PTGER3 and Insulin resistance: EP3 expression correlated substantially with body fatness and waist circumference (Spearman r = 0.43, p = 0.05) and WHR (Spearman r = 0.44, p = 0.04); and also with factors predicting insulin resistance, such as triglycerides (Spearman r = 0.46, p = 0.04) and fasting glucose (Spearman r = 0.50, p = 0.03).