Raras
Buscar doenças, sintomas, genes...
Deficiência do transportador de riboflavina RFVT2-relacionada
ORPHA:572543CID-10 · G12.1CID-11 · LD2H.YOMIM 211530DOENÇA RARA

Qualquer síndrome de Brown-Vialetto-van Laere em que a causa da doença seja uma mutação no gene SLC52A3.

Mantido por Agente Raras·Colaborar como especialista →

Introdução

O que você precisa saber de cara

📋

Qualquer síndrome de Brown-Vialetto-van Laere em que a causa da doença seja uma mutação no gene SLC52A3.

Escala de raridade

CLASSIFICAÇÃO ORPHANET · BRASIL 2024
<1 / 1 000 000
Ultra-rara
<1/50k
Muito rara
1/20k
Rara
1/10k
Pouco freq.
1/5k
Incomum
1/2k
Prevalência
0.0
Worldwide
Início
Childhood
+ infancy
🏥
SUS: Cobertura mínimaScore: 15%
CID-10: G12.1
🇧🇷Dados SUS / DATASUS
PROCEDIMENTOS SIGTAP (4)
0202010694
Sequenciamento completo do exoma (WES)genetic_test
0604020011
Nusinersena (AME — Spinraza)biologic
0604380011
Risdiplam (AME — Evrysdi)rehabilitation
0301070040
Atendimento em reabilitação — doenças raras
Você se identifica com essa condição?
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Entender a doença

Do básico ao detalhe, leia no seu ritmo

Preparando trilha educativa...

Sinais e sintomas

O que aparece no corpo e com que frequência cada sintoma acontece

Partes do corpo afetadas

💪
Músculos
8 sintomas
🧠
Neurológico
6 sintomas
🫁
Pulmão
5 sintomas
👂
Ouvidos
2 sintomas
🦴
Ossos e articulações
2 sintomas
😀
Face
1 sintomas

+ 22 sintomas em outras categorias

Características mais comuns

44%prev.
Início juvenil
Frequência: 4/9
33%prev.
Estridor
Frequência: 3/9
33%prev.
Paralisia bulbar
Frequência: 3/9
33%prev.
Fraqueza muscular
Frequência: 3/9
33%prev.
Início na infância
Frequência: 3/9
22%prev.
Deficiência auditiva
Frequência: 2/9
48sintomas
Frequente (5)
Ocasional (19)
Sem dados (24)

Os sintomas variam de pessoa para pessoa. Abaixo estão as 48 características clínicas mais associadas, ordenadas por frequência.

Início juvenilJuvenile onset
Frequência: 4/944%
EstridorStridor
Frequência: 3/933%
Paralisia bulbarBulbar palsy
Frequência: 3/933%
Fraqueza muscularMuscle weakness
Frequência: 3/933%
Início na infânciaInfantile onset
Frequência: 3/933%

Linha do tempo da pesquisa

Publicações por ano — veja quando o interesse científico cresceu
Anos de pesquisa1desde 2026
Últimos 10 anos160publicações
Pico202527 papers
Linha do tempo
2026Hoje · 2026📈 2025Ano de pico
Publicações por ano (últimos 10 anos)

Encontrou um erro ou informação desatualizada? Sugira uma correção →

Genética e causas

O que está alterado no DNA e como passa nas famílias

Genes associados

2 genes identificados com associação a esta condição. Padrão de herança: Autosomal recessive.

SLC52A3Solute carrier family 52, riboflavin transporter, member 3Disease-causing germline mutation(s) inTolerante
FUNÇÃO

Plasma membrane transporter mediating the uptake by cells of the water soluble vitamin B2/riboflavin that plays a key role in biochemical oxidation-reduction reactions of the carbohydrate, lipid, and amino acid metabolism (PubMed:20463145, PubMed:22273710, PubMed:24264046, PubMed:27702554). Humans are unable to synthesize vitamin B2/riboflavin and must obtain it via intestinal absorption (PubMed:20463145)

LOCALIZAÇÃO

Apical cell membraneCell membraneNucleus membraneCytoplasm

VIAS BIOLÓGICAS (1)
Vitamin B2 (riboflavin) metabolism
MECANISMO DE DOENÇA

Brown-Vialetto-Van Laere syndrome 1

A rare neurologic disorder characterized by sensorineural hearing loss and a variety of cranial nerve palsies, which develop over a relatively short period of time in a previously healthy individual. Sensorineural hearing loss may precede the neurological signs. The course is invariably progressive, but the rate of decline is variable within and between families. With disease evolution, long tract signs, lower motor neuron signs, cerebellar ataxia and lower cranial nerve (III-VI) palsies develop, giving rise to a complex picture resembling amyotrophic lateral sclerosis. Diaphragmatic weakness and respiratory compromise are some of the most distressing features, leading to recurrent chest infections and respiratory failure, which are often the cause of patients' demise.

