Raras
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Síndrome Allan-Herndon-Dudley
ORPHA:59CID-10 · G31.8CID-11 · 5A00.0YOMIM 300523DOENÇA RARA

Síndrome com envolvimento neuromuscular caracterizada por hipotonia infantil, hipoplasia muscular, paraparesia espástica com movimentos distônicos/atetóicos e deficiência cognitiva grave.

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Introdução

O que você precisa saber de cara

📋

Síndrome com envolvimento neuromuscular caracterizada por hipotonia infantil, hipoplasia muscular, paraparesia espástica com movimentos distônicos/atetóicos e deficiência cognitiva grave.

Pesquisas ativas
4 ensaios
11 total registrados no ClinicalTrials.gov
Publicações científicas
211 artigos
Último publicado: 2026 Apr 2

Escala de raridade

CLASSIFICAÇÃO ORPHANET · BRASIL 2024
Unknown
Ultra-rara
<1/50k
Muito rara
1/20k
Rara
1/10k
Pouco freq.
1/5k
Incomum
1/2k
Prevalência
0.0
Worldwide
Casos conhecidos
320
pacientes catalogados
Início
Antenatal
+ infancy, neonatal
🏥
SUS: Cobertura mínimaScore: 15%
CID-10: G31.8
🇧🇷Dados SUS / DATASUS
PROCEDIMENTOS SIGTAP (2)
0202010694
Sequenciamento completo do exoma (WES)genetic_test
0301070040
Atendimento em reabilitação — doenças rarasrehabilitation
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Entender a doença

Do básico ao detalhe, leia no seu ritmo

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Sinais e sintomas

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

Partes do corpo afetadas

🧠
Neurológico
16 sintomas
💪
Músculos
6 sintomas
📏
Crescimento
5 sintomas
🦴
Ossos e articulações
5 sintomas
👁️
Olhos
3 sintomas
😀
Face
3 sintomas

+ 36 sintomas em outras categorias

Características mais comuns

90%prev.
Hipotonia axial
Muito frequente (99-80%)
90%prev.
Deficiência intelectual
Muito frequente (99-80%)
55%prev.
Habilidade atrasada de andar
Frequente (79-30%)
55%prev.
Atrofia cerebral
Frequente (79-30%)
55%prev.
Aumento do T3 livre circulante
Frequente (79-30%)
55%prev.
Mielinização atrasada
Frequente (79-30%)
79sintomas
Muito frequente (2)
Frequente (29)
Ocasional (19)
Muito raro (5)
Sem dados (24)

Os sintomas variam de pessoa para pessoa. Abaixo estão as 79 características clínicas mais associadas, ordenadas por frequência.

Hipotonia axialAxial hypotonia
Muito frequente (99-80%)90%
Deficiência intelectualIntellectual disability
Muito frequente (99-80%)90%
Habilidade atrasada de andarDelayed ability to walk
Frequente (79-30%)55%
Atrofia cerebralBrain atrophy
Frequente (79-30%)55%
Aumento do T3 livre circulanteIncreased circulating free T3
Frequente (79-30%)55%

Linha do tempo da pesquisa

Publicações por ano — veja quando o interesse científico cresceu
Anos de pesquisa1desde 2026
Total histórico211PubMed
Últimos 10 anos172publicações
Pico202531 papers
Linha do tempo
2026Hoje · 2026🧪 2014Primeiro 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 recessive.

SLC16A2Monocarboxylate transporter 8Disease-causing germline mutation(s) inAltamente restrito
FUNÇÃO

Specific thyroid hormone transmembrane transporter, that mediates both uptake and efflux of thyroid hormones across the cell membrane independently of pH or a Na(+) gradient. Major substrates are the iodothyronines T3 and T4 and to a lesser extent rT3 and 3,3-diiodothyronine (3,3'-T2) (PubMed:16887882, PubMed:18337592, PubMed:20628049, PubMed:23550058, PubMed:26426690, PubMed:27805744, PubMed:31436139). Acts as an important mediator of thyroid hormone transport, especially T3, through the blood-

LOCALIZAÇÃO

Cell membraneApical cell membrane

VIAS BIOLÓGICAS (1)
Organic anion transport by SLCO transporters
MECANISMO DE DOENÇA

Monocarboxylate transporter 8 deficiency

Consists of a severe form of X-linked psychomotor retardation combined with abnormal thyroid hormone (TH) levels. Thyroid hormone deficiency can be caused by defects of hormone synthesis and action, but it has also been linked to a defect in cellular hormone transport. Affected patients are males with abnormal relative concentrations of three circulating iodothyronines, as well as severe neurological abnormalities, including global developmental delay, central hypotonia, spastic quadriplegia, dystonic movements, rotary nystagmus, and impaired gaze and hearing. Heterozygous females had a milder thyroid phenotype and no neurological defects.

