Journal
EUROPEAN JOURNAL OF PHARMACOLOGY
Volume 761, Issue -, Pages 273-278Publisher
ELSEVIER
DOI: 10.1016/j.ejphar.2015.06.014
Keywords
Rheumatoid arthritis; Menaquinone-7; DAS28-ESR; ucOC; Matrix metalloproteinase
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Funding
- Assiut University Hospitals
- Taibah University [4121/434]
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Menaquinones (MKs) have been reported to induce apoptosis in rheumatoid arthritis (RA) synovial cells. Recently, menaquinone-4 (MK-4) was proven as a new potential agent for the treatment of RA. However, menaquinone-7 (MK-7) has greater bioavailability and efficacy than MK-4 after oral administration. Yet, the therapeutic benefits of MK-7 in the management of patients with RA have never been addressed. This study was designed to clarify the therapeutic role of MK-7 added to normal therapeutic regimen of RA in patients with different stages of the disease with a clinical follow up through a randomized clinical trial. In a cross sectional study, 84 RA patients (24 male, 60 female) (average age =47.2 years) were enrolled in this study. The patients were divided into MK-7 treated group (n=42) and MK-7 naive group (n=42). MK-7 capsules were administered in a close of 100 rig/clay for three months in the first group without changing in other medications. The clinical and biochemical markers on RA patients treated with MR -7 and naive group were assessed. In MK -7 treated group, serum concentrations of MK -7 were monitored before and after three months of MK -7 administration. In the cross sectional study, a significant decrease in MK -7 treated group for the levels of undercarboxylated osteocalcin (uc0C), erythrocyte sedimentation rate (ESR), disease activity score assessing 28 joints with ESR (DAS28-ESR), C-reactive protein (CRP) and matrix metalloproteinase (MMP-3) was found. In MR -7 treated group, a marked decrease in RA clinical and biochemical markers for moderate and good response compared to non responders was observed in ESR and DAS28-ESR. A marked increase in the levels of MK -7 for the moderate and good responders compared to nun responders was observed. The results suggest that MR -7 improves disease activity in RA patients. Therefore, MR -7 represents a new promising agent for RA in combination therapy vvith other disease modifying antirheurnatic drugs. (C) 2015 Elsevier B.V. All rights reserved
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