نتایج جستجو برای: micro vessels

تعداد نتایج: 172633  

2012
Jaspreet Kaur

Diabetes mellitus, a metabolic disorder, has become one of the rapidly increasing health threats both in India and worldwide. The complication of the diabetes associated to retina of the eye is diabetic retinopathy. A patient with the disease has to undergo periodic screening of eye. For the diagnosis, ophthalmologists use color retinal images of a patient acquired from digital fundus camera. T...

2012
Jaspreet Kaur

Diabetic retinopathy is one of the serious eye diseases that can cause blindness and vision loss. Diabetes mellitus, a metabolic disorder, has become one of the rapidly increasing health threats both in India and worldwide. The complication of the diabetes associated to retina of the eye is diabetic retinopathy. A patient with the disease has to undergo periodic screening of eye. For the diagno...

2014
Songchao Xue Hui Gong Tao Jiang Weihua Luo Yuanzheng Meng Qian Liu Shangbin Chen Anan Li

The topology of the cerebral vasculature, which is the energy transport corridor of the brain, can be used to study cerebral circulatory pathways. Limited by the restrictions of the vascular markers and imaging methods, studies on cerebral vascular structure now mainly focus on either observation of the macro vessels in a whole brain or imaging of the micro vessels in a small region. Simultaneo...

2012
Daniela Mihic-Probst Kristian Ikenberg Marianne Tinguely Peter Schraml Silvia Behnke Burkhardt Seifert Gianluca Civenni Lukas Sommer Holger Moch Reinhard Dummer

Recent molecular studies provide evidence for a significant transcriptional plasticity of tumor cell subpopulations that facilitate an active contribution to tumor vasculature. This feature is accompanied by morphological changes both in vitro and in vivo. Herein, we investigated the morphological plasticity of tumor cells with special focus on vasculogenic mimicry and neovascularisation in hum...

2014
Derek G. Pyne Jun Liu Mohamed Abdelgawad Yu Sun David T. Eddington

Cryopreservation is a key technology in biology and clinical practice. This paper presents a digital microfluidic device that automates sample preparation for mammalian embryo vitrification. Individual micro droplets manipulated on the microfluidic device were used as micro-vessels to transport a single mouse embryo through a complete vitrification procedure. Advantages of this approach, compar...

Introduction: There are few studies investigating the role of neoangiogenesis in biological behavior of salivary gland tumors. CD105 expression has demonstrated greater accuracy for detecting new vessel formation compared with other pan-endothelial molecules. This study aimed to assess and compare intratumoral Micro-Vessel Density (MVD) through using immunohistochemichal expression of CD105 bio...

Background & Aims: Angiogenesis is a key event during tumor growth. Since tumor cells require more oxygen and glucose than normal cells and due to tumors quick growth, new blood vessels rapidly increase to meet the nutritional requirements. Hence, targeting and inhibiting the formation of new blood vessels can reduce the nutrition and access of tumor cells to oxygen, which also inhibits tumor g...

توانگر, سیدمحمد, جهانی, محمد , شریف تبریزی, احمد , صناعت, زهره , علی مقدم, کامران , قوام زاده, اردشیر ,

Background: The important of angiogenesis for the progressive growth and viability of solid tumors is well established. Only few data are available for hematologic neoplasms. Materials and Methods: To investigate the role of angiogenesis in the acute myloid leukemia (AML) bone marrow biopsies from 30 adults with newly diagnosed, untreated AML(day 0) were evaluated. Further studies were done aft...

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