查询词典 ras

Objectives Chymase, the rate-limiting enzyme of the RAS system, has been considered to be closely associated with the cardiac-vascular disease as well as hypertension, cardiac hypertrophy, congestive heart failure and atherosclerosis, and diabetic complication.

临床研究证实严格控制血糖对2型糖尿病患者可以延缓和减轻并发症的出现和发展，在两个大型实验中得以证实，但是不能彻底阻止其进一步的发展与发生。

First, some researchers still put emphasis on grammatical descriptions of the evidential systems in some highly-inflectional languages. Second, the researches seem to be confined to the lexis and clausal level, and the study of evidentiality at discourse and genre level is much less than enough. In addition, the review of the research on English RAs has shown that few systematic researches on evidentiality in academic discourse have been conducted. Third, there are few researches on what evidentiality can do for language users and especially on the interpersonal functions of evidentiality.

目前的言据性研究主要集中于以下几个方面：1有些研究者仍然把重点放在一些屈折性语言的据素的语法描写上，而这种语法描写只是问题的一个方面，而且对于英语这样非屈折性语言，对据素的语法描写似乎并没有实际意义。2对言据性的研究大多都还停留在词汇和句子层面，在语篇和语类的层面的研究并不充分，尤其对学术语篇中言据性系统性的研究寥寥。3对言据性在语篇中的人际功能的研究很少。

In 7 cases point mutation was found positive whereas negative result was found in the cytological examination.

结果显示有7例首先在纤维文气管镜刷检的脱落细胞中发现H－ras基因点突变。

Essential hypertension caused by neurovascular compression of the left ventrolateral medulla was associated with malbalance of vasomotor center in the dorsal medulla. The possible pathogenesis was the following:① An irritation of the left RVLM by pulsatile compression of an ectatic vessel would increase activity of central sympathetic neuron.② Neurovascular compression at the REZ of the cranial nerves Ⅸ and Ⅹ decreased excitation of parasympathetic nerve.③ Decreased sensitivity of afferent inputs to neuron of nucleus tractus solitarii in the sensory area lead to hyperactivity of central sympathetic nervous system due to pulsatile compression of the left RVLM.④ Neurocompression of the left RVLM and REZ in the left cranial nerves Ⅸ and Ⅹ lead to an overactivity of central renin angiotensin system.

3，结论：左侧延髓腹外侧Ⅸ、Ⅹ颅神经REZ动脉血管压迫所导致的高血压的发生与左侧延髓血管运动中枢对血压的调节失衡有关，其可能机制是：①左侧RVLM在搏动性血管压迫刺激下，中枢交感神经元活性增高；②左侧Ⅸ、Ⅹ颅神经REZ受压导致副交感神经兴奋性降低；③感受区孤束核神经元接受迷走神经传入冲动的敏感性减低，导致中枢交感神经活性增高；④左侧RVLM及Ⅸ、Ⅹ颅神经REZ受压引起中枢RAS活性增加。

The findings were compared with those from ovarian carcinomas unrelated to endometriosis, atypical endometriosis, and ovarian endome...

结果：起源于内异症的卵巢子宫内膜样癌和卵巢透明细胞癌中各有1例检测到K-ras基因第12密码子发生突变，突变类型为GGT→TGT，即甘氨酸→半胱氨酸，其余标本均未见第12、13密码子突变。p21蛋白在与内异症相关的卵巢肿瘤。。。

Take together, esculetin presented antiproliferation effect involving modulating the expression of cell cycle related proteins and the MAPK signal pathway.

综合以上结果esculetin抑制细胞增生乃藉Ras/MAPK以及Akt这两条讯息传递路径而影响调节细胞周期分子的表现。

The compilation of the dual provincial SAM, including each data source and the SAM balance skill—RAS and Cross Entropy method are also presented followingly.

模型的另一个应用是评价地区间的资源调配所产生的宏观经济影响，该研究以中国南水北调工程调水对北京市的影响为背景。

Results Of 49 cases,there were 36.7%of RA,8.2%of RAS,20.4%of RAEB,30.6%of RAEBT and 4.0%of CMML,respectively ,which showed the positive pathosis hemogenesis ,and had a trend of transforming to leukemia.

结果 49例中难治性贫血占36.7%，难治性贫血伴环状铁粒幼细胞增多占8.2%，原始细胞增多性难治性贫血占20.4%，转变中的RAEB占30.6%，慢性粒单型白血病占4.0%。

There was an interaction between sodium loading and enalapril on renin-angiotensin system in both hydronephrotic and normal kidneys.

以上结果提示，在正常及肾积水肾脏，钠负荷与依那普利通过相互作用而影响肾素-血管紧张素系统(renin-angiotensin system， RAS)。

The mutation rates were 30% and 25% in LBC and FM,respectively. It was \ mation of infinite life span human cell strain by transfection with v-Ki-ras.Oncogene,1990;5:1415. 6\ Yang D,Louden C,Reinhold DS,et al.Malignant transformation...

这一结果表明p53基因突变在大肠癌中的普遍存在，并在大肠癌的发生过程中起着重要作用；而家族成员中发现p53基因突变将可为癌症的癌前监控和预防提供重要佐证。

With Death guitarist Schuldiner adopting vocal duties, the band made a major impact on the scene.

随着死亡的吉他手Schuldiner接受主唱的职务，乐队在现实中树立了重要的影响。

But he could still end up breakfasting on Swiss-government issue muesli because all six are accused of nicking around 45 million pounds they should have paid to FIFA.

不过他最后仍有可能沦为瑞士政府&议事餐桌&上的一道早餐，因为这所有六个人都被指控把本应支付给国际足联的大约4500万英镑骗了个精光。