نتایج جستجو برای: endostatin
تعداد نتایج: 1047 فیلتر نتایج به سال:
Angiogenesis is controlled by anti-angiogenic factors as well as by angiogenic factors, such as VEGF (vascular endothelial growth factor) and HGF (hepatocyte growth factor). Endostatin, a potent endogenous angiogenesis inhibitor, is known to inhibit endothelial proliferation and suppress tumour growth. However, to date, little is known about the pathophysiology of endostatin in ischaemia/reperf...
Elective orthopedic and cardiopulmonary bypass surgery causes a reduction in serum endostatin levels
BACKGROUND Endostatin is an endogenous inhibitor of angiogenesis that inhibits neovascularisation. The aim of the study was to evaluate the effect of elective surgery on endostatin levels. METHODS Blood samples were collected prior to elective surgery and 4 and 30 days postoperatively in 2 patient groups: orthopedic surgery (n =27) and coronary bypass patients (n =21). Serum endostatin levels...
Endogenous fragments of extracellular matrix are known to possess various biological effects. Levels of endostatin, a fragment of collagen type XVIII, increase in certain cardiac diseases, such as cardiac hypertrophy and myocardial infarction. However, the influence of endostatin on cardiac contraction has not been clarified. In the present study, we investigated the effects of endostatin on br...
UNLABELLED The purpose of our study was to evaluate the clinical usefulness of serum endostatin levels during chemotherapy of lung cancer in relation to the histopathological type of the tumor, clinical stage and response to therapy. MATERIALS AND METHODS Serum concentrations of endostatin were determined in 37 patients (24 with non-small cell lung cancer and 13 with small cell lung cancer), ...
Eighty healthy male Wistar rats, aged 5 weeks, weighing 100-120 g, were utilized for establishing tumour-bearing models by immediate Walker-256 cancerous ascites injection and randomly divided to four groups (n=20) treated with 0.2 ml solution containing saline, (32)P-colloid (0.3 mCi), endostatin gene (20 μg), endostatin gene combined with colloid (32)P. The effect of endostatin combined with ...
Endostatin is a potent endogenous angiogenesis inhibitor that induces regression of tumors in mice. Neither an extracellular receptor for endostatin nor intracellular signals that result in the regression of tumor vascular beds have been identified. We demonstrate that endostatin, but not angiostatin, at comparable concentrations to those used in in vivo animal trials, rapidly down-regulates ma...
Background: Endostatin is a potent endogenous anti-angiogenic agent which inhibits tumour growth. A non-synonymous coding polymorphism in the Endostatin gene is thought to affect Endostatin activity. We aimed to determine the role of this Endostatin polymorphism in breast cancer pathogenesis and any influence on serum Endostatin levels in healthy volunteers. Endostatin protein expression on a b...
INTRODUCTION The growth of a tumour is limited by its neovascularisation. Angiogenesis is dependent on a dynamic balance between its activators and inhibitors. One of the most important antiangiogenic factors is endostatin. The aim of the study was to assess the usefulness of serum endostatin levels as a potential marker of metastases of well-differentiated thyroid cancer, and to estimate the e...
new study identifies a possible new function for endostatin, the potential cancer-killer that checks blood vessel growth. Within the developing kidney, endostatin may help regulate the branching that establishes the network of urine-collecting tubules. Cells in the ureteric bud divide and change shape to form the plumbing system of the kidney. Because endostatin inhibits blood vessel formation,...
tumor cells are dependent on angiogenesis to obtain oxygen and nutrients and also development of their new vascular network. vegf as an important stimulator of angiogenesis and endostatin as an inhibitor play a fundamental role in this process. this study was designed to investigate the effect of six weeks of resistance training on tumor tissue vegf andendostatin in mice with breast cancer. for...
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