论文部分内容阅读
现仅知道很小一部分(约1%)膀胱癌病人的发病原因,这就是那些和几种化工产品有接触的病人。世界各地正在进行其它膀胱致癌剂(尤以食物、药物、食品添加剂等环境因素中的膀胱致癌剂)的鉴定工作。这一类工作中的相当一部分要求一个先决条件,这就是要有一个满意的实验引发膀胱肿瘤的动物模型,以研究一系列组织学变化。已用过的多种动物各有其不足之处。许多人仍然常选用大鼠,因为有关的膀胱生理和结构的基本资料齐备,并可以饲养到足够的数
Now only know a very small part (about 1%) of the causes of bladder cancer patients, that is, those with several chemical products in contact with patients. Other bladder cancer-causing agents (especially bladder cancer-causing agents in food, medicine, food additives and other environmental factors) are being identified all over the world. A considerable part of this type of work requires a precondition that there is a satisfactory experimental animal model of bladder neoplasia to study a series of histological changes. Many kinds of used animals have their own deficiencies. Many people still use rats often, because basic information about the physiology and structure of the bladder is available and can be kept in sufficient numbers