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Síndrome de perturbação do desenvolvimento intelectual ligada ao X-hipoplasia cerebelar
ORPHA:137831CID-10 · Q04.3CID-11 · LD90OMIM 300486DOENÇA RARA

A Deficiência Intelectual Ligada ao Cromossomo X e Hipoplasia Cerebelar, também conhecida como síndrome OPHN1, é uma condição rara que causa problemas no desenvolvimento do cerebelo (a parte do cérebro responsável pelo equilíbrio e coordenação). Ela se manifesta com deficiência intelectual de moderada a grave e outras alterações nessa região do cérebro.

Mantido por Agente Raras·Colaborar como especialista →

Introdução

O que você precisa saber de cara

📋

A Deficiência Intelectual Ligada ao Cromossomo X e Hipoplasia Cerebelar, também conhecida como síndrome OPHN1, é uma condição rara que causa problemas no desenvolvimento do cerebelo (a parte do cérebro responsável pelo equilíbrio e coordenação). Ela se manifesta com deficiência intelectual de moderada a grave e outras alterações nessa região do cérebro.

Pesquisas ativas
1 ensaio
1 total registrados no ClinicalTrials.gov

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
14
pacientes catalogados
Início
Infancy
+ neonatal
🏥
SUS: Cobertura mínimaScore: 35%
Centros em: PA, PR, RS, ES, RJ +5CID-10: Q04.3
🇧🇷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
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Entender a doença

Do básico ao detalhe, leia no seu ritmo

Preparando trilha educativa...

Sinais e sintomas

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

Partes do corpo afetadas

🧠
Neurológico
21 sintomas
😀
Face
9 sintomas
👁️
Olhos
4 sintomas
❤️
Coração
1 sintomas
📏
Crescimento
1 sintomas

+ 26 sintomas em outras categorias

Características mais comuns

100%prev.
Atraso global do desenvolvimento
Muito frequente (99-80%)
100%prev.
Deficiência intelectual
Muito frequente (99-80%)
100%prev.
Vermelhão do lábio superior fino
Frequência: 20/20
80%prev.
Hipoplasia do vermis cerebelar
Frequência: 4/5
80%prev.
Ventriculomegalia
Frequente (79-30%)
60%prev.
Macrocefalia
Frequência: 3/5
62sintomas
Muito frequente (5)
Frequente (21)
Ocasional (17)
Sem dados (19)

Os sintomas variam de pessoa para pessoa. Abaixo estão as 62 características clínicas mais associadas, ordenadas por frequência.

Atraso global do desenvolvimentoGlobal developmental delay
Muito frequente (99-80%)100%
Deficiência intelectualIntellectual disability
Muito frequente (99-80%)100%
Vermelhão do lábio superior finoThin upper lip vermilion
Frequência: 20/20100%
Hipoplasia do vermis cerebelarCerebellar vermis hypoplasia
Frequência: 4/580%
VentriculomegaliaVentriculomegaly
Frequente (79-30%)80%

Linha do tempo da pesquisa

Publicações por ano — veja quando o interesse científico cresceu
Anos de pesquisa1desde 2026
Últimos 10 anos200publicações
Pico202543 papers
Linha do tempo
2026Hoje · 2026🧪 2010Primeiro ensaio clínico📈 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 dominant.

OPHN1Oligophrenin-1Disease-causing germline mutation(s) inAltamente restrito
FUNÇÃO

Stimulates GTP hydrolysis of members of the Rho family. Its action on RHOA activity and signaling is implicated in growth and stabilization of dendritic spines, and therefore in synaptic function. Critical for the stabilization of AMPA receptors at postsynaptic sites. Critical for the regulation of synaptic vesicle endocytosis at presynaptic terminals. Required for the localization of NR1D1 to dendrites, can suppress its repressor activity and protect it from proteasomal degradation (By similari

LOCALIZAÇÃO

PostsynapsePresynapseCell projection, axonCell projection, dendritic spineCell projection, dendriteCytoplasm

VIAS BIOLÓGICAS (10)
RAC3 GTPase cycleRHOJ GTPase cycleRHOG GTPase cycleRHOB GTPase cycleRAC1 GTPase cycle
MECANISMO DE DOENÇA

Intellectual developmental disorder, X-linked, syndromic, Billuart type

A disorder characterized by significantly below average general intellectual functioning associated with impairments in adaptive behavior and manifested during the developmental period. MRXSBL patients manifest intellectual disability associated with cerebellar hypoplasia and distinctive facial dysmorphism.

EXPRESSÃO TECIDUAL(Ubíquo)
Cervix Ectocervix
17.3 TPM
Cervix Endocervix
16.2 TPM
Nervo tibial
15.6 TPM
Brain Nucleus accumbens basal ganglia
10.0 TPM
Próstata
9.6 TPM
OUTRAS DOENÇAS (1)
X-linked intellectual disability-cerebellar hypoplasia syndrome
HGNC:8148UniProt:O60890

Variantes genéticas (ClinVar)

300 variantes patogênicas registradas no ClinVar.

