查询词典 hypoxia

Hypoxia inhibits a variety of K+ channels in the type Ⅰ cells of the carotid body, in a seemingly species-dependent manner, and the resultant membrane depolarisation is sufficient to activate voltage-gated Ca2+ entry leading to neurosecretion and afferent discharge.

低氧可抑制颈动脉体Ⅰ型细胞中的多种K+通道，这种作用可能有种属差异；K+通道的抑制使膜电位去极化，启动电压依赖性Ca2+内流，最后导致神经分泌和传入放电。

Objective: To explore the roles of vascular endothelial growth factor in hypoxia pulmonary hypertension and effect of Polymyxin B.

目的：探讨血管内皮生长因子在低氧性肺动脉高压形成中的意义及多黏菌素B对其的影响。

Methaemoglobin loses its ability to bind oxygen and causes hypoxia in the affected individuals. The condition is characterized by headache, weakness and breathlessness, and a bluish discolouration of the skin and mucous membranes called cyanosis.

这是因为亚硝酸盐使体内红血球素中的铁由亚铁氧化成正铁，正铁血红蛋白失去携氧能力，造成血氧过少，令人感到头痛，虚弱，呼吸困难，皮肤和黏膜会变成紫蓝色，医学上称为发绀。

Besides the traditional fields of aviation medicine such as high altitude hypoxia, acceleration tolerance, flight illusion, etc., the emphasis of research work should be placed even more on the pilot selection, health care, aeromedical training and aviation ergonomics in the future, and on the establishment of the integrated and systemic aeromedical support measures, so as to provide entirely physiological protection to the pilots working in severe environments, and to optimize the ergonomic design of man-machine interface for improving human capabilities in flight.

未来军事航空医学研究在重视高空缺氧、加速度耐力、飞行错觉等传统问题的同时，应更加关注飞行人员选拔、健康维护、航空医学训练、航空工效等热点问题，并建立航空综合系统的卫勤保障措施，力求为处于严酷环境中的飞行人员提供全面的生理防护和高效的卫勤保障，并优化人机界面工效学设计，充分发挥人的因素作用。

The absorbance of MTT and PCNA in hypoxia group were higher than in normal group.

结果表明，低氧组周细胞的MTT和PCNA吸光度均较常氧组高。

Results:It was showed that both PKC activity and VEGF levels increased significantly (P＜0.01) dur ing hypoxia.

结果：低氧时膜 PKC 活性和培养液中VEGF水平明显升高(P＜0.01)。

Objective To investigate relationship between GHBA's protective effect on hypoxia-reoxygenation neuronal damage and GABA and GABARα1 positive neurons.

目的 探讨γ-羟基丁酸对大鼠皮层神经元缺氧复氧损伤的保护作用与γ-氨基丁酸和GABA受体A型α1亚型GABA(下标 ARα1阳性神经元表达的关系。

GHBA can protect hypoxia-reoxygenation neurons through upregulating GABA and GABARα1 positive neurons.

GHBA可通过上调GABA和GABARα1阳性神经元的表达水平对缺氧复氧皮层神经元发挥保护作用。

Fancy gold-plated dangling earrings with facetted White Opal crystals.

花式镀金悬垂耳环与facetted白欧泊水晶。

This essay chooses the study aim from biology teachers in middle school in Shi Jiazhuang which tells us that most of the middle school biology teachers in Shi Jiazhuang have the"burnout", lower successfulness, individualize.

本文选取石家庄市初中生物教师作为研究对象，运用问卷调查的方法对石家庄市初中生物教师职业倦怠的现状进行调查，调查结果发现，石家庄市初中生物教师这一群体普遍存在职业倦怠，情感枯竭程度偏高，成就感偏低，去个性化程度最为严重。