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Perturbação do desenvolvimento intelectual sindrômica ligada ao X KDM5C-relacionada
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Introdução

O que você precisa saber de cara

📋

Distúrbio do desenvolvimento intelectual sindrômico ligado ao X, causado por mutações no gene KDM5C. Apresenta deficiência intelectual, cúbito valgo, macrotia, insensibilidade à dor e maior risco de infecções respiratórias recorrentes.

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
Casos conhecidos
10
pacientes catalogados
Início
Childhood
🏥
SUS: Cobertura mínimaScore: 35%
Centros em: PA, PR, RS, ES, RJ +5CID-10: Q87.8
🇧🇷Dados SUS / DATASUS
PROCEDIMENTOS SIGTAP (5)
0202010503
Cariótipo — bandas G, Q ou Rgenetic_test
0202010600
Pesquisa de microdeleções/microduplicações por FISHlab_test
0202010694
Sequenciamento completo do exoma (WES)rehabilitation
0202010260
Dosagem de alfa-fetoproteína
0301070040
Atendimento em reabilitação — doenças raras
Você se identifica com essa condição?
O Raras está aqui pra te apoiar — com ou sem diagnóstico

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

🧠
Neurológico
13 sintomas
🦴
Ossos e articulações
9 sintomas
😀
Face
9 sintomas
👁️
Olhos
4 sintomas
📏
Crescimento
3 sintomas
🫁
Pulmão
2 sintomas

+ 25 sintomas em outras categorias

Características mais comuns

100%prev.
Cúbito valgo
Frequência: 2/2
100%prev.
Início na infância
Frequência: 3/3
100%prev.
Macrotia
Frequência: 2/2
100%prev.
Infecções respiratórias recorrentes
Frequência: 3/3
100%prev.
Hiperatividade
Frequência: 3/3
100%prev.
Atraso no desenvolvimento da fala e da linguagem
Muito frequente (99-80%)
68sintomas
Muito frequente (17)
Frequente (11)
Ocasional (27)
Sem dados (13)

Os sintomas variam de pessoa para pessoa. Abaixo estão as 68 características clínicas mais associadas, ordenadas por frequência.

Cúbito valgoCubitus valgus
Frequência: 2/2100%
Início na infânciaChildhood onset
Frequência: 3/3100%
Macrotia
Frequência: 2/2100%
Infecções respiratórias recorrentesRecurrent respiratory infections
Frequência: 3/3100%
HiperatividadeHyperactivity
Frequência: 3/3100%

Linha do tempo da pesquisa

Publicações por ano — veja quando o interesse científico cresceu
Anos de pesquisa1desde 2026
Últimos 10 anos200publicações
Pico2025156 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

1 gene identificado com associação a esta condição. Padrão de herança: X-linked recessive.

KDM5CLysine-specific demethylase 5CDisease-causing germline mutation(s) inAltamente restrito
FUNÇÃO

Histone demethylase that specifically demethylates 'Lys-4' of histone H3, thereby playing a central role in histone code (PubMed:28262558). Does not demethylate histone H3 'Lys-9', H3 'Lys-27', H3 'Lys-36', H3 'Lys-79' or H4 'Lys-20'. Demethylates trimethylated and dimethylated but not monomethylated H3 'Lys-4'. Participates in transcriptional repression of neuronal genes by recruiting histone deacetylases and REST at neuron-restrictive silencer elements. Represses the CLOCK-BMAL1 heterodimer-me

LOCALIZAÇÃO

Nucleus

VIAS BIOLÓGICAS (1)
HDMs demethylate histones
MECANISMO DE DOENÇA

Intellectual developmental disorder, X-linked, syndromic, Claes-Jensen type

A disorder characterized by significantly below average general intellectual functioning associated with impairments in adaptive behavior and manifested during the developmental period. MRXSCJ patients manifest intellectual disability associated with variable features such as slowly progressive spastic paraplegia, seizures, facial dysmorphism.

EXPRESSÃO TECIDUAL(Ubíquo)
Ovário
77.2 TPM
Útero
76.8 TPM
Cervix Endocervix
73.6 TPM
Fallopian Tube
73.3 TPM
Cervix Ectocervix
72.7 TPM
OUTRAS DOENÇAS (1)
syndromic X-linked intellectual disability Claes-Jensen type
HGNC:11114UniProt:P41229

Variantes genéticas (ClinVar)

518 variantes patogênicas registradas no ClinVar.

🧬 KDM5C: NM_004187.5(KDM5C):c.1875_1876dup (p.Gly626fs) ()
🧬 KDM5C: NM_004187.5(KDM5C):c.3740_3741del (p.Cys1247fs) ()
🧬 KDM5C: NM_004187.5(KDM5C):c.2353G>A (p.Asp785Asn) ()
🧬 KDM5C: NM_004187.5(KDM5C):c.2129G>A (p.Cys710Tyr) ()
🧬 KDM5C: NM_004187.5(KDM5C):c.501C>G (p.Tyr167Ter) ()
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 — Perturbação do desenvolvimento intelectual sindrômica ligada ao X KDM5C-relacionada

Centros de Referência SUS

13 centros habilitados pelo SUS para Perturbação do desenvolvimento intelectual sindrômica ligada ao X KDM5C-relacionada

Centros para Perturbação do desenvolvimento intelectual sindrômica ligada ao X KDM5C-relacionada

Detalhes dos centros

Hospital Infantil Albert Sabin

R. Tertuliano Sales, 544 - Vila União, Fortaleza - CE, 60410-794 · CNES 2407876

Serviço de Referência

Rota
Anomalias CongênitasDeficiência Intelectual

Hospital de Apoio de Brasília (HAB)

