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|Title:||Value of soluble Urokinase plasminogen activator receptor over age as a biomarker of impaired myocardial relaxation||Authors:||Koh A.S.
receiver operating characteristic
Predictive Value of Tests
Receptors, Urokinase Plasminogen Activator
|Issue Date:||2017||Citation:||Koh A.S., Velmurugan B., Gao F., Tan R.S., Wong J.-I., Teo L.L.Y., Keng B.M.H., Chua S.J.M., Yuan J.-M., Koh W.-P., Cheung C. (2017). Value of soluble Urokinase plasminogen activator receptor over age as a biomarker of impaired myocardial relaxation. BMC Geriatrics 17 (1) : 275. ScholarBank@NUS Repository. https://doi.org/10.1186/s12877-017-0668-0||Abstract:||Background: SuPAR is a biomarker that reflects the level of immune activation. As inflammation plays an important role in the ageing process of the cardiovascular system, we hypothesized that suPAR might be a useful predictive biomarker of the ageing heart. Methods: We performed conventional and tissue Doppler echocardiography and measured plasma suPAR levels. Results: We studied community adults (n=120, 37.5% female) (mean age: 70.3±9.3 years) without known cardiovascular disease (CVD). Participants with impaired myocardial relaxation were older (84% vs 59% were aged ?71 years, p=0.002), with more diabetes mellitus (27% vs 11%, p=0.034). SuPAR levels were higher among participants with impaired myocardial relaxation (3.9 ng/ml vs 3.0 ng/ml, p=0.015). At the univariate level, older age (OR 3.6; 95%CI 1.6, 8.5; p=0.003), diabetes mellitus (OR 3.04; 95%CI 1.1, 8.8; p=0.04), systolic blood pressure (OR 1.03; 95%CI 1.001, 1.1; p=0.041) and suPAR levels ?3.00ng/ml (OR 3.4; 95%CI 1.16, 7.4; p=0.002) were associated with impaired myocardial relaxation. In multivariable regression analysis, only older age (OR 2.8; 95%CI 1.1, 6.7; p=0.026) and suPAR (OR 2.7; 95%CI 1.2, 6.1; p=0.018) remained independently associated with impaired myocardial relaxation. Receiver operating characteristics (ROC) curve analysis revealed an area under the curve (AUC) value of 0.63 (95% CI 0.54, 0.71) for model that included age alone. Addition of suPAR significantly increased AUC value to 0.70 (95%CI 0.60, 0.79), which was significantly larger than the model with age alone (p=0.016). Conclusion: We demonstrate additional ability of suPAR, over age, to predict impaired myocardial relaxation. Trial registration: ClinicalTrials.gov Identifier: NCT02791139 (Registered May 31, 2016). © 2017 The Author(s).||Source Title:||BMC Geriatrics||URI:||https://scholarbank.nus.edu.sg/handle/10635/175414||ISSN:||1471-2318||DOI:||10.1186/s12877-017-0668-0|
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