is a protozoan that parasitizes the intestines. A number of hosts of have been found, including human and animals. However, there has been no research on the prevalence of in Tibetan antelope.
View Article and Find Full Text PDFFront Cell Infect Microbiol
October 2021
is an enteric parasite, which can infect multiple mammals including livestock and wildlife. Tibetan Antelope () is one of the most famous wildlife species, that belongs to the first class protected wild animals in China. However, it has not been known whether Tibetan Antelope is infected with so far.
View Article and Find Full Text PDFBrucellosis and Toxoplasmosis are important zoonotic diseases, and Neospora caninum is a parasite causing disease in cattle and other animals. Brucella spp. and N.
View Article and Find Full Text PDFBackground: Endothelial dysfunction is the pathophysiological characteristic of pulmonary arterial hypertension (PAH). Some paracrine factors secreted by bone marrow-derived endothelial progenitor cells (BMEPCs) have the potential to strengthen endothelial integrity and function. This study investigated whether BMEPCs have the therapeutic potential to improve monocrotaline (MCT)-induced PAH via producing vasoprotective substances in a paracrine fashion.
View Article and Find Full Text PDFZhejiang Da Xue Xue Bao Yi Xue Ban
November 2011
Objective: To determine the effect of proton pump inhibitor (PPI) on in-stent restenosis (ISR) in patients receiving clopidogrel therapy.
Methods: Total 439 patients underwent percutaneous coronary intervention (PCI) were enrolled in the study,including 250 post-PCI patients discharged on clopidogrel alone and 189 patients discharged on clopidogrel with PPI. The in-stent restenosis (ISR) ratio of the patients in these two groups were observed.
Endothelial injury usually underlies the initial pathologic step of cardiovascular diseases. Primary endothelial cell (EC) apoptosis and secondary hyperproliferation both contribute to the development of atherosclerosis and luminal occlusion. In order to investigate the effects of resveratrol (RSV) on EC apoptosis, we applied high shear stress (HSS) with proinflammatory factors [tumor necrosis factor alpha (TNF-α) plus cycloheximide] to human pulmonary microvascular ECs (PMVECs) through an artificial capillary system.
View Article and Find Full Text PDFTo investigate the influence of breviscapine on the cardiac structure and function in diabetic cardiomyopathy rats as well as the expression of protein kinase C (PKC) and Ca(2+)-cycling proteins expression. Diabetes was induced in male Sprague-Dawley rats by a single intraperitoneal injection of streptozotocin and the control rats were injected with saline. After the induction of diabetes for 4 weeks, the animals were divided into different groups: (1) normal rats as control; (2) diabetic rats; (3) diabetic rats with administration of breviscapine (10 or 25 mg kg(-1) day(-2)).
View Article and Find Full Text PDFPrevious studies have underlined the importance of endothelial dysfunction and microvascular occlusion in the pathogenesis of pulmonary artery hypertension (PAH). Since the endothelial progenitor cells (EPCs) are involved in maintaining endothelial homeostasis, we observed the change of peripheral EPCs in canines before and after PAH onset. PAH was induced by intra-pulmonary artery injection of dehydromonocrotaline (DHMC) in nine beagles.
View Article and Find Full Text PDFAim: To investigate the influence of breviscapine on high glucose-induced hypertrophy of cardiomyocytes and the relevant mechanism in vitro and in vivo.
Methods: Cultured neonatal cardiomyocytes were divided into i) control; ii) high glucose concentrations; iii) high glucose+PKC inhibitor Ro-31-8220; iv) high glucose+breviscapine; or v) high glucose+NF-kappaB inhibitor BAY11-7082. Cellular contraction frequency and volumes were measured; the expression of protein kinase C (PKC), NF-kappaB, TNF-alpha, and c-fos were assessed by Western blot or reverse transcription-polymerase chain reaction (RT-PCR).
The purpose of this study is to investigate the effect of chelerythrine on the hypertrophy of cardiomyocytes of neonatal rats induced by different glucose levels and its mechanism. Using cultured neonatal ventricular myocytes as a model, groups were divided as: control (5 mmol x L(-1)); high glucose level (10, 15, 20, and 25.5 mmol x L(-1)); high glucose level (25.
View Article and Find Full Text PDFBackground: High glucose could induce structure and function change in cardiomyocytes, PKC plays a core effect in the onset and progression of diabetic cardiomyopathy, but its underlying downstream signal transduction pathway is still not completely understood.
Objectives: To study the influence of high glucose on the structure, function and signal transduction pathway of PKC (Protein Kinase C)/NF-kappaB(Nuclear factor-kappaB)/c-fos in cultured cardiomyocytes.
Methods: Using cultured cardiomyocytes of neonatal Sprague-Dawley rats as a model, groups were divided into: control group (glucose: 5 mmol/L); high glucose group (glucose: 10 mmol/L, 15 mmol/L, 20 mmol/L, 25.
