| Fetuin-A (AHSG) is a multifunctional secretory protein and acts as an ectopic valve and artery calcifcation inhibitor. We
assessed the correlation between serum levels of Fetuin-A and both exon 6 (248 C/T) and exon 7 (256 C/G) mutations in
patients with coronary artery calcifcation (CAC), mitral annular calcifcation (MAC), and aortic valve calcifcation (AVC).
184 patients and 184 healthy individuals as control group were included. The genetic variants of rs4917 and rs4918 for the
AHSG gene were determined by PCR-RFLP and T-ARMS PCR techniques. Fetuin-A levels, fasting blood sugar (FBS),
urea, creatinine, calcium phosphorus, and lipid profle were measured. Fetuin-A levels were remarkedly lower in individuals
with AVC, MAC, and CAC comparing to the control group (p < 0.001). The CT + TT genotypes and the T allele (AHSG
Thr248Met) were associated with the risk of calcifcation of heart valves and coronary artery by 1.31 and 1.27 times in the
patient group, respectively. The frequency of CT genotype and T allele was considerably higher in the patient group comparing to the control group. Patients with T allele (CT+ TT) had higher levels of FBS, urea, low-density lipoproteins (LDL)-C,
phosphorus, systolic blood pressure (SBP), diastolic blood pressure (DBP) while decreased levels of triglyceride, high-density
lipoproteins (HDL)-C, calcium and fetuin-A in comparison to control group. Additionally, there was a positive correlation
between serum FBS, urea, creatinine, HDL-C, calcium with fetuin-A, and a negative correlation between phosphorous level,
SBP, and DBP with fetuin-A. T allele in rs4917 Single nucleotide polymorphism (SNP) is the risk allele of calcifcation of
heart valves and coronary arteries and fetuin-A levels correlates negatively with the occurrence of the disease |