Positive Data on PubMed.gov on our GCP
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Department of Urology, College of Physicians and Surgeons of Columbia University, New York, NY, USA.
It has been reported that genistein, an isoflavone used in soybeans, has antiprostate cancer effects. Genistein Combined Polysaccharide (GCP trade mark; AMino Up, Sapporo, Japan), a nutritional supplement manufactured in Japan, is composed of genistein and a polysaccharide obtained from basidiomycetes (mycelia) that grows in a variety of mushrooms.
We report a case of a patient with a biopsy proven prostate cancer showing clinical and pathologic evidence of regression following administration of GCP. The patient was enrolled in an Institutional Review Board (IRB)-approved protocol and received GCP for 6 weeks prior to radical prostatectomy.
The patient’s prostate-specific antigen (PSA) decreased from an initial value of 19.7 to 4.2 ng/mL after 44 days of low-dose GCP. No cancer was identified in the radical prostatectomy specimen and no side effects were observed in this patient.
This case suggests that GCP, which has shown potent inhibitory effects against prostate cancer in vitro, may have some potential activity in the treatment and prevention of prostate cancer.
- [PubMed – indexed for MEDLINE]