EXPRESSÃO TECIDUAL(Ubíquo)
Testículo
76.2 TPM
Rim - Medula
9.0 TPM
Próstata
8.7 TPM
Rim - Córtex
7.7 TPM
Intestino delgado
7.0 TPM
INTERAÇÕES PROTEICAS (2)
OUTRAS DOENÇAS (3)
progressive bulbar palsy of childhoodBrown-Vialetto-van Laere syndrome 1Brown-Vialetto-van Laere syndrome 2
HGNC:16187UniProt:Q9NQ40
SLC52A2Solute carrier family 52, riboflavin transporter, member 2Disease-causing germline mutation(s) inTolerante
FUNÇÃO

Plasma membrane transporter mediating the uptake by cells of the water soluble vitamin B2/riboflavin that plays a key role in biochemical oxidation-reduction reactions of the carbohydrate, lipid, and amino acid metabolism (PubMed:20463145, PubMed:22864630, PubMed:23243084, PubMed:24253200, PubMed:27702554). Humans are unable to synthesize vitamin B2/riboflavin and must obtain it via intestinal absorption (PubMed:20463145). May also act as a receptor for 4-hydroxybutyrate (Probable) (Microbial in

LOCALIZAÇÃO

Cell membrane

VIAS BIOLÓGICAS (1)
Vitamin B2 (riboflavin) metabolism
MECANISMO DE DOENÇA

Brown-Vialetto-Van Laere syndrome 2

An autosomal recessive progressive neurologic disorder characterized by early childhood onset of sensorineural deafness, bulbar dysfunction, and severe diffuse muscle weakness and wasting resulting in respiratory insufficiency and loss of independent ambulation. Because it results from a defect in riboflavin metabolism, some patients may benefit from high-dose riboflavin supplementation.

EXPRESSÃO TECIDUAL(Ubíquo)
Cerebelo
73.0 TPM
Fibroblastos
68.4 TPM
Cérebro - Hemisfério cerebelar
62.4 TPM
Testículo
55.2 TPM
Baço
46.1 TPM
INTERAÇÕES PROTEICAS (1)
OUTRAS DOENÇAS (2)
Brown-Vialetto-van Laere syndrome 2Brown-Vialetto-van Laere syndrome 1
HGNC:30224UniProt:Q9HAB3

Variantes genéticas (ClinVar)

295 variantes patogênicas registradas no ClinVar.

🧬 SLC52A2: NM_001363118.2(SLC52A2):c.916G>C (p.Gly306Arg) ()
🧬 SLC52A2: NM_001363118.2(SLC52A2):c.551dup (p.Leu185fs) ()
🧬 SLC52A2: NM_001363118.2(SLC52A2):c.588C>G (p.Phe196Leu) ()
🧬 SLC52A2: NM_001363118.2(SLC52A2):c.75_76insCCTGG (p.Ala26fs) ()
🧬 SLC52A2: NM_001363118.2(SLC52A2):c.1247C>T (p.Ser416Phe) ()
Ver todas no ClinVar

Vias biológicas (Reactome)

1 via biológica associada aos genes desta condição.

Diagnóstico

Os sinais que médicos procuram e os exames que confirmam

Carregando...

Tratamento e manejo

Remédios, cuidados de apoio e o que precisa acompanhar

Carregando informações de tratamento...

Onde tratar no SUS

Hospitais de referência no Brasil e o protocolo oficial do SUS (PCDT)

🇧🇷 Atendimento SUS — Deficiência do transportador de riboflavina RFVT2-relacionada

🗺️

Selecione um estado ou use sua localização para ver resultados.

Dados de DATASUS/CNES, SBGM, ABNeuro e Ministério da Saúde. Sempre confirme a disponibilidade diretamente com o estabelecimento.

Pesquisa ativa

Ensaios clínicos abertos e novidades científicas recentes

Pesquisa e ensaios clínicos

Nenhum ensaio clínico registrado para esta condição.

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Publicações mais relevantes

Timeline de publicações
0 papers (10 anos)
#1

Case Report: SLC52A2 variants cause Brown-Vialetto-Van Laere syndrome type 2, characterized by pure red cell aplastic anemia: clinical and genetic features of three Chinese children.

Frontiers in pediatrics2026

To report three Chinese pediatric cases of Brown-Vialetto-Van Laere syndrome type 2 (BVVLS2) presenting with pure red cell aplasia (PRCA) as the core manifestation, and to analyze their clinical features, molecular basis, and response to riboflavin therapy. We conducted a retrospective analysis of three pediatric cases, integrating detailed clinical phenotyping with comprehensive genetic analysis (including whole-exome/targeted sequencing, Sanger validation, and ACMG-based variant interpretation). To elucidate genotype-phenotype correlations, we interpreted these findings in the context of a literature review. All three patients carried compound heterozygous variants in the SLC52A2 gene. Each exhibited early-onset PRCA (onset age: 2 days to 6 months; hemoglobin: 29-67 g/L) and progressive neurodegeneration, including motor regression, axonal peripheral neuropathy, and sensorineural hearing loss. Riboflavin supplementation led to normalization of hemoglobin levels within four weeks and marked improvement in neurological function. This case series provides detailed longitudinal data on riboflavin-responsive PRCA as a core presenting feature of BVVLS2 and reports rare SLC52A2 variants in the Chinese population. Early riboflavin treatment effectively reversed anemia and partially improved neurological deficits, which may inform a new diagnostic and therapeutic approach for unexplained PRCA accompanied by neurodegenerative features.

#2

msCNN-PLM-FAD: Enhanced predicting FAD binding sites by using protein language representation combined with multiple separable windows convolutional neural networks.

Analytical biochemistry2026 Jun

The FAD binding sites classification problem is crucial because it is directly related to many diseases, such as flavoprotein-associated diseases, developmental disorders, digestive and lipid metabolism abnormalities, anemia, cancer, cardiovascular diseases, and neurological diseases. Researchers have conducted numerous studies to classify FAD binding sites, achieving varying levels of effectiveness. Nevertheless, significant potential for enhancement persists. Our study proposes msCNN-PLM-FAD, an innovative computational model predicting FAD binding sites in electron transport proteins using a sliding window feature extraction technique and pretrained protein language models (PLMs). Our approach combines a convolutional neural network-based window scanning technique able to capture various sequence features relevant to FAD binding sites with embeddings from the ESM PLM. Built on a dataset of 12,850 samples, the model outperformed previous studies, particularly in class-balance metrics, with an area under the curve (AUC) of 0.9614 and a Matthews correlation coefficient (MCC) of 0.7491, specificity of 0.9836, and accuracy of 0.9795, while maintaining a sensitivity of 0.8704. The results of this study demonstrate the potential to improve the accuracy of FAD binding site prediction, thereby promoting the development of drugs for diseases associated with FAD deficiency as well as therapeutic approaches that target bacterial FAD synthesis without affecting human health.

