{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,4,8]],"date-time":"2026-04-08T13:38:06Z","timestamp":1775655486859,"version":"3.50.1"},"reference-count":21,"publisher":"Elsevier BV","issue":"1","license":[{"start":{"date-parts":[[2009,1,1]],"date-time":"2009-01-01T00:00:00Z","timestamp":1230768000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/tdm\/userlicense\/1.0\/"},{"start":{"date-parts":[[2009,1,1]],"date-time":"2009-01-01T00:00:00Z","timestamp":1230768000000},"content-version":"tdm","delay-in-days":0,"URL":"https:\/\/www.elsevier.com\/legal\/tdmrep-license"},{"start":{"date-parts":[[2009,1,1]],"date-time":"2009-01-01T00:00:00Z","timestamp":1230768000000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-017"},{"start":{"date-parts":[[2009,1,1]],"date-time":"2009-01-01T00:00:00Z","timestamp":1230768000000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-037"},{"start":{"date-parts":[[2009,1,1]],"date-time":"2009-01-01T00:00:00Z","timestamp":1230768000000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-012"},{"start":{"date-parts":[[2009,1,1]],"date-time":"2009-01-01T00:00:00Z","timestamp":1230768000000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-029"},{"start":{"date-parts":[[2009,1,1]],"date-time":"2009-01-01T00:00:00Z","timestamp":1230768000000},"content-version":"stm-asf","delay-in-days":0,"URL":"https:\/\/doi.org\/10.15223\/policy-004"}],"content-domain":{"domain":["ajog.org","clinicalkey.com","clinicalkey.com.au","clinicalkey.es","clinicalkey.fr","clinicalkey.jp","elsevier.com","sciencedirect.com"],"crossmark-restriction":true},"short-container-title":["American Journal of Obstetrics and Gynecology"],"published-print":{"date-parts":[[2009,1]]},"DOI":"10.1016\/j.ajog.2008.06.054","type":"journal-article","created":{"date-parts":[[2008,11,26]],"date-time":"2008-11-26T09:14:18Z","timestamp":1227690858000},"page":"91.e1-91.e7","update-policy":"https:\/\/doi.org\/10.1016\/elsevier_cm_policy","source":"Crossref","is-referenced-by-count":21,"title":["The transplacental transport of essential amino acids in uncomplicated human pregnancies"],"prefix":"10.1016","volume":"200","author":[{"given":"Henry L.","family":"Galan","sequence":"first","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Anna Maria","family":"Marconi","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Cinzia L.","family":"Paolini","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Alex","family":"Cheung","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Frederick C.","family":"Battaglia","sequence":"additional","affiliation":[],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"78","reference":[{"key":"10.1016\/j.ajog.2008.06.054_bib1","doi-asserted-by":"crossref","first-page":"145","DOI":"10.1053\/plac.2000.0612","article-title":"Placental transport and metabolism of amino acids","volume":"22","author":"Battaglia","year":"2001","journal-title":"Placenta"},{"key":"10.1016\/j.ajog.2008.06.054_bib2","doi-asserted-by":"crossref","first-page":"23","DOI":"10.1385\/ENDO:19:1:23","article-title":"Transport and metabolism of amino acids in placenta","volume":"19","author":"Regnault","year":"2002","journal-title":"Endocrine"},{"key":"10.1016\/j.ajog.2008.06.054_bib3","doi-asserted-by":"crossref","first-page":"E31","DOI":"10.1152\/ajpendo.2001.280.1.E31","article-title":"An in vivo study of ovine placental transport of essential amino acids","volume":"280","author":"Paolini","year":"2001","journal-title":"Am J Physiol Endocrinol Metab"},{"key":"10.1016\/j.ajog.2008.06.054_bib4","doi-asserted-by":"crossref","first-page":"5427","DOI":"10.1210\/jcem.86.11.8036","article-title":"Placental