Effects of probiotic bacteria, isoflavones and simvastatin on lipid profile and atherosclerosis in cholesterol-fed rabbits: a randomized double-blind study
2009

Effects of Probiotics, Isoflavones, and Simvastatin on Rabbit Lipid Profiles

Sample size: 30 publication 10 minutes Evidence: moderate

Author Information

Author(s): Cavallini Daniela, Bedani Raquel, Bomdespacho Laura Q, Vendramini Regina C, Rossi Elizeu A

Primary Institution: Sao Paulo State University

Hypothesis

The study aims to compare the effects of Enterococcus faecium, isoflavones, and simvastatin on lipid parameters and atherosclerosis in cholesterol-fed rabbits.

Conclusion

Probiotic E. faecium can improve lipid profiles, and simvastatin is effective in managing blood lipids, but neither had significant effects on atherosclerosis development.

Supporting Evidence

  • Simvastatin reduced total cholesterol by 16% and increased HDL-C by 98%.
  • E. faecium raised HDL-C levels by 43.3%.
  • Isoflavones decreased total cholesterol by 9%, but this was not statistically significant.
  • Groups treated with E. faecium and simvastatin had lower triglyceride levels compared to controls.
  • The extent of atherosclerosis was reduced in groups treated with isoflavones and simvastatin, but not significantly.

Takeaway

This study tested how certain foods and medicines affect cholesterol in rabbits. Some helped lower cholesterol, but none stopped heart disease from getting worse.

Methodology

Rabbits were divided into five groups and fed different diets for 60 days to assess the effects on cholesterol and atherosclerosis.

Potential Biases

Potential bias in the selection of animal models and dietary interventions.

Limitations

The study was limited to a specific animal model and may not directly translate to humans.

Participant Demographics

New Zealand white male rabbits, 8–9 weeks old.

Statistical Information

P-Value

p<0.05

Statistical Significance

p<0.05

Digital Object Identifier (DOI)

10.1186/1476-511X-8-1

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