#3

Altered dimerization of certain riboflavin transporter 2 mutants: a possible source of UPR, altered calcium signalling and mitochondrial derangements in RTD2.

Archives of biochemistry and biophysics2026 Jan

Riboflavin transporter deficiency Type 2 (RTD2, OMIM #614707), formerly known as Brown-Vialetto-Van Laere Syndrome 2 (BVVLS 2), is a rare autosomal recessive neurodegenerative disorder caused by biallelic variants in the SLC52A2 gene, encoding for riboflavin transporter 2 (RFVT2). This transporter plays a critical role in flavin cofactor delivery, particularly in the brain. Clinically, RTD2 presents with progressive hearing loss, optic atrophy, muscle weakness, respiratory issues, and pontobulbar palsy. Current treatment involves high-dose riboflavin and other supplements. In this study we explored the molecular mechanisms behind RTD2, focusing on the dimerization of RFVT2 and the associated cellular stress mechanisms in patient-specific models. We demonstrated that RFVT2 exists as a homodimer and that pathogenic variants significantly impair its dimerization, which may contribute to the induction of ER stress. This hypothesis was supported by elevated levels of BiP, an ER stress marker, in patient iPSC-derived motor neurons. Similar findings were confirmed in patient-derived fibroblasts, where we also observed mitochondrial dysfunction and disrupted calcium signaling. Interestingly, no significant changes in FAD content were detected in both cell models, suggesting that proteotoxic stress may be a crucial pathogenic mechanism in RTD2, even in the absence of signs of FAD deficiency. FAD autofluorescence and FLIM measurements reinforce the occurrence of mitochondrial dysfunction in patient MNs. These findings provide insight into the pathogenic mechanisms of RTD2, highlighting the critical role of RFVT2 misfolding, ER stress, and mitochondrial dysfunction in this neurodegenerative disorder.

#4

Atypical phenotypic characteristics, mutation analysis and treatment in a family of riboflavin transporter deficiency caused by SLC52A3 variants.

Human molecular genetics2025 Nov 18

Variants in the SLC52A3 gene have been associated with riboflavin transporter deficiency type 3 (RTD3), a severe neurodegenerative disorder, typically inherited in an autosomal recessive manner. In this study, two SLC52A3 variants (NM_033409.4: c.62A > G [p.Asn21Ser] and c.161G > A [p.Gly54Glu]) were identified in a family with hereditary hearing loss through whole-exome sequencing. The compound heterozygous proband exhibited only late-onset, progressive, and symmetric sensorineural hearing loss over 23 yr, along with unilateral facial muscle spasm. A heterozygous carrier of the c.62A > G variant also exhibited optic nerve dysfunction, while no other neurological abnormalities were observed in the family. Although the proband's decreased serum riboflavin level has been improved through supplementation, no significant clinical improvement was observed. These findings further support the phenotypic variability, incomplete penetrance, and a potential autosomal dominant inheritance pattern of RTD3. We also underscore the importance of early genetic testing, timely and sustained riboflavin supplementation, and long-term follow-up in affected individuals.

#5

Identification of Riboflavin Metabolism Pathway in HepG2 Cells Expressing Genotype IV Swine Hepatitis E Virus ORF3 Protein.

Veterinary sciences2025 Sep 19

(1) Background: Hepatitis E (HE) is a novel zoonotic disease caused by hepatitis E virus (HEV). In particular, swine hepatitis E virus (SHEV) genotype IV is one of the main genotypes that infect humans. Open reading frame 3 (ORF3) is an important virulence protein of SHEV, which is involved in virus assembly, release, and regulation of host cell signaling pathways. Circular RNAs (circRNAs), as a type of competitive endogenous RNA (ceRNA), have a closed-loop structure and are special non-coding RNA molecules. They participates in the regulation of multiple biological processes by adsorbing microRNAs (miRNAs). Riboflavin, also known as vitamin B2, is a component of the coenzyme of flavoenzymes in the body. When there is a deficiency of riboflavin, it will affect the biological oxidation process of the host, leading to metabolic disorders. In addition, riboflavin can also affect the synthesis, transportation and decomposition of lipids in the body. It mainly maintains the normal transportation process of fat in the liver. Therefore, the deficiency of riboflavin will lead to the disorder of lipid metabolism in the body. Thus, viral hepatitis is closely related to riboflavin metabolism. However, there are very few reports on SHEV ORF3 affecting the riboflavin metabolism of target cells and thereby influencing viral infection. Therefore, this study investigates this highly significant scientific issue. (2) Methods: In the previous research of our group, adenovirus was used to mediate the overexpression of SHEV ORF3 genotype IV in HepG2 cells. Total RNA was extracted for high-throughput sequencing of circRNAs and transcriptome. KEGG functional enrichment analysis was performed on the data to identify the differentially expressed circRNAs and miRNAs after SHEV infection, and the relevant circRNA-miRNA network in the riboflavin metabolism pathway in HepG2 cells was found. (3) Results: We identified 4 circRNAs in the riboflavin metabolism pathway of HepG2 cells expressing the ORF3 protein of SHEV genotype IV and successfully found 26 relevant circRNA-miRNA networks. (4) Conclusion: We successfully screened and identified circRNAs related to riboflavin metabolism, further identifying the circRNA-miRNA network and its functional targets. For the first time, we investigated the key mechanism by which ORF3 protein influences riboflavin metabolic pathways in target cells through circRNAs, preliminarily revealing that ariboflavinosis can lead to lipid metabolic disorder in the organism. This indicates a close association between viral HE and riboflavin metabolism.

