Genetic polymorphism of the E apolipoprotein in school age children: comparison with levels of plasma lipids and apolipoproteins

Ney Callas, Elpidia Poveda, César Baracaldo, Patricia Hernández, Carlina Castillo, Martha Guerra, .

Keywords: polymorphism, genetic, apolipoproteins, cholesterol, triglycerides, child, adolescent

Abstract

Introduction. Research in laboratories around the world has documented the contribution of the E apolipoprotein alleles to structural variations of lipids and apolipoproteins.
Objective. The gene frequencies of the E apolipoprotein alleles were compared with the lipid and apolipoprotein levels in school age children.
Materials and methods. Six hundred and ninety one 5 to 15 years old school age children from the Colombian departments of Cundinamarca, Boyacá, Meta, Santander and Norte de Santander, were evaluated.The genotypes of the E apolipoprotein were identified by polymerase chain reaction-restriction fragment length polymorphism. Plasma levels for the following 5 lipids and lipoproteins were assayed: total cholesterol, HDL (high density lipoprotein) cholesterol, LDL (low density lipoprotein) cholesterol, triglycerides, VLDL (very low density lipoprotein) cholesterol, A-I apolipoprotein and B-100 apolipoprotein.
Results. Alleles e2, e3 and e4 were found in frequencies of 0.04, 0.86 and 0.08, respectively. The E4 group (E4/3-E4/4), in contrast with the E2 group (E3/2-E2/2), presented highest plasma concentrations of total cholesterol, LDL cholesterol and B-100 apolipoprotein (p=0.014, 0.001 and 0.000, respectively). When the E3/3 group was compared with E2, the same result was obtained (p=0.015, 0.002 and 0.002, respectively). The influence of the E apolipoprotein polymorphism appeared greater in female children than male.
Conclusions. The e4 allele was associated with higher levels of total cholesterol, LDL cholesterol and B-100 apolipoprotein and indicates the necessity of additional research into the interactions
between polymorphism E apolipoprotein and other genes, life styles, risk factors and potential contribution to cardiovascular diseases.

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  • Ney Callas Grupo de Nutrición, Subdirección de Investigación, Instituto Nacional de Salud, Bogotá, D.C., Colombia
  • Elpidia Poveda Grupo de Nutrición, Subdirección de Investigación, Instituto Nacional de Salud, Bogotá, D.C., Colombia
  • César Baracaldo Grupo de Nutrición, Subdirección de Investigación, Instituto Nacional de Salud, Bogotá, D.C., Colombia
  • Patricia Hernández Grupo Clínico-Genético-Molecular en Dislipoproteinemias, Departamento de Nutrición y Bioquímica, Facultad de Ciencias, Pontificia Universidad Javeriana, Bogotá, D.C., Colombia
  • Carlina Castillo Grupo de Nutrición, Subdirección de Investigación, Instituto Nacional de Salud, Bogotá, D.C., Colombia
  • Martha Guerra Grupo Clínico-Genético-Molecular en Dislipoproteinemias, Departamento de Nutrición y Bioquímica, Facultad de Ciencias, Pontificia Universidad Javeriana, Bogotá, D.C., Colombia

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How to Cite
1.
Callas N, Poveda E, Baracaldo C, Hernández P, Castillo C, Guerra M. Genetic polymorphism of the E apolipoprotein in school age children: comparison with levels of plasma lipids and apolipoproteins. biomedica [Internet]. 2007 Dec. 1 [cited 2024 May 18];27(4):526-36. Available from: https://revistabiomedica.org/index.php/biomedica/article/view/171

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Published
2007-12-01
Section
Original articles

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