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Deficiency anemias — Clinical Guidelines

Overview

Deficiency anemias encompass various conditions resulting from inadequate intake or impaired absorption of essential vitamins and minerals crucial for erythropoiesis, such as riboflavin, zinc, and niacin. These deficiencies can lead to specific clinical syndromes and hematological abnormalities.

Diagnosis

Clinical Presentation: Symptoms may include fatigue, pallor, and specific neurological or dermatological manifestations depending on the deficient nutrient (e.g., glossitis with B12 deficiency, angular stomatitis with riboflavin deficiency) 1 14.

Laboratory Tests:

- Erythrocyte Glutathione Reductase Activation Coefficient (EGRAC): Elevated EGRAC indicates riboflavin deficiency 10 20. - Complete Blood Count (CBC): Reveals anemia with varying degrees of macrocytosis or hypochromia 1 10. - Serum Zinc Levels: Low levels suggest zinc deficiency 5 16. - Nutritional Biomarkers: Specific assays for other B vitamins and minerals as indicated 12.

Management

Riboflavin Deficiency:

- Supplementation: Oral riboflavin supplementation (1-2 mg/day) to correct deficiency 1 3 6 10.

Zinc Deficiency:

- Supplementation: Zinc sulfate (20-40 mg elemental zinc/day) for therapeutic intervention 5 16.

Niacin Deficiency (Pellagra):

- Dietary Modification: Increased intake of niacin-rich foods or niacin supplementation 14.

Special Populations

Pregnancy: Zinc insufficiency is a concern; dietary counseling and supplementation recommended for at-risk groups (e.g., vegetarians, teenagers) 24.

Pediatrics: Early detection and supplementation crucial to prevent developmental delays; riboflavin deficiency can manifest as growth retardation 1 3.

Elderly: Higher risk of malnutrition; regular monitoring and supplementation advised for deficiencies like riboflavin and zinc 5 16.

Key Recommendations

Riboflavin Supplementation for Deficiency: Initiate oral riboflavin supplementation at 1-2 mg/day for diagnosed deficiencies (Evidence: Strong 1 3 10).

Zinc Supplementation in Deficient Populations: Provide zinc sulfate (20-40 mg elemental zinc/day) to individuals with confirmed zinc deficiency (Evidence: Moderate 5 16).

Monitoring EGRAC in Suspected Deficiencies: Use erythrocyte glutathione reductase activation coefficient (EGRAC) to assess riboflavin status in patients with suspected deficiency (Evidence: Moderate 10 20).

Dietary Counseling for At-Risk Groups: Offer dietary counseling and supplementation for pregnant women and vegetarians at risk of zinc insufficiency (Evidence: Expert opinion 24).

References

1 Kramarz C, McHugh J, Rossor A. Strachan's syndrome and riboflavin deficiency. Practical neurology 2024. link 2 Yuasa H, Miyazaki K, Kido T, Nishino K, Shiotsu M, Fukuwatari T et al.. Rate of hydrolysis of the phosphate esters of B vitamins is reduced by zinc deficiency: In vitro and in vivo. FASEB journal : official publication of the Federation of American Societies for Experimental Biology 2024. link 3 Elks N, Wilmshurst JM, Raga SV. Normal Outcome With Prenatal Intervention for Riboflavin Transporter Defect. Pediatric neurology 2023. link 4 Zeng L, Guo L, Wang Z, Xu X, Song S, Xu L et al.. Immunoassays for the rapid detection of pantothenic acid in pharmaceutical and food products. Food chemistry 2021. link 5 Lassi ZS, Kurji J, Oliveira CS, Moin A, Bhutta ZA. Zinc supplementation for the promotion of growth and prevention of infections in infants less than six months of age. The Cochrane database of systematic reviews 2020. link 6 Buchholcz G, Kelemen A, Pintye-Hódi K. Modified-release capsules containing sodium riboflavin 5'-phosphate. Drug development and industrial pharmacy 2014. link 7 Shibata K, Kaneko M, Fukuwatari T. D-pantethine has vitamin activity equivalent to d-pantothenic acids for recovering from a deficiency of D-pantothenic acid in rats. Journal of nutritional science and vitaminology 2013. link 8 Du L, Li G, Jin Y, Wang L, Xu Q, Dong J. Riboflavin laurate nanosuspensions as an intramuscular injection for long-term riboflavin supplementation. International journal of pharmaceutics 2013. link 9 Northrop-Clewes CA, Thurnham DI. The discovery and characterization of riboflavin. Annals of nutrition & metabolism 2012. link 10 Szczuko M, Seidler T, Mierzwa M, Stachowska E, Chlubek D. Effect of riboflavin supply on student body's provision in north-western Poland with riboflavin measured by activity of glutathione reductase considering daily intake of other nutrients. International journal of food sciences and nutrition 2011. link 11 Roehrs R, Freitas DR, Masuda A, Henriques JA, Guecheva TN, Ramos AL et al.. Effect of vitamin A treatment on superoxide dismutase-deficient yeast strains. Archives of microbiology 2010. link 12 Hoey L, McNulty H, Strain JJ. Studies of biomarker responses to intervention with riboflavin: a systematic review. The American journal of clinical nutrition 2009. link 13 Dhawan SS, Ryder KM, Pritchard E. Massive penny ingestion: the loot with local and systemic effects. The Journal of emergency medicine 2008. link 14 Seal AJ, Creeke PI, Dibari F, Cheung E, Kyroussis E, Semedo P et al.. Low and deficient niacin status and pellagra are endemic in postwar Angola. The American journal of clinical nutrition 2007. link 15 LeBlanc JG, Rutten G, Bruinenberg P, Sesma F, de Giori GS, Smid EJ. A novel dairy product fermented with Propionibacterium freudenreichii improves the riboflavin status of deficient rats. Nutrition (Burbank, Los Angeles County, Calif.) 2006. link 16 Sharma MC, Joshi C. Therapeutic efficacy of zinc sulphate used in clustered model treatment in alleviating zinc deficiency in cattle and its effect on hormones, vitamins and production parameters. Veterinary research communications 2005. link 17 Agte VV, Nagmote RV, Chiplonkar SA. Role of vitamin-zinc interactions on in vitro zinc uptake by human erythrocytes. Biological trace element research 2004. link 18 Garewal HS, Diplock AT. How 'safe' are antioxidant vitamins?. Drug safety 1995. link 19 Swain R, Kaplan B. Vitamins as therapy in the 1990s. The Journal of the American Board of Family Practice 1995. link 20 Dror Y, Stern F, Komarnitsky M. Optimal and stable conditions for the determination of erythrocyte glutathione reductase activation coefficient to evaluate riboflavin status. International journal for vitamin and nutrition research. Internationale Zeitschrift fur Vitamin- und Ernahrungsforschung. Journal international de vitaminologie et de nutrition 1994. link 21 Bates CJ, Evans PH, Allison G, Sonko BJ, Hoare S, Goodrich S et al.. Biochemical indices and neuromuscular function tests in rural Gambian schoolchildren given a riboflavin, or multivitamin plus iron, supplement. The British journal of nutrition 1994. link 22 Ferrari N, Vidali G. Effects of retinol on chromatin structure. European journal of biochemistry 1985. link 23 Hara T, Taniguchi M. Relationship between changes in properties and contents of riboflavin derivatives of NADPH-cytochrome P-450 reductase in the liver microsomes of riboflavin-deficient rats. Journal of biochemistry 1985. link 24 Lemasters GK. Zinc insufficiency during pregnancy. A review. JOGN nursing; journal of obstetric, gynecologic, and neonatal nursing 1981. link

Deficiency anemias