Another eight pieces of genetic code linked to osteoarthritis discovered

British scientists have discovered another eight pieces of genetic code linked to osteoarthritis, bringing the total number to 11.

Inherited factors account for at least half of any individual’s chance of developing this common condition that affects the joints, experts believe.

And understanding these factors could offer up new treatments.

The research in The Lancet compared the DNA of 7,400 UK osteoarthritis patients with that of 11,000 healthy volunteers.

This allowed scientists to find the most promising “culprit” regions of the genetic code to study in more detail.

They repeated their work in another group of 7,500 people with osteoarthritis and about 43,000 individuals without the condition from Iceland, Estonia, the Netherlands, and the UK.

British scientists have discovered another eight pieces of genetic code linked to osteoarthritis, bringing the total number to 11

The results confirmed the three previously reported gene variants and found a further eight linked to osteoarthritis.

Further work is now needed to pinpoint the actual DNA changes within the genetic regions to establish exactly how these changes lead to osteoarthritis.

The one with the strongest effect was situated in the region of the GNL3 gene which produces a protein with an important role in cell maintenance.

Three others were in DNA regions involved in the regulation of cartilage, bone development and body weight.

One of the lead scientists, John Loughlin, who is professor of musculoskeletal research at Newcastle University, said: “We know that osteoarthritis runs in families and that this is due to the genes that people pass on, rather than their shared environment.

“In this study we were able to say with a high degree of confidence which genetic regions are the major risk factors for developing osteoarthritis: the first time that this has been possible for this common yet complex disease. It’s an important first step.”

Prof. Alan Silman, medical director of Arthritis Research UK, the charity that funded the work, said: “Until we understand the cause of this complex disease, we cannot hope to find a cure. This is a major breakthrough in our understanding of osteoarthritis, which we hope will help us to unlock the genetic basis of the disease.”

 

 

Kathryn R. Bown

Kathryn - Our health specialist likes to share with the readers the latest news from the field. Nobody understands better than her the relation between healthy mind and healthy body.

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