🧬 OPHN1: NM_002547.3(OPHN1):c.826G>T (p.Glu276Ter) ()
🧬 OPHN1: NM_002547.3(OPHN1):c.939del (p.Leu314fs) ()
🧬 OPHN1: NM_002547.3(OPHN1):c.2311del (p.Ile771fs) ()
🧬 OPHN1: NM_002547.3(OPHN1):c.568G>T (p.Glu190Ter) ()
🧬 OPHN1: NM_002547.3(OPHN1):c.2048del (p.Lys683fs) ()
Ver todas no ClinVar

Classificação de variantes (ClinVar)

Distribuição de 101 variantes classificadas pelo ClinVar.

66
35
Patogênica (65.3%)
VUS (34.7%)
VARIANTES MAIS SIGNIFICATIVAS
OPHN1: NM_002547.3(OPHN1):c.939del (p.Leu314fs) [Likely pathogenic]
OPHN1: NM_002547.3(OPHN1):c.2311del (p.Ile771fs) [Likely pathogenic]
OPHN1: NM_002547.3(OPHN1):c.2048del (p.Lys683fs) [Pathogenic]
OPHN1: NM_002547.3(OPHN1):c.1026-2A>G [Pathogenic]
OPHN1: NM_002547.3(OPHN1):c.932_933+3delinsTA [Pathogenic]

Diagnóstico

Os sinais que médicos procuram e os exames que confirmam

Carregando...

Tratamento e manejo

Remédios, cuidados de apoio e o que precisa acompanhar

Pipeline de tratamentos
Pipeline regulatório — de medicamentos já aprovados a drogas em pesquisa exploratória.
·Pré-clínico1
Medicamentos catalogadosEnsaios clínicos· 0 medicamentos · 1 ensaio
Carregando informações de tratamento...

Onde tratar no SUS

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

🇧🇷 Atendimento SUS — Síndrome de perturbação do desenvolvimento intelectual ligada ao X-hipoplasia cerebelar

Centros de Referência SUS

13 centros habilitados pelo SUS para Síndrome de perturbação do desenvolvimento intelectual ligada ao X-hipoplasia cerebelar

Centros para Síndrome de perturbação do desenvolvimento intelectual ligada ao X-hipoplasia cerebelar

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.

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Publicações mais relevantes

Timeline de publicações
0 papers (10 anos)
#1

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

Frontiers in molecular neuroscience2026

Claes-Jensen syndrome is a rare X-linked syndromic neurodevelopmental disorder by pathogenic variants in lysine specific demethylase 5C (KDM5C), a lysine-specific histone demethylase. In this study, clinical evaluations were conducted in affected individuals and carrier females. X-chromosome inactivation (XCI) assays were performed to assess genotype-phenotype correlations. Functional studies evaluated variant effects on RNA transcription, protein expression, and stability. Zebrafish models were used for in vivo validation. RNA sequencing with KEGG and GO analyses identified dysregulated genes and pathways, further confirmed in zebrafish. Two novel KDM5C variants NM_004187.5:c.3019del and NM_004187.5:c.782-2A>T were identified in unrelated families with X-linked ID. Affected males presented with short stature, microcephaly, language delay, and intellectual disability, while carrier females showed milder features including learning difficulties and short stature. Skewed XCI in some carriers suggested a role in phenotypic variability. Both variants impair RNA transcription, protein expression and stability. Zebrafish models recapitulated neurodevelopmental and behavioral abnormalities. Transcriptomic analyses revealed disrupted antiviral and interferon-related signaling, implicating aberrant immune activation. Pharmacologic inhibition of the Toll-like receptor pathway ameliorated mutant phenotypes, highlighting neuroinflammation as a potential therapeutic target for KDM5C-related disorders. These findings expand the mutational spectrum of KDM5C-associated ID and uncover a novel pathogenic mechanism between KDM5C dysfunction, protein instability, and dysregulated inflammatory signaling.

#2

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

BMJ case reports2026 Feb 25

Börjeson-Forssman-Lehmann syndrome (BFLS) is a rare X-linked neurodevelopmental disorder caused by pathogenic variants in the plant homeodomain finger protein 6 (PHF6) gene. Core features include developmental delay, intellectual disability, dysmorphic craniofacial characteristics, obesity, hypogonadism and digital anomalies. Orofacial clefting has not been recognised as part of the canonical phenotype and is rarely reported in association with BFLS. One cohort study listed cleft lip and/or palate as an uncommon feature without individual case details, and a separate report described a female with a nonsense PHF6 variant and clefting of the hard and soft palate. Here, we describe a BFLS female with a de novo missense PHF6 variant who presented with cleft palate. This case adds to the emerging evidence that clefting, though uncommon, may be a recurrent manifestation. It supports the inclusion of PHF6 in the genetic testing of patients presenting with syndromic orofacial clefting when accompanied by neurodevelopmental delay or dysmorphism.

#3

Case Report: A female case of X-linked intellectual disability syndrome type 34 caused by a NONO frameshift variant and literature review.

