1. Hodgkin D.C., Kamper J., Mackay M., et al. Structure of vitamin B12. Nature. 1956;178:64-6.
2. Watanabe F., Yabuta Y., Bito T., Teng F. Vitamin B12-Containing Plant Food Sources for Vegetarians. Nutrients. 2014;6(5):1861-73.
3. The norms of physiological requirements in energy and nutrients for different groups of the Russian population. Methodical recommendations MR 2.3.1.2432-08. Available at: http://rospotrebnadzor.ru/documents/details.php?ELEMENT_ID=4583. Checked by 09/25/2016. (In Russ.).
4. Finch S., Doyle W., Lowe C., et al. National Diet and Nutrition Survey: people aged 65 years and over. Volume 1: Report of the diet and nutrition survey. London: TSO; 1998.
5. Carmel R. Cobalamin, the stomach, and aging. Am J Clin Nutr. 1997;66:750-9.
6. Andres E., Affenberger S., Vinzio S., et al. Food-cobalamin malabsorption in elderly patients: clinical manifestations and treatment. Am J Med. 2005;118:1154-9.
7. van Asselt D.Z., de Groot L.C., van Staveren W.A., et al. Role of cobalamin intake and atrophic gastritis in mild cobalamin deficiency in older Dutch subjects. Am J Clin Nutr. 1998;68:328-34.
8. Fried M., Siegrist H., Frei R., et al. Duodenal bacterial overgrowth during treatment in outpatients with omeprazole. Gut.1994;35:23-6.
9. Carmel R., Perez-Oerez G., Blaser M. Helicobacter pylori infection and food-cobalamin malabsorption. Dig Dis Sci. 1994;39:309-14.
10. Lam J.R., Schneider J.L., Zhao W., Corley D.A. Proton Pump Inhibitor and Histamine 2 Receptor Antagonist Use and Vitamin B12 Deficiency. JAMA. 2013;310(22):2435-42.
11. de Jager J., Kooy A., Lehert P., et al. Long term treatment with metformin in patients with type 2 diabetes and risk of vitamin B12 deficiency: randomised placebo controlled trial. BMJ 2010;340: c2181.
12. Katikova O., Shikh E. Especially vitamin status in patients with liver disease of various etiologies. Possibilities of vitamin therapy. Rossiyskiy Zhurnal Gastroenterologii, Gepatologii, Koloproktologii. 2009; 19(3):21-31. (In Russ.).
13. Hughes С.F., Ward M., Hoey L., McNulty H. Vitamin В12 and ageing: current issues and interaction with folate. Annals of Clinical Biochemistry. 2012;50(4):315-29.
14. Perekatova T., Ostroumova M. Once again on the deficiency of vitamin B12. Klinicheskaya Onkogematologiya. 2009;2(2):185-95. (In Russ.).
15. Ciaccio M., Bivona G., and Bellia C. Therapeutical approach to plasma homocysteine and cardiovascular risk reduction. Ther Clin Risk Manag. 2008;4(1):219-24.
16. Kostyuchenko G., Barkagan Z. Diagnosis and correction methods of hyperhomocysteinemia in cardiology practice: A guide for doctors. Moscow: GNC RAMN; 2003. (In Russ.).
17. Homocysteine Studies Collaboration. Homocysteine and risk of ischemic heart disease and stroke: a meta-analysis. J Am Med Assoc. 2002;288:2015-22.
18. Wald D.S., Law M., Morris J.K. Homocysteine and cardiovascular disease: evidence on causality from a meta-analysis. BMJ 2002;325:1202-8.
19. Noichri Y., Chalghoum A., Chkioua L., et al. Low erythrocyte catalase enzyme activity is correlated with high serum total homocysteine levels in tunisian patients with acute myocardial infarction. Diagn Pathol. 2013; 8: 68.
20. Vasan R.S., Beiser A., D’Agostino R.B., et al. Plasma homocysteine and risk for congestive heart failure in adults without prior myocardial infarction. JAMA. 2003;289:1251-7.
21. Kojoglanian S.A., Jorgensen M.B., Wolde-Tsadik G., et al. Restenosis in Intervened Coronaries with Hyperhomocysteinemia (RICH). Am Heart J. 2003;146(6):1077-81.
