{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,5,14]],"date-time":"2026-05-14T14:22:29Z","timestamp":1778768549665,"version":"3.51.4"},"reference-count":42,"publisher":"Ovid Technologies (Wolters Kluwer Health)","issue":"5","content-domain":{"domain":["www.ahajournals.org"],"crossmark-restriction":true},"short-container-title":["Hypertension"],"published-print":{"date-parts":[[2005,5]]},"abstract":"<jats:p>Fatty liver is extremely common in insulin-resistant patients with either obesity or lipodystrophy and it has been proposed that hepatic steatosis be considered an additional feature of the metabolic syndrome. Although insulin resistance can promote fatty liver, excessive hepatic accumulation of fat can also promote insulin resistance and could contribute to the pathogenesis of the metabolic syndrome. We sought to create a new nonobese rat model with hypertension, hepatic steatosis, and the metabolic syndrome by transgenic overexpression of a sterol-regulatory element-binding protein (SREBP-1a) in the spontaneously hypertensive rat (SHR). SREBPs are transcription factors that activate the expression of multiple genes involved in the hepatic synthesis of cholesterol, triglycerides, and fatty acids. The new transgenic strain of SHR overexpressing a dominant-positive form of human SREBP-1a under control of the phosphoenolpyruvate carboxykinase (PEPCK) promoter exhibited marked hepatic steatosis with major biochemical features of the metabolic syndrome, including hyperglycemia, hyperinsulinemia, and hypertriglyceridemia. Both oxidative and nonoxidative skeletal muscle glucose metabolism were significantly impaired in the SHR transgenic strain and glucose tolerance deteriorated as the animals aged. The SHR transgenic strain also exhibited reduced body weight and reduced adipose tissue stores; however, the level of hypertension in the transgenic SHR was similar to that in the nontransgenic SHR control. The transgenic SHR overexpressing SREBP-1a represents a nonobese rat model of fatty liver, disordered glucose and lipid metabolism, and hypertension that may provide new opportunities for studying the pathogenesis and treatment of the metabolic syndrome associated with hepatic steatosis.<\/jats:p>","DOI":"10.1161\/01.hyp.0000161995.64192.2b","type":"journal-article","created":{"date-parts":[[2005,4,5]],"date-time":"2005-04-05T00:30:38Z","timestamp":1112661038000},"page":"1004-1011","update-policy":"https:\/\/doi.org\/10.1161\/crossmarkpolicy","source":"Crossref","is-referenced-by-count":28,"title":["A New Transgenic Rat Model of Hepatic Steatosis and the Metabolic Syndrome"],"prefix":"10.1161","volume":"45","author":[{"given":"Nathan R.","family":"Qi","sequence":"first","affiliation":[{"name":"From the Department of Laboratory Medicine (N.Q., J.W., T.W.K.), University of California, San Francisco; Institute of Physiology (V.Z., V.L., P.M., M.P.), Czech Academy of Sciences and the Center for Applied Genomics, Prague, Czech Republic; and the Institute for Clinical and Experimental Medicine (L.K.), Prague, Czech Republic."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Jiaming","family":"Wang","sequence":"additional","affiliation":[{"name":"From the Department of Laboratory Medicine (N.Q., J.W., T.W.K.), University of California, San Francisco; Institute of Physiology (V.Z., V.L., P.M., M.P.), Czech Academy of Sciences and the Center for Applied Genomics, Prague, Czech Republic; and the Institute for Clinical and Experimental Medicine (L.K.), Prague, Czech Republic."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Vaclav","family":"Zidek","sequence":"additional","affiliation":[{"name":"From the Department of Laboratory Medicine (N.Q., J.W., T.W.K.), University of California, San Francisco; Institute of Physiology (V.Z., V.L., P.M., M.P.), Czech Academy of Sciences and the Center for Applied Genomics, Prague, Czech Republic; and the Institute for Clinical and Experimental Medicine (L.K.), Prague, Czech Republic."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Vladimir","family":"Landa","sequence":"additional","affiliation":[{"name":"From the Department of Laboratory Medicine (N.Q., J.W., T.W.K.), University of California, San Francisco; Institute of Physiology (V.Z., V.L., P.M., M.P.), Czech Academy of Sciences and the Center for Applied Genomics, Prague, Czech Republic; and the Institute for Clinical and Experimental Medicine (L.K.), Prague, Czech Republic."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Petr","family":"Mlejnek","sequence":"additional","affiliation":[{"name":"From the Department of Laboratory Medicine (N.Q., J.W., T.W.K.), University of California, San Francisco; Institute of Physiology (V.Z., V.L., P.M., M.P.), Czech Academy of Sciences and the Center for Applied Genomics, Prague, Czech Republic; and the Institute for Clinical and Experimental Medicine (L.K.), Prague, Czech Republic."}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Ludmila","family":"Kazdova\u0301","sequence":"additional","affiliation":[{"name":"From the Department of Laboratory Medicine (N.Q., J.W., T.W.K.), University of California, San Francisco; Institute of Physiology (V.Z., V.L., P.M., M.P.), Czech Academy of Sciences and the Center for Applied Genomics, Prague, Czech Republic; 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