{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,9,25]],"date-time":"2026-09-25T13:50:31Z","timestamp":1790344231383,"version":"4.1.0"},"reference-count":44,"publisher":"Ovid Technologies (Wolters Kluwer Health)","issue":"9","content-domain":{"domain":["www.ahajournals.org"],"crossmark-restriction":true},"short-container-title":["ATVB"],"published-print":{"date-parts":[[2009,9]]},"abstract":"<jats:p>\n            <jats:bold>\n              <jats:italic>Objective\u2014<\/jats:italic>\n            <\/jats:bold>\n            Impaired hepatic phosphatidylcholine (PC) synthesis lowers plasma lipids. We, therefore, tested the hypothesis that lack of phosphatidylethanolamine N-methyltransferase (PEMT), a hepatic enzyme catalyzing PC biosynthesis, attenuates the development of atherosclerosis.\n          <\/jats:p>\n          <jats:p>\n            <jats:bold>\n              <jats:italic>Methods and Results\u2014<\/jats:italic>\n            <\/jats:bold>\n            Mice deficient in both PEMT and low-density lipoprotein receptors (\n            <jats:italic>\n              Pemt\n              <jats:sup>\u2212\/\u2212<\/jats:sup>\n              \/Ldlr\n              <jats:sup>\u2212\/\u2212<\/jats:sup>\n            <\/jats:italic>\n            mice) were fed a high-fat\/high-cholesterol diet for 16 weeks. Atherosclerotic lesion area was \u224880% lower (\n            <jats:italic>P<\/jats:italic>\n            &lt;0.01) in\n            <jats:italic>\n              Pemt\n              <jats:sup>\u2212\/\u2212<\/jats:sup>\n              \/Ldlr\n              <jats:sup>\u2212\/\u2212<\/jats:sup>\n            <\/jats:italic>\n            mice than in\n            <jats:italic>\n              Pemt\n              <jats:sup>+\/+<\/jats:sup>\n              \/Ldlr\n              <jats:sup>\u2212\/\u2212<\/jats:sup>\n            <\/jats:italic>\n            mice, consistent with the atheroprotective plasma lipoprotein profile (ie, significant reduction in very low\u2013density lipoprotein [VLDL]\/intermediate-density lipoprotein\/low-density lipoprotein\u2013associated phospholipids [\u224845%], triacylglycerols [\u224865%], cholesterol [\u224858%], and cholesteryl esters [\u224868%]). Plasma apoB was decreased by 40% to 60%, whereas high-density lipoprotein levels were not altered. In addition, PEMT deficiency reduced plasma homocysteine by 34% to 52% in\n            <jats:italic>\n              Pemt\n              <jats:sup>\u2212\/\u2212<\/jats:sup>\n              \/Ldlr\n              <jats:sup>\u2212\/\u2212<\/jats:sup>\n            <\/jats:italic>\n            mice. The molar ratio of PC\/phosphatidylethanolamine in nascent VLDLs produced by\n            <jats:italic>\n              Pemt\n              <jats:sup>\u2212\/\u2212<\/jats:sup>\n              \/Ldlr\n              <jats:sup>\u2212\/\u2212<\/jats:sup>\n            <\/jats:italic>\n            mice was lower than in VLDLs in\n            <jats:italic>\n              Pemt\n              <jats:sup>+\/+<\/jats:sup>\n              \/Ldlr\n              <jats:sup>\u2212\/\u2212<\/jats:sup>\n            <\/jats:italic>\n            mice. Furthermore, deletion of PEMT modestly reduced hepatic VLDL secretion in\n            <jats:italic>\n              Ldlr\n              <jats:sup>\u2212\/\u2212<\/jats:sup>\n            <\/jats:italic>\n            mice and altered the rate of VLDL clearance from plasma.\n          <\/jats:p>\n          <jats:p>\n            <jats:bold>\n              <jats:italic>Conclusion\u2014<\/jats:italic>\n            <\/jats:bold>\n            This is the first report showing that inhibition of hepatic phospholipid biosynthesis attenuates atherosclerosis.\n          <\/jats:p>","DOI":"10.1161\/atvbaha.109.188672","type":"journal-article","created":{"date-parts":[[2009,6,12]],"date-time":"2009-06-12T03:56:08Z","timestamp":1244778968000},"page":"1349-1355","update-policy":"https:\/\/doi.org\/10.1161\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":77,"title":["Lack of Phosphatidylethanolamine\n            <i>N<\/i>\n            -Methyltransferase Alters Plasma VLDL Phospholipids and Attenuates Atherosclerosis in Mice"],"prefix":"10.1161","volume":"29","author":[{"given":"Yang","family":"Zhao","sequence":"first","affiliation":[{"name":"From the Group on Molecular and Cell Biology of Lipids (Y.Z., B.S., R.L.J., G.A.F., E.W., J.E.V., D.E.V.) and the Departments of Biochemistry (Y.Z., B.S., R.L.J., D.E.V.) and Medicine (G.A.F., E.W., J.E.V.), University of Alberta, Edmonton, Canada; the Department of Biochemical Molecular Biology (B.K.), Merck Frosst Centre for Therapeutic Research, Montreal, QC, Canada; and the Department of Biochemistry (J.T.B.), Memorial University of Newfoundland, St. John\u2019s, Newfoundland."