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Updated: Aug 19, 2026

Isolation and Analysis of Plasma Lipoproteins by Ultracentrifugation
Published on: January 28, 2021
Lipoprotein-a: a laboratory tool for clinical categorization of CVD
M M Hoque1, P Sultana, M I Arslan
1BSMMU, Dhaka.
Insights
Elevated Lipoprotein(a) [LP(a)] levels are associated with cerebrovascular disease (CVD). Higher LP(a) concentrations may help differentiate ischemic CVD from hemorrhagic CVD.
Area of Science:
- Biochemistry
- Cardiovascular Medicine
- Neurology
Background:
- Lipoprotein(a) [LP(a)] is implicated in cardiovascular disease.
- Distinguishing between ischemic and hemorrhagic cerebrovascular disease (CVD) is clinically important.
Purpose of the Study:
- To evaluate the association between LP(a) and CVD.
- To assess LP(a) as a differentiating marker between ischemic CVD (ICVD) and hemorrhagic CVD (HCVD).
Main Methods:
- A case-control study involving 150 subjects (120 CVD cases, 30 healthy controls).
- Exclusion criteria: smokers, alcoholics, and individuals with DM, renal, thyroid, or liver disease.
- Serum LP(a) concentrations were measured in fasting blood samples.
Main Results:
- Mean serum LP(a) levels were significantly higher in both HCVD (31.9 ± 15.6 mg/dl) and ICVD (44.8 ± 24.0 mg/dl) cases compared to controls (17.6 ± 7.4 mg/dl).
- ICVD cases exhibited significantly higher LP(a) concentrations than HCVD cases.
- LP(a)'s athero-thrombo-embolic potential likely contributes to its association with CVD, particularly ICVD.
Conclusions:
- Serum LP(a) concentration is significantly associated with CVD.
- LP(a) may serve as a promising laboratory marker for differentiating ICVD from HCVD.
Abstract:
A case-control study was done to evaluate the association of Lipoprotein(a)[LP(a)] with CVD (Cerebrovascular disease) and also to assess the implication of serum LP(a) concentration as a differentiating marker between ICVD (Ischemic CVD) & HCVD (Hemorrhagic CVD). 150 non-smokers, non-alcoholic subjects free from DM, renal disease, thyroid disease and liver disease were studied. Among them 120 were CVD cases and 30 were age & sex matched healthy control. Fasting (12 hr.) blood samples were collected from all subjects and in CVD cases samples were collected after 24 hr. of attack. Serum LP(a) concentration were measured in all samples. Mean serum LP(a) concentration in control, HCVD & ICVD were found to be 17.6 +/- 7.4 mg/dl, 31.9 +/- 15.6 mg/dl and 44.8 +/- 24.0 mg/dl respectively. Both HCVD & ICVD cases showed significantly higher level of serum LP(a) concentration compared to control. Moreover ICVD cases showed significantly higher level of serum LP(a) concentration compared to HCVD cases. The exquisite athero-thrombo-embolic potential of LP(a) explain its involvement with CVD but more with ICVD in comparison to HCVD; This finding apparently suggest the prospect of serum LP(a) concentration to be used as a promising laboratory maker to differentiate clinically the ICVD from HCVD following determination of cut-off value between ICVD & HCVD by broad based comprehensive study.
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