Iron state in alpha and beta thalassaemia trait

Area of Science:

• Hematology
• Genetics
• Nutritional Science

Background:

• Thalassaemia is a genetic blood disorder affecting hemoglobin production.
• Iron status is crucial during pregnancy, especially in women with hemoglobinopathies.
• Alpha and beta thalassaemia are distinct genetic forms with varying clinical implications.

Purpose of the Study:

• To compare iron status in pregnant women with alpha-thalassaemia versus beta-thalassaemia gene carriers.
• To investigate the relationship between thalassaemia type and iron deficiency prevalence.
• To explore the role of hemolysis in iron metabolism differences.

Main Methods:

• Comparative analysis of iron parameters (ferritin, iron deficiency) in pregnant carriers.
• Assessment of hematological markers (hemoglobin, mean cell hemoglobin).
• Measurement of serum alpha hydroxybutyrate dehydrogenase activity to estimate hemolysis.

Main Results:

• Hematological expression was similar between alpha and beta thalassaemia carriers.
• Alpha thalassaemia carriers had ferritin levels and iron deficiency rates comparable to normal pregnant women.
• Beta thalassaemia carriers exhibited significantly higher ferritin concentrations and a fourfold lower incidence of iron deficiency.
• Hemolysis levels, indicated by enzyme activity, differed between the two groups, potentially explaining iron status variations.

Conclusions:

• Iron status during pregnancy differs significantly between alpha and beta thalassaemia carriers despite similar anemia severity.
• Beta thalassaemia is associated with a lower risk of iron deficiency compared to alpha thalassaemia in pregnant carriers.
• Differential hemolysis rates likely contribute to the observed disparities in iron metabolism.