Generation of an induced pluripotent stem cell line from patient with atrial fibrillation with KCNQ1 p.Ser209Pro mutation.

Gain-of-function mutations in the KCNQ1 gene can cause atrial fibrillation. In this study, we generated an induced stem cell line (GRCHJUi001) from one member of an atrial fibrillation family line, whom had heterozygous mutation in the KCNQ1 gene c.625 T > C (p.

Hypoxia-stimulated cardiac fibroblast production of IL-6 promotes myocardial fibrosis via the TGF-β1 signaling pathway.

Interlukin-6 (IL-6) is a multifunctional cytokine produced by several cell types that has a role in fibrosis. Fibroblasts (FBs) maintain this underlying pathogenic change through regulation of IL-6 production; however, its potential functional role in regulating surrounding cellular structural changes during ischemic myocardial remodeling remains unexplored. Here, we generated FBs, cardiomyocytes (CMs), and blood vascular endothelial cells (ECs) from the ventricles of neonatal rats.

CXCR6 deficiency attenuates pressure overload-induced monocytes migration and cardiac fibrosis through downregulating TNF-α-dependent MMP9 pathway.

An immerging role of TNF-α in collagen synthesis and cardiac fibrosis implies the significance of TNF-α production in the development of myocardial remodeling. Our previous study showed a reduction of TNF-α and attenuated cardiac remodeling in CXCR6 knockout (KO) mice after ischemia/reperfusion injury. However, the potential mechanism of TNF-α-mediated cardiac fibrosis with pressure overload has not been well elucidated.

[Construction and identification of mouse wildtype-syndecan-1 and unshedding-syndecan-1 expressing vector].

Aim: To construct the expressing vector pcDNA3.0- wildtype-syndecan-1(WT-sdc1) and pcDNA3.0-unshedding-syndecan-1(uS-sdc1), and to explore the expression in vitro.

[Value of deep small-bowel endoscopy in the diagnosis of Crohn's disease].

Objective: To evaluate the value of deep small-bowel endoscopy (DSBE) in the diagnosis of Crohns disease (CD).

Methods: The endoscopic and clinical data of 54 patients with CD receiving capsule endoscopy (CE) and double-balloon enteroscopy (DBE) between January, 2004 and December, 2008 were summarized and analyzed retrospectively.

Results: The main indications for DSBE in our series were suspected CD (42.

[Changes in the biological behaviors of colon cancer cells under simulated hypoxia in vitro].

Objective: To investigate the reactivity of colon cancer cell line SW480 and CD133(+) SW480 subsets to hypoxia in vitro and the changes in the expressions of anti-apoptosis and angiogenesis genes.

Methods: SW480 cells was subjected to CoCl(2) exposure at varying concentrations and for different time lengths to induce hypoxia, and the protein expression of hypoxia induced factor 1α (HIF-1α) was detected by Western blotting. The CD133(+) SW480 cells were sorted by magnetic activated cell sorting (MACS) and their proportion was assayed by flow cytometry (FCM).

[In vivo cardiac magnetic resonance imaging of superparamagnetic iron oxides-labeled mesenchymal stem cells in swines].

Objective: To explore the feasibility of magnetic resonance imaging (MR) on detecting transplanted nanometer small superparamagnetic iron oxides (SPIO) labeled mesenchymal stem cells (MSCs) in swine model with acute myocardial infarction (MI).

Methods: MSCs isolated from swine were incubated with nanometer SPIO for 24 hours and the third-passage MSCs were labeled with DNA dye 4'-6-diamidino-2-phenylindole (DAPI) and aliphatic red fluorescent dye PKH(26)-GL. Presence of small particles of SPIO in MSCs was assessed by Prussian Blue staining and electron microscopy.

[Observation on the safety: clinical trail on intracoronary autologous bone marrow mononuclear cells transplantation for acute myocardial infarction].

Objective: To investigate the safety of autologous bone marrow mononuclear cell (BM-MNCs) transplantation by intracoronary infusion in patients with acute myocardial infarction (AMI).

Methods: One hundred and eighty-four patients with AMI treated with percutaneous coronary intervention (PCI) were randomized in a 1:1 way to either intracoronary transplantation of autologous BM-MNCs (n = 92) right after PCI or to sodium chloride concluding heparin (controlled, n = 92) via a micro infusion catheter. In the process of the intracoronary infusion of BM-MNCs, the complications should be recorded, which were aberration reflect (including of pale, syncope, nausea, hypotension and shock), deterioration of angina or heart failure, arrhythmias (including of bradycardia, sinus arrest or atrial ventricular block or ventricular fibrillation), embolism etc.

[Long term follow-up on emergent intracoronary autologous bone marrow mononuclear cell transplantation for acute inferior-wall myocardial infarction].

Objective: To investigate the effects of emergent intracoronary autologous bone marrow mononuclear cell (BM-MNC) transplantation on left ventricular function and myocardium lesion area in patients with first acute inferior-wall myocardial infarction.

Methods: Forty patients with first onset of acute inferior-wall myocardial infarction, 28 males and 12 females, aged < or = 75, treated with emergent percutaneous coronary intervention (PCI) were randomly divided into 2 equal groups: group undergoing intracoronary transplantation of autologous BM-MNC via a micro-catheter right after PCI (BM-MNC group), and control group receiving normal saline and heparin. Blood routine examination, myocardium zymogram, and serum high sensitive C reactive protein (hsCRP) were detected, and 24-hour dynamic electrocardiography, delayed-enhancement myocardial magnetic resonance imaging (CMR), and angiography of the coronary artery and left ventricle were conducted before the transplantation and immediately, 1 week, and 6 months after transplantation.

[Transplantation of autologous bone marrow mononuclear cells on patients with idiopathic dilated cardiomyopathy: early results on effect and security].

Objective: The aim of this study is to identify short-term result of cell transplantation in idiopathic dilated cardiomyopathy (IDC) patients who were treated by intracoronary transplantation of autologous mononuclear bone marrow cells (BMCs) in addition to standard therapy.

Methods: Based on given standard therapy, eighteen patients with idiopathic dilated cardiomyopathy were enrolled and divided into transplantation group and control group. The clinical characteristics of two groups were comparable.

[The role of first pass and delayed contrast-enhancement magnetic resonance imaging in patients with myocardial infarction].

Objective: To evaluate the role of contrast-enhancement magnetic resonance imaging (CeMRI) in patients with myocardial infarction (MI).

Methods: There were twenty-three patients enrolled in this study. After dynamic observation, there were 20 patients who were diagnosed as MI.