Endothelial progenitor cells (EPCs) play an important role in both reendothelialization and neovascularization. Ex vivo expansion of EPCs might be useful for potential clinical cell therapy of ischemic diseases. However, ex vivo cultivation of EPCs leads to rapid onset of EPCs senescence, thereby severely limiting the proliferative capacity and clonal expansion potential.
View Article and Find Full Text PDFExperimental data suggest that transplantation of EPCs attenuates monocrotaline-induced pulmonary hypertension in rats and dogs. In addition, our previous studies suggested that autologous EPC transplantation was feasible, safe, and might have beneficial effects on exercise capacity and pulmonary hemodynamics in adults with IPAH. Thus, we hypothesized that transplantation of EPCs would improve exercise capacity and pulmonary hemodynamics in children with IPAH.
View Article and Find Full Text PDFObjectives: The goal of this study was to investigate the feasibility, safety, and initial clinical outcome of intravenous infusion of autologous endothelial progenitor cells (EPCs) in patients with idiopathic pulmonary arterial hypertension (IPAH).
Background: Experimental data suggest that transplantation of EPCs attenuates monocrotaline-induced pulmonary hypertension in rats and dogs. In addition, clinical studies suggest that autologous progenitor cell transplantation is feasible and safe in patients with ischemic diseases.
Our previous studies have shown that Ginkgo biloba extract increased endothelial progenitor-cell (EPC) numbers and functional activity. However, the mechanisms remain to be determined. Recent studies have demonstrated that increased EPC numbers and activity were associated with the inhibition of EPC senescence, which involved activation of telomerase.
View Article and Find Full Text PDFBackground: Hyperhomocysteinemia (HHcy) contributes to atherosclerosis and coronary artery diseases by inducing endothelial cell injury and dysfunction. Recent studies provided increasing evidence that endothelial progenitor cells (EPCs) participated in ongoing endothelial repair. The changes of EPCs in patients with HHcy have not yet been elucidated.
View Article and Find Full Text PDFZhejiang Da Xue Xue Bao Yi Xue Ban
March 2005
Objective: To investigate alterations of endothelial progenitor cells (EPCs) from peripheral blood in patients with coronary heart diseases.
Methods: Twenty patients with coronary heart diseases (CHD) and 20 matched control subjects were included in the study. Total mononuclear cells (MNCs) were isolated from peripheral blood by Ficoll density gradient centrifugation, and then the cells were plated on fibronectin-coated culture dishes.
Zhongguo Ying Yong Sheng Li Xue Za Zhi
February 2005
Aim: To investigate whether Ginkgo biloba extract can augment endothelial progenitor cell (EPC) number, and promote EPC proliferation, migration and adhesion.
Methods: Total mononuclear cells (MNCs) were isolated from peripheral blood by Ficoll density gradient centrifugation, and then the cells were plated on fibronectin-coated culture dishes. After 7 days of culture, attached cells were stimulated with Ginkgo biloba extract (10, 25 and 50 mg x L(-1)) or vehicle control for the respective time points (6, 12, 24 and 48 h).
Zhongguo Zhong Yao Za Zhi
August 2004
Objective: To investigate whether puerarin can augment endothelial progenitor cells (EPCs) numbers, promote EPC proliferation, migration and adhesion.
Method: Total mononuclear cells (MNCs) were isolated from peripheral blood by Ficoll density gradient centrifugation, and then the cells were plated on fibronectin-coated culture dishes. After 7 days culture, attached cells were stimulated with puerarin (to make a series of final concentrations: 0.
Aim: To investigate whether puerarin can augment endothelial progenitor cells (EPCs) numbers, promote EPC proliferative, migratory, adhesive, and in vitro vasculogenesis capacity.
Methods: EPCs were characterized as adherent cells by double staining of DiLDL-uptake and lectin binding under a laser scanning confocal microscope. Expression of KDR, VEGFR-2, and AC133 was detected by flow cytometry.
Recently, some studies have shown that nicotine increased neovascularization, which involves endothelial progenitor cells (EPCs). The effects of nicotine on EPCs are still unclear at present. Therefore, the authors investigated whether nicotine had influences on EPC number and activity.
View Article and Find Full Text PDFAims: The aim of this study is to investigate whether angiotensin-converting enzyme inhibitor (ACEI) therapy with ramipril could augment circulating endothelial progenitor cells (EPCs) with enhanced functional activity in patients with stable coronary artery diseases.
Methods And Results: 20 patients with angiographically documented stable coronary artery disease (CAD) were prospectively treated with 5 mg of ramipril per day for 4 weeks. Before and weekly after the initiation of ramipril therapy, EPCs were isolated from peripheral blood and counted.
The aim of the present study was to investigate whether fluvastatin augments the number of endothelial progenitor cells (EPCs), and promotes EPCs proliferation, migration and adhesion. Total mononuclear cells (MNCs) were isolated from peripheral blood by Ficoll density gradient centrifugation. The cells were then plated on fibronectin-coated culture dishes.
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