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:12/22/2016)...  As part of its longstanding mission to improve genetic ... recently released its latest children,s book, titled The ... the topics of inheritance and variation of traits that are ... elementary school classrooms in the US. The ... Ariana Killoran , whose previous book with 23andMe, ...
(Date:12/20/2016)... 2016   Valencell , the leading innovator ... STMicroelectronics (NYSE: STM), a global semiconductor leader serving ... today the launch of a new, highly accurate ... includes ST,s compact SensorTile turnkey multi-sensor ... sensor system. Together, SensorTile and Benchmark deliver the ...
(Date:12/16/2016)... Research and Markets has announced the addition ... to 2021" report to their offering. ... The biometric vehicle access system market, ... of 14.06% from 2016 to 2021. The market is estimated to ... 854.8 Million by 2021. The growth of the biometric vehicle access ...
Breaking Biology News(10 mins):
(Date:1/19/2017)... , Jan 19, 2017 Research and Markets ... has announced the addition of the ... Application - Forecast to 2025" report to their offering. ... The report provides a detailed analysis on current and future ... till 2025, using estimated market values as the base numbers ...
(Date:1/19/2017)... 19, 2017  ArmaGen, Inc., today announced that ... as chief executive officer, as well as a ... to ArmaGen more than 17 years of executive ... of biotherapeutics and pharmaceuticals. "Mathias ... experience and skillset necessary to lead ArmaGen to ...
(Date:1/19/2017)... , ... January 19, 2017 , ... FireflySci Inc. is ... rate. The tremendous growth is accounted to two main factors. The first ... the expanding network of vendors supplying FireflySci products all around the world. , 2016 ...
(Date:1/19/2017)... PLAINVIEW, N.Y. , Jan. 18, 2017 ... pathology services, announces the formation of an Executive Committee ... 2017 and beyond. John Cucci , ... been promoted from Director of Business Development to ... in 2015, Mr. Cucci served in senior sales leadership ...
Breaking Biology Technology: