Vitamin D news

Vitamin D supplementation reduces levels of Ki67 in prostate cancer cells

02 April 2012

New research presented at the AACR annual meeting 2012 held March 31st-April 4th demonstrates vitamin D may slow the growth of prostate cancer. Reinhold Vieth, Ph.D., professor at the University of Toronto in Toronto, Ontario, Canada randomly assigned 66 men scheduled for radical prostatectomy to daily vitamin D in doses of 400, 10,000 or 40,000 IU 3-8 weeks before surgery. Calcitriol levels increased with each dose of vitamin D. The higher the calcitriol levels, the lower prostate levels of Ki67, a protein which indicates prostate cancer cell growth. 

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Page last edited: 30 April 2012