Navigation Links
Bioactive compounds in berries can reduce high blood pressure
Date:1/14/2011

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
s.dunford@uea.ac.uk
44-016-035-92203
University of East Anglia
Source:Eurekalert

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:
*Name:
*Comment:
*Email:
(Date:7/21/2017)... ... ... The Margarian Law Firm has filed a class action lawsuit against Dr. ... ginger. Dr. Pepper produces the “Canada Dry” brand of ginger ale products. In Gegham ... Ale claims on its bottle that it is made from real ginger. , When ...
(Date:7/21/2017)... ... July 21, 2017 , ... The Visiting ... the C. R. Bard Foundation, Inc. to support the music therapy ... service available through the nonprofit home care agency. Using evidence-based methods, professionally trained ...
(Date:7/21/2017)... ... July 21, 2017 , ... “Kids aren't born knowing how to regulate ... says Suzanne Tucker, Founder of St. Louis-based positive education company Generation Mindful. To help ... on Monday, July 21st. , The kit uses colorful, engaging and educational illustrations ...
(Date:7/21/2017)... ... July 21, 2017 , ... West Dermatology is pleased to announce ... Beginning July 17, 2017, Ms. Vu will join West Dermatology’s large network of medical ... dermatology, skin cancer , and more. She graduated from the University of Florida ...
(Date:7/21/2017)... ... July 21, 2017 , ... The most ... patients improved quality of life five years after injury, according to research presented ... in Toronto, Ontario, Canada. The study followed patients for five years following surgery. ...
Breaking Medicine News(10 mins):
(Date:7/21/2017)... , July 21, 2017  Endo International plc ... completing a comprehensive review of its manufacturing network, the ... and distribution facilities in Huntsville, Alabama ... take place over the next 12 to 18 months. ... impacted by declining volumes of commoditized products and these ...
(Date:7/15/2017)... 2017 Enterin Inc., a Philadelphia ... (PD), today announced the completion of a $12.7 million Series ... III, as well as the participation of existing investors. ... have the support of New Ventures III and our current ... of the potential of our platform technology to transform the ...
(Date:7/13/2017)... -- New York City-based market research firm Kalorama Information notes seven ... From new products to new costs, to the threat of ... study, Potential Pipeline Disruptors . Among them ... 1.  Age-Driven Growth - True Impact Moment Arriving   ... the growing population and, to a more extreme extent, the ...
Breaking Medicine Technology: