Brazilian Journal of Pulmonology

ISSN (on-line): 1806-3756 | ISSN (printed): 1806-3713

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Analysis of the stability of housekeeping gene expression in the left cardiac ventricle of rats submitted to chronic intermittent hypoxia

Análise da estabilidade da expressão de genes de referência no ventrículo cardíaco esquerdo de ratos submetidos à hipóxia intermitente crônica

Guilherme Silva Julian1, Renato Watanabe de Oliveira1, Sergio Tufik1, Jair Ribeiro Chagas1,2

J Bras Pneumol.2016;42(3):211-214

Abstract PDF PT PDF EN Portuguese Text

Obstructive sleep apnea (OSA) has been associated with oxidative stress and various cardiovascular consequences, such as increased cardiovascular disease risk. Quantitative real-time PCR is frequently employed to assess changes in gene expression in experimental models. In this study, we analyzed the effects of chronic intermittent hypoxia (an experimental model of OSA) on housekeeping gene expression in the left cardiac ventricle of rats. Analyses via four different approaches-use of the geNorm, BestKeeper, and NormFinder algorithms; and 2−ΔCt (threshold cycle) data analysis-produced similar results: all genes were found to be suitable for use, glyceraldehyde-3-phosphate dehydrogenase and 18S being classified as the most and the least stable, respectively. The use of more than one housekeeping gene is strongly advised.

 


Keywords: Cell hypoxia; Reference standards; Sleep apnea, obstructive; Cardiovascular diseases; Models, animal; Polymerase chain reaction.

 


 

 


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