{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,10]],"date-time":"2026-10-10T02:52:05Z","timestamp":1791600725549,"version":"4.3.4"},"reference-count":43,"publisher":"Wiley","issue":"6","license":[{"start":{"date-parts":[[2019,3,5]],"date-time":"2019-03-05T00:00:00Z","timestamp":1551744000000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/100000002","name":"National Institutes of Health","doi-asserted-by":"publisher","award":["R21NS091654"],"award-info":[{"award-number":["R21NS091654"]}],"id":[{"id":"10.13039\/100000002","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["J of Inher Metab Disea"],"published-print":{"date-parts":[[2019,11]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:p>The enzyme carbamoyl phosphate synthetase 1 (CPS1; EC 6.3.4.16) forms carbamoyl phosphate from bicarbonate, ammonia, and adenosine triphosphate (ATP) and is activated allosterically by N\u2010acetylglutamate. The neonatal presentation of bi\u2010allelic mutations of <jats:italic>CPS1<\/jats:italic> results in hyperammonemia with reduced citrulline and is reported as the most challenging nitrogen metabolism disorder to treat. As therapeutic interventions are limited, patients often develop neurological injury or die from hyperammonemia. Survivors remain vulnerable to nitrogen overload, being at risk for repetitive neurological injury. With transgenic technology, our lab developed a constitutive <jats:italic>Cps1<\/jats:italic> mutant mouse and reports its characterization herein. Within 24\u2009hours of birth, all <jats:italic>Cps1<\/jats:italic><jats:sup>\n<jats:italic>\u2212\/\u2212<\/jats:italic><\/jats:sup> mice developed hyperammonemia and expired. No CPS1 protein by Western blot or immunostaining was detected in livers nor was Cps1 mRNA present. CPS1 enzymatic activity was markedly decreased in knockout livers and reduced in <jats:italic>Cps1<\/jats:italic><jats:sup>+\/\u2212<\/jats:sup>mice. Plasma analysis found markedly reduced citrulline and arginine and markedly increased glutamine and alanine, both intermolecular carriers of nitrogen, along with elevated ammonia, taurine, and lysine. Derangements in multiple other amino acids were also detected. While hepatic amino acids also demonstrated markedly reduced citrulline, arginine, while decreased, was not statistically significant; alanine and lysine were markedly increased while glutamine was trending towards significance. In conclusion we have determined that this constitutive neonatal mouse model of CPS1 deficiency replicates the neonatal human phenotype and demonstrates the key biochemical features of the disorder. These mice will be integral for addressing the challenges of developing new therapeutic approaches for this, at present, poorly treated disorder.<\/jats:p>","DOI":"10.1002\/jimd.12048","type":"journal-article","created":{"date-parts":[[2019,3,5]],"date-time":"2019-03-05T23:53:24Z","timestamp":1551830004000},"page":"1044-1053","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":15,"title":["A constitutive knockout of murine carbamoyl phosphate synthetase 1 results in death with marked hyperglutaminemia and hyperammonemia"],"prefix":"10.1002","volume":"42","author":[{"given":"Suhail","family":"Khoja","sequence":"first","affiliation":[{"name":"Department of Surgery David Geffen School of Medicine at UCLA  Los Angeles California"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Matthew","family":"Nitzahn","sequence":"additional","affiliation":[{"name":"Department of Surgery David Geffen School of Medicine at UCLA  Los Angeles California"},{"name":"Molecular Biology Institute David Geffen School of Medicine at UCLA  Los Angeles California"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Brian","family":"Truong","sequence":"additional","affiliation":[{"name":"Department of Surgery David Geffen School of Medicine at UCLA  Los Angeles California"},{"name":"Department of Molecular and Medical Pharmacology David Geffen School of Medicine at UCLA  Los Angeles California"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jenna","family":"Lambert","sequence":"additional","affiliation":[{"name":"Department of Surgery David Geffen School of Medicine at UCLA  Los Angeles California"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Brandon","family":"Willis","sequence":"additional","affiliation":[{"name":"Mouse Biology Program University of California  Davis California"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Gabriella","family":"Allegri","sequence":"additional","affiliation":[{"name":"Division of Metabolism and Children's Research Center University Children's Hospital Zurich  Zurich Switzerland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"V\u00e9ronique","family":"R\u00fcfenacht","sequence":"additional","affiliation":[{"name":"Division of Metabolism and Children's Research Center University Children's Hospital Zurich  Zurich Switzerland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Johannes","family":"H\u00e4berle","sequence":"additional","affiliation":[{"name":"Division of Metabolism and Children's Research Center University Children's Hospital Zurich  Zurich Switzerland"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Gerald S.","family":"Lipshutz","sequence":"additional","affiliation":[{"name":"Department of Surgery David Geffen School of Medicine at UCLA  Los Angeles California"},{"name":"Department of Molecular and Medical Pharmacology David Geffen School of Medicine at UCLA  Los Angeles California"},{"name":"Molecular