INS and Insulin resistance: The EK group showed decreased fasting serum insulin (FSI) and homeostatic model assessment for insulin resistance (HOMA-IR) compared to the ob/ob group (FSI: 2.62 ± 0.58 ng/mL vs. 5.66 ± 1.36 ng/mL, p = 0.07; HOMA-IR: 48.30 ± 14.29 vs. 175.13 ± 42.40, p < 0.05).