{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,8]],"date-time":"2026-07-08T11:52:21Z","timestamp":1783511541846,"version":"3.55.0"},"reference-count":40,"publisher":"Wiley","issue":"2","license":[{"start":{"date-parts":[[2021,7,18]],"date-time":"2021-07-18T00:00:00Z","timestamp":1626566400000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/501100001809","name":"National Natural Science Foundation of China","doi-asserted-by":"publisher","award":["31730092"],"award-info":[{"award-number":["31730092"]}],"id":[{"id":"10.13039\/501100001809","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["scijournals.onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["J Sci Food Agric"],"published-print":{"date-parts":[[2022,1,30]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:title>BACKGROUND<\/jats:title><jats:p>Intestinal amino acid (AA) chemosensing has been implicated in the regulation of AA absorption, nitrogen metabolism and hormone release, thereby playing an indispensable role in maintaining metabolic homeostasis in mammals. The objective of this experiment was to study the distribution of free AA and the expression of AA transporting related genes along the small and large intestines of Liuyang black goats, together with the effects of dietary corn grain replaced by dietary corn gluten feed (CGF).<\/jats:p><\/jats:sec><jats:sec><jats:title>RESULTS<\/jats:title><jats:p>The CGF replacement did not alter (<jats:italic>P<\/jats:italic>\u2009&gt;\u20090.05) AA profiles and the expression of AA transporting related genes in the intestinal mucosa. Intriguingly, in terms of gut regions, the concentrations of aspartic acid and glutamic acid in the mucosa of ileum were remarkably less (<jats:italic>P<\/jats:italic>\u2009&lt;\u20090.001) than those in the large intestine. Moreover, the concentrations of most cationic and neutral AAs shared the same distribution pattern, with the jejunum and ileum holding the greatest and least levels (<jats:italic>P<\/jats:italic>\u2009&lt;\u20090.05), respectively. It was notable that the expression of both anionic and cationic AA transporters in the small intestine was exceedingly greater (<jats:italic>P<\/jats:italic>\u2009&lt;\u20090.001) than those in the large intestine. As for transporters of neutral AA, system ASC, L, and A showed an extremely distinctive expression pattern.<\/jats:p><\/jats:sec><jats:sec><jats:title>CONCLUSION<\/jats:title><jats:p>The jejunum would be the primary site of transporting AA, while CGF substitution does not exert a disadvantageous influence on the AA chemosensing systems of the first\u2010pass metabolism. \u00a9 2021 Society of Chemical Industry.<\/jats:p><\/jats:sec>","DOI":"10.1002\/jsfa.11412","type":"journal-article","created":{"date-parts":[[2021,7,4]],"date-time":"2021-07-04T04:45:17Z","timestamp":1625373917000},"page":"868-875","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":4,"title":["Distribution of free amino acids and <scp>mRNA<\/scp> expression of their corresponding transporters in the intestinal mucosa of goats feeding on a corn grain <i>versus<\/i> corn gluten diet"],"prefix":"10.1002","volume":"102","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-4171-3395","authenticated-orcid":false,"given":"Jian","family":"Wu","sequence":"first","affiliation":[{"name":"CAS Key Laboratory of Agro\u2010Ecological Processes in Subtropical Region, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, Institute of Subtropical Agriculture The Chinese Academy of Sciences  Changsha P. R. China"},{"name":"University of Chinese Academy of Sciences  Beijing P. R. China"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xiaoli","family":"Zhang","sequence":"additional","affiliation":[{"name":"CAS Key Laboratory of Agro\u2010Ecological Processes in Subtropical Region, National Engineering Laboratory for Pollution Control and Waste Utilization in Livestock and Poultry Production, Hunan Provincial Key Laboratory of Animal Nutritional Physiology and Metabolic Process, Institute of Subtropical Agriculture The Chinese Academy of Sciences  Changsha P. R. China"},{"name":"University of Chinese Academy of Sciences  Beijing P. R. 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