Frontiers in pediatrics2026

To characterize the clinical and genetic features of a female infant with X-linked intellectual disability syndrome type 34 (MRXS34) caused by a de novo NONO frameshift variant, expanding the understanding of phenotypic mechanisms in females for this X-linked disorder. Retrospective study of the clinical data of a 10-month-old female infant diagnosed with MRXS34 due to NONO gene variation in June 2024, along with a literature review. The proband presented with global developmental delay, relative macrocephaly, generalized hypotonia, cardiac anomalies (patent foramen ovale, moderate tricuspid regurgitation, pulmonary hypertension), etc. Whole-exome sequencing (WES) identified a de novo heterozygous frameshift variant in NONO (NM_007363.5): c.994del (p.Gln322Lysfs*31), confirmed absent in both parents by Sanger sequencing. X-chromosome inactivation (XCI) analysis revealed extreme skewing (99% inactivation of the paternal X-chromosome). Transcriptome sequencing demonstrated significantly reduced NONO expression (TPM = 20.70 vs. controls 52.34 ± 5.81). Literature review encompassing 27 postnatal MRXS34 cases (all male) consistently reported intellectual disability/developmental delay (100%), craniofacial dysmorphism (100%), cardiac defects (91.3%, predominantly left ventricular non-compaction), and corpus callosum abnormalities (85%). We report the first molecularly confirmed female MRXS34 patient. Her full phenotypic manifestation is attributed to the de novo NONO loss-of-function variant combined with extreme non-random XCI. This case critically expands the clinical spectrum of MRXS34, underscores the diagnostic importance of XCI analysis in females with XLID phenotypes, and provides insights into the mechanisms enabling female expression of X-linked recessive disorders.

#4

A Novel MID1 Mutation Identified in a Patient With Craniofacial Anomalies and X-Linked Intellectual Disability.

The Journal of craniofacial surgery2026 Mar 16

Genetic variations in MID1 were initially identified as the cause of X-linked Opitz G/BBB syndrome, which is characterized by hypertelorism, hypospadias, and a high incidence of intellectual disability. However, increasing evidence has shown that MID1 mutations are associated with a broader spectrum of phenotypes, and the genotype-phenotype correlation remains unclear. In this study, the authors report a 4-year-old boy presenting with congenital unilateral nostril hypoplasia, preaxial polydactyly, hemispheric brain asymmetry, and moderate intellectual disability. Whole-exome sequencing identified a novel hemizygous missense variant in MID1 (c.1600G>T; p.Val534Leu), inherited from an unaffected heterozygous mother and also present in the proband's clinically normal sister. Functional analysis suggested that this variant may affect protein-protein interactions and microtubule-associated cellular processes. In addition, expression profiling revealed that MID1 is highly enriched in the central nervous system, supporting its essential role in neurodevelopment. Structural modeling with AlphaFold3 showed preservation of the overall protein fold, whereas DynaMut2 predicted local destabilization and increased hydrophobic packing near the variant site. The variant segregated in the family in an X-linked manner and was classified as possibly damaging by PolyPhen-2. In conclusion, our findings expand the mutational and phenotypic spectrum of MID1-related disorders and suggest a potential pathogenic role of this variant in neurodevelopmental and craniofacial abnormalities.

#5

A novel KDM6A c.2429dup mutation causing kabuki syndrome type 2 identified in a fetus with increased nuchal translucency.

The journal of maternal-fetal &amp; neonatal medicine : the official journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians2026 Dec

Kabuki syndrome (KS) is a rare, multiple congenital anomaly syndrome, characterized by dysmorphic facial features, skeletal anomalies, dermatoglyphic abnormalities, developmental delay, mild-to-moderate intellectual disability, and postnatal growth restriction. KS type 1 (KS1, OMIM 147920) is caused by autosomal dominant pathogenic mutations in KMT2D, and KS type 2 (KS2, OMIM 300867) is caused by X-linked dominant pathogenic mutations in KDM6A. To identify the genetic etiologies in a fetus with increased nuchal translucency (NT) observed by ultrasound at 11+6 weeks of gestation. Chromosomal microarray analysis (CMA) and trio-exome sequencing (trio-ES) were performed on amniotic fluid sample to investigate the potential genetic causes. Sanger sequencing was utilized for validation of the candidate variant. A 28-year-old Chinese pregnant woman was referred for prenatal evaluation due to fetal increased NT (NT = 6.7 mm). CMA yielded a normal result, with no pathogenic or likely pathogenic copy number variants, or mosaicism detected. However, trio-ES identified a novel de novo frameshift mutation (NM_021140.4: c.2429dup (p.Thr811Aspfs*2)) in the KDM6A gene. This variant was classified as pathogenic (PVS1 + PS2_Supporting + PM2_Supporting) based on the American College of Medical Genetics and Genomics guidelines. The fetus was diagnosed with X-linked dominant KS2. The identification of this novel frameshift variant, together with the first report of increased NT as a prenatal feature, enriched both the mutation spectrum and prenatal phenotypic spectrum of KS2. These findings underscore the diagnostic utility of ES for fetuses with increased NT, especially when CMA yields normal results.

Publicações recentes

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2026

A Novel MID1 Mutation Identified in a Patient With Craniofacial Anomalies and X-Linked Intellectual Disability.

The Journal of craniofacial surgery
2026

A novel KDM6A c.2429dup mutation causing kabuki syndrome type 2 identified in a fetus with increased nuchal translucency.

The journal of maternal-fetal &amp; neonatal medicine : the official journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians
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

Case Report: A female case of X-linked intellectual disability syndrome type 34 caused by a NONO frameshift variant and literature review.

