Evaluación de los niveles de lípidos y del estado de insulinorresistencia en pre- y postmenopáusicas
Evaluation of lipid levels and insulin resistance in pre- and postmenopausal women
Avaliação dos níveis de lipídios e do estado de resistência à insulina em pré- e pós-menopausa
Acta bioquím. clín. latinoam; 50 (3), 2016
Publication year: 2016
El objetivo del trabajo consistió en evaluar la relación entre los niveles de lípidos y parámetros que definen el estado de insulinorresistencia con la edad, el estado menopáusico (EM) y el índice de masa corporal (IMC) en la pre- y postmenopausia.
En este estudio de corte transversal se seleccionaron 89 mujeres:
42 premenopáusicas (Pre) y 47 postmenopáusicas (Post).Se midieron:
FSH, LH, estradiol e insulina por MEIA, colesterol total (CT), triglicéridos (TG), colesterol de lipoproteínas de baja densidad (C-LDL), colesterol de lipoproteínas de alta densidad (C-HDL) y glucosa por métodos químicos convencionales. El colesterol de LDL pequeñas y densas (C-LDLpyd) se obtuvo por cálculo. Las pacientes Post mostraron niveles más elevados de CT (p<0,0001), C-LDL (p<0,0001), C-HDL (p=0,0283), TG (p=0,0014), C-LDLpyd (p=0,0001), CT/C-HDL (p=0,0016) y glucosa (p=0,0048) que las Pre. No se hallaron diferencias significativas en los valores de insulina ni del índice TG/C-HDL. El análisis de regresión múltiple mostró que los valores de CT, C-LDL y C-HDL se relacionaron lineal y positivamente con la edad. Los niveles de C-LDL medido, TG, CT/C-HDL, C-LDLpyd, glucosa, insulina y TG/C-HDL se asociaron positivamente con IMC. C-HDL se relacionó negativamente con IMC. Sólo el C-LDLpyd presentó linealidad positiva con el EM.
The purpose of this study was to evaluate the relationship between lipid levels and insulin resistance parameters with age, menopausal status (MS) and body mass index (BMI) in pre- and postmenopausal women. This cross-sectional study included 89 women: 42 premenopausal (Pre) and 47 postmenopausal (Post). FSH, LH, estradiol and insulin were measured by MEIA. Total-cholesterol (TC), triglycerides (TG), high density lipoprotein cholesterol (HDL-C), low density lipoprotein cholesterol (LDL-C), and glucose were measured by conventional clinical chemistry methods. Small and dense LDL-C (sdLDL-C) was estimated by calculation. Post women showed higher values of TC (p<0.0001), LDL-C (p<0.0001), HDL-C (p=0.0283), TG (p=0.0014), sdLDL-C (p=0.0001), TC/HDL-C ratio (p=0.0016) and glucose (p=0.0048) than Pre. Insuline and TG/HDL-C ratio were not different between groups. Multiple regression analysis showed TC, LDL-C and HDL-C levels to be linearly and positively associated to age. Measured LDL-C, TG, TC/HDL-C ratio, sdLDL-C, glucose, insulin and TG/HDL-C ratio showed linear and positive relationship with BMI. HDL-C was negatively associated to IMC. Only sdLDL-C concentrations were associated positively to MS.
O objetivo deste trabalho é avaliar a relação entre os níveis de lipídios e parâmetros que definem o estado de resistência à insulina com a idade, estado menopausal (EM) e índice de massa corporal (IMC) na pré- e pós-menopausa. Neste estudo de corte transversal, foram selecionadas 89 mulheres: 42 pré-menopausa (Pré) e 47 pós-menopausa (Pós).