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Research Proving Link Between Virus And MS Could Point The Way To Treatment And Prevention

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www.ProHealth.com • March 14, 2013


Editor's note: This interesting piece of research has profound implications for people with ME/CFS. Brain MRIs of people with ME/CFS often show plaques, similar in nature, but much smaller than MS (multiple sclerosis) plaques. Rituximab, the anti-cancer therapy which is currently being explored as a possible treatment for ME/CFS, is suggested here as a treatment for MS.

~Source: Queen Mary, University of London, January 4, 2012

A new study from researchers at Queen Mary, University of London shows how a particular virus tricks the immune systeminto triggering inflammation and nerve cell damage in the brain, which is known to cause MS.

Previous research has suggested a link between the Epstein-Barr virus (EBV) and multiple sclerosis but the research has remained controversial since scientists have so far failed to substantiate the link.

The new study proves the virus is involved in a manner more sophisticated and subtle than previously imagined, and may offer new ways to treat or prevent the disease.

MS is a neurological condition that affects around 100,000 people in the UK. It can cause vision problems, difficulties with walking and fatigue, and tends to strike mainly young and middle-aged women. Its causes are not completely understood but both genes and environment are known to play a role.

Some previous research has suggested that EBV triggers MS but subsequent studies have failed to find the connection.

The new research, which is published in the journal Neurology, looked at post mortem brains of MS patients, examining areas where neurological damage had recently occurred.

Dr Ute-Christiane Meier from Barts and the London Medical School, part of Queen Mary, led the research. She explained: “EBV is quite a clever virus; when it’s not growing and spreading it can hide away in our immune cells.

“In this study we used a different technique which allowed us to detect the virus in the brains of some people affected by MS, even when it was hiding away in the cells.”

Dr Meier and her team of collaborators found that, although the virus was not actively spreading, it was releasing a chemical message into areas of the brain nearby. This chemical message - made up of small RNA molecules - was activating the body’s immune system, causing inflammation. This damages nerve cells in the brain and causes MS symptoms.

Dr Meier continued: “We have to be careful and have to study more MS brains but this is potentially very exciting research. Now we understand how EBV gets smuggled into the brain by cells of the immune system and that it is found at the crime scene, right where the attack on our nervous system occurs. Now we know this, we may have a number of new ways of treating or even preventing the disease.”

One possibility is the widely-used cancer treatment Rituximab; a drug which is known to kill the cells of the immune system in which the virus hides. It is now being trialed as a treatment for MS.

Another possible approach, using anti-viral treatment, will be tested in clinical trials currently in preparation by Professor Gavin Giovannoni and colleagues, also at Queen Mary.

“If we can pinpoint EBV as a trigger, it’s possible that we could alter the course of MS or potentially even prevent the condition by treating the virus,” Dr Meier added.

“MS so often strikes young women and its unpredictable nature makes it an incredibly difficult disease to live with. We desperately need better ways to tackle the condition.”

Interestingly, the research also hinted that infection with EBV and its action on the immune system could also be playing a role in other brain diseases such as cancer and stroke.

This research was supported by the Medical Research Council and MS charities, Roan Charitable Trust and Aims2Cure.

Reprinted with kind permission from Queen Mary, University of London



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