A multicountry ecologic study of risk and risk reduction factors for prostate cancer mortality.
Grant WB.
Eur Urol. 2004 Mar;45(3):271-9.
PMID: 15036670
CONCLUSIONS: These results are consistent with insulin-like growth factor-I (IGF-I), being an important risk factor for prostate cancer, with alcohol and calcium being less important risk factors, and with allium family vegetables, and, to a lesser extent, vitamin D being important risk reduction factors. These results should provide guidance for additional studies on dietary and environmental links to prostate cancer.
Ecological studies of ultraviolet B, vitamin D and cancer since 2000.
Grant WB, Mohr SB.
Ann Epidemiol. 2009 Jul;19(7):446-54. Epub 2009 Mar 9.
PMID: 19269856
CONCLUSION: These findings provide strong evidence that vitamin D status plays an important role in controlling the outcome of cancer. Support for the UVB-vitamin D-cancer theory is now scientifically strong enough to warrant use of vitamin D in cancer prevention, and as a component of treatment. More research studies would help to explore whether there are benefits beyond the substantial effects that have been observed.
Ecological Studies Of Ultraviolet B, Vitamin D And Cancer Since 2000.
Grant WB, Mohr SB.
Ann Epidemiol. 2009 Mar 6. [Epub ahead of print]
PMID: 19269856
doi:10.1016/j.annepidem.2008.12.014
The association of solar ultraviolet B (UVB) with reducing risk of cancer: multifactorial ecologic analysis of geographic variation in age-adjusted cancer mortality rates.
Grant WB, Garland CF.
Anticancer Res. 2006 Jul-Aug;26(4A):2687-99.
PMID: 16886679
CONCLUSION: These results provide additional support for the hypothesis that solar UVB, through photosynthesis of vitamin D, is inversely-associated with cancer mortality rates, and that various other cancer risk-modifying factors do not detract from this link. It is thought that sun avoidance practices after 1980, along with improved cancer treatment, led to reduced associations in the latter period. The results regarding solar UVB should be studied further with additional observational and intervention studies of vitamin D indices and cancer incidence, mortality and survival rates.