AENW 3 Lote A Setor Noroeste - Plano Piloto, Brasília - DF, 70684-831 · CNES 0010456

Serviço de Referência

Rota
Anomalias CongênitasErros Inatos do MetabolismoDeficiência Intelectual

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

Rota
Anomalias CongênitasErros Inatos do MetabolismoDeficiência Intelectual

Hospital das Clínicas da UFMG

Av. Prof. Alfredo Balena, 110 - Santa Efigênia, Belo Horizonte - MG, 30130-100 · CNES 2280167

Serviço de Referência

Rota
Anomalias CongênitasErros Inatos do MetabolismoDeficiência Intelectual

Hospital Universitário João de Barros Barreto

R. dos Mundurucus, 4487 - Guamá, Belém - PA, 66073-000 · CNES 2337878

Serviço de Referência

Rota
Anomalias CongênitasErros Inatos do MetabolismoDeficiência Intelectual

Instituto de Medicina Integral Prof. Fernando Figueira (IMIP)

R. dos Coelhos, 300 - Boa Vista, Recife - PE, 50070-902 · CNES 0000647

Serviço de Referência

Rota
Anomalias CongênitasErros Inatos do MetabolismoDeficiência Intelectual

Hospital Pequeno Príncipe

R. Des. Motta, 1070 - Água Verde, Curitiba - PR, 80250-060 · CNES 3143805

Serviço de Referência

Rota
Anomalias CongênitasDeficiência Intelectual

Hospital de Clínicas da UFPR

R. Gen. Carneiro, 181 - Alto da Glória, Curitiba - PR, 80060-900 · CNES 2364980

Serviço de Referência

Rota
Anomalias CongênitasErros Inatos do MetabolismoDeficiência Intelectual

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

Rota
Anomalias CongênitasErros Inatos do MetabolismoDeficiência Intelectual

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

Rota
Anomalias CongênitasErros Inatos do MetabolismoDeficiência Intelectual

Hospital das Clínicas da FMUSP

R. Dr. Ovídio Pires de Campos, 225 - Cerqueira César, São Paulo - SP, 05403-010 · CNES 2077485

Serviço de Referência

Rota
Anomalias CongênitasErros Inatos do MetabolismoDeficiência Intelectual

Hospital de Clínicas da UNICAMP

R. Vital Brasil, 251 - Cidade Universitária, Campinas - SP, 13083-888 · CNES 2748223

Serviço de Referência

Rota
Anomalias CongênitasErros Inatos do MetabolismoDeficiência Intelectual

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

Rota
Anomalias CongênitasErros Inatos do MetabolismoDeficiência Intelectual
Sobre os centros SUS: Estes centros são habilitados pelo Ministério da Saúde como Serviços de Referência em Doenças Raras ou Serviços de Atenção Especializada. O atendimento é pelo SUS, com encaminhamento da rede de atenção básica.

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

A KCNC1 variant linked to Rett syndrome disrupts ER to Golgi trafficking of Kv3.1 channel.

Proceedings of the National Academy of Sciences of the United States of America2026 Mar 17

Este estudo identifica uma nova variante genética (KCNC1) associada à Síndrome de Rett em uma paciente, fornecendo uma base molecular para a doença. A pesquisa demonstra que essa mutação específica no canal iônico Kv3.1 (S474C) impede sua correta chegada à superfície das células nervosas, retendo-o dentro do retículo endoplasmático. Essa falha no transporte do canal resulta em uma diminuição crucial na frequência de disparo neuronal, o que contribui diretamente para os sintomas neurológicos e o desenvolvimento da Síndrome de Rett.

🇧🇷 traduzido
#2

Modulating alternative splicing of MECP2 is a potential therapeutic strategy for Rett syndrome.

Science translational medicine2026 Mar 04

Este estudo inovador propõe uma nova estratégia terapêutica para a Síndrome de Rett, uma doença neurológica grave com tratamentos atualmente limitados, focando no aumento da proteína MeCP2, que é deficiente nos pacientes. A técnica consiste em modular a forma como o gene MECP2 é 'lido' (splicing alternativo) para priorizar a produção de uma versão mais eficiente e abundante da proteína (isoforma e1). Testes em modelos de camundongos e em neurônios derivados de células-tronco de pacientes demonstraram que essa modulação aumentou os níveis de MeCP2 em até 60% e reverteu significantemente alterações morfológicas, eletrofisiológicas e genéticas associadas à doença. Esses resultados abrem caminho para o desenvolvimento de terapias baseadas em oligonucleotídeos antisentido (ASOs) que, ao promoverem essa mudança no splicing, poderiam oferecer uma nova e promissora opção de tratamento para pacientes com Síndrome de Rett, especialmente aqueles com alelos MECP2 parcialmente funcionais.

🇧🇷 traduzido
#3

Emerging role of KDM5C in X-linked intellectual disability based on human genetic data and zebrafish models.

Frontiers in molecular neuroscience2026

A síndrome de Claes-Jensen, uma condição ligada ao cromossomo X causada por variantes no gene KDM5C, se manifesta com deficiência intelectual severa e características físicas em homens, e sintomas mais leves em mulheres portadoras. Este estudo expandiu o espectro de variantes e, crucialmente, revelou que a disfunção do KDM5C leva a neuroinflamação, identificando a inibição da via do receptor Toll-like como um promissor alvo terapêutico para aliviar os sintomas.

🇧🇷 traduzido
#4

Orofacial clefting in PHF6-related Börjeson-Forssman-Lehmann syndrome.

