β防御素2在不同月龄大鼠肺组织表达研究
肺;,β防御素;,基因表达;,大鼠,【主题词】肺;β防御素;基因表达;大鼠,1材料和方法,2结果,3讨论,参考文献
【摘要】 目的 研究老龄(18~20月)和青年(2~3月)大鼠肺组织表达β防御素2(βdefensin2,BD2)的量有无差别。 方法 老年和青年健康Wistar大鼠各10只,采用逆转录多聚酶链反应方法检测肺组织BD2基因表达水平;HE染色切片来了解肺组织的情况。 结果 老龄大鼠肺组织BD2基因表达水平为0208±0138,青年为0351±0206,2组差别无显著性(P>005)。HE染色切片老年大鼠肺组织可见肺泡断裂、肺间隔增厚、酸性细胞渗出等改变,而青年大鼠没有上述改变。 结论 基因水平上青年大鼠肺组织BD2稍高于老龄大鼠,但无统计学意义,提示老年人易患呼吸道感染与BD2的表达可能无关,但仍需进一步的研究。【主题词】 肺; β防御素; 基因表达; 大鼠
Study on the expression of βdefensin2 gene in the pulmonary tissues of rats of different months
CHANG Xinxia,CHEN Ziwei.
Department of Geriatrics,Xiamen Zhongshan Hospital,Xiamen 361000 China;DONG Birong.West China Hospital,Sichuan University,Chengdu 610004 China
【Abstract】 Objective To investigate the exspression of βdefensin2(BD2) gene in the pulmonary tissues of young (23 months) and old (1820 months) rats. Methods Total RNA was isolated from the pulmonary tissues of the rats.BD2 mRNA was measured by RTPCR.The pulmonary tissues were observed by H&E dyeing. Resukts The expression of BD2 gene was lower in the old rats(0208±0138) than that (0351±0206) in the young rats ......
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