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Matti Narkia

Season of diagnosis is a prognostic factor in Hodgkin's lymphoma: a possible role of su... - 0 views

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    SSeason of diagnosis is a prognostic factor in Hodgkin's lymphoma: a possible role of sun-induced vitamin D. Porojnicu AC, Robsahm TE, Ree AH, Moan J. Br J Cancer. 2005 Sep 5;93(5):571-4. PMID: 16136030 doi:10.1038/sj.bjc.6602722 Epidemiological data for this period indicate that season of diagnosis is a strong prognostic factor for Hodgkin's lymphoma, with approximately 20% lower case fatality for patients diagnosed during autumn vs winter diagnosis (RR = 0.783, 95% CI,-0.62 to 0.99; P = 0.041). Notably, the improved autumnal survival rate was higher than 60% (RR = 0.364, 95% CI, -0.15 to 0.87; P = 0.025) for patients younger than 30 years. This finding may be related to higher endogenous levels of vitamin D in autumn, with a favourable influence on the conventional therapy. In conclusion, we have found that the prognosis of Hodgkin's lymphoma is significantly correlated with the season of diagnosis, particularly for patients younger than 30 years. This seasonal effect is presumably due to the vitamin D3 synthesis in skin during sun exposure. The present findings should encourage further investigations of the possible adjuvant role of vitamin D derivatives in cancer therapy
Matti Narkia

Association between serum 25(OH)D and death from prostate cancer - British Journal of C... - 0 views

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    Association between serum 25(OH)D and death from prostate cancer. Tretli S, Hernes E, Berg JP, Hestvik UE, Robsahm TE. Br J Cancer. 2009 Feb 10;100(3):450-4. Epub 2009 Jan 20. PMID: 19156140 doi:10.1038/sj.bjc.6604865 The serum level of 25(OH)D may be involved in disease progression and is a potential marker of prognosis in patients with prostate cancer.
Matti Narkia

Prospective study of predictors of vitamin D status and survival in patients with color... - 0 views

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    Prospective study of predictors of vitamin D status and survival in patients with colorectal cancer K Ng, B M Wolpin, J A Meyerhardt, K Wu, A T Chan, B W Hollis, E L Giovannucci, M J Stampfer, W C Willett and C S Fuchs Br J Cancer 101: 916-923; advance online publication, August 18, 2009; doi:10.1038/sj.bjc.6605262
Matti Narkia

Prospective study of serum 25(OH)-vitamin D concentration and risk of oesophageal and g... - 0 views

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    Prospective study of serum 25(OH)-vitamin D concentration and risk of oesophageal and gastric cancers. Chen W, Dawsey SM, Qiao YL, Mark SD, Dong ZW, Taylor PR, Zhao P, Abnet CC. Br J Cancer. 2007 Jul 2;97(1):123-8. Epub 2007 Jun 5. PMID: 17551495 We prospectively examined the relation between pretrial serum vitamin D status and risk of oesophageal and gastric cancers among subjects who developed cancer over 5.25 years of follow-up, including 545 oesophageal squamous cell carcinomas (ESCC), 353 gastric cardia adenocarcinomas, 81 gastric noncardia adenocarcinomas, and an age- and sex-stratified random sample of 1105 subjects. We found no associations for gastric cardia or noncardia adenocarcinoma. Among subjects with low vitamin D status, higher serum 25(OH)D concentrations were associated with significantly increased risk of ESCC in men, but not in women. Further refinements of the analysis did not suggest any factors, which could explain this unexpected result. In conclusion, we found a direct association between higher serum 25(OH)D concentration and increased risk of ESCC in men but not women in a large population-based prospective cohort study from rural China. We found no association with risk of gastric cardia or noncardia adenocarcinoma in either sex. Greater than 50% of our cohort had an inadequate serum 25(OH)D concentration, yet higher concentrations were associated with increased risk of ESCC compared to lower concentrations.
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