IBD	inflammatory bowel disease
PCR	polymerase chain reaction
rRNA	ribosomal ribonucleic acid
DNA	deoxyribonucleic acid
PASI	Psoriasis Activity and Severity Index
TNFα	tumour necrosis factor alpha
IL-1	interleukin 1
IL-6	interleukin 6
IL-8	interleukin 8
MAMPs	microbial-associated molecular patterns
PRRs	pattern recognition receptors
pDC	plasmacytoid dendritic cells
iNOS	inducible nitric oxide synthase
mDC	myeloid dendritic cells
Th17	T helper 17
IL-17	interleukin 17
IL-22	interleukin 22
IL-36α	interleukin 36 alpha
F/B ratio	Firmicutes-to-Bacteroidetes ratio
NF-κB	nuclear factor kappa light chain enhancer of activated B cells
MCFAs	medium-chain fatty acids
CRP	C-reactive protein
Kcasp1Tg-mice	keratinocyte-specific caspase-1 transgenic mice
I-FABP	intestinal fatty acid binding protein
IFN-γ	gamma interferon
Treg	T regulatory cells
SCFAs	short-chain fatty acids
PPAR	peroxisome proliferator-activated receptor
IAld	Indole-3-aldehyde
IgA	Immunoglobulin A
RANKL	receptor activator of nuclear factor kappa-B ligand
TMAO	Trimethylamine-N-oxide
TMA	trimethylamine
IL-23	interleukin 23
SpA	spondyloarthropathies
TCR	T-Cell Antigen Receptors
TNF∆ARE/+ mice	TNF overexpressing mice
MAIT	mucosal-associated invariant T
iNKT	invariant natural killer T cells
NB-UVB	narrow band ultraviolet radiation
MDA	malondialdehyde
ROS	reactive oxygen species
AGA	anti-gliadin antibodies
IBD	inflammatory bowel disease
PCR	polymerase chain reaction
rRNA	ribosomal ribonucleic acid
DNA	deoxyribonucleic acid
MAMPs	microbial-associated molecular patterns
pDC	plasmacytoid dendritic cells
TNFα	tumour necrosis factor alpha
IL-1	interleukin 1
IL-6	interleukin 6
IL-8	interleukin 8
iNOS	inducible nitric oxide synthase
mDC	myeloid dendritic cells
Kcasp1Tg-mice	keratinocyte-specific caspase-1 transgenic mice
Treg	T regulatory cells
SCFA	short-chain fatty acid
MCFAs	medium-chain fatty acids
PPAR	peroxisome proliferator-activated receptor
IAld	Indole-3-aldehyde
RANKL	receptor activator of nuclear factor kappa-B ligand
F/B ratio	Firmicutes to Bacteroidetes ratio
TMAO	Trimethylamine-N-oxide
SpA	spondyloarthropathies
TNF∆ARE/+ mice	TNF overexpressing mice
MAIT	mucosal-associated invariant T
iNKT	invariant natural killer T cells
NB-UVB	narrow band ultraviolet radiation
MDA	malondialdehyde
ROS	reactive oxygen species
CRP	C-reactive protein
AGA	anti-gliadin antibodies
PASI	Psoriasis Activity and Severity Index