骨髓组织生成

These changes occur in many tissues but are best known in the precursors of red cells in the bone marrow which is said to exhibit megaloblastic erythroblastosis. In addition to nuclear enlargement in megaloblasts there is increased amount of cytoplasm, cytoplasmic basophilia due to excessive RNA and premature haemoglobinisation as judged by the immature state of the nucleus.

这些变化出现于许多组织，但在巨成红细胞生成的骨髓红细胞前身中最好识别，巨成红细胞除核增大外，胞浆量增加，由于RNA过多致胞浆呈嗜碱性和早熟的血红蛋白形成，这是根据其核的不成熟状态而作出的判断。

Histological observation: Four weeks after implantation, porcine cancellous bone scaffold/bone marrow stromal cells complex appeared new bone formation and scaffold's degradation, which significantly increased in 8 weeks; In 12 weeks, new bone continued to increase and changed gradually to mature bone, a small amount of the Havers system was seen, the trabecular bone was not typical, capillary proliferated obviously, few residual scaffolds were seen, and no inflammatory cells were observed.

组织学观察：猪松质骨支架/骨髓基质干细胞复合体植入后4周开始有新骨生成，支架开始降解；8周时新骨的形成及支架的降解都明显增加；12周时新骨继续增加，逐渐向成熟骨组织转变，可见少量哈佛系统，但骨小梁尚不典型，毛细血管增生明显，少量支架残留，未见炎症细胞。

Do you know, i need you to come back

你知道吗，我需要你回来

Yang yinshu、Wang xiangsheng、Li decang,The first discovery of haemaphysalis conicinna.

1〕 杨银书，王祥生，李德昌。安徽省首次发现嗜群血蜱。