Toll - like受体4是一种叫做脂多糖的细菌成分，是革兰氏阴性细菌一个组成成分。
Toll-like receptor 4 is the receptor for a bacterial component called lipopolysaccharide which is a component of gram-negative bacteria.
背后的想法是这是从肠道中来的，因为酒精改变肠道的透气性和革兰氏阴性细菌以数十亿计的数量存在于肠道壁。
The thinking behind this is that it is coming from the gut because alcohol changes the permeability of the intestinal wall and gram-negative bacteria live there in their billions.
背后的想法是这是从肠道中来的，因为酒精改变肠道的透气性和革兰氏阴性细菌以数十亿计的数量存在于肠道壁。
The thinking behind this is that it is coming from the gut because alcohol changes the permeability of the intestinal wall and gram-negative bacteria live there in their billions.
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