查询词典 hypoxia

The expression level of UCP2 mRNA reduced gradually that maybe is one of acclimation responses to hypoxia environment.

随着低氧时间的延长，UCP2 mRNA的表达水平逐渐降低是对低氧环境的一种适应性反应。

The expression_r_r level of UCP2 mRNA reduced gradually that maybe is one of acclimation responses to hypoxia environment.

随着低氧时间的延长，UCP2 mRNA的表达水平逐渐降低是对低氧环境的一种适应性反应。

Objective To observe the changes of the endocrine function and the ultrastructure of adrenocorticotrophic hormone cells in the rat＇ s pituitary gland treated with integripetal rhodiola herb under chronic hypoxia.

目的 观察红景天对慢性缺氧下大鼠腺垂体促肾上腺皮质激素细胞超微结构和内分泌功能的变化，探讨在慢性缺氧下红景天对ACTH细胞分泌功能的影响及其在机体缺氧应激反应中的作用。

DATA SYNTHESIS:① Under high altitude, the body would generate stress reaction to hypoxia, that is the adaptive action of hypothalamus-adenohypophyseal-adrenal cortical axis, and the increase in the concentration of adrenocorticotrophic hormone to regulate the adaptability of body to stress stimulation, moreover, to induce the increase in releasing factor secretion.

资料综合：①高海拔状态下机体对低氧产生应激反应，表现为下丘脑―垂体―肾上腺皮质轴的适应性运转，血中促肾上腺皮质激素浓度增加，以调节机体对应激刺激的适应能力，同时使促肾上腺皮质激素释放因子分泌增加。

We have investigated whether AhR involved in the effects of BP on hypoxia-induced angiogenesis.

因此，本篇的研究目的欲探讨在苯芘前处理的人类脐静脉内皮细胞是否透过AhR去影响缺氧状态下的血管新生作用。

Aim:(1) The purpose of this study is to examine whether protein tyrosine kinase and AMPA receptor in the nucleus tractus solitarius and nucleus ambiguus were involved in the regulation of normoxia and hypoxia respiratory response by microinjection of PTK inhibitor and non-NMDA receptor antagonist;(2) To observe the change of number of phosphotyrosine immunopositive neurons in NTS and NA before and after hypoxia using immunohistochemical methods and whether tyrosine phosphorylation and GluR1 in postsynaptic membrane co-localize in NTS and NA neurons.

目的：(1)观察向家兔脑干孤束核或疑核内微量注射酪氨酸蛋白激酶阻断剂和谷氨酸AMPA受体阻断剂对常氧呼吸和低氧呼吸反应的影响，探讨PTK和AMPA受体在低氧呼吸反应中的作用。(2)观察低氧通气后NTS和NA磷酸化酪氨酸免疫阳性神经元的数量变化；观察磷酸化酪氨酸和AMPA受体亚单位GluR1在突触后膜共存的情况，推测在低氧呼吸反应中AMPA受体和PTK信号转导途径的关系。

Methods Wistar rats were randomly divided in to four groups: normal control group,high altitude hypoxia group,soman intoxication group and hypoxia +soman intoxication group.

实验大鼠随机分为正常对照组、高原缺氧组、梭曼中毒组和缺氧复合梭曼中毒组。

In conclusion, our research has indicated that amine oximes or other hypoxia imaging agents might not be structure-specific pharmaceuticals, and lipophilicity seemed to be an important factor in design for hypoxia agents.

由于〓Tc〓-〓在胃肠道等脏器分布较多，难以检测腹腔肿瘤，但可广泛适用于其它部位实体瘤的诊断。而上述三者更集中于肝、肾，可能适用于某些胃肠道肿瘤和妇科肿瘤的乏氧显像。

This article introduces the effect of high central nervous system,changes of cerebral blood flow after hypoxia,damage of hypoxia to neurons in the respiratory center,neurotransmitters and neuromodulators in hypoxic respiratory depression.

Barnard等[2]在成年动物也发现了类似的情况，并且指出，缺氧2h内，颈动脉窦传入神经放电一直加强。以上研究结果提示，不论在新生动物还是成年动物，缺氧性呼吸抑制的发生都有其中枢来源。

CoCl2 (a chemical hypoxia-mimetic agent) was used to establish the chemical hypoxia-induced PC12 cell injuries model. Sodium hydrosulfide was used as a H2S donor. The viability of PC12 cells was measured by CCK-8 assay. The percentage of apoptotic cells was assessed by propidium iodide stain flow cytometry. The morphological change of apoptotic cells was tested by using the chromatin dye Hoechst 33258. The mitochondrial membrane potential was analyzed by rhodamine 123 staining and photofluorography. The level of reactive oxygen species in PC12 cells was measured by DCFH-DA staining and photofluorography.

应用化学性缺氧模拟剂CoCl2在PC12细胞建立化学性缺氧损伤模型；以硫氢化钠作为H2S的供体；应用CCK-8比色法检测细胞存活率；碘化丙啶染色流式细胞技术检测细胞凋亡率；Hoechst33258染色检测细胞凋亡的形态学变化；罗丹明123(Rh123)染色荧光显微镜照相检测细胞线粒体膜电位；2'，7'-二氯荧光黄双乙酸盐染色荧光显微镜照相检测细胞内的活性氧水平。

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。