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Serum cobalamin concentration in sickle cell disease (HbSS)
Insights
Sickle cell children (HbSS) show reduced serum cobalamin and linked erythrocyte folate levels. Supplementing cobalamin with folate may reduce infection frequency and severity in these patients.
Area of Science:
- Hematology
- Nutritional Biochemistry
Background:
- Sickle cell disease (HbSS) is associated with various hematological abnormalities.
- Nutritional deficiencies, particularly in vitamins like cobalamin and folate, are common in sickle cell patients.
Purpose of the Study:
- To investigate serum cobalamin, folate, and erythrocyte folate levels in children with sickle cell disease during the steady state.
- To explore the relationship between cobalamin and folate status in these patients.
- To discuss the potential role of cobalamin in folate metabolism and immune function.
Main Methods:
- Serum cobalamin and folate concentrations were measured.
- Erythrocyte folate concentrations were determined.
- Total leucocyte and neutrophil counts were analyzed.
Main Results:
- Significant reduction in serum cobalamin concentration observed in sickle cell children.
- Significant increases in total leucocyte and neutrophil counts noted.
- A positive correlation between serum cobalamin and erythrocyte folate levels was found, with lowest erythrocyte folate in patients with lowest serum cobalamin.
Conclusions:
- Cobalamin deficiency may impact erythrocyte folate polyglutamate synthesis and immune function in sickle cell disease.
- Daily cobalamin supplementation, alongside folate, may benefit sickle cell patients by potentially reducing infection frequency and severity.
Abstract:
The serum cobalamin, serum folate, erythrocyte folate concentrations and total leucocyte and neutrophil counts have been studied in sickle cell children (with HbSS) during the steady state. There was a significant reduction in serum cobalamin concentration with significant increases in both the total leucocyte count and neutrophil differential. A relationship was also observed between the serum cobalamin and erythrocyte folate. The lowest erythrocyte folate levels were observed in patients with the lowest serum cobalamin concentration. These abnormalities are discussed in relation to the possible role of cobalamin in the synthesis of erythrocyte folate polyglutamate and possible immunological role of cobalamin among these children. These results lend support to the view that daily cobalamin supplementation along with folate (which is being given) may prove beneficial to the sickle cell patients as it may lower the frequency and severity of infections.
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