{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2025,11,8]],"date-time":"2025-11-08T22:56:25Z","timestamp":1762642585328,"version":"3.40.5"},"reference-count":45,"publisher":"Wiley","issue":"1","license":[{"start":{"date-parts":[[2021,10,14]],"date-time":"2021-10-14T00:00:00Z","timestamp":1634169600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/100006108","name":"National Center for Advancing Translational Sciences","doi-asserted-by":"publisher","award":["UL1TR001998"],"award-info":[{"award-number":["UL1TR001998"]}],"id":[{"id":"10.13039\/100006108","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Journal of Neurochemistry"],"published-print":{"date-parts":[[2022,1]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:label\/><jats:p>Regenerating Family Member 3 Alpha (REG3A) is a multifunctional protein with antimicrobial activity, and primarily secreted by the intestine and pancreas. Studies have shown an increased expression of REG3A in systemic inflammatory responses to acute injury and infection, but studies investigating REG3A during the pathogenesis of ischemic stroke are limited. The aims of this study were to examine the associations between arterial expression of REG3A and other arterial inflammatory proteins implicated in stroke pathogenesis, as well as associations between REG3A and markers of poor outcome for ischemic stroke. The University of Kentucky Blood and Clot Thrombectomy Registry and Collaboration (BACTRAC) protocol (clinicaltrials.gov NCT03153683) utilizes thrombectomy to isolate intracranial arterial blood (i.e. distal to thrombus) and systemic arterial blood (i.e. carotid). Samples were analyzed by Olink Proteomics for <jats:italic>N<\/jats:italic>\u00a0=\u00a042\u00a0subjects. Statistical analyses of plasma proteins included 2\u2010sample t\u2010tests, spearman and biserial correlations, and robust regression models to elucidate network signaling and association to clinical outcomes. Results indicated that levels of systemic REG3A were positively correlated with inflammatory proteins interleukin IL6 (<jats:italic>R<\/jats:italic>\u00a0=\u00a00.344, <jats:italic>p<\/jats:italic>\u00a0=\u00a00.030) and IL17C (<jats:italic>R<\/jats:italic>\u00a0=\u00a00.468, <jats:italic>p<\/jats:italic>\u00a0=\u00a00.002). 2\u2010sided t\u2010 tests examining differences of systemic REG3A within quartiles of NIHSS admission score depicted significant differences between quartiles. Those with NIHSS scores corresponding to moderate and moderate\u2010severe neurofunctional deficits had significantly higher levels of systemic REG3A compared to those with NIHSS scores corresponding to mild and mild\u2010moderate neurofunctional deficits (<jats:italic>p<\/jats:italic>\u00a0=\u00a00.016). STRING analyses of proteins in each robust regression model demonstrated substantial networking between REG3A and other systemic proteins highly relevant to ischemic stroke. The present study provides novel data on systemic REG3A in the context of ischemic stroke. These results demonstrate the influential role of REG3A regarding surrogate functional and radiographic outcomes of stroke severity. Additionally, they provide novel insight into the role of REG3A and related proteins during the complex neuroinflammatory process of ischemic stroke. These data provide a foundation for future studies to investigate REG3A and related networking proteins as potential biomarkers with prognostic potential, as well as potential therapeutic targets.<\/jats:p><\/jats:sec><jats:sec><jats:label\/><jats:p>\n<jats:boxed-text content-type=\"graphic\" position=\"anchor\"><jats:graphic xmlns:xlink=\"http:\/\/www.w3.org\/1999\/xlink\" mimetype=\"image\/png\" position=\"anchor\" specific-use=\"enlarged-web-image\" xlink:href=\"graphic\/jnc15520-fig-0004-m.png\"><jats:alt-text>image<\/jats:alt-text><\/jats:graphic><\/jats:boxed-text>\n<\/jats:p><\/jats:sec>","DOI":"10.1111\/jnc.15520","type":"journal-article","created":{"date-parts":[[2021,9,24]],"date-time":"2021-09-24T08:57:16Z","timestamp":1632473836000},"page":"100-112","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":17,"title":["Antimicrobial protein REG3A and signaling networks are predictive of stroke outcomes"],"prefix":"10.1111","volume":"160","author":[{"ORCID":"https:\/\/orcid.org\/0000-0001-6234-6638","authenticated-orcid":false,"given":"Madison","family":"Sands","sequence":"first","affiliation":[{"name":"Department of Neurology University of Kentucky  Lexington Kentucky USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jacqueline A.","family":"Frank","sequence":"additional","affiliation":[{"name":"Department of Neurology University of Kentucky  Lexington Kentucky USA"},{"name":"Center for Advanced Translational Stroke Science University of Kentucky  Lexington Kentucky USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Benton","family":"Maglinger","sequence":"additional","affiliation":[{"name":"Department of Neurology University of Kentucky  Lexington Kentucky USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Christopher\u00a0J.","family":"McLouth","sequence":"additional","affiliation":[{"name":"Department of Behavioral Science University of Kentucky  Lexington Kentucky USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Amanda L.","family":"Trout","sequence":"additional","affiliation":[{"name":"Department of Neurology University of Kentucky  Lexington Kentucky USA"},{"name":"Center for Advanced Translational Stroke Science University of Kentucky  Lexington Kentucky USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jadwiga","family":"Turchan\u2010Cholewo","sequence":"additional","affiliation":[{"name":"Department of Neurology University of Kentucky  Lexington Kentucky USA"},{"name":"Center for Advanced Translational Stroke Science University of Kentucky  Lexington Kentucky USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ann\u00a0M.","family":"Stowe","sequence":"additional","affiliation":[{"name":"Department of Neurology University of Kentucky  Lexington Kentucky USA"},{"name":"Center for Advanced Translational Stroke Science University of Kentucky  Lexington Kentucky USA"},{"name":"Department of Neuroscience University of Kentucky  Lexington Kentucky USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Justin F.","family":"Fraser","sequence":"additional","affiliation":[{"name":"Department of Neurology University of Kentucky  Lexington Kentucky USA"},{"name":"Center for Advanced Translational Stroke Science University of Kentucky  Lexington Kentucky USA"},{"name":"Department of Neuroscience University of Kentucky  Lexington Kentucky USA"},{"name":"Department of Neurosurgery University of Kentucky  Lexington Kentucky USA"},{"name":"Department of Radiology University of Kentucky  Lexington Kentucky USA"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Keith R.","family":"Pennypacker","sequence":"additional","affiliation":[{"name":"Department of Neurology University of Kentucky  Lexington Kentucky USA"},{"name":"Center for Advanced Translational Stroke Science University of Kentucky  Lexington 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