The differences in the expression of sterol O-acyltransferase 1 (SOAT1), a gene involved in atherosclerosis, cholesterol content, glucose, and lipid metabolism [116] in WB but mostly in SM breasts compared to normal muscles, further supporting the evidence of changes in lipid and cholesterol homeostasis in broiler chickens affected by myopathies. The gene discussed is SOAT1; the disease is atherosclerosis.