ADMA	asymmetric dimethyl-l-arginine
AP site	apurinic/apyrimidinic site; abasic site
BER	base excision repair
BRCA1	breast cancer 1
DDR	DNA-damage response
DSB	DNA double strand breaks
EC	endothelial cell
HR	homologous recombination
MMEJ	microhomology-mediated end joining
MMR	mismatch repair
NER	nucleotide excision repair
NHEJ	non-homologous end joining
PAEC	pulmonary artery endothelial cell
PAH	pulmonary arterial hypertension
PARP1	poly(ADP-ribose) polymerase 1
PASMC	pulmonary artery smooth muscle cell
PH	pulmonary hypertension
RNS	reactive nitrogen species
ROS	reactive oxygen species
SSB	DNA single-strand break