Hyperproteic diet and pregnancy of rat

Area of Science:

• Reproductive biology
• Nutritional science
• Toxicology

Background:

• Maternal nutrition significantly impacts pregnancy outcomes.
• Understanding the effects of specific dietary components, like high protein, is crucial for maternal and fetal health.

Purpose of the Study:

• To investigate the effects of a purified, high-protein diet (casein 40%, lactalbumin 20%) on pregnant rats.
• To assess morphological, hematological, and reproductive outcomes associated with this diet during different pregnancy stages.

Main Methods:

• Pregnant rats were fed a purified diet enriched with animal protein.
• Morphological examinations of liver, adrenal cortex, heart, and kidney were performed.
• Hematological analysis (glucose, triglycerides, aldosterone, corticosterone) was conducted on day 15 of pregnancy.
• Litter size and neonatal mortality rates were recorded.

Main Results:

• Hyperproteic diet induced morphological alterations in the liver, adrenal cortex, heart, and kidney.
• Significant increases in glucose and triglycerides, and decreases in aldosterone and corticosterone were observed.
• Early administration of the high-protein diet resulted in smaller litters and higher mortality rates at birth.

Conclusions:

• A high-protein diet during pregnancy can negatively affect maternal organ structure and function.
• This dietary pattern disrupts key hormonal and metabolic parameters.
• Early exposure to a hyperproteic diet poses risks to litter viability and neonatal survival.