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Enzyme deficiencies in neonates with jaundice
A Casado1, C Casado, E López-Fernández
1Departmento de Fisiopatología y Genetica Molecular Humana, Centro de Investigaciones Biologicas (CSIC), Madrid, Spain.
Panminerva Medica
|December 1, 1995
Summary
Neonatal jaundice can be linked to enzyme deficiencies like Glucose-6-Phosphate Dehydrogenase (G6PD) deficiency. This study investigated the incidence of G6PD, PK, and GSSG-R deficiencies in jaundiced newborns to identify at-risk populations.
Area of Science:
- Biochemistry
- Pediatrics
- Hematology
Background:
- Enzyme deficiencies, particularly those affecting red blood cell oxidative protection, are known causes of hemolysis and hyperbilirubinemia.
- Glucose-6-Phosphate Dehydrogenase (G6PD) deficiency is a recognized cause of neonatal hyperbilirubinemia across diverse ethnic groups.
Purpose of the Study:
- To determine the incidence of Glucose-6-Phosphate Dehydrogenase (G6PD), Pyruvate Kinase (PK), and Glutathione Disulfide Reductase (GSSG-R) deficiencies in neonates presenting with jaundice.
- To better assess the population at risk for developing neonatal jaundice due to these specific enzyme deficiencies.
Main Methods:
- Analysis of 341 jaundiced neonates of both sexes.
- Screening for deficiencies in key red blood cell enzymes: G6PD, PK, and GSSG-R.
Main Results:
- Identified 47 neonates with G6PD deficiency.
- Detected 9 neonates with PK deficiency.
- Found 2 neonates with GSSG-R deficiency.
Conclusions:
- The study confirms the presence of G6PD, PK, and GSSG-R deficiencies in jaundiced neonates.
- These enzyme deficiencies are implicated in the development of neonatal jaundice, highlighting the need for targeted screening.