intussusception/hypoxia

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Selective induction of sprouting and intussusception is associated with the concentration distributions of oxygen and hypoxia-induced VEGF

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Sprouting and intussusception are two important modes of capillary angiogenesis, the mechanisms of selective induction of which remain unclear. In this study, we focus on the two developing tissues of yolk sac and skeletal muscle of 2-week-old rat and try to explain the mechanisms to induce

Two neonates with intussusception accompanying severe hypoxia.

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Intussusception in neonates: analysis of 14 Japanese patients.

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OBJECTIVE To clarify the clinical features and pathogenesis of intussusception in neonates. METHODS Fourteen neonates were diagnosed with intussusception between June 1974 and January 2001. Patients were divided into two groups according to whether or not signs were present on the first day of life.

Atrial fibrillation, an epiphenomenon of acute Stanford type-A aortic dissection with suspected intimo-intimal intussusception.

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Supraventricular arrhythmias can sometimes be "only" epiphenomena appearing during acute hypoxia, pneumonia, pulmonary embolism, and thrombosis. Indeed, atrial fibrillation is not rare in acute aortic dissection as it is estimated in about one half of patients and may be secondary to a perfusion

Different angiogenesis modes and endothelial responses in implanted porous biomaterials.

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An in vivo experimental model based on implanting porous biomaterials to study angiogenesis was proposed. In the implanted porous polyvinyl alcohol, three major modes of angiogenesis, sprouting, intussusception and splitting, were found. By electron microscopy and three-dimensional simulation of the

Lung injury leading to respiratory distress syndrome in young Dalmatian dogs.

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A progressive pulmonary disease resulting in severe respiratory failure and death in an average of 3 weeks was diagnosed in 11 young Dalmatian dogs. The dogs were from 4 litters, all genetically related by a common ancestor. The initial clinical signs were tachypnea and noisy respiration.

Corrosion casting of the subglottis following endotracheal tube intubation injury: a pilot study in Yorkshire piglets.

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OBJECTIVE Subglottic stenosis can result from endotracheal tube injury. The mechanism by which this occurs, however, is not well understood. The purpose of this study was to examine the role of angiogenesis, hypoxia and ischemia in subglottic mucosal injury following endotracheal

Assessing tumor angiogenesis in histological samples.

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Tumor neovascularization acquires vessels through a number of processes, including angiogenesis, vasculogenesis, vascular remodelling, intussusception, and possibly vascular mimicry in certain tumors. The end result of the tumor vasculature has been quantified by counting the number of

From sprouting angiogenesis to erythrocytes generation by cancer stem cells: evolving concepts in tumor microcirculation.

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Angiogenesis is essential for tumor growth and metastasis. Over the last decades, a substantial progress has been achieved in defining different patterns of tumor microcirculation. Sprouting angiogenesis, the oldest model of microcirculation, is the de novo vessel formation from preexisting blood

Intussusceptive angiogenesis: pillars against the blood flow.

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Adaptation of vascular networks to functional demands needs vessel growth, vessel regression and vascular remodelling. Biomechanical forces resulting from blood flow play a key role in these processes. It is well-known that metabolic stimuli, mechanical forces and flow patterns can affect gene

Directed glia-assisted angiogenesis in a mature neurosensory structure: pericytes mediate an adaptive response in human dental pulp that maintains blood-barrier function.

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The specialized tightly controlled microcirculation of craniofacial neurosensory organs is an essential evolutionary adaptation and yet a dilemma where angiogenic remodeling occurs. Despite extreme plasticity of neurosensory structures, the capacity to reconcile barrier phenotype of the

Histological quantitation of tumour angiogenesis.

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Tumours establish their blood supply via a number of processes in addition to angiogenesis. These include vasculogenesis, vascular remodelling, intussusception and possibly vascular mimicry in certain tumours. The mainstay of the assessment of tumour vascularity has been counting the number of

Intussusceptive Vascular Remodeling Precedes Pathological Neovascularization.

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Objective- Pathological neovascularization is crucial for progression and morbidity of serious diseases such as cancer, diabetic retinopathy, and age-related macular degeneration. While mechanisms of ongoing pathological neovascularization have been extensively studied, the initiating pathological

Assessing Tumor Angiogenesis in Histological Samples.

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Tumor neovascularization acquires their vessels through a number of processes including angiogenesis, vasculogenesis, vascular remodeling, intussusception, and possibly vascular mimicry in certain tumors. The end result of the tumor vasculature has been quantified by counting the number of

Vascular morphogenesis and remodeling in a model of tissue repair: blood vessel formation and growth in the ovarian pedicle after ovariectomy.

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To investigate mechanisms of vascular morphogenesis in tissue repair, we performed ovariectomy with resection of the corresponding branches of the ovarian vessels in nude mice. This induces a vascular network remodeling response in the healing ovarian pedicle. Reconstruction of 2000 histological

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