Effect of Vitamin D Supplementation in Prostate Cancer: A Systematic Review of Randomized Control Trials.
Int J Vitam Nutr Res. 2019 Apr 30:1-13. doi: 10.1024/0300-9831/a000494.
Petrou S1, Mamais I2, Lavranos G3, Tzanetakou IP1, Chrysostomou S1.
- Prostate Cancer and Vitamin D studies
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- Prostate surgery outcomes vary with Vitamin D Receptors– May 2017
- Prostate Cancer might be treated by 4,000 IU of vitamin D and aspirin – RCT 2021
- The risk of 40 diseases at least double with poor Vitamin D Receptor as of July 2019
- Calcitriol category listing has
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The Meta-analysis of Prostate Cancer
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- Variety of Vitamin D forms treat Prostate Cancer – RCT Review April 2019
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Prostate Cancer and Omega-3
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- Men with High Omega-3 ratio 3 times less likely to have high grade prostate cancer – July 2019
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- Prostate Cancer treatment (Vitamin D, Omega-3, Tumeric) RCT ending Dec 2018
Vitamin D is important in many cellular functions including cell cycling and proliferation, differentiation, and apoptosis. Via the induction of cell cycle arrest and/or apoptosis, vitamin D inhibits normal prostatic epithelial cells growth. Review the evidence of the effect of vitamin D supplementation on prostate cancer (PC) biomarkers and patient survival and assess optimal dosage, formulation and duration. Pubmed, Medline and Ebsco Host databases were systematically searched for relevant literature. 8 Randomized Controlled Trials were included in this review. All studies, besides one, were of high methodological quality.
- 4 studies used calcitriol (0,5-45 pg/weekly),
- 2 studies have used vitamin D3 (150-1000 μg/daily) and
- 2 other studies have used 1α-hydroxy Vitamin D2 (10 μg/daily or weekly).
Duration of supplementation varied between 28 days up to 18.3 months.
- Two studies had positive effects on prostate specific antigen (PSA) (p < .05),
- 1 study had a significant positive effect on median survival (p < .05) and
- 1 study showed a significant reduction of vitamin D receptor (VDR) expression (p < .05).
The remaining studies showed negative or no effect on PC characteristics, clinical outcomes and/or survival. Current evidence suggests that vitamin D supplementation in conjunction with standard of care (e.g. chemotherapy, radiation therapy) may confer clinical benefits such as a decrease in serum PSA levels and VDR expression but further research is required to ascertain these results. Calcitriol supplementation in doses ranging from 250-1000 mg for 3-8 weeks or a lower dose of 45 mg for 18.3 months, appear most beneficial regarding outcomes of PC progression and survival.Variety of Vitamin D forms treat Prostate Cancer – RCT Review April 2019
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