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(Circulation. 1996;94:258-265.)
© 1996 American Heart Association, Inc.


Articles

Angiotensin-Converting Enzyme Inhibition With Quinapril Improves Endothelial Vasomotor Dysfunction in Patients With Coronary Artery Disease

The TREND (Trial on Reversing ENdothelial Dysfunction) Study

G.B. John Mancini, MD; Gregory C. Henry, MS; Carlos Macaya, MD; Blair J. O'Neill, MD; Anthony L. Pucillo, MD; Ronald G. Carere, MD; Thomas J. Wargovich, MD; Harald Mudra, MD; Thomas F. Luscher, MD; Michael I. Klibaner, MD; Harry E. Haber, MPH; Andrew C.G. Uprichard, MD; Carl J. Pepine, MD; Bertram Pitt, MD

the University of British Columbia, Vancouver, British Columbia, Canada (G.B.J.M.); Parke-Davis Pharmaceutical Research, Ann Arbor, Mich (G.C.H., M.I.K., H.E.H., A.C.G.U.); Hospital Clinico Universitaro, Madrid, Spain (C.M.); Dalhousie University, Halifax, Nova Scotia, Canada (B.J.O.); Westchester County Medical Center, Valhalla, NY (A.L.P.); St Paul's Hospital, Vancouver, British Columbia, Canada (R.G.C.); University of Florida, Gainesville (T.J.W., C.J.P.); Klinikum Innenstadt der Universitat, Munchen, Germany (H.M.); Inselspital Bern, Switzerland (T.F.L.); and University of Michigan, Ann Arbor (B.P.).

Background Angiotensin-converting enzyme (ACE) inhibitors may exert some of their benefits in the therapy of hypertension, congestive heart failure, and acute myocardial infarction by their improvement of endothelial dysfunction. TREND (Trial on Reversing ENdothelial Dysfunction) investigated whether quinapril might improve endothelial dysfunction in normotensive patients with coronary artery disease and no heart failure, cardiomyopathy, or major lipid abnormalities so that confounding variables that affect endothelial dysfunction could be minimized.

Methods and Results Using a double-blind, randomized, placebo-controlled design, we measured the effects of quinapril (40 mg daily) on coronary artery diameter responses to acetylcholine using quantitative coronary angiography. The primary response variable was the net change in the acetylcholine-provoked constriction of target segments between the baseline (prerandomization) and 6-month follow-up angiograms. The constrictive responses to acetylcholine were comparable in the placebo (n=54) and quinapril (n=51) groups at baseline. After 6 months, only the quinapril group showed significant net improvement in response to incremental concentrations of acetylcholine (4.5±3.0% [mean±SEM] versus -0.1±2.8% at 10-6 mol/L and 12.1±3.0% versus -0.8±2.9% at 10-4 mol/L, quinapril versus placebo, respectively; overall P=.002).

Conclusions TREND shows that ACE inhibition with quinapril improved endothelial dysfunction in patients who were normotensive and who did not have severe hyperlipidemia or evidence of heart failure. These benefits of ACE inhibition are likely due to attenuation of the contractile effects and superoxide-generating effects of angiotensin II and to enhancement of endothelial cell release of nitric oxide secondary to diminished breakdown of bradykinin.


Key Words: angiotensin • coronary disease • endothelium-derived factors • acetylcholine




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Eur Heart J SupplHome page
M.E. Bertrand and J.-P. Bassand
New evidence for angiotensin-converting enzyme inhibition in stroke, cardiac and renal patients: the cardiological approach
Eur. Heart J. Suppl., July 1, 2003; 5(suppl_E): E1 - E3.
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CirculationHome page
R. Hambrecht, V. Adams, S. Erbs, A. Linke, N. Krankel, Y. Shu, Y. Baither, S. Gielen, H. Thiele, J.F. Gummert, et al.
Regular Physical Activity Improves Endothelial Function in Patients With Coronary Artery Disease by Increasing Phosphorylation of Endothelial Nitric Oxide Synthase
Circulation, July 1, 2003; 107(25): 3152 - 3158.
[Abstract] [Full Text] [PDF]


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CirculationHome page
P. V. Targonski, P. O. Bonetti, G. M. Pumper, S. T. Higano, D. R. Holmes Jr, and A. Lerman
Coronary Endothelial Dysfunction Is Associated With an Increased Risk of Cerebrovascular Events
Circulation, June 10, 2003; 107(22): 2805 - 2809.
[Abstract] [Full Text] [PDF]


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Arch Intern MedHome page
B. M. Singh and J. L. Mehta
Interactions Between the Renin-Angiotensin System and Dyslipidemia: Relevance in the Therapy of Hypertension and Coronary Heart Disease
Arch Intern Med, June 9, 2003; 163(11): 1296 - 1304.
[Abstract] [Full Text] [PDF]


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Journal of Renin-Angiotensin-Aldosterone SystemHome page
H. Tezcan, D. Yavuz, A. Toprak, I. Akpmar, M. Koc, O. Deyneli, and S. Akalm
Effect of angiotensin-converting enzyme inhibition on endothelial function and insulin sensitivity in hypertensive patients
Journal of Renin-Angiotensin-Aldosterone System, June 1, 2003; 4(2): 119 - 123.
[Abstract] [PDF]


