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. 2017 May 31;8:335. doi: 10.3389/fphys.2017.00335

Graphical Abstract.

Graphical Abstract

Poly (ADP-ribose) polymerase (PARP) catalyzes the transfer of ADP-ribose (ADPR) in nucleus during the DNA repair processes. TRPM2 channel is gated by ADPR and reactive oxygen species (ROS) through activation of ADP-ribose (ADPR) pyrophosphate enzyme in its nudix domain motif although it was inhibited by N-(p-amylcinnamoyl)anthranilic acid (ACA). TRPV1 channel is also activated by ROS and capsaicin (CAPS) but it is inhibited by capsazepine (CapZ).