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

Autism research : official journal of the International Society for Autism Research
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NONO-Related Syndromic X-Linked Developmental Disability 34: Further Clinical and Molecular Delineation in a Prenatal Cohort.

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

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

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[Clinical and genetic analysis of a child with X-linked Hoyeraal-Hreidarsson syndrome due to variant of DKC1 gene and a literature review].

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Congenital adrenal hypoplasia with neurodevelopmental delay due to contiguous Xp21 deletion: a case series with review of literature.

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Clinical variation in Lowe syndrome: what and how?

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Monogenic defects in Russian children with autism spectrum disorders.

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

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

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A rare variant of USP9X associated with female-restricted X-linked syndromic intellectual disability.

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

American journal of medical genetics. Part A
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Second occurrence of the PAK3-R67C variation and multiscale analysis of the corresponding knock-in mice reveal novel phenotypic features and functional synaptic defects.

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Are NONO variants linked to congenital heart disease? Patient reports and review.

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Identification of a novel de novo NONO variants causing X-linked syndromic intellectual developmental disorder-34 in a fetus.

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

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

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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.

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De Novo Heterozygous ZFX Frameshift Variant in a Female With an X-Linked Neurodevelopmental Disorder.

American journal of medical genetics. Part A
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A novel missense variant at the site of interaction between RLIM and E2 ubiquitin-conjugating enzymes causes Tønne-Kalscheuer syndrome.

BMC pediatrics
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A family case of a rare Xq28 duplication.

Vavilovskii zhurnal genetiki i selektsii
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A Genetically Confirmed Case of ATR-X Syndrome Without Alpha-Thalassemia: First Case Reported From Jordan.

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

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

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

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Dysmorphic syndromes with overgrowth - systematic review.  Part 1 - monogenic syndromes.

Pediatric endocrinology, diabetes, and metabolism
2025

NONO-related X-linked intellectual disability syndrome: Further clinical and molecular delineation.

European journal of medical genetics
2024

Structural variant allelic heterogeneity in MECP2 duplication syndrome provides insight into clinical severity and variability of disease expression.

Genome medicine
2024

The X-linked intellectual disability gene CUL4B is critical for memory and synaptic function.

Acta neuropathologica communications
2024

Endocrine disorders in Rett syndrome: a systematic review of the literature.

Frontiers in endocrinology
2025

RLIM-specific activity reporters define variant pathogenicity in Tonne-Kalscheuer syndrome.

HGG advances
2024

Loss of PHF6 causes spontaneous seizures, enlarged brain ventricles and altered transcription in the cortex of a mouse model of the Börjeson-Forssman-Lehmann intellectual disability syndrome.

PLoS genetics
2025

Exome Sequencing of Consanguineous Pashtun Families With Familial Epilepsy Reveals Causative and Candidate Variants in TSEN54, MOCS2, and OPHN1.

Clinical genetics
2024

Identification of a Novel Frameshift variant of the ATRX gene: a Case Report and Review of the genotype-phenotype relationship.

BMC pediatrics
2024

Inactivation of spermine synthase in mice causes osteopenia due to reduced osteoblast activity.

Journal of bone and mineral research : the official journal of the American Society for Bone and Mineral Research
2024

Similarity of Phenotype in Three Male Patients With the c.320A>G Variant in ALG13: Possible Genotype-Phenotype Correlation.

Molecular genetics &amp; genomic medicine
2024

Christianson syndrome across the lifespan: genetic mutations and longitudinal study in children, adolescents, and adults.

Journal of medical genetics
2024

Autistic-relevant behavioral phenotypes of a mouse model of cyclin-dependent kinase-like 5 deficiency disorder.

Autism research : official journal of the International Society for Autism Research
2025

MED12 Loss-of-Function Variants as a Cause of Congenital Diaphragmatic Hernia in Females With Hardikar Syndrome and Nonspecific Intellectual Disability.

American journal of medical genetics. Part A
2024

Burden of illness in Rett syndrome: initial evaluation of a disorder-specific caregiver survey.

Orphanet journal of rare diseases
2024

Whole exome sequencing reveals a dual diagnosis of BCAP31-related syndrome and glutaric aciduria III.

Molecular genetics and metabolism reports
2024

Exome sequencing confirms the clinical diagnosis of both joubert syndrome and klinefelter syndrome with keratoconus in a han Chinese family.

Frontiers in genetics
2024

SRPK3 Is Essential for Cognitive and Ocular Development in Humans and Zebrafish, Explaining X-Linked Intellectual Disability.

Annals of neurology
2024

Identification of a novel nonsense SLC16A2 gene mutation in an infant with severe neurologic phenotype: A case report.

Medicine
2024

Variants in HCFC1 and MN1 genes causing intellectual disability in two Pakistani families.

BMC medical genomics
2024

An Irak1-Mecp2 tandem duplication mouse model for the study of MECP2 duplication syndrome.

Disease models &amp; mechanisms
2024

Enhanced hippocampal LTP but normal NMDA receptor and AMPA receptor function in a rat model of CDKL5 deficiency disorder.

Molecular autism
2024

Epilepsy phenotypes across the different age-ranges in IQSEC2-related encephalopathy: An Italian multicentre retrospective cohort study.

