Lopinavir-Ritonavir: Effects on Endothelial Cell Function in Healthy Subjects

To differentiate between the effects that antiretroviral drugs have on the endothelium and the secondary effects that they have on immune function, viral load, and dyslipidemia, 6 non–human immunodeficiency virus–infected human subjects were treated with lopinavir-ritonavir for 1 month and, on the b...

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Published inThe Journal of infectious diseases Vol. 193; no. 11; pp. 1516 - 1519
Main Authors Grubb, Jessica R., Dejam, André, Voell, Jocelyn, Blackwelder, William C., Sklar, Peter A., Kovacs, Joseph A., Cannon, Richard O., Masur, Henry, Gladwin, Mark T.
Format Journal Article
LanguageEnglish
Published Chicago, IL The University of Chicago Press 01.06.2006
University of Chicago Press
Oxford University Press
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ISSN0022-1899
1537-6613
DOI10.1086/503807

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Abstract To differentiate between the effects that antiretroviral drugs have on the endothelium and the secondary effects that they have on immune function, viral load, and dyslipidemia, 6 non–human immunodeficiency virus–infected human subjects were treated with lopinavir-ritonavir for 1 month and, on the basis of forearm blood flow, the treatment’s effects on endothelial cell function were measured. Surprisingly, after exposure to lopinavir-ritonavir, absolute forearm blood-flow responses to the endothelium-dependent vasodilator, acetylcholine, increased significantly (P=.03), and forearm blood flow decreased to a greater extent during specific inhibition of NO synthase by NG-monomethyl-l-arginine. Thus, in this small cohort of subjects, short-term treatment with lopinavir-ritonavir does not appear to directly promote endothelial cell dysfunction
AbstractList To differentiate between the effects that antiretroviral drugs have on the endothelium and the secondary effects that they have on immune function, viral load, and dyslipidemia, 6 non-human immunodeficiency virus-infected human subjects were treated with lopinavir-ritonavir for 1 month and, on the basis of forearm blood flow, the treatment's effects on endothelial cell function were measured. Surprisingly, after exposure to lopinavir-ritonavir, absolute forearm bloodflow responses to the endothelium-dependent vasodilator, acetylcholine, increased significantly (P = .03), and forearm blood flow decreased to a greater extent during specific inhibition of NO synthase by$N^{G}-monomethyl-L-arginine$. Thus, in this small cohort of subjects, short-term treatment with lopinavir-ritonavir does not appear to directly promote endothelial cell dysfunction.
To differentiate between the effects that antiretroviral drugs have on the endothelium and the secondary effects that they have on immune function, viral load, and dyslipidemia, 6 non-human immunodeficiency virus-infected human subjects were treated with lopinavir-ritonavir for 1 month and, on the basis of forearm blood flow, the treatment's effects on endothelial cell function were measured. Surprisingly, after exposure to lopinavir-ritonavir, absolute forearm blood-flow responses to the endothelium-dependent vasodilator, acetylcholine, increased significantly (P=.03), and forearm blood flow decreased to a greater extent during specific inhibition of NO synthase by N(G)-monomethyl-L-arginine. Thus, in this small cohort of subjects, short-term treatment with lopinavir-ritonavir does not appear to directly promote endothelial cell dysfunction.
To differentiate between the effects that antiretroviral drugs have on the endothelium and the secondary effects that they have on immune function, viral load, and dyslipidemia, 6 non-human immunodeficiency virus-infected human subjects were treated with lopinavir-ritonavir for 1 month and, on the basis of forearm blood flow, the treatment's effects on endothelial cell function were measured. Surprisingly, after exposure to lopinavir-ritonavir, absolute forearm blood-flow responses to the endothelium-dependent vasodilator, acetylcholine, increased significantly (P = .03), and forearm blood flow decreased to a greater extent during specific inhibition of NO synthase by N super(G)-monomethyl-L-arginine. Thus, in this small cohort of subjects, short-term treatment with lopinavir-ritonavir does not appear to directly promote endothelial cell dysfunction.
