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Riboflavin Deficiency, Brain Function, and Health

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Handbook of Behavior, Food and Nutrition

Abstract

Vitamin B2 primarily or secondarily participates in a much wider range of critical metabolic pathways than currently recognized. An inherited disorder of the cellular uptake and trafficking of vitamin B2 metabolites may result in poor intestinal absorption, increased urinary loss, and disrupted homeostasis of vitamin B2 metabolites in the CNS. It may affect 10%–15% of the general population and be the most prevalent genetic risk factor for several human diseases. The implications include altered metabolism of several biomolecules and enzyme systems of well-established pathophysiologic relevance such as vitamins B6, B9 (folate), B12, D3, NO, lipids, amino acids, proteins, DNA, cytochrome P-450 and other enzyme systems, HO, and homocysteine. Oxidative stress, and both apoptotic and necrotic phenomena may be enhanced. Due to the loss of the brain privilege for vitamin B2 supply, this inherited condition may be particularly relevant for CNS diseases such as migraine, brain ischemia, traumatic brain injury, neurodegenerative disorders (especially Parkinson and Alzheimer’s diseases), epilepsy, multiple sclerosis, and for Guillain-Barré syndrome, myasthenia, and mitochondrial myopathies. This chapter aims at providing an overview of the potential pathophysiologic, preventive, and therapeutic implications of this prevalent (yet poorly recognized) inherited metabolism disorder for neurological diseases.

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Abbreviations

BBB:

Brain-blood barrier

BH4:

Tetrahydrobiopterin

CADCase/CSADCase:

Cysteine and sulfinic acid decarboxylase

CBS:

Cystathionine β-synthase

cGMP:

Cyclic guanosine monophosphate

CL:

Cystathionine-γ-lyase, or cystathionase

CNS:

Central nervous system

CO:

Carbon monoxide

CSF:

Cerebrospinal fluid

EGRAC:

Erythrocyte glutathione reductase activation coefficient

eNOS:

Endothelial nitric oxide synthase

FAD:

Flavin adenine dinucleotide

FMN:

Flavin mononucleotide

GABA:

γ-aminobutyric acid

GAD:

Glutamic acid decarboxylase

γ-GCS:

γ-glutamylcysteine synthetase

GMP:

Guanosine monophosphate

GR:

Glutathione reductase

GSH:

Reduced glutathione

GSSG:

Oxidized glutathione

GSTs:

Glutathione S-transferases

H2S:

Hydrogen sulphide

HO:

Heme oxygenase

HPLC:

High-performance liquid chromatography

iNOS:

Inducible nitric oxide synthase

MADD:

Multiple acyl coenzyme A dehydrogenase deficiency

MPTP:

1-methyl-4-phenyl-1,2,3,6-tetrahydropyridine

MS:

Methionine synthase

MTHFR:

Methylenetetrahydrofolate reductase

NADPH:

Nicotinamide adenine dinucleotide phosphate

nNOS:

Neuronal nitric oxide synthase

NO:

Nitric oxide

NOS:

Nitric oxide synthase

PD:

Parkinson’s disease

PLP:

Pyridoxal-5′-phosphate

PPO:

Pyridoxine(pyridoxamine)-5′-phosphate oxidase

Rbf:

Riboflavin

SHMT:

Hydroxymethyltransferase

VDR:

Vitamin D receptor

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Acknowlegments

The authors acknowledge the support of Brazilian governmental funding agencies FAPESP, CAPES, CNPq.

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Correspondence to Cicero G. Coimbra .

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© 2011 Springer Science+Business Media, LLC

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Sinigaglia-Coimbra, R., Lopes, A.C., Coimbra, C.G. (2011). Riboflavin Deficiency, Brain Function, and Health. In: Preedy, V., Watson, R., Martin, C. (eds) Handbook of Behavior, Food and Nutrition. Springer, New York, NY. https://doi.org/10.1007/978-0-387-92271-3_153

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  • DOI: https://doi.org/10.1007/978-0-387-92271-3_153

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  • Publisher Name: Springer, New York, NY

  • Print ISBN: 978-0-387-92270-6

  • Online ISBN: 978-0-387-92271-3

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