The benefits of vitamin C and vitamin E in children with beta-thalassemia with high oxidative stress.
The present study aimed to determine the benefits of vitamin C and vitamin E as antioxidant supplements in beta-Thalassemia children who are at risk of iron overload due to multiple blood transfusion and high oxidative stress. Antioxidant status, oxidative products, plasma free hemoglobin, total hemoglobin and bilirubin were discussed. Twenty children who had laboratory confirmation of major beta-Thalassemia at least 6 months with history of packed red cell transfusion without iron chelation were recruited. The informed consent for blood sample collection and antioxidant medication was performed. Most patients (85%) had hyperferritinemia and all of them had high oxidative stress. All of them had low vitamin C and vitamin E level at recruitment. Three months after vitamin C and vitamin E supplementation, plasma vitamin C, vitamin E and glutathione were significantly increased, while total bilirubin was slightly decreased without significance. Other parameters included total antioxidant status (TAS), plasma and erythrocyte malondialdehyde (MDA), hemoglobin and plasma free hemoglobin had no differences during the study period.


CONCLUSIONS
B-Thalassemia major children who had multiple blood transfusion are at risk in iron overload and high oxidative stress. From the present study, no significant improvement in raising hemoglobin and concerning low dose vitamin C is not contraindication in beta-Thalassemia patients. Therefore, vitamin C plus vitamin E supplementation have benefits more than vitamin E alone in promoting antioxidant status and may enhance liver function as total bilirubin tends to decrease.
Dissayabutra
Thasinas
T
Department of Biochemistry, Faculty of Medicine, Chulalongkorn University, Bangkok, Thailand.
Tosukhowong
Piyaratana
P
Seksan
Panya
P
D000293:Adolescent; D000975:Antioxidants / Q000627:therapeutic use*; D001205:Ascorbic Acid / Q000627:therapeutic use*; D001663:Bilirubin; D002648:Child; D002675:Child, Preschool; D005260:Female; D006801:Humans; D008099:Liver / Q000187:drug effects; D008297:Male; D018384:Oxidative Stress / Q000187:drug effects*; D011446:Prospective Studies; D014810:Vitamin E / Q000627:therapeutic use*; D017086:beta-Thalassemia / Q000188:drug therapy*
D000975:Antioxidants; D014810:Vitamin E; D001205:Ascorbic Acid; D001663:Bilirubin