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Effects of Vitamin B12 Supplementation on some hematological parameters in Patients with Anemia due to B12 deficiency

Zainab Wahab Al-Maaroof

Abstract

Background: Anemia is a widespread hematological disorder characterized by reduced red blood cell (RBC) count, hemoglobin concentration, or both. Among its various etiologies, vitamin B12 deficiency plays a significant role, especially in populations with dietary restrictions or malabsorption syndromes. This study evaluates the effects of vitamin B12 supplementation on RBC count and other hematological parameters in patients diagnosed with anemia due to confirmed B12 deficiency. Methods: A prospective cohort of 200 patients was analyzed over 18 months, with RBC counts and hemoglobin levels measured at baseline, 6 weeks, and 12 weeks post-supplementation of intramuscular injections hydroxycobalamin, 1000 ?g. Results: The mean age was 45.3 ± 12.4 years, with a female predominance (69%), at baseline, the mean RBC count was 3.1 ± 0.5 × 10/L, which rose significantly to 3.8 ± 0.4 × 10/L at 6 weeks and 4.5 ± 0.3 × 10/L at 12 weeks (p < 0.001). Hemoglobin levels increased from 9.2 ± 1.8 g/dL to 11.5 ± 1.2 g/dL at 6 weeks and 13.0 ± 1.0 g/dL at 12 weeks (p < 0.001). Mean corpuscular volume was 108.6 ± 6.8 fL at baseline, normalized to 101.6 ± 5.9 fL at 6 weeks and 95.4 ± 5.3 fL by 12 weeks (p < 0.001). Conclusion: Vitamin B12 supplementation is a cornerstone in managing anemia due to B12 deficiency. Prompt diagnosis and treatment significantly improve RBC count, hemoglobin levels, and patient-reported outcomes.

References

1. World Health Organization. Global prevalence of anemia 2011–2015. Geneva: WHO; Agrawal AR ,Mair N, Mehta RS,Chakrapani AS, Gupta K.Srivastav Y.et al. Clinical and Hematological characteristics of vitamin B12 Deficiency and Evaluation of the Therapeutic Response to Vitamin B12 Supplementation. Cureus. 2024;16(12): e76468.DOI 10.7759/cureus.76468 Green R, Allen LH, Bjørke-Monsen AL, Brito A.Vitamin B12 deficiency. Nat Rev Dis Primers. 2017;3:17040. Shipton MJ, Thachil J. Vitamin B12 deficiency–A 21st century perspective. Clin Med (Lond). 2015;15(2):145-50. Devalia V, Hamilton MS, Molloy AM. Guidelines for the diagnosis and treatment of cobalamin and folate disorders. Br J Haematol. 2014;166(4):496-513. Carmel R. Subclinical cobalamin deficiency. Curr Opin Gastroenterol. 2012;28(2):151- Briani C, Dalla Torre C, Citton V, Manara R, Pompanin S, Binotto G, Adami F. Cobalamin deficiency: clinical picture and radiological findings. Nutrients. 2013 Nov 15;5(11):4521-39. O'Leary F, Samman S. Vitamin B12 in health and disease. Nutrients. 2010;2(3):299- Al-Maaroof ZW. Enhancing thromboembolism risk prediction through novel biomarkers and inflammatory indicators. Journal of Applied Hematology.2024;15(4):p 313-318. World Health Organization. Guideline on haemoglobin cutoffs to define anaemia in individual and populations. Geneva: World Health Organization;2024,Licence: CC BY-NC-SA 3.0 IGO Stabler SP. Megaloblastic anemia.In: Goldman LS ,Schafer Al, eds.Goldman-Cecil Medicine .26th ed.Elsevier ;2019:1069-1077. Wolffenbuttel BH, Wouters HJ, Heiner-Fokkema MR, van der Klauw MM. The many faces of cobalamin (vitamin B12) deficiency. Mayo clinic proceedings: innovations, quality & outcomes. 2019 Jun 1;3(2):200-14. Bhole CA,Ralot TK,Meena Rl. A study of correlation between vitamin B12 deficiency and its clinical ,haematological ,electrophysiological parameters. Int Med Sci Educ.2014;1:187-94. Suthar HN,Shah TN.Evaluation of Clinical Profile and Hematological Parameters of Cases of Megaloblastic Anemia. Natl j community Med.2017;8:592-6 Andres E, Serraj K, Zhu J, et al. The pathophysiology of elevated vitamin B12 in clinical practice. QJM. 2013;106(6):505-15. Herrmann W, Obeid R. Cobalamin deficiency. Subcell Biochem. 2012;56:301-22. Moll R, Davis B. Iron, vitamin B12 and folate. Medicine. 2017 Apr 1;45(4):198-203. Premkumar M. ,Gupta N,Singh T,Velpandian T:Vitamin B12-homocyteine interaction and the efficacy of B12 therapy in relation to anemia and neurological disease in a North Indian population.Int J Nutr Pharmacol Neurol Dis. 2012 ;2: 61-9 Nexo E, Hoffmann-Lücke E. Holotranscobalamin, a marker of vitamin B12 status: analytical aspects and clinical utility. Am J Clin Nutr. 2011;94(1):359S-65S. Green R, Allen LH, Bjørke-Monsen AL, Brito A, Guéant JL, Miller JW,et al Vitamin B12 deficiency. Nature reviews Disease primers. 2017 Jun 29;3(1):1-20. Wang H, Li L, Qin LL, et al. High prevalence of vitamin B12 deficiency in Chinese lacto-ovo vegetarians and vegans: a cross-sectional study. Br J Nutr. 2018;120(9):1031- 40.