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:2/26/2017)... DALLAS , Feb. 25, 2017  Securus ... justice technology solutions for public safety, investigation, corrections ... of Recidivism and Reentry. "Too often, ... State prisons and county jails are trying to ... of inmates and friends and family members. While significant ...
(Date:2/21/2017)... 2017 Der weltweite Biobanking-Sektor wird ... einem Gespräch mit mehr als 50 Vertretern aus verschiedenen Branchen ... gilt, um diese Prognose zu realisieren. ... Zu den ... finanziellen Mittel für die Biobank, die Implementierung Zeit sparender ...
(Date:2/13/2017)... -- Former 9/11 Commission border counsel and Special Counsel ... of Identity Strategy Partners, LLP, today releases the ... Order: Protecting the Nation From Foreign Terrorist Entry Into ... President Trump,s ,Travel Ban, Executive Order gains more notoriety ... travel ban, it is important that our national discourse ...
Breaking Biology News(10 mins):
(Date:3/29/2017)... 2017 WuXi Biologics, a leading open-access ... biologics and a WuXi AppTec Affiliate, today announced ... Bioprocessing Excellence Award from IMAPAC, a leading consulting ... to recognize outstanding leaders and trend-setters of today, ... and biomanufacturing experts in the industry, along with ...
(Date:3/29/2017)... , March 29, 2017  Halozyme Therapeutics, Inc. ... and drug-delivery therapies, today announced that an Oncologic ... Drug Administration voted 11 to 0 that the ... injection was favorable for patients in the proposed ... and chronic lymphocytic leukemia. The FDA action date ...
(Date:3/29/2017)... Research and Markets has announced the addition ... Industry Forecast to 2025" report to their offering. ... The Global Agricultural Chelates ... over the next decade to reach approximately $825.4 million by 2025. ... forecasts for all the given segments on global as well as ...
(Date:3/29/2017)... India , March 29, 2017 The ... to 2022 report is a specialized and comprehensive study on the ... North America , Europe and ... Middle East and Africa ... Browse 172 ...
Breaking Biology Technology: