PMID- 29682569 OWN - NLM STAT- MEDLINE DCOM- 20180920 LR - 20220408 IS - 2314-6141 (Electronic) IS - 2314-6133 (Print) VI - 2018 DP - 2018 TI - Functions and Signaling Pathways of Amino Acids in Intestinal Inflammation. PG - 9171905 LID - 10.1155/2018/9171905 [doi] LID - 9171905 AB - Intestine is always exposed to external environment and intestinal microorganism; thus it is more sensitive to dysfunction and dysbiosis, leading to intestinal inflammation, such as inflammatory bowel disease (IBD), irritable bowel syndrome (IBS), and diarrhea. An increasing number of studies indicate that dietary amino acids play significant roles in preventing and treating intestinal inflammation. The review aims to summarize the functions and signaling mechanisms of amino acids in intestinal inflammation. Amino acids, including essential amino acids (EAAs), conditionally essential amino acids (CEAAs), and nonessential amino acids (NEAAs), improve the functions of intestinal barrier and expressions of anti-inflammatory cytokines and tight junction proteins but decrease oxidative stress and the apoptosis of enterocytes as well as the expressions of proinflammatory cytokines in the intestinal inflammation. The functions of amino acids are associated with various signaling pathways, including mechanistic target of rapamycin (mTOR), inducible nitric oxide synthase (iNOS), calcium-sensing receptor (CaSR), nuclear factor-kappa-B (NF-kappaB), mitogen-activated protein kinase (MAPK), nuclear erythroid-related factor 2 (Nrf2), general controlled nonrepressed kinase 2 (GCN2), and angiotensin-converting enzyme 2 (ACE2). FAU - He, Fang AU - He F AD - College of Animal Science and Technology, Southwest University, Chongqing 400716, China. AD - College of Animal Science, South China Agricultural University, Guangzhou 510642, China. FAU - Wu, Chenlu AU - Wu C AUID- ORCID: 0000-0002-7435-3883 AD - College of Animal Science and Technology, Southwest University, Chongqing 400716, China. FAU - Li, Pan AU - Li P AD - College of Animal Science and Technology, Southwest University, Chongqing 400716, China. FAU - Li, Nengzhang AU - Li N AUID- ORCID: 0000-0002-3938-2363 AD - College of Animal Science and Technology, Southwest University, Chongqing 400716, China. FAU - Zhang, Dong AU - Zhang D AD - College of Veterinary Medicine, Yangzhou University, 48 Wenhui East Road, Yangzhou, Jiangsu 225009, China. FAU - Zhu, Quoqiang AU - Zhu Q AD - College of Veterinary Medicine, Yangzhou University, 48 Wenhui East Road, Yangzhou, Jiangsu 225009, China. FAU - Ren, Wenkai AU - Ren W AUID- ORCID: 0000-0002-8145-8907 AD - College of Animal Science, South China Agricultural University, Guangzhou 510642, China. FAU - Peng, Yuanyi AU - Peng Y AUID- ORCID: 0000-0002-5572-9945 AD - College of Animal Science and Technology, Southwest University, Chongqing 400716, China. LA - eng PT - Journal Article PT - Review DEP - 20180226 PL - United States TA - Biomed Res Int JT - BioMed research international JID - 101600173 RN - 0 (Amino Acids) RN - 0 (Anti-Inflammatory Agents) SB - IM MH - Amino Acids/*metabolism MH - Animals MH - Anti-Inflammatory Agents/pharmacology/therapeutic use MH - Humans MH - Inflammation/drug therapy/*metabolism MH - Intestinal Mucosa/*metabolism MH - Intestines/drug effects MH - Signal Transduction/drug effects/*physiology PMC - PMC5846438 EDAT- 2018/04/24 06:00 MHDA- 2018/09/21 06:00 PMCR- 2018/02/26 CRDT- 2018/04/24 06:00 PHST- 2017/09/30 00:00 [received] PHST- 2017/11/30 00:00 [revised] PHST- 2017/12/13 00:00 [accepted] PHST- 2018/04/24 06:00 [entrez] PHST- 2018/04/24 06:00 [pubmed] PHST- 2018/09/21 06:00 [medline] PHST- 2018/02/26 00:00 [pmc-release] AID - 10.1155/2018/9171905 [doi] PST - epublish SO - Biomed Res Int. 2018 Feb 26;2018:9171905. doi: 10.1155/2018/9171905. eCollection 2018.