aminoacids arteriosclerosis atherosclerosis blood congresses congrès control coronaryarterydisease coronaryheartdisease disorders etiology geneticaspects genetics hypercholesterolemia hyperlipoproteinemias lipoproteins lipoprotéinessanguines metabolism neuraltransmission neurotransmitters pathophysiology prevention qu85b61471986 qy465r2951986 rc692 riskfactors wg550m718