کد مقاله کد نشریه سال انتشار مقاله انگلیسی نسخه تمام متن
10214003 1676265 2018 9 صفحه PDF دانلود رایگان
عنوان انگلیسی مقاله ISI
Arginine impairs endothelial and executive function in older subjects with cardiovascular risk
ترجمه فارسی عنوان
آرژینین عملکرد اندوتلیال و اجرایی در افراد مسن با خطر قلبی عروقی را مختل می کند
کلمات کلیدی
موضوعات مرتبط
علوم زیستی و بیوفناوری علم عصب شناسی سیستم های درون ریز و اتونومیک
چکیده انگلیسی
Neurovascular coupling, the relationship between cerebral blood flow and neuronal activity, is attenuated in patients with impaired executive function. We tested the hypothesis that peripheral vascular function may associate with executive function in older subjects with cardiovascular risk factors and that treatment with the antioxidant L-arginine would improve both vascular and executive function. Nineteen subjects with type 2 diabetes mellitus and/or controlled hypertension were enrolled. Subjects were treated with L-arginine or placebo for 4 days in a randomized, double-blinded, cross-over study. Brachial artery vascular function, peripheral artery tonometry, and Trail Making Test Part B testing were performed on day 1 and day 4 during each condition. L-arginine significantly reduced the digital reactive hyperemia index, and the comparison of changes against placebo was significant (P = .01). With executive function testing, we observed a significant interaction between treatment and order. Restricting the analysis to the first treatment period, subjects treated with placebo decreased their Trail Making Test Part B times by 57.3 ± 52.5 seconds from day 1 to day 4 (P = .01) while those treated with arginine had no significant change (6.4 ± 18.4 seconds worse, P = .37). In addition, L-arginine was associated with increased mean arterial pressure from 88 ± 9 mm Hg to 92 ± 11 mm Hg, which trended toward significance. L-arginine treatment worsened digital microvascular and executive function in older subjects with cardiovascular risk factors. These data further support a link between vascular and executive function.
ناشر
Database: Elsevier - ScienceDirect (ساینس دایرکت)
Journal: Journal of the American Society of Hypertension - Volume 12, Issue 10, October 2018, Pages 723-731
نویسندگان
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