Publicações recentes

Ver todas no PubMed

📚 EuropePMCmostrando 159

2026

msCNN-PLM-FAD: Enhanced predicting FAD binding sites by using protein language representation combined with multiple separable windows convolutional neural networks.

Analytical biochemistry
2026

Case Report: SLC52A2 variants cause Brown-Vialetto-Van Laere syndrome type 2, characterized by pure red cell aplastic anemia: clinical and genetic features of three Chinese children.

Frontiers in pediatrics
2025

Progressive Weakness in Adulthood: Lipid Storage Myopathy With Suspected Sertraline-Associated Etiology.

Cureus
2025

Riboflavin Transporter Deficiency as a Cause of Progressive Encephalopathy.

Metabolites
2026

Altered dimerization of certain riboflavin transporter 2 mutants: a possible source of UPR, altered calcium signalling and mitochondrial derangements in RTD2.

Archives of biochemistry and biophysics
2025

Atypical phenotypic characteristics, mutation analysis and treatment in a family of riboflavin transporter deficiency caused by SLC52A3 variants.

Human molecular genetics
2025

[Neuromuscular diseases in pediatrics with specific treatments].

Medicina
2025

Identification of Riboflavin Metabolism Pathway in HepG2 Cells Expressing Genotype IV Swine Hepatitis E Virus ORF3 Protein.

Veterinary sciences
2025

Mitochondrial medicine in fatty acid oxidation disorders: insights from genetic discoveries and patient cell models.

Critical reviews in biochemistry and molecular biology
2025

Riboflavin in neurological diseases: therapeutic advances, metabolic insights, and emerging genetic strategies.

Frontiers in neurology
2025

Exploring neuropsychiatric manifestations of vitamin B complex deficiencies.

Frontiers in psychiatry
2025

Riboflavin Transporter Deficiency Type 2: Expanding the Phenotype of the Lebanese Founder Mutation p.Gly306Arg in the SLC52A2 Gene.

Metabolites
2025

Developmental riboflavin deficiency results in structural and functional changes in the neural retina and RPE.

Redox biology
2025

NDUFV1 mutation presenting as isolated progressive optic neuropathy: a unique manifestation of mitochondrial complex I deficiency.

BMJ case reports
2025

Is there a role for whole genome sequencing in idiopathic vocal fold immobility?

International journal of pediatric otorhinolaryngology
2025

Identification and Characterization of a Novel Biallelic SLC12A2 Variant Associated With Kilquist Syndrome (OMIM #619080).

American journal of medical genetics. Part A
2025

Adolescent late-onset riboflavin-responsive multiple acyl-CoA dehydrogenase deficiency manifesting with severe multi-organ failure: a case report.

Frontiers in pediatrics
2025

Long-term outcomes in children with riboflavin transporter deficiency and surveillance recommendations.

Developmental medicine and child neurology
2025

Identification and Physiological Analysis of Novel Riboflavin Transporter RFVT.

Biological &amp; pharmaceutical bulletin
2025

Long-Term Survival in Brown-Vialetto-Van Laere Syndrome: A Case Report Highlighting Respiratory Care.

Cureus
2025

Transient neonatal multiple acyl-CoA dehydrogenase deficiency due to riboflavin deficiency in an infant on total parenteral nutrition.

BMJ case reports
2025

Brown-Vialetto-Van Laere syndrome patients with unusual phenotypes from Indian ethnicity: Functional analysis of clinical variants in SLC52A2 and SLC52A3 genes.

Brain &amp; development
2025

Riboflavin transporter deficiency: AAV9-SLC52A2 gene therapy as a new therapeutic strategy.

Frontiers in cellular neuroscience
2025

Riboflavin, Retbindin, and Riboflavin Transporters in the Retina.

Advances in experimental medicine and biology
2025

Production of the recombinant human riboflavin transporters SLC52A1, 3 and functional assay in proteoliposomes.

Archives of biochemistry and biophysics
2025

Nanoencapsulation of vitamin B2 using chitosan-modified poly(lactic-co-glycolic acid) nanoparticles: Synthesis, characterization, and in vitro studies on simulated gastrointestinal stability and delivery.

Journal of food science
2025

Development of a riboflavin-responsive model of riboflavin transporter deficiency in zebrafish.

Human molecular genetics
2024

Child Neurology: Five-Year Update on Siblings With Riboflavin Transporter Deficiency: Stable Visual and Neurologic Status With Continued Riboflavin Therapy.

Neurology
2024

Riboflavin kinase binds and activates inducible nitric oxide synthase to reprogram macrophage polarization.

Redox biology
2024

Riboflavin transporter deficiency, the search for the undiagnosed: a retrospective data mining study.

Orphanet journal of rare diseases
2025

Transcriptome analysis of tilapia streptococcus agalactiae in response to baicalin.

Genes &amp; genomics
2025

Riboflavin supplementation in children with riboflavin transporter deficiency type 2 does not stop disease progression based on long-term follow-up.

Developmental medicine and child neurology
2024

Modeling riboflavin transporter deficiency type 2: from iPSC-derived motoneurons to iPSC-derived astrocytes.

