Association of anti-CCP positivity with serum ferritin and DAS-28

Rheumatol Int. 2009 Dec;30(2):223-7. doi: 10.1007/s00296-009-0941-4.

Abstract

Antibodies to cyclic citrullinated peptides (anti-CCP) are highly specific for the diagnosis of rheumatoid arthritis (RA) with a marginal increased prediction of the disease. In this study, we aimed to investigate the relation of the presence of anti-CCP with clinical manifestations and disease activity in a cohort of RA patients. A total of 61 RA patients were included in this study. Data of disease-related parameters such as duration of disease, medications, degree of pain (visual analog scale, VAS), disease activity score 28 (DAS-28) and health assessment questionnaire (HAQ) were recorded. Laboratory workup included erythrocyte sedimentation rate (ESR), plasma C-reactive protein (CRP), rheumatoid factor (RF), anti-CCP, complete blood count and anemia parameters. Anti-CCP positivity was associated with higher scores of DAS-28, longer duration of morning stiffness, serum RF positivity and low levels of serum ferritin, while it was not associated with disease duration, VAS, HAQ, ESR, CRP and hemoglobin.

MeSH terms

  • Adult
  • Aged
  • Antirheumatic Agents / therapeutic use
  • Arthritis, Rheumatoid / blood
  • Arthritis, Rheumatoid / drug therapy
  • Arthritis, Rheumatoid / immunology*
  • Autoantibodies / blood*
  • Cohort Studies
  • Female
  • Ferritins / blood*
  • Humans
  • Male
  • Middle Aged
  • Pain Measurement
  • Peptides, Cyclic / immunology*
  • Rheumatoid Factor / blood
  • Severity of Illness Index*

Substances

  • Antirheumatic Agents
  • Autoantibodies
  • Peptides, Cyclic
  • cyclic citrullinated peptide
  • Ferritins
  • Rheumatoid Factor