Journal of Advances in Medical and Biomedical Research

en Correlation between Serum Levels of Calprotectin with Disease Activity in Rheumatoid Arthritis Patients Clinical Medicine Clinical Medicine مقاله پژوهشی Original Research Article Background and Objective: Rheumatoid arthritis (RA) is an autoimmune disease defined by chronic synovitis and progressive joint destruction. This study investigated calprotectin as a serological marker in the hope of establishing an adequate means of diagnosing RA and following up on patients. Materials and Methods: This cross-sectional study included 32 RA patients who were referred to the rheumatology clinic of Baqiyatallah Hospital (Tehran, Iran) from 2019 to 2020. clinical examinations and requested laboratory tests was performed. The final visit was placed after a year with the same method as the initial visit. Disease activity was assessed by Disease Activity Score 28 (DAS-28) for 28 joints which is assessable by ESR or CRP and data were analyzed by SPSS 20 version. Results: Changes over time were significant in both (P=0.00 and P=0.00), and a significant relationship was found between the quantitative scores of the two forms of DAS-28 (P<0.000). Calprotectin did not show any significant correlation with either form of the DAS-28 quantitatively. Ahead of logistic regression analysis on the after one-year C-reactive protein based DAS-28 data, patients with cured disease or low disease activity were combined into one group. Accordingly, calprotectin was able to predict RA activity level to some extent (P=0.06), though a more efficient prediction was achieved when erythrocyte sedimentation rate and calprotectin were applied together (P=0.03). Conclusion: ESR and calprotectin did not show good power in predicting disease activity individually but they could have significantly high prediction potency combined. Rheumatoid arthritis, Calprotectin, Disease activity 263 268 http://journal.zums.ac.ir/browse.php?a_code=A-10-6041-1&slc_lang=en&sid=1 Gholam Hossein Alishiri ghalishiri@gmail.com 5200319475328460073495 5200319475328460073495 No Dept. of Rheumatology, Faculty of Medicine, Baqiyatallah University of Medical Sciences, Tehran, Iran Ramezan Ali Ataee ataee@bmsu.ac.ir 5200319475328460073496 5200319475328460073496 No Dept. of Medical Microbiology, Faculty of Medicine, Baqiyatallah University of Medical Sciences, Tehran, Iran Mahsa Ramezanpour Ramezanpour.mahsa@yahoo.com 5200319475328460073497 5200319475328460073497 No Dept.of Obstetrics and Gynecology, Shiraz University of Medical Sciences, Shiraz, Iran Danial Chaleshi Danialchaleshi1375@gmail.com 5200319475328460073498 5200319475328460073498 No Student Research Committee, Shahid Sadoughi University of Medical Sciences, Yazd, Iran Ehsan Rahmanian drrahmanianehsan@yahoo.com 5200319475328460073499 5200319475328460073499 Yes Dept.of Rheumatology, School of Hormozgan University of Medical Sciences, Bandar-e Abbas, Iran