XRCC2 and Fanconi anemia: Two genes in the HRR pathway, RAD51, and XRCC2, cell cycle regulation (CHEK2), and Fanconi Anemia (UBE2T) were significantly upregulated in Groups 3 and 4 (p = 0.042, p = 0.0042, p = 0.021, and p = 0.023, respectively).