{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,22]],"date-time":"2026-10-22T18:15:59Z","timestamp":1792692959187,"version":"4.5.0"},"reference-count":31,"publisher":"Ovid Technologies (Wolters Kluwer Health)","issue":"9","content-domain":{"domain":["www.ahajournals.org"],"crossmark-restriction":true},"short-container-title":["Circulation"],"published-print":{"date-parts":[[1995,5]]},"abstract":"<jats:p>\n            <jats:italic>Background<\/jats:italic>\n            The pathogenesis of complete transposition of the great arteries (TGA) is still controversial because useful animal models have not been established. We previously reported that all-trans retinoic acid induced complete TGA at a high proportion in mice. The aim of the present study was to clarify the morphogenesis of the cardiac outflow tract in the retinoic acid\u2013treated embryos destined to develop TGA.\n          <\/jats:p>\n          <jats:p>\n            <jats:italic>Methods and Results<\/jats:italic>\n            We first examined the morphology of TGA in mouse fetuses treated with retinoic acid to establish an animal model of TGA (experiment 1) and then examined the retinoic acid\u2013treated embryonic hearts by means of ink injection and histology (experiment 2). All mouse fetuses and embryos showed visceroatrial situs solitus and d-ventricular loop. In experiment 1, among 45 embryos treated with retinoic acid 70 mg\/kg at day 8.5 of gestation, 35 (78%) had TGA and 3 (6.7%) had a double-outlet right ventricle with a subpulmonary ventricular septal defect. In experiment 2, all hearts already exhibited d-loop at gestation day 8.5. At gestation day 9.5, conus swellings, composed of acellular cardiac jelly, were hypoplastic, and the conotruncal cavity was nonspiral or tubular. At gestation day 11.0, aberrant conus swellings located anteroposteriorly to give a straight orientation to the conotruncal cavity. At gestation day 12.0, side-by-side great arteries were transposed in that the aorta arose from the right ventricle and the pulmonary artery arose above the interventricular foramen.\n          <\/jats:p>\n          <jats:p>\n            <jats:italic>Conclusions<\/jats:italic>\n            These results suggest that a reproducible animal model of TGA can be produced in mice by treatment with retinoic acid; that there was no loop anomaly, such as an A-loop or L-loop, in our model; and that hypoplasia of the conus swellings appears to be the primary event leading to TGA.\n          <\/jats:p>","DOI":"10.1161\/01.cir.91.9.2478","type":"journal-article","created":{"date-parts":[[2012,6,12]],"date-time":"2012-06-12T00:34:42Z","timestamp":1339461282000},"page":"2478-2486","update-policy":"https:\/\/doi.org\/10.1161\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":70,"title":["Morphological Observations on the Pathogenetic Process of Transposition of the Great Arteries Induced by Retinoic Acid in Mice"],"prefix":"10.1161","volume":"91","author":[{"given":"Hiroshi","family":"Yasui","sequence":"first","affiliation":[{"name":"From the Department of Pediatric Cardiology (H.Y., M.N., S.M-T., K.M.) and Research Division (M.M.), The Heart Institute of Japan, Tokyo, and the Department of Anatomy and Developmental Biology (H.Y.), Tokyo Women\u2019s Medical College."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Makoto","family":"Nakazawa","sequence":"additional","affiliation":[{"name":"From the Department of Pediatric Cardiology (H.Y., M.N., S.M-T., K.M.) and Research Division (M.M.), The Heart Institute of Japan, Tokyo, and the Department of Anatomy and Developmental Biology (H.Y.), Tokyo Women\u2019s Medical College."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Masae","family":"Morishima","sequence":"additional","affiliation":[{"name":"From the Department of Pediatric Cardiology (H.Y., M.N., S.M-T., K.M.) and Research Division (M.M.), The Heart Institute of Japan, Tokyo, and the Department of Anatomy and Developmental Biology (H.Y.), Tokyo Women\u2019s Medical College."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Sachiko","family":"Miyagawa-Tomita","sequence":"additional","affiliation":[{"name":"From the Department of Pediatric Cardiology (H.Y., M.N., S.M-T., K.M.) and Research Division (M.M.), The Heart Institute of Japan, Tokyo, and the Department of Anatomy and Developmental Biology (H.Y.), Tokyo Women\u2019s Medical College."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Kazuo","family":"Momma","sequence":"additional","affiliation":[{"name":"From the Department of Pediatric Cardiology (H.Y., M.N., S.M-T., K.M.) and Research Division (M.M.), The Heart Institute of Japan, Tokyo, and the Department of Anatomy and Developmental Biology (H.Y.), Tokyo Women\u2019s Medical College."}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"276","reference":[{"key":"e_1_3_2_1_2","first-page":"433","volume":"2","year":"1909","unstructured":"Keith A. 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Mount Kisco NY: Futura Publishing; 1980:271-316."},{"key":"e_1_3_2_10_2","unstructured":"Asami I Koizumi K. The development of the aortic channel when it arises from the right ventricle: an analytical experimental approach to the morphogenesis of transposition of the great arteries. In: Nora JJ Takao A eds. Congenital Heart Disease: Causes and Processes. Mount Kisco NY: Futura Publishing; 1984:531-542."},{"key":"e_1_3_2_11_2","doi-asserted-by":"crossref","unstructured":"Pexieder T Rousseil MP Prados-Frutos JC. Prenatal pathogenesis of the transposition of great arteries. In: Vogel M B\u00fchlmeyer K eds. Transposition of the Great Arteries 25 Years After Rashkind Balloon Septostomy. 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