Vegetables and fruits have long been known to reduce the risk of certain cancers. Based on previous research, the American Cancer Society recommends that we consume five fruits and vegetables every day.
In early studies, researchers from Ohio State University found that black raspberries protect us from esophageal cancer by reducing the oxidative stress generated by Barrett's esophagus, a precancerous condition commonly called gastroesopagus reflux disease. Esophagus is a long tunnel that connects the esophagus to the stomach. Reflux disease causes stomach acid continuously soaring upwards towards the esophagus.
"Especially in patients with Barrett, reflux in the stomach and bile acids contribute to the occurrence of oxidative damage. Thus, our hypothesis is that the foods that contain protective ingredients such as antioxidants, vitamins, minerals and other phytochemicals may be restoring oxidative balance, "says Laura Kresty, principal investigator.
People with Barrett's esophagus disease is usually 30 to 40 times the usual going to esophageal cancer risk with life expectancy up to five years only 15 percent.
The team gave 32 to 45 grams of black raspberries daily for six months to 20 patients with Barrett's esophagus. They analyze changes in the blood, urine and tissue before, during, and after treatment and found lower levels of levels of chemical markers of oxidative stress in both urine samples and tissue samples.
In previous research, black raspberries are able to reduce the risk of mouth cancer, esophageal, and colon. Dietitian, Wendy Demark-Wahnefried, professor of behavioral science at MD Anderson Cancer Center, do the University of Texas, Huoston, said that he felt better suited to advise patients with Barrett's to eat black raspberries. "This will not hurt," said Wendy.
Meanwhile, research conducted at the Roswell Park Cancer Institute in Buffalo, New York, the United States found that broccoli and some fresh vegetables can be used to fight bladder cancer.
By using mice, the team headed by Dr. Yuesheng Zhang, professor of cancer experts this demonstrates that broccoli extracts can mengngari emergence of bladder cancer by 70 percent.
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