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Published on: October 12, 2017
Circulating immune complexes and low density lipoproteins--a molecular complex or the summation of the atherogenic
1C. Davilla University of Medicine and Pharmacy, Department of Physiopathology, Bucharest, Romania.
Insights
Circulating immune complexes (CIC) and dyslipidemia accelerate atherosclerosis in acute ischemic stroke patients. These factors act separately, summing their atherogenic effects, rather than forming a single macromolecular complex.
Area of Science:
- Cardiovascular Research
- Immunology
- Metabolic Disorders
Background:
- Acute ischemic stroke is a leading cause of disability.
- Dyslipidemia and circulating immune complexes (CIC) are implicated in atherogenesis.
- The interplay between CIC and dyslipidemia in stroke requires further elucidation.
Purpose of the Study:
- To investigate the correlation between CIC and dyslipidemia in acute ischemic stroke.
- To determine if CIC and dyslipidemia form a complex or act as independent risk factors.
- To assess their combined atherogenic capacity in stroke patients.
Main Methods:
- Study included 150 acute ischemic stroke patients and 50 healthy controls.
- Analysis of circulating immune complexes (CIC) and lipid profiles.
- Assessment of low-density lipoprotein (LDL) and high-density lipoprotein (HDL) cholesterol levels.
Main Results:
- CIC and LDL were identified as independent risk factors for atherogenesis.
- A summation of atherogenic capacity was observed when both factors were present.
- A decrease in HDL-cholesterol was noted, potentially impairing cholesterol reverse transport.
Conclusions:
- CIC and dyslipidemia act as separate, additive risk factors accelerating atherogenesis in ischemic stroke.
- The presence of both factors contributes to the onset of vascular accidents.
- Observed cholesterol and triglyceride content in CIC may be an artifact of the detection method.
Abstract:
The correlation between the circulating immune complexes (CIC) and dyslipidemia was studied in a group of 150 patients with acute ischemic stroke and 50 normal controls. The object of the study was also to find out whether these two components represent a macromolecular complex with increased atherogenic capacity or only two risk factors acting separately but achieving a summation of their atherogenic power. It can be considered that in acute ischemic stroke the presence of the two risk factors constitutes a condition of acceleration of the atherogenic process, i.e., the appearance of the vascular accident. The decrease of HDL-cholesterol detected in all the subgroups studied is probably due to the decrease of the cholesterol "reverse transport" process which favours the atherogenic process. It was found that CIC and low density lipoproteins (LDL) are risk factors which act separately determining by the effects they generate a summation of their atherogenic capacity. Cholesterol and triglycerides apparently contained in the CIC structure, can be considered as a methodologic artefact due to the use of a common reagent (PEG-6000).
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