English (United Kingdom)

https://curated-unify.zendy.io/wp-json/zendy-region/v1/featured_content/oa?rat=en

https://curated-unify.zendy.io/wp-json/zendy-region/v1/highlighted_journal/

Global: Zendy Plus annual

Presents the access of premium content as premium feature

Premium Content

Presents the keyphrase highlighting as premium feature

Keyphrase Highlighting

Presents the summarisation as premium feature

Summarisation

Insights

Presents the pdf analysis as premium feature

PDF Analysis

Presents the zaia usage as premium feature

ZAIA

Global: Zendy Tools annual

Global: Zendy Free Plan

Global: Zendy Tools monthly

Global: Zendy Plus monthly

Epidemiological studies have shown an inverse association between vitamin C intake and BP although intervention studies have failed to confirm a hypotensive effect of vitamin C supplementation. Such studies have assessed BP changes on casual measurements only, which poorly reflect 'usual' BP levels and are highly variable. Study aim was to assess the effect of vitamin C supplementation on ambulatory BP in normotensive and hypertensive older subjects. Methods Newly diagnosed untreated HT and NT persons entered a double blind randomised cross-over trial of vitamin C 500 mg daily v placebo each for 3 months separated by a 1 week wash out period. BP monitoring and vitamin C levels was taken at baseline and the end of each phase. Results 37 subjects (16 HT, 21 NT) completed the study. There was no significant period effect (p>0.3) or treatment period interaction (p>0.2). Daytime BP and vit C levels during placebo and vit C phases are shown below. (* p=.O25, tp=08, f t p<-001) Placebo VhC HI

Vitamin C Supplementation May Increase Orthostatic Blood Pressure (Bp) Falls in Elderly Persons