A síndrome de tremor/ataxia associada ao X frágil (FXTAS) é uma doença neurodegenerativa rara caracterizada por tremor intencional progressivo de início na idade adulta e ataxia da marcha.
Introdução
O que você precisa saber de cara
A síndrome de tremor/ataxia associada ao X frágil (FXTAS) é uma doença neurodegenerativa rara caracterizada por tremor intencional progressivo de início na idade adulta e ataxia da marcha.
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Sinais e sintomas
O que aparece no corpo e com que frequência cada sintoma acontece
Partes do corpo afetadas
+ 27 sintomas em outras categorias
Características mais comuns
Os sintomas variam de pessoa para pessoa. Abaixo estão as 57 características clínicas mais associadas, ordenadas por frequência.
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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: X-linked dominant.
Multifunctional polyribosome-associated RNA-binding protein that plays a central role in neuronal development and synaptic plasticity through the regulation of alternative mRNA splicing, mRNA stability, mRNA dendritic transport and postsynaptic local protein synthesis of target mRNAs (PubMed:12417522, PubMed:16631377, PubMed:18653529, PubMed:19166269, PubMed:23235829, PubMed:25464849). Acts as an mRNA regulator by mediating formation of some phase-separated membraneless compartment: undergoes li
Cytoplasm, Cytoplasmic ribonucleoprotein granuleCytoplasm, Stress granuleCytoplasmPerikaryonCytoplasm, perinuclear regionCell projection, neuron projectionCell projection, axonCell projection, dendriteCell projection, dendritic spineSynapse, synaptosomeCell projection, growth coneCell projection, filopodium tipSynapsePostsynaptic cell membranePresynaptic cell membraneNucleusNucleus, nucleolusChromosome, centromereChromosomeCell membraneNucleus, Cajal body
Fragile X syndrome
An X-linked dominant disease characterized by moderate to severe intellectual disability, macroorchidism (enlargement of the testicles), large ears, prominent jaw, and high-pitched, jocular speech. The defect in most patients results from an amplification of a CGG repeat region in the FMR1 gene and abnormal methylation.
Medicamentos e terapias
Mecanismo: GABA-A receptor; anion channel positive allosteric modulator
Variantes genéticas (ClinVar)
272 variantes patogênicas registradas no ClinVar.
Classificação de variantes (ClinVar)
Distribuição de 9 variantes classificadas pelo ClinVar.
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 associada ao X frágil
Centros de Referência SUS
13 centros habilitados pelo SUS para Síndrome de tremor/ataxia associada ao X frágil
Centros para Síndrome de tremor/ataxia associada ao X frágil
Detalhes dos centros
Hospital Infantil Albert Sabin
R. Tertuliano Sales, 544 - Vila União, Fortaleza - CE, 60410-794 · CNES 2407876
Serviço de Referência
Hospital de Apoio de Brasília (HAB)
AENW 3 Lote A Setor Noroeste - Plano Piloto, Brasília - DF, 70684-831 · CNES 0010456
Serviço de Referência
Hospital Estadual Infantil e Maternidade Alzir Bernardino Alves (HIABA)
Av. Min. Salgado Filho, 918 - Soteco, Vila Velha - ES, 29106-010 · CNES 6631207
Serviço de Referência
Hospital das Clínicas da UFMG
Av. Prof. Alfredo Balena, 110 - Santa Efigênia, Belo Horizonte - MG, 30130-100 · CNES 2280167
Serviço de Referência
Hospital Universitário João de Barros Barreto
R. dos Mundurucus, 4487 - Guamá, Belém - PA, 66073-000 · CNES 2337878
Serviço de Referência
Instituto de Medicina Integral Prof. Fernando Figueira (IMIP)
R. dos Coelhos, 300 - Boa Vista, Recife - PE, 50070-902 · CNES 0000647
Serviço de Referência
Hospital Pequeno Príncipe
R. Des. Motta, 1070 - Água Verde, Curitiba - PR, 80250-060 · CNES 3143805
Serviço de Referência
Hospital de Clínicas da UFPR
R. Gen. Carneiro, 181 - Alto da Glória, Curitiba - PR, 80060-900 · CNES 2364980
Serviço de Referência
Instituto Nacional de Saúde da Mulher, da Criança e do Adolescente Fernandes Figueira (IFF/Fiocruz)
Av. Rui Barbosa, 716 - Flamengo, Rio de Janeiro - RJ, 22250-020 · CNES 2269988
Serviço de Referência
Hospital de Clínicas de Porto Alegre (HCPA)
Rua Ramiro Barcelos, 2350 Bloco A - Av. Protásio Alves, 211 - Bloco B e C - Santa Cecília, Porto Alegre - RS, 90035-903 · CNES 2237601
Serviço de Referência
Hospital das Clínicas da FMUSP
R. Dr. Ovídio Pires de Campos, 225 - Cerqueira César, São Paulo - SP, 05403-010 · CNES 2077485
Serviço de Referência
Hospital de Clínicas da UNICAMP
R. Vital Brasil, 251 - Cidade Universitária, Campinas - SP, 13083-888 · CNES 2748223
Serviço de Referência
Hospital de Clínicas de Ribeirão Preto (HCRP-USP)
R. Ten. Catão Roxo, 3900 - Vila Monte Alegre, Ribeirão Preto - SP, 14015-010 · CNES 2082187
Serviço de Referência
Dados de DATASUS/CNES, SBGM, ABNeuro e Ministério da Saúde. Sempre confirme a disponibilidade diretamente com o estabelecimento.
