Función endotelial y lipemia postprandial en adultos normolipídicos: Efecto del estado nutricional


Autoria(s): Díaz Vidal, Diana Milena
Contribuinte(s)

Ramírez-Vélez, Robinson

Correa Bautista, Jorge Enrique

Data(s)

22/04/2016

31/12/1969

Resumo

El objetivo del presente estudio fue cuantificar la contribución del sobrepeso en la magnitud de la lipemia posprandial en sujetos normolipídicos. Se incluyeron 33 adultos normolipídicos en dos grupos (n=20, sobrepeso y (n=13 eutróficos, 66% hombres, edad media 31,2±7,6 años). Se midió la vasodilatación mediada por flujo (VMF), la velocidad de onda de pulso (VOP), el perfil lipídico, el cociente Log TG/c-HDL, la glucosa y presión arterial tras una ingesta estándar con alto contenido de grasa (79% Kcal/grasa). Se calculó, el Z-score de riesgo cardiovascular a partir de la suma de los residuos tipificados (Z) de las variables de riesgo cardiovascular. El estado de lipemia posprandial se midió en ayuno (0 min) y a los (60, 120, 180, y 240 min) posprandiales. El valor basal de la VMF y la VOP fue de 6,9±5,9% y 7.0±0.8 m/s, respectivamente. Se identificó que la lipemia posprandial reducía la WMF en 19,2% a los 60 min (5,9±1,5%) y a los 240 min (3,7±1,2%) (p<0,04), respectivamente. Este hallazgo se acompañó con un aumento en la VOP (p<0,05). Al dividir los sujetos en dos grupos según el IMC, los participantes en sobrepeso muestran cifras más elevadas en el Z-score de riesgo cardiovascular, la VOP, el Log TG/c-HDL y el Δ-VOP, (p<0,001). En conclusión los sujetos clasificados en sobrepeso muestran un perfil cardiometabolico asociado con un mayor riesgo cardiovascular.

The objective of the present study was to quantify the contribution of overweigth to the magnitude of postprandial lipemia (LP) in 33 normolipidemic subjects (n=20, overweight, n=13, eutrophic, 66% male, mean age 31.2±7.6 years). Fasting (0 min) and postprandial changes (60, 120, 180, and 240min) in vascular endothelial function using flow-mediated dilatation (FMD) and brachial pulse wave velocity (bPWV), lipid profile, Log TG/HDL-cholesterol, blood glucose and blood pressure who underwent a standardized breakfast with a high-fat (79% Kcal/fat) content. A CVD risk score was computed as a measure of the overall CVD risk profile. Baseline FMD and bPWV were 6.9±5.9% and 7.0±0.8 m/s, respectively. LP reduced FMD in 19.2% at 60min (5,9±1,5%) and 240min (3.7±1.2%), p<0.04 respectively. This finding was associated to an increased in bPWV (p<0.05). Basal CVD risk score and bPWV were higher in overweight (p<0.05). The total increase (Δ-Log TG/HDL-cholesterol and Δ-bPWV), corresponding to the difference between the maximum and the basal was higer in overweight (20.2±30.5 vs. 58.1±21.4, p<0.001) and (6.4±0.2 m/s vs. 7.0±0.1 m/s, p<0.001), respectively. In conclusión, the behavior of LP state is different in eutrophic and overweight normolipidemic subjects.

Formato

application/pdf

Identificador

http://repository.urosario.edu.co/handle/10336/12242

Idioma(s)

spa

Publicador

Facultad de medicina

Direitos

info:eu-repo/semantics/embargoedAccess

Fonte

instname:Universidad del Rosario

reponame:Repositorio Institucional EdocUR

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TMAF

Palavras-Chave #616.12 #Endotelinas #Lipoproteína Lipasa #Lípidos #Enfermedades cardiovasculares #Postprandial Lipemia #Endothelial function #Cardiovascular disease #Obesity
Tipo

info:eu-repo/semantics/masterThesis

info:eu-repo/semantics/submittedVersion