Stop-gain mutations were identified in LPL (6/30; 20%) and LDLR (4/30; 13.3%), splice donor site mutations in SLCO1B1 (1/30; 3.3%) and CETP (3/30; 10%), and a novel LDLR frameshift mutation in 2/30 (6.7%) was detected in siblings F5 and F6 from FAM14, with F5 carrying a homozygous variant (A/A, Definite FH) and F6 carrying a heterozygous variant (AC/A, Probable FH). This evidence concerns the gene SLCO1B1 and familial hyperaldosteronism.