Prospective study of serum vitamin D and cancer mortality in the United States.
Freedman DM, Looker AC, Chang SC, Graubard BI.
J Natl Cancer Inst. 2007 Nov 7;99(21):1594-602. Epub 2007 Oct 30.
PMID: 17971526
doi:10.1093/jnci/djm204
CONCLUSIONS: Our results do not support an association between 25(OH)D and total cancer mortality, although there was an inverse relationship between 25(OH)D levels and colorectal cancer mortality.
beta-glucan
A polysaccharide isolated from the cell walls of bacteria, plants, and fungi with immunostimulant and antineoplastic activities. In a solubilized form, beta-glucan binds to a lectin site within complement receptor 3 (CR3) on leukocytes, priming the receptor to trigger cytotoxic degranulation of leukocytes when leukocyte CR3 binds to complement 3 (iC3b)-coated tumors. Thus, the attachment of beta-glucan to CR3 of circulating leukocytes simulates leukocytes to kill iC3b-coated tumor cells in the same way as they kill iC3b-coated yeast. Check for active clinical trials or closed clinical trials using this agent. (NCI Thesaurus)
Table of Contents
Ch. I Is calcidiol an active hormone? 1
Ch. II Vitamin D as a neurosteroid hormone : from neurobiological effects to behavior 29
Ch. III Inhibitors of vitamin D hydroxylases : mechanistic tools and therapeutic aspects 67
Ch. IV Vitamin D analogues as anti-cancer therapies 145
Ch. V Paricalcitol : a vitamin D2 analog with anticancer effects with low calcemic activity 169
Ch. VI Vitamin D use among older adults in U.S. : results form national surveys 1997 to 2002 181
Ch VII Vitamin D deficiency in migrants 199
Vitamin D is a fat-soluble steroid hormone precursor that contributes to the maintenance of normal levels of calcium and phosphorus in the bloodstream. Strictly speaking, it is not a vitamin since human skin can manufacture it, but it is referred to as one for historical reasons. It is often known as calciferol. The major biologic function of vitamin D is to maintain normal blood levels of calcium and phosphorus. Vitamin D aids in the absorption of calcium, helping to form and maintain strong bones. It promotes bone mineralisation in concert with a number of other vitamins, minerals and hormones. Without vitamin D, bones can become thin, brittle, soft or misshapen. Vitamin D prevents rickets in children and osteomalacia in adults -- skeletal diseases that result in defects that weaken bones. This book gathers international research on the leading-edge of the scientific front.
Serum vitamin D concentration and prostate cancer risk: a nested case-control study.
Ahn J, Peters U, Albanes D, Purdue MP, Abnet CC, Chatterjee N, Horst RL, Hollis BW, Huang WY, Shikany JM, Hayes RB; Prostate, Lung, Colorectal, and Ovarian Cancer Screening Trial Project Team.
J Natl Cancer Inst. 2008 Jun 4;100(11):796-804. Epub 2008 May 27.
PMID: 18505967
doi:10.1093/jnci/djn152
CONCLUSION: The findings of this large prospective study do not support the hypothesis that vitamin D is associated with decreased risk of prostate cancer; indeed, higher circulating 25(OH)D concentrations may be associated with increased risk of aggressive disease.
In summary, results from this large prospective study of men who underwent standardized prostate cancer screening in the context of a screening trial do not support the hypothesis that higher serum vitamin D status is associated with decreased risk of prostate cancer. The study showed no association of vitamin D level with nonaggressive disease; however, it raises the possibility that higher vitamin D level may be associated with increased risks for aggressive disease, although a clear monotonic dose-response relationship was lacking. Along with recent reports of adverse associations for higher vitamin D status and risk of pancreatic (32) and esophageal (33,34) cancer, caution should be taken in recommending high doses of vitamin D or sunlight exposure to the general public for prostate cancer prevention. Future analyses are warranted to confirm these results and to further clarify the effects of vitamin D on aggressive prostate cancer.
Invites you and a friend to special Hands on Tutorial demonstrating how to achieve a flawless look as a recognized industry leader, Michael is highly sought after and offers limited engagements.
Cached
