In studies of twins at St. Thomas Hospital, London, King’s College researchers identified 163 biomarkers in blood that can indicate onset of osteoarthritis.  Further, they found that the ratios of valine to histidine and xleucine to histidine were particularly notable in revealing cartilage breakdown.  Authors of the resulting publication say that this is the first study using metabolomics to identify metabolic biomarkers for osteoarthritis.        MORE