Seizure
2024

A Long-Term Follow-Up of a Patient with a Novel PORCN Variant and Additional Clinical Features.

Molecular syndromology
2024

Simpson-Golabi-Behmel syndrome.

American journal of medical genetics. Part C, Seminars in medical genetics
2024

Dental findings and intravenous sedation in a patient with Potocki-Lupski syndrome: A case report.

Special care in dentistry : official publication of the American Association of Hospital Dentists, the Academy of Dentistry for the Handicapped, and the American Society for Geriatric Dentistry
2024

Qualitative and quantitative analysis of MED12 c.887G>A causing both missense and splicing variants in X-linked Ohdo syndrome.

American journal of medical genetics. Part A
2024

Case Report: Multiple types of arrhythmias in a late-confirmed Danon disease.

Frontiers in cardiovascular medicine
2024

Case report of fetus with Lowe syndrome: Expanding the prenatal phenotype.

Prenatal diagnosis
2024

Genetic determinants of global developmental delay and intellectual disability in Ukrainian children.

Journal of neurodevelopmental disorders
2024

X-linked intellectual developmental disorder with onset of neonatal heart failure: A case report and literature review.

Molecular genetics and metabolism reports
2024

[Genetic analysis and prenatal diagnosis for a Chinese pedigree affected with co-morbid Ornithine carbamoyl transferase deficiency and MECP2 duplication syndrome].

Zhonghua yi xue yi chuan xue za zhi = Zhonghua yixue yichuanxue zazhi = Chinese journal of medical genetics
2024

PHF6-mediated transcriptional control of NSC via Ephrin receptors is impaired in the intellectual disability syndrome BFLS.

EMBO reports
2024

Type 1 early infantile epileptic encephalopathy: A case report and literature review.

Molecular genetics &amp; genomic medicine
2024

A novel ACTB variant in an atypical case of Baraitser-Winter syndrome with cerebellar hypoplasia and diaphragmatic hernia.

Clinical dysmorphology
2024

Late diagnosis of the X-linked MCT8 deficiency (Allan-Herndon-Dudley syndrome) in a teenage girl with primary ovarian insufficiency.

Journal of pediatric endocrinology &amp; metabolism : JPEM
2024

Variants in ZFX are associated with an X-linked neurodevelopmental disorder with recurrent facial gestalt.

American journal of human genetics
2023

PTCHD1 gene mutation/deletion: the cognitive-behavioral phenotyping of four case reports.

Frontiers in psychiatry
2024

Variants in the WDR44 WD40-repeat domain cause a spectrum of ciliopathy by impairing ciliogenesis initiation.

Nature communications
2024

A novel NONO nonsense variant in a fetus with renal abnormalities.

Prenatal diagnosis
2023

Borjeson-Forssman-Lehmann Syndrome: Clinical Features and Diagnostic Challenges.

Brain &amp; NeuroRehabilitation
2024

A novel missense variant in OTUD5 causes X-linked multiple congenital anomalies-neurodevelopmental syndrome.

Molecular genetics &amp; genomic medicine
2023

Facial and ocular manifestations of male patients affected by the HUWE1-related intellectual developmental disorder.

International journal of molecular epidemiology and genetics
2023

Christianson Syndrome across the Lifespan: An International Longitudinal Study in Children, Adolescents, and Adults.

medRxiv : the preprint server for health sciences
2023

A mouse model of ATRX deficiency with cognitive deficits and autistic traits.

Journal of neurodevelopmental disorders
2024

Genetic and phenotypic findings in 34 novel Spanish patients with DDX3X neurodevelopmental disorder.

Clinical genetics
2024

Further characterisation of ARX-related disorders in females due to inherited or de novo variants.

Journal of medical genetics
2023

Red Blood Cells from Individuals with Lesch-Nyhan Syndrome: Multi-Omics Insights into a Novel S162N Mutation Causing Hypoxanthine-Guanine Phosphoribosyltransferase Deficiency.

Antioxidants (Basel, Switzerland)
2023

Voluntary Running Improves Behavioral and Structural Abnormalities in a Mouse Model of CDKL5 Deficiency Disorder.

Biomolecules
2024

Expanding the phenotype of Brunner syndrome from childhood to adulthood: Description of the second pediatric patient and his mother.

American journal of medical genetics. Part A
2023

Börjeson-Forssman-Lehmann syndrome: delineating the clinical and allelic spectrum in 14 new families.

European journal of human genetics : EJHG
2023

Danon Disease: Entire LAMP2 Gene Deletion with Unusual Clinical Presentation-Case Report and Review of the Literature.

Genes
2023

Case Report: Non-ossifying fibromas with pathologic fractures in a patient with NONO-associated X-linked syndromic intellectual developmental disorder.

Frontiers in genetics
2023

Optic nerve abnormalities in female-restricted Wieacker-Wolff syndrome by a novel variant in the ZC4H2 gene.

Ophthalmic genetics
2023

Parent Perspectives on Complex Needs in Patients With MCT8 Deficiency: An International, Prospective, Registry Study.

The Journal of clinical endocrinology and metabolism
2024

Epigenetic Causes of Overgrowth Syndromes.

The Journal of clinical endocrinology and metabolism
2023

Assessing the performance of European-derived cardiometabolic polygenic risk scores in South-Asians and their interplay with family history.

