IBD	Inflammatory bowel disease
IBS	Irritable bowel syndrome
CD	Crohn’s disease
UC	Ulcerative colitis
CDAI	Crohn’s Disease Activity Index
RI	Rachmilewitz index
ADMA	Asymmetric dimethylarginine
SDMA	Symmetric dimethylarginine
DMA	Dimethylamine
PRMT	Arginine N-methyltransferase
DDAH	Dimethylarginine dimethylaminohydrolase
NOS	Nitric oxide synthase
ODC	Ornithine decarboxylase
ARG	Arginase