Introdução
O que você precisa saber de cara
Leucodistrofia relacionada ao POLR3 é uma doença hereditária rara que é causada por mutações em genes da subunidade da RNA polimerase III, como: POLR3A, POLR3B, POLR3K, POLR3D, POLR1C. Pacientes com leucodistrofia relacionada ao POLR3 geralmente apresentam déficits cognitivos, com ou sem problemas endócrinos (tais como: baixa estatura, hipogonadismo hipogonadotrófico, anomalias dentárias e/ou miopia). Esta doença geralmente tem início na primeira infância, embora existam casos de início tardio.
Escala de raridade
<1/50kMuito rara
1/20kRara
1/10kPouco freq.
1/5kIncomum
1/2k
Encontrou um erro ou informação desatualizada? Sugira uma correção →
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
+ 12 sintomas em outras categorias
Características mais comuns
Os sintomas variam de pessoa para pessoa. Abaixo estão as 41 características clínicas mais associadas, ordenadas por frequência.
Linha do tempo da pesquisa
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
1 gene identificado com associação a esta condição. Padrão de herança: Autosomal recessive.
Catalytic core component of RNA polymerase III (Pol III), a DNA-dependent RNA polymerase which synthesizes small non-coding RNAs using the four ribonucleoside triphosphates as substrates. Synthesizes 5S rRNA, snRNAs, tRNAs and miRNAs from at least 500 distinct genomic loci (PubMed:19609254, PubMed:19631370, PubMed:20413673, PubMed:33335104, PubMed:33558764, PubMed:33558766, PubMed:34675218, PubMed:35637192, PubMed:9331371). Pol III-mediated transcription cycle proceeds through transcription init
NucleusCytoplasm, cytosol
Leukodystrophy, hypomyelinating, 7, with or without oligodontia and/or hypogonadotropic hypogonadism
An autosomal recessive neurodegenerative disorder characterized by childhood onset of progressive motor decline manifest as spasticity, ataxia, tremor, and cerebellar signs, as well as mild cognitive regression. Other features may include hypodontia or oligodontia and hypogonadotropic hypogonadism. There is considerable inter- and intrafamilial variability.
Variantes genéticas (ClinVar)
436 variantes patogênicas registradas no ClinVar.
Vias biológicas (Reactome)
7 vias biológicas associadas aos genes desta condição.
Diagnóstico
Os sinais que médicos procuram e os exames que confirmam
Tratamento e manejo
Remédios, cuidados de apoio e o que precisa acompanhar
Onde tratar no SUS
Hospitais de referência no Brasil e o protocolo oficial do SUS (PCDT)
🇧🇷 Atendimento SUS — Síndrome de tremor – ataxia – hipomielinização central
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.
Publicações mais relevantes
Dysregulated lipid metabolism and hypomyelination in postnatal peroxisome-deficient Pex2 knockout Zellweger mice.
Peroxisomes are dynamic organelles that play a crucial role in cellular metabolism, particularly in fatty acid degradation, cholesterol homeostasis and reactive oxygen species metabolism. Their dysfunction is associated with severe neurological disorders, including Zellweger spectrum disorders (ZSD) and X-linked adrenoleukodystrophy (X-ALD). In this study, we investigated the relationship between cholesterol homeostasis and myelination in postnatal peroxisome-deficient Pex2 knockout mice. We dissected the central nervous system (CNS) of 10-day-old (P10) control and Pex2 -/- mice into five regions: spinal cord, brainstem, cerebellum, diencephalon and cerebral cortex. Catalase activity, a marker enzyme of peroxisomes, was significantly increased in CNS regions of Pex2 -/- mice, indicating an oxidative imbalance. Proteomic analysis revealed significant alterations in peroxisomal proteins and pathways related to neurodegenerative diseases, cholesterol and fatty acid metabolism and mRNA processing. Cholesterol biosynthesis was particularly dysregulated: enzyme activities, mRNA, and protein levels were reduced in white matter regions but increased in the cerebral cortex. The elevated desmosterol levels in the brain of Pex2 -/- mice indicate impaired cholesterol synthesis. Sphingolipid metabolism was also altered in the peroxisome-deficient CNS, as the protein levels of enzymes dihydroceramide desaturase 1, ceramide synthase 2, fatty acid 2-hydroxylase, and UDP-glycosyltransferase 8 were significantly decreased. Myelination was significantly reduced throughout the CNS, as evidenced by decreased activities of the myelin marker 2',3'-cyclic nucleotide 3'-phosphodiesterase (CNP) and decreased mRNA and protein levels of myelin-associated proteins. The consistent decrease in ribosomal protein S6 phosphorylation in the CNS of Pex2 -/- mice suggests that decreased mechanistic target of rapamycin complex 1 (mTORC1) activity contributes to hypomyelination. Gene expression analysis revealed an upregulation of pro-inflammatory cytokines and altered expression of some homeostatic and disease-associated microglial (DAM) genes. However, full DAM activation was not yet observed in Pex2 -/- mice at P10. In conclusion, this study shows that systemic peroxisome deficiency leads to severe hypomyelination and dysregulation of cholesterol and fatty acid metabolism in the CNS, providing new insights into the pathophysiology of peroxisomal disorders.
The Impact of RNA Polymerase III-Related Leukodystrophy on Nonaffected Family Members: A Qualitative Study.
RNA polymerase III-related hypomyelinating leukodystrophy (POLR3-HLD) is a rare, neurodegenerative, brain white matter disorder characterized by hypomyelination, hypodontia, and hypogonadotropic hypogonadism. Due to the complex and progressive nature of this disorder, parents and siblings of patients face many potential challenges and stressors. We, therefore, sought to explore parents' and siblings' experiences to understand their specific needs and identify modifiable factors to limit familial burden and improve their quality of life. We conducted semistructured interviews with parents and siblings of patients with POLR3-HLD. Interview questions focused on the financial, emotional, and psychosocial impacts on parents, as well as siblings' relationship with their affected sibling and the psychosocial impacts they may have experienced. All interviews were recorded, transcribed, and analyzed using reflexive thematic analysis. Through the coding process, themes surrounding the impact on and experiences of parents and siblings were developed. Nineteen semistructured interviews with 24 parents and nine interviews with 9 siblings were completed between March and October 2023 and February and May 2024, respectively. Four themes from parent interviews included extensive caregiver burden, emotional and psychosocial challenges, the importance of parental self-health, and comfort in the leukodystrophy community. Three themes from sibling interviews included the spectrum of emotional impacts, limited knowledge about POLR3-HLD, and adapting to their sibling's needs. This study provides a comprehensive understanding of the family experience, identifying the common challenges and specific needs of parents and siblings, highlighting areas of improvement in the global care offered to this vulnerable patient population.
Aicardi-Goutières Syndrome: Insights from a Middle Eastern Case Series.
Aicardi-Goutières syndrome (AGS) is a rare, genetically-determined spectrum of neurodegenerative disorders that remains poorly understood. Owing to the paucity of data from Middle-Eastern population, we aimed to delineate the clinical, radiological, and genetic features of AGS in an under-represented Middle-Eastern cohort. A retrospective case-series review was performed of all genetically-confirmed AGS cases managed at a tertiary pediatric hospital in Qatar between November 2016 and December 2024. Demographic, clinical, radiologic, and genetic data were extracted; white-matter (WM) disease severity and imaging course were graded, and associations with genotype were explored. Fifteen individuals (73.3% male; 80% consanguinity) were identified. Symptom onset occurred in the infantile age in 86.7%, with developmental delay or regression (100%), intellectual impairment (76.9%), and impaired motor function (69.2%) predominating. Two siblings with SAMHD1-homozygous variant were neurologically normal but had chronic arthritis. Genetic variants were identified in RNASEH2B (26.7%), RNASEH2A and TREX1 (each 20%), followed by ADAR1 and SAMHD1 (each 13.3%), and RNASEH2C (6.7%); 80% of variants were homozygous. Radiological assessment was suggestive of the disease in 40% of the cases. Initial neuroimaging revealed focal WM disease in 76.9%, calcifications in 53.8%, hypomyelination in 38.5%, and basal-ganglia involvement in 30.8%. WM disease was absent (13.3%), mild (40.0%), moderate (40%), or severe (6.7%); follow-up imaging showed stable (10%), regressive (30%), progressive (40%), or progressive-then-regressive (20%) course of imaging findings, independent of the genotype and clinical course. Genotype correlated significantly with WM disease severity at presentation (p < 0.05), but not with longitudinal imaging trajectory. Intrafamilial radiological discordance was observed in half of the family clusters. This AGS series from a Middle-Eastern population broadens the phenotypic spectrum, highlighting high homozygosity and RNASEH2 predominance in a highly consanguineous population, a significant genotype-WM disease severity link, and radiologic variability independent of genotype or clinical course. Awareness of these patterns may inform population-based testing and management strategies. AGS =Aicardi-Goutières syndrome; VUS = variant of uncertain significance.
POLR3A-related syndrome complicated with cerebral abscesses: a case report and literature review.
POLR3A gene-related syndrome is a complex genetic disorder with diverse clinical manifestations. Understanding its characteristics is crucial for diagnosis and management. Previous studies have reported various aspects of this syndrome, yet a comprehensive analysis of different Variant sites and their associated phenotypes remains necessary. This study presents a case of POLR3A-related syndrome in a pediatric patient. Symptom onset occurred after 2 years of age, initially presenting with gait disturbance. As the disease progressed, gait instability worsened progressively and was accompanied by dysarthria, intellectual developmental impairment, and tremor. Subsequent neuroimaging revealed multiple intracerebral infectious lesions with abscess formation. Whole-genome sequencing identified a homozygous c.1771-6C>G variant in the POLR3A gene. This variant has been previously reported as pathogenic at this locus; however, the complication of multiple intracerebral infections and abscess formation represents a previously unreported manifestation. It is noteworthy that the parents of the proband were consanguineous (first-degree relatives). A review of 60 unrelated probands with POLR3A-related syndrome was conducted based on previously published cases. The analysis revealed no significant sex difference in disease occurrence. The median age of onset was approximately 8 years, with common initial symptoms including gait disturbance and cognitive developmental impairment. Neuroimaging findings indicated cerebral atrophy in 31 cases (66.0%) and white matter hypomyelination in 17 cases (34.7%). Among the reported genetic variants, c.1909 + 22G>A was the most prevalent, identified in 19 families (17.8%), followed by c.1771-6C>G in 9 families (6.4%). Furthermore, patients with different variant sites displayed heterogeneity in initial symptoms, clinical presentations, and imaging characteristics. This comprehensive review enhances the understanding of the phenotypic and genotypic spectrum of POLR3A-related syndrome.
Human CNTNAP1 Variants Associated With Severe Neurological Deficits: Additional Cases and Literature Review.
CNTNAP1 encodes the Contactin-Associated Protein 1 (CNTNAP1), also known as Caspr1, which is a transmembrane protein critical for nervous system function. CNTNAP1 is localized to the paranodal regions of all myelinated axons, flanking either side of the node of Ranvier. It plays a vital role in axonal domain organization and is essential for the propagation of action potentials along nerve fibers. This specialized arrangement of axonal domains, which contain distinct molecular complexes, enables saltatory conduction and significantly increases the speed and efficiency of neuronal communication. To date, there are 47 children with biallelic CNTNAP1 variants who have been reported exhibiting a wide spectrum of phenotypes including congenital hypomyelinating neuropathy, hypotonia, and joint contractures among other clinical features. In this review, we compiled all previously published cases and detailed the specific genetic variants of every known individual, including clinical manifestations. Additionally, we present seven new cases of individuals identified through direct collaborations with clinicians and families, bringing the total to 54 individuals who harbor biallelic variants in CNTNAP1. This review and the additional case studies demonstrate that while children with CNTNAP1 mutations can present with a broad spectrum of symptoms, there is a recurrence of key clinical features across these cases. These key features commonly include respiratory distress, generalized hypotonia, hypomyelination, intellectual disabilities, and reduced life expectancy. These newly described cases provide valuable insights into the phenotypic diversity of CNTNAP1 variants, deepening our understanding of the clinical impact in patients with this rare genetic disorder.
Publicações recentes
Further delineation of Wiedemann-Rautenstrauch syndrome linked with POLR3A.
ANKLE2-related microcephaly: A variable microcephaly syndrome resembling Zika infection.
A new entity of hypomyelination with atrophy of basal ganglia and cerebellum-like syndrome with bilateral developmental cataract.
Cerebral folate transporter deficiency syndrome in three siblings: Why genetic testing for developmental and epileptic encephalopathies should be performed early and include the FOLR1 gene.
A hypomyelinating leukodystrophy in German Shepherd dogs.
📚 EuropePMCmostrando 199
Aicardi-Goutières Syndrome: Insights from a Middle Eastern Case Series.
AJNR. American journal of neuroradiologyDysregulated lipid metabolism and hypomyelination in postnatal peroxisome-deficient Pex2 knockout Zellweger mice.
Frontiers in molecular neurosciencePOLR3A-related syndrome complicated with cerebral abscesses: a case report and literature review.
Frontiers in geneticsHuman CNTNAP1 Variants Associated With Severe Neurological Deficits: Additional Cases and Literature Review.
Muscle & nerveConfirmation of biallelic VPS11 variants as a cause of complex dystonic syndrome.
Clinical parkinsonism & related disordersThe Impact of RNA Polymerase III-Related Leukodystrophy on Nonaffected Family Members: A Qualitative Study.
Pediatric neurologyHemiconvulsion-hemiplegia-epilepsy syndrome in a child with an underlying hypomyelinating leukodystrophy: a previously unreported association.
Pediatric radiologyGenetic, Clinical and Neuroradiological Spectrum of MED-Related Disorders: An Updated Review.
GenesA novel SLC17A5 variant in infantile sialic acid storage disease with hyporegenerative anemia: Neuroimaging insights and literature review.
Molecular genetics and metabolism reportsMCT8 Deficiency in Two Brothers With a Novel Deletion Mutation in SLC16A2.
Case reports in geneticsThe Genetic Basis of Neurological Disorders: Missense and Nonsense Variants in Three Pakistani Families With Syndromic Intellectual Disability.
Annals of human geneticsExpanding the Phenotype Spectrum of β-Mannosidosis.
Neurology. GeneticsPOLR3B-Related Hypomyelinating Leukodystrophy Type 8 (4H Syndrome): A Case Series of Two Siblings.
CureusNeonatal sevoflurane exposure disrupted fatty acids metabolism, leading to hypomyelination and neurological impairments.
Biomedicine & pharmacotherapy = Biomedecine & pharmacotherapieBLOC1S1 variants cause lysosomal and autophagic defects resulting in a hypomyelinating leukodystrophy with epileptic encephalopathy.
medRxiv : the preprint server for health sciencesCochlear implantation in Childhood Ataxia with Central nervous system Hypomyelination Syndrome.
Indian journal of otolaryngology and head and neck surgery : official publication of the Association of Otolaryngologists of IndiaInactivation of Thyroid Hormone Transporters Mct8/Oatp1c1 in Mouse Brain Endothelial Cells Causes Region-Specific Alterations in Central Thyroid Hormone Signaling.
Thyroid : official journal of the American Thyroid AssociationHypomyelination Leukodystrophy Type 11 (HLD11) Presenting with Diabetes: A Case Report and Literature Review.
Sage open pediatricsThe Attenuated Phenotype of CNTNAP1-Related Neuropathy Mimics Spastic-Dystonic Cerebral Palsy.
American journal of medical genetics. Part APOLR3A rare variants in a patient with intellectual disability, ataxic gait and cortical malformations: a case-report.
Italian journal of pediatricsAn atypical initial revelation of CACH-vanishing white matter syndrome miming herpetic encephalitis in a 6-year-old child: Case report and brief review.
Radiology case reportsBi-allelic variants in BRF2 are associated with perinatal death and craniofacial anomalies.
Genome medicineSPOUT1 variants associated with autosomal-recessive developmental and epileptic encephalopathy.
Acta epileptologicaPOLR3-Related Leukodystrophy: A Qualitative Study on Parents' Experiences With the Health Care System.
Pediatric neurologyTrichothiodystrophy due to ERCC2 Variants: Uncommon Contributor to Progressive Hypomyelinating Leukodystrophy.
Molecular genetics & genomic medicineCase Report: The first Korean familial case of BCAP31-related deafness, dystonia, and cerebral hypomyelination.
Frontiers in pediatricsAn X-Linked Ataxia Syndrome in a Family with Hearing Loss Associated with a Novel Variant in the BCAP31 Gene.
Movement disorders : official journal of the Movement Disorder SocietyEndocrine Care of a 19-year-old Woman With Isolated Hypogonadotropic Hypogonadism due to 4H Syndrome.
AACE clinical case reportsFirst description of novel compound heterozygous mutations in HYCC1: clinical evaluations and molecular analysis in patient with hypomyelinating leukodystrophy-5 with retrospective view.
Journal of human geneticsNeurodevelopmental Disorder Caused by Deletion of CHASERR, a lncRNA Gene.
The New England journal of medicineStress and Quality of Life of Parents of Children With POLR3-Related Leukodystrophy: A Cross-Sectional Pilot Study.
Journal of child neurologyRapid identification of primary atopic disorders (PAD) by a clinical landmark-guided, upfront use of genomic sequencing.
Allergologie selectInherited white matter disorders: Hypomyelination (myelin disorders).
Handbook of clinical neurologyLEUDEN Syndrome: A Novel Hypomyelinating Leukoencephalopathy in a 1-Year-Old Girl.
Annals of Indian Academy of NeurologyXq22 deletion involving TCEAL1 in a female patient with early-onset neurological disease trait.
Human genome variationSpectrum of ERCC6-Related Cockayne Syndrome (Type B): From Mild to Severe Forms.
GenesFurther delineation of Wiedemann-Rautenstrauch syndrome linked with POLR3A.
Molecular genetics & genomic medicineDeep neurological phenotyping in oculo-dento-digital syndrome.
Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical NeurophysiologyProgress in leukodystrophies with zebrafish.
Development, growth & differentiationBiallelic pathogenic variants of PARS2 cause developmental and epileptic encephalopathy with spike-and-wave activation in sleep.
Molecular genetics & genomic medicineA New Case of Autosomal-Dominant POLR3B-Related Disorder: Widening Genotypic and Phenotypic Spectrum.
Brain sciencesA Chinese patient with POLR3A-related leukodystrophy: a case report and literature review.
Frontiers in neurologyThe atypical sphingolipid SPB 18:1(14Z);O2 is a biomarker for DEGS1 related hypomyelinating leukodystrophy.
Journal of lipid researchTwo novel cases of biallelic SMPD4 variants with brain structural abnormalities.
NeurogeneticsA New Phenotype of TUBB4A Mutation in a Family With Adult-Onset Progressive Spastic Paraplegia and Isolated Hypomyelination Leukodystrophy: A Case Report and Literature Review.
Journal of movement disordersInterstitial lung disease and pancreatic exocrine insufficiency in CADDS: Phenotypic expansion and literature review.
JIMD reportsMutation in the β-tubulin gene TUBB4A results in epileptic encephalopathy associated with hypomyelinated leucodystrophy: Unexpected findings reveal genetic mosaicism.
International journal of developmental neuroscience : the official journal of the International Society for Developmental NeuroscienceOccupational Therapy Intervention in the Child with Leukodystrophy: Case Report.
Children (Basel, Switzerland)Treacher Collins Syndrome Associated with Disproportionate Nervous System, Cardiovascular, Otologic Complications Among 1,114 Patients.
The Cleft palate-craniofacial journal : official publication of the American Cleft Palate-Craniofacial AssociationThyroid hormone transporter Mct8/Oatp1c1 deficiency compromises proper oligodendrocyte maturation in the mouse CNS.
Neurobiology of diseaseEGR2 gene-linked hereditary neuropathies present with a bimodal age distribution at symptoms onset.
Journal of the peripheral nervous system : JPNSCraniofacial features of POLR3-related leukodystrophy caused by biallelic variants in POLR3A, POLR3B and POLR1C.
Journal of medical geneticsA novel mutation in RNF216 gene in a Turkish case with Gordon Holmes syndrome.
BMC medical genomicsThe First Case of 4H Syndrome with Type 1 Diabetes Mellitus.
Journal of clinical research in pediatric endocrinologyIdentification of a de novo Mutation in TMEM106B in a Saudi Child Causes Hypomyelination Leukodystrophy.
Global medical geneticsSpectrum of Pediatric to Early Adulthood POLR3A-Associated Movement Disorders.
Movement disorders clinical practiceSARS-CoV-2 (COVID-19) as a possible risk factor for neurodevelopmental disorders.
Frontiers in neuroscienceConsolidating the association of biallelic MAPKAPK5 pathogenic variants with a distinct syndromic neurodevelopmental disorder.
Journal of medical geneticsBrain imaging findings in Liberfarb syndrome: hypomyelination and optic nerve and cerebellar atrophy.
