Researchers at the Jonsson Cancer Center at UCLA reported that patients with recurrent prostate cancer who drank pomegranate after surgery or radiation treatment saw their PSA blood content levels double after about 54 months. By comparison, PSA levels in the same patients prior to drinking the daily doses of eight-ounce pomegranate juice accelerated more quickly, doubling their PSA levels in only 15 months.
PSA, or prostate specific antigen, is a protein marker for prostate cancer. The faster PSA levels increase in the blood of men after treatment, the greater their potential for dying of prostate cancer.
"The velocity of the increase in PSA is decreased by 35 percent among those who drank the pomegranate juice," said Allan Pantuck, M.D., associate professor, Department of Urology, David Geffen School of Medicine, UCLA, and lead author of the paper.
"We are hoping that pomegranate juice offers a novel strategy for prolonging the doubling time in men who have been treated for prostate cancer," Dr. Pantuck added.
According to the study, sera from patients after treatment yielded a net decrease of almost 30 percent in the numbers of prostate cancer cells raised in culture. Similarly, cultured sera from these patients decreased cell proliferation by 12 percent, compared to cells grown with sera from the men taken prior to initiation of the pomegranate treatment program. In addition, treated sera induced 17 percent more programmed cell death, or apoptosis, than sera from the men prior to treatment.
Additional exploratory experiments conducted by Dr. Pantuck and his colleagues examined antioxidant characteristics of the fruit juice.'"/>