Pesquisa ativa
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8 ensaios clínicos encontrados, 1 ativos.
Publicações mais relevantes
T2-FLAIR hyperintensities in the inferior cerebellar peduncles and their association with clinical symptoms, molecular and MRI markers in male FMR1 premutation carriers.
FMR1 premutation carriers (55-200 CGG repeats) are at risk of developing fragile X-associated tremor/ataxia syndrome (FXTAS), a neurodegenerative disorder associated with motor and cognitive impairment. Bilateral hyperintensities of the middle cerebellar peduncles (MCP sign) are the major radiological hallmarks of FXTAS. The inferior cerebellar peduncles (ICP) contain fibers related to proprioception and vestibular functions (such as the rostral and posterior spinocerebellar tracts and the juxta restiform body), which are clinically associated with cerebellar gait ataxia, a major clinical criterion for FXTAS diagnosis. However, the ICP hyperintensity has yet to be studied in FXTAS. We evaluated 588 MRI scans (mean 2.05 visits/participant) from 202 male premutation carriers (164 with FXTAS and 38 without FXTAS at last visits) and 85 controls. Two radiologists, independently, rated as absent or present the signal of the right and left ICP in T2-Fluid-attenuated inversion recovery (FLAIR) scans. Mixed-effects models were used for statistical analysis adjusting for age. Only carriers with FXTAS revealed ICP hyperintensities at last visits. Furthermore, ICP hyperintensity was associated with brain atrophy, increased white matter disease, the MCP sign, FXTAS stage, abnormal gait, lower cognitive functioning and faster age-related increase in anxiety and depression scores. Finally, carriers with ICP hyperintensities had significantly higher CGG repeat length than carriers without ICP hyperintensities. This study describes ICP hyperintensity as a new potential radiological finding in FXTAS, suggests involvement of the vestibulo-cerebellar, rostral, and posterior spinocerebellar tracts, and the vestibular system in FXTAS physiopathology, and reinforces the association of CGG expansion in the range of brain changes seen in FXTAS.
Protective role of PASH-1 in CGG repeat-driven RNA and protein toxicity in FXTAS.
Fragile X-associated tremor/ataxia syndrome (FXTAS) is caused by CGG repeat expansions in FMR1, leading to RNA toxicity and toxic FMRpolyG peptide from abnormal translation. Using a Caenorhabditis elegans model, we generated single-copy insertions of the human FMR1 5' UTR containing 0, 16, or 99 CGG repeats under a pan-neuronal promoter. Worms expressing 99 CGG repeats showed impaired motility, altered neuronal morphology, and disrupted miRNA homeostasis. Co-expression of PASH-1, the C. elegans ortholog of a miRNA-processing DGCR8 sequestered in FXTAS, mitigated both RNA- and peptide-mediated toxicity, restoring locomotion, neuronal structure, and miRNA regulation balance. Removing FMRpolyG improved movement by ∼50%, suggesting RNA toxicity is the primary pathogenesis. Glial 99 CGG expression altered nearby neuronal cilia, disrupting olfaction without affecting movement, revealing non-cell-autonomous toxicity. These findings establish the protective role of PASH-1 against CGG-induced neurotoxicity and underscore C. elegans as a model for dissecting FXTAS mechanisms and exploring therapeutic strategies.
Hereditary Ataxias: From Pathogenesis and Clinical Features to Neuroimaging, Fluid, and Digital Biomarkers-A Scoping Review.
Hereditary ataxias are a heterogeneous group of disorders with overlapping clinical presentations but diverse genetic and molecular etiologies. Biomarkers are increasingly essential to improve diagnosis, refine prognosis, and accelerate the development of targeted therapies. Following PRISMA-ScR guidelines, we conducted a scoping review of PubMed and complementary sources (2010-2025) to map and describe the current landscape of genetic, imaging, fluid, electrophysiological, and digital biomarkers across the most prevalent hereditary ataxias, including SCA1, SCA2, SCA3, SCA6, SCA7, SCA17, SCA27B, dentatorubral-pallidoluysian atrophy (DRPLA), Friedreich's ataxia (FRDA), RFC1-related ataxia (CANVAS), SPG7, and fragile X-associated tremor/ataxia syndrome (FXTAS). Eligible evidence encompassed observational cohorts, clinical trials, case series, and case reports providing primary biomarker data, with the objective of characterizing evidence breadth and identifying knowledge gaps rather than assessing comparative effectiveness. Across modalities, converging evidence highlights subtype-specific biomarker signatures. MRI volumetry, DTI, and FDG-PET map characteristic neurodegeneration patterns. Fluid biomarkers such as neurofilament light chain are informative across several SCAs and FRDA, while frataxin levels constitute robust endpoints in FRDA trials. Pathology-specific biomarkers such as ataxin-3 are advancing as tools for target engagement and may generalize to future gene-lowering strategies. Electrophysiological and oculographic measures show sensitivity for early disease detection, and wearable technologies are emerging as scalable tools for longitudinal monitoring. This scoping review synthesizes the heterogeneous evidence on hereditary ataxia biomarkers, highlighting multimodal frameworks that link molecular mechanisms with clinical endpoints. Mapping current approaches also reveals substantial variability and gaps across diseases and modalities, underscoring the need for harmonized validation in international multicenter cohorts and systematic integration into future clinical trials to advance precision medicine in hereditary ataxias.
Progression of fragile X-associated tremor/ataxia syndrome revealed by subtype and stage inference.
The fragile X-associated tremor/ataxia syndrome (FXTAS) is a neurodegenerative disorder caused by the premutation (55-200 CGG repeats) in the fragile X messenger ribonucleoprotein-1 (FMR1) gene. An open question is: In what sequential order do FXTAS symptoms typically appear, and how does that sequence vary among patients and between males and females? We applied the ordinal-outcomes version of the Subtype and Stage Inference algorithm ('Ordinal SuStaIn') to identify the sequential events of clinical and brain MRI changes in cross-sectional data collected during baseline visits from a longitudinal cohort of FXTAS patients at Stages 0-5. We included 28 neurodegenerative symptoms collected from 253 premutation carriers (101 females and 152 males) and 44 controls (7 females and 37 males), aged 40-86 years old at entry, who participated in two longitudinal studies, with entry dates between 2008 and 2023. We found substantial differences in order of events depending on sex, and possibly in combination of sex and CGG repeats. The main finding is the predominance of the psychiatric co-morbidities that occur early in females (often before the onset of tremor and ataxia) compared to males. These findings suggest that the sequence of neuropsychiatric symptoms for FXTAS is different in females compared to males, particularly for early symptoms in disease development and progression. This could lead to sex-specific modifications of the FXTAS diagnostic stages.
Integrative transcriptome-wide association analyses reveal PRKCG-linked GABAergic dysfunction in Fragile X-associated tremor/ataxia syndrome.
Fragile X-associated tremor/ataxia syndrome (FXTAS) is a neurodegenerative disorder caused by CGG repeat expansions in the FMR1 gene. While CGG repeat toxicity is established, the precise molecular mechanisms driving neurodegeneration remain unclear. Here, we show that a multi-omics strategy combined with TWAS reveals brain-region-specific molecular signatures and striking gene dysregulation in inhibitory neurons. Using conditional mouse models, we demonstrate that selective expression of expanded CGG repeats in GABAergic neurons is sufficient to recapitulate key pathologic hallmarks of FXTAS. We identify PRKCG as a genetic modifier of FXTAS, with cross-species evidence linking its overexpression to disease onset. Many dysregulated mRNAs in GABAergic neurons are targets of hnRNPA2/B1, an RNA-binding protein sequestered by CGG repeat RNA. Functional screening in Drosophila further establishes PRKCG as a potent modulator of CGG-associated neurotoxicity. These findings uncover a critical role of GABAergic neurons in FXTAS pathogenesis and position PRKCG as a promising therapeutic target.
Publicações recentes
Comprehensive, multidisciplinary care for fragile X-associated tremor/ataxia syndrome.
FXTAS and the Spectrum of FMR1 Premutation-Associated Phenotypes in Latin America: A Scoping Review.
Studies on copper (II) interaction with the (CCG)(12) repeats sequence: An insight into genomic instability in neurodegeneration.
Relationship Between Neurologic Symptoms and Signs and FMR1 Genotype in Premutation Carriers.
An Autopsy Case With Fragile X-Associated Tremor/Ataxia Syndrome Presenting Intranuclear Inclusion Bodies Mainly in the Limbic System.
📚 EuropePMC278 artigos no totalmostrando 196
An Autopsy Case With Fragile X-Associated Tremor/Ataxia Syndrome Presenting Intranuclear Inclusion Bodies Mainly in the Limbic System.
Neuropathology : official journal of the Japanese Society of NeuropathologyT2-FLAIR hyperintensities in the inferior cerebellar peduncles and their association with clinical symptoms, molecular and MRI markers in male FMR1 premutation carriers.
Frontiers in molecular neuroscienceProtective role of PASH-1 in CGG repeat-driven RNA and protein toxicity in FXTAS.
iScienceClinical Heterogeneity in a Scandinavian FMR1 Premutation Carrier Cohort and Basal Ganglia Atrophy in FXTAS.
Cerebellum (London, England)The apolipoprotein gene: a modulating role on brain volume and cognitive function in carriers of the fragile X premutation.
Neurobiology of diseaseHereditary Ataxias: From Pathogenesis and Clinical Features to Neuroimaging, Fluid, and Digital Biomarkers-A Scoping Review.
International journal of molecular scienceseVGeMdb: a manually curated database for experimentally validated genetic modifiers of neurodegenerative disorders.
NAR molecular medicineNeurodegeneration Within the Spectrum of Pervasive Developmental Disorders.
CureusA Case of Fragile-X Associated Tremor/Ataxia Syndrome Presenting with Hemichorea and Strabismus.
Movement disorders clinical practiceProgression of fragile X-associated tremor/ataxia syndrome revealed by subtype and stage inference.
Brain communicationsIntegrative transcriptome-wide association analyses reveal PRKCG-linked GABAergic dysfunction in Fragile X-associated tremor/ataxia syndrome.
Nature communicationsMolecular Repositioning of Celecoxib as a Neurotherapeutic Agent in Fragile X‑Associated Tremor/Ataxia Syndrome (FXTAS).
ACS pharmacology & translational scienceAn Out-of-Place Etiology: Recognizing FMR1 Premutation in the Memory Clinic.
Annals of clinical and translational neurologyOligodendrocyte Inclusion Pathology in Fragile X-Associated Tremor/Ataxia Syndrome.
Movement disorders : official journal of the Movement Disorder SocietyReduced Sensorimotor, Working Memory, and Episodic Memory Abilities in Aging Female FMR1 Premutation Carriers with and Without Fragile X-Associated Tremor/Ataxia Syndrome (FXTAS).
GenesSwallowing and choking difficulties as potential markers of FXTAS progression in FMR1 premutation carriers.
Scientific reportsLong-read sequencing reveals extensive FMR1 somatic mosaicism in Fragile-X associated tremor/ataxia syndrome in human brain.
bioRxiv : the preprint server for biologyCase Report: A 1-year progression of mediolateral gait instability during tandem walking in FXTAS.
Frontiers in sports and active livingThe imperative for multigenerational genetic screening: A case report of fragile X-associated tremor/ataxia syndrome (FXTAS).
MedicineBiomarkers of balance and gait deficits in FMR1 premutation carriers: a mini-review.
Frontiers in aging neuroscienceLacosamide Interaction with Expanded CGG Repeats RNA and Its Role in Modulating Poly-Glycine Protein-Mediated Toxicity in Fragile‑X Tremor/Ataxia Syndrome.
ACS pharmacology & translational scienceRepurposing Nitazoxanide to target the expanded r(CGG)n repeat RNA for therapeutic intervention in fragile-X tremor/ataxia syndrome.
International journal of biological macromoleculesAge-dependent impairment of dopamine D1 receptor signalling in mouse striatum by FMR1 variant P626L.
Brain communicationsPrevalence of NOTCH2NLC and FMR1 Repeat Expansions in Atypical Parkinsonism Compared to Asymptomatic Elderly Individuals.
Movement disorders : official journal of the Movement Disorder SocietyFragile X-associated tremor/ataxia syndrome: a case report with atypical spinal cord atrophy and altered somatosensory evoked potentials.
Journal of neurologyBest Oculomotor Endpoints for Clinical Trials in Hereditary Ataxias: A Systematic Review and Consensus by the Ataxia Global Initiative Working Group on Digital‑Motor Biomarkers.
Cerebellum (London, England)FXTAS presenting with cervical dystonia as the initial symptom: Considering FXTAS in the clinical evaluation of cervical dystonia.
eNeurologicalSci[Development of Therapeutic Agents Targeting Higher-order Structures of Nucleic Acids in Neurodegenerative Diseases].
Yakugaku zasshi : Journal of the Pharmaceutical Society of JapanTyrosine Peptides Alleviates Multifaceted Toxicity Linked to Expanded CGG Repeats in Fragile X‑Associated Tremor/Ataxia Syndrome.
ACS pharmacology & translational scienceA case of fragile X-associated tremor/ataxia syndrome with superior cerebellar peduncle lesions.
eNeurologicalSciLongitudinal Analysis of Neuroradiological Biomarkers for Fragile X-Associated Tremor/Ataxia Syndrome and Implications for Clinical Trials.
Annals of neurologyModelling fragile X-associated neuropsychiatric disorders in young inducible 90CGG premutation mice.
Brain : a journal of neurologyInvolvement of the Cerebellar Peduncles in FMR1 Premutation Carriers: A Pictorial Review of Their Anatomy, Imaging, and Pathology.
International journal of molecular sciencesSignificantly Increased Aqueous Solubility of Piperine via Nanoparticle Formulation Serves as the Most Critical Factor for Its Brain Uptake Enhancement.
International journal of nanomedicinePremutation Females with preFXTAS.
International journal of molecular sciencesRecent progress in oculopharyngodistal myopathy research from clinical and genetic viewpoints.
Journal of neuromuscular diseasesNigrostriatal Degeneration Underpins Sensorimotor Dysfunction in an Inducible Mouse Model of Fragile X-Associated Tremor/Ataxia Syndrome (FXTAS).
International journal of molecular sciencesAI-Powered Neurogenetics: Supporting Patient's Evaluation with Chatbot.
GenesHyperintense lesions of the middle cerebellar peduncle and beyond: a pictorial essay.
Radiologia brasileiraNeurovisual Training With Acoustic Feedback: An Innovative Approach for Nystagmus Rehabilitation.
Archives of rehabilitation research and clinical translationDiagnosis of hereditary ataxias: a real-world single center experience.
Journal of neurologyParkinson's Disease Polygenic Risk Score and Neurological Involvement in Carriers of the FMR1 Premutation Allele: A Case for Genetic Modifier.
Molecular genetics & genomic medicineMR-Guided Focused Ultrasound for the Treatment of Tremor in Fragile X-Associated Tremor/Ataxia Syndrome.
Movement disorders clinical practiceExacerbation of Fragile X-associated Tremor/Ataxia Syndrome in the Context of COVID-19 Infection: A Case Report.
CureusUnilateral MRIgFUS thalamotomy: Long-term follow-up in fragile X-associated tremor/ataxia syndrome.
NeurologiaFragile X-associated tremor/ataxia syndrome: A case report.
Asian journal of surgeryDystonic Tremor as the Clinical Manifestation of Fragile X-Associated Tremor/Ataxia Syndrome.
Movement disorders clinical practiceLanguage use predicts symptoms of fragile X-associated tremor/ataxia syndrome in men and women with the FMR1 premutation.
Scientific reportsApolipoproteine and KLOTHO Gene Variants Do Not Affect the Penetrance of Fragile X-Associated Tremor/Ataxia Syndrome.
International journal of molecular sciencesPsychiatric Manifestations in Early to Middle Stages of Fragile X-Associated Tremor-Ataxia Syndrome (FXTAS).
The Journal of neuropsychiatry and clinical neurosciencesFragile X Syndrome and FMR1 premutation: results from a survey on associated conditions and treatment priorities in Italy.
Orphanet journal of rare diseasesFragile X-associated tremor/ataxia syndrome treated with multitarget deep brain stimulation.
