Publications by authors named "Ji-fei Tang"

Rationale: Depression is associated with coronary artery disease and increases adverse outcomes and mortality in patients with acute myocardial infarction, but the underlying pathophysiological mechanisms remain unclear.

Objective: To evaluate the effect of macrophage migration inhibitory factor (MIF) on cardiac ischemia-reperfusion (I/R) injury in mice with constant darkness-induced depression.

Methods And Results: Twenty C57BL/6 mice (8 weeks old, male) were randomly divided into 2 groups: one group was housed in a 12h light/dark cycle environment (LD) and the other in a constant darkness environment (DD).

View Article and Find Full Text PDF

Background: We analyzed the relationship of -794 CATT5-8 MIF polymorphisms with soluble MIF in Coronary Atherosclerotic Disease (CAD) patients.

Methods: A total of 256 patients selected, on which 186 normal-coronary and 70 Coronary artery disease subjects, were recruited in the study (Retrospectively registered). Genotyping of -794 CATT5-8 polymorphisms were performed by PCR and DNA sequencing.

View Article and Find Full Text PDF

Dyslipidemia increases the risks for atherosclerosis in part by impairing endothelial integrity. Endothelial progenitor cells (EPCs) are thought to contribute to endothelial recovery after arterial injury. Oxidized low-density lipoprotein (ox-LDL) can induce EPC dysfunction, but the underlying mechanism is not well understood.

View Article and Find Full Text PDF

Increased delay in visiting a hospital for patients with ST-segment elevation myocardial infarction (STEMI) is often associated with poor outcomes. The factors associated with the decision time were analyzed by comparing the characteristics of patients with delays longer or shorter than the median of 60 min. Pre-hospital delay tended to be longer for patients living in suburban areas compared to those in urban areas (P=0.

View Article and Find Full Text PDF

Intradialytic hypotension (IDH) is a global public health problem. A rising number of IDH sufferers resort to Chinese patent medicine, Shengmai Injection (SMI) in China. The objectives of present study are to assess the effectiveness and safety of SMI as an adjunct therapy for IDH.

View Article and Find Full Text PDF

Objective: To explore the relationship between genetic polymorphisms of CACNA1C that encoded the a1c subunit of the L-type calcium channel and the efficacy of calcium channel blocker (CCB, Nifedipine extended release tablet/20 mg/d) in essential hypertension (EH) patients of Han Chinese in Wenzhou.

Methods: For the enrolled 103 EH patients, Multiplex Polymerase Chain Reaction (Multi-PCR) and matrix assisted laser desorption ionization time of flight MS (MLDI-TOF MS) were performed to detect their genotypes (rs216008, rs1051375, rs2299661, rs10848683, rs215976), blood pressure (BP) after CCB monotherapy was compared among patients with different genotypes.

Results: (1) Blood pressure was significantly reduced in all patients post CCB (P < 0.

View Article and Find Full Text PDF

Objective: To observe the effect of astragaloside on oxidative low-density lipoprotein (Ox-LDL) mediated oxidative damage of endothelial progenitor cells (EPCs).

Methods: Peripheral blood mononuclear cells(PBMCs) were isolated by Ficoll density gradient centrifugation, and EPCs were identified by flow cytometry. Adherent cells were collected after seven-day incubation and randomly divided into the normal control group, the Ox-LDL group (as the model group, at the dose of 100 microg/mL), the low, middle, and high astragaloside groups (with 100 microg/mL Ox-LDL plus 2, 10, and 50 microg/mL astragaloside).

View Article and Find Full Text PDF

Background: RFCA has been established as an effective and curative therapy for severely symptomatic PVC from the outflow tract in structurally normal hearts. However, it is unknown whether PVCs originating from the left ventricular septum, are effectively eliminated by RFCA. This study aimed to investigate electrophysiologic characteristics and effects of radiofrequency catheter ablation (RFCA) for patients with symptomatic premature ventricular contraction (PVC) originating from the left ventricular septum without including fascicular PVCs.

