Analysis of the expression of transcription factors required for cardiogenesis revealed downregulation of key cardiac transcription factors such as the serum response factor, Gata4, and Nkx2–5.

分析这些心脏基因所转录因子达，显示出几种心脏转录因子失调，如血浆反应因子，Gata4和Nkx2–5。