Subject
Female; Humans; Male; Aged; Middle Aged; beta-Endorphin/blood; Biomarkers of Pain; Enkephalin; Biomarkers Reference List; Postoperative Period; Pain Management; Neutrophils/metabolism; Inflammation/metabolism; Flow Cytometry; Gene Expression Regulation; Dynorphins/blood; Interleukin-10/metabolism; Interleukin-4/metabolism; Methionine/blood; Sternotomy/methods; Wound Healing