EXPRESSÃO TECIDUAL(Ubíquo)
Glândula adrenal
50.6 TPM
Ovário
35.1 TPM
Pituitária
33.6 TPM
Útero
31.7 TPM
Fígado
30.5 TPM
OUTRAS DOENÇAS (1)
Allan-Herndon-Dudley syndrome
HGNC:10923UniProt:P36021

Variantes genéticas (ClinVar)

297 variantes patogênicas registradas no ClinVar.

🧬 SLC16A2: NM_006517.5(SLC16A2):c.1026G>C (p.Leu342=) ()
🧬 SLC16A2: NM_006517.5(SLC16A2):c.1170+1G>A ()
🧬 SLC16A2: NM_006517.5(SLC16A2):c.710del (p.Ala237fs) ()
🧬 SLC16A2: NM_006517.5(SLC16A2):c.436G>A (p.Val146Ile) ()
🧬 SLC16A2: NM_006517.5(SLC16A2):c.1026+1G>C ()
Ver todas no ClinVar

Classificação de variantes (ClinVar)

Distribuição de 109 variantes classificadas pelo ClinVar.

76
33
Patogênica (69.7%)
VUS (30.3%)
VARIANTES MAIS SIGNIFICATIVAS
SLC16A2: NM_006517.5(SLC16A2):c.1026G>C (p.Leu342=) [Likely pathogenic]
SLC16A2: NM_006517.5(SLC16A2):c.1170+1G>A [Pathogenic]
SLC16A2: NM_006517.5(SLC16A2):c.710del (p.Ala237fs) [Likely pathogenic]
SLC16A2: NM_006517.5(SLC16A2):c.1170+2T>A [Likely pathogenic]
SLC16A2: NM_006517.5(SLC16A2):c.1384G>T (p.Gly462Trp) [Likely pathogenic]

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

Pipeline de tratamentos
Pipeline regulatório — de medicamentos já aprovados a drogas em pesquisa exploratória.
3Fase 31
2Fase 22
·Pré-clínico6
Medicamentos catalogadosEnsaios clínicos· 0 medicamentos · 9 ensaios
Carregando informações de tratamento...

Onde tratar no SUS

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

🇧🇷 Atendimento SUS — Síndrome Allan-Herndon-Dudley

🗺️

Selecione um estado ou use sua localização para ver resultados.

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

Pesquisa ativa

Ensaios clínicos abertos e novidades científicas recentes

🟢 Recrutando agora

3 pesquisas recrutando participantes. Converse com seu médico sobre a possibilidade de participar.

Outros ensaios clínicos

11 ensaios clínicos encontrados, 4 ativos.

Distribuição por fase
Ver todos no ClinicalTrials.gov
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Publicações mais relevantes

📖Melhor nível de evidência: Revisão
Timeline de publicações
158 papers (10 anos)
#1

A cost-based-plus pricing approach for repurposed tiratricol in the treatment of Allan-Herndon-Dudley syndrome.

Orphanet journal of rare diseases2026 Mar 05
#2

Thyrotoxicosis in MCT8 deficiency.

The Journal of clinical endocrinology and metabolism2026 Mar 17

Monocarboxylate transporter 8 (MCT8) deficiency, also known as Allan-Herndon-Dudley syndrome, is a rare, severely debilitating, and life-limiting genetic disorder caused by variants in the SLC16A2 gene that render the MCT8 thyroid hormone transporter partially or completely dysfunctional. MCT8 is highly expressed throughout the body, including the brain. Its deficiency disrupts thyroid hormone homeostasis and is associated with 2 distinct concomitant clinical presentations: persistent peripheral thyrotoxicosis resulting from elevated serum levels of triiodothyronine and neurodevelopmental impairment arising from low thyroid hormone levels in the brain. The disorder severely impacts quality of life and reduces life expectancy to a median of 35 years due to a range of clinical sequelae, with approximately 30% of affected individuals dying during childhood. Recognition and treatment of thyrotoxicosis are crucial to prevent associated symptoms and long-term sequelae.

#3

Altered Dopamine Metabolism and Response to Treatment with Levodopa/Carbidopa in MCT8 Deficiency.

