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Zinc, copper and iron and their interrelations in the growth of sickle cell patients
J A Pellegrini Braga1, J Kerbauy, M Fisberg
1Department of Pediatric, Federal University of São Paulo, Escola Paulista de Medicina, Brazil.
Insights
Children with sickle cell disease (SS) exhibit malnutrition and delayed growth, with significantly lower plasma zinc and higher copper levels compared to controls. These nutritional deficits correlate with reduced stature.
Area of Science:
- Pediatrics
- Nutritional Science
- Hematology
Background:
- Sickle cell disease (SS) is a genetic blood disorder impacting children's health.
- Nutritional status is crucial for growth and development in children with chronic diseases.
- Socioeconomic factors can influence health outcomes in vulnerable populations.
Purpose of the Study:
- To evaluate the nutritional status of children with sickle cell disease (SS).
- To compare nutritional parameters between children with SS, sickle cell trait (AS), and healthy controls (AA).
- To investigate the relationship between nutritional status, growth, and disease parameters in SS.
Main Methods:
- Comparative analysis of anthropometric measurements (weight, height) and growth velocity curves.
- Biochemical assessment of plasma zinc and copper levels.
- Evaluation of skeletal maturation and correlation with nutritional and disease markers.
Main Results:
- Children with SS showed a tendency towards increased weight and height deficits with age.
- Significant skeletal maturation delay was observed in the SS group but not in the AS group.
- Lower plasma zinc and higher plasma copper levels were found in the SS group compared to AS and AA groups.
Conclusions:
- Children with sickle cell disease exhibit malnutrition, iron deficiency, hypercupremia, and hypozincemia.
- Low plasma zinc levels were associated with reduced height percentile in the SS group.
- These findings highlight significant nutritional challenges in pediatric sickle cell disease patients.
Abstract:
In this study we evaluated the nutritional status of 34 children with sickle cell disease (SS). Results were compared to 9 siblings with sickle cell trait (AS) and 35 eutrophic children who presented normal hemoglobin and normal hemoglobin electrophoresis (AA). All of then came from low socioeconomic level. Analysis of the growth velocity curves revealed in SS group, tendency to increase deficit in weight and height with age. There was no relation between weight/height (W/H) and height/age (H/A) percentile and hemoglobin levels. There was no significant relation between nutritional status and severity of the disease. SS group showed significant skeletal maturation delay, the same did not occur with the siblings (AS group). Plasma zinc levels were significantly lower in SS group than in AS and AA groups. In SS group there was some association between lower plasma zinc levels and H/A percentile lower or equal to 10. Plasma copper levels were significantly greater in SS group than in AS and AA ones, and there was no relation between plasma copper levels and serum ferritin levels. In conclusion, our patients with sickle cell disease showed indexes of malnutrition, iron deficiency, hypercupremia and low plasma zinc levels related to low stature.
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