BMC medical genomics
2023

Rett-like Phenotypes in HNRNPH2-Related Neurodevelopmental Disorder.

Genes
2023

Developmental and epileptic encephalopathy in a young Italian woman with a de novo missense variant in the CLCN4 gene: A case report.

Brain &amp; development
2023

Delayed postnatal brain development and ontogenesis of behavior and cognition in a mouse model of intellectual disability.

Neurobiology of disease
2023

Nance-Horan Syndrome: characterization of dental, clinical and molecular features in three new families.

BMC oral health
2023

Structural Analysis Implicates CASK-Liprin-α2 Interaction in Cerebellar Granular Cell Death in MICPCH Syndrome.

Cells
2023

A new mouse model of ATR-X syndrome carrying a common patient mutation exhibits neurological and morphological defects.

Human molecular genetics
2023

Focal Dermal Hypoplasia: Case Series.

Indian journal of dermatology
2023

A novel de novo variant in CASK causes a severe neurodevelopmental disorder that masks the phenotype of a novel de novo variant in EEF2.

Journal of human genetics
2023

Börjeson-Forssman-Lehmann syndrome: A case report.

Zhong nan da xue xue bao. Yi xue ban = Journal of Central South University. Medical sciences
2023

A comprehensive longitudinal study of magnetic resonance imaging identifies novel features of the Mecp2 deficient mouse brain.

Neurobiology of disease
2024

MED12 variants associated with X-linked recessive partial epilepsy without intellectual disability.

Seizure
2023

Duplication within two regions distal to MECP2: clinical similarity with MECP2 duplication syndrome.

BMC medical genomics
2023

Comparison of evoked potentials across four related developmental encephalopathies.

Journal of neurodevelopmental disorders
2023

Sexually Dimorphic Alterations in the Transcriptome and Behavior with Loss of Histone Demethylase KDM5C.

Cells
2023

Homozygous Missense Variant in the N-Terminal Region of ANK3 Gene Is Associated with Developmental Delay, Seizures, Speech Abnormality, and Aggressive Behavior.

Molecular syndromology
2022

PHIP-associated Chung-Jansen syndrome: Report of 23 new individuals.

Frontiers in cell and developmental biology
2023

Prenatal diagnosis of Simpson-Golabi-Behmel syndrome type 1 with an 814 kb Xq26.2 deletion with the initial presentation of a thick nuchal fold.

Taiwanese journal of obstetrics &amp; gynecology
2023

Impaired polyamine metabolism causes behavioral and neuroanatomical defects in a novel mouse model of Snyder-Robinson Syndrome.

bioRxiv : the preprint server for biology
2023

CUL4B-associated epilepsy: Report of a novel truncating variant promoting drug-resistant seizures and systematic review of the literature.

Seizure
2022

Genetic analysis of neurodevelopmental disorders in children.

Frontiers in child and adolescent psychiatry
2022

TCEAL1 loss-of-function results in an X-linked dominant neurodevelopmental syndrome and drives the neurological disease trait in Xq22.2 deletions.

American journal of human genetics
2022

[Uncommon variants of speech disorder in children: congenital bilateral perisylvian syndrome].

Zhurnal nevrologii i psikhiatrii imeni S.S. Korsakova
2022

Expanding the pre- and postnatal phenotype of WASHC5 and CCDC22 -related Ritscher-Schinzel syndromes.

European journal of medical genetics
2022

Case Report: Chinese female patients with a heterozygous pathogenic RPS6KA3 gene variant c.898C>T and distal 22q11.2 microdeletion.

Frontiers in genetics
2022

A nationwide survey of monocarboxylate transporter 8 deficiency in Japan: Its incidence, clinical course, MRI and laboratory findings.

Brain &amp; development
2022

FGD1 Variant Associated With Aarskog-Scott Syndrome.

Frontiers in pediatrics
2022

[Allan-Herndon-Dudley syndrome: a diagnosis to rule out in any male infant with undiagnosed hypotonia].

Andes pediatrica : revista Chilena de pediatria
2022

A novel UBE2A splice site variant causing intellectual disability type Nascimento.

Clinical case reports
2022

SIMPSON-GOLABI-BEHMEL syndrome type 1: How placental immunohistochemistry can rapidly Predict the diagnosis.

Placenta
2022

Contribution of DNA methylation profiling to the reclassification of a variant of uncertain significance in the KDM5C gene.

European journal of medical genetics
2022

Rare pathogenic variants in WNK3 cause X-linked intellectual disability.

Genetics in medicine : official journal of the American College of Medical Genetics
2022

A novel missense variant in the CASK gene causes intellectual developmental disorder and microcephaly with pontine and cerebellar hypoplasia.

BMC medical genomics
2022

Further characterization of Borjeson-Forssman-Lehmann syndrome in females due to de novo variants in PHF6.

Clinical genetics
2022

Clinical and genetic findings in TRPM1-related congenital stationary night blindness.

Acta ophthalmologica
2024

Brief Report: Evidence of Autism Spectrum Disorder Caused by a Mutation in ATRX Gene: A Case Report.

Journal of autism and developmental disorders
2022

A de novo variant in CASK gene causing intellectual disability and brain hypoplasia: a case report and literature review.

