Inborn errors in the vitamin B6 salvage enzymes associated with neonatal epileptic encephalopathy and other pathologies.
@article{Ghatge2021InbornEI, title={Inborn errors in the vitamin B6 salvage enzymes associated with neonatal epileptic encephalopathy and other pathologies.}, author={Mohini S. Ghatge and Mohammed H. AL Mughram and Abdelsattar M. Omar and Martin K. Safo}, journal={Biochimie}, year={2021} }
5 Citations
Diet modifies allele-specific phenotypes in Drosophila carrying epilepsy-associated PNPO variants
- BiologybioRxiv
- 2021
It is demonstrated that human PNPO variants interact with diet to contribute to phenotypic variations; and that the knock-in Drosophila model offers a powerful approach to systematically examine clinical manifestations and the underlying mechanisms of human PnPO deficiency.
Drosophila carrying epilepsy-associated variants in the vitamin B6 metabolism gene PNPO display allele- and diet-dependent phenotypes
- BiologyProceedings of the National Academy of Sciences of the United States of America
- 2022
It is shown that phenotypes in knock-in flies are allele and diet dependent, providing clues for timely and specific diet interventions and biological insights into mechanisms underlying phenotypic variations and specific therapeutic strategies.
Structural biochemistry coming of age in the study of genetic metabolic disorders
- MedicineBiochimie
- 2021
References
SHOWING 1-10 OF 130 REFERENCES
Mutations in PROSC Disrupt Cellular Pyridoxal Phosphate Homeostasis and Cause Vitamin-B6-Dependent Epilepsy.
- BiologyAmerican journal of human genetics
- 2016
Disorders affecting vitamin B6 metabolism
- Biology, ChemistryJournal of inherited metabolic disease
- 2019
The clinical and biochemical features of disorders leading to B6‐responsive seizures and the treatment of these disorders are described in this review.
Molecular characterization of pyridoxine 5′-phosphate oxidase and its pathogenic forms associated with neonatal epileptic encephalopathy
- BiologyScientific Reports
- 2020
It is revealed that human PNPO has an allosteric PLP binding site that plays a crucial role in the enzyme regulation and therefore in the regulation of vitamin B6 metabolism in humans.
Biomedical aspects of pyridoxal 5'-phosphate availability.
- Biology, MedicineFrontiers in bioscience
- 2012
The biologically active form of vitamin B6, pyridoxal 5'-phosphate, is a cofactor in over 160 enzyme activities involved in a number of metabolic pathways, including neurotransmitter synthesis and degradation, and represents a very challenging research field.
Pyridoxamine Supplementation Effectively Reverses the Abnormal Phenotypes of Zebrafish Larvae With PNPO Deficiency
- Biology, MedicineFront. Pharmacol.
- 2019
Zebrafish is suggested to be a promising PNPO-deficiency model for studying PLP homeostasis and drug therapy in vivo, and pyridoxamine (PM), another dietary form of vitamin B6, showed rescue effects even at a lower concentration than PLP, presenting a possible new therapeutic treatment for PN PO-deficient NEE.
Neonatal epileptic encephalopathy caused by mutations in the PNPO gene encoding pyridox(am)ine 5'-phosphate oxidase.
- BiologyHuman molecular genetics
- 2005
Maintenance of optimal PLP levels in the brain may be important in many neurological disorders in which neurotransmitter metabolism is disturbed (either as a primary or as a secondary phenomenon).
Pyridoxine supply in human development.
- Biology, MedicineSeminars in cell & developmental biology
- 2011
Molecular Basis of Reduced Pyridoxine 5′-Phosphate Oxidase Catalytic Activity in Neonatal Epileptic Encephalopathy Disorder*
- Biology, ChemistryThe Journal of Biological Chemistry
- 2009
The results provide a molecular basis for the phenotype associated with the R229W mutation, as well as providing a foundation for understanding the pathophysiological consequences of pyridoxine 5′-phosphate oxidase mutations.
Pyridoxine-5'-phosphate oxidase (Pnpo) deficiency: Clinical and biochemical alterations associated with the C.347g>A (P.·Arg116gln) mutation.
- Biology, MedicineMolecular genetics and metabolism
- 2017
Inborn errors affecting vitamin B6 metabolism
- Biology, Medicine
- 2006
The clinical features and biochemistry of three inborn errors of metabolism affecting brain pyridoxal 5-phosphate concentrations are described, each of which cause early-onset epilepsy of variable severity.