关于云芝在放疗中的作用，这段话怎么理解？

The first of three prospective studies for head and neck cancer had mixed results: PSK reduced the immune inhibition by radiation (as measured by PHA skin reaction and absolute number of T-lymphocytes in peripheral blood), but had no effect on the transformation of lymphocytes⁶⁰. The second study of gastric cancer patients and healthy volunteers found that tumor necrosis factor alpha and interleukin-8 gene expression were significantly induced in five of 12 volunteers and four of nine cancer patients⁶¹. The third prospective controlled trial reported that PSK reduced the decline in leukocytes and platelets associated with chemotherapy, but not as much as another immune stimulator, Granulocyte Colony Stimulating Factor (G-CSF). PSK and G-CSF combined were associated with actual recovery of these blood counts; however, measures of statistical significance were not reported⁶³.

上面这段话，是说云芝psk在放疗中的作用，但是我没看懂第一段话，reduce the immune inhibition到底是好还是不好。好像是不好是吗？请英文比较牛的来看看理解一下。谢谢。

 

所有跟帖： 

• 负负得正，应该有好处。 -fuz- ♂ (0 bytes) () 03/03/2020 postreply 16:30:04

• 不一定吧，它好像说放疗中吃云芝会降低效果？ -raylight- ♂ (0 bytes) () 03/03/2020 postreply 16:58:54

• 原意应为：放疗引起免疫抑制，用了p后减轻了这种抑制。如果正常免疫功能对治疗效果有好处，那么用P有益 -fuz- ♂ (0 bytes) () 03/03/2020 postreply 17:04:57