Comprehensive transcriptome analysis of heart tissues in the sugen/hypoxia rats with/without treatment of chrysin

Pulmonary arterial hypertension (PAH) is a progressive disease characterized by pulmonary vascular remodeling leading to increased pulmonary vascular resistance and right ventricular (RV) hypertrophy, resulting in RV failure. RV dysfunction is a complex process that leads to cardiomyocyte hypertrophy, fibrosis, inflammation, angiogenesis, and metabolic changes. In patient with PAH, the adaptation of the RV to high pulmonary arterial pressures is the most important determinant of prognosis. However, the underlying molecular mechanism of adverse RV remodeling and dysfunction is poorly understood, and there are no currently approved therapies that improve RV function. Chrysin (5,7-dihydroxyflavone) is a phytochemical, which is a flavonoid widely present in plant sources. In various experimental models chrysin has shown to exert cardio-protective effects through its antioxidant and anti-inflammatory effects. In this study, we performed a comprehensive analysis of gene expression changes in heart tissues of rats under hypoxic conditions with chrysin treatment using RNA sequencing (RNA-seq). mRNA profiles of heart tissues were generated by RNA sequencing using the NextSeq 500 (Illumina).