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Am. J. Pathol.Home page
G. Fernandez-Varo, J. Ros, M. Morales-Ruiz, P. Cejudo-Martin, V. Arroyo, M. Sole, F. Rivera, J. Rodes, and W. Jimenez
Nitric Oxide Synthase 3-Dependent Vascular Remodeling and Circulatory Dysfunction in Cirrhosis
Am. J. Pathol., June 1, 2003; 162(6): 1985 - 1993.
[Abstract] [Full Text] [PDF]


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HypertensionHome page
L. Ghiadoni, A. Magagna, D. Versari, I. Kardasz, Y. Huang, S. Taddei, and A. Salvetti
Different Effect of Antihypertensive Drugs on Conduit Artery Endothelial Function
Hypertension, June 1, 2003; 41(6): 1281 - 1286.
[Abstract] [Full Text] [PDF]


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J. Physiol.Home page
T. Itoh, J. Kajikuri, T. Tada, Y. Suzuki, and Y. Mabuchi
Angiotensin II-induced modulation of endothelium-dependent relaxation in rabbit mesenteric resistance arteries
J. Physiol., May 1, 2003; 548(3): 893 - 906.
[Abstract] [Full Text] [PDF]


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HypertensionHome page
B. Hornig, C. Kohler, D. Schlink, H. Tatge, and H. Drexler
AT1-Receptor Antagonism Improves Endothelial Function in Coronary Artery Disease by a Bradykinin/B2-Receptor-Dependent Mechanism
Hypertension, May 1, 2003; 41(5): 1092 - 1095.
[Abstract] [Full Text] [PDF]


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J Am Coll CardiolHome page
T. Matsumoto, K. Minai, H. Horie, N. Ohira, H. Takashima, Y. Tarutani, Y. o Yasuda, T. Ozawa, S. Matsuo, M. Kinoshita, et al.
Angiotensin-converting enzyme inhibition but not angiotensin II type 1 receptor antagonism augments coronary release of tissue plasminogen activator in hypertensive patients
J. Am. Coll. Cardiol., April 16, 2003; 41(8): 1373 - 1379.
[Abstract] [Full Text] [PDF]


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Arterioscler. Thromb. Vasc. Bio.Home page
M. Weis and J. P. Cooke
Cardiac Allograft Vasculopathy and Dysregulation of the NO Synthase Pathway
Arterioscler Thromb Vasc Biol, April 1, 2003; 23(4): 567 - 575.
[Abstract] [Full Text] [PDF]


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Postgrad. Med. J.Home page
Z S Nedeljkovic, N Gokce, and J Loscalzo
Mechanisms of oxidative stress and vascular dysfunction
Postgrad. Med. J., April 1, 2003; 79(930): 195 - 200.
[Abstract] [Full Text] [PDF]


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Arterioscler. Thromb. Vasc. Bio.Home page
T. H. Schindler, B. Hornig, P. T. Buser, M. Olschewski, N. Magosaki, M. Pfisterer, E. U. Nitzsche, U. Solzbach, and H. Just
Prognostic Value of Abnormal Vasoreactivity of Epicardial Coronary Arteries to Sympathetic Stimulation in Patients With Normal Coronary Angiograms
Arterioscler Thromb Vasc Biol, March 1, 2003; 23(3): 495 - 501.
[Abstract] [Full Text] [PDF]


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J Am Coll CardiolHome page
V. S. Monroe, R. A. Kerensky, E. Rivera, K. M. Smith, and C. J. Pepine
Pharmacologic plaque passivation for the reduction of recurrent cardiac events in acute coronary syndromes
J. Am. Coll. Cardiol., February 19, 2003; 41(4_Suppl_S): 23S - 30S.
[Abstract] [Full Text] [PDF]


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J Am Coll CardiolHome page
T. J. Anderson, J. Hubacek, D. G. Wyse, and M. L. Knudtson
Effect of chelation therapy on endothelial function in patients with coronary artery disease: PATCH substudy
J. Am. Coll. Cardiol., February 5, 2003; 41(3): 420 - 425.
[Abstract] [Full Text] [PDF]


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Arterioscler. Thromb. Vasc. Bio.Home page
P. O. Bonetti, L. O. Lerman, and A. Lerman
Endothelial Dysfunction: A Marker of Atherosclerotic Risk
Arterioscler Thromb Vasc Biol, February 1, 2003; 23(2): 168 - 175.
[Abstract] [Full Text] [PDF]


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Am. J. Physiol. Heart Circ. Physiol.Home page
J. G. F. Bronzwaer, C. Heymes, C. A. Visser, and W. J. Paulus
Myocardial fibrosis blunts nitric oxide synthase-related preload reserve in human dilated cardiomyopathy
Am J Physiol Heart Circ Physiol, January 1, 2003; 284(1): H10 - H16.
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Am. J. Physiol. Heart Circ. Physiol.Home page
C. Staniloae, A. J. Schwab, A. Simard, R. Gallo, I. Dyrda, G. Gosselin, J. Lesperance, J. W. Ryan, and J. Dupuis
In vivo measurement of coronary circulation angiotensin-converting enzyme activity in humans
Am J Physiol Heart Circ Physiol, January 1, 2003; 284(1): H17 - H22.
[Abstract] [Full Text] [PDF]


