Wednesday, 3 February 2016

How Chronic Pain Can Change Your DNA And Genetics

Today's post from (see link below) looks at the recent discovery that chronic pain (generally lasting longer than 6 months) can change not only the structure of your DNA but reprograms the way genes work in your immune system. the implications of this are that chronic pain may also change the way other systems in your body work. This may sound very logical to people living with automatic neuropathy (where the body's involuntary functions are affected by nerve damage) but also to people suffering from chronic pain and that includes so many neuropathy patients. It's useful information because future treatments may be gene-targeted and aimed at changing the way our genes respond to pain. Genetic therapies may well be the future of medicine.

Chronic pain changes our immune systems
Date: January 28, 2016 Source: McGill University

Epigenetics may bring us a step closer to better treatments for chronic pain 
 Chronic pain may reprogram the way genes work in the immune system, according to a new study by McGill University researchers published in the journal Scientific Reports.

"We found that chronic pain changes the way DNA is marked not only in the brain but also in T cells, a type of white blood cell essential for immunity," says Moshe Szyf, a professor in the Faculty of Medicine at McGill. "Our findings highlight the devastating impact of chronic pain on other important parts of the body such as the immune system."

Chronic pain -- pain that lasts six months or more -- is one of the most common causes of disability worldwide. Despite enormous efforts to find new therapeutic strategies, however, effective treatments for chronic pain remain elusive.

Using rat models

The all-McGill team examined DNA from brains and white blood cells of rats, using a method that mapped DNA marking by a chemical called a methyl group. "Methyl marks are important for regulating how these genes function," explains co-author Laura Stone, a professor in Dentistry and researcher in the Alan Edwards Centre for Research on Pain. This sort of chemical marking is part of the growing field of epigenetics, which involves modifications that turn genes 'on' or 'off', effectively reprogramming how they work.

"We were surprised by the sheer number of genes that were marked by the chronic pain -- hundreds to thousands of different genes were changed," adds Szyf. "We can now consider the implications that chronic pain might have on other systems in the body that we don't normally associate with pain."

Possible targets for new pain medications

The findings could open new avenues to diagnosing and treating chronic pain in humans, the researchers suggest, as some of the genes found to be marked by chronic pain could also represent new targets for pain medications.

Story Source:

The above post is reprinted from materials provided by McGill University. Note: Materials may be edited for content and length.

Journal Reference:
Renaud Massart, Sergiy Dymov, Magali Millecamps, Matthew Suderman, Stephanie Gregoire, Kevin Koenigs, Sebastian Alvarado, Maral Tajerian, Laura S. Stone, Moshe Szyf. Overlapping signatures of chronic pain in the DNA methylation landscape of prefrontal cortex and peripheral T cells. Scientific Reports, 2016; 6: 19615 DOI: 10.1038/srep19615

McGill University. "Chronic pain changes our immune systems: Epigenetics may bring us a step closer to better treatments for chronic pain." ScienceDaily. ScienceDaily, 28 January 2016. .

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