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Nutrición Hospitalaria

versión On-line ISSN 1699-5198versión impresa ISSN 0212-1611

Resumen

PEREZ, Gabriela dos Santos et al. Maternal and post-weaning exposure to a high fat diet promotes visceral obesity and hepatic steatosis in adult rats. Nutr. Hosp. [online]. 2015, vol.32, n.4, pp.1653-1658. ISSN 1699-5198.  http://dx.doi.org/10.3305/nh.2015.32.4.9607.

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.

Palabras clave : Critical period of development; High fat diet; Liver; Rats.

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