Movement disorders : official journal of the Movement Disorder Society2026 Feb

Allan-Herndon-Dudley syndrome (AHDS)/monocarboxylate transporter 8 (MCT8) deficiency is a rare X-linked encephalopathy caused by SLC16A2 variants, impairing thyroid hormone (TH) transport into the brain. This leads to early central nervous system (CNS) TH deficiency, affecting brain maturation. Dopaminergic circuit involvement is suggested by both pathophysiology and clinical features, reminiscent of infantile parkinsonism. This study investigates dopamine metabolism and levodopa/carbidopa response in MCT8 patients. We retrospectively and prospectively collected clinical, genetic, and neuroimaging data, performed cerebrospinal fluid (CSF) biogenic amine analyses, and conducted neurological assessments before and after the levodopa trial (10 mg/kg/day). Ten patients exhibited developmental delay, spasticity, and infantile parkinsonism. CSF analysis showed reduced homovanillic acid in 3/10 patients, with 7/10 in the lowest quartile. Levodopa improved parkinsonism and reactivity in 7/10 patients. Our findings confirm dopaminergic involvement in AHDS and show that levodopa/carbidopa effectively treats extrapyramidal symptoms. Further investigations could differentiate presynaptic and postsynaptic defects to optimize dopaminergic therapy. © 2025 The Author(s). Movement Disorders published by Wiley Periodicals LLC on behalf of International Parkinson and Movement Disorder Society.

#4

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

Journal of pediatric endocrinology &amp; metabolism : JPEM2026 Jan 23

To highlight the diagnostic value of the T3/T4 ratio in Allan-Herndon-Dudley syndrome (AHDS) through a case report of a novel SLC16A2 mutation. We report a 36-month-old boy with severe neurodevelopmental delay and axial hypotonia. Initial thyroid function tests at 10 months showed TSH at 4.77 μIU/mL and T3 at 8.9 pmol/L. Brain MRI was normal. At 28 months, genetic analysis identified a novel hemizygous c.1343_1344dup mutation in the SLC16A2 gene. Follow-up thyroid profiling at 36 months revealed the characteristic AHDS pattern: elevated free T3 (10.20 pmol/L), low free T4 (7.80 pmol/L), and borderline high TSH (5.20 μIU/mL), with a T3/T4 ratio of 1.31 pmol/pmol. This case highlights the diagnostic value of the T3/T4 ratio (>0.75 pmol/pmol) as an essential biochemical marker of AHDS in any male infant presenting with unexplained developmental delay and hypotonia. A systematic diagnostic approach including early T3 measurement and T3/T4 ratio calculation should be applied in the initial evaluation of severe developmental delays, even in the presence of normal brain MRI findings, to avoid diagnostic delays in AHDS.

#5

Novel SLC16A2 mutations impair thyroid hormone transport and drive neurodevelopmental deficits in Chinese patients with allan-herndon-dudley syndrome.

Scientific reports2026 Mar 01

Publicações recentes

Ver todas no PubMed

📚 EuropePMC82 artigos no totalmostrando 167

2026

A cost-based-plus pricing approach for repurposed tiratricol in the treatment of Allan-Herndon-Dudley syndrome.

Orphanet journal of rare diseases
2026

Novel SLC16A2 mutations impair thyroid hormone transport and drive neurodevelopmental deficits in Chinese patients with allan-herndon-dudley syndrome.

Scientific reports
2026

Thyrotoxicosis in MCT8 deficiency.

The Journal of clinical endocrinology and metabolism
2025

MCT8 Deficiency in Two Brothers With a Novel Deletion Mutation in SLC16A2.

Case reports in genetics
2025

When Neuromotor Delay Meets Thyroid Dysfunction: A Case for Considering Allan-Herndon-Dudley Syndrome.

Klinische Padiatrie
2025

Thyroid Hormones Act as a Timer for the Postnatal Maturation of Parvalbumin Neurons in Mouse Neocortex.

Thyroid : official journal of the American Thyroid Association
2026

Altered Dopamine Metabolism and Response to Treatment with Levodopa/Carbidopa in MCT8 Deficiency.

Movement disorders : official journal of the Movement Disorder Society
2025

Rationale behind the European Thyroid Association 2024 Guideline to treat the Allan-Herndon-Dudley syndrome with tiratricol?

European thyroid journal
2025

MCT8 Deficiency in Infancy: Opportunities for Early Diagnosis and Screening.

International journal of neonatal screening
2026

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

Journal of pediatric endocrinology &amp; metabolism : JPEM
2025

Is It Time to Expand Newborn Screening for Congenital Hypothyroidism to Other Rare Thyroid Diseases?