BMJ case reports2026 Feb 25

A Síndrome de Börjeson-Forssman-Lehmann (BFLS) é uma doença rara ligada ao cromossomo X, causada por alterações no gene PHF6, que tipicamente causa deficiência intelectual e atraso no desenvolvimento. Este artigo evidencia que a fenda orofacial, anteriormente não considerada uma característica principal, pode ser uma manifestação recorrente, ainda que incomum, desta síndrome. Para médicos, isso sugere a importância de incluir o teste genético do PHF6 em pacientes com fenda orofacial sindrômica acompanhada de atraso no neurodesenvolvimento ou dismorfismo.

🇧🇷 traduzido
#5

A human electrophysiological signature of Fragile X pathophysiology is shared in V1 of Fmr1-/y mice.

Nature communications2026 Feb 09

Este estudo identificou uma alteração comum na atividade cerebral (oscilações alfa lentificadas) em pacientes com Síndrome do X Frágil e em um modelo de camundongo da doença, sendo mais acentuada em adultos. Essa "assinatura" eletrofisiológica, que reflete disfunções em células cerebrais específicas e mostra uma resposta reduzida a certos medicamentos (como o Arbaclofen) no modelo animal da doença, oferece uma ferramenta promissora. Para pacientes e médicos, isso permite uma compreensão mais profunda da fisiopatologia da Síndrome do X Frágil e a possibilidade de testar e prever a eficácia de futuros tratamentos de forma mais eficiente, reduzindo a lacuna entre a pesquisa e a prática clínica.

🇧🇷 traduzido

Publicações recentes

Ver todas no PubMed

📚 EuropePMCmostrando 199

2026

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 Neuropathology
2026

A KCNC1 variant linked to Rett syndrome disrupts ER to Golgi trafficking of Kv3.1 channel.

Proceedings of the National Academy of Sciences of the United States of America
2026

Development of an integrative cross-omics approach for conceptual adverse outcome pathway network construction.

Environment international
2026

[Features of premorbid status in patients with Rett syndrome].

Zhurnal nevrologii i psikhiatrii imeni S.S. Korsakova
2026

Modulating alternative splicing of MECP2 is a potential therapeutic strategy for Rett syndrome.

Science translational medicine
2026

Foundations of an Ovine Model of Fragile X Syndrome.

Genes
2026

Emerging role of KDM5C in X-linked intellectual disability based on human genetic data and zebrafish models.

Frontiers in molecular neuroscience
2026

Orofacial clefting in PHF6-related Börjeson-Forssman-Lehmann syndrome.

BMJ case reports
2026

Altered Brain Structure in an ATRX-Deficient Mouse Model of Autism Spectrum Disorder.

Autism research : official journal of the International Society for Autism Research
2026

Börjeson-Forssman-Lehmann Syndrome in a Pediatric Patient: A Four-Year Longitudinal Case Report Focused on Functional Evolution and Rehabilitation.

Cureus
2026

Bioisostere-Driven Discovery of SePP: A Selenium-Containing Polypharmacological Agent Relevant to Fragile X Syndrome.

Journal of medicinal chemistry
2026

A human electrophysiological signature of Fragile X pathophysiology is shared in V1 of Fmr1-/y mice.

Nature communications
2026

Behavioral Phenotype Associations With Resting State EEG Signal Complexity and Power Spectral Density in Fragile X Syndrome.

Autism research : official journal of the International Society for Autism Research
2026

Hippocampal glial alterations are associated with Lamin B1 dysregulation and abnormal nuclear morphology in a rat model of fragile X syndrome.

Neurobiology of disease
2026

Type 2 Diabetes in a Portuguese Adolescent With Hijazi-Reis Syndrome.

Cureus
2026

Prenatal diagnosis of distal Xq28 duplication syndrome: case reports and literature review.

Molecular cytogenetics
2026

Profiling metabotropic glutamate receptor 7 expression in Rett syndrome: consequences for pharmacotherapy.

Neuroscience
2026

Unexpectedly competent immune response to SARS-CoV-2 vaccination in Rett syndrome.

Human vaccines &amp; immunotherapeutics
2025

Coffin-Lowry syndrome: a systematic review of RPS6KA3 confirmed cases and implications for diagnosis and counseling.

Frontiers in genetics
2025

A Zebrafish Seizure Model of cblX Syndrome Reveals a Dose-Dependent Response to mTor Inhibition.

Journal of developmental biology
2026

Novel variants in STAG2 and PKD1 associate with multiple congenital malformations and autosomal dominant polycystic kidney disease in a Chinese family: A case report and literature review.

Experimental and therapeutic medicine
2026

Metabolic reprogramming during human neuron differentiation indicates glutaminase as a key determinant in Fragile X syndrome.

Cell reports
2026

Safety profile of idursulfase administered at home in patients with mucopolysaccharidosis II enrolled in the Hunter Outcome Survey.

Molecular genetics and metabolism
2025

[Case Report of One Family With Coffin-Lowry Syndrome and Literature Review of 28 Cases in China].

Sichuan da xue xue bao. Yi xue ban = Journal of Sichuan University. Medical science edition
2026

Functional skills in MECP2 duplication syndrome: developmental dynamics and regression.

Orphanet journal of rare diseases
2026

Thyrotoxicosis in MCT8 deficiency.

The Journal of clinical endocrinology and metabolism
2026

The missense mutation Y65C in PQBP1 causes microcephaly and cognitive deficits through a combination of partial loss-of-function and gain-of-function effects.

Nature communications
2026

Integrative transcriptome-wide association analyses reveal PRKCG-linked GABAergic dysfunction in Fragile X-associated tremor/ataxia syndrome.

Nature communications
2026

Elevated serotonin receptor 2A signaling restores learning and memory in a Fragile X syndrome model.

