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    Cohort profile: sympathetic activity and ambulatory blood pressure in Africans (SABPA) prospective cohort study

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    Date
    2015
    Author
    Malan, Leoné
    Hamer, Mark
    Steyn, Hendrik S.
    Malan, Nicolaas T.
    Frasure-Smith, Nancy
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    Abstract
    Adapting to an over–demanding stressful urban environment may exhaust the psychophysiological resources to cope with these demands, and lead to sympathetic nervous system dysfunction. The evidence that an urban–dwelling lifestyle may be detrimental to the cardiometabolic health of Africans motivated the design of the Sympathetic activity and Ambulatory Blood Pressure in African Prospective cohort study. We aimed to determine neural mechanistic pathways involved in emotional distress and vascular remodelling. The baseline sample included 409 teachers representing a bi–ethnic sex cohort from South Africa. The study was conducted in 2008 09 and repeated after 3–year follow–up in 2011 12, with an 87.8% successful follow–up rate. Seasonal changes were avoided and extensive clinical assessments were performed in a well–controlled setting. Data collection included sociodemographics, lifestyle habits, psychosocial battery and genetic" "analysis, mental stress responses mimicking daily life stress (blood pressure and haemostatic, cardiometabolic, endothelial and stress hormones). Target organ damage was assessed in the brain, heart, kidney, blood vessels and retina. A unique highly phenotyped cohort is presented that can address the role of a hyperactive sympathetic nervous" system and neural response pathways contributing to the burden of cardiometabolic diseases in Africans.
    URI
    http://hdl.handle.net/10394/18561
    https://academic.oup.com/ije/article/44/6/1814/2572480
    https://doi.org/10.1093/ije/dyu199
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