International journal of neonatal screening
2025

Structural insights into brain thyroid hormone transport via MCT8 and OATP1C1.

Cell
2025

Inactivation of Thyroid Hormone Transporters Mct8/Oatp1c1 in Mouse Brain Endothelial Cells Causes Region-Specific Alterations in Central Thyroid Hormone Signaling.

Thyroid : official journal of the American Thyroid Association
2025

Maternal thyroid hormone is required to develop the hindbrain vasculature in zebrafish.

Communications biology
2025

Tiratricol: First Approval.

Drugs
2025

MCT8 Deficiency in Females.

The Journal of clinical endocrinology and metabolism
2025

Pathogenic MCT8V235L creates a steric clash that is alleviated by a compensating mutation of MCT8F285A.

European thyroid journal
2025

The phenotypic spectrum of individuals with SLC16A2 variants in MCT8 deficiency.

HGG advances
2025

Molecular mechanism of thyroxine transport by monocarboxylate transporters.

Nature communications
2025

Generation of two human induced pluripotent stem cell lines from Allan-Herndon-Dudley syndrome (AHDS) patients with SLC16A2:G401R or SLC16A2: H192R mutation.

Stem cell research
2025

Novel SLC16A2 Frameshift Mutation as a Cause of Allan-Herndon-Dudley Syndrome and its Implications for Carrier Screening.

Pharmacogenomics and personalized medicine
2025

Structural insights into thyroid hormone transporter MCT8.

Nature communications
2025

Allan-Herndon-Dudley Syndrome.

Indian journal of pediatrics
2025

Cryo-EM structure of the human monocarboxylate transporter 10.

Structure (London, England : 1993)
2025

Patients with Allan-Herndon-Dudley Syndrome (MCT8 Deficiency) Display Symptoms of Parkinsonism in Childhood and Respond to Levodopa/Carbidopa Treatment.

Movement disorders : official journal of the Movement Disorder Society
2025

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

Nature communications
2025

Diagnostic challenges of Allan-Herndon-Dudley syndrome: a case of hypothyroidism and developmental delay.

Annals of pediatric endocrinology &amp; metabolism
2025

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

BMC medical genomics
2025

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

Progress in neurobiology
2025

Sciatic nerve analysis in thyroid hormone transporters Mct8 and Oatp1c1 knockout mice.

European thyroid journal
2024

Clinical and genetic characteristics of patients with monocarboxylate transporter-8 deficiency: a multicentre retrospective study.

European journal of pediatrics
2025

Swallowing Assessment in a Pediatric Case of Allan-Herndon-Dudley Syndrome (MCT8 Deficiency): Advanced Insights into Dysphagia via Flexible Endoscopic Evaluation of Swallowing.

Neuropediatrics
2025

Magnetic Resonance Imaging Techniques for Investigating the MCT8-Deficient Brain in Murine Disease Models.

Methods in molecular biology (Clifton, N.J.)
2024

Toward a treatment for thyroid hormone transporter MCT8 deficiency - achievements and challenges.

European thyroid journal
2024

Combined Levothyroxine and Propylthiouracil Treatment in Children with Monocarboxylate Transporter 8 Deficiency: A Multicenter Case Series of 12 Patients.

Thyroid : official journal of the American Thyroid Association
2024

Unmet patient needs in monocarboxylate transporter 8 (MCT8) deficiency: a review.

Frontiers in pediatrics
2024

Defective thyroid hormone transport to the brain leads to astroglial alterations.

Neurobiology of disease
2024

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

Medicine
2024

A Highly Selective Fluorescent Probe for Monitoring the Thyroid Hormone Transporter Activity in Mammalian Cells.

Chemistry (Weinheim an der Bergstrasse, Germany)
2024

3,3',5-Triiodothyroacetic Acid Transporters.

Thyroid : official journal of the American Thyroid Association
2024

Identification of Human TRIAC Transmembrane Transporters.

Thyroid : official journal of the American Thyroid Association
2025

Phenylbutyrate Treatment in a Boy With MCT8 Deficiency: Improvement of Thyroid Function Tests and Possible Hepatotoxicity.

The Journal of clinical endocrinology and metabolism
2024

Glycerol Phenylbutyrate Treatment of 2 Patients With Monocarboxylate Transporter 8 Deficiency.

The Journal of clinical endocrinology and metabolism
2024

Movement Disorder Perspectives on Monocarboxylate 8 Deficiency: A Case Series of 3 Colombian Patients with Allan-Herndon-Dudley Syndrome.

Movement disorders clinical practice
2024

Insights on the role of thyroid hormone transport in neurosensory organs and implication for the Allan-Herndon-Dudley syndrome.

