| 词汇 | example_english_hypoxia |
| 释义 | Examples of hypoxiaThese examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. For example, pre-adaptation to cold may protect against subsequent exposure to ionizing radiation (positive acclimation), but may increase vulnerability to hypoxia (negative acclimation). Although vasodilatation may improve peripheral blood flow, it may also cause shunting which can result in regional tissue hypoxia. These results indicate that at least in the acute situation hypoxia alone does not generate the markers of oxidative stress that typify the preeclamptic placenta. The cave's entrance became buried, and inadequate ventilation caused an episode of hypoxia and carbon monoxide poisoning. Five infants had hypoxia <40 torr and 5 needed a continuous infusion of epinephrine >1 ng/kg/min. Five infants had hypoxia <40 torr and 5 needed a continuous infusion of epinephrine >1 tig/kg/min. Right ventricular dysfunction has been attributed either to persisting high right ventricular afterload or to chronic myocardial hypoxia prior to repair. Factors that promote cellular dehydration, tissue hypoxia, and leukocyte or endothelial cell activation are all involved in generating vaso-occlusion. Also, gas exchange is affected, with a reduced awareness of the response to hypoxia and hypercapnia as described later. Relative hypoxia is a potent vasodilator in the coronary, cerebral, and adrenal beds, but a vasoconstrictor in the pulmonary bed. In mammals, nitric oxide stimulates increased blood flow to areas where hypoxia occurs. This exacerbates hypoxia, which can promote tumour angiogenesis by enhancing the production of proangiogenic factors. End-stage hypoxia in this condition is manifest by a score of either 2/10 or 0/10. In contrast, the effects of striatal injuries are evident in childhood, and the caudate is highly vulnerable to hypoxia and ischemia. This process, in addition to sustained or episodic hypotension may induce cerebral hypoperfusion, ischaemia and hypoxia. Taken together, these results support a model in which hypoxia interacts with predisposing genes for schizophrenia in increasing risk for phenotypic expression. Research with fruit fly larvae found that nitric oxide plays a role in behaviour modulation in response to hypoxia. They often have higher pulmonary vascular resistance due to respiratory distress with hypoxia and hypercarbia. Although severe hypoxia will lead to cell death, many tumour cells have undergone genetic alterations that confer resistance to apoptosis. Placental villus morpholgy in relation to maternal hypoxia at high altitude. Until recently it was thought that brain injury in the preterm infant was a peri- or postnatal event triggered by episodes of hypoxia or ischemia. Hypoxia/reoxygenation is a potent stimulus for placental production of tumour necrosis factor-alpha. These examples are from corpora and from sources on the web. Any opinions in the examples do not represent the opinion of the Cambridge Dictionary editors or of Cambridge University Press or its licensors. |
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