MATERNAL PROTEIN MALNUTRITION DURING LACTATION PREDISPOSES TO A METABOLIC SYNDROME PHENOTYPE IN MALE WISTAR RATS

  • Willian do Nascimento de Souza Rodrigues
  • Maria Natalia Chimirri Peres
  • Scarlett Rodrigues Raposo
  • Maryana Debossan Fernandes
  • Marcos Vinícius Martins
  • Leticia Ferreira Barbosa
  • Filipe Lima dos Santos
  • Lucas Paulo Jacinto Saavedra
  • Veridiana Mota Moreira
  • Paulo Cezar de Freitas Mathias

Resumo

Maternal nutritional insults during lactation can modulate the offspring phenotype associated
with the risk of non-communicable diseases at different stages of ontogenetic development.
The aim of this research was to analyze biometric and biochemical parameters of male Wistar
rats, born to dams fed a low-protein diet in the first two-thirds of lactation. Therefore, the
mothers received ad libitum a normal (NP, 23%) or low-protein (LP, 4%) diet, originating
two experimental groups that were evaluated at 14 days old (NP-14 and LP-14). The results
showed that the LP-14 offspring male rats had lower body weight (p<0.0001), reduced liver
(p<0.0001) and higher brown fat deposits (p<0.0001), compared to the equivalent control.
They also exhibited hyperglycemia (p<0.05), hypercholesterolemia (p<0.0001), and increased
serum β-hydroxybutyrate (p<0.0001), contrasting with reduced triglycerides (p<0.05) levels.
We conclude that maternal exposure to a low-protein diet during lactation was able to
program 14-day-old male neonates to develop a metabolic syndrome phenotype, probably due
to restriction of body and visceral growth in these animals.

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Referências

1st International Symposium on DOHaD and the Pandemic: Lessons from Covid-19 (ISDP)
Publicado
2023-05-10
Como Citar
1.
do Nascimento de Souza Rodrigues W, Natalia Chimirri Peres M, Rodrigues Raposo S, Debossan Fernandes M, Vinícius Martins M, Ferreira Barbosa L, Lima dos Santos F, Paulo Jacinto Saavedra L, Mota Moreira V, Cezar de Freitas Mathias P. MATERNAL PROTEIN MALNUTRITION DURING LACTATION PREDISPOSES TO A METABOLIC SYNDROME PHENOTYPE IN MALE WISTAR RATS. arqmudi [Internet]. 10º de maio de 2023 [citado 6º de setembro de 2025];27(ESPECIAL1). Disponível em: https://periodicos.uem.br/ojs/index.php/ArqMudi/article/view/68185
Seção
3. Environmental and dietary influences on the onset of noncommunicable diseases