Navigation Links
Bioactive compounds in berries can reduce high blood pressure

Eating blueberries can guard against high blood pressure, according to new research by the University of East Anglia (UEA) and Harvard University.

High blood pressure or hypertension is one of the major cardiovascular diseases worldwide. It leads to stroke and heart disease and costs more than $300 billion each year. Around a quarter of the adult population is affected globally including 10 million people in the UK and one in three US adults.

Published next month in the American Journal of Clinical Nutrition, the new findings show that bioactive compounds in blueberries called anthocyanins offer protection against hypertension. Compared with those who do not eat blueberries, those eating at least one serving a week reduce their risk of developing the condition by 10 per cent.

Anthocyanins belong to the bioactive family of compounds called flavonoids and are found in high amounts in blackcurrants, raspberries, aubergines, blood orange juice and blueberries. Other flavonoids are found in many fruits, vegetables, grains and herbs. The flavonoids present in tea, fruit juice, red wine and dark chocolate are already known to reduce the risk of cardiovascular disease.

This is the first large study to investigate the effect of different flavonoids on hypertension.

The team of UEA and Harvard scientists studied 134,000 women and 47,000 men from the Harvard established cohorts, the Nurses' Health Study and the Health Professionals Follow-up Study over a period of 14 years. None of the participants had hypertension at the start of the study. Subjects were asked to complete health questionnaires every two years and their dietary intake was assessed every four years. Incidence of newly diagnosed hypertension during the 14-year period was then related to consumption of various different flavonoids.

During the study, 35,000 participants developed hypertension. Dietary information identified tea as the main contributor of flavonoids, with apples, orange juice, blueberries, red wine, and strawberries also providing important amounts. When the researchers looked at the relation between individual subclasses of flavonoids and hypertension, they found that participants consuming the highest amounts of anthocyanins (found mainly in blueberries and strawberries in this US-based population) were eight per cent less likely to be diagnosed with hypertension than those consuming the lowest amounts. The effect was even stronger in participants under 60.

The effect was strongest for blueberry rather than strawberry consumption. Compared to people who ate no blueberries, those eating at least one serving of blueberries per week were 10 per cent less likely to become hypertensive.

"Our findings are exciting and suggest that an achievable dietary intake of anthocyanins may contribute to the prevention of hypertension," said lead author Prof Aedin Cassidy of the Department of Nutrition at UEA's Medical School.

"Anthocyanins are readily incorporated into the diet as they are present in many commonly consumed foods. Blueberries were the richest source in this particular study as they are frequently consumed in the US. Other rich sources of anthocyanins in the UK include blackcurrants, blood oranges, aubergines and raspberries."

The next stage of the research will be to conduct randomised controlled trials with different dietary sources of anthocyanins to define the optimal dose and sources for hypertension prevention. This will enable the development of targeted public health recommendations on how to reduce blood pressure.


Contact: Simon Dunford
University of East Anglia

Related medicine news :

1. New Bioactive Beverages Available From Tahitian Noni International
2. 14 Human Clinical Studies Prove the Efficacy of Tahitian Noni Bioactive Beverages
3. Adaptogenic Properties of Tahitian Noni Bioactive Beverages Revealed
4. Tahitian Noni Pure is The Most Concentrated Bioactive Beverage Available
5. Tahitian Noni Juice Is Now Tahitian Noni Original Bioactive Beverage
6. Sigma-Aldrich Reaches Agreement to Sell Pfizers Bioactive Small Molecule Compounds
7. $250,000 Bioactive Beverage Challenge Announced By Tahitian Noni International
8. Tahitian Noni Bioactive Beverages™ Are Adaptogenic
9. Five New Tahitian Noni Bioactive Beverages™ Announced
10. Iridoids in Tahitian Noni Bioactive Beverages™ are Found to be Extremely Stable
11. Tahitian Noni Bioactive Beverages™ Contain Iridoids
Post Your Comments:
(Date:11/26/2015)... ... 26, 2015 , ... Pixel Film Studios brings Final Cut ... Vintage. This newly styled ProTrailer pack comes with 30 all-new vintage-inspired designs, with ... users limitless opportunities to stylize and create designs quickly and easily, all within ...
(Date:11/25/2015)... (PRWEB) , ... November 25, 2015 , ... ... accessible for all, Water For Empowerment ™ attracts volunteers together who want ... water by empowering women as key stakeholders in the process. The non-profit launched ...
(Date:11/25/2015)... Cokato, MN (PRWEB) , ... November 25, 2015 ... ... manufacturer, launched offering factory direct sauna parts and accessories. , Sauna accessories ... representative of the bather’s style and personality. From basic styles for the purist ...
(Date:11/25/2015)... ... ... For the first time, Vitalalert is donating half of its earnings to ... between the two groups began in 2014 with Vitalalert pledging a portion of every ... founded in 1954 and is an international Christian-based health organization whose mission is to ...
(Date:11/25/2015)... OK (PRWEB) , ... November 25, 2015 , ... On ... International training center for the Narconon network, announced the release of a new cutting ... 1966 the Narconon organization has been working with drug- and alcohol-addicted individuals with the ...
Breaking Medicine News(10 mins):
(Date:11/25/2015)... YORK , November 25, 2015 ... market of self-monitoring blood glucose devices was valued at ... grow with a CAGR of 5.7% during 2015 - ... geriatric population and increasing prevalence of diabetes. In addition, ... diabetes care is also contributing to the growth of ...
(Date:11/25/2015)... -- Developmental, commercial, and regulatory/legal strategies ... pharmaceutical products, says GBI Research . ... all play a key role in boosting the profitability ... . --> Developmental, commercial, and ... the profitability of pharmaceutical products, says GBI Research ...
(Date:11/25/2015)... Frankreich, November 25, 2015 ... dass sie eine Lizenz für das Patent über eine ... UCBL und ENS-Lyon innehaben, an Enyo Pharma vergeben haben. ... AAP8 ins Leben gerufenen und von Edelris gemeinsam mit ... als ein Behandlungsziel für HBV identifiziert, und es wurden ...
Breaking Medicine Technology: