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5. Reduced Plasma HDL Cholesterol in Hyperthyroid Mice Coincides with Decreased Hepatic ABCA1 Expression

Author

TANCEVSKI, IVAN, WEHINGER, ANDREAS, DEMETZ, EGON, ELLER, PHILIPP, DUWENSEE, KRISTINA, HUBER, JULIA, HOCHEGGER, KATHRIN, SCHGOER, WILFRIED, FIEVET, CATHERINE, STELLAARD, FRANS, RUDLING, MATS, PATSCH, JOSEF R., and RITSCH, ANDREAS

Subjects
Male, Mice, Inbred BALB C, Reverse Transcriptase Polymerase Chain Reaction, Blotting, Western, Cholesterol, HDL, Gene Expression, Hyperthyroidism, Article, Feces, Mice, Cholesterol, Liver, Animals, Bile, lipids (amino acids, peptides, and proteins), ATP-Binding Cassette Transporters, ATP Binding Cassette Transporter 1
Abstract

The aim of the study was to investigate the influence of severe hyperthyroidism on plasma high-density lipoprotein cholesterol (HDL-C). Recently, it was shown in mice that increasing doses of T(3) up-regulate hepatic expression of scavenger receptor class B, type I, resulting in increased clearance of plasma HDL-C. Here, we show that severe hyperthyroidism in mice did not affect hepatic expression of scavenger receptor class B, type I, but reduced hepatic expression of ATP-binding cassette transporter 1, accompanied by a 40% reduction of HDL-C. The sterol content of bile, liver, and feces was markedly increased, accompanied by up-regulation of hepatic cholesterol 7alpha-hydroxylase, and ATP-binding cassette transporter 5, which is known to promote biliary sterol secretion upon dimerization with ATP-binding cassette transporter 8. Both control and hyperthyroid mice exerted identical plasma clearance of iv injected [(3)H]HDL-C, supporting the view that severe hyperthyroidism does not affect HDL-C clearance but, rather, its formation via hepatic ATP-binding cassette transporter 1.

Published
2008

6. Inhibition of hepatic scavenger receptor-class B type I by RNA interference decreases atherosclerosis in rabbits

Author

Demetz, Egon, primary, Tancevski, Ivan, additional, Duwensee, Kristina, additional, Stanzl, Ursula, additional, Huber, Eva, additional, Heim, Christiane, additional, Handle, Florian, additional, Theurl, Markus, additional, Schroll, Andrea, additional, Tailleux, Anne, additional, Dietrich, Hermann, additional, Patsch, Josef R., additional, Eller, Philipp, additional, and Ritsch, Andreas, additional

Published
2012
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7. Leoligin, the major lignan from Edelweiss, activates cholesteryl ester transfer protein

Author

Duwensee, Kristina, primary, Schwaiger, Stefan, additional, Tancevski, Ivan, additional, Eller, Kathrin, additional, van Eck, Miranda, additional, Markt, Patrick, additional, Linder, Tobias, additional, Stanzl, Ursula, additional, Ritsch, Andreas, additional, Patsch, Josef R., additional, Schuster, Daniela, additional, Stuppner, Hermann, additional, Bernhard, David, additional, and Eller, Philipp, additional

Published
2011
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9. The Liver-Selective Thyromimetic T-0681 Influences Reverse Cholesterol Transport and Atherosclerosis Development in Mice

Author

Tancevski, Ivan, primary, Demetz, Egon, additional, Eller, Philipp, additional, Duwensee, Kristina, additional, Hoefer, Julia, additional, Heim, Christiane, additional, Stanzl, Ursula, additional, Wehinger, Andreas, additional, Auer, Kristina, additional, Karer, Regina, additional, Huber, Julia, additional, Schgoer, Wilfried, additional, Van Eck, Miranda, additional, Vanhoutte, Jonathan, additional, Fievet, Catherine, additional, Stellaard, Frans, additional, Rudling, Mats, additional, Patsch, Josef R., additional, and Ritsch, Andreas, additional

Published
2010
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10. The thyromimetic T-0681 protects from atherosclerosis

Author

Tancevski, Ivan, primary, Wehinger, Andreas, additional, Demetz, Egon, additional, Hoefer, Julia, additional, Eller, Philipp, additional, Huber, Eva, additional, Stanzl, Ursula, additional, Duwensee, Kristina, additional, Auer, Kristina, additional, Schgoer, Wilfried, additional, Kuhn, Volker, additional, Fievet, Catherine, additional, Stellaard, Frans, additional, Rudling, Mats, additional, Foeger, Bernhard, additional, Patsch, Josef R., additional, and Ritsch, Andreas, additional

Published
2009
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