Normal vitamin E status in sickle hemoglobinopathies in Colorado

Area of Science:

• Biochemistry
• Hematology
• Nutritional Science

Background:

• Previous studies suggested a high prevalence of vitamin E deficiency in sickle cell anemia (SCA) patients.
• Vitamin E status is crucial for SCA management and understanding disease progression.

Purpose of the Study:

• To investigate vitamin E status in SCA patients in Colorado.
• To evaluate serum vitamin E levels and serum E to lipid ratios (E:L) as indicators of vitamin E status.
• To explore the relationship between serum vitamin E and cholesterol levels in SCA patients.

Main Methods:

• Assessed serum vitamin E levels and E:L ratios in 101 SCA patients.
• Compared SCA patient data with age-, sex-, and race-matched controls.
• Analyzed correlations between serum vitamin E, total lipid, and cholesterol levels.

Main Results:

• Vitamin E deficiency was rarely observed based on E:L ratios (1/70 in homozygous SCA, 1/7 in sickle beta+-thalassemia).
• All patients were considered vitamin E-sufficient based on serum E levels.
• Serum cholesterol levels were lower in SCA patients and correlated better with serum E than total lipids.

Conclusions:

• Vitamin E deficiency is uncommon in SCA patients residing in Colorado.
• Serum vitamin E levels appear to be a reliable indicator of vitamin E status in SCA.
• The ratio of serum vitamin E to cholesterol may serve as a useful biomarker for assessing vitamin E status in SCA.