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To observe method of chick embryo allantois membrane, judge neovascularisation, research the effect of angiogenesis by drugs by means of chick embryo allantois membrane model.
学会观察鸡胚尿囊膜血管的方法,判断新生血管形成,通过鸡胚尿囊膜模型探讨药物对血管生成作用的影响
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Autumn is a season of transition, the temperature will affect the blood vessels to reduce systolic function.
秋季是一个过渡的季节,温度的降低会影响血管的收缩功能。
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Constituting a tube; having hollow tubes同义词:tubular, cannular, tubelike, tube-shaped vasoactive
a。 血管活性的,(尤指在血管的舒张或收缩方面)作用于血管的,影响血管的 vasoconstriction
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The NO content and the NOS activity were down in the PIH pregnant women placenta.This showed that the ghrelin regulated the VEGF and influenced the the NO down.And the placenta angiospasm,blood pressure highten, and the PIH were caused also by this. The ghrelin,VEGF,Flt-1,NO and NOS were detected by the SP-immunochemistry, RQ-PCR,cell culture in vitro,ASODN and nitrate reductase in the normal pregnancy,PIH placenta and the cultured HUVEC antisense blocking ghrelin in vitro.
结果证实:PIH孕妇胎盘组织中Ghrelin,VEGF、Flt-1蛋白和mRNA水平下降与正常孕妇比较有显著性差异p<0.05提示在PIH发病过程中Ghrelin可能对VEGF,Flt-1蛋白和mRNA的表达具有下调作用,进而影响胎盘血管网的形成和发育;NO含量与NOS活力水平在PIH孕妇胎盘组织中下降,提示Ghrelin可能通过下调VEGF的表达进一步影响血管舒张因子NO水平下降,进而引起胎盘血管痉挛,血压升高,最终导致PIH的发生。
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The article reviews mechanism of action of caroid artery resulting from hypertension, especially debates vascular endothelial injury resulting from shear stress of vascular wall caused by hypertension, which can also affect vasopermeability by affecting the morphans, structure and function of vascular endothelium.
本文综述高血压引起颈动脉狭窄的发生机制,重点探讨血压对血管壁所造成的切应力引起的血管内皮细胞受损,通过影响血管内皮细胞的形态、结构和功能,并影响血管通透性,从而有助于脂质沉积的病理学机制。
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ConclusionTo begin with, the blood supply is adequate in the intertransverse area, and the distribution of blood vessels follows some regularities, so to be familiar with the anatomy and to operate carefully can reduce bleeding.
同时腰椎横突间及小关节区域常为诸多腰椎手术所涉及,临床上在处理这一区域时常会因损伤血管,引起出血不止而导致手术视野不清并影响手术操作,同时大量的出血可影响患者的手术耐受性,增加发生输血相关并发症的风险,尤其对ILIF手术,如忽略对此区域解剖结构和血管走行的认识将可能影响手术成功施行。
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This study consists 3 partsPart I: the research on the mechanism of affecting the growth of CAM vesselsBecause neoformative vessels is most related with bFGF and VEGF, this study designed bFGF, VEGF and the primer of its receptor, by the experiment of the generation of CAM vessels, draw the materials from CAM tissues consist account of vessels, by the experiment of RT-PCR, reserve the influence of HSYA on the expression of bFGF, VEGF, VEGF-R(flt-1) in CAM tissues.
本实验分为三部分:第一部分,HSYA影响鸡胚尿囊膜血管生成的机理研究由于新生血管与bFGF、VEGF及其受体的关系最为密切,本实验设计了bFGF、VEGF及其受体的引物,利用CAM血管生成实验,直接从富含血管的CAM组织上取材,通过RT-PCR实验,观察HSYA对CAM组织中上述三个基因表达的影响。
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This plaque will cause an obstruction that interferes with the man''''s ability to get an rection.
由于血管壁上形成血栓,高血压导致通往前列腺的血管血流量减少,血栓会造成血管堵塞,影响男性的勃起能力。
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The activation of endothelial cell caused by TNF-α has detrimental effects on the vasculature. TNF-α can induce the increased apoptosis of gravid trophocyte. TNF-α has been showing up-regulate the vasoconstriction factors such as endothelin and down-regulate the vascular relaxing factors such as NO on the contrary.
