The donated milk was probably to blame: recent laboratory research on rats has shown that rats briefly exposed to the substances aflatoxin tend to develop liver cancer when fed casein, a milk protein.
捐赠的牛奶可能是罪魁祸首：最近对老鼠的实验室研究表明，给老鼠喂食酪蛋白（一种牛奶蛋白）时，短暂接触过黄曲霉毒素物质的老鼠容易患肝癌。
An Argentine laboratory announced that it had created the world's first transgenic cow, using human genes that will allow the animal to produce the equivalent of mothers' milk.
一个阿根廷的实验室宣布他们已经成功导入人类基因并培育出世界上第一头转基因奶牛。 导入的人类基因能够使奶牛产生含有人乳类似物的牛乳。
Japanese investigators isolated a protein, kininogen, from milk and demonstrated in laboratory experiments that it promotes bone growth.
日本的调查人员从牛奶中分离出一种叫做激肽原的蛋白质，并用实验室实验证明了它确实能促进骨骼生长。
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