Maternal Low-Protein Diet During Nursing Leads to Glucose–Insulin Dyshomeostasis and Pancreatic-Islet Dysfunction by Disrupting Glucocorticoid Responsiveness in Male Rats
2024

Low-Protein Diet in Nursing Mothers Affects Glucose and Insulin in Male Rats

Sample size: 48 publication 10 minutes Evidence: high

Author Information

Author(s): de Freitas Mathias Paulo Cezar, Dantas Rodrigues Aline Milena, Lisboa Patrícia Cristina, Miranda Rosiane Aparecida, Malta Ananda, Ribeiro Tatiane Aparecida, Barella Luiz Felipe, Dias Ginislene, Lima Thalyne Aparecida Leite, Gomes Rodrigo Mello, de Moura Egberto Gaspar, de Oliveira Júlio Cezar

Primary Institution: State University of Maringa, Federal University of Mato Grosso, State University of Rio de Janeiro, Federal University of Goiás

Hypothesis

Do male rats whose mothers are on a low-protein diet during nursing have impaired glucose-insulin homeostasis and pancreatic islet function?

Conclusion

Male rats whose mothers were on a low-protein diet during nursing show glucose-insulin dyshomeostasis and pancreatic islet dysfunction.

Supporting Evidence

  • LP rats showed reduced body weight and adiposity index compared to NP rats.
  • Chronic dexamethasone treatment induced hyperglycemia and hyperinsulinemia in NP rats.
  • LP rats exhibited impaired insulin secretion under metabolic stress.

Takeaway

If a mother rat doesn't eat enough protein while feeding her babies, those baby rats might have trouble with sugar and insulin when they grow up.

Methodology

The study involved feeding lactating dams a low-protein or normal-protein diet and assessing the metabolic responses of their male offspring at 90 days of age.

Potential Biases

Potential bias due to the specific focus on male rats and the exclusion of female rats.

Limitations

The study did not measure ACTH receptors in the adrenal cortex.

Participant Demographics

Male Wistar rats from mothers fed either a low-protein or normal-protein diet during lactation.

Statistical Information

P-Value

p<0.001

Statistical Significance

p<0.001

Digital Object Identifier (DOI)

10.3390/biology13121036

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