Research Article

Rat Models of Diet-Induced Obesity and High Fat/Low Dose Streptozotocin Type 2 Diabetes: Effect of Reversal of High Fat Diet Compared to Treatment with Enalapril or Menhaden Oil on Glucose Utilization and Neuropathic Endpoints

Table 2

Effect of reversal of high fat diet, enalapril, or menhaden oil in diet-induced obese or type 2 diabetic rats on nonfasting serum free fatty acids, triglycerides, cholesterol, leptin, and insulin levels.

ConditionFree fatty acids  
(mmol/L)
Triglycerides  
(mg/dL)
Cholesterol  
(mg/mL)
Leptin  
(ng/mL)
Insulin  
(ng/mL)

Control (12)0.20 ± 0.0385 ± 83.0 ± 0.511.1 ± 1.14.3 ± 0.8
Obese (11)0.20 ± 0.0594 ± 84.1 ± 0.338.9 ± 5.8a4.5 ± 0.8
Obese + normal diet (10)0.16 ± 0.0394 ± 133.6 ± 0.510.4 ± 0.8d3.8 ± 0.7
Obese + enalapril (12)0.20 ± 0.0283 ± 123.4 ± 0.324.8 ± 4.129.0 ± 2.6a,c,d
Obese + menhaden oil (12)0.24 ± 0.0262 ± 93.7 ± 0.665.6 ± 17.4a19.5 ± 3.2a,c,d

Diabetic (10)0.63 ± 0.11a,d319 ± 59a,d8.0 ± 2.3a16.7 ± 8.50.9 ± 0.4
Diabetic + normal diet (10)0.31 ± 0.06232 ± 466.0 ± 1.05.2 ± 1.95.2 ± 1.4
Diabetic + enalapril (11)0.48 ± 0.15179 ± 363.2 ± 0.54.3 ± 1.26.7 ± 1.5b
Diabetic + menhaden oil (11)0.29 ± 0.03104 ± 22c4.4 ± 0.716.3 ± 4.0b5.5 ± 1.3b

Data are presented as the mean ± S.E.M. compared to control; compared to obese matched condition; compared to diabetic; compared to obese. Parentheses indicate the number of experimental animals.