PARP PARG 7 article 6 enzyme activity 6 nicotinamide adenine dinucleotide adenosine diphosphate ribosyltransferase 6 nonhuman 6 Animals 4 DNA 4 DNA Damage 4 DNA Repair 4 DNA damage 4 Eukaryota 4 Poly(ADP-ribose) Polymerases 4 Trypanosoma cruzi 4 catalysis 4 cell nucleus 4 controlled study 4 hydrogen peroxide 4 nicotinamide 4 nucleotide sequence 4 theophylline 4 thymidine 4 CELL CYCLE 3 CICLO CELULAR 3 ENFERMEDAD DEL SUEÑO 3 ESTRES OXIDATIVO 3 OXIDATIVE STRESS 3 PAR 3 TRYPANOSOMA BRUCEI 3 3 aminobenzamide 2