Pediatric radiologyProlonged, Low-Level Exposure to the Marine Toxin, Domoic Acid, and Measures of Neurotoxicity in Nonhuman Primates.
Environmental health perspectivesVariants in the zinc transporter TMEM163 cause a hypomyelinating leukodystrophy.
Brain : a journal of neurologyEIF2B2 gene mutation causing early onset vanishing white matter disease: a case report.
Italian journal of pediatricsANKLE2-related microcephaly: A variable microcephaly syndrome resembling Zika infection.
Annals of clinical and translational neurologyA new entity of hypomyelination with atrophy of basal ganglia and cerebellum-like syndrome with bilateral developmental cataract.
Indian journal of ophthalmologyMutations in TAF8 cause a neurodegenerative disorder.
Brain : a journal of neurologyCase Report: Novel Biallelic Null Variants of SMPD4 Confirm Its Involvement in Neurodevelopmental Disorder With Microcephaly, Arthrogryposis, and Structural Brain Anomalies.
Frontiers in genetics[Analysis of a case with Xia-Gibbs syndrome due to variant of AHDC1 gene].
Zhonghua yi xue yi chuan xue za zhi = Zhonghua yixue yichuanxue zazhi = Chinese journal of medical geneticsBiallelic variants in SLC35B2 cause a novel chondrodysplasia with hypomyelinating leukodystrophy.
Brain : a journal of neurologyHypomyelination with Atrophy of Basal Ganglia and Cerebellum (HABC) Due to UFM1 Mutation in Roma Patients - Severe Early Encephalopathy with Stridor and Severe Hearing and Visual Impairment. A Single Center Experience.
CNS & neurological disorders drug targetsPossible EIF2AK2-Associated Stress-Related Neurological Decompensation with Combined Dystonia and Striatal Lesions.
Movement disorders clinical practiceClinical and imaging characteristics of 4H syndrome: A case report.
CNS neuroscience & therapeuticsNeonatal neuronal WWOX gene therapy rescues Wwox null phenotypes.
EMBO molecular medicineGenome sequencing identifies three molecular diagnoses including a mosaic variant in the COL2A1 gene in an individual with Pol III-related leukodystrophy and Feingold syndrome.
Cold Spring Harbor molecular case studiesA novel homozygous synonymous variant further expands the phenotypic spectrum of POLR3A-related pathologies.
American journal of medical genetics. Part AASD-like behaviors, a dysregulated inflammatory response and decreased expression of PLP1 characterize mice deficient for sialyltransferase ST3GAL5.
Brain, behavior, & immunity - healthCase Report: Diffuse Polymicrogyria Associated With a Novel ADGRG1 Variant.
Frontiers in pediatricsBiallelic PI4KA variants cause a novel neurodevelopmental syndrome with hypomyelinating leukodystrophy.
Brain : a journal of neurologyPOLR3A variants in hereditary spastic paraparesis and ataxia: clinical, genetic, and neuroradiological findings in a cohort of Italian patients.
Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical NeurophysiologyMyelTracer: A Semi-Automated Software for Myelin g-Ratio Quantification.
eNeuroBroadening the spectrum phenotype of TBCE-related neuron neurodegeneration.
Brain & developmentMPV17-related Hepatocerebral Mitochondrial DNA Depletion Syndrome.
The Korean journal of gastroenterology = Taehan Sohwagi Hakhoe chiMigrating Focal Seizures and Myoclonic Status in ARV1-Related Encephalopathy.
Neurology. GeneticsCerebral folate transporter deficiency syndrome in three siblings: Why genetic testing for developmental and epileptic encephalopathies should be performed early and include the FOLR1 gene.
American journal of medical genetics. Part ANew Cohort of Patients With CEDNIK Syndrome Expands the Phenotypic and Genotypic Spectra.
Neurology. GeneticsOligodendrocyte progenitor cell maturation is dependent on dual function of MCT8 in the transport of thyroid hormone across brain barriers and the plasma membrane.
GliaBAP31: Physiological functions and roles in disease.
BiochimieNeuronal deletion of Wwox, associated with WOREE syndrome, causes epilepsy and myelin defects.
Brain : a journal of neurologyA next generation sequencing-based analysis of a large cohort of ataxic patients refines the clinical spectrum associated with spinocerebellar ataxia 21.
European journal of neurologyC21orf91 Regulates Oligodendroglial Precursor Cell Fate-A Switch in the Glial Lineage?
Frontiers in cellular neuroscienceA hypomyelinating leukodystrophy in German Shepherd dogs.
Journal of veterinary internal medicinePreliminary report for Epilepsia Open A case of West syndrome with severe global developmental delay and confirmed KIF5A gene variant.
Epilepsia openNew Insights on the Genetic Basis Underlying SHILCA Syndrome: Characterization of the NMNAT1 Pathological Alterations Due to Compound Heterozygous Mutations and Identification of a Novel Alternative Isoform.
International journal of molecular sciencesFurther delineation of BCAP31-linked intellectual disability: description of 17 new families with LoF and missense variants.
European journal of human genetics : EJHGEIF2AK2-related Neurodevelopmental Disorder With Leukoencephalopathy, Developmental Delay, and Episodic Neurologic Regression Mimics Pelizaeus-Merzbacher Disease.
