E-ISSN 1309-4866
Research Article
LDL Subclasses in Ischemic Stroke: A Risk Factor?
1 Clinic of Neurology, Private Muş Şifa Hospital, Muş, Turkey  
2 Department of Neurology, Bakırköy Sadi Konuk Research and Training Hospital, İstanbul, Turkey  
3 Department of Biochemistry, Bakırköy Sadi Konuk Research and Training Hospital, İstanbul, Turkey  
4 Clinic of Cardiology, Balıklıgöl State Hospital, Şanlıurfa, Turkey  
Arch Neuropsychiatry ; : -
DOI: 10.5152/npa.2017.19393
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Key Words: Cerebrovascular disease, acute ischemic stroke, hyperlipidemia, LDL subclasses
Abstract

Introduction: Seven low-density lipoprotein (LDL) subclasses are identified and smaller LDL particles are associated with an increased risk for cardiovascular events. However, there is limited data about the relationship between the acute ischemic stroke (AIS) subtypes and LDL subclasses. The aim of our study is to investigate the relationship between AIS subtypes and LDL subclasses.

 

Methods: This study consisted of 110 AIS patients and 60 healthy controls. Stroke patients were classified according to the TOAST classification system as cardioembolic infarct (CI), large artery atherosclerosis (LAA) and lacunar infarct (LI). LDL subclasses were distributed as seven bands (LDL-1 and -2 defined as large, and LDL-3 to -7 defined as small-LDL particle), using the LipoPrintª System. Control group and AIS subtypes were compared in terms of LDL subclasses. P <0.05 was considered statistically significant.

 

Results: AIS patients had higher LDL-2, LDL-3 and LDL-4 subclasses compared to the control groups, while LDL-1 was similar in two groups. In addition, LDL-2 and LDL-3 subclasses were significantly higher in each AIS subtype when compared to the control group. LDL-4 subclasses were significantly higher in LAA and LI subtypes than in the control group, but there was no relationship for CI subtypes. Smaller subclasses LDL-5 to LDL-7 were undetectable in both AIS patients and controls. Using regression analysis; age, LDL-2, LDL-3 and LDL-4 were found to be independent predictors of AIS development.

 

 

Conclusion: Our study showed that examination of LDL subclasses may be important in management of AIS patients. LDL-2, LDL-3 and LDL-4 are independent predictors of AIS development. These findings should be supported by further large studies.

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