European thyroid journal
2024

Impaired T3 uptake and action in MCT8-deficient cerebral organoids underlie Allan-Herndon-Dudley syndrome.

JCI insight
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

Diagnosis and Therapy in MCT8 Deficiency: Ongoing Challenges.

Journal of clinical research in pediatric endocrinology
2023

Novel SLC16A2 Gene Mutation: A Rare Case of Delayed Myelination with Dysthyroidism,v Allan-Herndon-Dudley Syndrome.

Neurology India
2024

Impact of Early Intervention with Triiodothyroacetic Acid on Peripheral and Neurodevelopmental Findings in a Boy with MCT8 Deficiency.

Journal of clinical research in pediatric endocrinology
2023

Generation of iPSC lines with SLC16A2:G401R or SLC16A2 knock out.

Stem cell research
2023

Allan-Herndon-Dudley syndrome in Hong Kong: Implication for newborn screening.

Clinica chimica acta; international journal of clinical chemistry
2023

Neurovascular unit disruption and blood-brain barrier leakage in MCT8 deficiency.

Fluids and barriers of the CNS
2023

Proteome Analysis of Thyroid Hormone Transporter Mct8/Oatp1c1-Deficient Mice Reveals Novel Dysregulated Target Molecules Involved in Locomotor Function.

Cells
2023

Repetitive Sleep Starts in Allan-Herndon-Dudley Syndrome.

Pediatric neurology
2023

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

The Journal of clinical endocrinology and metabolism
2023

Corrigendum: In a zebrafish biomedical model of human Allan-Herndon-Dudley syndrome impaired MTH signaling leads to decreased neural cell diversity.

Frontiers in endocrinology
2023

Thyroid hormone transporter Mct8/Oatp1c1 deficiency compromises proper oligodendrocyte maturation in the mouse CNS.

Neurobiology of disease
2023

Simple Evaluation of Thyroid Function Leading to the Diagnosis of Allan-Herndon-Dudley Syndrome, a Rare Neurodevelopmental Disorder.

The Israel Medical Association journal : IMAJ
2023

In a zebrafish biomedical model of human Allan-Herndon-Dudley syndrome impaired MTH signaling leads to decreased neural cell diversity.

Frontiers in endocrinology
2023

Thyroid Disorders and Movement Disorders-A Systematic Review.

Movement disorders clinical practice
2023

Human-Induced Pluripotent Stem Cell-Based Model of the Blood-Brain at 10 Years: A Retrospective on Past and Current Disease Models.

Handbook of experimental pharmacology
2023

Triac Treatment Prevents Neurodevelopmental and Locomotor Impairments in Thyroid Hormone Transporter Mct8/Oatp1c1 Deficient Mice.

International journal of molecular sciences
2023

Maternal Administration of the CNS-Selective Sobetirome Prodrug Sob-AM2 Exerts Thyromimetic Effects in Murine MCT8-Deficient Fetuses.

Thyroid : official journal of the American Thyroid Association
2023

Role and Clinical Significance of Monocarboxylate Transporter 8 (MCT8) During Pregnancy.

Reproductive sciences (Thousand Oaks, Calif.)
2022

Mathematical modeling and simulation of thyroid homeostasis: Implications for the Allan-Herndon-Dudley syndrome.

Frontiers in endocrinology
2023

Intracerebroventricular High Doses of 3,3',5-Triiodothyroacetic Acid at Juvenile Stages Improve Peripheral Hyperthyroidism and Mediate Thyromimetic Effects in Limited Brain Regions in a Mouse Model of Monocarboxylate Transporter 8 Deficiency.

Thyroid : official journal of the American Thyroid Association
2022

TRIAC Treatment Improves Impaired Brain Network Function and White Matter Loss in Thyroid Hormone Transporter Mct8/Oatp1c1 Deficient Mice.

International journal of molecular sciences
2022

Characteristics of Allan-Herndon-Dudley Syndrome in Chinese children: Identification of two novel pathogenic variants of the SLC16A2 gene.

Frontiers in pediatrics
2022

Validation of Mct8/Oatp1c1 dKO mice as a model organism for the Allan-Herndon-Dudley Syndrome.

Molecular metabolism
2022

A CRISPR/Cas9-engineered avatar mouse model of monocarboxylate transporter 8 deficiency displays distinct neurological alterations.

Neurobiology of disease
2022

Thyroid hormone regulators in human cerebral cortex development.

The Journal of endocrinology
2022

Development and validation of an LC-MS/MS methodology for the quantification of thyroid hormones in dko MCT8/OATP1C1 mouse brain.

