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Erschienen in: European Journal of Nutrition 2/2018

17.10.2016 | Original Contribution

Methylglyoxal treatment in lactating mothers leads to type 2 diabetes phenotype in male rat offspring at adulthood

verfasst von: Flávio Andrade Francisco, Luiz Felipe Barella, Sandra da Silva Silveira, Lucas Paulo Jacinto Saavedra, Kelly Valério Prates, Vander Silva Alves, Claudinéia Conationi da Silva Franco, Rosiane Aparecida Miranda, Tatiane Aparecida Ribeiro, Laize Peron Tófolo, Ananda Malta, Elaine Vieira, Kesia Palma-Rigo, Audrei Pavanello, Isabela Peixoto Martins, Veridiana Mota Moreira, Júlio Cezar de Oliveira, Paulo Cezar de Freitas Mathias, Rodrigo Mello Gomes

Erschienen in: European Journal of Nutrition | Ausgabe 2/2018

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Abstract

Purpose

Environmental and nutritional disorders during perinatal period cause metabolic dysfunction in the progeny and impair human health. Advanced glycation end products (AGEs) are primarily produced during metabolism of excess blood glucose, which is observed in diabetes. Methylglyoxal (MG) is a precursor for the generation of endogenous AGEs, which disturbs the metabolism. This work aimed to investigate whether the maternal MG treatment during lactation programs the progeny to metabolic dysfunction later in life.

Methods

Female Wistar rats were divided into two groups: control group (C) treated with saline and MG group treated with MG (60 mg/kg/day) by gavage throughout the lactation period. Both mothers and offspring were fed a standard chow. At weaning, breast milk composition was analyzed and mothers euthanized for blood and tissue sample collections. At 90 days of age, offspring were submitted to glucose tolerance test (ivGTT) and euthanized for blood and tissue samples collection.

Results

MG mothers showed increase in glucose and fructosamine levels; however, they showed low insulin levels and failure in β-cell function (p < 0.05). MG mothers also showed dyslipidemia (p < 0.05). Moreover, breast milk had elevated levels of glucose, triglycerides, cholesterol and fructosamine and low insulin (p < 0.05). Interestingly, MG offspring had increased body weight and adipose tissue at adulthood, and they also showed glucose intolerance and failure in β-cell function (p < 0.05). Besides, MG offspring showed dyslipidemia (p < 0.05) increasing cardiovascular diseases risk.

Conclusions

Maternal MG treatment negatively affects the male rat offspring, leading to type 2 diabetes and dyslipidemia in later life, possibly by changes in breast milk composition.
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Metadaten
Titel
Methylglyoxal treatment in lactating mothers leads to type 2 diabetes phenotype in male rat offspring at adulthood
verfasst von
Flávio Andrade Francisco
Luiz Felipe Barella
Sandra da Silva Silveira
Lucas Paulo Jacinto Saavedra
Kelly Valério Prates
Vander Silva Alves
Claudinéia Conationi da Silva Franco
Rosiane Aparecida Miranda
Tatiane Aparecida Ribeiro
Laize Peron Tófolo
Ananda Malta
Elaine Vieira
Kesia Palma-Rigo
Audrei Pavanello
Isabela Peixoto Martins
Veridiana Mota Moreira
Júlio Cezar de Oliveira
Paulo Cezar de Freitas Mathias
Rodrigo Mello Gomes
Publikationsdatum
17.10.2016
Verlag
Springer Berlin Heidelberg
Erschienen in
European Journal of Nutrition / Ausgabe 2/2018
Print ISSN: 1436-6207
Elektronische ISSN: 1436-6215
DOI
https://doi.org/10.1007/s00394-016-1330-x

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