肿瘤坏死因子α作为炎性分子,激活血管内皮细胞、间接影响血管舒缩功能,通过各种机制诱导胎盘滋养细胞凋亡增加,增加血管收缩因子并减少血管舒张因子的生成和释放,影响与脂类代谢相关的细胞因子。
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As the temperature of rat aorta was raised, the vasoconstrictive force and vasoconstrictive speed increased, and the effects of norepinephrine on vasculature were raised. The results suggest that the constant X1 for vasoconstrictive force is a factor sensitive to temperature.
认为NE引起的血管收缩张力的大小,显然也处于温度的影响之下;随着温度的升高,血管收缩张力变大,收缩速率变快,NE对血管的作用效力增强;且张力因子X1是温度敏感因子。
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aberration:迷乱
2)颞含关节(TMJ)的附近也要舒缓,活动1-2分钟枕骨和环椎(即第一颈椎)的关节错位,使血管和神经产生迷乱(aberration)所引起的. 有时病人会有眼花、耳鸣、身体失去平衡和精神不集中的现象. 椎骨的错位(Subluxation)对脊椎神经必然造成三种影响:1、压到(Pressure).
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acclimation:气候适应
在慢性(长期)冷暴露(Cold exposure)情况下,动物的代谢发生特异性变化,持续稳定的寒冷刺激,使儿茶酚胺和甲状腺素分泌增强,机体的能量代谢持续升高,但体热绝缘即保温能力(被毛厚实,血管收缩)不受影响,动物的存活时间可以延长,这种情况称为惯习或气候适应(Acclimation).
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diabetic retinopathy:糖尿病视网膜病变
糖尿病是影响全身各个脏器和组织血管的糖代谢紊乱疾病,其中糖尿病视网膜病变(diabetic retinopathy)为糖尿病的严重并发症之一,也是欧美各国四大致盲眼病中占第一位的眼病.
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endothelium:内皮(细胞)
由于尿酸会影响内皮细胞(Endothelium),阻碍平衡血管收窄的一氧化氮,引致血管内壁细胞受阻而引起中风. 病人在日常生活中,应以吸取低嘌呤食物为准. 上述研究发现,高血压患者越能降低尿酸,中风几率越低,因此在选择药物时,
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inflammation:炎
此因子和我们身体对创伤的生理变化--发炎(inflammation)有着密切的关系,譬如休克、气管狭窄、肠胃溃疡形成等等. 血小板活跃因子对我们的免疫功能也会造成负面的影响,如哮喘,器官移植的排斥,心肌梗塞引起的心律不齐,血管炎等等.
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swimming:游泳/游泳
一、项目介绍 游泳 游泳(swimming)是男女老幼都喜欢的体育项目. 游泳运动对人体具有广泛的影响:明显改善心血管功能,水的压力和阻力对心脏和血液的循环起到特殊的刺激作用,可以增强呼吸肌的收缩力,加大肺活量,改善外周血管的弹性;
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Vasodilation:血管擴張
他们对呼吸中枢及心脏血管系统的影响,纵使是小剂量,对於没有使用呼吸器的病人,也有可能引起缺氧或是二氧化碳过高的危险.另外,镇静剂对血压也有直接及间接的影响,一方面他有直接血管扩张(vasodilation)的作用.另一方面,可能有抑制心脏功能的作用,
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methyldopa:甲基多巴
(2)甲基多巴(Methyldopa) 能竞争性阻滞去甲肾上腺素合成过程中多巴向多巴胺转化的脱羧作用,阻止去甲肾上腺素的合成而降压. 对心率、心排血量影响很小,并能维持肾血流量和肾小球滤过率不变,也能扩张肾内动脉血管,使肾血管阻力降低,
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Pethidine:哌替啶
哌替啶(pethidine),又名度冷丁(dolantin) 对中枢神经系统的影响与吗啡相似,但镇咳作用弱,且维持时间短. 也有扩张外周血管及脑血管的作用. 对平滑肌的影响与吗啡有所不同,不引起便秘,也无止泻作用;不对抗催产素对子宫的兴奋作用,
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corticosteroid:皮质醇
例如高浓度的皮质醇(corticosteroid)会引起脑部海马回的损伤,伴随记忆力受损,尤其是学习新资讯的能力. 压力也会损害免疫系统,增加受感染的机会,在心血管方面也会提高罹患心脏病的风险. 目前研究指出,压力对心理的影响是透过神经系统作用而产生.