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Role of homocysteine in cerebrovascular disease
M M Hoque1, M Z Rahman, M R Rahman
1Department of Biochemistry, Bangabandhu Sheikh Mujib Medical University, Shahbag, Dhaka, Bangladesh.
Insights
Elevated homocysteine levels are significantly associated with cerebrovascular disease (CVD). This finding highlights hyperhomocysteinemia as a key modifiable risk factor for preventing CVD and its subtypes, ischemic and hemorrhagic cerebrovascular disease.
Area of Science:
- Neurology
- Cardiovascular Medicine
- Biochemistry
Background:
- Cerebrovascular disease (CVD) is a major global health concern, contributing significantly to morbidity and mortality.
- Established risk factors for CVD exist, but hyperhomocysteinemia is an emerging, modifiable factor.
- Homocysteine may be vasculotoxic, linked to endothelial dysfunction and impaired fibrinolysis.
Purpose of the Study:
- To investigate the association between serum total homocysteine levels and cerebrovascular disease.
- To compare homocysteine levels in CVD cases versus healthy controls.
- To examine differences in homocysteine levels between ischemic and hemorrhagic cerebrovascular disease subtypes.
Main Methods:
- A case-control study involving 248 participants (104 CVD cases, 144 controls).
- CVD cases included ischemic cerebrovascular disease (ICVD) and hemorrhagic cerebrovascular disease (HCVD) subgroups.
- Serum total homocysteine levels were measured in all participants.
Main Results:
- Mean homocysteine levels were significantly higher in CVD cases (15.55±7.35 µmol/L) compared to controls (12.95±6.20 µmol/L).
- No significant difference in homocysteine levels was observed between ICVD (15.70±7.82 µmol/L) and HCVD (15.34±6.78 µmol/L) subgroups.
- Homocysteine levels were significantly elevated in individuals with cerebrovascular disease.
Conclusions:
- Hyperhomocysteinemia is a significant risk factor for cerebrovascular disease.
- Measuring homocysteine levels may aid in CVD risk assessment and prevention strategies.
- Further research could explore targeted interventions for hyperhomocysteinemia to reduce CVD burden.
Abstract:
Cerebrovascular disease (CVD) is one of the leading causes of morbidity and mortality worldwide and places a huge burden on the health care system. The most common forms of CVD are ischemic cerebrovascular disease (ICVD) and hemorrhagic cerebrovascular disease (HCVD). Since, the treatment, prognosis and rehabilitation of CVD is frustrating, prevention of CVD by properly addressing its modifiable risk factors might be the spearhead to combat the burden. There are several established risk factors associated with CVD, but a newer modifiable risk factor, hyperhomocysteinemia has created a new window for limiting the occurrence of CVD. Homocysteine is potentially vasculotoxic because of its association with endothelial dysfunction and impairment of fibrinolytic system. A total of 248 subjects were included in this case control study. Among them 104 were diagnosed CVD cases (ICVD-59, HCVD- 45) and 144 were age and sex matched healthy controls. Serum total homocysteine was measured in all the study subjects. Mean total homocysteine was found 12.95+/-6.20 micromol/L, 15.55+/-7.35 micromol/L in controls and cases respectively and 15.70+/-7.82 micromol/L, 15.34+/-6.78 micromol/L in ICVD and HCVD respectively. Homocysteine found to be significantly raised in CVD cases compared to controls but sub groups of CVD (ICVD & HCVD) did not differ between themselves with respect to serum homocysteine.
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