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Drug Discov Ther. 2019;13(1):22-27. doi: 10.5582/ddt.2019.01011.

Study of correlation of level of expression of Wnt signaling pathway inhibitors sclerostin and dickkopf-1 with disease activity and severity in rheumatoid arthritis patients.

Author information

1
Department of Geriatric Medicine, Institute of Medical Sciences, Banaras Hindu University.
2
Department of General Medicine, Institute of Medical Sciences, Banaras Hindu University.
3
Department of Biochemistry, Institute of Medical Sciences, Banaras Hindu University.

Abstract

This study was done with aim to assess the serum sclerostin and dickkopf-1 (DKK-1) level in patients of rheumatoid arthritis (RA) and to correlate their level with disease activity and bone mineral density. Fifty patients of RA and equal age and sex matched healthy controls were included in the study. Patients were evaluated clinically and investigated with routine blood tests along with rheumatoid factor (RF), anti-citrullinated protein antibody (anti-CCP2), radiographs and bone mineral density (BMD). Serum sclerostin and DKK-1 levels of both cases and controls was assayed by using enzyme-linked immunosorbent assay (ELISA) assay [RayBio®, Georgia, USA with coefficient of variation percent (CV %), < 10%] and compared with disease activity and bone mineral density. Disease activity was measured by Disease Activity Score 28 (DAS28) along with Modified Health Assessment Questionnaire (MHAQ) score. Mean serum sclerostin and DKK-1 was significantly higher in study group as compared to control group. Serum sclerostin showed significant correlation with disease activity scores (DAS score and MHAQ score), erythrocyte sedimentation rate (ESR) and C-reactive protein (CRP) level. Serum sclerostin at level of 394 pg/mL was found to have diagnostic significance with sensitivity of 100% and specificity of 90%. DKK-1 level shows significantly positive correlation with larson score which denotes radiological progression (r value 0.468; p value 0.001). More studies with larger sample size of RA patients are needed for better determination of the role of sclerostin and DKK-1 in RA. Also, the correlation of these and other bone turn over markers will help decipher their role with disease progression in RA patients.

KEYWORDS:

C-reactive protein; Sclerostin; dikkopf 1; rheumatoid arthritis

PMID:
30880318
DOI:
10.5582/ddt.2019.01011
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