{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,10,6]],"date-time":"2026-10-06T12:59:22Z","timestamp":1791291562425,"version":"4.1.0"},"reference-count":60,"publisher":"Ovid Technologies (Wolters Kluwer Health)","issue":"11","content-domain":{"domain":["www.ahajournals.org"],"crossmark-restriction":true},"short-container-title":["ATVB"],"published-print":{"date-parts":[[2012,11]]},"abstract":"<jats:sec><jats:title>Objective\u2014<\/jats:title><jats:p>Patients with abdominal aortic aneurysms have lower concentrations of high-density lipoproteins (HDLs), leading us to investigate whether increasing plasma HDLs could influence aneurysm formation.<\/jats:p><\/jats:sec><jats:sec><jats:title>Methods and Results\u2014<\/jats:title><jats:p>Using the angiotensin II\u2212induced hypercholesterolemic and the CaCl<jats:sub>2<\/jats:sub>-induced normocholesterolemic mouse model of AAA, we investigated the hypothesis that elevation of HDLs inhibits AAA. HDLs elevated before or at the time of AAA induction reduced AAA formation in both models but had no effect on early ruptures. Analysis of protein lysates from specific aortic segments demonstrated site-specific effects of HDLs on early signal transduction and cellular attrition. We found that HDLs reduced extracellular signal related kinases 1\/2 activation in the suprarenal segment, while having no effect on p38 mitogen-associated protein kinase activation in any aortic segment and inhibiting c-Jun N-terminal kinase activation in all aortic segments. In addition, HDL elevation inhibited angiotensin II\u2212induced apoptosis while inducing autophagy in the suprarenal segment of the aorta. Using Illumina gene array profiling we investigated the ability of HDL to modulate basal suprarenal aortic gene expression.<\/jats:p><\/jats:sec><jats:sec><jats:title>Conclusion\u2014<\/jats:title><jats:p>Increasing plasma HDLs inhibit experimental AAA formation, independent of hypercholesterolemia via reduced extracellular signal related kinases 1\/2 activation and alteration of the balance of cellular attrition. HDLs modulate genes involved in matrix remodelling, cell migration, and proliferation.<\/jats:p><\/jats:sec>","DOI":"10.1161\/atvbaha.112.00009","type":"journal-article","created":{"date-parts":[[2012,9,28]],"date-time":"2012-09-28T18:55:53Z","timestamp":1348858553000},"page":"2678-2686","update-policy":"https:\/\/doi.org\/10.1161\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":35,"title":["Elevation of Plasma High-Density Lipoproteins Inhibits Development of Experimental Abdominal Aortic Aneurysms"],"prefix":"10.1161","volume":"32","author":[{"given":"Evelyn","family":"Torsney","sequence":"first","affiliation":[{"name":"From the Division of Clinical Sciences, St George\u2019s University of London, London, United Kingdom (E.T., G.P., N.C., A.S., D.G., S.P., K.L., G.W.C.); and Department of Surgery, University of Nebraska Medical Center, Omaha, NE (T.M., W.X., B.T.M.)."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Grisha","family":"Pirianov","sequence":"additional","affiliation":[{"name":"From the Division of Clinical Sciences, St George\u2019s University of London, London, United Kingdom (E.T., G.P., N.C., A.S., D.G., S.P., K.L., G.W.C.); and Department of Surgery, University of Nebraska Medical Center, Omaha, NE (T.M., W.X., B.T.M.)."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Nicoletta","family":"Charolidi","sequence":"additional","affiliation":[{"name":"From the Division of Clinical Sciences, St George\u2019s University of London, London, United Kingdom (E.T., G.P., N.C., A.S., D.G., S.P., K.L., G.W.C.); and Department of Surgery, University of Nebraska Medical Center, Omaha, NE (T.M., W.X., B.T.M.)."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Azza","family":"Shoreim","sequence":"additional","affiliation":[{"name":"From the Division of Clinical Sciences, St George\u2019s University of London, London, United Kingdom (E.T., G.P., N.C., A.S., D.G., S.P., K.L., G.W.C.); and Department of Surgery, University of Nebraska Medical Center, Omaha, NE (T.M., W.X., B.T.M.)."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"David","family":"Gaze","sequence":"additional","affiliation":[{"name":"From the Division of Clinical Sciences, St George\u2019s University of London, London, United Kingdom (E.T., G.P., N.C., A.S., D.G., S.P., K.L., G.W.C.); and Department of Surgery, University of Nebraska Medical Center, Omaha, NE (T.M., W.X., B.T.M.)."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Slaveia","family":"Petrova","sequence":"additional","affiliation":[{"name":"From the Division of Clinical Sciences, St George\u2019s University of London, London, United Kingdom (E.T., G.P., N.C., A.S., D.G., S.P., K.L., G.W.C.); and Department of Surgery, University of Nebraska Medical Center, Omaha, NE (T.M., W.X., B.T.M.)."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Ken","family":"Laing","sequence":"additional","affiliation":[{"name":"From the Division of Clinical Sciences, St George\u2019s University of London, London, United Kingdom (E.T., G.P., N.C., A.S., D.G., S.P., K.L., G.W.C.); and Department of Surgery, University of Nebraska Medical Center, Omaha, NE (T.M., W.X., B.T.M.)."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Trevor","family":"Meisinger","sequence":"additional","affiliation":[{"name":"From the Division of Clinical Sciences, St George\u2019s University of London, London, United Kingdom (E.T., G.P., N.C., A.S., D.G., S.P., K.L., G.W.C.); and Department of Surgery, University of Nebraska Medical Center, Omaha, NE (T.M., W.X., B.T.M.)."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Wanfen","family":"Xiong","sequence":"additional","affiliation":[{"name":"From the Division of Clinical Sciences, St George\u2019s University of London, London, United Kingdom (E.T., G.P., N.C., A.S., D.G., S.P., K.L., G.W.C.); and Department of Surgery, University of Nebraska Medical Center, Omaha, NE (T.M., W.X., B.T.M.)."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"B. 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