View Article and Find Full Text PDF

This case report describes idiopathic ventricular tachycardia (VT) originating from the anterolateral site of mitral annulus. Radiofrequency (RF) energy application at an endocardial site of mitral annulus could not eliminate the tachycardia. The earliest epicardial activation preceding the onset of the QRS complex by 34 ms was found at the great anterior cardiac vein just opposite to the endocardial ablation catheter, pace mapping provided an identical (12/12) match with the VT morphology at the site, and RF ablation effectively eliminated the VT from the great cardiac vein within the coronary venous system.

View Article and Find Full Text PDF

We report a case of atrioventricular nodal reentrant tachycardia (AVNRT) coexistent with His bundle anomaly and atrial septal defects. The His-bundle potential was recorded at the coronary sinus (CS) ostium. Fractionated atrial potentials and an A:V electrogram ratio 1:3 were recorded at the anterior septum of the tricuspid annulus approximately 2 cm from CS ostium.

View Article and Find Full Text PDF

In this study, we examined the protective effects of Danshen both on endothelial progenitor cells (EPCs) in patients with hypercholesterolemia and on in-vitro EPCs of healthy volunteers. In the clinical study, we randomly divided 24 subjects with hypercholesterolemia into two groups (the control group and the Danshen-treated group). At the end of two weeks of treatment, the EPC cellular functions of both groups were tested.

View Article and Find Full Text PDF
Article Synopsis
  • - The study developed a new canine model using Beagle dogs to investigate cardiac memory through endocardial ventricular pacing via the internal jugular vein.
  • - Out of 12 dogs, 11 successfully exhibited cardiac memory, with the T-wave memory lasting approximately 96 minutes in the short term and up to 31 days in the long term; however, there was one procedural mortality due to complications.
  • - This new model is less invasive compared to traditional open-chest methods, making it a valuable tool for further research into the mechanisms of cardiac memory.
View Article and Find Full Text PDF

Oxidative stress has been implicated in the pathogenesis of acute myocarditis. The imbalance between the occurrence of reactive oxygen species and the cellular antioxidant defense mechanism plays a key role in myocardial injury of viral myocarditis. Carvedilol, a nonselective beta-adrenoceptor antagonist with additional alpha1-adrenergic blocking and antioxidant properties, has been shown to be cardioprotective in experimental myocarditis.

View Article and Find Full Text PDF

Parkinson's disease (PD) is one of the most common neurodegenerative disorders and still remains incurable. New targets for potential pharmacological intervention should be explored and evaluated in order to slow down, delay or reverse the progress of this disease, and/or to avoid the serious side effects of levodopa praeparatum. Potassium (K+) channels widely express in basal ganglia and play crucial roles in the pathophysiology of PD, thereby raising their therapeutic application.

View Article and Find Full Text PDF

Purpose: To evaluate neovascularization within carotid atherosclerotic plaques with contrast-enhanced sonography.

Methods: We used contrast-enhanced sonography to examine 63 patients with carotid atherosclerotic plaques. The features of neovascularization within the plaques were analyzed and correlated with plaque size and echogenicity.

View Article and Find Full Text PDF

Carvedilol, a nonselective beta-blocker with additional alpha1-adrenergic blocking and antioxidant properties, has been shown to be cardioprotective in experimental myocarditis. However, the antioxidative effects of carvedilol have not been investigated in the setting of acute viral myocarditis. Therefore, this study investigated whether carvedilol protects against viral myocarditis primarily by its antioxidant and/or antiinflammatory properties.

View Article and Find Full Text PDF

Objective: To investigate the effects of Danshen on number and activity of endothelial progenitor cells (EPCs) of patients with Hypercholesterolemia.

Method: 24 patients with Hypercholesterolemia were randomLy divided into 2 groups: control group (n = 12), and treatment group (n = 12, receiving Composite Denshen Pilulae, 10# tid for 2 weeks). after 2 weeks, 20 mL peripheral blood was obtained from each patient, Mononuclear fraction of human peripheral blood was obtained by density gradient centrifugation, plated on fibronectin coated culture dishes.

View Article and Find Full Text PDF