BMJ case reportsAdvances on the Mechanisms and Therapeutic Strategies in Non-coding CGG Repeat Expansion Diseases.
Molecular neurobiologyPrevalence and Characterization of NOTCH2NLC GGC Repeat Expansions in Koreans: From a Hospital Cohort Analysis to a Population-Wide Study.
Neurology. GeneticsEnlarged perivascular spaces and their association with motor, cognition, MRI markers and cerebrovascular risk factors in male fragile X premutation carriers.
Journal of the neurological sciencesRole of fragile X messenger ribonucleoprotein 1 in the pathophysiology of brain disorders: a glia perspective.
Neuroscience and biobehavioral reviewsAn Update on the Adult-Onset Hereditary Cerebellar Ataxias: Novel Genetic Causes and New Diagnostic Approaches.
Cerebellum (London, England)Managing tremor in fragile X-associated tremor/ataxia syndrome with botulinum neurotoxin: report of a success.
Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical NeurophysiologyMitochondrial dysfunction in brain tissues and Extracellular Vesicles Fragile X-associated tremor/ataxia syndrome.
Annals of clinical and translational neurologyReversible encephalitis-like episodes in fragile X-associated tremor/ataxia syndrome: a case report.
BMC neurologyI123-FP-CIT (DaTSCAN) SPECT beyond the Most Common Causes of Parkinsonism: A Systematic Review.
Movement disorders clinical practicePotential Prodromal Digital Postural Sway Markers for Fragile X-Associated Tremor/Ataxia Syndrome (FXTAS) Detected via Dual-Tasking and Sensory Manipulation.
Sensors (Basel, Switzerland)Mitochondrial dysfunction in Fragile X syndrome and Fragile X-associated tremor/ataxia syndrome: prospect use of antioxidants and mitochondrial nutrients.
Molecular biology reportsUnmethylated Mosaic Full Mutation Males without Fragile X Syndrome.
GenesRibosomal quality control factors inhibit repeat-associated non-AUG translation from GC-rich repeats.
Nucleic acids researchRNA structure promotes liquid-to-solid phase transition of short RNAs in neuronal dysfunction.
Communications biologyCase Series: Vestibular Migraines in Fragile X Premutation Carriers.
Journal of clinical medicineAAGGG repeat expansions trigger RFC1-independent synaptic dysregulation in human CANVAS Neurons.
bioRxiv : the preprint server for biologyDigital gait markers to potentially distinguish fragile X-associated tremor/ataxia syndrome, Parkinson's disease, and essential tremor.
Frontiers in neurologyNeurodegeneration of White and Gray Matter in the Hippocampus with FXTAS.
International journal of molecular sciencesOpen-Label Sulforaphane Trial in FMR1 Premutation Carriers with Fragile-X-Associated Tremor and Ataxia Syndrome (FXTAS).
CellsFMR1 Carriers Report Executive Function Changes Prior to Fragile X-Associated Tremor/Ataxia Syndrome: A Longitudinal Study.
Movement disorders : official journal of the Movement Disorder SocietyFXTAS Neuropathology Includes Widespread Reactive Astrogliosis and White Matter Specific Astrocyte Degeneration.
Annals of neurologySensorimotor and inhibitory control in aging FMR1 premutation carriers.
Frontiers in human neuroscienceThe Frequency of Intermediate Alleles in Patients with Cerebellar Phenotypes.
Cerebellum (London, England)Exploration of SUMO2/3 Expression Levels and Autophagy Process in Fragile X-Associated Tremor/Ataxia Syndrome: Addressing Study Limitations and Insights for Future Research.
CellsTrehalose consumption ameliorates pathogenesis in an inducible mouse model of the Fragile X-associated tremor/ataxia syndrome.
Nutritional neuroscienceInsight and Recommendations for Fragile X-Premutation-Associated Conditions from the Fifth International Conference on FMR1 Premutation.
CellsA Longitudinal Study of Executive Function in Daily Life in Male Fragile X Premutation Carriers and Association with FXTAS Conversion.
medRxiv : the preprint server for health sciencesBlood Proteome Profiling Reveals Biomarkers and Pathway Alterations in Fragile X PM at Risk for Developing FXTAS.
International journal of molecular sciencesBrain Metabolomics in Fragile X-Associated Tremor/Ataxia Syndrome (FXTAS).
CellsA Case of Fragile-X-Associated Tremor/Ataxia Syndrome Without Tremor.
Journal of clinical neurology (Seoul, Korea)Social and physical predictors of mental health impact in adult women who have an FMR1 premutation.
Genetics in medicine openA Postmortem MRI Study of Cerebrovascular Disease and Iron Content at End-Stage of Fragile X-Associated Tremor/Ataxia Syndrome.
CellsDissecting the roles of EIF4G homologs reveals DAP5 as a modifier of CGG repeat-associated toxicity in a Drosophila model of FXTAS.
Neurobiology of diseaseAtypical vocal quality in women with the FMR1 premutation: an indicator of impaired sensorimotor control.
Experimental brain researchGlial dysregulation in the human brain in fragile X-associated tremor/ataxia syndrome.
Proceedings of the National Academy of Sciences of the United States of AmericaClinical implications of somatic allele expansion in female FMR1 premutation carriers.
Scientific reportsMouse models of fragile X-related disorders.
Disease models & mechanismsEvaluation of AQP4 functional variants and its association with fragile X-associated tremor/ataxia syndrome.
Frontiers in aging neuroscienceDrosophila melanogaster as a Model to Study Fragile X-Associated Disorders.
