Related Experiment Videos
[Concentrations of serum HDL subfractions and apolipoprotein B in ischemic cerebrovascular disease]
Insights
Reduced high-density lipoprotein (HDL) subfractions and elevated apolipoprotein B (ApoB) are linked to ischemic cerebrovascular disease (ICVD). These lipoprotein abnormalities may precede stroke, suggesting early intervention could prevent it.
Area of Science:
- Biochemistry
- Neurology
- Cardiovascular Medicine
Context:
- Ischemic cerebrovascular disease (ICVD) poses a significant health challenge.
- Lipoprotein metabolism, particularly HDL subfractions and apolipoprotein B (ApoB), plays a crucial role in cardiovascular health.
- Understanding these markers in ICVD survivors is vital for risk stratification and prevention.
Purpose:
- To investigate the concentrations of HDL subfractions (HDL2, HDL3) and ApoB in ICVD survivors.
- To correlate these lipid levels with arterial lesion sites, infarct volume, and disease stage.
- To explore the potential of these markers in predicting or preventing stroke.
Summary:
- 127 ICVD survivors showed significantly reduced HDL subfractions (HDL2, HDL3) and elevated ApoB compared to controls.
- Lipoprotein abnormalities appeared to exist prior to stroke onset, with no significant difference between acute and recovery stages.
- Lower HDL-C levels were observed in the cortical artery group versus the perforating artery group, and reductions correlated inversely with infarct volume.
Impact:
- Findings suggest that altered HDL subfractions and ApoB levels are associated with ICVD.
- These lipoprotein abnormalities may predate stroke, highlighting potential for early detection.
- Determining HDL subfractions and ApoB concentrations and correcting metabolic abnormalities could aid in stroke prevention or delay.
Abstract:
The concentrations of HDL subfractions and apolipoprotein B were determined in 127 survivors of ischemic cerebrovascular disease (ICVD) confirmed by CT scanning. All these patients were classified into 3 groups according to the sites of the arterial lesion, the amount of infarction and the course of the disease. The levels of cholesterol in HDL subfractions (HDL2 and HDL3) were significantly reduced in the patient with ICVD. The level of ApoB was elevated significantly in these patients as compared with control group. No difference between acute stage group and recovery stage group was found on the levels of HDL subfractions and ApoB. It seemed that the abnormalities of the levels of HDL subfractions and ApoB might have existed prior to the onset of the stroke. It was found that the levels of HDL-C and HDL-C subfraction were significantly lower in the cortical artery group than in the perforating artery group. The amount of reduction of both HDL-C and HDL subfractions was inversely related to the size of the infarct volume in patients with ICVD. It was believed that the determination of concentration of HDL subfractions and ApoB and early correction of the ab-normality of lipoproteins metabolism might be of help in preventing or delaying the stroke.