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Vitamin E deficiency in children with chronic cholestasis leads to neurological issues and increased red blood cell hemolysis. Lower vitamin E levels correlate with more severe fat malabsorption and cholestasis.
Area of Science:
- Pediatric Gastroenterology
- Clinical Nutrition
- Neurology
Context:
- Chronic cholestasis in children often leads to fat-soluble vitamin deficiencies.
- Vitamin E is crucial for neurological function and antioxidant defense.
- Understanding deficiency consequences aids in managing pediatric cholestatic liver diseases.
Purpose:
- To investigate the clinical manifestations and biochemical consequences of Vitamin E deficiency in pediatric chronic cholestasis.
- To correlate Vitamin E serum levels with cholestasis duration, fat malabsorption, and clinical signs.
- To examine the impact of Vitamin E deficiency on red blood cell (RBC) integrity and platelet function.
Summary:
- Twelve children with chronic cholestasis were assessed for Vitamin E status and related complications.
- Lowest Vitamin E serum levels were observed in patients with prolonged cholestasis and severe fat malabsorption.
- Neurological dysfunction (peripheral nerves, cerebellum, eyes) was noted in 7 children. In vitro studies showed increased RBC hemolysis inversely related to Vitamin E levels. Eight patients exhibited increased platelet aggregation, with 6 having low Vitamin E.
Impact:
- Highlights the critical role of Vitamin E in preventing neurological damage and maintaining RBC stability in cholestatic children.
- Underscores the need for monitoring and supplementation of Vitamin E in pediatric patients with chronic cholestasis.
- Provides evidence linking Vitamin E deficiency to specific clinical and laboratory findings, informing diagnostic and therapeutic strategies.
Abstract:
The mechanisms and consequences of Vitamin E deficiency were studied in 12 children presenting with chronic cholestasis. Preliminary results indicate that: (1) Vitamin E serum levels are lowest in children with the long-lasting cholestasis and in children in whom fat malabsorption is deepest. (2) Signs of neurologic dysfunction involving peripheral nerves, cerebellum, eye movements and retina were present in 7 children. (3) In vitro study of RBC showed increased hemolysis with oxidating agents and in physiological saline. Degree of hemolysis was inversely related to the serum level of vitamin E. (4) Increased platelet aggregation was observed in 8 patients; 6 of these also had low levels of serum Vitamin E.