期刊
JOURNAL OF NEUROLOGY NEUROSURGERY AND PSYCHIATRY
卷 82, 期 6, 页码 638-642出版社
B M J PUBLISHING GROUP
DOI: 10.1136/jnnp.2010.236752
关键词
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资金
- VSB fonds
- Brain Foundation of the Netherlands
- Prinses Beatrix Fonds
- Catharijne Stichting
Objectives Reports of increased amyotrophic lateral sclerosis (ALS) with hyperlipidaemia and elevated plasma homocysteine levels as well as cigarette-smoking and polymorphisms in angiogenic genes suggest a role for altered vascular homeostasis in ALS pathogenesis. The authors assessed the association between vascular risk factors and ALS. Methods Traditional cardiovascular risk factors (smoking, hypertension, hypercholesterolaemia, diabetes and body mass index (BMI)) and cardiovascular disease prior to ALS onset established by a questionnaire were compared in 334 patients and 538 age-and sex-matched controls. Biochemical assessments (total cholesterol (TC), low-density lipoprotein (LDL), high-density lipoprotein (HDL), hs-CRP, and homocysteine) at diagnosis were measured in blood samples of 303 patients with ALS and compared with prospectively collected data from 2100 population-based controls. Results Patients with ALS used cholesterol-lowering agents less frequently (OR=0.6, p=0.008) and had a lower BMI (OR=0.9, p=0.001), a lower LDL/HDL ratio (women: OR-0.5, p<0.001; men: OR-0.4, p<0.001) and lower homocysteine levels (women: OR=0.9, p=0.02; men: OR=0.9, p<0.001). The mean LDL and TC levels were significantly lower among patients with a lower functional vital capacity percentage of predicted (FVC). In the univariate analysis, a higher LDL/HDL ratio correlated with increased survival (HR=0.9, p=0.04); after adjusting for the confounders age, site and FVC, no difference was observed. Conclusions Vascular risk factors, measured clinically and biochemically, were not associated with increased ALS. Instead, patients reported less use of cholesterol-lowering medication and had a lower premorbid BMI and favourable lipid profile-all findings consistent with the hypothesis that a higher metabolic rate plays a role in ALS.
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