Scientific reports
2026

Alterations in electroencephalography signals in female fragile X syndrome mouse model on a C57BL/6J background.

Physiology &amp; behavior
2025

Dysfunctional neural dynamics associated with sensory phenotypes in Fragile X syndrome: insights from mouse models.

Journal of neurodevelopmental disorders
2026

Systemic administration of the OGT inhibitor OSMI-1 normalizes hippocampal O-GlcNAcylation and improves recognition memory, redox balance, and brain mitochondrial homeostasis in a Rett syndrome mouse model.

Free radical biology &amp; medicine
2026

Alterations in auditory midbrain processing is observed in both female and male mouse model of Fragile X Syndrome.

Neuroscience
2026

Astrocytic GABA controls fidelity of temporal cortical processing in Fragile X Syndrome.

Neurobiology of disease
2025

Uncovering Proteomic and Biochemical Alterations in Plasma from Lesch-Nyhan Disease Patients.

Cellular and molecular neurobiology
2025

MeCP2 regulates telencephalic development in human cerebral organoids.

Cell reports
2025

Palmitic acid differently modulates extracellular vesicles and cellular fatty acid composition of SGBS adipocytes without impairing their insulin signaling.

Frontiers in endocrinology
2025

IGF2BPs directly regulate the noncanonical translation of toxic proteins from mutant FMR1 mRNA containing expanded CGG repeats.

Nature communications
2025

Misdiagnosis of 99mTc-PYP-positive Danon disease as ATTR-CA: a case report and molecular imaging pitfalls.

BMC cardiovascular disorders
2026

Doublecortin-expressing cells are selectively altered in the piriform cortex but not in neurogenic areas of symptomatic Mecp2-heterozygous mice.

Neuroscience
2025

MeCP2-driven chromatin organization controls nuclear stiffness.

Communications biology
2025

Capsaicin camphor and caffeic acid reduce adipogenesis and promote lipolysis with TRPV1 involvement.

Scientific reports
2025

Regulatory Functions of TDP-43 and FMRP in Non-Neuronal Diseases: Are Co-Targeted mRNAs the Keys?

FASEB journal : official publication of the Federation of American Societies for Experimental Biology
2026

Cell-intrinsic mechanisms underlying spontaneous activity in the mouse visual cortical slice: implications for fragile X pathophysiology.

Journal of neurophysiology
2025

From Caudal Regression to Wieacker-Wolff Syndrome: The Decisive Role of Postmortem Examination and Exome Sequencing in Revising a Prenatal Diagnosis.

Cureus
2025

A Novel STAG2 Frameshift Variant in Mullegama-Klein-Martinez Syndrome with Complex Conotruncal Heart Defect.

Genes
2025

Reduced Sensorimotor, Working Memory, and Episodic Memory Abilities in Aging Female FMR1 Premutation Carriers with and Without Fragile X-Associated Tremor/Ataxia Syndrome (FXTAS).

Genes
2025

Disrupted theta synchronization and synaptic connectivity in the visual cortex of Fmr1 KO mice.

Nature communications
2025

Effects of Metformin on children with Fragile X Syndrome: a randomized, double-blind, placebo-controlled trial.

Molecular autism
2026

Enhanced CB1 receptor function in GABAergic neurons mediates hyperexcitability and impaired sensory-driven synchrony of cortical circuits in Fragile X Syndrome model mice.

Molecular psychiatry
2025

Early Pragmatic Communication in Autism and Fragile X Syndrome.

Journal of speech, language, and hearing research : JSLHR
2025

Evaluation and follow-up of newborns screening positive for mucopolysaccharidosis II: Results from an international modified Delphi consensus.

Molecular genetics and metabolism
2026

Longitudinal Characterization of Males With X-Linked Creatine Transporter Deficiency: Final Results of a Multiyear Observational Study.

Pediatric neurology
2025

Monogenic defects in Russian children with autism spectrum disorders.

World journal of clinical pediatrics
2025

Cardiovascular Collapse During Scoliosis Surgery in a Patient With Coffin-Lowry Syndrome and Mesocardia.

Cureus
2026

Prominent U-waves without QT prolongation in X-linked creatine transporter deficiency caused by SLC6A8 variants.

Heart rhythm
2026

Astrocytic Chromatin Remodeler ATRX Gates Hippocampal Memory Consolidation Through Metabolic and Synaptic Regulation.

Glia
2026

Age-varying distinct neuroanatomy in young children with autism spectrum disorder and fragile X syndrome.

Molecular psychiatry
2026

Nance-Horan Syndrome: Further Delineation of the Affected Male and the Female Carrier Phenotypes.

American journal of medical genetics. Part A
2025

Second occurrence of the PAK3-R67C variation and multiscale analysis of the corresponding knock-in mice reveal novel phenotypic features and functional synaptic defects.

Neurobiology of disease
2026

Improving women's healthcare providers' knowledge about fragile X-associated primary ovarian insufficiency through a novel educational tool.

Journal of assisted reproduction and genetics
2025

Gene Therapy for Fragile X Syndrome, Challenges, and Promises.

The journal of gene medicine
2025

Ghrelin restores D1 receptor-mediated dopamine neurotransmission and enhances attentive behaviour in Mecp2 KO mice.

European journal of pharmacology
2025

The imperative for multigenerational genetic screening: A case report of fragile X-associated tremor/ataxia syndrome (FXTAS).

Medicine
2025

Aberrant hippocampal gamma oscillations in a mouse model of fragile X syndrome: insights from in vitro slice models.

Molecular autism
2025

Spermine synthase in Snyder-Robinson syndrome and cancer.

