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Erre GL, Chessa I, Bassu S, Cavagna L, Carru C, Pintus G, Giordo R, Mangoni AA, Damiano Sanna G, Zinellu A. Association between ischemia-modified albumin (IMA) and peripheral endothelial dysfunction in rheumatoid arthritis patients. Sci Rep 2024; 14:3964. [PMID: 38368495 PMCID: PMC10874370 DOI: 10.1038/s41598-024-54641-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/23/2023] [Accepted: 02/14/2024] [Indexed: 02/19/2024] Open
Abstract
The identification of circulating biomarkers of endothelial dysfunction (ED), a precursor to atherosclerosis, in rheumatoid arthritis (RA) would facilitate early risk stratification and prevention strategies. Ischemia-modified albumin (IMA) has emerged as a potential biomarker of oxidative stress, ischemia, and ED. However, studies examining the relationship between IMA and ED in RA patients are lacking. We measured serum IMA concentrations by using an albumin cobalt binding test and peripheral vasodilatory capacity by EndoPAT in 113 RA patients without previous cardiovascular events enrolled in the EDRA study (ClinicalTrials.gov: NCT02341066). The mean peripheral vasodilatory capacity, expressed by the log of reactive hyperemia index (logRHI), was 0.82, corresponding to 27% RA patients having ED. The mean plasma concentrations of IMA were 0.478 absorbance units. We observed a significant and inverse association between peripheral vasodilatory capacity and serum IMA concentrations (rho = - 0.22, p = 0.02). In univariate logistic regression, ED was significantly associated with serum IMA concentrations [OR 1173 (95% CI 1.3568 to 101,364), p = 0.040) and higher disease activity. In multivariate logistic regression, the independent association between ED and IMA remained significant after correction for disease activity and other RA-confounders [OR 2252 (95% CI 1.0596 to 4,787,505), p = 0.048 in Model 1; OR 7221 (95% CI 4.1539 to 12,552,859), p = 0.02 in Model 2]. Conclusions: This study suggests that IMA is a promising biomarker of ED in RA. Further research is needed to confirm our findings and determine the clinical utility of IMA in detecting and managing early atherosclerosis in RA patients.
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Affiliation(s)
- Gian Luca Erre
- Dipartimento di Medicina, Chirurgia e Farmacia, University of Sassari, Sassari, Italy.
- UO Reumatologia, Azienda Ospedaliero-Universitaria di Sassari, Sassari, Italy.
| | - Ilaria Chessa
- Dipartimento di Scienze Biomediche, University of Sassari, Sassari, Italy
| | - Stefania Bassu
- Dipartimento di Scienze Biomediche, University of Sassari, Sassari, Italy
| | - Lorenzo Cavagna
- Rheumatology Division, University and IRCCS Policlinico S. Matteo Foundation, Pavia, Italy
| | - Ciriaco Carru
- Dipartimento di Scienze Biomediche, University of Sassari, Sassari, Italy
| | - Gianfranco Pintus
- Dipartimento di Scienze Biomediche, University of Sassari, Sassari, Italy
| | - Roberta Giordo
- Dipartimento di Scienze Biomediche, University of Sassari, Sassari, Italy
| | - Arduino Aleksander Mangoni
- Discipline of Clinical Pharmacology, College of Medicine and Public Health, Flinders University, Adelaide, Australia
- Department of Clinical Pharmacology, Flinders Medical Centre, Southern Adelaide Local Health Network, Adelaide, Australia
| | | | - Angelo Zinellu
- UO Reumatologia, Azienda Ospedaliero-Universitaria di Sassari, Sassari, Italy
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