{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,21]],"date-time":"2026-09-21T07:57:52Z","timestamp":1789977472491,"version":"4.0.1"},"reference-count":56,"publisher":"Wiley","issue":"3","license":[{"start":{"date-parts":[[2011,7,27]],"date-time":"2011-07-27T00:00:00Z","timestamp":1311724800000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"content-domain":{"domain":[],"crossmark-restriction":false},"short-container-title":["Annals of Neurology"],"published-print":{"date-parts":[[2011,9]]},"abstract":"<jats:title>Abstract<\/jats:title>\n                  <jats:sec>\n                    <jats:title>Objective:<\/jats:title>\n                    <jats:p>Determining which small deep infarcts (SDIs) are of lacunar, arterial, or cardioembolic etiology is challenging, but important in delivering optimal stroke prevention therapy. We sought to distinguish lacunar from nonlacunar causes of SDIs using a gene expression profile.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods:<\/jats:title>\n                    <jats:p>A total of 184 ischemic strokes were analyzed. Lacunar stroke was defined as a lacunar syndrome with infarction &lt;15mm in a region supplied by penetrating arteries. RNA from blood was processed on whole genome microarrays. Genes differentially expressed between lacunar (n = 30) and nonlacunar strokes (n = 86) were identified (false discovery rate \u2264 0.05, fold change &gt;|1.5|) and used to develop a prediction model. The model was evaluated by cross\u2010validation and in a second test cohort (n = 36). The etiology of SDIs of unclear cause (SDIs \u2265 15mm or SDIs with potential embolic source) (n = 32) was predicted using the derived model.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results:<\/jats:title>\n                    <jats:p>A 41\u2010gene profile discriminated lacunar from nonlacunar stroke with &gt;90% sensitivity and specificity. Of the 32 SDIs of unclear cause, 15 were predicted to be lacunar, and 17 were predicted to be nonlacunar. The identified profile represents differences in immune response between lacunar and nonlacunar stroke.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Interpretation:<\/jats:title>\n                    <jats:p>Profiles of differentially expressed genes can distinguish lacunar from nonlacunar stroke. SDIs of unclear cause were frequently predicted to be of nonlacunar etiology, suggesting that comprehensive workup of SDIs is important to identify potential cardioembolic and arterial causes. Further study is required to evaluate the gene profile in an independent cohort and determine the clinical and treatment implications of SDIs of predicted nonlacunar etiology. ANN NEUROL 2011<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1002\/ana.22497","type":"journal-article","created":{"date-parts":[[2011,6,3]],"date-time":"2011-06-03T04:13:38Z","timestamp":1307074418000},"page":"477-485","source":"Crossref","is-referenced-by-count":62,"title":["Profiles of lacunar and nonlacunar stroke"],"prefix":"10.1002","volume":"70","author":[{"given":"Glen C.","family":"Jickling","sequence":"first","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Boryana","family":"Stamova","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Bradley P.","family":"Ander","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Xinhua","family":"Zhan","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Yingfang","family":"Tian","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Dazhi","family":"Liu","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Huichun","family":"Xu","sequence":"additional","affiliation":[],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"S. 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