Abstract
Background
Vitamin B6 is an important enzymatic cofactor in pathways relevant for the development of pancreatic cancer. In order to evaluate vitamin B6 as a preventive factor for pancreatic cancer, a biomarker approach is needed to overcome the limitations inherent in self-reported dietary information.
Methods
To determine whether levels of serum B6 vitamers, including pyridoxal 5′-phosphate (PLP), pyridoxal (PL), 4-pyridoxic acid (PA), and the PA/(PLP + PL) ratio (PAr), were associated with risk of pancreatic cancer, two nested case–control studies of 187 incident pancreatic cancer cases and 258 individually matched controls were conducted within two prospective cohorts of 81,501 participants in Shanghai, China, and Singapore. PLP, PL, and PA were quantified in pre-diagnostic serum samples. Odds ratios and 95% confidence intervals (CIs) were calculated using conditional logistic regression with adjustment for potential confounders.
Results
The median (5th–95th percentiles) concentrations of serum PLP among control subjects of the Shanghai and Singapore cohorts were 25.7 (10.0–91.7) nmol/L and 58.1 (20.8–563.0) nmol/L, respectively. In pooled analyses, high serum PLP was associated with a reduced risk of pancreatic cancer (P for trend = 0.048); the adjusted odds ratio for the highest category of PLP (>52.4 nmol/L) was 0.46 (95% CI 0.23, 0.92) compared to vitamin B6 deficiency (<20 nmol/L). No associations were found for serum PL, PA, or PAr with pancreatic cancer risk.
Conclusions
Higher concentrations of PLP may protect against the development of pancreatic cancer. The protective effect may be more apparent in populations with low concentrations of circulating vitamin B6.
Similar content being viewed by others
References
Ferlay J, Soerjomataram I, Dikshit R et al (2015) Cancer incidence and mortality worldwide: sources, methods and major patterns in GLOBOCAN 2012. Int J Cancer 136:E359–E386
Lynch SM, Vrieling A, Lubin JH et al (2009) Cigarette smoking and pancreatic cancer: a pooled analysis from the pancreatic cancer cohort consortium. Am J Epidemiol 170:403–413
Bracci PM (2012) Obesity and pancreatic cancer: overview of epidemiologic evidence and biologic mechanisms. Mol Carcinog 51:53–63
Jansen RJ, Robinson DP, Stolzenberg-Solomon RZ et al (2011) Fruit and vegetable consumption is inversely associated with having pancreatic cancer. Cancer Causes Control 22:1613–1625
Chan JM, Wang F, Holly EA (2005) Vegetable and fruit intake and pancreatic cancer in a population-based case-control study in the San Francisco bay area. Cancer Epidemiol Biomarkers Prev 14:2093–2097
US Department of Agriculture, Agricultural Research Service, Nutrient Data Laboratory (2016) USDA National Nutrient Database for Standard Reference, Release 28 (Slightly revised). Version Current: May 2016. http://www.ars.usda.gov/sp2UserFiles/Place/80400525/Data/SR/SR28/sr28_doc.pdf
Huang JY, Butler LM, Wang R, Jin A, Koh WP, Yuan JM (2016) Dietary intake of one-carbon metabolism-related nutrients and pancreatic cancer risk: the Singapore Chinese Health Study. Cancer Epidemiol Biomarkers Prev 25:417–424
Larsson SC, Giovannucci E, Wolk A (2007) Methionine and vitamin B6 intake and risk of pancreatic cancer: a prospective study of Swedish women and men. Gastroenterology 132:113–118
Stolzenberg-Solomon RZ, Pietinen P, Barrett MJ, Taylor PR, Virtamo J, Albanes D (2001) Dietary and other methyl-group availability factors and pancreatic cancer risk in a cohort of male smokers. Am J Epidemiol 153:680–687
Gong Z, Holly EA, Bracci PM (2009) Intake of folate, vitamins B6, B12 and methionine and risk of pancreatic cancer in a large population-based case-control study. Cancer Causes Control 20:1317–1325
Choi SW, Friso S (2012) Vitamins B6 and cancer. Subcell Biochem 56:247–264
Albersen M, Bosma M, Luykx JJ et al (2014) Vitamin B-6 vitamers in human plasma and cerebrospinal fluid. Am J Clin Nutr 100:587–592
Ueland PM, Ulvik A, Rios-Avila L, Midttun O, Gregory JF (2015) Direct and functional biomarkers of vitamin B6 status. Annu Rev Nutr 35:33–70
Ulvik A, Midttun O, Pedersen ER, Eussen SJ, Nygard O, Ueland PM (2014) Evidence for increased catabolism of vitamin B-6 during systemic inflammation. Am J Clin Nutr 100:250–255
Greer JB, Whitcomb DC (2009) Inflammation and pancreatic cancer: an evidence-based review. Curr Opin Pharmacol 9:411–418
Schernhammer E, Wolpin B, Rifai N et al (2007) Plasma folate, vitamin B6, vitamin B12, and homocysteine and pancreatic cancer risk in four large cohorts. Cancer Res 67:5553–5560
Chuang SC, Stolzenberg-Solomon R, Ueland PM et al (2011) A U-shaped relationship between plasma folate and pancreatic cancer risk in the European Prospective Investigation into Cancer and Nutrition. Eur J Cancer 47:1808–1816
Stolzenberg-Solomon RZ, Albanes D, Nieto FJ et al (1999) Pancreatic cancer risk and nutrition-related methyl-group availability indicators in male smokers. J Natl Cancer Inst 91:535–541