Italian journal of pediatrics
2022

Identification of a Hemizygous Novel Splicing Variant in ATRX Gene: A Case Report and Literature Review.

Frontiers in pediatrics
2022

Phenotypic overlap between cardioacrofacial dysplasia-2 and oral-facial-digital syndrome.

European journal of medical genetics
2022

Expansion of Clinical and Genetic Spectrum of DDX3X Neurodevelopmental Disorder in 23 Chinese Patients.

Frontiers in molecular neuroscience
2022

Novel truncating variants in FGD1 detected in two Danish families with Aarskog-Scott syndrome and myopathic features.

American journal of medical genetics. Part A
2022

Sleep Disorders in Rett Syndrome and Rett-Related Disorders: A Narrative Review.

Frontiers in neurology
2022

Compound genetic etiology in a patient with a syndrome including diabetes, intellectual deficiency and distichiasis.

Orphanet journal of rare diseases
2022

Hedgehog pathway modulation by glypican 3-conjugated heparan sulfate.

Journal of cell science
2022

Identification of a novel microdeletion causative of Nance-Horan syndrome.

Molecular genetics &amp; genomic medicine
2022

X-linked Ohdo syndrome due to a novel MED12 variant detected by Rapid Exome Sequencing.

Clinical dysmorphology
2022

Recurrent missense variant in the nuclear export signal of FMR1 associated with FXS-like phenotype including intellectual disability, ASD, facial abnormalities.

European journal of medical genetics
2022

mRNA analysis revealed a novel pathogenic EIF2S3 variant causing MEHMO syndrome.

European journal of medical genetics
2021

Oral Function and Feeding Management in a Child with Alpha Thalassemia X-Linked Intellectual Disability Syndrome.

Journal of dentistry for children (Chicago, Ill.)
2022

Epilepsy and Sleep in the ATR-X Syndrome.

Neuropediatrics
2022

Disease-associated c-MYC downregulation in human disorders of transcriptional regulation.

Human molecular genetics
2021

Mechanisms of Genome Instability in the Fragile X-Related Disorders.

Genes
2021

Molecular and clinical insights into complex genomic rearrangements related to MECP2 duplication syndrome.

European journal of medical genetics
2022

Eye and ocular adnexa manifestations of MED12-related disorders.

Ophthalmic genetics
2022

A novel MBTPS2 variant associated with BRESHECK syndrome impairs sterol-regulated transcription and the endoplasmic reticulum stress response.

American journal of medical genetics. Part A
2021

MED12 Mutation in Two Families with X-Linked Ohdo Syndrome.

Genes
2022

Novel hemizygous loss-of-function variant in NONO identified in a South African boy.

American journal of medical genetics. Part A
2021

Loss of Christianson Syndrome Na+/H+ Exchanger 6 (NHE6) Causes Abnormal Endosome Maturation and Trafficking Underlying Lysosome Dysfunction in Neurons.

The Journal of neuroscience : the official journal of the Society for Neuroscience
2021

ATR-X syndrome: genetics, clinical spectrum, and management.

Human genetics
2021

Novel CLCN4 variant associated with syndromic X-linked intellectual disability in a Chinese girl: a case report.

BMC pediatrics
2022

A mild clinical and neuropsychological phenotype of Renpenning syndrome: A new case report with a maternally inherited PQBP1 missense mutation.

Applied neuropsychology. Child
2021

Identification of a New Mutation in RSK2, the Gene for Coffin-Lowry Syndrome (CLS), in Two Related Patients with Mild and Atypical Phenotypes.

Brain sciences
2021

The limits of clinical findings in similar phenotypes, from Carpenter to ATRX syndrome using a whole exome sequencing approach: a case review.

Human genomics
2021

Rett syndrome: think outside the (skull) box.

Faculty reviews
2021

Prenatal case of Simpson-Golabi-Behmel syndrome with a de novo 370Kb-sized microdeletion of Xq26.2 compassing partial GPC3 gene and review.

Molecular genetics &amp; genomic medicine
2021

Deletion of RBMX RGG/RG motif in Shashi-XLID syndrome leads to aberrant p53 activation and neuronal differentiation defects.

Cell reports
2021

Clinical and Molecular Aspects of the Neurodevelopmental Disorder Associated with PAK3 Perturbation.

Journal of molecular neuroscience : MN
2021

Clinical Manifestations in a Girl with NAA10-Related Syndrome and Genotype-Phenotype Correlation in Females.

Genes
2021

The int22h1/int22h2-Mediated Xq28 Duplication Syndrome: An Intersection between Neurodevelopment, Immunology, and Cancer.

Genes
2021

Novel Hemizygous Missense Variant of Spermine Synthase (SMS) Gene Causes Snyder-Robinson Syndrome in a Four-Year-Old Boy.

Molecular syndromology
2021

CK syndrome: a rare cause of developmental delay in a young boy.

Clinical dysmorphology
2021

Caregiver-reported characteristics of children diagnosed with pathogenic variants in KDM5C.

American journal of medical genetics. Part A
2021

Measurement of Reverse Triiodothyronine Level and the Triiodothyronine to Reverse Triiodothyronine Ratio in Dried Blood Spot Samples at Birth May Facilitate Early Detection of Monocarboxylate Transporter 8 Deficiency.