Neurology. GeneticsExpanding the Clinical and Mutational Spectrum of the PLP1-Related Hypomyelination of Early Myelinated Structures (HEMS).
Brain sciencesEffects of endocrine disrupting chemicals on myelin development and diseases.
NeurotoxicologyA CNTNAP1 Missense Variant Is Associated with Canine Laryngeal Paralysis and Polyneuropathy.
GenesNeurodevelopmental regression, severe generalized dystonia, and metabolic acidosis caused by POLR3A mutations.
Neurology. GeneticsFLVCR1-related disease as a rare cause of retinitis pigmentosa and hereditary sensory autonomic neuropathy.
European journal of medical geneticsThe deficiency of myelin in the mutant taiep rat induces a differential immune response related to protection from the human parasite Trichinella spiralis.
PloS oneLeukoencephalopathy in Al-Raqad syndrome: Expanding the clinical and neuroimaging features caused by a biallelic novel missense variant in DCPS.
American journal of medical genetics. Part ASchimke XLID syndrome results from a deletion in BCAP31.
American journal of medical genetics. Part ADe novo mutation and skewed X-inactivation in girl with BCAP31-related syndrome.
Human mutationN-Wasp Regulates Oligodendrocyte Myelination.
The Journal of neuroscience : the official journal of the Society for NeuroscienceA recurrent TMEM106B mutation in hypomyelinating leukodystrophy: A rapid diagnostic assay.
Brain & developmentMRI Features in a Rat Model of H-ABC Tubulinopathy.
Frontiers in neuroscienceMonocarboxylate Transporter 8 Deficiency: Delayed or Permanent Hypomyelination?
Frontiers in endocrinologyNeural stem cells restore myelin in a demyelinating model of Pelizaeus-Merzbacher disease.
Brain : a journal of neurologyPontocerebellar Hypoplasia: a Pattern Recognition Approach.
Cerebellum (London, England)CNTNAP1 Mutations and Their Clinical Presentations: New Case Report and Systematic Review.
Case reports in medicineFoetal onset of EIF2B related disorder in two siblings: cerebellar hypoplasia with absent Bergmann glia and severe hypomyelination.
Acta neuropathologica communicationsDe novo EIF2AK1 and EIF2AK2 Variants Are Associated with Developmental Delay, Leukoencephalopathy, and Neurologic Decompensation.
American journal of human geneticsReader response: Teaching NeuroImages: A rare case of Jacobsen syndrome with global diffuse hypomyelination of brain.
NeurologyClinical spectrum of POLR3-related leukodystrophy caused by biallelic POLR1C pathogenic variants.
Neurology. GeneticsWest Syndrome in an Infant With Vitamin B12 Deficiency Born to Autoantibodies Positive Mother.
Frontiers in pediatricsPossible mitochondrial dysfunction in a patient with deafness, dystonia, and cerebral hypomyelination (DDCH) due to BCAP31 Mutation.
Molecular genetics & genomic medicineCNS manifestations in patients with telomere biology disorders.
Neurology. GeneticsAn update on clinical, pathological, diagnostic, and therapeutic perspectives of childhood leukodystrophies.
Expert review of neurotherapeuticsAberrant Oligodendrogenesis in Down Syndrome: Shift in Gliogenesis?
CellsDevelopmental hypomyelination in Wolfram syndrome: new insights from neuroimaging and gene expression analyses.
Orphanet journal of rare diseasesCompound heterozygous mutations in SNAP29 is associated with Pelizaeus-Merzbacher-like disorder (PMLD).
Human geneticsBiallelic DMXL2 mutations impair autophagy and cause Ohtahara syndrome with progressive course.
Brain : a journal of neurologyGenetic and phenotypic features of patients with childhood ataxias diagnosed by next-generation sequencing gene panel.
Brain & developmentExpanding the phenotypic spectrum of Allan-Herndon-Dudley syndrome in patients with SLC16A2 mutations.
Developmental medicine and child neurologyNovel POLR1C mutation in RNA polymerase III-related leukodystrophy with severe myoclonus and dystonia.
Molecular genetics & genomic medicineBCAP31-related syndrome: The first de novo report.
European journal of medical geneticsMouse Nr2f1 haploinsufficiency unveils new pathological mechanisms of a human optic atrophy syndrome.
EMBO molecular medicineAnimal models in the neurotoxicology of 2,4-D.
Human & experimental toxicologyOligodendroglial Lineage Cells in Thyroid Hormone-Deprived Conditions.
Stem cells internationalLeukodystrophies and genetic leukoencephalopathies in children.
Revue neurologiqueAgenesis and Hypomyelination of Corpus Callosum in Mice Lacking Nsun5, an RNA Methyltransferase.
CellsSevere presentation and complex brain malformations in an individual carrying a CCND2 variant.
Molecular genetics & genomic medicineTeaching NeuroImages: A rare case of Jacobsen syndrome with global diffuse hypomyelination of brain.
NeurologyA novel family with axonal Charcot-Marie-Tooth disease caused by a mutation in the EGR2 gene.
Journal of the peripheral nervous system : JPNSCerebral hypomyelination associated with biallelic variants of FIG4.
Human mutationMutations in ACTL6B, coding for a subunit of the neuron-specific chromatin remodeling complex nBAF, cause early onset severe developmental and epileptic encephalopathy with brain hypomyelination and cerebellar atrophy.