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Brian","family":"Su","sequence":"additional","affiliation":[{"name":"From the Group on Molecular and Cell Biology of Lipids (Y.Z., B.S., R.L.J., G.A.F., E.W., J.E.V., D.E.V.) and the Departments of Biochemistry (Y.Z., B.S., R.L.J., D.E.V.) and Medicine (G.A.F., E.W., J.E.V.), University of Alberta, Edmonton, Canada; the Department of Biochemical Molecular Biology (B.K.), Merck Frosst Centre for Therapeutic Research, Montreal, QC, Canada; and the Department of Biochemistry (J.T.B.), Memorial University of Newfoundland, St. John\u2019s, Newfoundland."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Rene\u0301 L.","family":"Jacobs","sequence":"additional","affiliation":[{"name":"From the Group on Molecular and Cell Biology of Lipids (Y.Z., B.S., R.L.J., G.A.F., E.W., J.E.V., D.E.V.) and the Departments of Biochemistry (Y.Z., B.S., R.L.J., D.E.V.) and Medicine (G.A.F., E.W., J.E.V.), University of Alberta, Edmonton, Canada; the Department of Biochemical Molecular Biology (B.K.), Merck Frosst Centre for Therapeutic Research, Montreal, QC, Canada; and the Department of Biochemistry (J.T.B.), Memorial University of Newfoundland, St. John\u2019s, Newfoundland."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Brian","family":"Kennedy","sequence":"additional","affiliation":[{"name":"From the Group on Molecular and Cell Biology of Lipids (Y.Z., B.S., R.L.J., G.A.F., E.W., J.E.V., D.E.V.) and the Departments of Biochemistry (Y.Z., B.S., R.L.J., D.E.V.) and Medicine (G.A.F., E.W., J.E.V.), University of Alberta, Edmonton, Canada; the Department of Biochemical Molecular Biology (B.K.), Merck Frosst Centre for Therapeutic Research, Montreal, QC, Canada; and the Department of Biochemistry (J.T.B.), Memorial University of Newfoundland, St. John\u2019s, Newfoundland."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Gordon A.","family":"Francis","sequence":"additional","affiliation":[{"name":"From the Group on Molecular and Cell Biology of Lipids (Y.Z., B.S., R.L.J., G.A.F., E.W., J.E.V., D.E.V.) and the Departments of Biochemistry (Y.Z., B.S., R.L.J., D.E.V.) and Medicine (G.A.F., E.W., J.E.V.), University of Alberta, Edmonton, Canada; the Department of Biochemical Molecular Biology (B.K.), Merck Frosst Centre for Therapeutic Research, Montreal, QC, Canada; and the Department of Biochemistry (J.T.B.), Memorial University of Newfoundland, St. John\u2019s, Newfoundland."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Emma","family":"Waddington","sequence":"additional","affiliation":[{"name":"From the Group on Molecular and Cell Biology of Lipids (Y.Z., B.S., R.L.J., G.A.F., E.W., J.E.V., D.E.V.) and the Departments of Biochemistry (Y.Z., B.S., R.L.J., D.E.V.) and Medicine (G.A.F., E.W., J.E.V.), University of Alberta, Edmonton, Canada; the Department of Biochemical Molecular Biology (B.K.), Merck Frosst Centre for Therapeutic Research, Montreal, QC, Canada; and the Department of Biochemistry (J.T.B.), Memorial University of Newfoundland, St. John\u2019s, Newfoundland."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"John T.","family":"Brosnan","sequence":"additional","affiliation":[{"name":"From the Group on Molecular and Cell Biology of Lipids (Y.Z., B.S., R.L.J., G.A.F., E.W., J.E.V., D.E.V.) and the Departments of Biochemistry (Y.Z., B.S., R.L.J., D.E.V.) and Medicine (G.A.F., E.W., J.E.V.), University of Alberta, Edmonton, Canada; the Department of Biochemical Molecular Biology (B.K.), Merck Frosst Centre for Therapeutic Research, Montreal, QC, Canada; and the Department of Biochemistry (J.T.B.), Memorial University of Newfoundland, St. John\u2019s, Newfoundland."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Jean E.","family":"Vance","sequence":"additional","affiliation":[{"name":"From the Group on Molecular and Cell Biology of Lipids (Y.Z., B.S., R.L.J., G.A.F., E.W., J.E.V., D.E.V.) and the Departments of Biochemistry (Y.Z., B.S., R.L.J., D.E.V.) and Medicine (G.A.F., E.W., J.E.V.), University of Alberta, Edmonton, Canada; the Department of Biochemical Molecular Biology (B.K.), Merck Frosst Centre for Therapeutic Research, Montreal, QC, Canada; and the Department of Biochemistry (J.T.B.), Memorial University of Newfoundland, St. John\u2019s, Newfoundland."}],"role":[{"vocabulary":"crossref","role":"author"}]},{"given":"Dennis E.","family":"Vance","sequence":"additional","affiliation":[{"name":"From the Group on Molecular and Cell Biology of Lipids (Y.Z., B.S., R.L.J., G.A.F., E.W., J.E.V., D.E.V.) and the Departments of Biochemistry (Y.Z., B.S., R.L.J., D.E.V.) and Medicine (G.A.F., E.W., J.E.V.), University of Alberta, Edmonton, Canada; the Department of Biochemical Molecular Biology (B.K.), Merck Frosst Centre for Therapeutic Research, Montreal, QC, Canada; and the Department of Biochemistry (J.T.B.), Memorial University of Newfoundland, St. John\u2019s, Newfoundland."}],"role":[{"vocabulary":"crossref","role":"author"}]}],"member":"276","reference":[{"key":"e_1_3_3_1_2","first-page":"233","volume":"407","year":"2000","unstructured":"Lusis AJ. 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