Frontiers in cellular neuroscience
2024

Riboflavin transporter deficiency in young adults unmasked by dietary changes.

JIMD reports
2024

Atypical presentations in an RTD patient and report of novel SLC52A3 and SLC52A2 mutations.

Acta neurologica Belgica
2024

Molecular genetic analysis of candidate genes for glutaric aciduria type II in a cohort of patients from Queensland, Australia.

Molecular genetics and metabolism
2024

Diffusion-Weighted Magnetic Resonance Imaging (dMRI) and Cochlear Implant Outcomes in Axonal Auditory Neuropathy: A Case Report.

Journal of clinical medicine
2024

The various forms of hereditary motor neuron disorders and their historical descriptions.

Journal of neurology
2024

Case Report: A rare treatable metabolic syndrome (Brown-Vialetto-Van Laere syndrome) masquerading as chronic inflammatory demyelinating polyneuropathy from Saudi Arabia.

Frontiers in pediatrics
2024

Distal hereditary motor neuropathies.

Revue neurologique
2024

A riboflavin transporter deficiency presenting as pure red cell aplasia: a pediatric case report.

Frontiers in pediatrics
2024

C. elegans model of riboflavin transporter deficiency (RTD) disorder reveals deficits in synaptic transmission and movement.

Genes &amp; diseases
2024

A case report of riboflavin transporter deficiency: A novel heterozygous pathogenic variant in the SLC52A3 gene.

Molecular genetics and metabolism reports
2024

Development of a functional outcome measure for riboflavin transporter deficiency.

Journal of the peripheral nervous system : JPNS
2024

"De Novo" Hypercapnic Respiratory Failure Unmasking Neuromuscular Disorders: Experiences From a Tertiary Care Center and Review of Literature.

Journal of clinical neuromuscular disease
2024

Caspase-dependent apoptosis in Riboflavin Transporter Deficiency iPSCs and derived motor neurons.

Cell death discovery
2023

A Case Report of Riboflavin Treatment and Cochlear Implants in a 4-Year-Old Girl with Progressive Hearing Loss and Delayed Speech Development: Brown-Vialetto-Van Laere Syndrome.

The American journal of case reports
2023

"Liver Failure in an Infant of Late-Onset Glutaric Aciduria Type II": Case Report.

Indian journal of clinical biochemistry : IJCB
2023

Benefit of high-dose oral riboflavin therapy in riboflavin transporter deficiency.

Journal of the peripheral nervous system : JPNS
2023

Riboflavin 1 Transporter Deficiency: Novel SLC52A1 Variants and Expansion of the Phenotypic Spectrum.

Genes
2023

Late-onset multiple acyl-CoA dehydrogenase deficiency: an insidious presentation.

BMJ case reports
2023

Normal Outcome With Prenatal Intervention for Riboflavin Transporter Defect.

Pediatric neurology
2023

Role of Otolaryngologists in the Treatment of Patients With Riboflavin Transporter Deficiency: A Case Report.

Cureus
2023

Protein kinase MtCIPK12 modulates iron reduction in Medicago truncatula by regulating riboflavin biosynthesis.

Plant, cell &amp; environment
2022

Two Rare Cases of Long Surviving Riboflavin Transporter Deficiency with Co-Existing Adenosine Monophosphate Deaminase (AMP) Deficiency.

Brain sciences
2022

Retrograde response to mitochondrial dysfunctions associated to LOF variations in FLAD1 exon 2: unraveling the importance of RFVT2.

Free radical research
2023

Apoplast utilisation of nanohaematite initiates parallel suppression of RIBA1 and FRO1&3 in Cucumis sativus.

NanoImpact
2022

Redox properties and PAS domain structure of the Escherichia coli energy sensor Aer indicate a multistate sensing mechanism.

The Journal of biological chemistry
2023

Ocular Biomarkers of Riboflavin Transporter Deficiency.

Journal of neuro-ophthalmology : the official journal of the North American Neuro-Ophthalmology Society
2022

Combined isobutyryl-CoA and multiple acyl-CoA dehydrogenase deficiency in a boy with altered riboflavin homeostasis.

JIMD reports
2022

New Insights into the Neurodegeneration Mechanisms Underlying Riboflavin Transporter Deficiency (RTD): Involvement of Energy Dysmetabolism and Cytoskeletal Derangement.

Biomedicines
2022

Mitochondrial FAD shortage in SLC25A32 deficiency affects folate-mediated one-carbon metabolism.

Cellular and molecular life sciences : CMLS
2022

Electrodiagnostic Findings in Riboflavin Transporter Deficiency Type 2.

Journal of clinical neuromuscular disease
2022

Cochlear Implant in Brown-Vialetto-Van Laere Syndrome Patient.

The journal of international advanced otology
2022

SLC gene mutations and pediatric neurological disorders: diverse clinical phenotypes in a Saudi Arabian population.

Human genetics
2022

Hypoketotic hypoglycemia without neuromuscular complications in patients with SLC25A32 deficiency.

European journal of human genetics : EJHG
2021

Metabolomics Analysis of the Effect of GAT-2 Deficiency on Th1 Cells in Mice.

Journal of proteome research
2022

Impact of natural mutations on the riboflavin transporter 2 and their relevance to human riboflavin transporter deficiency 2.

IUBMB life
2021

To Be or No B2: A Rare Cause of Stridor and Weakness in a Toddler.

Child neurology open
2021

An rfuABCD-Like Operon and Its Relationship to Riboflavin Utilization and Mammalian Infectivity by Borrelia burgdorferi.