Yuan JM, Ross RK, Wang XL, Gao YT, Henderson BE, Yu MC (1996) Morbidity and mortality in relation to cigarette smoking in Shanghai, China. A prospective male cohort study. JAMA 275:1646–1650
Yuan JM, Stram DO, Arakawa K, Lee HP, Yu MC (2003) Dietary cryptoxanthin and reduced risk of lung cancer: the Singapore Chinese Health Study. Cancer Epidemiol Biomarkers Prev 12:890–898
Hankin JH, Stram DO, Arakawa K et al (2001) Singapore Chinese Health Study: development, validation, and calibration of the quantitative food frequency questionnaire. Nutr Cancer 39:187–195
Odegaard AO, Pereira MA, Koh WP, Arakawa K, Lee HP, Yu MC (2008) Coffee, tea, and incident type 2 diabetes: the Singapore Chinese Health Study. Am J Clin Nutr 88:979–985
Odegaard AO, Koh WP, Arakawa K, Yu MC, Pereira MA (2010) Soft drink and juice consumption and risk of physician-diagnosed incident type 2 diabetes: the Singapore Chinese Health Study. Am J Epidemiol 171:701–708
Parkin DM, Whelan SL, Ferlay J, Teppo L, Thomas DB (eds) (2002) Cancer incidence in five continents vol. VIII. IARC Publication No. 155. https://www.iarc.fr/en/publications/pdfs-online/epi/sp155/CI5V8.pdf. Accessed Nov 2016
Yuan JM, Koh WP, Murphy SE et al (2009) Urinary levels of tobacco-specific nitrosamine metabolites in relation to lung cancer development in two prospective cohorts of cigarette smokers. Cancer Res 69:2990–2995
Midttun O, Kvalheim G, Ueland PM (2013) High-throughput, low-volume, multianalyte quantification of plasma metabolites related to one-carbon metabolism using HPLC-MS/MS. Anal Bioanal Chem 405:2009–2017
Breslow N, Day N (1980) Statistical methods in cancer research, vol 1: the analysis of case–control studies. IARC: IARC Scientific Pub No. 32, Lyon
Institute of Medicine (US) Standing Committee on the Scientific Evaluation of Dietary Reference Intakes and its Panel on Folate OBV, and Choline (1998) Dietary reference intakes for thiamin, riboflavin, niacin, vitamin B6, folate, vitamin B12, pantothenic acid, biotin, and choline. Washington (DC)
Levey AS, Stevens LA, Schmid CH et al (2009) A new equation to estimate glomerular filtration rate. Ann Intern Med 150:604–612
Shin-Buehring Y, Rasshofer R, Endres W (1981) A new enzymatic method for pyridoxal 5′-phosphate determination. J Inherit Metab Disord 4:123–124
Kannan K, Jain SK (2004) Effect of vitamin B6 on oxygen radicals, mitochondrial membrane potential, and lipid peroxidation in H2O2-treated U937 monocytes. Free Radic Biol Med 36:423–428
Kuwahara K, Nanri A, Pham NM et al (2013) Serum vitamin B6, folate, and homocysteine concentrations and oxidative DNA damage in Japanese men and women. Nutrition 29:1219–1223
Marzio A, Merigliano C, Gatti M, Verni F (2014) Sugar and chromosome stability: clastogenic effects of sugars in vitamin B6-deficient cells. PLoS Genet 10:e1004199
Jiao L, Weinstein SJ, Albanes D et al (2011) Evidence that serum levels of the soluble receptor for advanced glycation end products are inversely associated with pancreatic cancer risk: a prospective study. Cancer Res 71:3582–3589
Jiao L, Taylor PR, Weinstein SJ et al (2011) Advanced glycation end products, soluble receptor for advanced glycation end products, and risk of colorectal cancer. Cancer Epidemiol Biomarkers Prev 20:1430–1438
Leklem JE (1990) Vitamin B-6: a status report. J Nutr 120(Suppl 11):1503–1507
Acknowledgments
We thank Xue-Li Wang of the Shanghai Cancer Institute for assistance with data collection and management and the staff of the Shanghai Cancer Registry for their assistance in verifying cancer diagnoses in study participants. We thank Siew-Hong Low of the National University of Singapore for supervising the fieldwork in the Singapore Chinese Health Study. We also thank The Singapore Cancer Registry for the identification of cancer and mortality outcomes via database linkages. Finally, we acknowledge the founding Principal Investigator of the Singapore Chinese Health Study, Mimi C. Yu.
Funding
The work was supported by the National Institutes of Health (NCI R01 CA144034 and UM1 CA182876).
Author information
Authors and Affiliations
Corresponding author
Ethics declarations
Conflict of interest
None declared.
Ethical approval
All procedures performed in studies involving human participants were in accordance with the ethical standards of the institutional and/or national research committee and with the 1964 Helsinki declaration and its later amendments or comparable ethical standards.
Electronic supplementary material
Below is the link to the electronic supplementary material.
Rights and permissions
About this article
Cite this article
Huang, J.Y., Butler, L.M., Midttun, Ø. et al. Serum B6 vitamers (pyridoxal 5′-phosphate, pyridoxal, and 4-pyridoxic acid) and pancreatic cancer risk: two nested case–control studies in Asian populations. Cancer Causes Control 27, 1447–1456 (2016). https://doi.org/10.1007/s10552-016-0822-6
Received:
Accepted:
Published:
Issue Date:
DOI: https://doi.org/10.1007/s10552-016-0822-6