PAR	poly(ADP-ribose)
MAR	mono(ADP-ribose)
ARTs	ADP-ribose transferases
NAD+	nicotinamide adenine dinucleotide
NA	nicotinic acid
NAM	nicotinamide
NMN	nicotinamide mononucleotide
NR	nicotinamide riboside
NRH	NR reduced form
NRK	nicotinamide riboside kinase
NRT	NR transporter
NNT	nicotinamide nucleotide transhydrogenase
NAMPT	nicotinamide phosphoribosyltransferase
NaNMN	nicotinic acid mononucleotide
NAPRT	nicotinic acid phosphoribosyltransferase
NMNATs	nicotinamide mononucleotide adenylyltransferase
ADK	adenosine kinase
CD38	NAD+ glycohydrolase (ADPR hydrolase)
CD73	ecto-5′-nucleotidase
NTPDase	nucleoside triphosphate diphosphohydrolase
ENPP	ectonucleotide pyrophosphatase/phosphodiesterase
MNAM	1-methylnicotinamide
Nnmt	nicotinamide-N-methyltransferase
QPRT	quinolinate phosphoribosyltransferase
QA	quinolinic acid
Kyn	kynurenine
HDAC	histone deacetylase
Sirt	sirtuin, NAD+-dependent HDAC