Human geneticsA novel image segmentation method for the evaluation of inflammation-induced cortical and hippocampal white matter injury in neonatal mice.
Journal of chemical neuroanatomyGalloway-Mowat syndrome in Taiwan: OSGEP mutation and unique clinical phenotype.
Orphanet journal of rare diseasesBi-allelic POLR3A Loss-of-Function Variants Cause Autosomal-Recessive Wiedemann-Rautenstrauch Syndrome.
American journal of human geneticsClinical Reasoning: West syndrome, pontocerebellar hypoplasia, and hypomyelination in a 6-month-old boy.
Neurology[The importance of semiology and biochemistry in the diagnostic management of a peroxisomal biogenesis disorder].
Revista de neurologiaHomozygous mutation in MFSD2A, encoding a lysolipid transporter for docosahexanoic acid, is associated with microcephaly and hypomyelination.
NeurogeneticsAbsence of Axoglial Paranodal Junctions in a Child With CNTNAP1 Mutations, Hypomyelination, and Arthrogryposis.
Journal of child neurologyLeukodystrophy with disorders of sex development due to WT1 mutations.
Journal of the neurological sciencesProtective role of the lipid phosphatase Fig4 in the adult nervous system.
Human molecular geneticsA patient with peripheral demyelinating neuropathy, central dysmyelinating leukodystrophy, Waardenburg syndrome, and severe hypoganglionosis associated with a novel SOX10 mutation.
American journal of medical genetics. Part AA novel homozygous mutation in POLR3A gene causing 4H syndrome: a case report.
BMC pediatricsPhenotype of CNTNAP1: a study of patients demonstrating a specific severe congenital hypomyelinating neuropathy with survival beyond infancy.
European journal of human genetics : EJHGNeurogenetics of Pelizaeus-Merzbacher disease.
Handbook of clinical neurologyMyelin oligodendrocyte glycoprotein and aquaporin-4 antibodies are highly specific in children with acquired demyelinating syndromes.
Developmental medicine and child neurologyHypomyelinating disorders in China: The clinical and genetic heterogeneity in 119 patients.
PloS oneAtaxia With Hypodontia: A Unique Leukodystrophy.
Pediatric neurologyBrain Atrophy and Hypomyelination Associated with Iatrogenic Cushing Syndrome in an Infant.
Iranian journal of child neurologyPersistence of Zika Virus After Birth: Clinical, Virological, Neuroimaging, and Neuropathological Documentation in a 5-Month Infant With Congenital Zika Syndrome.
Journal of neuropathology and experimental neurology[Clinical manifestation and gene analyses of 15 patients with intellectual disability or developmental delay complicated with congenital nystagmus].
Zhonghua er ke za zhi = Chinese journal of pediatricsOvercoming Monocarboxylate Transporter 8 (MCT8)-Deficiency to Promote Human Oligodendrocyte Differentiation and Myelination.
EBioMedicineH-ABC Presenting as Asymmetric Dystonia in a Patient with Sturge-Weber Syndrome.
NeuropediatricsDelineating SPTAN1 associated phenotypes: from isolated epilepsy to encephalopathy with progressive brain atrophy.
Brain : a journal of neurologyX-linked hypomyelination with spondylometaphyseal dysplasia (H-SMD) associated with mutations in AIFM1.
NeurogeneticsScreening study of TUBB4A in isolated dystonia.
Parkinsonism & related disordersAmino acid synthesis deficiencies.
Journal of inherited metabolic diseaseCerebellar hypoplasia with endosteal sclerosis is a POLR3-related disorder.
European journal of human genetics : EJHGDeficient activity of alanyl-tRNA synthetase underlies an autosomal recessive syndrome of progressive microcephaly, hypomyelination, and epileptic encephalopathy.
Human mutationHypomorphic mutations in POLR3A are a frequent cause of sporadic and recessive spastic ataxia.
Brain : a journal of neurologyZellweger syndrome: Depiction of MRI findings in early infancy at 3.0 Tesla.
The neuroradiology journalSevere neurodegeneration, progressive cerebral volume loss and diffuse hypomyelination associated with a homozygous frameshift mutation in CSTB.
European journal of human genetics : EJHGBCAP31-associated encephalopathy and complex movement disorder mimicking mitochondrial encephalopathy.
American journal of medical genetics. Part APrenatal and postnatal presentations of corpus callosum agenesis with polymicrogyria caused by EGP5 mutation.
American journal of medical genetics. Part ACockayne syndrome with intracranial calcification, hypomyelination, and cerebral atrophy.
Journal of neurosciences in rural practiceCongenital infection with atypical porcine pestivirus (APPV) is associated with disease and viral persistence.
Veterinary researchContactin-Associated Protein 1 (CNTNAP1) Mutations Induce Characteristic Lesions of the Paranodal Region.
Journal of neuropathology and experimental neurologyCharacterization of SPATA5-related encephalopathy in early childhood.
Clinical geneticsA Novel Asp121Asn Mutation of Myelin Protein Zero Is Associated with Late-Onset Axonal Charcot-Marie-Tooth Disease, Hearing Loss and Pupil Abnormalities.
Frontiers in aging neuroscienceControl of seizures by ketogenic diet-induced modulation of metabolic pathways.
Amino acidsPharmacological treatment and BBB-targeted genetic therapy for MCT8-dependent hypomyelination in zebrafish.
