The intestinal morphology, permeability of intestinal mucosa, bacterial translocation and gut immune barrier function were compared.

观察肠道形态学、肠道黏膜通透性、肠道细菌易位情况和血浆内毒素水平及肠道免疫功能检测。

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CONCLUSION: the structure of intestinal mucosa is damaged in the earlier stage of starvation in rats, accompanied by endotoxin translocation and dysfunction of intestinal mucosal immune barrier.

结论：大鼠饥饿后早期确有肠黏膜组织结构受损，发生内毒素移位，同时伴有肠黏膜免疫学屏障受损。

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If the cells did cross the placental barrier, the child's immune system should have recognised them as foreign invaders and destroyed them.

如果癌细胞确实穿过胎盘屏障，孩子的免疫系统应该会将它们视为入侵者，从而消灭它们。

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Some tumours appear capable of throwing up a "barrier" around their fringes which stops immune cells getting hold of fragments of the tumour which can be used to coordinate an attack on the abnormal cells.

BBC: NEWS | Health | Immune boost 'widens cancer fight'