结论脑膜瘤的增殖活性和细胞凋亡与肿瘤级别相关；
Conclusions The proliferative activity and apoptosis of meningiomas are correlated with the tumor grade.
随着细胞凋亡研究的深入，人类逐渐认识到细胞凋亡与肿瘤的发生密切相关，并成为当今研究热点之一。
With the research developed, people begin to realize the correlations between apoptosis and the occurrence of tumors, which has become a hot topic in this field.
结论：肿瘤血管生成是肿瘤细胞增殖的前提和基础，二者之间的变化与肿瘤细胞凋亡、坏死的变化相关。
Conclusion: the angiogenesis of tumor is a premise and base of tumor cells proliferation. Angiogenesis and cell proliferation affect the apoptosis and necrosis of tumor cells.
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