Circulating Folate and Vitamin B12 and Risk of Prostate Cancer:A Collaborative Analysis of Individual Participant Data from Six Cohorts Including 6875 Cases and 8104 Controls
Autor: | Alison J, Price, Ruth C, Travis, Paul N, Appleby, Demetrius, Albanes, Aurelio, Barricarte Gurrea, Tone, Bjørge, H Bas, Bueno-de-Mesquita, Chu, Chen, Jenny, Donovan, Randi, Gislefoss, Gary, Goodman, Marc, Gunter, Freddie C, Hamdy, Mattias, Johansson, Irena B, King, Tilman, Kühn, Satu, Männistö, Richard M, Martin, Klaus, Meyer, David E, Neal, Marian L, Neuhouser, Ottar, Nygård, Par, Stattin, Grethe S, Tell, Antonia, Trichopoulou, Rosario, Tumino, Per Magne, Ueland, Arve, Ulvik, Stefan, de Vogel, Stein Emil, Vollset, Stephanie J, Weinstein, Timothy J, Key, Naomi E, Allen |
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Jazyk: | angličtina |
Rok vydání: | 2016 |
Předmět: |
Male
Risk Folate Pooled data meta-analysis Vitamin B-12 Urology Folic Acid Deficiency Cohort Studies Folic Acid High grade Urologi och njurmedicin Odds Ratio Humans Urology and Nephrology Editorial by Mary K. Downer Erin L. Van Blarigan Sam F. Peisch and Meir J. Stampfer on pp. 952–953 of this issue Aged Prostate cancer Vitamin B12 Platinum Priority – Prostate Cancer Prostatic Neoplasms Hexetidine Fear Middle Aged Prospective cohort Vitamin B 12 Logistic Models Centre for Surgical Research Case-Control Studies ICEP |
Zdroj: | Price, A J, Travis, R C, Appleby, P N, Albanes, D, Barricarte Gurrea, A, Bjørge, T, Bueno-de-Mesquita, H B, Chen, C, Donovan, J, Gislefoss, R, Goodman, G, Gunter, M, Hamdy, F C, Johansson, M, King, I B, Kühn, T, Männistö, S, Martin, R M, Meyer, K, Neal, D E, Neuhouser, M L, Nygård, O, Stattin, P, Tell, G S, Trichopoulou, A, Tumino, R, Ueland, P M, Ulvik, A, de Vogel, S, Vollset, S E, Weinstein, S J, Key, T J & Allen, N E 2016, ' Circulating Folate and Vitamin B12 and Risk of Prostate Cancer : A Collaborative Analysis of Individual Participant Data from Six Cohorts Including 6875 Cases and 8104 Controls ', European Urology, vol. 70, no. 6, pp. 941-951 . https://doi.org/10.1016/j.eururo.2016.03.029 European Urology |
Popis: | Background Folate and vitamin B12 are essential for maintaining DNA integrity and may influence prostate cancer (PCa) risk, but the association with clinically relevant, advanced stage, and high-grade disease is unclear. Objective To investigate the associations between circulating folate and vitamin B12 concentrations and risk of PCa overall and by disease stage and grade. Design, setting, and participants A study was performed with a nested case–control design based on individual participant data from six cohort studies including 6875 cases and 8104 controls; blood collection from 1981 to 2008, and an average follow-up of 8.9 yr (standard deviation 7.3). Odds ratios (ORs) of incident PCa by study-specific fifths of circulating folate and vitamin B12 were calculated using multivariable adjusted conditional logistic regression. Outcome measurements and statistical analysis Incident PCa and subtype by stage and grade. Results and limitations Higher folate and vitamin B12 concentrations were associated with a small increase in risk of PCa (ORs for the top vs bottom fifths were 1.13 [95% confidence interval (CI), 1.02–1.26], ptrend = 0.018, for folate and 1.12 [95% CI, 1.01–1.25], ptrend = 0.017, for vitamin B12), with no evidence of heterogeneity between studies. The association with folate varied by tumour grade (pheterogeneity 0.05). Use of single blood-sample measurements of folate and B12 concentrations is a limitation. Conclusions The association between higher folate concentration and risk of high-grade disease, not evident for low-grade disease, suggests a possible role for folate in the progression of clinically relevant PCa and warrants further investigation. Patient summary Folate, a vitamin obtained from foods and supplements, is important for maintaining cell health. In this study, however, men with higher blood folate levels were at greater risk of high-grade (more aggressive) prostate cancer compared with men with lower folate levels. Further research is needed to investigate the possible role of folate in the progression of this disease. Take Home Message Higher folate concentration was associated with an increased risk of high-grade disease that was not evident for low-grade disease. This finding suggests a possible role for folate in the progression of clinically relevant prostate cancer and warrants further investigation. |
Databáze: | OpenAIRE |
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