结论：去整合蛋白和金属蛋白水解酶10和17的基因表达水平可能不是老龄人易发阿尔茨海默病的生物学基础。
CONCLUSION: The expression levels of ADAM 10 and ADAM 17 in hippocampus of old men may not be a part of biologic foundation of Alzheimer disease.
方法：应用基因芯片、反转录PCR（RT-PCR）、流式细胞术等方法从分子和蛋白水平检测两种细胞系中CXCR4的表达情况。
Methods: Gene chip and RT-PCR were used to study expression of CXCR4 mRNA in two cell lines and the CXCR4 surface expression was also examined by flow cytometry analysis.
分析影响血清p 21蛋白水平的因素、及炼焦工龄与血清p 21蛋白表达水平的关系。
Some affecting factors of serum P21 and the correlation of the exposed time and serum P21 were analysed.
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