The mast cells, aren't considered PMNs because their nucleus is round.

肥大细胞不被认为是PMNs，由于其细胞核呈圆形。

Finally, there are the mast cells which are also non-phagocytic and they're involved in asthma and allergic responses.

最后，还有肥大细胞，它们也没有吞噬作用，还参与了哮喘和过敏反应。

If there are symptoms, antihistamine medications can be used to suppress the effect of mast cell degranulation.

如果出现相应的临床症状，抗组胺药可以被用来抑制肥大细胞的脱颗粒效应。

The food proteins get noticed by IgE, which activates the mast cells.

食物中的蛋白质会被 IgE 注意到，从而激活肥大细胞。

Well, it could be mast cell leukemia.

也可能是肥大细胞白血病。

The IgE-primed mast cells release their histamine, which causes nearby capillaries to dilate - flooding the facial tissues with fluid.

致敏肥大细胞释放的组胺通过增加周围毛细血管的渗透性，最终导致面部组织的充血水肿。

We also know that, for example, dogs with short hair can be more prone to developing something called a mast cell tumor.

我们还知道，例如，毛发短的狗可能更容易患肥大细胞肿瘤。

Because the eyes and nose are portals of entry for infections, there are lots of mast cells around those areas for extra protection.

由于眼睛和鼻子是外来性感染侵入机体的主要通道，肥大细胞在这些区域大量聚集来加强防护。

It's believed that these rashes appear due to a release of histamine from immune cells in the skin called mast cells.

据信，这些皮疹的出现是由于免疫细胞释放组胺所致在皮肤中称为肥大细胞。

First they activate a part of the immune system called a mast cell, which then expels a lot of chemicals, like histamines.

首先，它们激活称为肥大细胞的免疫系统的一部分， 然后排出大量化学物质，如组胺。