Ziqing Wang , Qianqian Wang , Hao Xu, Haojie Zhang, Shaojun Ren, Yimin Sun, Junhua Ge , Jian Li
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引用次数: 0
Abstract
Background
Pulmonary hypertension (PH)-induced right heart failure (RHF) is a progressive syndrome characterized by right ventricular (RV) enlargement and dysfunction. This study aimed to investigate factors associated with PH-induced RHF, with a focus on the role of Dickkopf-1 (DKK1).
Method
Clinical data and serum samples were collected from healthy controls (n = 18), patients with PH (n = 29), and PH-RHF (n = 75). DKK1 expression was quantified in serum and RV tissue.
Results
Serum DKK1 levels were significantly elevated in PH and PH-RHF patients compared to controls (1396.36 ± 413.40 vs. 2502.51 ± 962.81 vs. 3798.33 ± 1936.17 pg/mL, P < 0.001). Higher DKK1 levels were associated with impaired RV function, reflected by reduced TAPSE (P = 0.025), lower TAPSE/sPAP ratio (P = 0.024), and elevated sPAP (P = 0.017). DKK1 also correlated with invasive hemodynamic parameters, including RVP (P = 0.006), mPAP (P < 0.001), PVR (P = 0.014), SVR (P = 0.003), CO (P = 0.023), and CI (P = 0.002). Experimental models demonstrated marked DKK1 upregulation in hypoxia-stimulated cardiomyocytes and in serum and RV tissue of monocrotaline-treated and PAB rats.
Conclusions
Elevated DKK1 levels are associated with worsening RV dysfunction in PH, suggesting a potential pathogenic role in PH-induced RHF. DKK1 may serve as a complementary biomarker and a potential therapeutic target in PH-related RHF.
期刊介绍:
The International Journal of Cardiology is devoted to cardiology in the broadest sense. Both basic research and clinical papers can be submitted. The journal serves the interest of both practicing clinicians and researchers.
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