Abstract
Background/Aim
Statin treatment improves endothelial function. It is matter of debate, however, if this effect of statins is due to their action on low-density lipoprotein cholesterol (LDL-C) or to other non-lipidic (pleiotropic) effects. The aim of this study was to evaluate whether the effect of pravastatin on endothelial function is mediated by pleiotropic effects. We therefore compared the effect of pravastatin and ezetimibe, a cholesterol absorption inhibitor, at doses yielding similar reductions in LDL-C and examined the effect of the two treatments on flow-mediated dilation (FMD) in hypercholesterolemic subjects.
Methods
A total of 33 moderately hypercholesterolemic patients were randomized into three treatment groups to receive ezetimibe 10 mg/day (n = 10), pravastatin 10 mg/day (n = 13) or no treatment (control, n = 10) for 6 weeks. To assess endothelial function, we determined FMD of the brachial artery non-invasively by high-resolution ultrasound before and after treatment.
Results
Ezetimibe and pravastatin treatment reduced LDL-C (mean ± standard error) to a similar extent (−20.6 ± 4.1 vs. −24.1 ± 4.0 %, respectively; P = 0.4771), while no decrease was observed in the control group. FMD increased significantly after treatment with ezetimibe (from 11.4 ± 5.7 to 16.8 ± 3.6 %; P = 0.022) and with pravastatin (from 13.7 ± 4.9 to 17.5 ± 4.4 %; P = 0.0466), but not in the control group. There were no differences in the endothelial function changes between the two treatment groups.
Conclusions
In this study, two treatments that lower cholesterol via different mechanisms improved endothelial function to a similar extent, suggesting that the observed effect can be explained by the reduction of cholesterol levels.
Similar content being viewed by others
References
Werns SW, Walton JA, Hsia HH, Nabel EG, Sanz ML, Pitt B (1989) Evidence of endothelial dysfunction in angiographically normal coronary arteries of patients with coronary artery disease. Circulation 79(2):287–291
Endemann DH, Schiffrin EL (2004) Endothelial dysfunction. J Am Soc Nephrol 15(8):1983–1992
Steinberg D, Parthasarathy S, Carew TE, Khoo JC, Witztum JL (1989) Beyond cholesterol. Modifications of low-density lipoprotein that increase its atherogenicity. N Engl J Med 320(14):915–924
Yang Z, Ming XF (2006) Recent advances in understanding endothelial dysfunction in atherosclerosis. Clin Med Res 4(1):53–65
Scandinavian Simvastatin Survival Study Group (1994) Randomised trial of cholesterol lowering in 4444 patients with coronary heart disease: the Scandinavian Simvastatin Survival Study (4 S). Lancet 344 (8934): 1383-1389
Shepherd J, Cobbe SM, Ford I, Isles CG, Lorimer AR, MacFarlane PW, McKillop JH, Packard CJ (1995) Prevention of coronary heart disease with pravastatin in men with hypercholesterolemia. West of Scotland Coronary Prevention Study Group. N Engl J Med 333(20):1301–1307
Tamai O, Matsuoka H, Itabe H, Wada Y, Kohno K, Imaizumi T (1997) Single LDL apheresis improves endothelium-dependent vasodilatation in hypercholesterolemic humans. Circulation 95(1):76–82
Anderson TJ, Meredith IT, Yeung AC, Frei B, Selwyn AP, Ganz P (1995) The effect of cholesterol-lowering and antioxidant therapy on endothelium-dependent coronary vasomotion. N Engl J Med 332(8):488–493
Essig M, Nguyen G, Prie D, Escoubet B, Sraer JD, Friedlander G (1998) 3-Hydroxy-3-methylglutaryl coenzyme A reductase inhibitors increase fibrinolytic activity in rat aortic endothelial cells. Role of geranylgeranylation and Rho proteins. Circ Res 83(7):683–690
Laufs U, Fata VL, Liao JK (1997) Inhibition of 3-hydroxy-3-methylglutaryl (HMG)-CoA reductase blocks hypoxia-mediated down-regulation of endothelial nitric oxide synthase. J Biol Chem 272(50):31725–31729
