Figure 4.

The possibility of ATP-binding cassette subfamily A member 1 (ABCA1) as a new biomarker to identify symptomatic carotid plaque rupture using enzyme-linked immunosorbent assay (ELISA). To determine whether ABCA1 can be detected in the serum of patients with carotid plaques, serum level of ABCA1 was measured using ELISA. Only the patients with symptomatic ruptured plaques tested positive for ABCA1, which led us to hypothesize that it could be used as a biomarker for symptomatic carotid plaque rupture. *P<0.05 Fisher exact test.