Infection and immunity
2022

A case report of sudden-onset auditory neuropathy spectrum disorder associated with Brown-Vialetto-Van Laere syndrome (riboflavin transporter deficiency).

International journal of audiology
2021

Brown Vialetto Van Laere syndrome: presenting with left ventricular non-compaction and mimicking mitochondrial disorders.

The Turkish journal of pediatrics
2021

Riboflavin in Neurological Diseases: A Narrative Review.

Clinical drug investigation
2021

SLC22A14 is a mitochondrial riboflavin transporter required for sperm oxidative phosphorylation and male fertility.

Cell reports
2021

A case of adult onset Sandhoff disease that mimics Brown-Vialetto-Van Laere syndrome.

Neuromuscular disorders : NMD
2021

ETF dehydrogenase advances in molecular genetics and impact on treatment.

Critical reviews in biochemistry and molecular biology
2021

Functional Study of the Human Riboflavin Transporter 2 Using Proteoliposomes System.

Methods in molecular biology (Clifton, N.J.)
2021

Complete Deletion of Slc52a2 Causes Embryonic Lethality in Mice.

Biological &amp; pharmaceutical bulletin
2021

Altered cytoskeletal arrangement in induced pluripotent stem cells (iPSCs) and motor neurons from patients with riboflavin transporter deficiency.

Disease models &amp; mechanisms
2021

Electron transfer flavoprotein and its role in mitochondrial energy metabolism in health and disease.

Gene
2021

Brown-Vialetto-Van Laere and Fazio-Londe syndromes: SLC52A3 mutations with puzzling phenotypes and inheritance.

European journal of neurology
2020

Mitochondrial Abnormalities in Induced Pluripotent Stem Cells-Derived Motor Neurons from Patients with Riboflavin Transporter Deficiency.

Antioxidants (Basel, Switzerland)
2021

Disorders of flavin adenine dinucleotide metabolism: MADD and related deficiencies.

The international journal of biochemistry &amp; cell biology
2020

Effect of riboflavin deficiency on development of the cerebral cortex in Slc52a3 knockout mice.

Scientific reports
2020

Brown-Vialetto-Van Laere syndrome: A rare case report of MND mimic.

Neurology India
2020

Late-onset riboflavin transporter deficiency: a treatable mimic of various motor neuropathy aetiologies.

Journal of neurology, neurosurgery, and psychiatry
2020

Antioxidant Amelioration of Riboflavin Transporter Deficiency in Motoneurons Derived from Patient-Specific Induced Pluripotent Stem Cells.

International journal of molecular sciences
2020

Hematologic presentation and the role of untargeted metabolomics analysis in monitoring treatment for riboflavin transporter deficiency.

American journal of medical genetics. Part A
2020

Mitochondrial and Peroxisomal Alterations Contribute to Energy Dysmetabolism in Riboflavin Transporter Deficiency.

Oxidative medicine and cellular longevity
2020

Mitochondrial energetic impairment in a patient with late-onset glutaric acidemia Type 2.

American journal of medical genetics. Part A
2020

Development of Novel Experimental Models to Study Flavoproteome Alterations in Human Neuromuscular Diseases: The Effect of Rf Therapy.

International journal of molecular sciences
2020

Riboflavin Deficiency-Implications for General Human Health and Inborn Errors of Metabolism.

International journal of molecular sciences
2020

Differential Metabolomic Analysis of Liver Tissues from Rat Models of Parenteral Nutrition-Associated Liver Disease.

BioMed research international
2020

A juvenile ALS-like phenotype dramatically improved after high-dose riboflavin treatment.

Annals of clinical and translational neurology
2020

In Silico Identification of a Key Residue for Substrate Recognition of the Riboflavin Membrane Transporter RFVT3.

Journal of chemical information and modeling
2020

The Clinical Journey of Patients with Riboflavin Transporter Deficiency Type 2.

Journal of child neurology
2019

Culturable gut bacteria lack Escherichia coli in children with phenylketonuria.

New microbes and new infections
2021

Riboflavin deficiency alters cholesterol homeostasis partly by reducing apolipoprotein B100 synthesis in HepG2 cells.

International journal for vitamin and nutrition research. Internationale Zeitschrift fur Vitamin- und Ernahrungsforschung. Journal international de vitaminologie et de nutrition
2019

Reconstitution in Proteoliposomes of the Recombinant Human Riboflavin Transporter 2 (SLC52A2) Overexpressed in E. coli.

International journal of molecular sciences
2019

FLAD1-associated multiple acyl-CoA dehydrogenase deficiency identified by newborn screening.

Molecular genetics &amp; genomic medicine
2019

Determinants of Riboflavin Responsiveness in Multiple Acyl-CoA Dehydrogenase Deficiency.

Pediatric neurology
2019

Flavodoxin with an air-stable flavin semiquinone in a green sulfur bacterium.

Photosynthesis research
2019

Riboflavin deficiency affects lipid metabolism partly by reducing apolipoprotein B100 synthesis in rats.

The Journal of nutritional biochemistry
2019

Flavin adenine dinucleotide synthase deficiency due to FLAD1 mutation presenting as multiple acyl-CoA dehydrogenation deficiency-like disease: A case report.

Brain &amp; development
2019

Maternal diet deficient in riboflavin induces embryonic death associated with alterations in the hepatic proteome of duck embryos.

Nutrition &amp; metabolism
2019

An update on the genetics, clinical presentation, and pathomechanisms of human riboflavin transporter deficiency.

Journal of inherited metabolic disease
2019

ETF-QO Mutants Uncoupled Fatty Acid β-Oxidation and Mitochondrial Bioenergetics Leading to Lipid Pathology.