GenesRecent advances in CGG repeat diseases and a proposal of fragile X-associated tremor/ataxia syndrome, neuronal intranuclear inclusion disease, and oculophryngodistal myopathy (FNOP) spectrum disorder.
Journal of human geneticsStructure and Alternative Splicing of the Antisense FMR1 (ASFMR1) Gene.
Molecular neurobiology[The neuropathological mechanism on guanine-rich repeat expansion diseases].
Nihon yakurigaku zasshi. Folia pharmacologica JaponicaScreening for the FMR1 premutation in Greek patients with late-onset movement disorders.
Parkinsonism & related disordersArtificial neural network applied to fragile X-associated tremor/ataxia syndrome stage diagnosis based on peripheral mitochondrial bioenergetics and brain imaging outcomes.
Scientific reportsTophaceous gout of the nose in a male FMR1 premutation carrier.
Clinical case reportsRelationships of Motor Changes with Cognitive and Neuropsychiatric Features in FMR1 Male Carriers Affected with Fragile X-Associated Tremor/Ataxia Syndrome.
Brain sciencesThe effect of college degree attainment on neurodegenerative symptoms in genetically at-risk women.
SSM - population healthFragile X-associated tremor ataxia syndrome rating scale: Revision and content validity using a mixed method approach.
Frontiers in neurologyA Systematic Review of Fragile X-Associated Neuropsychiatric Disorders.
The Journal of neuropsychiatry and clinical neurosciencesThe inherited cerebellar ataxias: an update.
Journal of neurologyExpression and characterisation of Fmr1 splice variants during folliculogenesis in the rat.
Reproduction, fertility, and developmentNon-canonical DNA/RNA structures associated with the pathogenesis of Fragile X-associated tremor/ataxia syndrome and Fragile X syndrome.
Frontiers in geneticsCGG repeats trigger translational frameshifts that generate aggregation-prone chimeric proteins.
Nucleic acids researchCerebellum neuropathology and motor skill deficits in fragile X syndrome.
International journal of developmental neuroscience : the official journal of the International Society for Developmental NeuroscienceQuality of Life in Fragile X-Associated Tremor/Ataxia Syndrome.
Movement disorders clinical practiceAbsence of diffusion-weighted imaging abnormalities in a patient with neuronal intranuclear inclusion disease.
Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical NeurophysiologyBoth cis and trans-acting genetic factors drive somatic instability in female carriers of the FMR1 premutation.
Scientific reportsAutism spectrum disorder in the fragile X premutation state: possible mechanisms and implications.
Journal of neurologyThe International Fragile X Premutation Registry: building a resource for research and clinical trial readiness.
Journal of medical geneticsRNA Helicases in Microsatellite Repeat Expansion Disorders and Neurodegeneration.
Frontiers in geneticsThe polyG diseases: a new disease entity.
Acta neuropathologica communicationsIdentification of PSMB5 as a genetic modifier of fragile X-associated tremor/ataxia syndrome.
Proceedings of the National Academy of Sciences of the United States of AmericaProsaccade and Antisaccade Behavior in Fragile X-Associated Tremor/Ataxia Syndrome Progression.
Movement disorders clinical practiceA case of idiopathic normal pressure hydrocephalus with fragile X-associated tremor/ataxia syndrome.
Clinical neurology and neurosurgery[The cellular functions of G-quadruplex in neurological diseases].
Nihon yakurigaku zasshi. Folia pharmacologica JaponicaCognitive Dysfunction in Repeat Expansion Diseases: A Review.
Frontiers in aging neuroscienceNeuropsychological changes in FMR1 premutation carriers and onset of fragile X-associated tremor/ataxia syndrome.
Journal of neurodevelopmental disordersTrinucleotide CGG Repeat Diseases: An Expanding Field of Polyglycine Proteins?
Frontiers in geneticsPartners in crime: Proteins implicated in RNA repeat expansion diseases.
Wiley interdisciplinary reviews. RNARare tremors and tremors occurring in other neurological disorders.
Journal of the neurological sciencesClinical and Molecular Correlates of Abnormal Changes in the Cerebellum and Globus Pallidus in Fragile X Premutation.
Frontiers in neurologyFragile X-Associated Tremor/Ataxia Syndrome (FXTAS): A Gender Perspective.
Journal of clinical medicineMechanistic convergence across initiation sites for RAN translation in fragile X associated tremor ataxia syndrome.
Human molecular geneticsIncreased Pain Symptomatology Among Females vs. Males With Fragile X-Associated Tremor/Ataxia Syndrome.
Frontiers in psychiatrySmall Molecule Screening Discovers Compounds that Reduce FMRpolyG Protein Aggregates and Splicing Defect Toxicity in Fragile X-Associated Tremor/Ataxia Syndrome.
Molecular neurobiologyFamily history of FXTAS is associated with age-related cognitive-linguistic decline among mothers with the FMR1 premutation.
Journal of neurodevelopmental disordersNeurodegenerative diseases associated with non-coding CGG tandem repeat expansions.
Nature reviews. NeurologyFragile X Premutation: Medications, Therapy and Lifestyle Advice.
Pharmacogenomics and personalized medicineDelineating the Relationships Between Motor, Cognitive-Executive and Psychiatric Symptoms in Female FMR1 Premutation Carriers.
Frontiers in psychiatryAllopregnanolone Improves Locomotor Activity and Arousal in the Aged CGG Knock-in Mouse Model of Fragile X-Associated Tremor/Ataxia Syndrome.
