Association between Circulatory and Plaque Resistin Levels with Carotid Plaque Instability and Ischemic Stroke Events
Ivana Jurin1, Frane Paić2,3, Stela Bulimbašić4
1Department of Cardiovascular Diseases, University Hospital Dubrava, Avenija Gojka Šuška 6, 10 000 Zagreb, Croatia.
Insights
Higher resistin levels in blood and carotid plaques are linked to unstable plaques and ischemic stroke events. Resistin may serve as a biomarker for stroke risk in patients with carotid artery stenosis.
Area of Science:
- Cardiovascular Medicine
- Neurology
- Biomarker Research
Background:
- Ischemic stroke risk correlates with carotid stenosis severity and plaque vulnerability.
- Identifying biomarkers for plaque instability and stroke is crucial for patient management.
Purpose of the Study:
- To investigate the association between circulating and plaque resistin levels with carotid plaque vulnerability and ischemic stroke events.
- To explore resistin's role as a potential biomarker in patients with moderate- to high-grade carotid artery stenosis.
Main Methods:
- Recruited 40 ischemic stroke patients and 38 asymptomatic patients undergoing carotid endarterectomy.
- Measured serum resistin via ELISA and plaque resistin expression via immunohistochemistry.
- Histologically classified carotid endarterectomy specimens.
Main Results:
- Significantly higher serum and plaque resistin levels were observed in patients with unstable carotid plaques and ischemic stroke events.
- Higher serum resistin levels were independently associated with plaque instability and ischemic stroke.
- Resistin levels correlated with specific histological features of plaque instability.
Conclusions:
- Serum resistin levels may serve as a potential biomarker for plaque vulnerability and ischemic stroke in patients with carotid artery stenosis.
- Plaque resistin expression is associated with histological indicators of plaque vulnerability.
Abstract:
ses of ischemic stroke. The risk of ischemic stroke increases with the degree of carotid stenosis and plaque vulnerability. The aim of this study was to investigate the association of circulating and plaque resistin levels with plaque vulnerability and ischemic stroke events in patients with moderate- to high-grade carotid artery stenosis.
Methods:
40 patients with ischemic stroke events and 38 neurologically asymptomatic patients scheduled for carotid endarterectomy were recruited for this study. Fasting blood samples for laboratory analysis were collected preoperatively and serum resistin levels were measured by enzyme-linked immunosorbent assays. Carotid endarterectomy specimens were analyzed according to the gold-standard procedure of histological classification. Plaque resistin expression was determined by standard immunohistochemical procedure.
Results:
Serum resistin levels and resistin plaque expression were found to be significantly higher in subjects with unstable carotid plaque (P < .001) while significantly higher serum resistin levels were also present in patients with ischemic stroke events (P < .001). In univariate stepwise logistic regression analysis, higher serum resistin levels were significantly associated with plaque instability (OR 2.223, 95% CI 1.488-3.320, P < .0001) and ischemic stroke events (OR 1.237, 95% CI 1.079-1.420, P = .002). There was also a significant association between higher serum and plaque resistin expression (OR 1.663, 95% CI1.332-2.077, P < .0001). These associations remained significant in all models of multivariate logistic regression analysis. High serum and plaque resistin levels were also significantly associated with specific histological features of plaque instability.
Conclusion:
The results suggests that serum resistin levels may be used as a potential biomarker of plaque vulnerability and ischemic stroke events in patients with moderate- to high-grade carotid artery stenosis and highlight the possible relationship that plaque resistin expression has with histological features of plaque vulnerability.
Related Concept Videos
Anatomy of the Circulatory System
Microtubule Instability
Association Areas of the Cortex
Prefrontal Association Area: This area is located in the frontal lobe and is involved in planning, decision-making, and moderating social behavior. It connects with primary motor areas,...
Associative Learning
Classical conditioning, also known...
Integration of Synaptic Events
Leveling Effect


