Product references — Vitamin B12

Bucciarelli, P., et al. 2010. The relationship between plasma homocysteine levels and bone mineral density in post-menopausal women. Eur. J. Intern. Med., 21 (4), 301–305. URL (abstract): http://www.ncbi.nlm.nih.gov/pubmed/20603040 (accessed 08.02.2010).

Krivosíková, Z., et al. 2010. The association between high plasma homocysteine levels and lower bone mineral density in Slovak women: The impact of vegetarian diet. Eur. J. Nutr., 49 (3), 147–153. URL (abstract): http://www.ncbi.nlm.nih.gov/pubmed/19809862 (accessed 08.02.2010).

Ouzzif, Z., et al. 2010. Relation of plasma total homocysteine, folate and vitamin B12 levels to bone mineral density in Moroccan healthy postmenopausal women. Rheumatol. Int. [Epub ahead of print.] URL (abstract): http://www.ncbi.nlm.nih.gov/pubmed/20676649 (accessed 08.11.2010).

Rivas, A., et al. 2009. [Validation of questionnaires for the study of food habits and bone mass.] Nutr. Hosp., 24 (5), 521–528. URL (PDF): http://scielo.isciii.es/pdf/nh/v24n5/original1.pdf (accessed 07.30.2010).

Allen, L. 2008. Causes of vitamin B12 and folate deficiency. Food Nutr. Bull., 29 (2 Suppl.), S20–S34; discussion S35–37. URL (abstract): http://www.ncbi.nlm.nih.gov/pubmed/15671130 (accessed 12.15.2008).

Dahlin, A., et al. 2008. Plasma vitamin B12 concentrations and the risk of colorectal cancer: A nested case-referent study. Int. J. Cancer, 122 (9), 2057–2061. URL (abstract): http://www.ncbi.nlm.nih.gov/pubmed/18092327 (accessed 12.17.2008).

McLean, R., et al. 2008. Plasma B vitamins, homocysteine, and their relation with bone loss and hip fracture in elderly men and women. J. Clin. Endocrin. Metab., 93 (6), 2206–2212. URL: http://jcem.endojournals.org/cgi/content/full/93/6/2206 (accessed 08.02.2010).

Volkov, I. 2008. The critical role of vitamin B12. Phys. Sportsmed., 36 (1), 34–41. URL (abstract): http://www.ncbi.nlm.nih.gov/pubmed/20048470 (accessed 08.02.2010).

Gjesdal, C., et al. 2007. Plasma homocysteine, folate, and vitamin B 12 and the risk of hip fracture: The Hordaland homocysteine study. J. Bone Miner. Res., 22 (5), 747–756. URL (abstract): (accessed 08.02.2010).

Herrmann, M., et al. 2007. Stimulation of osteoclast activity by low B-vitamin concentrations. Bone, 41 (4), 584–591. URL (abstract): http://www.ncbi.nlm.nih.gov/pubmed/17681876 (accessed 08.02.2010).

Zee, R. et al. 2007. Homocysteine, 5,10-methylenetetrahydrofolate reductase 677C>T polymorphism, nutrient intake, and incident cardiovascular disease in 24,968 initially healthy women. Clin. Chem., 53 (5), 845–851. URL: http://www.clinchem.org/cgi/content/full/53/5/84 (accessed 12.16.2008).

Abrahamsen, B., et al. 2005. Are effects of MTHRF (C677T) genotype on BMD confined to women with low folate and riboflavin intake? Analysis of food records from the Danish osteoporosis prevention study. Bone, 36 (3), 577–583. URL (abstract): http://www.ncbi.nlm.nih.gov/pubmed/15777680 (accessed 08.02.2010).

Coppen, A., & Bolander–Gouaille, C. 2005. Treatment of depression: Time to consider folic acid and vitamin B12. J. Psychopharmacol., 19 (1), 59–65. URL (abstract): http://www.ncbi.nlm.nih.gov/pubmed/15671130 (accessed 12.15.2008).

Dhonukshe–Rutten, R., et al. 2005. Homocysteine and vitamin B12 status relate to bone turnover markers, broadband ultrasound attenuation, and fractures in healthy elderly people. J. Bone Miner. Res., 20 (6), 921–929. URL (abstract): http://www.ncbi.nlm.nih.gov/pubmed/15883631 (accessed 08.02.2010).

