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Paraoxonase 1 (PON1) and its relationship with lipid profile and lipoperoxidation in an adult population from the city of Cerro de Pasco, 4330 m

Authors: Carranza A, Elizabeth; Zúñiga C, Haydée; Peña S, Carmen; Huarcaya F, Miguel; Quispe T, Juan; Nina C, Edison;

Paraoxonase 1 (PON1) and its relationship with lipid profile and lipoperoxidation in an adult population from the city of Cerro de Pasco, 4330 m

Abstract

Con el objetivo de analizar la actividad sérica de la enzima paraoxonasa, su distribución fenotípica, y su relación con el perfil lipídico y con el estrés oxidativo, en una población adulta mayor de la ciudad de Cerro de Pasco (4330 m), se estudió el suero sanguíneo de 30 hombres mayores de 60 años y 40 mujeres postmenopáusicas. Se utilizó paraoxon como sustrato para medir las actividades tanto de la paraoxonasa basal como de la estimulada con NaCl 1 M y fenilacetato para medir la actividad arilesterasa. El perfil lipídico se midió con kits comerciales, las apolipoproteinas A-1 y B por métodos turbidimétricos, y el malondialdehido con ácido tiobarbitúrico. Los valores medios del perfil lipídico, APO B y malondialdehido (expresado como TBARS) entre hombres y mujeres no presentan diferencias significativas. La APO A-1 es significativamente mayor en las mujeres que en los hombres. Las actividades de la PON 1 basal y estimulada tampoco difieren significativamente entre los dos grupos. Se encontró diferencia significativa en la actividad arilesterasa en las mujeres con respecto a los hombres. No se encontró correlación entre la actividad paraoxonasa y los otros parámetros estudiados. La actividad arilesterasa correlaciona positivamente con APO A-1 (p<0,05), pero no con HDL-colesterol, APO B y TBARS. En conclusión, los valores del perfil lipídico, APO A-1, APOB y TBARS demostrarían que las personas de la tercera edad que viven en las grandes alturas podrían estar mejor protegidas contra las enfermedades cardiovasculares.

In order to analyze the activity of the serum enzyme paraoxonase, phenotype distribution and its relationship with lipid profile and oxidative stress, in an elderly population from Cerro de Pasco city(4330 m), were studied blood serum of 30 men aged 60 years and 40 postmenopausal women. Paraoxon were used as substrate for measuring the activity of paraoxonase basal and stimulated with NaCl 1 M and measuring phenylacetate arylesterase activity. The lipid profile was measured using commercial kits, apolipoproteins A-1 and B by turbidimetric methods and malondialdehyde with thiobarbituric acid. The mean values of lipid profile, APO B, and malondialdehyde (expressed as TBARS) between men and women do not differ significantly. APO A-1 is significantly higher in women than in men. The activities of the PON 1 basal and stimulated not differ significantly between the two groups. There was significant difference in arylesterase activity in women compared to men. No correlation was found between paraoxonase activity and other parameters studied. Arylesterase activity correlates positively with APO A-1 (p<0,05), but not with HDL-cholesterol, APO B and TBARS. In conclusion, the lipid profile, APO A-1, APOB and TBARS demonstrate that elderly people living at high altitudes could be better protected against cardiovascular disease.

Keywords

altitud., lipid profile, paraoxonasa, estrés oxidativo, high altitude, Perfil lipídico, oxidative stress, paraoxonase

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citations
This is an alternative to the "Influence" indicator, which also reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Citations provided by BIP!
popularity
This indicator reflects the "current" impact/attention (the "hype") of an article in the research community at large, based on the underlying citation network.
BIP!Popularity provided by BIP!
influence
This indicator reflects the overall/total impact of an article in the research community at large, based on the underlying citation network (diachronically).
BIP!Influence provided by BIP!
impulse
This indicator reflects the initial momentum of an article directly after its publication, based on the underlying citation network.
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