动物实验证明,克山病病区粮养动物在给以亚硝酸盐等附加因素时,能引起动物心肌发生病理性损害。并且这些损害程度明显地异于非病区粮养动物。根据病区粮养动物心肌对于缺氧缺血性因素极为敏感的特点,以及功能代谢与形态变化的辩证关系,推测在心肌坏死发生之前可能先有一定的心肌代谢障碍过程。因此本文对于克 Animal experiments show that food animals in Keshan disease area to give additional factors such as nitrite, can cause pathological lesions in animal myocardium. And the extent of these damage is obviously different from non-ward food-bearing animals. According to the characteristics of myocardial ischemia and ischemia in the ward animals, and the dialectical relationship between functional metabolism and morphological changes, it is presumed that there may be some myocardial metabolic disorder before the myocardial necrosis occurs. Therefore, this article for grams