ESR1 and Insulin resistance: CRP, C-reactive protein; ER+, estrogen receptor positive; HDL-cholesterol, high density cholesterol; HER2+, positive for human epidermal growth factor receptor 2; HOMA-IR, homeostatic model assessment for insulin resistance; LDL-cholesterol, low-density cholesterol; NEFA, non-esterified fatty acids; PR+, progesterone receptor positive; TBARS, thiobarbituric acid reactive substances; TG, triglycerides