protective reaction

Changes of microenvironment can trigger tumors producing a series of protective reaction in the stress lest tumor cells be injured or killed in hypoxia environment, and cells of the tumors obtain nutrient more effectively.

微环境的变化可触发肿瘤产生一系列应激性保护反应，使得肿瘤细胞在低氧状态下免受损伤或死亡，并且更有效地获取营养物质。

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Conclusion In the early stage, MSA is shown the degeneration of neuron is mild, and the lesion of axon is the main pathological changes. The PV (+) neuron in the dentate nucleus may due to the cell protective reaction.

结论MSA早期小脑的病变是以轴索病变为主而神经元变性则较轻，并且在齿状核出现的PV（+）神经元可能是一种细胞保护性反应。

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Objective To evaluate the protective effect and acute skin irritating reaction of anti cercaria emollient cream ( ACEC) from infection of S.

目的实验评价新型涂肤防护剂&防蚴润肤霜防御日本血吸虫尾蚴感染的效果，并了解其对皮肤的急性刺激反应。

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Accident Analysis and Protective Measure on the Stress Corrosion of the Lower Ellipse Head of Reaction Still

反应釜下封头应力腐蚀断裂事故分析和预防措施

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