{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,7,30]],"date-time":"2026-07-30T19:50:05Z","timestamp":1785441005229,"version":"3.56.0"},"reference-count":113,"publisher":"MDPI AG","issue":"7","license":[{"start":{"date-parts":[[2023,4,4]],"date-time":"2023-04-04T00:00:00Z","timestamp":1680566400000},"content-version":"vor","delay-in-days":0,"URL":"https:\/\/creativecommons.org\/licenses\/by\/4.0\/"}],"funder":[{"name":"National Institute of Health","award":["1R21NS095130"],"award-info":[{"award-number":["1R21NS095130"]}]},{"name":"National Institute of Health","award":["1R21NS096525"],"award-info":[{"award-number":["1R21NS096525"]}]},{"name":"National Institute of Health","award":["R44NS084575"],"award-info":[{"award-number":["R44NS084575"]}]}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["IJMS"],"abstract":"<jats:p>Microvasculature develops during early brain development. Hypoxia\u2013ischemia (HI) and hypoxia (H) predispose to brain injury in neonates. Inter-alpha inhibitor proteins (IAIPs) attenuate injury to the neonatal brain after exposure to HI. However, the effects of IAIPs on the brain microvasculature after exposure to HI have not been examined in neonates. Postnatal day-7 rats were exposed to sham treatment or right carotid artery ligation and 8% oxygen for 90 min. HI comprises hypoxia (H) and ischemia to the right hemisphere (HI-right) and hypoxia to the whole body, including the left hemisphere (H-left). Human IAIPs (hIAIPs, 30 mg\/kg) or placebo were injected immediately, 24 and 48 h after HI\/H. The brains were analyzed 72 h after HI\/H to determine the effects of hIAIPs on the microvasculature by laminin immunohistochemistry and calculation of (1) the percentage area stained by laminin, (2) cumulative microvessel length, and (3) density of tunneling nanotubes (TNTs), which are sensitive indicators of the earliest phases of neo-vascularization\/collateralization. hIAIPs mainly affected the percent of the laminin-stained area after HI\/H, cumulative vessel length after H but not HI, and TNT density in females but not males. hIAIPs modify the effects of HI\/H on the microvasculature after brain injury in neonatal rats and exhibit sex-related differential effects. Our findings suggest that treatment with hIAIPs after exposure to H and HI in neonatal rats affects the laminin content of the vessel basal lamina and angiogenic responses in a sex-related fashion.<\/jats:p>","DOI":"10.3390\/ijms24076743","type":"journal-article","created":{"date-parts":[[2023,4,5]],"date-time":"2023-04-05T02:11:41Z","timestamp":1680660701000},"page":"6743","update-policy":"https:\/\/doi.org\/10.3390\/mdpi_crossmark_policy","source":"Crossref","is-referenced-by-count":8,"title":["Inter-Alpha Inhibitor Proteins Modify the Microvasculature after Exposure to Hypoxia\u2013Ischemia and Hypoxia in Neonatal Rats"],"prefix":"10.3390","volume":"24","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-8706-3386","authenticated-orcid":false,"given":"Francesco","family":"Girolamo","sequence":"first","affiliation":[{"name":"Department of Translational Biomedicines and Neuroscience (DiBraiN), University of Bari School of Medicine, 70124 Bari, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0003-2697-7963","authenticated-orcid":false,"given":"Yow-Pin","family":"Lim","sequence":"additional","affiliation":[{"name":"ProThera Biologics, Inc., Providence, RI 02905, USA"},{"name":"Department of Pathology and Laboratory Medicine, Alpert Medical School of Brown University, Providence, RI 02905, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Daniela","family":"Virgintino","sequence":"additional","affiliation":[{"name":"Department of Translational Biomedicines and Neuroscience (DiBraiN), University of Bari School of Medicine, 70124 Bari, Italy"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"ORCID":"https:\/\/orcid.org\/0000-0002-6532-7683","authenticated-orcid":false,"given":"Barbara S.","family":"Stonestreet","sequence":"additional","affiliation":[{"name":"Women & Infants Hospital of Rhode Island, Alpert Medical School of Brown University, Providence, RI 02905, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xiaodi F.","family":"Chen","sequence":"additional","affiliation":[{"name":"Women & Infants Hospital of Rhode Island, Alpert Medical School of Brown University, Providence, RI 02905, USA"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"1968","published-online":{"date-parts":[[2023,4,4]]},"reference":[{"key":"ref_1","doi-asserted-by":"crossref","first-page":"163","DOI":"10.1002\/bdrc.20095","article-title":"Destruction and reconstruction: Hypoxia and the developing brain","volume":"81","author":"Barrett","year":"2007","journal-title":"Birth Defects Res. 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