Showing posts with label polyphenols. Show all posts
Showing posts with label polyphenols. Show all posts

Thursday, January 6, 2011

New Research: Green Tea 'Can Fight Off Dementia’ and ‘Could Guard Against Cancer'

Green tea could protect the brain against Alzheimer’s and other forms of dementia, say scientists.


The drink, which originated in ancient China, may also play a vital role in guarding against cancer, their study suggests.


Scientists at Newcastle University set out to discover whether the protective properties of the tea – previously shown to be present in the freshly brewed form – are still active once it has been digested.


Dr Ed Okello, from the university, said: ‘What was really exciting was that we found when green tea is digested, the resulting chemicals are actually more effective against key triggers of Alzheimer’s.”


The digested compounds also had anti-cancer properties, significantly slowing down the growth of tumour cells which we were using in our experiments.’


Two compounds are known to play a significant role in the development of Alzheimer’s – hydrogen peroxide and a protein known as beta-amyloid.


Previous studies have shown that polyphenols, present in black and green tea, bind with the toxic compounds and protect brain cells.


When ingested, the polyphenols are broken down to produce a mix of compounds and it was these the team tested in their research, published in the academic journal Phytomedicine.


Dr Okello added: ‘Green tea has been used in traditional Chinese medicine for centuries and what we have here provides the scientific evidence why it may be effective against some of the key diseases we face today.


‘There are obviously many factors which together have an influence on diseases such as cancer and dementia – a good diet, plenty of exercise and a healthy lifestyle are all important.


‘But I think it’s fair to say that at least one cup of green tea a day may be good for you and I would certainly recommend it.’


Rebecca Wood, chief executive of the charity Alzheimer’s Research Trust, said: ‘Diet and lifestyle almost certainly play a part in every person’s Alzheimer’s risk.’


From: http://www.dailymail.co.uk/health/article-1344516/Green-tea-fight-dementia-guard-cancer.html



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Thursday, December 9, 2010

Antioxidants May Reduce Inflammation in Alzheimer’s Disease

Previous studies have reported that high levels of homocysteine, a pro-inflammatory protein component, are associated with dementia or Alzheimer’s Disease.


In an effort to determine if antioxidants reduced the inflammation associated with such high homocysteine levels, J.M. Morillas-Ruiz, from Catholic University of San Antonio (Spain), and colleagues enrolled 100 women to participate in a double-blind controlled clinical trial.


Fifty-two of the women were considered generally healthy (no Alzheimer’s) and served as the control group, while the other 48 were diagnosed with Alzeimer’s disease (24 women with early-onset and 24 with moderate Alzheimer’s).


Each of the women was randomly assigned to one of two interventions: Drink an antioxidant beverage rich in polyphenols, or receive a placebo drink, for the eight-month long study. The antioxidant beverage was formulated using apple and lemon concentrate juice, apple and green tea extracts, and vitamins B and C.


The team found that those women who consumed the antioxidant-rich drink experienced an attenuation of homocysteine increase, as compared to the placebo group.


As well, in the subjects with moderate Alzeimer’s disease, the antioxidant beverage was associated with lower average homocysteine level, as compared to the placebo group. The researchers conclude that: “The regular ingestion of polyphenols contained in an antioxidant beverage may decrease [total homocysteine] plasmatic concentrations in Alzheimer's patients.”


From: http://www.worldhealth.net/news/antioxidants-may-reduce-inflammation-alzheimers-di/


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Monday, November 22, 2010

Red Wine as Effective as Popular Drug in Fight Against Type II Diabetes

Drinking a small glass of red wine every day can help treat diabetes, research has found.

Potent “super-food” compounds found in the wine can work as well as a daily dose of medication for people with Type 2 diabetes.

The discovery will come as welcome news to the 2.5 million people in Britain suffering from this form which can cause strokes, heart attacks and blindness.

Scientists discovered antioxidants in red wine can be just as effective as a daily dose of a combative drug.

The polyphenols – biologically active compounds in the wine – operate in a similar way to the drug rosiglitazone which is now banned.

The research was carried out before the ban came into effect.

Experts from Vienna’s University of Natural Resources and Applied Life Sciences found that a 125ml glass each day was enough to provide people with Type 2 diabetes with their daily dose of medication.

As well as the 2.5 million sufferers, a million more are thought to be living undiagnosed with the condition. Type 2 diabetes normally develops in middle age as a result of obesity or an unhealthy lifestyle.

The scientists, whose study is published in the Royal Society of Chemistry journal Food and Function, said the recommended daily dose for treating Type 2 diabetes using rosiglitazone is between 4mg and 8mg.

The team said 100ml of the tested red wines was equivalent to 1.8-18mg of rosiglitazone. It adds to the mounting evidence about the health benefits of a glass or two of red wine.

Rosiglitazone, also known as Avandia and made by GlaxoSmithKline, was taken by 100,000 people in the UK until it was recently banned because of increased risk of heart problems.

But Dr Iain Frame, director of research at Diabetes UK, said: “It is very difficult to see how this limited research will have any benefit to people with Type 2 diabetes. It is a basic study into the chemistry of red wine and has no clinical relevance at this stage. The researchers have made an astonishingly bold suggestion.”

Cheers! Here's to good health

- One 175ml glass a day can lower the risk of heart attack, helping to open blood vessels to prevent clots forming

- It also gives the daily required dose of iron (10mg for men, 15mg for women) and can help bone density in both sexes.

- Red wine has also been shown to preserve eyesight - a compound called reservatrol protects against the formation of damaged blood vessels which can cause blindness

- It can also protect against cancer due to the high polyphenol content in red grape skins

- Research indicates that moderate red wine consumption can have a positive effect on cholesterol levels and blood pressure, the so-called “French” effect

From: http://www.express.co.uk/posts/view/212962/How-red-wine-fights-diabetes

Helpful Links:

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Colloidal Silver Secrets Group on Facebook

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Meet Steve Barwick