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- W4328143749 abstract "Abstract OBJECTIVES The role of extracellular matrix collagen biomarkers in chronic thromboembolic pulmonary hypertension (CTEPH) is not well known. Our goal was to investigate the matrix metalloproteinase (MMP)-2 and -9 protein levels in patients with CTETH. METHODS This is a prospective, cross-sectional study. Patients with CTETH who underwent pulmonary endarterectomy comprise group 1, and the control group included patients who underwent lung surgery without pulmonary hypertension (group 2) between March 2020 and March 2021. In addition to serum levels of MMP-9, the pulmonary endarterectomy and control pulmonary artery tissue samples were measured by the enzyme-linked immunosorbent assay 4pl, cubic, quadratic and Western blot techniques. Levels of MMP-2, which consist of pro MMP-2/ß-actin and active MMP-2/ß-actin and MMP-9/ß-actin, were measured only in the tissue samples. RESULTS Forty-eight patients were enrolled consecutively in group 1 (n: 24) and group 2 (n: 24). The serum concentrations of MMP-9 were similar in both groups. Similarly, a comparison of tissue sample levels of pro MMP-2/ß-actin (P = 0.496) and active MMP-2/ß-actin (P = 0.216) showed no significant difference between the groups. The tissue samples from patients with CTETH had significantly lower amounts of MMP-9/ß-actin compared to the control group (P = 0.001). CONCLUSIONS This study indicates that serum levels of extracellular matrix collagen biomarkers were similar in patients with CTETH who were candidates for surgery and in patients who had non-pulmonary hypertension who underwent lung surgery. Differences in levels of MMP-9/ß-actin in tissue samples may play a role in pulmonary vascular remodelling in operable patients." @default.
- W4328143749 created "2023-03-22" @default.
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- W4328143749 date "2023-03-22" @default.
- W4328143749 modified "2023-10-16" @default.
- W4328143749 title "Extracellular matrix collagen biomarker levels in patients who underwent pulmonary endarterectomy" @default.
- W4328143749 doi "https://doi.org/10.1093/ejcts/ezad106" @default.
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