Academic Journal
Cocoa flavanol consumption improves lower extremity endothelial function in healthy individuals and people with type 2 diabetes
| العنوان: | Cocoa flavanol consumption improves lower extremity endothelial function in healthy individuals and people with type 2 diabetes |
|---|---|
| المؤلفون: | Bapir, Mariam, Untracht, Gavrielle R, Cooke, Debbie, McVey, John H, Skene, Simon S, Campagnolo, Paola, Whyte, Martin B, Dikaios, Nikolaos, Rodriguez-Mateos, Ana, Sampson, David D, Sampson, Danuta M, Heiss, Christian |
| المصدر: | Food & Function (2022) |
| بيانات النشر: | ROYAL SOC CHEMISTRY |
| سنة النشر: | 2022 |
| المجموعة: | University College London: UCL Discovery |
| الوصف: | BACKGROUND: diabetes and age are major risk factors for the development of lower extremity peripheral artery disease (PAD). Cocoa flavanol (CF) consumption is associated with lower risk for PAD and improves brachial artery (BA) endothelial function. OBJECTIVES: to assess if femoral artery (FA) endothelial function and dermal microcirculation are impaired in individuals with type 2 diabetes mellitus (T2DM) and evaluate the acute effect of CF consumption on FA endothelial function. METHODS: in a randomised, controlled, double-blind, cross-over study, 22 individuals (n = 11 healthy, n = 11 T2DM) without cardiovascular disease were recruited. Participants received either 1350 mg CF or placebo capsules on 2 separate days in random order. Endothelial function was measured as flow-mediated dilation (FMD) using ultrasound of the common FA and the BA before and 2 hours after interventions. The cutaneous microvasculature was assessed using optical coherence tomography angiography. RESULTS: baseline FA-FMD and BA-FMD were significantly lower in T2DM (FA: 3.2 ± 1.1% [SD], BA: 4.8 ± 0.8%) compared to healthy (FA: 5.5 ± 0.7%, BA: 6.0 ± 0.8%); each p < 0.001. Whereas in healthy individuals FA-FMD did not significantly differ from BA-FMD (p = 0.144), FA-FMD was significantly lower than BA-FMD in T2DM (p = 0.003) indicating pronounced and additional endothelial dysfunction of lower limb arteries (FA-FMD/BA-FMD: 94 ± 14% [healthy] vs. 68 ± 22% [T2DM], p = 0.007). The baseline FA blood flow rate (0.42 ± 0.23 vs. 0.73 ± 0.35 l min-1, p = 0.037) and microvascular dilation in response to occlusion in hands and feet were significantly lower in T2DM subjects than in healthy ones. CF increased both FA- and BA-FMD at 2 hours, compared to placebo, in both healthy and T2DM subgroups (FA-FMD effect: 2.9 ± 1.4%, BA-FMD effect 3.0 ± 3.5%, each pintervention< 0.001). In parallel, baseline FA blood flow and microvascular diameter significantly increased in feet (3.5 ± 3.5 μm, pintervention< 0.001) but not hands. Systolic blood pressure ... |
| نوع الوثيقة: | article in journal/newspaper |
| وصف الملف: | text |
| اللغة: | English |
| Relation: | https://discovery.ucl.ac.uk/id/eprint/10157140/1/Sampson_Cocoa%20flavanol%20consumption%20improves%20lower%20extremity%20endothelial%20function%20in%20healthy%20individuals%20and%20people%20with%20type%202%20diabetes_AOP.pdf; https://discovery.ucl.ac.uk/id/eprint/10157140/ |
| الاتاحة: | https://discovery.ucl.ac.uk/id/eprint/10157140/1/Sampson_Cocoa%20flavanol%20consumption%20improves%20lower%20extremity%20endothelial%20function%20in%20healthy%20individuals%20and%20people%20with%20type%202%20diabetes_AOP.pdf https://discovery.ucl.ac.uk/id/eprint/10157140/ |
| Rights: | open |
| رقم الانضمام: | edsbas.A5187CF4 |
| قاعدة البيانات: | BASE |
| الوصف غير متاح. |