Journal of pharmaceutical and biomedical analysis
2022

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

Brain &amp; development
2022

Gene therapy targeting the blood-brain barrier improves neurological symptoms in a model of genetic MCT8 deficiency.

Brain : a journal of neurology
2022

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

Andes pediatrica : revista Chilena de pediatria
2022

Allan-Herndon-Dudley syndrome in a female patient and related mechanisms.

Molecular genetics and metabolism reports
2022

A novel frameshift mutation in Allan-Herndon-Dudley syndrome.

International journal of legal medicine
2022

A novel variant in SLC16A2 associated with typical Allan-Herndon-Dudley syndrome: a case report.

BMC pediatrics
2022

Sodium Phenylbutyrate Rescues Thyroid Hormone Transport in Brain Endothelial-Like Cells.

Thyroid : official journal of the American Thyroid Association
2022

AAV9-MCT8 Delivery at Juvenile Stage Ameliorates Neurological and Behavioral Deficits in a Mouse Model of MCT8-Deficiency.

Thyroid : official journal of the American Thyroid Association
2022

Allan-Herndon-Dudley Syndrome: A Novel Pathogenic Variant of the SLC16A2 gene.

Cureus
2022

Ganglioglioma with novel molecular features presenting in a child with Allan-Herndon-Dudley syndrome.

BMJ case reports
2022

Distinct Actions of the Thyroid Hormone Transporters Mct8 and Oatp1c1 in Murine Adult Hippocampal Neurogenesis.

Cells
2021

The Role of Thyroid Function Tests in Diagnosing Allan-herndon-dudley Syndrome Revisited: A Novel Iran-based Mutation.

Basic and clinical neuroscience
2022

Movement disorders in MCT8 deficiency/Allan-Herndon-Dudley Syndrome.

Molecular genetics and metabolism
2022

Long-Term Efficacy of T3 Analogue Triac in Children and Adults With MCT8 Deficiency: A Real-Life Retrospective Cohort Study.

The Journal of clinical endocrinology and metabolism
2021

Thyroid Hormone Transporter Defect: Allan Herndon Dudley Syndrome, Masquerading as Dyskinetic Cerebral Palsy.

Journal of pediatric neurosciences
2021

Monocarboxylate Transporter 8 Deficiency: From Pathophysiological Understanding to Therapy Development.

Frontiers in endocrinology
2022

Design and Characterization of a Fluorescent Reporter Enabling Live-cell Monitoring of MCT8 Expression.

Experimental and clinical endocrinology &amp; diabetes : official journal, German Society of Endocrinology [and] German Diabetes Association
2022

Thyroid Hormone Transporter Deficiency in Mice Impacts Multiple Stages of GABAergic Interneuron Development.

Cerebral cortex (New York, N.Y. : 1991)
2021

First female with Allan-Herndon-Dudley syndrome and partial deletion of X-inactivation center.

Neurogenetics
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

Oligodendrocyte progenitor cell maturation is dependent on dual function of MCT8 in the transport of thyroid hormone across brain barriers and the plasma membrane.

Glia
2021

Monocarboxylate transporter 8 deficiency: update on clinical characteristics and treatment.

Endocrine
2021

Role of thyroid hormones in normal and abnormal central nervous system myelination in humans and rodents.

Frontiers in neuroendocrinology
2021

Absence of Both Thyroid Hormone Transporters MCT8 and OATP1C1 Impairs Neural Stem Cell Fate in the Adult Mouse Subventricular Zone.

Stem cell reports
2020

Antiepileptic rufinamide and QTc interval shortening in a patient with long QT syndrome: case report.

European heart journal. Case reports
2021

Brain Gene Expression in Systemic Hypothyroidism and Mouse Models of MCT8 Deficiency: The Mct8-Oatp1c1-Dio2 Triad.

Thyroid : official journal of the American Thyroid Association
2021

Clinical and Functional Consequences of C-Terminal Variants in MCT8: A Case Series.

The Journal of clinical endocrinology and metabolism
2020

The Protein Translocation Defect of MCT8L291R Is Rescued by Sodium Phenylbutyrate.

European thyroid journal
2021

Thyroid hormone, gene expression, and Central Nervous System: Where we are.

Seminars in cell &amp; developmental biology
2021

Prenatal Treatment of Thyroid Hormone Cell Membrane Transport Defect Caused by MCT8 Gene Mutation.

Thyroid : official journal of the American Thyroid Association
2020

CRISRP/Cas9-mediated knockout of Mct8 reveals a functional involvement of Mct8 in testis and sperm development in a rat.

