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high-fat diet-induced obesity Sprague-Dawley rat

Sprague-Dawley rats fed high-energy (fat and/or sugar) diets are the prevalent diet-induced obesity rat model, showing glucose intolerance, dyslipidemia and hypertension. A 45% kcal-fat diet for 8 weeks produces chronic metabolic stress with hepatic histological changes. Rats fed a 45% kcal high-fat diet rapidly gain weight, become hyperinsulinemic and develop insulin resistance in 4-6 weeks.

Outcome measures

血糖浓度读数。

Experimental animals

大鼠尾静脉血糖测定
Age
3 周龄起始,8 周干预
Sex
Male
Tissue
blood
大鼠尾静脉血糖测定
Age
3 周龄起始,8 周干预
Sex
Male
Tissue
blood

Experimental procedures

**Measurement of Blood Glucose ** **Measurement of Blood Glucose ** Blood samples were collected from the tail vein for the determination of blood glucose levels using Accutrend Plus test strips and meter (Roche).

Model identity

Model name
high-fat diet-induced obesity Sprague-Dawley rat
Species
rat
Strain
Sprague-Dawley

Biological characteristics

Research questions
Whether chronic high-fat feeding reproduces metabolic syndrome components in Sprague-Dawley rats, and how diet-induced metabolic stress affects liver regenerative capacity.
Limitations
Outbred stock; the magnitude of glucose intolerance and dyslipidemia depends on diet composition and feeding duration.

Experimental methods

Experimental protocols

Reagents and materials

References

  1. Rat Models of Metabolic Syndrome. Methods in Molecular Biology 2019 (PMID:31228162)
  2. Chronic high-fat diet reprograms liver regenerative capacity in Sprague-Dawley rats (PMID:42885327)
  3. Alternatives to the Streptozotocin-Diabetic Rodent. Int Rev Neurobiology 2016 (PMID:27133146)
  4. protocols.io · vv2 · Michael Hill · This is an open access protocol distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited
  5. ARRIVE 2.0 guidelines