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Using a combination of high\u2010quality neuroimaging techniques, we investigated potential subtle differences in BBB permeability in mid\u2010age healthy people, comparing carriers of the apolipoprotein E epsilon\u20104 (APOE\u03b54) genotype, the biggest risk factor for late onset, non\u2010familial AD (LOAD) with APOE\u03b53 carriers, the population norm.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Methods<\/jats:title>\n                    <jats:p>Forty\u2010one cognitively healthy mid\u2010age participants (42\u201359) were genotyped and pseudo\u2010randomly selected to participate in the study by a third party. Blind to genotype, all participants had a structural brain scan acquisition including gadolinium\u2010based dynamic contrast\u2010enhanced magnetic resonance imaging acquired using a T1\u2010weighted 3D vibe sequence. A B1 map and T1 map were acquired as part of the multi\u2010parametric mapping acquisition.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Results<\/jats:title>\n                    <jats:p>Non\u2010significant, but subtle differences in blood\u2013brain barrier permeability were identified between healthy mid\u2010age APOE\u03b54 and APOE\u03b53 carriers, matched on age, education, and gender.<\/jats:p>\n                  <\/jats:sec>\n                  <jats:sec>\n                    <jats:title>Discussion<\/jats:title>\n                    <jats:p>This study demonstrated a tendency toward BBB permeability in APOE\u03b54 participants emerging from mid\u2010age, with quantitative differences observable on a number of the measures. While the differences did not reach a statistical significance, the results from this study hint at early changes in \u03b54 carrier BBB that may help identify at\u2010risk populations and facilitate the development of early interventions to change the trajectory of decline.<\/jats:p>\n                  <\/jats:sec>","DOI":"10.1002\/brb3.2806","type":"journal-article","created":{"date-parts":[[2022,11,21]],"date-time":"2022-11-21T05:49:53Z","timestamp":1669009793000},"update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":17,"title":["Evidence of emerging BBB changes in mid\u2010age apolipoprotein E epsilon\u20104 carriers"],"prefix":"10.1002","volume":"12","author":[{"ORCID":"https:\/\/orcid.org\/0000-0002-1182-2275","authenticated-orcid":false,"given":"Nourah M.","family":"Alruwais","sequence":"first","affiliation":[{"name":"Health science department, College of Applied Studies and Community Services King Saud University  Riyadh Saudi Arabia"},{"name":"School of Psychology University of Sussex  Brighton UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jenifer M.","family":"Rusted","sequence":"additional","affiliation":[{"name":"School of Psychology University of Sussex  Brighton UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Naji","family":"Tabet","sequence":"additional","affiliation":[{"name":"Brighton and Sussex Medical School (BSMS)  Brighton UK"}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nicholas G.","family":"Dowell","sequence":"additional","affiliation":[{"name":"Brighton and Sussex Medical School (BSMS)  Brighton UK"}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"311","published-online":{"date-parts":[[2022,11,21]]},"reference":[{"key":"e_1_2_10_2_1","doi-asserted-by":"publisher","DOI":"10.1097\/WAD.0b013e3182163b62"},{"key":"e_1_2_10_3_1","doi-asserted-by":"publisher","DOI":"10.1002\/mrm.25793"},{"key":"e_1_2_10_4_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.biopsych.2007.03.024"},{"key":"e_1_2_10_5_1","doi-asserted-by":"publisher","DOI":"10.1038\/nature11087"},{"key":"e_1_2_10_6_1","doi-asserted-by":"publisher","DOI":"10.1016\/s0140\u20106736(05)74869\u20108"},{"key":"e_1_2_10_7_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.brainresbull.2018.03.001"},{"key":"e_1_2_10_8_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.jalz.2018.01.016"},{"key":"e_1_2_10_9_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.nicl.2019.101818"},{"key":"e_1_2_10_10_1","doi-asserted-by":"publisher","DOI":"10.1056\/NEJMoa0809437"},{"key":"e_1_2_10_11_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.neuroscience.2017.05.048"},{"key":"e_1_2_10_12_1","doi-asserted-by":"publisher","DOI":"10.1046\/j.1469\u20101809.1999.6340301.x"},{"key":"e_1_2_10_13_1","doi-asserted-by":"publisher","DOI":"10.1126\/science.8346443"},{"key":"e_1_2_10_14_1","doi-asserted-by":"publisher","DOI":"10.1212\/01.wnl.0000304038.37421.cc"},{"key":"e_1_2_10_15_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.nicl.2013.12.001"},{"key":"e_1_2_10_16_1","doi-asserted-by":"publisher","DOI":"10.1038\/nature09513"},{"key":"e_1_2_10_17_1","doi-asserted-by":"publisher","DOI":"10.1161\/01.atv.8.1.1"},{"key":"e_1_2_10_18_1","doi-asserted-by":"publisher","DOI":"10.1038\/418932a"},{"key":"e_1_2_10_19_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.neuroimage.2010.06.00"},{"key":"e_1_2_10_20_1","doi-asserted-by":"publisher","DOI":"10.1002\/nbm.3502"},{"key":"e_1_2_10_21_1","doi-asserted-by":"publisher","DOI":"10.1002\/nbm.2912"},{"key":"e_1_2_10_22_1","doi-asserted-by":"publisher","DOI":"10.1038\/npp.2012.230"},{"key":"e_1_2_10_23_1","doi-asserted-by":"publisher","DOI":"10.1001\/jama.1997.03550160069041"},{"issue":"1","key":"e_1_2_10_24_1","first-page":"96","article-title":"ASHP members\u2019 concepts of institutional pharmacy in the year 2000","volume":"42","author":"Gourley D. 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