BMI: body mass index; CA: cancer; G-CSF: granulocyte colony-stimulating factor; BSA: blood serum albumin; ECOG: Eastern Cooperative Oncology Group performance status; eGFR: estimated glomerular filtration rate; CEA: carcinoembryonic antigen; LDH: lactate dehydrogenase. The gene discussed is CEACAM5; the disease is cancer.