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View Full Version : Eating blueberries slashes colon cancer risk by 57 percent, animal study finds


abdulhakeem
01-08-07, 01:58 AM
Thursday, July 26, 2007
by: Mike Adams

A compound found in blueberries shows promise of preventing colon cancer, according to a new study. Scientists at Rutgers University and the U.S. Department of Agriculture conducted a joint study on animals, and found that the compound -- called pterostilbene -- lessened pre-cancerous lesions and inhibited genes involved in inflammation. Researchers presented the study at the American Chemical Society's annual meeting in March.

"This study underscores the need to include more berries in the diet, especially blueberries," said study leader Bandaru Reddy, Ph.D., a professor in the chemical biology department at Rutgers. Although the blueberry compound won't cure colon cancer, it represents a strategy for preventing the disease naturally, said Reddy, who specializes in studying the relationship between nutrition and colon cancer.

The researchers studied 18 rats in which colon cancer had been induced in a manner similar to human colon cancer development. All of the animals were placed on a balanced diet, with half of the animals' diets supplemented with pterostilbene. After eight weeks, the rats fed pterostilbene had 57 percent fewer pre-cancerous colon lesions compared to the control group. The researchers also noted that pterostilbene inhibited certain genes involved in inflammation, considered a colon cancer risk factor.

Colon cancer is the second leading cause of cancer death in the U.S. It has been linked to a high intake of saturated fats and calories common in Western diets. Pterostilbene may be able to reverse this process, possibly by lowering lipids, Reddy said.

Reddy cited a recent study by co-author Agnes Rimando of the Department of Agriculture. Rimando demonstrated that blueberries, particularly their skins, can lower cholesterol when fed to animals.

Some thirty different species of blueberries are native to North America. The berries are rich in anthocyanins, widely recognized for their antioxidant qualities. Blueberries are also a good source of ellagic acid, which blocks metabolic pathways that can lead to cancer.

http://www.newstarget.com/021951.html

abdulhakeem
01-08-07, 02:00 AM
Blueberries tackle bowel cancer

Monday, 26 March 2007

A compound in blueberries may be good for preventing bowel cancer, US scientists believe.

The key ingredient, pterostilbene, is a natural antioxidant and mops up highly reactive molecules called free radicals that can trigger cancer growth.

Similar antioxidants have already been identified in grapes and red wine, the American Chemical Society heard.

Other work, also in mice, suggests pterostilbene may be good for lowering blood cholesterol too.

Berry good

The researchers, from Rutgers University and the US Department of Agriculture, suggest the compound could be put into a pill.

Lead author Dr Bandaru Reddy said that, in the meantime, their work showed the need to include more berries in the diet, "especially blueberries."

Rats given a cancer-causing agent but then fed pterostilbene had far fewer pre-cancers in their bowels than other rats.

The blueberry compound also reduced inflammation and the rate of cell division in the bowel, which are both considered to be cancer risk factors.

Although experts do not know the exact causes of colon cancer, the disease has been linked to a high intake of saturated fats and calories.

Dr Reddy and colleagues believe pterostilbene may be able to reverse this process, possibly by lowering fat levels like cholesterol.

Experts already recommend eating plenty of fruit and vegetables - at least five portions a day - to guard against cancer and other diseases.

Pterostilbene is also found in cranberries, sparkleberries, lingonberries and grapes.

Ed Yong of Cancer Research UK said: "While pterostilbene could lower the risk of bowel cancers in rats, it is unclear if it will produce the same benefits in humans.

"More research will help to determine whether this chemical could have a role in the fight against cancer."

"For the moment, the best advice is to eat a healthy, balanced diet rather than rely on specific 'superfoods,'" he added.

http://news.bbc.co.uk/2/hi/health/6480319.stm

Te'oma
01-08-07, 06:00 AM
I wonder if huckleberries fall into the same category. I pick them as soon as they are in season and eat as many as I can. They are sooo much better then plain old blueberries :D

Firdes
01-08-07, 08:04 AM
I love freshly juiced blueberries and oranges :up:

PiElle2
01-08-07, 08:37 AM
I tot blueberries' good for the eyes...???

ummbilal
01-08-07, 08:50 AM
are they as effective when in a muffin???

ummbilal
01-08-07, 08:51 AM
I wonder if huckleberries fall into the same category. I pick them as soon as they are in season and eat as many as I can. They are sooo much better then plain old blueberries :D

subhannallah bro, i've never heard of huckleberries, what do they taste like?
blueberries r pretty yummy and if they are better i am quite intrigued.