RESEARCH ARTICLE


Serum Level of Endothelial Cell-Specific Molecule -1 (ESM -1) as a New Potential Biomarker for Rheumatoid Arthritis Disease Activity



Noha Abdelsalam1, Ashraf Hussein Mohamed2, *, Sameh Abdellatif 3, Eslam Eid2, Ehsan Mohamed Rizk4, Mohamed Anies Rizk5
1 Lecturer of Internal Medicine, Mansoura University, Mansoura, Egypt
2 Assistant professor of Internal Medicine, Mansoura University, Mansoura, Egypt
3 Assistant professor of Rheumatology and Rehabilitation, Al-Azhar University, Cairo, Egypt
4 Assistant professor of Clinical Pathology, Mansoura University, Mansoura, Egypt
5 Lecturer of Clinical Pathology, Mansoura University, Mansoura, Egypt


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© 2018 Abdelsalam et al.

open-access license: This is an open access article distributed under the terms of the Creative Commons Attribution 4.0 International Public License (CC-BY 4.0), a copy of which is available at: (https://creativecommons.org/licenses/by/4.0/legalcode). This license permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.

* Address correspondence to this author at the Internal Medicine, Mansoura University, Mansoura, Egypt, Tel: 00201150584474; E-mail: mashraf2011@yahoo.com


Abstract

Background:

Rheumatoid arthritis is a chronic inflammatory autoimmune disease characterized by destruction of the joint cartilage and bone. Endothelial dysfunction (ED) in RA may be related to disease activity. Our objective is to explore serum levels of endothelial cell-specific molecule-1 (ESM-1) as a biomarker for RA disease activity.

Methods:

A cross-sectional study was carried out and included 83 adult patients with RA, in addition to 20 healthy subjects (age and sex-matched) as a control group. Based on Disease Activity Score in 28 joints (DAS-28), the patient's group was subdivided into four subgroups(remission, mild, moderate and severe disease activity state). The demographic & clinical data, BMI, DAS-28 and Serological assessment [Erythrocyte Sedimentation Rate (ESR), CRP, Rheumatoid Factor (RF) and Anti-Citrullinated Peptide Antibody (ACPA)] were recorded. ESM-1was assayed for all participants.

Results:

Serum levels of ESM1 were significantly higher in the patient group than the control group (P < 0.0001). ESM-1 serum levels were significantly higher in patients with severe disease activity subgroup compared with patients with remission and mild disease activity subgroups (P < 0.0001). ESM-1 was positively and significantly correlated with DAS-28 score, The Health Assessment Questionnaire Disability Index (HAQ-DI) and modified Larsen score (P = 0.002, 0.0001 & 0.0001 respectively).

Conclusion:

ESM-1 could be a biomarker for RA disease activity.

Keywords: Biomarker, ESM-1, Disease activity, RA, RF, ESR.