4HT	4-hydroxy-2,2,6,6-tetramethylpiperidin-1-oxyl
AcX	Acryloyl-X SE
APS	ammonium persulfate
BSA	bovine serum albumin
ECM	extracellular matrix
EDTA	ethylenediaminetetraacetic acid
ENS	enteric nervous system
ExM	expansion microscopy
GFAP	glial fibrillary acidic protein
GI	gastrointestinal
NADPH-d	reduced nicotinamide adenine dinucleotide phosphate–diaphorase
PBS	phosphate-buffered saline
ProK	Proteinase K
RT	room temperature
SD	standard deviation
STED	Stimulated Emission Depletion
STORM	Stochastic Optical Reconstruction Microscopy
TEMED	tetramethylethylenediamine