APOE and atherosclerosis: Among the other atherosclerosis-related genes regardless of the studied group healthy or HH, we found ApoE3/3 genotype was the most prevalent in our study: the prevalence of ApoE genotypes E3/3, E3/4, and E2/3 was found to be 81%, 10%, and 7%, respectively, and 0–1% for each of E2/4, E4/4 and E2/2 genotypes in the healthy group; very close results were found in the HH group: 79% (E3/3), 14%(E3/4), 7%(E2/3), and 0% (E2/4, E4/4 and E2/2).