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Tomato Sauce May Reduce Prostate Cancer Risk

Date:
December 24, 2001
Source:
University Of Illinois At Chicago
Summary:
The adage "an apple a day keeps the doctor away" may be facing stiff competition from tomatoes. Recent research at the University of Illinois at Chicago suggests that lycopene, an antioxidant found in large amounts in tomatoes, may play a significant role in preventing and treating prostate cancer. The findings appear in the Dec. 19 issue of the Journal of the National Cancer Institute.

The adage "an apple a day keeps the doctor away" may be facing stiff competition from tomatoes.

Recent research at the University of Illinois at Chicago suggests that lycopene, an antioxidant found in large amounts in tomatoes, may play a significant role in preventing and treating prostate cancer. The findings appear in the Dec. 19 issue of the Journal of the National Cancer Institute.

Phyllis Bowen, associate professor of human nutrition, along with Dr. Longwen Chen, former research associate, and their UIC colleagues, studied a group of 32 prostate cancer patients who consumed one tomato sauce-based pasta dish daily for three weeks before their scheduled prostatectomies.

Levels of oxidative DNA damage and prostate specific antigen, or PSA (an enzyme that is an important marker for the diagnosis of prostate cancer), were measured before and after the pasta regimen. Previous studies suggest that human prostate tissue is particularly vulnerable to oxidative DNA damage, which occurs when oxygen molecules in the tissue attack the DNA, creating cellular instability. This instability can lead to the formation of malignant tumors.

A high level of lycopene was present in the prostate tissues after the intervention and surgery and oxidative DNA damage was reduced by 28 percent, a statistically significant finding. PSA levels were reduced by 17.5 percent, but the researchers said more studies are needed to determine whether lycopene is responsible for the PSA reduction.

Although other researchers have investigated lycopene in previous studies, this is the first study of its kind yielding statistically significant results with a whole food regimen versus lycopene supplements.

"We're encouraged by the results of this study," Bowen said. "The lower prostate oxidative DNA damage in men consuming tomato sauce suggests a role for tomato sauce and possibly for lycopene in the prevention and treatment of prostate cancer."

However, Bowen noted, this study had a small sample size. A larger study is in progress involving patients with and without diagnosed prostate cancer.

According to the American Cancer Society, prostate cancer is the second leading cause of cancer-related deaths in American men (lung cancer ranks first). At the start of this year, the society estimated that 198,000 men would be diagnosed with prostate cancer, with 31,500 deaths.

For more information about UIC, visit http://www.uic.edu


Story Source:

The above story is based on materials provided by University Of Illinois At Chicago. Note: Materials may be edited for content and length.


Cite This Page:

University Of Illinois At Chicago. "Tomato Sauce May Reduce Prostate Cancer Risk." ScienceDaily. ScienceDaily, 24 December 2001. <www.sciencedaily.com/releases/2001/12/011224083820.htm>.
University Of Illinois At Chicago. (2001, December 24). Tomato Sauce May Reduce Prostate Cancer Risk. ScienceDaily. Retrieved September 16, 2014 from www.sciencedaily.com/releases/2001/12/011224083820.htm
University Of Illinois At Chicago. "Tomato Sauce May Reduce Prostate Cancer Risk." ScienceDaily. www.sciencedaily.com/releases/2001/12/011224083820.htm (accessed September 16, 2014).

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