{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,12]],"date-time":"2026-09-12T16:11:26Z","timestamp":1789229486837,"version":"build-2803163510"},"reference-count":52,"publisher":"Wiley","issue":"14","license":[{"start":{"date-parts":[[2009,7,14]],"date-time":"2009-07-14T00:00:00Z","timestamp":1247529600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["The Journal of Physiology"],"published-print":{"date-parts":[[2009,7,15]]},"abstract":"<jats:p>Intrauterine growth restriction (IUGR) is a failure to achieve the growth potential of a fetus that is promised by the genetic constitution and environmental influences endogenous to the pregnancy. Optimal placental development and the ability of the placenta to compensate for stimulus\u2010induced injury are central in promotion of normal fetal growth. In this review, we will overview placental development with a focus on how villous structure relates to function. We will also describe the differentiation and turnover of villous trophoblast while highlighting selected features of microscopic placental injury. Histopathological studies of the placenta in IUGR indicate that abnormalities of the maternal spiral arterioles, dysregulated villous vasculogenesis, and abundant fibrin deposition are characteristic of the injuries associated with this condition. We identify selected insults, including oxidative stress and complement activation, and key pathways that regulate apoptosis in villous trophoblast, including increased p53 activity, altered translation of AKT and mTOR proteins, and the stress response of the endoplasmic reticulum. We surmise that trophoblast dysregulation at a subcellular level and loss of functional mass of villous trophoblast via cell death pathways are key contributors to the suboptimal placental performance that yields IUGR. We predict that a better understanding of placental dysfunction in IUGR will lead to targeted therapeutic options for this important clinical condition.<\/jats:p>","DOI":"10.1113\/jphysiol.2009.173252","type":"journal-article","created":{"date-parts":[[2009,5,18]],"date-time":"2009-05-18T20:55:28Z","timestamp":1242680128000},"page":"3453-3458","source":"Crossref","is-referenced-by-count":201,"title":["Intrauterine growth restriction, human placental development and trophoblast cell death"],"prefix":"10.1113","volume":"587","author":[{"given":"Christina M.","family":"Scifres","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"D. 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