Molecular biology reports
2025

Personalized Follow Up and Genetic Diagnosis Update of FMR1-Related Conditions: A Change in Diagnosis, Prognosis and Expectations.

International journal of molecular sciences
2025

Investigating the "Dark" Genome: First Report of Partington Syndrome in Cyprus.

Genes
2025

Linking Genotype to Clinical Features in SMC1A-Related Phenotypes: From Cornelia de Lange Syndrome to Developmental and Epileptic Encephalopathy, a Comprehensive Review.

Genes
2025

A Case Report: Co-Occurrence of TNRC6B Gene Variant and Xq28 Microdeletion Syndrome With Comprehensive Literature Review.

Birth defects research
2025

ATP6AP2-Related Disease Caused by Splicing Defects: Abnormal Glycosylation and the First Affected Female.

Journal of inherited metabolic disease
2025

Evaluating the utility of growth differentiation factor 15 and fibroblast growth factor 21 as blood biomarkers for Rett syndrome.

Scientific reports
2025

A Complex Case of Koolen-De Vries Syndrome Associated with Hypopituitarism and Type 1 Diabetes Mellitus.

Acta medica portuguesa
2025

Reactivation of Human X-Linked Gene and Stable X-Chromosome Inactivation Observed in Generation and Differentiation of iPSCs from a Female Patient with HNRNPH2 Mutation.

Cells
2026

FRAXE-associated intellectual disability: clinical and molecular insights into an underdiagnosed condition.

Journal of human genetics
2026

A 2-year-old girl with merged phenotypes: galactosemia and Coffin-Lowry syndrome.

Journal of pediatric endocrinology &amp; metabolism : JPEM
2026

Evaluating DNA methylation episignatures as a first-tier diagnostic test in individuals with suspected genetic disorders.

European journal of human genetics : EJHG
2025

Expanding the ethnic and clinical spectrum of the IDS c.1122C>T mutation: first report from Pakistan.

Neurogenetics
2025

Probing DNA damage in Rett syndrome neurons uncovers a role for MECP2 regulation of PARP1.

Stem cell reports
2025

A family case of a rare Xq28 duplication.

Vavilovskii zhurnal genetiki i selektsii
2025

Impact of brief telehealth interventions on parental stress and challenging behaviors of children with fragile X syndrome.

Orphanet journal of rare diseases
2026

Novel MCT8 mutation: diagnostic value of T3/T4 ratio.

Journal of pediatric endocrinology &amp; metabolism : JPEM
2025

The Christianson syndrome protein, sodium hydrogen exchanger isoform 6, is required for fat accumulation.

The Journal of physiology
2025

Impaired thalamic burst firing in fragile X syndrome.

Cell reports
2025

Adult-onset drug-resistant progressive epilepsy in a patient with novel MECP2 mutation.

Epileptic disorders : international epilepsy journal with videotape
2026

Fmr1 knockout disrupts multiple intrinsic properties via reduced HCN channel activity in mediodorsal thalamocortical neurons.

Experimental physiology
2025

Clinical differences in monozygotic twins with Rett syndrome: case report and systematic review.

Orphanet journal of rare diseases
2025

A Genetically Confirmed Case of ATR-X Syndrome Without Alpha-Thalassemia: First Case Reported From Jordan.

Cureus
2025

Structural insights into the substrate uptake and inhibition of the human creatine transporter (hCRT).

Proceedings of the National Academy of Sciences of the United States of America
2025

Preliminary perspectives on gene therapy in fragile X syndrome: a caregiver view.

Journal of neurodevelopmental disorders
2025

Learning impairments in Fmr1-/- mice on an audio-visual temporal pattern discrimination task.

Journal of neurodevelopmental disorders
2025

ROC Analysis of Biomarker Combinations in Fragile X Syndrome-Specific Clinical Trials: Evaluating Treatment Efficacy via Exploratory Biomarkers.

Translational psychiatry
2025

Contrasting Relationships Between Anxiety and Intolerance of Uncertainty in Cornelia de Lange and Fragile X Syndromes.

Journal of intellectual disability research : JIDR
2025

Identification of CNKSR2 Pathogenic Variant and Detection of Strong XCI in a Female Patient With Severe DEE-SWAS and Phenotype Expansion in Male Patients.

Clinical genetics
2025

Mutation of MeCP2 at T158M Leads to Distinct Molecular and Phenotypic Abnormalities in Male and Female Mice.

Cells
2025

Striking a delicate balance: ethical considerations and promising advances in timely diagnosis and patient safety for Hunter syndrome.

JPMA. The Journal of the Pakistan Medical Association
2025

Lesch-Nyhan syndrome a dental approach: case report.

African health sciences
2025

Neurobehavioral profile of individuals with pathogenic variants in CHD3.

European journal of human genetics : EJHG
2025

A 30-Year Experience in Fragile X Syndrome Molecular Diagnosis from a Laboratory in Thailand.

International journal of molecular sciences
2025

Site-specific characterization of mannose-6-phosphate-containing N-glycans on recombinant idursulfase beta for lysosomal targeting in Hunter syndrome therapy.

International journal of biological macromolecules
2025

Case Report: Cabezas syndrome caused by CUL4B gene mutations in two unrelated Chinese boys.

Frontiers in neuroscience
2025

Electroretinographic Findings in Fragile X, Premutation, and Controls: A Study of Biomarker Correlations.

International journal of molecular sciences
2025

Gene Expression Analysis of HPRT-Deficient Cells Maintained with Physiological Levels of Folic Acid.

Cells
2025

Effects of SLC6A8 mutation-induced creatine deficiency on cellular function in fibroblasts.

