{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,3,18]],"date-time":"2026-03-18T20:24:01Z","timestamp":1773865441062,"version":"3.50.1"},"reference-count":33,"publisher":"Oxford University Press (OUP)","issue":"5","license":[{"start":{"date-parts":[[2006,11,1]],"date-time":"2006-11-01T00:00:00Z","timestamp":1162339200000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/academic.oup.com\/pages\/standard-publication-reuse-rights"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":[],"published-print":{"date-parts":[[2006,11,1]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:p>Fetal intervention aims to improve lung growth and survival in congenital diaphragmatic hernia (CDH). Airway smooth muscle (ASM) is important in lung development: ASM progenitors produce a key growth factor for lung morphogenesis (fibroblast growth factor 10); ASM contractility is also coupled to growth. ASM hyperreactivity occurs in postnatal CDH and may exacerbate barotrauma via impaired lung compliance. We hypothesize that ASM hyperreactivity and its sequelae are based on an early developmental lesion of ASM activity in hypoplastic lung. Sprague-Dawley rats were fed 100 mg nitrofen on Day 9.5 of pregnancy to induce lung hypoplasia in offspring (controls had vehicle alone). Normal and hypoplastic lung primordia were cultured from Day 13.5 of gestation at 37\u00b0C in 5% CO2 and loaded at 54 or 78 h with Ca2+-sensitive indicators: Fluo-4 for confocal imaging and Indo-1 or Fura-2 for photometric measurements of [Ca2+]i. Hypoplastic lung features spontaneous propagating ASM Ca2+ transients with reduced frequency, increased amplitude, and significantly prolonged plateau duration, relative to control lung. Nonetheless, hypoplastic lung exhibits normal requirement for extracellular calcium entry and intracellular calcium release in initiation and regulation of ASM Ca2+ waves. Early ASM dysfunction in lung hypoplasia is apparent as specific anomalies of Ca2+ transients that indicate a problem with plasmalemmal ion channels\/action potential generation. Elucidation of such an ASM lesion may allow pharmacologic amelioration not only of ASM hyperreactivity and its sequelae, but also of hypoplastic lung growth itself.<\/jats:p>","DOI":"10.1165\/rcmb.2006-0079oc","type":"journal-article","created":{"date-parts":[[2006,5,25]],"date-time":"2006-05-25T21:05:58Z","timestamp":1148591158000},"page":"571-578","source":"Crossref","is-referenced-by-count":22,"title":["Airway Smooth Muscle Dysfunction Precedes Teratogenic Congenital Diaphragmatic Hernia and May Contribute to Hypoplastic Lung Morphogenesis"],"prefix":"10.1093","volume":"35","author":[{"given":"Neil C.","family":"Featherstone","sequence":"first","affiliation":[{"name":"Division of Child Health, Royal Liverpool Children's Hospital (Alder Hey); School of Biological Sciences; and The Physiological Laboratory, University of Liverpool, Liverpool, United Kingdom"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Marilyn 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