Eussen, S., et al. 2005. Oral cyanocobalamin supplementation in older people with vitamin B12 deficiency: A dose-finding trial. Arch. Intern. Med., 165 (10), 1167–1172. URL: http://archinte.ama-assn.org/cgi/content/full/165/10/1167 (accessed 12.15.2008).

Van Guelpen, B., et al. 2005. Folate, vitamin B12, and risk of ischemic and hemorrhagic stroke: A prospective, nested case-referent study of plasma concentrations and dietary intake. Stroke, 36 (8), 1426–1431. URL: http://stroke.ahajournals.org/cgi/content/full/36/7/1426 (accessed 12.15.2008).

Wolters, M., et al. 2005. Effect of multivitamin supplementation on the homocysteine and methylmalonic acid blood concentrations in women over the age of 60 years. Eur. J. Nutr., 44 (3), 183–192. URL (abstract): http://www.ncbi.nlm.nih.gov/pubmed/15309436 (accessed 12.14. 2008).

Lee, B., et al. 2004. Folic acid and vitamin B12 are more effective than vitamin B6 in lowering fasting plasma homocysteine concentration in patients with coronary artery disease. Eur. J. Clin. Nutr., 58 (3), 481–487. URL (abstract): http://www.ncbi.nlm.nih.gov/pubmed/14985687 (accessed 12.15.2008).

Stabler, S., & Allen, R. 2004. Vitamin B12 deficiency as a worldwide problem. Annu. Rev. Nutr., 24, 299–326. URL (abstract): http://www.ncbi.nlm.nih.gov/pubmed/15189123 (accessed 12.15.2008).

Hintikka, J., et al. 2003. High vitamin B12 level and good treatment outcome may be associated in major depressive disorder. BMC Psych., 3, 17. URL: http://www.biomedcentral.com/1471-244X/3/17 (accessed 12.15.2008).

Lewerin, C., et al. 2003. Reduction of plasma homocysteine and serum methylmalonate concentrations in apparently healthy elderly subjects after treatment with folic acid, vitamin B12 and vitamin B6: A randomised trial. Eur. J. Clin. Nutr., 57 (11), 1426–1436. URL (abstract): http://www.ncbi.nlm.nih.gov/pubmed/14576756 (accessed 12.15.2008).

Seal, E., et al. 2002. A randomized, double-blind, placebo-controlled study of oral vitamin B12 supplementation in older patients with subnormal or borderline serum vitamin B12 concentrations. J. Am. Geriatr. Soc., 50 (1), 146–151. URL: http://archinte.ama-assn.org/cgi/content/full/165/10/1167 (accessed 12.15.2008).

Hassing, L., et al. 1999. Further evidence on the effects of vitamin B12 and folate levels on episodic memory functioning: A population-based study of healthy very old adults. Biol. Psych., 45 (11), 1472–1480. URL: (abstract): http://www.ncbi.nlm.nih.gov/pubmed/10356630 (accessed 12.15.2008).

Kim, G., et al. 1996. Effects of vitamin B12 on cell proliferation and cellular alkaline phosphatase activity in human bone marrow stromal osteoprogenitor cells and UMR106 osteoblastic cells. Metabolism, 45 (12), 1443–1446. URL (abstract): http://www.ncbi.nlm.nih.gov/pubmed/8969275 (accessed 08.02.2010).

Cravo, M., et al. 1996. Hyperhomocysteinemia in chronic alcoholism: Correlation with folate, vitamin B-12, and vitamin B-6 status. Am. J. Clin. Nutr., 63 (2), 220–224. URL (PDF): http://www.ajcn.org/cgi/reprint/63/2/220 (accessed 12.15.2008).

Davis, B., et al. 1982. Enhanced absorption of oral vitamin B12 from a resin adsorbate administered to normal subjects. Manip. Physiol. Ter., 5 (3), 123–127. URL: (abstract): http://www.ncbi.nlm.nih.gov/pubmed/6752321 (accessed 12.15.2008).

Combs, G., 1992. Vitamin B6 (Chapter 13), and Vitamin B12 (Chapter 17). In The Vitamins: Fundamental Aspects in Nutrition and Health, 331–347; 403–419. San Diego: Academic Press.

McBride, J. 2000. B12 deficiency may be more widespread than thought. Agricultural Research. URL: http://www.ars.usda.gov/IS/pr/2000/000802.htm (accessed 12.17.2008).