18 Carmena-Ramon Carmena-Ramon R R Real Real JT JT Ascaso Ascaso JF JF Effect of apolipoprotein E genotype on lipid levels and response to diet in familial hypercholesterolemia Effect of apolipoprotein E genotype on lipid levels and response to diet in familial hypercholesterolemia Nutr Metab Cardiovasc Dis. The gene discussed is APOE; the disease is familial hypercholesterolemia.