Early life stress interacts with the diet deficiency of omega-3 fatty acids during the life course increasing the metabolic vulnerability in adult rats.

Early stress can cause metabolic disorders in adulthood. Omega-3 polyunsaturated fatty acids (n-3 PUFAs) deficiency has also been linked to the development of metabolic disorders. The aim of this study was to assess whether an early stressful event such as maternal separation interacts with the nutr...

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Autores principales: Juliana R Bernardi, Charles F Ferreira, Gabrielle Senter, Rachel Krolow, Bianca W de Aguiar, André K Portella, Márcia Kauer-Sant'anna, Flávio Kapczinski, Carla Dalmaz, Marcelo Z Goldani, Patrícia P Silveira
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Publicado: Public Library of Science (PLoS) 2013
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spelling oai:doaj.org-article:617b00850ae44d71a501ce7019a0be3f2021-11-18T07:48:58ZEarly life stress interacts with the diet deficiency of omega-3 fatty acids during the life course increasing the metabolic vulnerability in adult rats.1932-620310.1371/journal.pone.0062031https://doaj.org/article/617b00850ae44d71a501ce7019a0be3f2013-01-01T00:00:00Zhttps://www.ncbi.nlm.nih.gov/pmc/articles/pmid/23614006/?tool=EBIhttps://doaj.org/toc/1932-6203Early stress can cause metabolic disorders in adulthood. Omega-3 polyunsaturated fatty acids (n-3 PUFAs) deficiency has also been linked to the development of metabolic disorders. The aim of this study was to assess whether an early stressful event such as maternal separation interacts with the nutritional availability of n-3 PUFAs during the life course on metabolic aspects. Litters were randomized into: maternal separated (MS) and non-handled (NH). The MS group was removed from their dam for 3 hours per day and put in an incubator at 32 °C on days 1° to 10° postnatal (PND). On PND 35, males were subdivided into diets that were adequate or deficient in n-3 PUFAs, and this intervention was applied during the subsequent 15 weeks. Animal's body weight and food consumption were measured weekly, and at the end of the treatment tissues were collected. MS was associated with increased food intake (p = 0.047) and weight gain (p = 0.012), but no differences were found in the NPY hypothalamic content between the groups. MS rats had also increased deposition of abdominal fat (p<0.001) and plasma triglycerides (p = 0.018) when compared to the NH group. Interactions between early life stress and n-3 PUFAs deficiency were found in plasma insulin (p = 0.033), HOMA index (p = 0.049), leptin (p = 0.010) and liver PEPCK expression (p = 0.050), in which the metabolic vulnerability in the MS group was aggravated by the n-3 PUFAs deficient diet exposure. This was associated with specific alterations in the peripheral fatty acid profile. Variations in the neonatal environment interact with nutritional aspects during the life course, such as n-3 PUFAs diet content, and persistently alter the metabolic vulnerability in adulthood.Juliana R BernardiCharles F FerreiraGabrielle SenterRachel KrolowBianca W de AguiarAndré K PortellaMárcia Kauer-Sant'annaFlávio KapczinskiCarla DalmazMarcelo Z GoldaniPatrícia P SilveiraPublic Library of Science (PLoS)articleMedicineRScienceQENPLoS ONE, Vol 8, Iss 4, p e62031 (2013)
institution DOAJ
collection DOAJ
language EN
topic Medicine
R
Science
Q
spellingShingle Medicine
R
Science
Q
Juliana R Bernardi
Charles F Ferreira
Gabrielle Senter
Rachel Krolow
Bianca W de Aguiar
André K Portella
Márcia Kauer-Sant'anna
Flávio Kapczinski
Carla Dalmaz
Marcelo Z Goldani
Patrícia P Silveira
Early life stress interacts with the diet deficiency of omega-3 fatty acids during the life course increasing the metabolic vulnerability in adult rats.
description Early stress can cause metabolic disorders in adulthood. Omega-3 polyunsaturated fatty acids (n-3 PUFAs) deficiency has also been linked to the development of metabolic disorders. The aim of this study was to assess whether an early stressful event such as maternal separation interacts with the nutritional availability of n-3 PUFAs during the life course on metabolic aspects. Litters were randomized into: maternal separated (MS) and non-handled (NH). The MS group was removed from their dam for 3 hours per day and put in an incubator at 32 °C on days 1° to 10° postnatal (PND). On PND 35, males were subdivided into diets that were adequate or deficient in n-3 PUFAs, and this intervention was applied during the subsequent 15 weeks. Animal's body weight and food consumption were measured weekly, and at the end of the treatment tissues were collected. MS was associated with increased food intake (p = 0.047) and weight gain (p = 0.012), but no differences were found in the NPY hypothalamic content between the groups. MS rats had also increased deposition of abdominal fat (p<0.001) and plasma triglycerides (p = 0.018) when compared to the NH group. Interactions between early life stress and n-3 PUFAs deficiency were found in plasma insulin (p = 0.033), HOMA index (p = 0.049), leptin (p = 0.010) and liver PEPCK expression (p = 0.050), in which the metabolic vulnerability in the MS group was aggravated by the n-3 PUFAs deficient diet exposure. This was associated with specific alterations in the peripheral fatty acid profile. Variations in the neonatal environment interact with nutritional aspects during the life course, such as n-3 PUFAs diet content, and persistently alter the metabolic vulnerability in adulthood.
format article
author Juliana R Bernardi
Charles F Ferreira
Gabrielle Senter
Rachel Krolow
Bianca W de Aguiar
André K Portella
Márcia Kauer-Sant'anna
Flávio Kapczinski
Carla Dalmaz
Marcelo Z Goldani
Patrícia P Silveira
author_facet Juliana R Bernardi
Charles F Ferreira
Gabrielle Senter
Rachel Krolow
Bianca W de Aguiar
André K Portella
Márcia Kauer-Sant'anna
Flávio Kapczinski
Carla Dalmaz
Marcelo Z Goldani
Patrícia P Silveira
author_sort Juliana R Bernardi
title Early life stress interacts with the diet deficiency of omega-3 fatty acids during the life course increasing the metabolic vulnerability in adult rats.
title_short Early life stress interacts with the diet deficiency of omega-3 fatty acids during the life course increasing the metabolic vulnerability in adult rats.
title_full Early life stress interacts with the diet deficiency of omega-3 fatty acids during the life course increasing the metabolic vulnerability in adult rats.
title_fullStr Early life stress interacts with the diet deficiency of omega-3 fatty acids during the life course increasing the metabolic vulnerability in adult rats.
title_full_unstemmed Early life stress interacts with the diet deficiency of omega-3 fatty acids during the life course increasing the metabolic vulnerability in adult rats.
title_sort early life stress interacts with the diet deficiency of omega-3 fatty acids during the life course increasing the metabolic vulnerability in adult rats.
publisher Public Library of Science (PLoS)
publishDate 2013
url https://doaj.org/article/617b00850ae44d71a501ce7019a0be3f
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