SCFA	Short-chain Fatty Acid
5-HT	5-Hydroxytryptamine
FC	Functional Constipation
GTT	Gut Transit Time
SCF	Stem Cell Factor
RCT	Randomized Controlled Trial
GPR41/43	G Protein-Coupled Receptor 41/43
SERT	Serotonin Transporter
CGRP	Calcitonin Gene-Related Peptide
EC	Enterochromaffin Cell
TRP	Transient Receptor Potential
TPH	Tryptophan Hydroxylase
OR	Olfactory Receptor
5-HTP	5-Hydroxytryptophan
TGR5	Takeda G protein-coupled receptor 5
BDNF	Brain-Derived Neurotrophic Factor
NT	Neurotensin
NANC	Non-Adrenergic Non-Cholinergic
VIP	Vasoactive Intestinal Peptide
SS	Somatostatin
ET-1	Endothelin-1
MTL	Motilin
GAS	Gastrin
SP	Substance P
Ach	Acetylcholine
ICC	Interstitial Cells of Cajal
AQP	Aquaporin
PCA	Principal Component Analysis
FSE	Fuzzy Synthesis Evaluation