Prostate cancer patients in Jamaica were 5X more likely to die of PC if low vitamin D - Sept 2022

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Vitamin D Deficiency at Diagnosis Increases All-Cause and Prostate Cancer-specific Mortality in Jamaican Men

022 Jan-Dec;29 doi: 10.1177/10732748221131225.
Donovan McGrowder 1, Marshall K Tulloch-Reid 2, Kathleen C M Coard 1, Afette M McCaw-Binns 3, Trevor S Ferguson 2, William Aiken 4, Leroy Harrison 5, Simon G Anderson 6, Maria D Jackson 3

Background: 25 hydroxyvitamin D [25(OH)D] and serum calcium have been associated with incident prostate cancer (PCa). However, there is limited data on whether these metabolites predict survival in men of African descent, a population disproportionately affected by PCa. We studied the relationship of 25(OH)D at PCa diagnosis with all-cause and cancer-specific mortality among Jamaican men and examined whether serum calcium modified any associations.

Methods: Serum 25(OH)D from 152 Jamaican men with incident PCa within the Prostate Cancer Risk Evaluation (PROSCARE) study were re-evaluated approximately 11 years after enrollment. 25(OH)D analyses were stratified using the using Holick criteria. PCa-specific and all-cause mortality were examined in Kaplan-Meier survival curves and Cox regression models adjusted for age, body mass index (BMI), smoking and Gleason score. Restricted cubic splines evaluated nonlinear associations. Serum calcium was assessed as an effect modifier of the association between 25(OH)D and mortality.

Results: Of cases with available 25(OH)D, 64 men with PCa survived, 38 deaths were PCa specific and 36 died of other causes. At baseline, 9.9% of cases were vitamin D deficient and 61.2% were vitamin D sufficient. Compared to 25(OH)D sufficient men, those with 25(OH)D <20.0 ng/mL concentrations were associated with higher PCa-specific mortality (adjusted HR, 4.95; 95% CI, 1.68, 14.63, P = .004) and all-cause mortality (adjusted HR, 2.40; 95%CI, 1.33, 4. 32, P = .003). Serum calcium was not associated with survival and did not modify any associations with 25(OH)D.

Conclusions: 25(OH)D deficiency at PCa diagnosis predicted decreased survival for overall and PCa-specific cancer in Caribbean men of African ancestry.
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VitaminDWiki - 9 studies in both categories Prostate Cancer and Skin - Dark

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VitaminDWiki - 12 studies in both categories Dark Skin and Mortality

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VitaminDWiki - 7 studies in both categories Dark Skin and Vitamin D Receptor

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Dark-skin with CANCER in title (31 as of Oct 2022)

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VitaminDWiki - Overview Prostate Cancer and Vitamin D contains:

All items in category Prostate Cancer and Vitamin D 103 items

Examples

• Overview Prostate Cancer and Vitamin D
• Prostate Cancer long term survival 1.7 X more likely if high level of vitamin D – Jan 2016
• High PSA readings with Prostate Cancer 4 times more likely if poor Vitamin D receptor – March 2016
• Aggressive Prostate Cancer in blacks with low vitamin D – 7X more likely if added Calcium – Jan 2017
  • Probably better than 40% reduction if 40 ng of Vitamin D and minimize Calcium
• Prostate cancer in black men is 1.6 times more likely if a poor Vitamin D Receptor – Feb 2017
  • Probably better than 40% reduction if 40 ng of Vitamin D and improve Receptor activation (8 ways)
• Low-Grade Prostate Cancer 70 percent less likely to progress if good level of Omega-3 – June 2018
  • Might prevent Prostate Cancer with Omega-3 and Vitamin D
• Prostate Cancer PSA reduced by 60 ng of Vitamin D, Vitamin B complex, Omega-3, Curcumin and diet – June 2021
• The use of Vitamin D to prevent prostate cancer doubled in a decade – May 2019
• Prostate cancer patients in Jamaica were 5X more likely to die of PC if low vitamin D - Sept 2022
• Can take 40,000 IU of vitamin D daily before prostate cancer surgery – RCT March 2013

The Meta-analysis of Prostate Cancer

Vitamin D prevents/treats Prostate Cancer much better when there is not excess Calcium
Prostate cancer risk increase with Vitamin D (other studies disagree) – meta-analysis Jan 2018 prevention
Prostate cancer reduced when 4000 IU vitamin D was added– Hollis RCT April 2015 treatment
7X increase in stage IV Prostate Cancer survival when vitamin D greater than 32 ng – May 2013
Never too late to have vitamin D - loading dose is great before Prostate Surgery