[Modified animal model for the evaluation of weight reduction]

Area of Science:

• Animal models in nutrition research
• Obesity research
• Functional foods and nutraceuticals

Context:

• Traditional rodent models of obesity often exhibit significant inter-individual variability.
• Accurate assessment of weight-reducing interventions requires a reliable and reproducible animal model.
• Developing improved models is crucial for advancing the study of obesity and weight management.

Purpose:

• To modify the conventional obese rat model for enhanced evaluation of weight-reducing functional foods.
• To establish a more ideal and representative animal model for preclinical research.
• To reduce variability in obesity-related parameters within experimental groups.

Summary:

• A modified obese rat model was developed by selecting obesity-prone rats and standardizing diet interventions.
• Obesity-related indices (body weight, fat-pad weight, plasma lipids, glucose) were significantly worse in obese groups compared to controls in both models.
• The modified model demonstrated reduced individual variation and more pronounced obesity markers than the traditional model.

Impact:

• The enhanced model offers greater representativeness and reliability for assessing the efficacy of weight-reducing functional foods.
• This improved model can lead to more accurate and efficient preclinical screening of novel weight management products.
• Findings support the use of this modified model for future research in obesity and functional food development.