Scientific reports
2025

Attenuated orexinergic signaling underlies sleep-wake problems in a Mecp2-null mouse model of Rett syndrome.

Neurobiology of disease
2025

Rett syndrome: Pathogenicity and regulation of MECP2 (human) and Mecp2 (mouse) genes and their protein products through various molecular mechanisms.

Mutation research. Reviews in mutation research
2025

Therapeutic strategies for fragile X syndrome and implications for other gene-silencing disorders.

Nature genetics
2025

5-mC DNA methylation in neurodevelopment: from molecular mechanisms to therapeutic implications.

Molecular biology reports
2025

Distinct and shared intrinsic resting-state functional networks in children with idiopathic autism spectrum disorder and fragile X syndrome.

Molecular psychiatry
2025

Heart rate defined sustained attention relates to visual attention in autism and fragile X syndrome.

Scientific reports
2025

Phase separated condensates of ATRX regulate neural progenitor identity.

Nature communications
2025

Integration of Ti3C2Tx MXene in the selection of DNA aptamers for FMRP for the diagnosis of fragile X syndrome.

International journal of biological macromolecules
2025

Soy Protein Isolate Affects Blood and Brain Biomarker Expression in a Mouse Model of Fragile X.

International journal of molecular sciences
2025

FMRP drives mRNP targets into translationally silenced complexes.

Molecular cell
2025

Rett syndrome: advances in Understanding MeCP2 function, potential gene therapies, and public health implications.

Molecular biology reports
2025

Aberrant neural activation during inhibitory control in girls with fragile X syndrome.

Cerebral cortex (New York, N.Y. : 1991)
2025

Clinical and functional outcomes in pediatric patients with Rett syndrome: a 15-year retrospective study.

European journal of pediatrics
2025

Unmet needs of adults living with mucopolysaccharidosis II: data from the Hunter Outcome Survey.

Orphanet journal of rare diseases
2025

Altered auditory feature discrimination in a rat model of Fragile X Syndrome.

PLoS biology
2025

FMR1 KH0-KH1 domains coordinate m6A binding and phase separation in Fragile X syndrome.

Experimental cell research
2025

Tiratricol: First Approval.

Drugs
2025

Separation of telomere protection from length regulation by two different point mutations at amino acid 492 of RTEL1.

Nucleic acids research
2025

Altered Microglial Plasticity in the Periaqueductal Grey of Pre-Symptomatic Mecp2-Heterozygous Mice Following Early-Life Stress.

Neuromolecular medicine
2025

Molecular Insights into Neurological Regression with a Focus on Rett Syndrome-A Narrative Review.

International journal of molecular sciences
2025

CHD8 Variant and Rett Syndrome: Overlapping Phenotypes, Molecular Convergence, and Expanding the Genetic Spectrum.

Human mutation
2025

Clinical variability in individuals with ATR-X syndrome in the Netherlands.

European journal of medical genetics
2025

Structural insights into tRNA recognition of the human FTSJ1-THADA complex.

Communications biology
2025

Interactome of FMRP-N-tat therapeutic unveils key interactions for cellular function in Fragile X neurons.

The Journal of biological chemistry
2025

Behavioural difficulties in fragile X syndrome: current pharmacological options and potential future developments.

Expert review of neurotherapeutics
2025

A Transcriptomic Dataset of Embryonic Murine Telencephalon of Fmr1-Deficient Mice.

Scientific data
2025

Novel STAG2 variant expands Mullegama-Klein-Martinez Syndrome phenotype.

European journal of medical genetics
2025

Impaired persistence of cortical sensory adaptation following repetitive tactile stimulation in the hindlimb somatosensory cortex of Rett syndrome mice.

Neuroscience
2025

Potentiation of group III metabotropic glutamate receptors positively affects neurophysiological features in a mouse model of Rett syndrome.

The Journal of pharmacology and experimental therapeutics
2025

ATRX ADD domain is a versatile module for recognizing macroH2A, H3, and beyond.

Acta biochimica et biophysica Sinica
2025

Hemoglobin Disorders Associated with Neurological Impairment: First Report of ATR-X Syndrome and Recessive Congenital Methemoglobinemia Type II in Tunisia.

International journal of molecular sciences
2025

A Patient with a Small Deletion Affecting Only Exon 1-Intron 1 of the NXF5 Gene: Potential Evidence Supporting Its Role in Neurodevelopmental Disorders.

Genes
2025

MECP2 mRNA Profile in Brain Tissues from a Rett Syndrome Patient and Three Human Controls: Mutated Allele Preferential Transcription and In Situ RNA Mapping.

Biomolecules
2025

A Computational Approach to Identify Novel Protein Targets Uncovers New Potential Mechanisms of Action of Mirtazapine S(+) and R(-) Enantiomers in Rett Syndrome.

Journal of neurochemistry
2025

Efficacy and safety of idursulfase beta in the treatment of mucopolysaccharidosis II: A phase-3, 2-part study compared with a historical placebo cohort.

Genetics in medicine : official journal of the American College of Medical Genetics
2025

Exploring the Genetic Role of MECP2 Mutations on Phenotypic Presentation in Males: A Case Report.

Journal of developmental and behavioral pediatrics : JDBP
2025

Cortical layer-specific abnormalities in auditory responses in a mouse model of Fragile X Syndrome.

Neurobiology of disease
2025

MECP2 duplication syndrome: Recent advances in pathophysiology and therapeutic perspectives.

Brain &amp; development
2025

Gene replacement therapy to restore polyamine metabolism in a Snyder-Robinson syndrome mouse model.

Methods in enzymology
2025

Development and characterization of a Drosophila model of Snyder-Robinson syndrome.

