Representative reverse transcription qPCR (RT-qPCR) profiles of 3 target genes. The mRNA amounts transcribed from POLG, POLG2, and TFAM in bone marrow samples were determined under the optimal conditions to reflect the expression levels of these genes. Each pair of panels (A/B, C/D, and E/F) in this figure denote the acquired corresponding amplification and melt curve profiling for detecting POLG, POLG2, and TFAM genes, respectively.