O'Driscoll G, Green D, Taylor RR (1997) Simvastatin, an HMG-coenzyme A reductase inhibitor, improves endothelial function within 1 month. Circulation 95(5):1126–1131
Palinski W (2001) New evidence for beneficial effects of statins unrelated to lipid lowering. Arterioscler Thromb Vasc Biol 21(1):3–5
Wassmann S, Laufs U, Muller K, Konkol C, Ahlbory K, Baumer AT, Linz W, Bohm M, Nickenig G (2002) Cellular antioxidant effects of atorvastatin in vitro and in vivo. Arterioscler Thromb Vasc Biol 22(2):300–305
Gagne C, Bays HE, Weiss SR, Mata P, Quinto K, Melino M, Cho M, Musliner TA, Gumbiner B (2002) Efficacy and safety of ezetimibe added to ongoing statin therapy for treatment of patients with primary hypercholesterolemia. Am J Cardiol 90(10):1084–1091
Gupta EK, Ito MK (2002) Ezetimibe: the first in a novel class of selective cholesterol-absorption inhibitors. Heart Dis 4(6):399–409
Bulut D, Hanefeld C, Bulut-Streich N, Graf C, Mugge A, Spiecker M (2005) Endothelial function in the forearm circulation of patients with the metabolic syndrome–effect of different lipid-lowering regimens. Cardiology 104(4):176–180
Settergren M, Bohm F, Ryden L, Pernow J (2008) Cholesterol lowering is more important than pleiotropic effects of statins for endothelial function in patients with dysglycaemia and coronary artery disease. Eur Heart J 29(14):1753–1760
Maki-Petaja KM, Booth AD, Hall FC, Wallace SM, Brown J, McEniery CM, Wilkinson IB (2007) Ezetimibe and simvastatin reduce inflammation, disease activity, and aortic stiffness and improve endothelial function in rheumatoid arthritis. J Am Coll Cardiol 50(9):852–858
Olijhoek JK, Hajer GR, van der Graaf Y, Dallinga-Thie GM, Visseren FL (2008) The effects of low-dose simvastatin and ezetimibe compared to high-dose simvastatin alone on post-fat load endothelial function in patients with metabolic syndrome: a randomized double-blind crossover trial. J Cardiovasc Pharmacol 52(2):145–150
Landmesser U, Bahlmann F, Mueller M, Spiekermann S, Kirchhoff N, Schulz S, Manes C, Fischer D, de Groot K, Fliser D, Fauler G, Marz W, Drexler H (2005) Simvastatin versus ezetimibe: pleiotropic and lipid-lowering effects on endothelial function in humans. Circulation 111(18):2356–2363
Gounari P, Tousoulis D, Antoniades C, Kampoli AM, Stougiannos P, Papageorgiou N, Roulia G, Stefanadi E, Siasos G, Tsioufis C, Stefanadis C (2010) Rosuvastatin but not ezetimibe improves endothelial function in patients with heart failure, by mechanisms independent of lipid lowering. Int J Cardiol 142(1):87–91
Liu PY, Liu YW, Lin LJ, Chen JH, Liao JK (2009) Evidence for statin pleiotropy in humans: differential effects of statins and ezetimibe on rho-associated coiled-coil containing protein kinase activity, endothelial function, and inflammation. Circulation 119(1):131–138
Efrati S, Averbukh M, Dishy V, Faygenzo M, Friedensohn L, Golik A (2007) The effect of simvastatin, ezetimibe and their combination on the lipid profile, arterial stiffness and inflammatory markers. Eur J Clin Pharmacol 63(2):113–121
Fichtlscherer S, Schmidt-Lucke C, Bojunga S, Rossig L, Heeschen C, Dimmeler S, Zeiher AM (2006) Differential effects of short-term lipid lowering with ezetimibe and statins on endothelial function in patients with CAD: clinical evidence for 'pleiotropic' functions of statin therapy. Eur Heart J 27(10):1182–1190
Ostad MA, Eggeling S, Tschentscher P, Schwedhelm E, Boger R, Wenzel P, Meinertz T, Munzel T, Warnholtz A (2009) Flow-mediated dilation in patients with coronary artery disease is enhanced by high dose atorvastatin compared to combined low dose atorvastatin and ezetimibe: results of the CEZAR study. Atherosclerosis 205(1):227–232
