Because there are few gaps between the cells, the protease inhibitors must be able to pass through the cell membranes to reach the brain tissues beyond, and most large molecules cannot breach this so-called blood-brain barrier.
Because there are few gaps between the cells, the protease inhibitors must be able to pass through the cell membranes to reach the brain tissues beyond, and most large molecules cannot breach this so-called blood-brain barrier.
因为管壁细胞之间少有间隙，因此蛋白酶抑制剂必须要能够穿透细胞膜，才能够到达血管外的脑组织，而大分子大都无法冲破这层所谓的「血脑屏障」。