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Signs of MS can be spotted five years before onset (25/04/17)

People with multiple sclerosis (MS) can show signs of something being wrong five years before the onset of disease, much earlier than previously thought, according to a new analysis of health records from people with the condition.

The new research, published in Lancet Neurology, is a first step to identifying red flags that could help doctors screen for the disease and start interventions earlier. It could also point researchers in a new direction for finding the root cause.
 
"Proving that people with MS have already changed their behaviour in the five years before even the earliest medical recognition of the condition is very important because it means we have to look beyond those five years to understand how it is caused," said Helen Tremlett, Senior Author of the study and a Professor in the Department of Medicine at the Djavad Mowafaghian Centre for Brain Health.

Once a person is diagnosed with MS, a physician will try to pinpoint the onset of the disease, sometimes known as the patient's first demyelinating event, and can include problems with vision or motor control. 

The researchers examined health records of 14,000 people with MS from B.C., Saskatchewan, Manitoba and Nova Scotia over a 20-year period and compared them to the health records of 72,000 people without the disease. They were looking for something called a prodrome, an early set of symptoms that can indicate the onset of a disease. 

Prodromes have been identified for other neurological conditions like Alzheimer's and Parkinson's diseases. The recognition of these prodromes has provided clues about how the diseases might begin and has stimulated new research into causes or triggers. 

This study of patients from across Canada revealed that there is a phase where people begin to show symptoms before MS is medically recognised. During this phase patients tend to visit their physicians, be admitted to a hospital and fill prescriptions more than the general population.

"There's something going on here that makes this population of people unique," said José Wijnands, First Author of the manuscript, a Postdoctoral Fellow and a Michael Smith Foundation for Health Research trainee. 

"When other degenerative brain diseases have a prodrome, it suggests that something may be happening," said Tremlett. "We hope to uncover what this might be in MS." 

Going forward, the team of researchers will try to understand why these patients had been using the health-care system differently, and whether there are trends in illnesses reported and prescriptions filled that point to a specific set of symptoms that doctors could use to help identify the condition earlier.

Source: MS-UK (25/04/17)

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