| 词汇 | blood-brain-barrier |
| 释义 | BETA blood-brain barriercollocation in Englishmeanings of blood, brainand barrierThese words are often used together. Click on the links below to explore the meanings. blood noun[ U ] uk /blʌd/ us /blʌd/ the red liquid that is sent around the body by the heart, and carries oxygen and important substances to organs and tissue, and removes ... See more at blood brain noun uk /breɪn/ us /breɪn/ the organ inside the head that controls thought, memory, feelings, ... See more at brain barrier noun[ C ] uk /ˈbær.i.ər/ us /ˈber.i.ɚ/ a long pole, fence, wall, or natural feature, such as a mountain or sea, that stops people from ... See more at barrier Examples of blood-brain barrierblood-brain barrier Lack of effect observed in brain is possibly due to restricted diffusion of charged nucleic acids across the blood-brainbarrier. Steroid hormones can cross the blood-brainbarrier, and thus have a significant impact on neuronal development and organization. The permeability of the blood-brainbarrier was highly increased by ischemia/reperfusion. Medical advances in this area have been hindered by the "blood-brainbarrier" that prevents most small- and large-molecule drugs from entering the brain. There was no effect of tetracycline, which does not cross the blood-brainbarrier, on performance or survival. At the end of embryogenesis the outer glia forms a continuous sheath of cells around the nervous system, thus establishing the blood-brainbarrier. Localized tissue oedema may also in some circumstances be due to disruption of the blood-brainbarrier, for example in hypertension. The addition of dopa decarboxylase inhibitors to levodopa increases the delivery of levodopa across the blood-brainbarrier from around 1% to 10%. To overcome the blood-brainbarrier, direct delivery of immune therapy into the cerebrospinal fluid has been attempted, with promising results. Magnesium sulfate decreases blood-brainbarrier permeability during acute hypertension in pregnant rats. Adhesion molecules are involved in the leukocyte recruitment at the bloodbrainbarrier. Domperidone is less likely to cause this problem as it does not cross the blood-brainbarrier but does not aid gastric emptying. Alvimopan is potent and orally active, and once it is absorbed the drug has a limited ability to cross the blood-brainbarrier. Collectively, these observations support our hypothesis that blood-borne insulin is transported across the blood-brainbarrier where, in the presence of adequate glucose levels, it facilitates cognitive performance. Astroglia interact with cerebral endothelia to maintain the blood-brainbarrier. 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. |
反思网英语在线翻译词典收录了377474条英语词汇在线翻译词条，基本涵盖了全部常用英语词汇的中英文双语翻译及用法，是英语学习的有利工具。