Frontiers in neuroscienceTeaching Video NeuroImage: Tremor and Cerebellar Ataxia in a Patient With Fragile X-Associated Tremor/Ataxia Syndrome.
NeurologyRecent research in fragile X-associated tremor/ataxia syndrome.
Current opinion in neurobiologyCellular Bioenergetics and AMPK and TORC1 Signalling in Blood Lymphoblasts Are Biomarkers of Clinical Status in FMR1 Premutation Carriers.
Frontiers in psychiatryFrequency of FMR1 Premutation Alleles in Patients with Undiagnosed Cerebellar Ataxia and Multiple System Atrophy in the Japanese Population.
Cerebellum (London, England)Type II Alexander disease with fragile X mental retardation 1 gene mutation.
Clinical neurology and neurosurgeryNeuroimaging Insight Into Fragile X-Associated Neuropsychiatric Disorders: Literature Review.
Frontiers in psychiatryUpstream open reading frame with NOTCH2NLC GGC expansion generates polyglycine aggregates and disrupts nucleocytoplasmic transport: implications for polyglycine diseases.
Acta neuropathologicaParkinsonism and tremor syndromes.
Journal of the neurological sciencesMechanisms of Genome Instability in the Fragile X-Related Disorders.
GenesPredictors of Comorbid Conditions in Women Who Carry an FMR1 Premutation.
Frontiers in psychiatryFXTAS is difficult to differentiate from neuronal intranuclear inclusion disease through skin biopsy: a case report.
BMC neurologyRelationships between Mitochondrial Function, AMPK, and TORC1 Signaling in Lymphoblasts with Premutation Alleles of the FMR1 Gene.
International journal of molecular sciencesCase Report: Coexistence of Alzheimer-Type Neuropathology in Fragile X-Associated Tremor Ataxia Syndrome.
Frontiers in neurosciencePaternal retraction of a fragile X allele to normal size, showing normal function over two generations.
American journal of medical genetics. Part ASRSF protein kinase 1 modulates RAN translation and suppresses CGG repeat toxicity.
EMBO molecular medicineBrain Atrophy and White Matter Damage Linked to Peripheral Bioenergetic Deficits in the Neurodegenerative Disease FXTAS.
International journal of molecular sciences(Dys)function Follows Form: Nucleic Acid Structure, Repeat Expansion, and Disease Pathology in FMR1 Disorders.
International journal of molecular sciencesPrevalence of Fragile X-Associated Tremor/Ataxia Syndrome in Patients with Cerebellar Ataxia in Japan.
Cerebellum (London, England)Metabolomic Biomarkers Are Associated With Area of the Pons in Fragile X Premutation Carriers at Risk for Developing FXTAS.
Frontiers in psychiatryPersistence of cerebellar ataxia during chronic ethanol exposure is associated with epigenetic up-regulation of Fmr1 gene expression in rat cerebellum.
Alcoholism, clinical and experimental researchMolecular Pathogenesis and Peripheral Monitoring of Adult Fragile X-Associated Syndromes.
International journal of molecular sciencesThe Phenotypic Profile Associated With the FMR1 Premutation in Women: An Investigation of Clinical-Behavioral, Social-Cognitive, and Executive Abilities.
Frontiers in psychiatryClinicopathological features of neuronal intranuclear inclusion disease diagnosed by skin biopsy.
Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical NeurophysiologyCyclic mismatch binding ligands interact with disease-associated CGG trinucleotide repeats in RNA and suppress their translation.
Nucleic acids researchMen with FMR1 premutation alleles of less than 71 CGG repeats have low risk of being affected with fragile X-associated tremor/ataxia syndrome (FXTAS).
Journal of medical geneticsHuman oncoprotein 5MP suppresses general and repeat-associated non-AUG translation via eIF3 by a common mechanism.
Cell reportsSulforaphane improves mitochondrial metabolism in fibroblasts from patients with fragile X-associated tremor and ataxia syndrome.
Neurobiology of diseaseMild Neurological Signs in FMR1 Premutation Women in an Unselected Community-Based Cohort.
Movement disorders : official journal of the Movement Disorder SocietyRelationships between motor scores and cognitive functioning in FMR1 female premutation X carriers indicate early involvement of cerebello-cerebral pathways.
Cerebellum & ataxiasCorrigendum: Human Cerebral Cortex Proteome of Fragile X-Associated Tremor/Ataxia Syndrome.
Frontiers in molecular biosciencesTherapeutic Development for CGG Repeat Expansion-Associated Neurodegeneration.
Frontiers in cellular neuroscienceCharacterization of the Cerebrospinal Fluid Proteome in Patients with Fragile X-Associated Tremor/Ataxia Syndrome.
Cerebellum (London, England)FMR1 gene CGG repeat distribution among the three individual cohorts with intellectual disability, autism, and primary ovarian insufficiency from Tamil Nadu, Southern India.
Advanced genetics (Hoboken, N.J.)Fragile X-associated tremor/ataxia syndrome: pathophysiology and management.
Current opinion in neurologyMRI Shrimp Sign in Cerebellar Progressive Multifocal Leukoencephalopathy: Description and Validation of a Novel Observation.
AJNR. American journal of neuroradiologyX-Linked Parkinsonism: Phenotypic and Genetic Heterogeneity.
Movement disorders : official journal of the Movement Disorder SocietyEnhanced detection of expanded repeat mRNA foci with hybridization chain reaction.
Acta neuropathologica communicationsSecondary structural choice of DNA and RNA associated with CGG/CCG trinucleotide repeat expansion rationalizes the RNA misprocessing in FXTAS.
