SNP rs1800795 also showed interactions with SNPs rs2228570 and rs731236 of the VDR gene, influencing hsCRP (p = 0.0036) and BMI (p = 0.0043) through DD and additive × dominant (AD) modes and SNPs rs2794521 and rs1130864 of the CRP gene, influencing sleep (p = 0.0017) and IL-1β (p = 0.0084) through additive × additive (AA) and AD modes, respectively. The gene discussed is CRP; the disease is Alzheimer disease.