transport of leucine, phenylalanine, glycine and proline in intrauterine growth restricted pregnancies","volume":"86","author":"Paolini","year":"2001","journal-title":"J Clin Endocrinol Metab"},{"key":"10.1016\/j.ajog.2008.06.054_bib5","doi-asserted-by":"crossref","first-page":"571","DOI":"10.1203\/00006450-199505000-00002","article-title":"In vivo placental transport of glycine and leucine in human pregnancies","volume":"37","author":"Cetin","year":"1995","journal-title":"Pediatr Res"},{"key":"10.1016\/j.ajog.2008.06.054_bib6","first-page":"935","article-title":"Down-regulation of placental transport of amino acids precedes the development of intrauterine growth restriction in rats fed a low protein diet","volume":"576","author":"Jansson","year":"2006","journal-title":"J Physiol"},{"key":"10.1016\/j.ajog.2008.06.054_bib7","doi-asserted-by":"crossref","first-page":"159","DOI":"10.1016\/S0022-3476(67)80066-0","article-title":"A practical classification of newborn infants by weight and gestational age","volume":"71","author":"Battaglia","year":"1967","journal-title":"J Pediatr"},{"key":"10.1016\/j.ajog.2008.06.054_bib8","first-page":"203","article-title":"Standard di peso alla nascita in Italia","volume":"CXII","author":"Parazzini","year":"1991","journal-title":"Ann Ost Gin Med Perin"},{"key":"10.1016\/j.ajog.2008.06.054_bib9","doi-asserted-by":"crossref","first-page":"114","DOI":"10.1203\/00006450-199907000-00019","article-title":"Steady state maternal-fetal leucine enrichments in normal and intrauterine growth-restricted pregnancies","volume":"46","author":"Marconi","year":"1999","journal-title":"Pediatr Res"},{"key":"10.1016\/j.ajog.2008.06.054_bib10","doi-asserted-by":"crossref","first-page":"E942","DOI":"10.1152\/ajpendo.1998.275.6.E942","article-title":"Relationship of fetal alanine uptake and placental alanine metabolism to maternal plasma alanine concentration","volume":"38","author":"Timmerman","year":"1998","journal-title":"Am J Physiol Endocrinol Metab"},{"key":"10.1016\/j.ajog.2008.06.054_bib11","doi-asserted-by":"crossref","first-page":"531","DOI":"10.1016\/S0143-4004(98)91047-5","article-title":"Uptake and transport by the ovine placenta of neutral nonmetabolizable amino acids with different transport system affinities","volume":"19","author":"J\u00f3\u00fawik","year":"1998","journal-title":"Placenta"},{"key":"10.1016\/j.ajog.2008.06.054_bib12","doi-asserted-by":"crossref","first-page":"447","DOI":"10.1016\/S0002-9378(99)70230-9","article-title":"Fetal supply of amino acids and amino nitrogen after maternal infusion of amino acids in pregnant sheep","volume":"180","author":"J\u00f3\u00fawik","year":"1999","journal-title":"Am J Obstet Gynecol"},{"key":"10.1016\/j.ajog.2008.06.054_bib13","doi-asserted-by":"crossref","first-page":"E376","DOI":"10.1152\/ajpendo.00428.2003","article-title":"Reciprocal inhibition of umbilical uptake within groups of amino acids","volume":"286","author":"J\u00f3\u00fawik","year":"2004","journal-title":"Am J Physiol Endocrinol Metab"},{"key":"10.1016\/j.ajog.2008.06.054_bib14","doi-asserted-by":"crossref","first-page":"354","DOI":"10.1053\/plac.2002.0910","article-title":"Umbilical threonine uptake during maternal threonine infusion in sheep","volume":"24","author":"Paolini","year":"2003","journal-title":"Placenta"},{"key":"10.1016\/j.ajog.2008.06.054_bib15","doi-asserted-by":"crossref","first-page":"477","DOI":"10.1016\/S0002-9378(99)70581-8","article-title":"Umbilical amino acid uptake at increasing maternal amino acid concentrations: effect of a maternal amino acid infusate","volume":"181","author":"Ronzoni","year":"1999","journal-title":"Am