此时,他们的怀疑得到了证实。这种喂养方法减少了老化和癌化细胞的数量,表明微生物确实是诱发癌症的因素。
Dr Yoshimoto and his team then started to focus on which bacteria were causing theproblem.
接下来,Yoshimoto和他和团队开始研究是何种微生物导致问题。
First, they discovered they could get the same cancer-suppressing effect using justvancomycin, an antibiotic that kills only Gram-positive bacteria.
首先,他们发现,用专杀革兰氏阳性细菌的抗生素万古霉素进行实验,也能取得相同的抑癌效果。
They also observed, as prior research had suggested, that a fatty diet raised levels of achemical called deoxycholic acid and that antibiotics lowered it.
同时,他们发现,高脂肪饮食会提升化学物质脱氧胆酸的水平,万古霉素会使其降低。
Previous research had demonstrated too that DCA damages DNA in a way that promotessenescence.
先前的研究也发现,DCA会以一种诱发衰老的方式破坏DNA。
Dr Yoshimoto showed that lowering DCA levels in mice did indeed reduce the development ofliver cancer.
Yoshimoto让人们看到,降低实验小鼠体内DCA的水平确实会减少诱发肝癌的机率。
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