Methods in enzymology
2025

Interpreting the rich dialogue between astrocytes and neurons: An overview in Rett syndrome.

Brain research bulletin
2025

Sex-specific perturbations of neuronal development caused by mutations in the autism risk gene DDX3X.

Nature communications
2025

Molecular mechanism of thyroxine transport by monocarboxylate transporters.

Nature communications
2025

Sex-specific loss of mitochondrial membrane integrity in the auditory brainstem of a mouse model of Fragile X Syndrome.

Open biology
2025

[Clinical feature and genetic analysis of a case of X-linked alpha-thalassemia mental retardation syndrome neonate caused by ATRX gene variant and literature review].

Zhonghua yi xue yi chuan xue za zhi = Zhonghua yixue yichuanxue zazhi = Chinese journal of medical genetics
2025

Gene delivery of AGAT and GAMT boosts creatine levels in creatine transporter deficiency patient fibroblasts.

PloS one
2025

Cdkl5 Knockout Mice Recapitulate Sleep Phenotypes of CDKL5 Deficient Disorder.

International journal of molecular sciences
2025

Cardiological Manifestations in Males and Females Affected by NAA10 -Related Disease.

American journal of medical genetics. Part A
2025

Transcriptomic profiling of unmethylated full mutation carriers implicates TET3 in FMR1 CGG repeat expansion methylation dynamics in fragile X syndrome.

Journal of neurodevelopmental disorders
2025

De Novo Splice-Site Variant in DKC1 in a Female With Clinical Features of Hoyeraal-Hreidarsson Syndrome.

American journal of medical genetics. Part A
2025

From pathology to therapy: A comprehensive review of ATRX mutation related molecular functions and disorders.

Mutation research. Reviews in mutation research
2025

Nanopore Long-Read Sequencing as a First-Tier Diagnostic Test to Detect Repeat Expansions in Neurological Disorders.

International journal of molecular sciences
2025

Essential lipids enrich membrane-associated condensates to rescue synaptic morpho-functional deficits in a mouse model of autism.

Cell reports
2025

Synaptic disturbance in neurodevelopmental disorders: Perspectives from fragile X and Rett syndromes.

Brain &amp; development
2025

Multi-site investigation of gut microbiota in CDKL5 deficiency disorder mouse models: Targeting dysbiosis to improve neurological outcomes.

Cell reports
2025

The Ketogenic Diet: An Underrecognized Therapy for Rett Syndrome.

Journal of child neurology
2025

[Lesch-Nyhan syndrome in dizygotic twins].

Medicina
2025

Children With Fragile X Syndrome Display a Switch Towards Fast Fibres in Their Recruitment Strategy During Gait.

Journal of intellectual disability research : JIDR
2025

Middle-Aged Women With Rett Syndrome: Longitudinal Profile From the British Isles Rett Syndrome Survey and Suggestions for Care.

Journal of applied research in intellectual disabilities : JARID
2025

Self-regulating gene therapy ameliorates phenotypes and overcomes gene dosage sensitivity in a mouse model of Rett syndrome.

Science translational medicine
2025

Associations between plasma 24(S)-hydroxycholesterol and neuropsychological profile in fragile X syndrome.

Journal of lipid research
2025

Sudden infant death in a neonate with X-linked intellectual disability type Nascimento because of UBE2A deletion.

Clinical dysmorphology
2025

Sustained Epigenetic Reactivation in Fragile X Neurons with an RNA-Binding Small Molecule.

Genes
2025

Tissue-Specific Effects of the DNA Helicase FANCJ/BRIP1/BACH1 on Repeat Expansion in a Mouse Model of the Fragile X-Related Disorders.

International journal of molecular sciences
2025

Therapeutic Effects of Pharmacological Modulation of Serotonin Brain System in Human Patients and Animal Models of Fragile X Syndrome.

International journal of molecular sciences
2025

Prosodic Differences in Women with the FMR1 Premutation: Subtle Expression of Autism-Related Phenotypes Through Speech.

International journal of molecular sciences
2025

Structural insights into thyroid hormone transporter MCT8.

Nature communications
2025

A Blueprint for Translational Precision Medicine in Autism Spectrum Disorder and Related Neurogenetic Syndromes.

Journal of child and adolescent psychopharmacology
2025

Allan-Herndon-Dudley Syndrome.

Indian journal of pediatrics
2025

Atypical Ophthalmological Manifestations of Claes-Jensen Syndrome Without Intellectual Disability: A Case Report.

Journal of pediatric ophthalmology and strabismus
2025

Rescue of respiratory and cognitive impairments in Rett Syndrome mice using NLX-101, a selective 5-HT1A receptor biased agonist.

Biomedicine &amp; pharmacotherapy = Biomedecine &amp; pharmacotherapie
2025

Emerging autism and Fragile X syndrome treatments.

Trends in pharmacological sciences
2025

PHEMI-Phenylbutyrate in Patients With Lactic Acidosis: A Pilot, Single Arm, Phase I/II, Open-Label Trial.

Clinical therapeutics
2025

How a patient-led advocacy organization supports the road to diagnosis and treatment of creatine transporter deficiency.

Frontiers in neuroscience
2025

Reduced Respiratory Sinus Arrhythmia in Infants with the FMR1 Premutation.

International journal of molecular sciences
2025

Mapping variants in thyroid hormone transporter MCT8 to disease severity by genomic, phenotypic, functional, structural and deep learning integration.

Nature communications
2025

Results from the phase 2/3 DAFFODIL study of trofinetide in girls aged 2-4 years with Rett syndrome.