To differentiate between the effects that antiretroviral drugs have on the endothelium and the secondary effects that they have on immune function, viral load, and dyslipidemia, 6 non-human immunodeficiency virus-infected human subjects were treated with lopinavir-ritonavir for 1 month and, on the basis of forearm blood flow, the treatment's effects on endothelial cell function were measured. Surprisingly, after exposure to lopinavir-ritonavir, absolute forearm blood-flow responses to the endothelium-dependent vasodilator, acetylcholine, increased significantly (P=.03), and forearm blood flow decreased to a greater extent during specific inhibition of NO synthase by N(G)-monomethyl-L-arginine. Thus, in this small cohort of subjects, short-term treatment with lopinavir-ritonavir does not appear to directly promote endothelial cell dysfunction.To differentiate between the effects that antiretroviral drugs have on the endothelium and the secondary effects that they have on immune function, viral load, and dyslipidemia, 6 non-human immunodeficiency virus-infected human subjects were treated with lopinavir-ritonavir for 1 month and, on the basis of forearm blood flow, the treatment's effects on endothelial cell function were measured. Surprisingly, after exposure to lopinavir-ritonavir, absolute forearm blood-flow responses to the endothelium-dependent vasodilator, acetylcholine, increased significantly (P=.03), and forearm blood flow decreased to a greater extent during specific inhibition of NO synthase by N(G)-monomethyl-L-arginine. Thus, in this small cohort of subjects, short-term treatment with lopinavir-ritonavir does not appear to directly promote endothelial cell dysfunction.
To differentiate between the effects that antiretroviral drugs have on the endothelium and the secondary effects that they have on immune function, viral load, and dyslipidemia, 6 non-human immunodeficiency virus-infected human subjects were treated with lopinavir-ritonavir for 1 month and, on the basis of forearm blood flow, the treatment's effects on endothelial cell function were measured. Surprisingly, after exposure to lopinavir-ritonavir, absolute forearm blood-flow responses to the endothelium-dependent vasodilator, acetylcholine, increased significantly (P=.03), and forearm blood flow decreased to a greater extent during specific inhibition of NO synthase by NG-monomethyl-l-arginine. Thus, in this small cohort of subjects, short-term treatment with lopinavir-ritonavir does not appear to directly promote endothelial cell dysfunction
Author Blackwelder, William C.
Sklar, Peter A.
Dejam, André
Kovacs, Joseph A.
Gladwin, Mark T.
Voell, Jocelyn
Grubb, Jessica R.
Masur, Henry
Cannon, Richard O.
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Keywords Infection
Antiretroviral agent
Endothelial cell
Microbiology
Ritonavir
Lopinavir
Antiviral
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SubjectTerms Acetylcholine - administration & dosage
Acetylcholine - pharmacology
Adult
Antiretrovirals
Atherosclerosis
Biological and medical sciences
Blood
Blood flow
Endothelial cells
Endothelial Cells - drug effects
Endothelial Cells - physiology
Endothelium, Vascular - drug effects
Endothelium, Vascular - physiology
Enzyme Inhibitors - administration & dosage
Enzyme Inhibitors - pharmacology
Female
Forearm
Forearm - blood supply
Fundamental and applied biological sciences. Psychology
HIV Protease Inhibitors - administration & dosage
HIV Protease Inhibitors - adverse effects
HIV/AIDS
Humans
Infectious diseases
Lopinavir
Male
Medical sciences
Microbiology
omega-N-Methylarginine - administration & dosage
omega-N-Methylarginine - pharmacology
Percentage change
Protease inhibitors
Pyrimidinones - administration & dosage
Pyrimidinones - adverse effects
Regional Blood Flow
Ritonavir - administration & dosage
Ritonavir - adverse effects
Sodium
Title Lopinavir-Ritonavir: Effects on Endothelial Cell Function in Healthy Subjects
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