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Plasma total homocysteine levels and cranial magnetic resonance imaging findings in elderly persons: the Cardiovascular Health Study
- Source :
- Archives of neurology. 61(1)
- Publication Year :
- 2004
-
Abstract
- Background An elevated plasma total homocysteine (tHcy) level is associated with an increased risk of vascular disease. Some studies have shown associations between tHcy level and small-vessel disease of the brain on magnetic resonance imaging (MRI). Design In the Cardiovascular Health Study, 622 elderly participants without a history of transient ischemic attack or stroke had results for tHcy level and cranial MRI. We sought associations between tHcy level and MRI findings of ventricular grade, sulcal grade, white matter grade, and infarcts. We controlled for other factors, including levels of creatinine, folate, and vitamins B 6 and B 12 and methylenetetrahydrofolate reductase genotype. Results After controlling for age and sex, tHcy level was not associated with the individual MRI findings. Further adjustments for other factors and other blood tests had little effect on these findings. The only significant finding was a linear trend across quintiles of tHcy level and a pattern of MRI findings combining infarcts and high white matter grade. The linear trend remained significant after controlling for other risk factors and atherosclerotic markers (top quintile vs bottom quintile odds ratio, 3.3; 95% confidence interval, 0.96-11.20; P = .04 for linear trend) but was slightly diminished after further controlling for creatinine, folate, and vitamins B 6 and B 12 (odds ratio, 3.2; 95% confidence interval, 0.81-13.10; P = .07 for linear trend). Conclusion We were unable to confirm the results of previous studies with respect to tHcy level and individual MRI findings, although an association was seen for an MRI pattern combining infarcts and high white matter grade.
- Subjects :
- Brain Infarction
Male
medicine.medical_specialty
Aging
Homocysteine
White matter
chemistry.chemical_compound
Arts and Humanities (miscellaneous)
Risk Factors
Internal medicine
medicine
Odds Ratio
Humans
Stroke
Aged
Creatinine
medicine.diagnostic_test
biology
business.industry
Brain
Magnetic resonance imaging
Odds ratio
medicine.disease
Magnetic Resonance Imaging
Confidence interval
Radiography
Endocrinology
medicine.anatomical_structure
chemistry
Methylenetetrahydrofolate reductase
Cardiology
biology.protein
Female
Neurology (clinical)
business
Subjects
Details
- ISSN :
- 00039942
- Volume :
- 61
- Issue :
- 1
- Database :
- OpenAIRE
- Journal :
- Archives of neurology
- Accession number :
- edsair.doi.dedup.....5b7f5a59bd4571f44a452be24822b948