Med (New York, N.Y.)
2025

Identification of a novel non-coding deletion in Allan-Herndon-Dudley syndrome by long-read HiFi genome sequencing.

BMC medical genomics
2025

Purine Metabolism and Dystonia: Perspectives of a Long-Promised Relationship.

Annals of neurology
2025

Mosaicism in Short Tandem Repeat Disorders: A Clinical Perspective.

Genes
2025

Increased seizure susceptibility in thyroid hormone transporter Mct8/Oatp1c1 knockout mice is associated with altered neurotransmitter systems development.

Progress in neurobiology
2025

Establishment of a human induced pluripotent stem cell line, KMUGMCi009-A, from a patient bearing a missense mutation in the MED12 gene leading X-linked Ohdo syndrome.

Stem cell research
2025

GABA transporter 1 is a promising drug target for CUL4B mutation-associated epilepsy.

Acta pharmacologica Sinica
2025

Non-ionotropic signaling through the NMDA receptor GluN2B carboxy-terminal domain drives dendritic spine plasticity and reverses fragile X phenotypes.

Cell reports
2025

A link between baseline neurofilament light chain and primary substrate accumulation in cerebrospinal fluid, and clinical outcomes in patients with MPS II from a phase 2/3 clinical trial and extension study of intrathecal idursulfase.

Molecular genetics and metabolism
2025

Shared Environment - Different Genes: Speech-Language Development in a Pair of Dizygotic Twins with and Without MECP2 Mutation.

The Journal of genetic psychology
2025

How close are we to a cAMP- and cGMP-theory-based pharmacological therapy for fragile X syndrome?

Cell reports. Medicine
2025

Differential effects of sound repetition rate on auditory cortex development and behavior in fragile X syndrome mouse model.

Experimental neurology
2025

The Clinical and Molecular Spectrum of Patients With X-Linked Intellectual Disability and Novel Variations in Different Genes.

Pediatric neurology
2025

Pain experience of children with Christianson syndrome.

Pain
2025

Impairment in the homeostatic recruitment of layer 5/6 neurons following whisker stimulation in Fmr1 KO mice.

Neurobiology of disease
2025

Renpenning syndrome related to a missense variant in polyglutamine-binding protein 1 (PQBP1): Two pediatric cases from a Chinese family and literature review.

Applied neuropsychology. Child
2025

Clinical and genetic analysis of a female child with duplications at 7p22.3p22.1 and Xp22.31p21.1: A case report.

Medicine
2025

The Fragile X Messenger Ribonucleoprotein 1 Regulates the Morphology and Maturation of Human and Rat Oligodendrocytes.

Glia
2025

NEAT1-mediated regulation of proteostasis and mRNA localization impacts autophagy dysregulation in Rett syndrome.

Nucleic acids research

Associações

Organizações que acompanham esta doença — pra ter apoio e orientação

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Comunidades

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Doenças relacionadas

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Ordenadas pelo número de sintomas em comum.

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. A KCNC1 variant linked to Rett syndrome disrupts ER to Golgi trafficking of Kv3.1 channel.
    Proceedings of the National Academy of Sciences of the United States of America· 2026· PMID 41818146mais citado
  2. Modulating alternative splicing of MECP2 is a potential therapeutic strategy for Rett syndrome.
    Science translational medicine· 2026· PMID 41779872mais citado
  3. Emerging role of KDM5C in X-linked intellectual disability based on human genetic data and zebrafish models.
    Frontiers in molecular neuroscience· 2026· PMID 41743791mais citado
  4. Orofacial clefting in PHF6-related B&#xf6;rjeson-Forssman-Lehmann syndrome.
    BMJ case reports· 2026· PMID 41741118mais citado
  5. A human electrophysiological signature of Fragile X pathophysiology is shared in V1 of Fmr1-/y mice.
    Nature communications· 2026· PMID 41663425mais citado
  6. An Autopsy Case With Fragile X-Associated Tremor/Ataxia Syndrome Presenting Intranuclear Inclusion Bodies Mainly in the Limbic System.
    Neuropathology· 2026· PMID 41840821recente
  7. Dysregulated Cholesterol Clearance via CYP46A1 Contributes to Cerebellar Sterol Imbalance in Mecp2-Null Mice.
    Int J Mol Sci· 2026· PMID 41828569recente
  8. The Management of Evolving Neuropsychiatric Symptoms in a Female with Fragile X Syndrome: A Case Report.
    Psychopharmacol Bull· 2026· PMID 41821984recente
  9. Subtle cellular phenotypes inform pathological and benign genetic mutants in the Iduronate-2 sulfatase gene.
    Hum Mol Genet· 2026· PMID 41818734recente

Bases de dados e fontes oficiais

Identificadores e referências canônicas usadas para montar este verbete.

  1. ORPHA:85279(Orphanet)
  2. OMIM OMIM:300534(OMIM)
  3. MONDO:0010355(MONDO)
  4. GARD:16744(GARD (NIH))
  5. Variantes catalogadas(ClinVar)
  6. Busca completa no PubMed(PubMed)
  7. Q28065613(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

Perturbação do desenvolvimento intelectual sindrômica ligada ao X KDM5C-relacionada
Compêndio · Raras BR

Perturbação do desenvolvimento intelectual sindrômica ligada ao X KDM5C-relacionada

ORPHA:85279 · MONDO:0010355
Prevalência
<1 / 1 000 000
Casos
10 casos conhecidos
Herança
X-linked recessive
CID-10
Q87.8 · Outras síndromes com malformações congênitas especificadas, não classificadas em outra parte
CID-11
Início
Childhood
Prevalência
0.0 (Worldwide)
MedGen
UMLS
C1845243
Wikidata
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