Mullen MJ, Thorne SA, Deanfield JE, Jones CJ (1997) Non-invasive assessment of endothelial function. Heart 77(4):297–298
Maggi FM, Raselli S, Grigore L, Redaelli L, Fantappie S, Catapano AL (2004) Lipoprotein remnants and endothelial dysfunction in the postprandial phase. J Clin Endocrinol Metab 89(6):2946–2950
Norata GD, Raselli S, Grigore L, Garlaschelli K, Vianello D, Bertocco S, Zambon A, Catapano AL (2009) Small dense LDL and VLDL predict common carotid artery IMT and elicit an inflammatory response in peripheral blood mononuclear and endothelial cells. Atherosclerosis 206(2):556–562
Sadowitz B, Maier KG, Gahtan V (2010) Basic science review: Statin therapy–Part I: The pleiotropic effects of statins in cardiovascular disease. Vasc Endovascular Surg 44(4):241–251
Laufs U, La Fata V, Plutzky J, Liao JK (1998) Upregulation of endothelial nitric oxide synthase by HMG CoA reductase inhibitors. Circulation 97(12):1129–1135
Dimmeler S, Aicher A, Vasa M, Mildner-Rihm C, Adler K, Tiemann M, Rutten H, Fichtlscherer S, Martin H, Zeiher AM (2001) HMG-CoA reductase inhibitors (statins) increase endothelial progenitor cells via the PI 3-kinase/Akt pathway. J Clin Invest 108(3):391–397
Assmus B, Urbich C, Aicher A, Hofmann WK, Haendeler J, Rossig L, Spyridopoulos I, Zeiher AM, Dimmeler S (2003) HMG-CoA reductase inhibitors reduce senescence and increase proliferation of endothelial progenitor cells via regulation of cell cycle regulatory genes. Circ Res 92(9):1049–1055
Llevadot J, Murasawa S, Kureishi Y, Uchida S, Masuda H, Kawamoto A, Walsh K, Isner JM, Asahara T (2001) HMG-CoA reductase inhibitor mobilizes bone marrow–derived endothelial progenitor cells. J Clin Invest 108(3):399–405
Moncada S, Radomski MW, Palmer RM (1988) Endothelium-derived relaxing factor. Identification as nitric oxide and role in the control of vascular tone and platelet function. Biochem Pharmacol 37(13):2495–2501
Creager MA, Cooke JP, Mendelsohn ME, Gallagher SJ, Coleman SM, Loscalzo J, Dzau VJ (1990) Impaired vasodilation of forearm resistance vessels in hypercholesterolemic humans. J Clin Invest 86(1):228–234
Casino PR, Kilcoyne CM, Quyyumi AA, Hoeg JM, Panza JA (1993) The role of nitric oxide in endothelium-dependent vasodilation of hypercholesterolemic patients. Circulation 88(6):2541–2547
Bonetti PO, Lerman LO, Lerman A (2003) Endothelial dysfunction: a marker of atherosclerotic risk. Arterioscler Thromb Vasc Biol 23(2):168–175
Jarvisalo MJ, Toikka JO, Vasankari T, Mikkola J, Viikari JS, Hartiala JJ, Raitakari OT (1999) HMG CoA reductase inhibitors are related to improved systemic endothelial function in coronary artery disease. Atherosclerosis 147(2):237–242
Inoue T, Node K (2007) Statin therapy for vascular failure. Cardiovasc Drugs Ther 21(4):281–295
Wagner AH, Kohler T, Ruckschloss U, Just I, Hecker M (2000) Improvement of nitric oxide-dependent vasodilatation by HMG-CoA reductase inhibitors through attenuation of endothelial superoxide anion formation. Arterioscler Thromb Vasc Biol 20(1):61–69
Feron O, Dessy C, Desager JP, Balligand JL (2001) Hydroxy-methylglutaryl-coenzyme A reductase inhibition promotes endothelial nitric oxide synthase activation through a decrease in caveolin abundance. Circulation 103(1):113–118
Frick M, Alber HF, Hugel H, Schwarzacher SP, Pachinger O, Weidinger F (2002) Short- and long-term changes of flow-mediated vasodilation in patients under statin therapy. Clin Cardiol 25(6):291–294
Dupuis J, Tardif JC, Cernacek P, Theroux P (1999) Cholesterol reduction rapidly improves endothelial function after acute coronary syndromes. The RECIFE (reduction of cholesterol in ischemia and function of the endothelium) trial. Circulation 99(25):3227–3233