Cells
2019

Disorders of riboflavin metabolism.

Journal of inherited metabolic disease
2018

Iron Regulation in Clostridioides difficile.

Frontiers in microbiology
2018

Development and validation of the Charcot-Marie-Tooth Disease Infant Scale.

Brain : a journal of neurology
2019

Next generation sequencing of RNA reveals novel targets of resveratrol with possible implications for Canavan disease.

Molecular genetics and metabolism
2018

Successful treatment of a genetic childhood ataxia due to riboflavin transporter deficiency.

Cerebellum &amp; ataxias
2019

Oral therapy for riboflavin transporter deficiency - What is the regimen of choice?

Parkinsonism &amp; related disorders
2019

Cochlear implantation in children with auditory neuropathy: Lessons from Brown-Vialetto-Van Laere syndrome.

Cochlear implants international
2018

Myopathy with MTCYB mutation mimicking Multiple Acyl-CoA Dehydrogenase Deficiency.

Revue neurologique
2019

A Novel Truncating FLAD1 Variant, Causing Multiple Acyl-CoA Dehydrogenase Deficiency (MADD) in an 8-Year-Old Boy.

JIMD reports
2018

A reexamination on the deficiency of riboflavin accumulation in Malpighian tubules in larval translucent mutants of the silkworm, Bombyx mori.

Genetica
2018

Clinical, biochemical and genetic spectrum of 70 patients with ACAD9 deficiency: is riboflavin supplementation effective?

Orphanet journal of rare diseases
2018

[Modern approaches to components of therapy of patients with diabetes mellitus operated on for malignant neoplasms of small pelvic organs].

Khirurgiia
2018

Genetic, Radiologic, and Clinical Variability in Brown-Vialetto-van Laere Syndrome.

Seminars in pediatric neurology
2018

The First Case of Riboflavin Transporter Deficiency in sub-Saharan Africa.

Seminars in pediatric neurology
2018

Brown-Vialetto-Van Laere syndrome: a novel diagnosis to a common presentation.

BMJ case reports
2018

The Nicotiana tabacum ABC transporter NtPDR3 secretes O-methylated coumarins in response to iron deficiency.

Journal of experimental botany
2018

Riboflavin Depletion Promotes Tumorigenesis in HEK293T and NIH3T3 Cells by Sustaining Cell Proliferation and Regulating Cell Cycle-Related Gene Transcription.

The Journal of nutrition
2018

Transcriptional profiling of liver in riboflavin-deficient chicken embryos explains impaired lipid utilization, energy depletion, massive hemorrhaging, and delayed feathering.

BMC genomics
2018

Transcriptomics reveals a cross-modulatory effect between riboflavin and iron and outlines responses to riboflavin biosynthesis and uptake in Vibrio cholerae.

Scientific reports
2018

Oxidation of the FAD cofactor to the 8-formyl-derivative in human electron-transferring flavoprotein.

The Journal of biological chemistry
2017

Targeting flavin-containing enzymes eliminates cancer stem cells (CSCs), by inhibiting mitochondrial respiration: Vitamin B2 (Riboflavin) in cancer therapy.

Aging
2018

Riboflavin transporter deficiency mimicking mitochondrial myopathy caused by complex II deficiency.

American journal of medical genetics. Part A
2018

Bombyx ortholog of the Drosophila eye color gene brown controls riboflavin transport in Malpighian tubules.

Insect biochemistry and molecular biology
2017

Severe riboflavin deficiency induces alterations in the hepatic proteome of starter Pekin ducks.

The British journal of nutrition
2018

Established and novel measures of upper limb impairment in children with Charcot-Marie-tooth disease type 1A and riboflavin transporter deficiency type 2.

Journal of the peripheral nervous system : JPNS
2017

An intronic variation in SLC52A1 causes exon skipping and transient riboflavin-responsive multiple acyl-CoA dehydrogenation deficiency.

Molecular genetics and metabolism
2017

Ablation of the riboflavin-binding protein retbindin reduces flavin levels and leads to progressive and dose-dependent degeneration of rods and cones.

The Journal of biological chemistry
2017

A Case of Brown-Vialetto-Van Laere Syndrome Due To a Novel Mutation in SLC52A3 Gene: Clinical Course and Response to Riboflavin.

Child neurology open
2018

Adaptive regulation of riboflavin transport in heart: effect of dietary riboflavin deficiency in cardiovascular pathogenesis.

Molecular and cellular biochemistry
2017

Pathogenic p62/SQSTM1 mutations impair energy metabolism through limitation of mitochondrial substrates.

Scientific reports
2017

Riboflavin Responsive Mitochondrial Dysfunction in Neurodegenerative Diseases.

Journal of clinical medicine
2017

Novel SLC25A32 mutation in a patient with a severe neuromuscular phenotype.

European journal of human genetics : EJHG
2017

FAD Regulates CRYPTOCHROME Protein Stability and Circadian Clock in Mice.

Cell reports
2017

Brown-Vialetto-Van Laere Syndrome as a Mimic of Neuroimmune Disorders: 3 Cases From the Clinic and Review of the Literature.

Journal of child neurology
2017

Plasma Riboflavin Level is Associated with Risk, Relapse, and Survival of Esophageal Squamous Cell Carcinoma.

Nutrition and cancer
2017

The putative flavin carrier family FlcA-C is important for Aspergillus fumigatus virulence.

Virulence
2016

Disruption of Slc52a3 gene causes neonatal lethality with riboflavin deficiency in mice.

Scientific reports
2016

Riboflavin transport and metabolism in humans.