Scientific reports
2020

Generation of an induced pluripotent stem cell line (SHCDNi003-A) from a one-year-old Chinese Han infant with Allan-Herndon-Dudley syndrome.

Stem cell research
2020

Monocarboxylate Transporter 8 Deficiency: Delayed or Permanent Hypomyelination?

Frontiers in endocrinology
2020

MCT8 Deficiency: The Road to Therapies for a Rare Disease.

Frontiers in neuroscience
2020

Allan-Herndon-Dudley-Syndrome: Considerations about the Brain Phenotype with Implications for Treatment Strategies.

Experimental and clinical endocrinology &amp; diabetes : official journal, German Society of Endocrinology [and] German Diabetes Association
2020

Central Hypothyroidism Impairs Heart Rate Stability and Prevents Thyroid Hormone-Induced Cardiac Hypertrophy and Pyrexia.

Thyroid : official journal of the American Thyroid Association
2020

Low CSF/serum ratio of free T4 is associated with decreased quality of life in mild hypothyroidism - A pilot study.

Journal of clinical &amp; translational endocrinology
2020

Monocarboxylate Transporters (SLC16): Function, Regulation, and Role in Health and Disease.

Pharmacological reviews
2020

Spatiotemporal Changes of Cerebral Monocarboxylate Transporter 8 Expression.

Thyroid : official journal of the American Thyroid Association
2020

Thyroid Hormone Analogues: An Update.

Thyroid : official journal of the American Thyroid Association
2020

Sorting Variants of Unknown Significance Identified by Whole Exome Sequencing: Genetic and Laboratory Investigations of Two Novel MCT8 Variants.

Thyroid : official journal of the American Thyroid Association
2020

Neural Alterations and Hyperactivity of the Hypothalamic-Pituitary-Thyroid Axis in Oatp1c1 Deficiency.

Thyroid : official journal of the American Thyroid Association
2021

Identification of Inhibitors Based on Molecular Docking: Thyroid Hormone Transmembrane Transporter MCT8 as a Target.

Current drug discovery technologies
2020

Thyroid Hormone Transporters.

Endocrine reviews
2020

Tissue-Specific Function of Thyroid Hormone Transporters: New Insights from Mouse Models.

Experimental and clinical endocrinology &amp; diabetes : official journal, German Society of Endocrinology [and] German Diabetes Association
2019

In Vitro Characterization of Human, Mouse, and Zebrafish MCT8 Orthologues.

Thyroid : official journal of the American Thyroid Association
2019

Expanding the phenotypic spectrum of Allan-Herndon-Dudley syndrome in patients with SLC16A2 mutations.

Developmental medicine and child neurology
2019

What human blood-brain barrier models can tell us about BBB function and drug discovery?

Expert opinion on drug discovery
2019

Effectiveness and safety of the tri-iodothyronine analogue Triac in children and adults with MCT8 deficiency: an international, single-arm, open-label, phase 2 trial.

The lancet. Diabetes &amp; endocrinology
2019

Triac in the treatment of Allan-Herndon-Dudley syndrome.

The lancet. Diabetes &amp; endocrinology
2019

Novel mutations in SLC16A2 associated with a less severe phenotype of MCT8 deficiency.

Metabolic brain disease
2019

Laparoscopic Management of Choledochal Cysts Associated with Aberrant Hepatic Ducts.

Journal of laparoendoscopic &amp; advanced surgical techniques. Part A
2019

Oligodendroglial Lineage Cells in Thyroid Hormone-Deprived Conditions.

Stem cells international
2019

Modeling the Biochemical Phenotype of MCT8 Mutations In Vitro: Resolving a Troubling Inconsistency.

Endocrinology
2018

Variable Clinical Characteristics and Molecular Spectrum of Patients with Syndromes of Reduced Sensitivity to Thyroid Hormone: Genetic Defects in the THRB and SLC16A2 Genes.

Hormone research in paediatrics
2018

[A family with Allan-Herndon-Dudley syndrome due to SLC16A2 gene mutation].

Zhonghua er ke za zhi = Chinese journal of pediatrics
2019

Functional analysis of monocarboxylate transporter 8 mutations in Japanese Allan-Herndon-Dudley syndrome patients.

Endocrine journal
2018

Molecular docking studies of human MCT8 protein with soy isoflavones in Allan-Herndon-Dudley syndrome (AHDS).

Journal of pharmaceutical analysis
2018

Mutated Thyroid Hormone Transporter OATP1C1 Associates with Severe Brain Hypometabolism and Juvenile Neurodegeneration.