J Obstet Gynecol"},{"key":"10.1016\/j.ajog.2008.06.054_bib16","doi-asserted-by":"crossref","first-page":"741","DOI":"10.1067\/mob.2002.124291","article-title":"The effect of a maternal infusion of amino acids on umbilical uptake in pregnancies complicated by intrauterine growth restriction","volume":"187","author":"Ronzoni","year":"2002","journal-title":"Am J Obstet Gynecol"},{"key":"10.1016\/j.ajog.2008.06.054_bib17","doi-asserted-by":"crossref","first-page":"E31","DOI":"10.1152\/ajpendo.2001.280.1.E31","article-title":"An in vivo study of ovine placental transport of essential amino acids","volume":"280","author":"Paolini","year":"2001","journal-title":"Am J Physiol Endocrinol Metab"},{"key":"10.1016\/j.ajog.2008.06.054_bib18","doi-asserted-by":"crossref","first-page":"432","DOI":"10.1046\/j.1469-0705.2000.00208.x","article-title":"Umbilical vein blood flow in growth restricted fetuses","volume":"16","author":"Ferrazzi","year":"2000","journal-title":"Ultrasound Obstet Gynecol"},{"key":"10.1016\/j.ajog.2008.06.054_bib19","doi-asserted-by":"crossref","first-page":"649","DOI":"10.1016\/S0143-4004(97)90006-0","article-title":"Identification of two leucine-sensitive lysine transport activities in human placental basal membrane","volume":"18","author":"Furesz","year":"1997","journal-title":"Placenta"},{"key":"10.1016\/j.ajog.2008.06.054_bib20","doi-asserted-by":"crossref","first-page":"532","DOI":"10.1203\/00006450-199810000-00011","article-title":"Placental transport of leucine and lysine is reduced in intrauterine growth restriction","volume":"44","author":"Jansson","year":"1998","journal-title":"Pediatr Res"},{"key":"10.1016\/j.ajog.2008.06.054_bib21","doi-asserted-by":"crossref","first-page":"174","DOI":"10.1016\/S0002-9378(99)70456-4","article-title":"Relationship of umbilical vein blood flow to growth parameters in the human fetus","volume":"181","author":"Barbera","year":"1999","journal-title":"Am J Obstet Gynecol"}],"container-title":["American Journal of Obstetrics and Gynecology"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S0002937808006856?httpAccept=text\/xml","content-type":"text\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/api.elsevier.com\/content\/article\/PII:S0002937808006856?httpAccept=text\/plain","content-type":"text\/plain","content-version":"vor","intended-application":"text-mining"}],"deposited":{"date-parts":[[2025,9,11]],"date-time":"2025-09-11T10:30:53Z","timestamp":1757586653000},"score":1,"resource":{"primary":{"URL":"https:\/\/linkinghub.elsevier.com\/retrieve\/pii\/S0002937808006856"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2009,1]]},"references-count":21,"journal-issue":{"issue":"1","published-print":{"date-parts":[[2009,1]]}},"alternative-id":["S0002937808006856"],"URL":"https:\/\/doi.org\/10.1016\/j.ajog.2008.06.054","relation":{},"ISSN":["0002-9378"],"issn-type":[{"value":"0002-9378","type":"print"}],"subject":[],"published":{"date-parts":[[2009,1]]},"assertion":[{"value":"Elsevier","name":"publisher","label":"This article is maintained by"},{"value":"The transplacental transport of essential amino acids in uncomplicated human pregnancies","name":"articletitle","label":"Article Title"},{"value":"American Journal of Obstetrics and Gynecology","name":"journaltitle","label":"Journal Title"},{"value":"https:\/\/doi.org\/10.1016\/j.ajog.2008.06.054","name":"articlelink","label":"CrossRef DOI link to publisher maintained version"},{"value":"article","name":"content_type","label":"Content Type"},{"value":"Copyright \u00a9 2009 Mosby, Inc. All rights reserved.","name":"copyright","label":"Copyright"}]}}