APOB and coronary artery disorder: On the contrary, in the Uighurs with CHD our analysis (depending on the availability of the restriction site) showed (Table 5) that in the group of homozygotes on the X2 allele (X2X2) of the Apo B gene the level of total cholesterol (TC), the low density lipoprotein cholesterol (LDLC) of the atherogenic index (AI) and the B apolipoprotein was significantly higher (p < 0.05) than in the heterozygotes X1X2 and homozygotes X1X1.