Thyroid : official journal of the American Thyroid Association
2021

Inhibition of Elevated Ras-MAPK Signaling Normalizes Enhanced Motor Learning and Excessive Clustered Dendritic Spine Stabilization in the MECP2-Duplication Syndrome Mouse Model of Autism.

eNeuro
2021

Protein-Activated Kinase 3 (PAK3)-Related Intellectual Disability Associated with Combined Immunodeficiency: A Case Report.

The American journal of case reports
2021

Simpson-Golabi-Behmel syndrome: One family, same mutation, different outcome.

American journal of medical genetics. Part A
2021

A novel RLIM/RNF12 variant disrupts protein stability and function to cause severe Tonne-Kalscheuer syndrome.

Scientific reports
2021

MED12-Related (Neuro)Developmental Disorders: A Question of Causality.

Genes
2021

[A case of Börjeson-Forssman-Lehmann syndrome caused by PHF6 gene mutation].

Zhonghua er ke za zhi = Chinese journal of pediatrics
2021

Shukla-Vernon Syndrome: A Second Family with a Novel Variant in the BCORL1 Gene.

Genes
2021

Kabuki Syndrome-Clinical Review with Molecular Aspects.

Genes
2021

Transgenic mice with an R342X mutation in Phf6 display clinical features of Börjeson-Forssman-Lehmann Syndrome.

Human molecular genetics
2021

Ketogenic diet for refractory epilepsy with MEHMO syndrome: Caution for acute necrotizing pancreatitis.

Brain &amp; development
2021

Clinical delineation, sex differences, and genotype-phenotype correlation in pathogenic KDM6A variants causing X-linked Kabuki syndrome type 2.

Genetics in medicine : official journal of the American College of Medical Genetics
2021

Novel unconventional variants expand the allelic spectrum of OPHN1 gene.

American journal of medical genetics. Part A
2021

Lenz microphthalmia syndrome in neurosurgical practice: a case report and review of the literature.

Child's nervous system : ChNS : official journal of the International Society for Pediatric Neurosurgery
2021

X-linked partial corpus callosum agenesis with mild intellectual disability: identification of a novel L1CAM pathogenic variant.

Neurogenetics
2021

Phenotypic spectrum of the RBM10-mediated intellectual disability and congenital malformation syndrome beyond classic TARP syndrome features.

Clinical genetics
2020

The First Korean Case of Baraitser-Winter Cerebro-Fronto-Facial Syndrome with a Novel Mutation in ACTB Diagnosed Via Targeted Gene Panel Sequencing and Literature Review.

Annals of clinical and laboratory science
2021

The eldest case of MICPCH with CASK mutation exhibiting gross motor regression.

Brain &amp; development
2021

De novo variants in MED12 cause X-linked syndromic neurodevelopmental disorders in 18 females.

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

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Referências e fontes

Bases de dados externas citadas neste artigo

Publicações científicas

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

  1. 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
  2. Orofacial clefting in PHF6-related B&#xf6;rjeson-Forssman-Lehmann syndrome.
    BMJ case reports· 2026· PMID 41741118mais citado
  3. Case Report: A female case of X-linked intellectual disability syndrome type 34 caused by a NONO frameshift variant and literature review.
    Frontiers in pediatrics· 2026· PMID 41727761mais citado
  4. A Novel MID1 Mutation Identified in a Patient With Craniofacial Anomalies and X-Linked Intellectual Disability.
    The Journal of craniofacial surgery· 2026· PMID 41842826mais citado
  5. A novel KDM6A c.2429dup mutation causing kabuki syndrome type 2 identified in a fetus with increased nuchal translucency.
    The journal of maternal-fetal &amp; neonatal medicine : the official journal of the European Association of Perinatal Medicine, the Federation of Asia and Oceania Perinatal Societies, the International Society of Perinatal Obstetricians· 2026· PMID 41833451mais citado
  6. Rho Kinase Inhibition Is Essential During In Vitro Neurogenesis and Promotes Phenotypic Rescue of Human Induced Pluripotent Stem Cell-Derived Neurons With Oligophrenin-1 Loss of Function.
    Stem Cells Transl Med· 2016· PMID 27160703recente

Bases de dados e fontes oficiais

Identificadores e referências canônicas usadas para montar este verbete.

  1. ORPHA:137831(Orphanet)
  2. OMIM OMIM:300486(OMIM)
  3. MONDO:0010337(MONDO)
  4. GARD:9947(GARD (NIH))
  5. Variantes catalogadas(ClinVar)
  6. Busca completa no PubMed(PubMed)
  7. Q55373611(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

Síndrome de perturbação do desenvolvimento intelectual ligada ao X-hipoplasia cerebelar
Compêndio · Raras BR

Síndrome de perturbação do desenvolvimento intelectual ligada ao X-hipoplasia cerebelar

ORPHA:137831 · MONDO:0010337
Prevalência
<1 / 1 000 000
Casos
14 casos conhecidos
Herança
X-linked dominant
CID-10
Q04.3 · Outras deformidades por redução do encéfalo
CID-11
Ensaios
1 ativos
Início
Infancy, Neonatal
Prevalência
0.0 (Worldwide)
MedGen
UMLS
C1845366
Wikidata
DiscussaoAtiva

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