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FGR placentae frequently exhibit poor vascular branching, but the mechanisms driving this are poorly understood. We hypothesize that vascular structural malformation at the organ level alters microvascular shear stress, impairing angiogenesis. A computational model of placental vasculature predicted elevated placental micro-vascular shear stress in FGR placentae (0.2\u2009Pa in severe FGR vs 0.05\u2009Pa in normal placentae). Endothelial cells cultured under predicted FGR shear stresses migrated significantly slower and with greater persistence than in shear stresses predicted in normal placentae. These cell behaviors suggest a dominance of vessel elongation over branching. Taken together, these results suggest (1) poor vascular development increases vessel shear stress, (2) increased shear stress induces cell behaviors that impair capillary branching angiogenesis, and (3) impaired branching angiogenesis continues to drive elevated shear stress, jeopardizing further vascular formation. Inadequate vascular branching early in gestation could kick off this cyclic loop and continue to negatively impact placental angiogenesis throughout gestation.<\/jats:p>","DOI":"10.1038\/s41598-019-46151-6","type":"journal-article","created":{"date-parts":[[2019,7,8]],"date-time":"2019-07-08T10:32:20Z","timestamp":1562581940000},"update-policy":"https:\/\/doi.org\/10.1007\/springer_crossmark_policy","source":"Crossref","is-referenced-by-count":60,"title":["Differences in placental capillary shear stress in fetal growth restriction may affect endothelial cell function and vascular network formation"],"prefix":"10.1038","volume":"9","author":[{"given":"Win M.","family":"Tun","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2918-3077","authenticated-orcid":false,"given":"Choon Hwai","family":"Yap","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Shier Nee","family":"Saw","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Joanna L.","family":"James","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Alys R.","family":"Clark","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"297","published-online":{"date-parts":[[2019,7,8]]},"reference":[{"key":"46151_CR1","doi-asserted-by":"publisher","first-page":"325","DOI":"10.1055\/s-2001-17856","volume":"18","author":"P Niknafs","year":"2001","unstructured":"Niknafs, P. & Sibbald, J. 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