论文部分内容阅读
一、热耐受性与分次热疗(1.2) 高温有直接杀灭细胞的作用。尽管不同组织和细胞对高温的敏感性不同,目前的资料尚不能证明某种癌细胞比其相应的正常细胞对高温更敏感。但在组织水平,由于瘤组织常处于慢性缺氧,营养缺乏及PH值较低的状态,故一般而言瘤组织比正常组织对热更为敏感。 某一细胞或组织在接受了一个热剂量后数小时或数天后再接受第二个热剂量,第一次加温就给第二次加温产生保护作用,使其损伤减轻,这种现象称之为热耐受现象。现
First, thermal tolerance and fractional hyperthermia (1.2) High temperature has the effect of directly killing cells. Although the sensitivity of different tissues and cells to high temperatures is different, current data cannot prove that a certain cancer cell is more sensitive to high temperatures than its corresponding normal cells. However, at the tissue level, tumor tissue is generally more sensitive to heat than normal tissue because of its chronic hypoxia, nutritional deficiency, and low pH. A certain cell or tissue receives a second thermal dose several hours or days after receiving a thermal dose. The first warming will give a second warming protection, which will reduce the damage. This phenomenon is called The heat tolerance phenomenon. Now