Disease models & mechanismsCockayne syndrome: a diffusion tensor imaging and volumetric study.
The British journal of radiologyNeonatal progeriod syndrome associated with biallelic truncating variants in POLR3A.
American journal of medical genetics. Part APatchy white matter hyperintensity in ring chromosome 18 syndrome.
Pediatrics international : official journal of the Japan Pediatric SocietyBrittle Hair, Photosensitivity, Brain Hypomyelination and Immunodeficiency: Clues to Trichothiodystrophy.
Indian journal of pediatricsMetabolic, endocrine, and other genetic disorders.
Handbook of clinical neurologyCollapsing Glomerulopathy in a Child with Galloway-Mowat Syndrome.
Case reports in nephrologyClassification of involuntary movements in dogs: Tremors and twitches.
Veterinary journal (London, England : 1997)SNX27, a protein involved in down syndrome, regulates GPR17 trafficking and oligodendrocyte differentiation.
GliaHypomyelinating leukodystrophies - a molecular insight into the white matter pathology.
Clinical geneticsHypomyelination with Atrophy of the Basal Ganglia and Cerebellum (H-ABC) is a Differential Diagnosis for Pallidopyramidal Syndromes with Thin Corpus Callosum.
Movement disorders clinical practicePYCR2 Mutations cause a lethal syndrome of microcephaly and failure to thrive.
Annals of neurologySpondyloepimetaphyseal dysplasia with neurodegeneration associated with AIFM1 mutation - a novel phenotype of the mitochondrial disease.
Clinical geneticsCellular and network-level adaptations to in utero methadone exposure along the ventral respiratory column in the neonate rat.
Experimental neurologyThe clinical syndrome of dystonia with anarthria/aphonia.
Parkinsonism & related disordersDown Syndrome Developmental Brain Transcriptome Reveals Defective Oligodendrocyte Differentiation and Myelination.
Neuron[Clinical and molecular analysis of two Chinese siblings with Cockayne syndrome].
Zhonghua er ke za zhi = Chinese journal of pediatricsCockayne syndrome-derived neurons display reduced synapse density and altered neural network synchrony.
Human molecular geneticsDevelopmental neurotoxicity of inhaled ambient ultrafine particle air pollution: Parallels with neuropathological and behavioral features of autism and other neurodevelopmental disorders.
NeurotoxicologyGenetic heterogeneity in 26 infants with a hypomyelinating leukodystrophy.
Human geneticsBCAP31 Mutation Causing a Syndrome of Congenital Dystonia, Facial Dysorphism and Central Hypomyelination Discovered Using Exome Sequencing.
Movement disorders clinical practiceMutations in RNF216 do not cause 4H syndrome.
Parkinsonism & related disordersHypomyelination and developmental delay associated with VPS11 mutation in Ashkenazi-Jewish patients.
Journal of medical geneticsLongitudinal follow up of a boy affected by Pol III-related leukodystrophy: a detailed phenotype description.
BMC medical geneticsRecessive mutations in POLR1C cause a leukodystrophy by impairing biogenesis of RNA polymerase III.
Nature communicationsAssociações
Organizações que acompanham esta doença — pra ter apoio e orientação
Ainda não temos associações cadastradas para Síndrome de tremor – ataxia – hipomielinização central.
É de uma associação que acompanha esta doença? Fale com a gente →
Comunidades
Grupos ativos de quem convive com esta doença aqui no Raras
Ainda não existe comunidade no Raras para Síndrome de tremor – ataxia – hipomielinização central
Pacientes, familiares e cuidadores se organizam em comunidades pra compartilhar experiências, fazer perguntas e se apoiar. Você pode ser o primeiro.
Tire suas dúvidas
Perguntas, dicas e experiências compartilhadas aqui na página
Participe da discussão
Faça login para postar dúvidas, compartilhar experiências e interagir com especialistas.
Fazer loginDoenças relacionadas
Doenças com sintomas parecidos — ajudam quem ainda está buscando diagnóstico
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.
- Dysregulated lipid metabolism and hypomyelination in postnatal peroxisome-deficient Pex2 knockout Zellweger mice.
- The Impact of RNA Polymerase III-Related Leukodystrophy on Nonaffected Family Members: A Qualitative Study.
- Aicardi-Goutières Syndrome: Insights from a Middle Eastern Case Series.
- POLR3A-related syndrome complicated with cerebral abscesses: a case report and literature review.
- Human CNTNAP1 Variants Associated With Severe Neurological Deficits: Additional Cases and Literature Review.
- Further delineation of Wiedemann-Rautenstrauch syndrome linked with POLR3A.
- ANKLE2-related microcephaly: A variable microcephaly syndrome resembling Zika infection.
- A new entity of hypomyelination with atrophy of basal ganglia and cerebellum-like syndrome with bilateral developmental cataract.
- Cerebral folate transporter deficiency syndrome in three siblings: Why genetic testing for developmental and epileptic encephalopathies should be performed early and include the FOLR1 gene.
- A hypomyelinating leukodystrophy in German Shepherd dogs.
Bases de dados e fontes oficiais
Identificadores e referências canônicas usadas para montar este verbete.
- ORPHA:447896(Orphanet)
- MONDO:0018656(MONDO)
- GARD:17774(GARD (NIH))
- Variantes catalogadas(ClinVar)
- Busca completa no PubMed(PubMed)
- Q28065599(Wikidata)
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
