Figure 7: Electrophoresis of PCR product of NKG2D, DAP10, and NF-κB mRNA in different groups. (a) stands for NKG2D, (b) for DAP10, and (c) for NF-κB. M stands for marker DL600, C for NK cells, A for NK cells + VIP, and B for NK cells + VIP + VIP antagonist. The length of PCR products of NKG2D, DAP10, and NF-κB was 365 bp, 282 bp, and 326 bp.