Journal of inherited metabolic disease
2016

Riboflavin-Responsive and -Non-responsive Mutations in FAD Synthase Cause Multiple Acyl-CoA Dehydrogenase and Combined Respiratory-Chain Deficiency.

American journal of human genetics
2016

SLC52A3, A Brown-Vialetto-van Laere syndrome candidate gene is essential for mouse development, but dispensable for motor neuron differentiation.

Human molecular genetics
2016

Clinical presentation and outcome of riboflavin transporter deficiency: mini review after five years of experience.

Journal of inherited metabolic disease
2016

SLC25A32 Mutations and Riboflavin-Responsive Exercise Intolerance.

The New England journal of medicine
2016

Auditory neuropathy in Brown-Vialetto-Van Laere syndrome due to riboflavin transporter RFVT2 deficiency.

Developmental medicine and child neurology
2016

Disease-Causing SDHAF1 Mutations Impair Transfer of Fe-S Clusters to SDHB.

Cell metabolism
2016

Conditional (intestinal-specific) knockout of the riboflavin transporter-3 (RFVT-3) impairs riboflavin absorption.

American journal of physiology. Gastrointestinal and liver physiology
2016

Cucumis sativus secretes 4'-ketoriboflavin under iron-deficient conditions.

Bioscience, biotechnology, and biochemistry
2016

Hyperprolinemia in Type 2 Glutaric Aciduria and MADD-Like Profiles.

JIMD reports
2015

Molecular Mechanisms Mediating the Adaptive Regulation of Intestinal Riboflavin Uptake Process.

PloS one
2016

Pathophysiology of motor dysfunction in a childhood motor neuron disease caused by mutations in the riboflavin transporter.

Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology
2015

Effects of p67phox on the mitochondrial oxidative state in the kidney of Dahl salt-sensitive rats: optical fluorescence 3-D cryoimaging.

American journal of physiology. Renal physiology
2015

Riboflavin transporter-2 (rft-2) of Caenorhabditis elegans: Adaptive and developmental regulation.

Journal of biosciences
2015

Electron transfer by human wild-type and A287P mutant P450 oxidoreductase assessed by transient kinetics: functional basis of P450 oxidoreductase deficiency.

The Biochemical journal

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Referências e fontes

Bases de dados externas citadas neste artigo

Publicações científicas

Artigos indexados no PubMed ligados a esta doença no grafo RarasNet — título, periódico e PMID direto da fonte, sem intermediação de IA.

  1. Case Report: SLC52A2 variants cause Brown-Vialetto-Van Laere syndrome type 2, characterized by pure red cell aplastic anemia: clinical and genetic features of three Chinese children.
    Frontiers in pediatrics· 2026· PMID 41727768mais citado
  2. msCNN-PLM-FAD: Enhanced predicting FAD binding sites by using protein language representation combined with multiple separable windows convolutional neural networks.
    Analytical biochemistry· 2026· PMID 41763284mais citado
  3. Altered dimerization of certain riboflavin transporter 2 mutants: a possible source of UPR, altered calcium signalling and mitochondrial derangements in RTD2.
    Archives of biochemistry and biophysics· 2026· PMID 41285215mais citado
  4. Atypical phenotypic characteristics, mutation analysis and treatment in a family of riboflavin transporter deficiency caused by SLC52A3 variants.
    Human molecular genetics· 2025· PMID 41060834mais citado
  5. Identification of Riboflavin Metabolism Pathway in HepG2 Cells Expressing Genotype IV Swine Hepatitis E Virus ORF3 Protein.
    Veterinary sciences· 2025· PMID 41012837mais citado
  6. Brown-Vialetto-Van Laere and Fazio-Londe syndromes: SLC52A3 mutations with puzzling phenotypes and inheritance.
    Eur J Neurol· 2021· PMID 33325104recente
  7. Impaired riboflavin transport due to missense mutations in SLC52A2 causes Brown-Vialetto-Van Laere syndrome.
    J Inherit Metab Dis· 2012· PMID 22864630recente
  8. Exome sequencing in Brown-Vialetto-van Laere syndrome.
    Am J Hum Genet· 2010· PMID 20920669recente
  9. Brown-Vialetto-Van Laere syndrome, a ponto-bulbar palsy with deafness, is caused by mutations in c20orf54.
    Am J Hum Genet· 2010· PMID 20206331recente
  10. Anesthesia in Brown-Vialetto-Van Laere syndrome.
    Paediatr Anaesth· 2009· PMID 19807888recente

Bases de dados e fontes oficiais

Identificadores e referências canônicas usadas para montar este verbete.

  1. ORPHA:572543(Orphanet)
  2. OMIM OMIM:211530(OMIM)
  3. MONDO:0024537(MONDO)
  4. GARD:18010(GARD (NIH))
  5. Variantes catalogadas(ClinVar)
  6. Busca completa no PubMed(PubMed)

Dados compilados pelo RarasNet a partir de fontes abertas (Orphanet, OMIM, MONDO, PubMed/EuropePMC, ClinicalTrials.gov, DATASUS, PCDT/MS). Este conteúdo é informativo e não substitui avaliação médica.

Conteúdo mantido por Agente Raras · Médicos e pesquisadores podem colaborar

Compêndio · Raras BR

Deficiência do transportador de riboflavina RFVT2-relacionada

ORPHA:572543 · MONDO:0024537
Prevalência
<1 / 1 000 000
Herança
Autosomal recessive
CID-10
G12.1 · Outras atrofias musculares espinais hereditárias
CID-11
Início
Childhood, Infancy
Prevalência
0.0 (Worldwide)
MedGen
UMLS
C0796274
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