Featured Research

from universities, journals, and other organizations

Potential new test for early diagnosis of osteoarthritis identified

Date:
April 23, 2010
Source:
King's College London
Summary:
Researchers have discovered new ways of measuring biological markers in the blood which could be used to diagnose osteoarthritis earlier. The new biochemical test called metabolomics allows the scientists to test for 163 chemical signals at the same time from a single blood sample.

Researchers at King's College London's Department of Twin Research and Genetic Epidemiology, based at St Thomas' Hospital have discovered new ways of measuring biological markers in the blood which could be used to diagnose osteoarthritis earlier.

Osteoarthritis is a condition that affects the joints and is the most common type of arthritis in the UK. It mostly occurs in the knees, hips and small joints of the hands, but almost any joint can be affected.

The new biochemical test called metabolomics allows the scientists to test for 163 chemical signals at the same time from a single blood sample. These chemical signals are intermediate products of the metabolism of human cells and their 26,000 metabolite ratios represent the rate of the chemical reactions in the human body.

The team first studied 123 white women with osteoarthritis of the knee and 299 healthy women from the Twins UK register, comparing the difference in the metabolites and the 26,000 metabolite ratios between the two groups. They found that 14 metabolite ratios were significantly associated with osteoarthritis. The team then tested these signals to see if they were replicated in an independent sample consisting of 76 women with knee arthritis and 100 healthy women. Two ratios -- valine to histidine and xleucine to histidine -- were successfully confirmed in the replication sample.

Dr Guangju Zhai, lead author on the paper published in the journal, Annals of Rheumatic Diseases, said: "Osteoarthritis affects an estimated 8.5 million people in the UK and one of its main characteristics is damage to cartilage, the strong smooth muscle that lines the bones and allows joints to move easily and without friction. The search for biomarkers, or traits, which can be used to measure or indicate the effects or progress of a condition is a hugely exciting area of clinical research. The two novel metabolic biomarkers found through our study could indicate increased cartilage breakdown and we now want to study these mechanisms in more detail."

Professor Tim Spector, senior author of the paper added: "Ours is the first study using a metabolomics approach to identify novel metabolic biomarkers for osteoarthritis. We hope that further research will lead to these two metabolite ratios being adopted into clinical practice, enabling doctors to diagnose the condition, or identify that osteoarthritis is developing, earlier. Our study also shows the enormous clinical potential of metabolomics, and we hope in future that they could be used to monitor the effectiveness of treatments. At the moment we relay on x-rays and scans -- and our dependence on these methods is a major obstacle to the development of new drugs for osteoarthritis."

Research studies such as this underpin King's Health Partners Academic Health Sciences Centre, a pioneering collaboration between King's College London, and Guy's and St Thomas', King's College Hospital and South London and Maudsley NHS Foundation Trusts which aims to deliver medical breakthroughs to patients at the earliest opportunity.

The study was funded by the European Community Framework 7 large collaborative project grant Treat-OA, The Wellcome Trust, and Arthritis Research UK. It also received support from the NIHR comprehensive Biomedical Research Centre at Guy's and St Thomas' NHS Foundation Trust and King's College London.


Story Source:

The above story is based on materials provided by King's College London. Note: Materials may be edited for content and length.


Journal Reference:

  1. G. Zhai, R. Wang-Sattler, D. J. Hart, N. K. Arden, A. J. Hakim, T. Illig, T. D. Spector. Serum branched-chain amino acid to histidine ratio: a novel metabolomic biomarker of knee osteoarthritis. Annals of the Rheumatic Diseases, 2010; DOI: 10.1136/ard.2009.120857

Cite This Page:

King's College London. "Potential new test for early diagnosis of osteoarthritis identified." ScienceDaily. ScienceDaily, 23 April 2010. <www.sciencedaily.com/releases/2010/04/100422102946.htm>.
King's College London. (2010, April 23). Potential new test for early diagnosis of osteoarthritis identified. ScienceDaily. Retrieved April 24, 2014 from www.sciencedaily.com/releases/2010/04/100422102946.htm
King's College London. "Potential new test for early diagnosis of osteoarthritis identified." ScienceDaily. www.sciencedaily.com/releases/2010/04/100422102946.htm (accessed April 24, 2014).

Share This



More Health & Medicine News

Thursday, April 24, 2014

Featured Research

from universities, journals, and other organizations


Featured Videos

from AP, Reuters, AFP, and other news services

Deadly Fungus Killing Bats, Spreading in US

Deadly Fungus Killing Bats, Spreading in US

AP (Apr. 24, 2014) A disease that has killed more than six million cave-dwelling bats in the United States is on the move and wildlife biologists are worried. White Nose Syndrome, discovered in New York in 2006, has now spread to 25 states. (April 24) Video provided by AP
Powered by NewsLook.com
Companies Ramp Up Wellness to Lower Health Costs

Companies Ramp Up Wellness to Lower Health Costs

AP (Apr. 24, 2014) That little voice telling you to exercise, get in shape and get healthy is probably coming from your boss. More companies are beefing up wellness programs to try and cut down their health care costs. (April 24) Video provided by AP
Powered by NewsLook.com
Blood From World's Oldest Woman Suggests Life Limit

Blood From World's Oldest Woman Suggests Life Limit

Newsy (Apr. 24, 2014) Scientists say for the extremely elderly, their stem cells might reach a state of exhaustion. This could limit one's life span. Video provided by Newsy
Powered by NewsLook.com
FDA Wants To Ban Sales Of E-Cigarettes To Minors

FDA Wants To Ban Sales Of E-Cigarettes To Minors

Newsy (Apr. 24, 2014) The Food and Drug Administration wants to crack down on the use of e-cigarettes, banning the sale of the product to minors. Video provided by Newsy
Powered by NewsLook.com

Search ScienceDaily

Number of stories in archives: 140,361

Find with keyword(s):
Enter a keyword or phrase to search ScienceDaily for related topics and research stories.

Save/Print:
Share:

Breaking News:
from the past week

In Other News

... from NewsDaily.com

Science News

Health News

Environment News

Technology News



Save/Print:
Share:

Free Subscriptions


Get the latest science news with ScienceDaily's free email newsletters, updated daily and weekly. Or view hourly updated newsfeeds in your RSS reader:

Get Social & Mobile


Keep up to date with the latest news from ScienceDaily via social networks and mobile apps:

Have Feedback?


Tell us what you think of ScienceDaily -- we welcome both positive and negative comments. Have any problems using the site? Questions?
Mobile: iPhone Android Web
Follow: Facebook Twitter Google+
Subscribe: RSS Feeds Email Newsletters
Latest Headlines Health & Medicine Mind & Brain Space & Time Matter & Energy Computers & Math Plants & Animals Earth & Climate Fossils & Ruins