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Inicio Endocrinología y Nutrición Relación de la hipertrigliceridemia posprandial con la resistencia a la insulin...
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Vol. 53. Núm. 4.
Páginas 237-241 (abril 2006)
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Vol. 53. Núm. 4.
Páginas 237-241 (abril 2006)
Originales
Acceso a texto completo
Relación de la hipertrigliceridemia posprandial con la resistencia a la insulina en pacientes con síndrome metabólico
Association between postprandial hypertriglyceridemia and insulin resistance in patients with the metabolic syndrome
Visitas
8734
F. Cardonaa,b, M. Gonzalo-Marínc, F.J. Tinahonesa,
Autor para correspondencia
fjtinahones@terra.es

Correspondencia: Dr. F.J. Tinahones. Pabellón 5 Sótano. Laboratorio de Investigación. Hospital Civil. Pza. Hospital Civil, s/n. 29009 Málaga. España.
a Servicio de Endocrinología y Nutrición. Hospital Clínico Virgen de la Victoria. Málaga. España
b Fundación IMABIS. Málaga. España
c Servicio de Endocrinología y Nutrición. Hospital Regional Universitario Carlos Haya. Málaga. España
Este artículo ha recibido
Información del artículo
Introducción

Evidencias indican que la hipertrigliceridemia posprandial está relacionada con la resistencia a la insulina. En este estudio se evalúa la relación de la hipertrigliceridemia posprandial con componentes del síndrome metabólico en pacientes no diabéticos con síndrome metabólico.

Pacientes y método

Se estudió a 35 sujetos no diabéticos con síndrome metabólico. Se analizaron la glucosa, el colesterol, los triglicéridos, la creatinina, el colesterol ligado a lipoproteínas de alta densidad, el colesterol ligado a lipoproteínas de baja densidad y el ácido úrico plasmático; se determinó el índice de masa corporal, el índice cintura-cadera, además del aclaramiento de ácido úrico y la fracción excretora de ácido úrico en muestras de orina de 24 h. Se determinaron los triglicéridos posprandiales a las 4 h tras la sobrecarga oral grasa (55 g de lípidos). La resistencia a la insulina se calculó usando el Homeostasis Model Assessment (HOMA).

Resultados

Los triglicéridos posprandiales se correlacionaron con el ácido úrico (r=0,49, p<0,001), el índice de resistencia (r=0,54, p<0,001) y el de secreción a la insulina (r=0,49, p<0,001). El análisis de regression múltiple indicó que los triglicéridos posprandiales son la variable que mejor explica la varianza de la resistencia y la secreción de la insulina (el 32% de la variabilidad de la varianza), desplazando a los otros componentes del síndrome metabólico. El índice de masa corporal y los triglicéridos posprandiales explicaron el 45% de la varianza del HOMA de la resistencia a la insulina.

Conclusión

Se demuestra que los triglicéridos posprandiales explican mejor la variabilidad de los índices HOMA que otros componentes del síndrome metabólico en pacientes con esta enfermedad.

Palabras clave:
Hipertrigliceridemia posprandial
Resistencia a la insulina
Síndrome metabólico
Background

There is evidence indicating that postprandial hypertriglyceridemia might be related to insulin resistance. We studied the association between postprandial hypertriglyceridemia and factors involved in metabolic syndrome in a group of non-diabetic patients with this syndrome.

Patients and method

Thirty-five nondiabetic persons with metabolic syndrome were studied. Plasma levels of glucose, cholesterol, triglycerides, creatinine, high density lipoprotein (HDL)-cholesterol, low-density lipoprotein (LDL)-cholesterol, and uric acid. We also measured height and weight, waist-to-hip ratio, uric acid clearance and its excretion fraction in 24 hour urine samples. Postprandial triglycerides were determined 4 hours after fat overload (55 g of lipids). Insulin resistance was calculated using the homeostasis model assessment (HOMA).

Results

Postprandial triglycerides were correlated with uric acid (r=0.49, p<0.001), insulin resistance index (r=0.54, p<0.001) and insulin secretion index (r=0.49, p<0.001). Multiple regression analysis showed that postprandial triglycerides were the variable that best accounted for the variance in insulin resistance and insulin secretion (32% of the variability in the variance), displacing the other components of the metabolic syndrome. Body mass index and postprandial triglycerides accounted for 45% of the variance in insulin resistance measured by the HOMA.

Conclusions

This study demonstrates that postprandial triglycerides play a greater role in variability in the HOMA indices than other components of the metabolic syndrome in patients with this syndrome.

Key words:
Postprandial hypertriglyceridemia
Insulin resistance
Metabolic syndrome
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Este estudio fue financiado con una beca predoctoral Fundación Hospital Carlos Haya, con la Red de Centros de Metabolismo y Nutrición (RCMN C03/08) del Instituto de Salud Carlos III. Madrid. España.

Copyright © 2006. Sociedad Española de Endocrinología y Nutrición
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