分离、鉴定大鼠骨骺生长板增殖区软骨细胞,克隆甲状旁腺激素相关蛋白（PTHrp）基因并构建真核表达载体
中层区是由增殖能力旺盛的分生组织细胞所构成；
The middle region was composed of meristematic tissue whose cells had high proliferative activity (Plate Ib).
目的从胚胎大鼠海马和上丘脑区中分离、培养神经干细胞，并进行体外增殖能力的比较。
Objective To compare the regional specificity in proliferation capacity of neural stem cells derived from hippocampus and epithalamus: study with rats.
目的：检测环上颌骨骨缝区增殖细胞核抗原阳性表达，探讨缝牵张促进上颌骨生长发育的作用。
AIM To detect proliferating cell nuclear antigen PCNA positive expression in suture cells around maxilla and explore the improvement of suture expansion on the growth and development of maxilla.
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