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法国科学家发现焦虑伤血管
http://www.100md.com 2001年7月26日 家庭医生医疗保健网
     路透社纽约健康消息 我们知道,恼怒和仇恨会增加患心脏疾病和心脏病发作的危险。但现在看来,似乎焦虑也会促进颈动脉的硬化过程,同时会使血管增粗。

    动脉硬化是由于脂肪沉积在动脉血管内壁上形成动脉粥样斑而造成的。法国研究人员对700名年龄在59岁到71岁之间的男女进行了为期4年的跟踪调查。他们用调查问卷来评估研究对象的焦虑程度,用超声波来探测每个人的颈部最大的血管颈动脉的硬化和增粗情况,并对每一位研究对象进行了分析。评估的内容不仅包括他们的焦虑程度和颈动脉的情况,同时还有心脏的冠状动脉疾病出现的情况,吸烟和饮酒量以及血压和目前的治疗措施等。该研究结果发表在一月份的《动脉硬化、血栓与血管生物学》杂志上。

    调查者发现,经常有焦虑情绪的男性会比没有焦虑情绪的男性更容易发生动脉硬化和血管壁变厚,而女性则只表现为血管壁变厚。对于男性和女性在焦虑程度与脂肪沉积之间的关系上为什么有不同还没有合理的解释。与其他可引起动脉疾病的危险因素相比,焦虑对动脉的改变作用可能更加显著。
, 百拇医药
    目前还需要做一些其他的研究工作来更好地解释这次研究发现的问题。

    Anxiety Linked to Blood Vessel Problems

    NEW YORK (Reuters Health) - The fact that anger and hostility put people at higher risk of heart disease and heart attack has been known for some time. Now it appears that anxiety may also accelerate the development of atherosclerosis in the carotid arteries, and may cause those vessels to become thicker as well.
, http://www.100md.com
    Atherosclerosis is characterized by fatty deposits called plaque that form on the inner walls of arteries.

    French researchers followed over 700 men and women aged 59 to 71 for up to 4 years. A questionnaire was administered to assess the study participants‘ anxiety levels. Ultrasound imaging was used to detect atherosclerosis and increased thickness in the each individual‘s carotids--the large arteries located in the neck.

    Dr. Sabrina Paterniti of the Hopital de la Salpetriere in Paris and colleagues evaluated each participant over time. Anxiety level and carotid artery health was assessed, as well as the presence of coronary artery disease in the heart, smoking status, alcohol use, blood pressure and current medication use. The study results are published in the January issue of Arteriosclerosis, Thrombosis, and Vascular Biology.
, http://www.100md.com
    The investigators found that men with sustained anxiety showed both a higher rate of development of atherosclerosis and increased blood vessel thickness when compared with men who were not anxious. Anxious women showed an increased blood vessel thickness only. ``There was no clear explanation for the different association between anxiety and plaque in men and women,‘‘ the authors write.

    Additional studies are indicated, the researchers conclude, to better understand the mechanisms involved in these findings. Paterniti and colleagues point out that anxiety may be a trait more amenable to change than other risk factors for artery disease., 百拇医药