Leptin administration led to increased proliferation of rat NPcells in a dose-dependent manner, as shown by MTT assay and by counting the percentage of PCNA-positive cells.
正如MTT法和计数pcna阳性细胞比例所显示：瘦素的给予与鼠np细胞的增殖成剂量依赖性关系。
2
Objective. To determine the expression of leptin and its functional receptor in herniated disc tissues, and to elucidate whether leptin can stimulate rat NPcells to proliferate in vitro.
目的：确定瘦素及其功能受体在脱出间盘组织中的表达，阐明瘦素是否能促进鼠np细胞在体外的增殖。
3
Due to its ultra-small size, NP can achieve intelligent delivery of drugs, such as deliver drug site-specifically to disease focus or targeted tissue, even into target cells.