22. Faria-Neto J.R., Chagas A.C., Bydlowski S.P., et al. Hyperhomocystinemia in patients with coronary artery disease. Braz J Med Biol Res. 2006;39(4):455-63.
23. Kazemi M.B., Eshraghian K., Omrani G.R., et al. Homocysteine level and coronary artery disease. Angiology. 2006;57(1):9-14.
24. O’Leary F., Samman S. Vitamin B12 in Health and Disease. Nutrients. 2010;2(3):299-316.
25. Bonaa K.H., Njolstad I., Ueland P.M., et al. Homocysteine lowering and cardiovascular events after acute myocardial infarction. N Engl J Med. 2006;354(15):1578-88.
26. Lonn E., Yusuf S., Arnold M.J., et al. Homocysteine lowering with folic acid and B vitamins in vascular disease. N Engl J Med. 2006;354(15):1567-77.
27. Spence J.D., Bang H., Chambless L.E., Stampfer M.J. Vitamin Intervention For Stroke Prevention trial: an efficacy analysis. Stroke 2005;36(11):2404-9.
28. Bleie O., Strand E., Ueland P.M., et al. Coronary blood flow in patients with stable coronary artery disease treated long term with folic acid and vitamin B12. Coron Artery Dis. 2011;22(4):270-8.
29. Drapkina O., Shepel R. Telomeres and telomerase complex. The main clinical manifestation of genetic malfunctioning. Kardiovaskulyarnaya Terapiya i Profilaktika. 2015;14(1):70-7. (In Russ.).
30. Blackburn E.H. Switching and signaling at the telomere. Cell. 2001;106(6):661-73.
31. Rose A., Patel S., Meier I. The plant nuclear envelope. Planta. 2004;218:327-36.
32. Pennaneach V., Putnam C.D., Kolodner R.D. Chromosome healing by de novo telomere addition in Saccharomyces cerevisiae. Mol Microbiol. 2006;59:1357-68.
33. Pedram M., Sprung C.N., Gao Q., et al. Telomere position effect and silencing of transgenes near telomeres in the mouse. Mol Cell Biol. 2006;26(5):1865-78.
34. Olovnik A.I. A theory of marginotomy: the incomplete copying of template margin in enzymatic synthesis of polynucleotides and biological significance of the phenomenon. J Theor Biol. 1973;41:181-90.
35. von Zglinicki T., Martin-Ruiz C.M. Telomeres as biomarkers for ageing and age-related diseases. Curr Mol Med.2005;5:197-203.
36. Drapkina O., Shepel R. The modern conception of the proper role of telomeres and telomerase in pathogenesis of hypertension. Arterial'naya Gipertenziya. 2013;19(4):290-8. (In Russ.).
37. Drapkina O., Shepel R. Telomeres and chronic heart failure. Kardiologiia. 2014;54(4):60-7. (In Russ.).
38. Ogami M., Ikura Y., Ohsawa M., et al. Telomere shortening in human coronary artery diseases. Arterioscler Thromb Vasc Biol. 2004;24(3):546-50.
39. Samani N.J., Boultby R., Butler R., et al. Telomere shortening in atherosclerosis. Lancet. 2001;358(9280):472-3.
40. Olivieri F., Mazzanti I., Abbatecola A.M., et al. Telomere/Telomerase system: a new target of statins pleiotropic effect? Curr Vasc Pharmacol. 2012;10(2):216-24.
41. Drapkina O.M., Shepel R.N. Pleotropic effects of vitamin D. Rational Pharmacotherapy in Cardiology
42. ;12(2):227-33 (In Russ.)..
43. Drapkina O.M., Shepel R.N. Telomere light and atherosclerosis. Rossiyskiy Kardiologicheskiy Zhurnal 2016;(9):84-9 (In Russ.)..
44. Lee Y.J., Wang M.Y., Lin M.C., Lin P.T. Associations between Vitamin B12 Status and Oxidative Stress and Inflammation in Diabetic Vegetarians and Omnivores. Nutrients 2016;8(3):118.
45. Weinberg J.B., Chen Y., Jiang N., et al. Inhibition of nitric oxide synthase by cobalamins and cobinamides. Free Radic Biol Med. 2009;46(12):1626-32.
46. Xu Q., Parks C.G., DeRoo L.A., et al. Multivitamin use and telomere length in women. Am J Clin Nutr. 2009;89(6):1857-63.