Correlation Between Apolipoprotein E and Recurrent Acute Coronary Syndrome

Heart disease manifestation due to plaque disruption in the coronary arteries is acute coronary syndrome (ACS). Apolipoprotein-E (Apo-E) is a multifunctional protein with central roles in lipid transportation and metabolism. We analyzed the correlation between the Apo-E blood concentration and recurrent ACS.
 
This cross-sectional study recruited 90 patients who visited the outpatient cardiology clinic at Airlangga University Hospital. The patients were divided into 3 groups: without ACS, single ACS, and recurrent ACS. The Apo-E blood concentration was measured using the enzyme-linked immunosorbent assay in the Tropical Disease Center of the Airlangga University Laboratory.
 
The median Apo-E concentration was 3.6 (1.32-14.9) µg/mL in the recurrent ACS group, 4.01 (2.61-18.54) µg/mL in the single ACS group, and 3.95 (1.19-43.51) µg/mL in the group without ACS. The Kruskal-Wallis test showed no differences in Apo-E between the groups. The χ2 test demonstrated no correlation concerning Apo-E between the single ACS and recurrent ACS groups. The Fisher exact analysis showed no correlation between the Apo-E concentration and dyslipidemia.
 
Our results showed no correlation between the Apo-E concentration and recurrent ACS. (Iranian Heart Journal 2023; 24(4): 63-69)