Parkinson’s disease is not one, but two diseases

Dovie Salais

Although the name may suggest otherwise, Parkinson’s disease is not one but two diseases, starting either in the brain or in the intestines. Which explains why patients with Parkinson’s describe widely differing symptoms, and points towards personalised medicine as the way forward for people with Parkinson’s disease.

This is the conclusion of a study which has just been published in the leading neurology journal Brain.

The researchers behind the study are Professor Per Borghammer and Medical Doctor Jacob Horsager from the Department of Clinical Medicine at Aarhus University and Aarhus University Hospital, Denmark.

“With the help of advanced scanning techniques, we’ve shown that Parkinson’s disease can be divided into two variants, which start in different places in the body. For some patients, the disease starts in the intestines and spreads from there to the brain through neural connections. For others, the disease starts in the brain and spreads to

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Why Rheumatoid Arthritis May Actually Be 2 Different Diseases

Dovie Salais

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Researchers say rheumatoid arthritis can be divided into two types: people with autoantibodies and those without them. Getty Images
  • Researchers say rheumatoid arthritis may actually be two diseases instead of just one.
  • They recommend that the disease be divided into two types: people with autoantibodies and people without them.
  • They say people with autoantibodies appear to have better long-term outcomes in the reduction of rheumatoid arthritis symptoms.

It’s bad enough that rheumatoid arthritis (RA) exists as even one disease.

But now, a new study concludes that the debilitating condition may actually be two different diseases.

In addition, researchers say one subtype of RA may lead to poorer outcomes than the other.

Their research was published this week in the journal PLOS Medicine.

The study was conducted by Dr. Xanthe Matthijssen, a researcher at Leiden University Medical Center in the Netherlands, and her colleagues.

The scientists say there

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