Does the DASH diet lower blood pressure by altering peripheral vascular function?

We tested whether lowering of blood pressure (BP) on the dietary approaches to stop hypertension (DASH) diet was associated with changes in peripheral vascular function: endothelial function, assessed by flow-mediated vasodilatation (FMD) of the brachial artery, and subcutaneous adipose tissue blood...

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Main Authors: Hodson, L, Harnden, K, Roberts, R, Dennis, A, Frayn, K
Format: Journal article
Language:English
Published: 2010
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author Hodson, L
Harnden, K
Roberts, R
Dennis, A
Frayn, K
author_facet Hodson, L
Harnden, K
Roberts, R
Dennis, A
Frayn, K
author_sort Hodson, L
collection OXFORD
description We tested whether lowering of blood pressure (BP) on the dietary approaches to stop hypertension (DASH) diet was associated with changes in peripheral vascular function: endothelial function, assessed by flow-mediated vasodilatation (FMD) of the brachial artery, and subcutaneous adipose tissue blood flow (ATBF). We also assessed effects on heart rate variability (HRV) as a measure of autonomic control of the heart. We allocated 27 men and women to DASH diet and control groups. We measured FMD, ATBF and HRV on fasting and after ingestion of 75 g glucose, before and after 30 days on dietary intervention, aiming for weight maintenance. The control group did not change their diet. The DASH-diet group complied with the diet as shown by significant reductions in systolic (P<0.001) and diastolic (P=0.005) BP, and in plasma C-reactive protein (P<0.01), LDL-cholesterol (P<0.01) and apolipoprotein B (P=0.001), a novel finding. Body weight changed by <1 kg. There were no changes in the control group. We found no changes in FMD, or in ATBF, in the DASH-diet group, although heart rate fell (P<0.05). Glucose and insulin concentrations did not change. In this small-scale study, the DASH diet lowered BP independently of peripheral mechanisms.
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spelling oxford-uuid:5ec2ed1c-9d10-4c41-add2-0fda095d3d1f2022-03-26T17:42:40ZDoes the DASH diet lower blood pressure by altering peripheral vascular function?Journal articlehttp://purl.org/coar/resource_type/c_dcae04bcuuid:5ec2ed1c-9d10-4c41-add2-0fda095d3d1fEnglishSymplectic Elements at Oxford2010Hodson, LHarnden, KRoberts, RDennis, AFrayn, KWe tested whether lowering of blood pressure (BP) on the dietary approaches to stop hypertension (DASH) diet was associated with changes in peripheral vascular function: endothelial function, assessed by flow-mediated vasodilatation (FMD) of the brachial artery, and subcutaneous adipose tissue blood flow (ATBF). We also assessed effects on heart rate variability (HRV) as a measure of autonomic control of the heart. We allocated 27 men and women to DASH diet and control groups. We measured FMD, ATBF and HRV on fasting and after ingestion of 75 g glucose, before and after 30 days on dietary intervention, aiming for weight maintenance. The control group did not change their diet. The DASH-diet group complied with the diet as shown by significant reductions in systolic (P<0.001) and diastolic (P=0.005) BP, and in plasma C-reactive protein (P<0.01), LDL-cholesterol (P<0.01) and apolipoprotein B (P=0.001), a novel finding. Body weight changed by <1 kg. There were no changes in the control group. We found no changes in FMD, or in ATBF, in the DASH-diet group, although heart rate fell (P<0.05). Glucose and insulin concentrations did not change. In this small-scale study, the DASH diet lowered BP independently of peripheral mechanisms.
spellingShingle Hodson, L
Harnden, K
Roberts, R
Dennis, A
Frayn, K
Does the DASH diet lower blood pressure by altering peripheral vascular function?
title Does the DASH diet lower blood pressure by altering peripheral vascular function?
title_full Does the DASH diet lower blood pressure by altering peripheral vascular function?
title_fullStr Does the DASH diet lower blood pressure by altering peripheral vascular function?
title_full_unstemmed Does the DASH diet lower blood pressure by altering peripheral vascular function?
title_short Does the DASH diet lower blood pressure by altering peripheral vascular function?
title_sort does the dash diet lower blood pressure by altering peripheral vascular function
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