Scientific reportsLaboratory testing for fragile X, 2021 revision: a technical standard of the American College of Medical Genetics and Genomics (ACMG).
Genetics in medicine : official journal of the American College of Medical GeneticsThe Molecular Function of PURA and Its Implications in Neurological Diseases.
Frontiers in geneticsFragile X premutation rCGG repeats impair synaptic growth and synaptic transmission at Drosophila larval neuromuscular junction.
Human molecular geneticsCerebral Microbleeds in Fragile X-Associated Tremor/Ataxia Syndrome.
Movement disorders : official journal of the Movement Disorder Society'Essential Tremor' Phenotype in FMR1 Premutation/Gray Zone Sibling Series: Exploring Possible Genetic Modifiers.
Twin research and human genetics : the official journal of the International Society for Twin StudiesNeuropathology of FMR1-premutation carriers presenting with dementia and neuropsychiatric symptoms.
Brain communicationsShort antisense oligonucleotides alleviate the pleiotropic toxicity of RNA harboring expanded CGG repeats.
Nature communicationsHuman Cerebral Cortex Proteome of Fragile X-Associated Tremor/Ataxia Syndrome.
Frontiers in molecular biosciencesDifferential Progression of Motor Dysfunction Between Male and Female Fragile X Premutation Carriers Reveals Novel Aspects of Sex-Specific Neural Involvement.
Frontiers in molecular biosciencesAbundancy of polymorphic CGG repeats in the human genome suggest a broad involvement in neurological disease.
Scientific reportsExpression of expanded FMR1-CGG repeats alters mitochondrial miRNAs and modulates mitochondrial functions and cell death in cellular model of FXTAS.
Free radical biology & medicineBrain 18F-FDG and 18F-Flumetamol PET Imaging of Fragile X-Associated Tremor Ataxia Syndrome.
Clinical nuclear medicineFragile X premutation and associated health conditions: A review.
Clinical geneticsFragile-X-Associated Tremor/Ataxia Syndrome or Alcohol-Induced Cerebellar Degeneration? A Case Report.
Case reports in neurologymiRNA expression and interaction with the 3'UTR of FMR1 in FRAXopathy pathogenesis.
Non-coding RNA researchPremutations in the FMR1 gene in Serbian patients with undetermined tremor, ataxia and parkinsonism.
Neurological researchLack of a Clear Behavioral Phenotype in an Inducible FXTAS Mouse Model Despite the Presence of Neuronal FMRpolyG-Positive Aggregates.
Frontiers in molecular biosciencesUpper and Lower Limb Movement Kinematics in Aging FMR1 Gene Premutation Carriers.
Brain sciencesGenetic and Pathological Characteristic Patterns of a Family With Neuronal Intranuclear Inclusion Disease.
Journal of neuropathology and experimental neurologyCharacterization of the Metabolic, Clinical and Neuropsychological Phenotype of Female Carriers of the Premutation in the X-Linked FMR1 Gene.
Frontiers in molecular biosciencesMetabolic Alterations in FMR1 Premutation Carriers.
Frontiers in molecular biosciencesWomen with Fragile X-associated Tremor/Ataxia Syndrome.
Movement disorders clinical practiceLabel-free Electrochemical Detection of CGG Repeats on Inkjet Printable 2D Layers of MoS2.
ACS applied materials & interfacesCardiovascular Problems in the Fragile X Premutation.
Frontiers in geneticsMetabolic profiling reveals dysregulated lipid metabolism and potential biomarkers associated with the development and progression of Fragile X-Associated Tremor/Ataxia Syndrome (FXTAS).
FASEB journal : official publication of the Federation of American Societies for Experimental BiologyThe Effects of Dual Task Cognitive Interference and Fast-Paced Walking on Gait, Turns, and Falls in Men and Women with FXTAS.
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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.
- T2-FLAIR hyperintensities in the inferior cerebellar peduncles and their association with clinical symptoms, molecular and MRI markers in male FMR1 premutation carriers.
- Protective role of PASH-1 in CGG repeat-driven RNA and protein toxicity in FXTAS.
- Hereditary Ataxias: From Pathogenesis and Clinical Features to Neuroimaging, Fluid, and Digital Biomarkers-A Scoping Review.
- Progression of fragile X-associated tremor/ataxia syndrome revealed by subtype and stage inference.
- Integrative transcriptome-wide association analyses reveal PRKCG-linked GABAergic dysfunction in Fragile X-associated tremor/ataxia syndrome.
- Comprehensive, multidisciplinary care for fragile X-associated tremor/ataxia syndrome.
- FXTAS and the Spectrum of FMR1 Premutation-Associated Phenotypes in Latin America: A Scoping Review.
- Studies on copper (II) interaction with the (CCG)(12) repeats sequence: An insight into genomic instability in neurodegeneration.
- Relationship Between Neurologic Symptoms and Signs and FMR1 Genotype in Premutation Carriers.
- An Autopsy Case With Fragile X-Associated Tremor/Ataxia Syndrome Presenting Intranuclear Inclusion Bodies Mainly in the Limbic System.
Bases de dados e fontes oficiais
Identificadores e referências canônicas usadas para montar este verbete.
- ORPHA:93256(Orphanet)
- OMIM OMIM:300623(OMIM)
- MONDO:0010382(MONDO)
- GARD:16806(GARD (NIH))
- Variantes catalogadas(ClinVar)
- Busca completa no PubMed(PubMed)
- Q1440436(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