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Arterioscler. Thromb. Vasc. Bio.Home page
C. Yan, D. Kim, T. Aizawa, and B. C. Berk
Functional Interplay Between Angiotensin II and Nitric Oxide: Cyclic GMP as a Key Mediator
Arterioscler Thromb Vasc Biol, January 1, 2003; 23(1): 26 - 36.
[Abstract] [Full Text] [PDF]


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Eur Heart J SupplHome page
U. Landmesser and H. Drexler
Oxidative stress, the renin-angiotensin system, and atherosclerosis
Eur. Heart J. Suppl., January 1, 2003; 5(suppl_A): A3 - A7.
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Eur Heart J SupplHome page
N. Werner and G. Nickenig
AT1 receptors in atherosclerosis: biological effects including growth, angiogenesis, and apoptosis
Eur. Heart J. Suppl., January 1, 2003; 5(suppl_A): A9 - A13.
[Abstract] [PDF]


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Eur Heart J SupplHome page
F. Enseleit, T.F. Luscher, and F. Ruschitzka
Angiotensin-converting enzyme inhibition and endothelial dysfunction: focus on ramipril
Eur. Heart J. Suppl., January 1, 2003; 5(suppl_A): A31 - A36.
[Abstract] [PDF]


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Eur Heart J SupplHome page
L. Murphey, D. Vaughan, and N. Brown
Contribution of bradykinin to the cardioprotective effects of ACE inhibitors
Eur. Heart J. Suppl., January 1, 2003; 5(suppl_A): A37 - A41.
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Eur Heart J SupplHome page
E. Lonn, H.C. Gerstein, M. Smieja, J.F.E. Mann, and S. Yusuf
Mechanisms of cardiovascular risk reduction with ramipril: insights from HOPE and HOPE substudies
Eur. Heart J. Suppl., January 1, 2003; 5(suppl_A): A43 - A48.
[Abstract] [PDF]


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Nephrol Dial TransplantHome page
V. Schachinger and A. M. Zeiher
Atherogenesis--recent insights into basic mechanisms and their clinical impact
Nephrol. Dial. Transplant., December 1, 2002; 17(12): 2055 - 2064.
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HeartHome page
C-K Wong and H D White
Relation between blood pressure after an acute coronary event and subsequent cardiovascular risk
Heart, December 1, 2002; 88(6): 555 - 558.
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Diabetes CareHome page
J. M. Fernandez-Real, G. Penarroja, A. Castro, F. Garcia-Bragado, A. Lopez-Bermejo, and W. Ricart
Blood Letting in High-Ferritin Type 2 Diabetes: Effects on vascular reactivity
Diabetes Care, December 1, 2002; 25(12): 2249 - 2255.
[Abstract] [Full Text] [PDF]


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Eur Heart JHome page
P. G. Hugenholtz
Greek technology or mythology?
Eur. Heart J., November 1, 2002; 23(21): 1639 - 1639.
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British Journal of Diabetes & Vascular DiseaseHome page
C. Mcdougall and M. Fisher
Prevention of diabetes in cardiovascular studies: implications for the aetiology of type 2 diabetes
The British Journal of Diabetes & Vascular Disease, September 1, 2002; 2(5): 384 - 389.
[Abstract] [PDF]


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Rheumatology (Oxford)Home page
P. Maddison
Prevention of vascular damage in scleroderma with angiotensin-converting enzyme (ACE) inhibition
Rheumatology, September 1, 2002; 41(9): 965 - 971.
[Abstract] [Full Text] [PDF]


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Cardiovasc ResHome page
J. G.F Bronzwaer, C. Zeitz, C. A Visser, and W. J Paulus
Endomyocardial nitric oxide synthase and the hemodynamic phenotypes of human dilated cardiomyopathy and of athlete's heart
Cardiovasc Res, August 1, 2002; 55(2): 270 - 278.
[Abstract] [Full Text] [PDF]


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J Am Coll CardiolHome page
E. Iraculis, A. Cequier, J. A. Gomez-Hospital, M. Sabate, J. Mauri, E. Fernandez-Nofrerias, B. Garcia del Blanco, F. Jara, and E. Esplugas
Early dysfunction and long-term improvement in endothelium-dependent vasodilation in the infarct-related artery after thrombolysis
J. Am. Coll. Cardiol., July 17, 2002; 40(2): 257 - 265.
[Abstract] [Full Text] [PDF]


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ANGIOLOGYHome page
R. A. Mangiafico, L. S. Malatino, T. Attina, R. Messina, and C. E. Fiore
Exaggerated Endothelin Release in Response to Acute Mental Stress in Patients with Intermittent Claudication
Angiology, July 1, 2002; 53(4): 383 - 390.
[Abstract] [PDF]