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Gastrointestinal morphological alterations in obese rats kept under hypercaloric diets
Raphael Castiglioni Nascimento1, Haryanne Mabel, Bruna Nunes Queiroz
1Departamento de Ciências da Saúde, Centro Universitário Norte do Espírito Santo, São Mateus, ES, Brazil.
International Journal of General Medicine
|June 29, 2013
Summary
A hypercaloric diet significantly increases abdominal fat and alters gastrointestinal morphology in rats, particularly affecting stomach development. This research provides insights into diet-induced obesity and its physical consequences.
Area of Science:
- Physiology
- Gastroenterology
- Obesity Research
Background:
- Hypercaloric diets are established experimental models for inducing obesity.
- Understanding the morphological impact of such diets on the gastrointestinal system is crucial.
Purpose of the Study:
- To compare the morphological characteristics of inferior gastrointestinal organs in rats fed a hypercaloric diet versus a control diet.
- To identify specific anatomical and weight-related changes in the gastrointestinal tract due to diet-induced obesity.
Main Methods:
- A 10-week experimental study involving rats fed a hypercaloric diet.
- Weekly monitoring of food consumption, body weight, and abdominal circumference.
- Post-sacrifice assessment of 20 variables related to gastrointestinal morphology, including organ weights and lengths.
Main Results:
- Significant increases in abdominal circumference and retroperitoneal fat were observed.
- Alterations in the ratios of fat to body weight, and organ weights to body weight (stomach, mesentery) were noted.
- Increased length of the small intestine, large intestine, and cecum lateral line were significant findings.
Conclusions:
- Hypercaloric diets promote increased abdominal fat accumulation.
- These diets induce significant morphological alterations in the gastrointestinal tract, with a notable impact on stomach development and overall organ proportions.
