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Nutrición Hospitalaria

On-line version ISSN 1699-5198Print version ISSN 0212-1611

Nutr. Hosp. vol.32 n.4 Madrid Oct. 2015

https://dx.doi.org/10.3305/nh.2015.32.4.9607 

ORIGINAL / Investigación animal

 

Maternal and post-weaning exposure to a high fat diet promotes visceral obesity and hepatic steatosis in adult rats

La exposición en el periodo perinatal y el postdestete a una dieta alta en grasas promueve la obesidad visceral y la esteatosis hepática en ratas adultas

 

 

Gabriela dos Santos Pérez1, Lucimeire Santana dos Santos1, Gabriele dos Santos Cordeiro1, Gardênia Matos Paraguassú2, Daniel Abensur Athanazio3, Ricardo David Couto4, Tereza Cristina Bonfim de Jesus Deiró1, Raul Manhães de Castro5 and Jairza Maria Barreto-Medeiros1

1Federal University of Bahia, School of Nutrition, Department of Food Science, Graduate Program in Food, Nutrition and Health.
2Federal University of Bahia, Faculty of Dentistry - Department of Integrated Clinic and Propedeutics.
3Federal University of Bahia, School of Medicine.
4Federal University of Bahia, School of Pharmacy.
5Federal University of Pernambuco, Department of Nutrition. Brazil.

 

 


ABSTRACT

Aim: considering the frequent consumption of fatrich diets by women of reproductive age, the aim of the present study was to investigate the effects of maternal consumption of a high-fat diet during the perinatal and/ or post-weaning period on the liver parameters and lipid metabolism of young rats.
Methods: Wistar female rats were fed a high-fat (H) or control (C) diet during pregnancy and lactation. The offspring were allocated to four groups: Control Control (CC, n = 11), offspring fed a control diet after weaning; Control High-fat (CH, n = 10), offspring fed a high-fat diet after weaning; High-fat High-fat (HH, n = 10), offspring of mothers H fed a high-fat diet after weaning; and High-fat Control (HC, n = 9), offspring of mothers H fed with control diet after weaning.
Results and discussion: the food intake did not differ among the groups, however, the relative weight of the adipose tissue was higher in animals from the HC, HH and CH groups (p ≤ 0.005). Liver steatosis was found in the CH and HH animals, which also exhibited hypercholesterolemia (p ≤ 0.05). The levels of the liver enzymes alanine aminotransferase (ALT) and gamma-glutamyl transpeptidase (GGT) were higher in the HH group, and the LDL level was higher in the CH group compared to the CC. The consumption of an obesogenic diet during critical periods of development may contribute to the occurrence of visceral obesity, liver steatosis and hypercholesterolemia in adult rats, even in the absence of changes in dietary intake.

Key words: Critical period of development. High fat diet. Liver. Rats.


RESUMEN

Objetivo: teniendo en cuenta el consumo frecuente de dietas ricas en grasas por las mujeres en edad reproductiva, el objetivo del presente estudio fue investigar los efectos del consumo materno de una dieta alta en grasas durante el periodo perinatal y/o post-destete en el hígado y el metabolismo de los lipidos en ratas jóvenes.
Métodos: ratas hembra Wistar fueron alimentadas durante el embarazo y la lactancia con un alto contenido de grasa (H) o de control (C). La descendencia se asignó a cuatro grupos: Control (CC, n = 11), descendencia alimentada con una dieta de control después del destete; Control de dieta alta en grasa (CH, n = 10), crias alimentadas con una dieta alta en grasas después del destete; Alta en grasas de alta en grasa (HH, n = 10), hijos de madres H alimentados con una dieta alta en grasas después del destete; y Control de alta en grasa (HC, n = 9), hijos de madres H alimentados con dieta de control tras el destete.
Resultados y discusión: la ingesta de alimentos no difirio entre los grupos; sin embargo, el peso relativo del tejido adiposo fue mayor en los animales de los grupos HC, HH y CH (p ≤ 0,005). La esteatosis hepatica se encontro en los CH y HH, que tambien presentaban hipercolesterolemia (p ≤ 0,05). Los niveles de las enzimas hepaticas alanina aminotransferasa (ALT) y gamma-glutamil transpeptidasa (GGT) fueron mayores en el grupo de HH, y el nivel de LDL fue mayor en el grupo CH en comparación con el CC. El consumo de la dieta propicio la obesidad durante los periodos criticos del desarrollo y puede contribuir a la aparición de obesidad visceral, esteatosis hepatica e hipercolesterolemia en ratas adultas, incluso en ausencia de cambios en la ingesta dietética.

Palabras clave: Período crítico del desarrollo. Dieta rica en grasa. Hígado. Ratas.


 

 

http://scielo.isciii.es/pdf/nh/v32n4/33originalinvestigacionanimal03.pdf

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