Egashira K, Hirooka Y, Kai H, Sugimachi M, Suzuki S, Inou T, Takeshita A (1994) Reduction in serum cholesterol with pravastatin improves endothelium-dependent coronary vasomotion in patients with hypercholesterolemia. Circulation 89(6):2519–2524
Andrews HE, Bruckdorfer KR, Dunn RC, Jacobs M (1987) Low-density lipoproteins inhibit endothelium-dependent relaxation in rabbit aorta. Nature 327(6119):237–239
Igarashi K, Tsuji M, Nishimura M, Horimoto M (2004) Improvement of endothelium-dependent coronary vasodilation after a single LDL apheresis in patients with hypercholesterolemia. J Clin Apher 19(1):11–16
Treasure CB, Klein JL, Weintraub WS, Talley JD, Stillabower ME, Kosinski AS, Zhang J, Boccuzzi SJ, Cedarholm JC, Alexander RW (1995) Beneficial effects of cholesterol-lowering therapy on the coronary endothelium in patients with coronary artery disease. N Engl J Med 332(8):481–487
Omori H, Nagashima H, Tsurumi Y, Takagi A, Ishizuka N, Hagiwara N, Kawana M, Kasanuki H (2002) Direct in vivo evidence of a vascular statin: a single dose of cerivastatin rapidly increases vascular endothelial responsiveness in healthy normocholesterolaemic subjects. Br J Clin Pharmacol 54(4):395–399
Davignon J (2004) Beneficial cardiovascular pleiotropic effects of statins. Circulation 109[23 Suppl 1]:III39–III43
Schonbeck U, Libby P (2004) Inflammation, immunity, and HMG-CoA reductase inhibitors: statins as antiinflammatory agents? Circulation 109[21 Suppl 1]:II18–II26
Thompson GR (2008) Recommendations for the use of LDL apheresis. Atherosclerosis 198(2):247–255
Thompson GR, Catapano A, Saheb S, Atassi-Dumont M, Barbir M, Eriksson M, Paulweber B, Sijbrands E, Stalenhoef AF, Parhofer KG (2010) Severe hypercholesterolaemia: therapeutic goals and eligibility criteria for LDL apheresis in Europe. Curr Opin Lipidol 21(6):492–498
Baigent C, Landray MJ, Reith C, Emberson J, Wheeler DC, Tomson C, Wanner C, Krane V, Cass A, Craig J, Neal B, Jiang L, Hooi LS, Levin A, Agodoa L, Gaziano M, Kasiske B, Walker R, Massy ZA, Feldt-Rasmussen B, Krairittichai U, Ophascharoensuk V, Fellstrom B, Holdaas H, Tesar V, Wiecek A, Grobbee D, de Zeeuw D, Gronhagen-Riska C, Dasgupta T, Lewis D, Herrington W, Mafham M, Majoni W, Wallendszus K, Grimm R, Pedersen T, Tobert J, Armitage J, Baxter A, Bray C, Chen Y, Chen Z, Hill M, Knott C, Parish S, Simpson D, Sleight P, Young A, Collins R (2011) The effects of lowering LDL cholesterol with simvastatin plus ezetimibe in patients with chronic kidney disease (Study of Heart and Renal Protection): a randomised placebo-controlled trial. Lancet 377(9784):2181–2192
Abd TT, Jacobson TA (2011) Statin-induced myopathy: a review and update. Expert Opin Drug Saf 10(3):373–387
Armitage J (2007) The safety of statins in clinical practice. Lancet 370(9601):1781–1790
Conflict of interest
A.L.C. is a member of the speaker bureau for Merck, AstraZeneca, Sanofi, Genzyme and Sigma-Tau and is on the advisory board of Merck, AstraZeneca, Sanofi, Genzyme and Aegerion.
Financial disclosures
This work was supported by SISA (Società Italiana per lo Studio dell’Aterosclerosi, Lombardia section)
Author information
Authors and Affiliations
Corresponding authors
Rights and permissions
About this article
Cite this article
Grigore, L., Raselli, S., Garlaschelli, K. et al. Effect of treatment with pravastatin or ezetimibe on endothelial function in patients with moderate hypercholesterolemia. Eur J Clin Pharmacol 69, 341–346 (2013). https://doi.org/10.1007/s00228-012-1345-z
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s00228-012-1345-z