Metabolic Profiling Using Reversed Phase High Performance Liquid Chromatography: Analysis of Urine from Patients with Rheumatoid Arthritis

Metabolomics: an integral technique in systems biology

Metabolomics is the unbiased identification and state-specific quantification of all metabolites in a cell, tissue or whole organism, and has developed rapidly into one of the cornerstones of postgenomic techniques for the quantitative analysis of molecular phenotypes. These large-scale analyses of metabolites are intimately bound to advancements in MS technologies and have emerged in parallel with the development of novel mass analyzers and hyphenated techniques, as well as with the combination of different techniques to cope with the physicochemical diversity of a metabolome. This review gives a brief description of the development and applications of these technologies in biochemistry and systems biology, and discusses their significance in the postgenomic era. Especially, the systematic relation between high-throughput metabolomic data and their interpretation with respect to the underlying biochemical regulatory network is discussed.

Determination of larger urinary peptides in osteoarthrosis by high-performance liquid chromatography

Urinary peptides larger than 4000 were fractionated by HPLC on reversed phase. Urines of osteoarthrotic patients were compared with those of healthy persons and rheumatoid patients. The profile of urinary peptides of patients with mild form of osteoarthrosis differed significantly from that of other groups studied. The results of patients with rheumatoid arthritis were similar to those of patients with activated or severe form of osteoarthrosis.