The role of 'paraoxonase-1 activity' as an antioxidant in coronary artery diseases

A majority of the Coronary Artery Diseases (CAD) result from complications of atherosclerosis. There is a growing body of evidence which has revealed that the reduced activity of the HDL-associated enzyme, paraoxonase1 (PON1), is predictive of vascular disease in humans, which include the results fr...

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Published in:Journal of clinical and diagnostic research 2013-07, Vol.7 (7), p.1284-1287
Main Authors: Shekhanawar, Maharudra, Shekhanawar, Sarala M, Krisnaswamy, D, Indumati, V, Satishkumar, D, Vijay, V, Rajeshwari, T, Amareshwar, M
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antioxidants
coronary artery disease
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oxidative stress
paraoxonase1
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container_title Journal of clinical and diagnostic research
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creator Shekhanawar, Maharudra
Shekhanawar, Sarala M
Krisnaswamy, D
Indumati, V
Satishkumar, D
Vijay, V
Rajeshwari, T
Amareshwar, M
description A majority of the Coronary Artery Diseases (CAD) result from complications of atherosclerosis. There is a growing body of evidence which has revealed that the reduced activity of the HDL-associated enzyme, paraoxonase1 (PON1), is predictive of vascular disease in humans, which include the results from prospective studies. The mechanisms by which PON1 activity influences risk of vascular disease continue to be evaluated. It is generally thought that PON1 contributes to the antioxidant, and thus, to the antiatherogenic properties of High Density Lipoproteins (HDL). Depleted antioxidant levels could be a risk factor for coronary artery disease. Hence, this study was done to evaluate PON1, as antioxidant, in CAD patients. This study was done to determine serum levels of PON1 activity in 50 controls and in 60 clinically and ECG proven CAD cases and to compare PON1 activity with total cholesterol and triglycerides. Serum levels of PON1 activity (p
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There is a growing body of evidence which has revealed that the reduced activity of the HDL-associated enzyme, paraoxonase1 (PON1), is predictive of vascular disease in humans, which include the results from prospective studies. The mechanisms by which PON1 activity influences risk of vascular disease continue to be evaluated. It is generally thought that PON1 contributes to the antioxidant, and thus, to the antiatherogenic properties of High Density Lipoproteins (HDL). Depleted antioxidant levels could be a risk factor for coronary artery disease. Hence, this study was done to evaluate PON1, as antioxidant, in CAD patients. This study was done to determine serum levels of PON1 activity in 50 controls and in 60 clinically and ECG proven CAD cases and to compare PON1 activity with total cholesterol and triglycerides. Serum levels of PON1 activity (p&lt;0.001) were significantly lower in CAD cases than in controls. Serum total cholesterol (p&lt; 0.001) and triglyceride (p&lt; 0.001) levels were significantly higher in CAD cases than in controls. There was a negative correlation between PON 1 activity and total cholesterol and triglycerides. The negative correlation between PON1 activity and total cholesterol was significant (p&lt;0.05). From our present study, we can conclude that PON1 can exert a protective effect on HDL by preventing its oxidative damage. Further, a decreased PON 1 activity may be a risk factor for CAD, which is likely to be explained by derangement of PON 1 activity towards lipid peroxidation. This study suggested that serum antioxidant activity of PON1 was an important factor which provided protection from oxidative stress and lipid peroxidation in CAD. 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coronary artery disease
Original
oxidative stress
paraoxonase1
title The role of 'paraoxonase-1 activity' as an antioxidant in coronary artery diseases
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