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吸烟可以增加ALS的发生率

发表者:吴士文 人已读

这份研究发现,吸烟可增加ALS的发生率。烟龄可增加ALS的发生率,吸33年烟的人要比不吸烟的人发生ALS的风险增加2倍以上。相反,戒烟的时间将可以减少ALS的发生率。

1: Ann Neurol. 2009 Apr;65(4):378-85.Click here to read Links武警总医院神经内科吴士文

     

    Comment in:
        Ann Neurol. 2009 Apr;65(4):361-2.

    Smoking and risk for amyotrophic lateral sclerosis: analysis of the EPIC cohort.
    Gallo V, Bueno-De-Mesquita HB, Vermeulen R, Andersen PM, Kyrozis A, Linseisen J, Kaaks R, Allen NE, Roddam AW, Boshuizen HC, Peeters PH, Palli D, Mattiello A, Sieri S, Tumino R, Jiménez-Martín JM, Díaz MJ, Suarez LR, Trichopoulou A, Agudo A, Arriola L, Barricante-Gurrea A, Bingham S, Khaw KT, Manjer J, Lindkvist B, Overvad K, Bach FW, Tjønneland A, Olsen A, Bergmann MM, Boeing H, Clavel-Chapelon F, Lund E, Hallmans G, Middleton L, Vineis P, Riboli E.

    Division of Epidemiology, Public Health and Primary Care, Imperial College London, United Kingdom. v.gallo@imperial.ac.uk

    OBJECTIVE: Cigarette smoking has been reported as "probable" risk factor for Amyotrophic Lateral Sclerosis (ALS), a poorly understood disease in terms of aetiology. The extensive longitudinal data of the European Prospective Investigation into Cancer and Nutrition (EPIC) were used to evaluate age-specific mortality rates from ALS and the role of cigarette smoking on the risk of dying from ALS. METHODS: A total of 517,890 healthy subjects were included, resulting in 4,591,325 person-years. ALS cases were ascertained through death certificates. Cox hazard models were built to investigate the role of smoking on the risk of ALS, using packs/years and smoking duration to study dose-response. RESULTS: A total of 118 subjects died from ALS, resulting in a crude mortality rate of 2.69 per 100,000/year. Current smokers at recruitment had an almost two-fold increased risk of dying from ALS compared to never smokers (HR = 1.89, 95% C.I. 1.14-3.14), while former smokers at the time of enrollment had a 50% increased risk (HR = 1.48, 95% C.I. 0.94-2.32). The number of years spent smoking increased the risk of ALS (p for trend = 0.002). Those who smoked more than 33 years had more than a two-fold increased risk of ALS compared with never smokers (HR = 2.16, 95% C.I. 1.33-3.53). Conversely, the number of years since quitting smoking was associated with a decreased risk of ALS compared with continuing smoking. INTERPRETATION: These results strongly support the hypothesis of a role of cigarette smoking in aetiology of ALS. We hypothesize that this could occur through lipid peroxidation via formaldehyde exposure.

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发表于:2009-06-06 11:08

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