Biology Institute David Geffen School of Medicine at UCLA  Los Angeles California"},{"name":"Department of Medicine David Geffen School of Medicine at UCLA  Los Angeles California"},{"name":"Department of Urology David Geffen School of Medicine at UCLA  Los Angeles California"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2019,3,5]]},"reference":[{"key":"e_1_2_8_2_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0021-9258(17)33785-7"},{"key":"e_1_2_8_3_1","doi-asserted-by":"publisher","DOI":"10.1080\/14728222.2017.1294685"},{"key":"e_1_2_8_4_1","doi-asserted-by":"publisher","DOI":"10.1159\/000459184"},{"key":"e_1_2_8_5_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1651-2227.2008.00923.x"},{"key":"e_1_2_8_6_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ymgme.2013.07.008"},{"key":"e_1_2_8_7_1","volume-title":"Urea Cycle Disorders Overview","author":"Ah Mew N","year":"2003"},{"key":"e_1_2_8_8_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0022-3476(05)83044-6"},{"key":"e_1_2_8_9_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.gene.2011.11.052"},{"key":"e_1_2_8_10_1","doi-asserted-by":"publisher","DOI":"10.1056\/NEJM198206103062303"},{"key":"e_1_2_8_11_1","doi-asserted-by":"publisher","DOI":"10.1067\/mpd.2001.111836"},{"key":"e_1_2_8_12_1","doi-asserted-by":"publisher","DOI":"10.1093\/nar\/gkm163"},{"key":"e_1_2_8_13_1","doi-asserted-by":"publisher","DOI":"10.1038\/nature10163"},{"key":"e_1_2_8_14_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ymgme.2018.04.001"},{"key":"e_1_2_8_15_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0021-9673(01)90918-5"},{"key":"e_1_2_8_16_1","doi-asserted-by":"publisher","DOI":"10.1042\/BJ20120163"},{"key":"e_1_2_8_17_1","doi-asserted-by":"publisher","DOI":"10.1002\/humu.22349"},{"key":"e_1_2_8_18_1","doi-asserted-by":"publisher","DOI":"10.1111\/j.1399-0004.2009.01216.x"},{"key":"e_1_2_8_19_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.braindev.2008.12.013"},{"key":"e_1_2_8_20_1","doi-asserted-by":"publisher","DOI":"10.1007\/s10038-007-0122-9"},{"key":"e_1_2_8_21_1","doi-asserted-by":"publisher","DOI":"10.1002\/hep.510290112"},{"key":"e_1_2_8_22_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ymgme.2007.08.123"},{"key":"e_1_2_8_23_1","doi-asserted-by":"publisher","DOI":"10.1042\/bst0210198"},{"key":"e_1_2_8_24_1","doi-asserted-by":"publisher","DOI":"10.1172\/JCI117651"},{"key":"e_1_2_8_25_1","doi-asserted-by":"publisher","DOI":"10.1093\/jn\/133.6.2068S"},{"key":"e_1_2_8_26_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0021-9258(18)31686-7"},{"key":"e_1_2_8_27_1","doi-asserted-by":"publisher","DOI":"10.1139\/y87-373"},{"key":"e_1_2_8_28_1","doi-asserted-by":"publisher","DOI":"10.1517\/21678707.2015.1039511"},{"key":"e_1_2_8_29_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.celrep.2017.11.081"},{"key":"e_1_2_8_30_1","doi-asserted-by":"publisher","DOI":"10.1002\/(SICI)1098-1004(1998)12:3<206::AID-HUMU8>3.0.CO;2-E"},{"key":"e_1_2_8_31_1","doi-asserted-by":"publisher","DOI":"10.1006\/jsre.1999.5588"},{"key":"e_1_2_8_32_1","doi-asserted-by":"publisher","DOI":"10.1016\/S0039-6060(99)70151-0"},{"key":"e_1_2_8_33_1","doi-asserted-by":"publisher","DOI":"10.1006\/mthe.2000.0136"},{"key":"e_1_2_8_34_1","doi-asserted-by":"publisher","DOI":"10.1006\/mthe.2001.0267"},{"key":"e_1_2_8_35_1","doi-asserted-by":"publisher","DOI":"10.1073\/pnas.96.23.13324"},{"key":"e_1_2_8_36_1","doi-asserted-by":"publisher","DOI":"10.1016\/S1525-0016(03)00132-1"},{"key":"e_1_2_8_37_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ymthe.2003.11.013"},{"key":"e_1_2_8_38_1","doi-asserted-by":"publisher","DOI":"10.1089\/hum.2011.148"},{"key":"e_1_2_8_39_1","doi-asserted-by":"publisher","DOI":"10.1038\/ncomms10558"},{"key":"e_1_2_8_40_1","doi-asserted-by":"publisher","DOI":"10.1038\/pr.2017.143"},{"key":"e_1_2_8_41_1","doi-asserted-by":"publisher","DOI":"10.1161\/01.HYP.0000112424.06921.52"},{"key":"e_1_2_8_42_1","doi-asserted-by":"publisher","DOI":"10.1007\/s12031-018-1035-0"},{"key":"e_1_2_8_43_1","doi-asserted-by":"publisher","DOI":"10.1038\/nature22359"},{"key":"e_1_2_8_44_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.ajpath.2010.10.023"}],"container-title":["Journal of Inherited Metabolic Disease"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.wiley.com\/onlinelibrary\/tdm\/v1\/articles\/10.1002%2Fjimd.12048","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/jimd.12048","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/full-xml\/10.1002\/jimd.12048","content-type":"application\/xml","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/jimd.12048","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,8,24]],"date-time":"2023-08-24T04:53:17Z","timestamp":1692852797000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1002\/jimd.12048"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2019,3,5]]},"references-count":43,"journal-issue":{"issue":"6","published-print":{"date-parts":[[2019,11]]}},"alternative-id":["10.1002\/jimd.12048"],"URL":"https:\/\/doi.org\/10.1002\/jimd.12048","archive":["Portico"],"relation":{},"ISSN":["0141-8955","1573-2665"],"issn-type":[{"value":"0141-8955","type":"print"},{"value":"1573-2665","type":"electronic"}],"subject":[],"published":{"date-parts":[[2019,3,5]]},"assertion":[{"value":"2018-10-22","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2018-12-31","order":1,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2019-03-05","order":2,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}]}}