01.feb.07
Sydney Morning Herald
http://www.smh.com.au/news/World/Grape-juice-good-for-the-heart-study/2007/02/01/1169919450073.html
Researchers at the Universite Louis Pasteur de Strasbourg were cited as reporting in the journal Cardiovascular Research that Concord grape juice seems to have the same protective effect against heart disease as red wine.
Dr Valerie Schini-Kerth, lead author of the study, was quoted as saying, "Grape juice can have a similar effect (against heart disease) as red wine but without the alcohol. That is a very important message."
Schini-Kerth and her team found that polyphenols in Concord grape juice activate endothelial cells to produce nitric oxide which helps to protect against cardiovascular disease and to maintain healthy blood vessels and blood pressure.
Polyphenols work the same way in red wine and in grape juice.
The amount of polyphenols in grape juice, as in red wine, depends on the type of grape used and how it is processed.