title: Cytidine deaminase activity, C reactive protein, histidine, and erythrocyte sedimentation rate as measures of disease activity in psoriatic arthritis.
abstract: Cytidine deaminase activity, C reactive protein, histidine, and erythrocyte sedimentation rate were measured in 36 subjects with psoriatic arthritis of varying disease duration and severity. Although cytidine deaminase activity may provide an integrated measure of synovial inflammation in rheumatoid arthritis, neutrophil accumulation in psoriatic plaques compromises this measure in psoriatic arthritis. Low histidine concentrations confirm that this amino acid provides a non-specific index of synovial inflammation. In psoriatic arthritis high C reactive protein concentrations seem to be associated with extensive joint destruction. In this study the erythrocyte sedimentation rate was found to be the best laboratory guide to clinical disease activity in psoriatic arthritis.
authors.affiliation: University Department of Medicine, General Infirmary, Leeds.
authors.forename: P S
authors.initials: PS
authors.lastname: Helliwell
authors.forename: A
authors.initials: A
authors.lastname: Marchesoni
authors.forename: M
authors.initials: M
authors.lastname: Peters
authors.forename: R
authors.initials: R
authors.lastname: Platt
authors.forename: V
authors.initials: V
authors.lastname: Wright
mesh_terms: D000328:Adult; D000368:Aged; D015535:Arthritis, Psoriatic / Q000097:blood* / Q000201:enzymology; D015415:Biomarkers; D001799:Blood Sedimentation; D002097:C-Reactive Protein / Q000378:metabolism*; D003564:Cytidine Deaminase / Q000378:metabolism*; D005260:Female; D006639:Histidine / Q000378:metabolism*; D006801:Humans; D008297:Male; D008875:Middle Aged; D013122:Spinal Diseases / Q000097:blood / Q000201:enzymology
chemical_list: D015415:Biomarkers; D006639:Histidine; D002097:C-Reactive Protein; D003564:Cytidine Deaminase