Broccoli Sprouts Reduce Bladder Cancer Risk – A Study

Broccoli>The laboratory examinations made by US researchers on rats have found that a concentrated extract of freeze-dried broccoli sprouts reduces the growth of bladder tumors by more than half.

Dr. Yuesheng Zhang of Roswell Park Cancer Institute in Buffalo, N.Y. stated that the new outcome supports human epidemiologic studies, which advise eating cruciferous vegetables such as broccoli is linked with reduced risk for bladder cancer.

In a declaration, senior researcher Dr. Yuesheng Zhang, a professor of oncology at Roswell Park Cancer Institute said, “Although this is an animal study, it provides potent evidence that eating vegetables is beneficial in bladder cancer prevention.”

There is strong proof that the protective result of cruciferous vegetables including broccoli, cabbage, sauliflower, kale, bok choy, Brussels sprouts and collard greens derives at least partly from isothyiocyanates (ITCs), a group of phytochemicals.

“The bladder is particularly responsive to this group of natural chemicals,” Zhang said.

Zhang and his fellow workers examined the freeze-dried broccoli sprout extract to stop bladder tumors in rats. One group of rats did not receive the extract, whereas two other groups of rats were given either a low or high dose of the extract in their food, starting two weeks earlier than they had the cancer-causing chemical.

The study found that the group got the maximum dose of extract had an average number of tumors per animal of 0.46 and the majority of tumors were very small in size.

The study findinds will be published in the March issue of Cancer Research.

"Epidemiologic studies have shown that dietary ITCs and cruciferous vegetable intake are inversely associated with bladder cancer risk in humans," Zhang said in a statement. "It is possible that ITC doses much lower than those given to the rats in this study may be adequate for bladder cancer prevention."