【摘要】 目的探讨用于老年大鼠组织基因mRNA表达分析的内参基因选择。方法用实时反转录PCR技术评价5个管家基因3-磷酸甘油醛脱氢酶(G3pd)、β-肌动蛋白(ACTB)、H3组氨酸3B(H3f3b)、酸性核糖体磷蛋白P0(Arbp)和18S核糖体RNA(18S)的表达水平。结果老年大鼠肾组织中表达最稳定的是管家基因ACTB,心脏和肺组织中表达最稳定的是G3pd;而Arbp在不同组织之间的表达差异最小。结论老年大鼠组织间基因表达mRNA分析应使用至少两个参照基因:一个是核糖体基因18S,另一个适合的内参基因是Arbp。更多还原

【Abstract】 Objective To investigate the proper inner control genes suitable for mRNA expression level comparison of aging rat tissues.Methods Real-time reverse transcription PCR was used to examine in aging rat tissues the expression level of G3pd(glyceraldehyde-3-phosphate dehydrogenase),ACTB(β-actin),H3f3b(H3 histone,family 3B),Arbp(acidic ribosomal phosphoprotein P0)and 18S(18S ribosomal RNA).Results The most stably expressed housekeeping gene in aging rat kidney was ACTB,in heart and lung G3pd showed the minimum variation;Arbp expression was the most stable one in different tissues.Conclusion For aging rat intra-tissue mRNA normalization at least two housekeeping genes should be used: one is the ribosomal RNA gene 18S and another one is Arbp.更多还原