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Bacteria in milk may trigger rheumatoid arthritis

Bacteria in milk may trigger rheumatoid arthritis

Sentinel Digital DeskBy : Sentinel Digital Desk

  |  1 Feb 2018 12:00 AM GMT

New York, Jan 31: Researchers have found that a strain of bacteria commonly found in milk may be a trigger for developing rheumatoid arthritis in people who are genetically at risk.

Rheumatoid arthritis is an autoimmune and inflammatory disease that causes the immune system to attack a person’s joints, muscles, bones and organs.

Patients suffer from pain and deformities mostly in the hands and feet. It can occur at any age but the most common onset is between 40 and 60 years old and is three times more prevalent in women. The study showed a link between rheumatoid arthritis and Mycobacterium avium subspecies paratuberculosis, known as MAP. Humans can contract the bacteria through the consumption of infected milk, beef and produce fertilised by cow manure. “We don’t know the cause of rheumatoid arthritis, so we’re excited that we have found this association,” said one of the researchers Shazia Beg from the University of Central Florida (UCF) in the US.

The study involve 100 of her patients who volunteered clinical samples for testing. Nearly 80 per cent of the patients with rheumatoid arthritis were found to have a mutation in the PTPN2/22 gene, and 40 per cent of that number tested positive for MAP. “We believe that individuals born with this genetic mutation and who are later exposed to MAP through consuming contamited milk or meat from infected cattle are at a higher risk of developing rheumatoid arthritis,” said Saleh ser, an infectious disease specialist at UCF. (IANS)

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