{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,2,21]],"date-time":"2025-02-21T22:54:21Z","timestamp":1740178461636,"version":"3.37.3"},"reference-count":78,"publisher":"Wiley","issue":"15","license":[{"start":{"date-parts":[[2018,8,6]],"date-time":"2018-08-06T00:00:00Z","timestamp":1533513600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/100012070","name":"Anatomical Society","doi-asserted-by":"publisher","id":[{"id":"10.13039\/100012070","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Birth Defects Research"],"published-print":{"date-parts":[[2018,9]]},"abstract":"<jats:sec><jats:title>Background<\/jats:title><jats:p>Naturally hypoxic conditions in amniote embryos play important roles in normal development. We previously showed that a hypoxic condition is required to produce a sufficient amount of neural crest cells (NCCs) during embryogenesis and that promoting a hypoxic response by prolyl\u2010hydroxylase (PHD) inhibitors increases NCCs. Given that PHD inhibitors are considered as a potential treatment for anemia and ischemic diseases, we investigated the phenotypic effect of PHD inhibitors on embryonic development.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods<\/jats:title><jats:p>Chick embryos were administered with PHD inhibitors prior to the induction of NCCs on day 1.5. Three main events relating to hypoxia, NCCs induction, vasculogenesis and chondrogenesis, were examined.<\/jats:p><\/jats:sec><jats:sec><jats:title>Results<\/jats:title><jats:p>PHD inhibitors caused an increase of <jats:italic>Sox10<\/jats:italic>\u2010positive NCCs in vivo. Vasculogenesis was promoted temporarily, although rapid vasculogenesis diminished the effect by day 5 in cephalic and pharyngeal regions. Studies on chondrogenesis at day 7 showed advanced development of the otic capsule, a cartilaginous structure encapsulating the inner ear. Analysis by X\u2010ray micro\u2010computed\u2010tomography (\u03bcCT) revealed smaller otic capsule, suggesting premature differentiation. This in turn, deformed the developing semicircular canals within it. Other skeletal structures such as the palate and jaw were unaffected. The localized effect on the otic capsule was considered a result of the multiple effects from the hypoxic responses, increased NCCs and promoted chondrogenesis.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion<\/jats:title><jats:p>Given the wide range of clinical applications being considered for PHD inhibitors, this study provides crucial information to caution and guide use of PHD inhibitors when treating women of childbearing age.<\/jats:p><\/jats:sec>","DOI":"10.1002\/bdr2.1375","type":"journal-article","created":{"date-parts":[[2018,8,7]],"date-time":"2018-08-07T08:30:52Z","timestamp":1533630652000},"page":"1194-1204","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":0,"title":["Developmental abnormalities of the otic capsule and inner ear following application of prolyl\u2010hydroxylase inhibitors in chick embryos"],"prefix":"10.1002","volume":"110","author":[{"given":"Akshay","family":"Kumar","sequence":"first","affiliation":[{"name":"Faculty of Health Sciences University of Bristol  Bristol United Kingdom"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Thomas G.","family":"Davies","sequence":"additional","affiliation":[{"name":"School of Earth Sciences University of Bristol  Bristol United Kingdom"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-0587-9141","authenticated-orcid":false,"given":"Nobue","family":"Itasaki","sequence":"additional","affiliation":[{"name":"Faculty of Health Sciences University of Bristol  Bristol United Kingdom"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2018,8,6]]},"reference":[{"key":"e_1_2_6_2_1","doi-asserted-by":"publisher","DOI":"10.1242\/dev.002709"},{"key":"e_1_2_6_3_1","doi-asserted-by":"publisher","DOI":"10.1073\/pnas.162356199"},{"key":"e_1_2_6_4_1","doi-asserted-by":"publisher","DOI":"10.1101\/gad.1017802"},{"key":"e_1_2_6_5_1","doi-asserted-by":"publisher","DOI":"10.1242\/dev.008441"},{"key":"e_1_2_6_6_1","first-page":"157","article-title":"Development of the otic capsule of the human ear; illustrated in atlas series","volume":"32","author":"Anson B. 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