CX3CR1 and acute myocardial infarction: In summary, the significant higher presence of the variant allele I249 in homo- and heterozygosis found in controls (91%) and in AMI survivors (94%), with respect to the patients died of AMI (48%), showed the relevance of this polymorphism both in the onset and outcome of acute myocardial infarction, confirming the correlation between CX3CR1 genotype and prognosis of the acute event.