ... a new way to treat the disease. Surviving Mesothelioma has just posted an article ... from several Korean institutions based their mesothelioma study on the fact the Manumycin A, ...
(Date:5/19/2016)... There is no saying when ... relentless pressures in pricing and lack in consumer confidence. ... though - numerous opportunities are up for grabs but ... presents four names in this sector: Portola Pharmaceuticals Inc. ... VTAE ), Anthera Pharmaceuticals Inc. (NASDAQ: ...
Breaking Biology Technology: