NMDA receptor	N-methyl-d-aspartate receptor
WHO	World Health Organization
BMI	body mass index
POMC	proopiomelanocortin
AgRP	agouti-related peptide
α-MSH	alpha melanocyte-stimulating hormone
GABA	gamma amino butyric acid
VTA	ventral tegmental area
GLP-1	glucagon-like peptide-1
CSF	cerebrospinal fluid
SR	serine racemase
DAAO	d-amino acid oxidase
cAMP	3′,5′-cyclic adenosine monophosphate
PKA	protein kinase A
DARPP-32	dopamine- and cAMP-regulated phosphoprotein, molecular weight 32 kilo Dalton
AMPA	α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid
HFD	high-fat diet
HSD	high-sucrose diet
HPD	high-protein diet