Thyroid : official journal of the American Thyroid Association
2018

[Clinical and genetic features of five patients with Allan-Herndon-Dudley syndrome].

Zhonghua yi xue yi chuan xue za zhi = Zhonghua yixue yichuanxue zazhi = Chinese journal of medical genetics
2018

Intermittent Esotropia in 4 Patients With Allan-Herndon-Dudley Syndrome.

Journal of child neurology
2018

Thyroid Hormone Transporters MCT8 and OATP1C1 Control Skeletal Muscle Regeneration.

Stem cell reports
2018

Thyroid Hormone Transport and Transporters.

Vitamins and hormones
2017

Transcriptomics reveal an integrative role for maternal thyroid hormones during zebrafish embryogenesis.

Scientific reports
2018

From zebrafish to human: A comparative approach to elucidate the role of the thyroid hormone transporter MCT8 during brain development.

General and comparative endocrinology
2017

Overcoming Monocarboxylate Transporter 8 (MCT8)-Deficiency to Promote Human Oligodendrocyte Differentiation and Myelination.

EBioMedicine
2017

Deficiency of the Thyroid Hormone Transporter Monocarboxylate Transporter 8 in Neural Progenitors Impairs Cellular Processes Crucial for Early Corticogenesis.

The Journal of neuroscience : the official journal of the Society for Neuroscience
2017

Outward-Open Model of Thyroid Hormone Transporter Monocarboxylate Transporter 8 Provides Novel Structural and Functional Insights.

Endocrinology
2018

Novel A178P mutation in SLC16A2 in a patient with Allan-Herndon-Dudley syndrome.

Congenital anomalies
2017

Severe neurological abnormalities in a young boy with impaired thyroid hormone sensitivity due to a novel mutation in the MCT8 gene.

Hormones (Athens, Greece)
2017

Disorder of thyroid hormone transport into the tissues.

Best practice &amp; research. Clinical endocrinology &amp; metabolism
2017

Zebrafish - An emerging model to explore thyroid hormone transporters and psychomotor retardation.

Molecular and cellular endocrinology
2017

The Chemical Chaperone Phenylbutyrate Rescues MCT8 Mutations Associated With Milder Phenotypes in Patients With Allan-Herndon-Dudley Syndrome.

Endocrinology
2017

MCT8 deficiency in Purkinje cells disrupts embryonic chicken cerebellar development.

The Journal of endocrinology
2017

Clinical and Molecular Characteristics of SLC16A2 (MCT8) Mutations in Three Families with the Allan-Herndon-Dudley Syndrome.

Human mutation
2016

Novel SLC16A2 mutations in patients with Allan-Herndon-Dudley syndrome.

Intractable &amp; rare diseases research
2016

Pharmacological treatment and BBB-targeted genetic therapy for MCT8-dependent hypomyelination in zebrafish.

Disease models &amp; mechanisms
2016

Few Amino Acid Exchanges Expand the Substrate Spectrum of Monocarboxylate Transporter 10.

Molecular endocrinology (Baltimore, Md.)
2016

Hypomyelinating leukodystrophies - a molecular insight into the white matter pathology.

Clinical genetics
2016

Three novel mutations of the MCT8 (SLC16A2) gene: individual and temporal variations of endocrinological and radiological features.

Clinical pediatric endocrinology : case reports and clinical investigations : official journal of the Japanese Society for Pediatric Endocrinology
2015

High T3, Low T4 Serum Levels in Mct8 Deficiency Are Not Caused by Increased Hepatic Conversion through Type I Deiodinase.

European thyroid journal
2015

Further Insights into the Allan-Herndon-Dudley Syndrome: Clinical and Functional Characterization of a Novel MCT8 Mutation.

PloS one
2015

Efficient Activation of Pathogenic ΔPhe501 Mutation in Monocarboxylate Transporter 8 by Chemical and Pharmacological Chaperones.

Endocrinology
2015

The Thyroid Hormone Analog DITPA Ameliorates Metabolic Parameters of Male Mice With Mct8 Deficiency.

Endocrinology
2015

[The importance of thyroid hormone transporters].

Nuklearmedizin. Nuclear medicine
2015

Treatment of congenital thyroid dysfunction: Achievements and challenges.

Best practice &amp; research. Clinical endocrinology &amp; metabolism
2015

Thyroid hormone transporters--functions and clinical implications.

Nature reviews. Endocrinology
2016

The Value of Comprehensive Thyroid Function Testing and Family History for Early Diagnosis of MCT8 Deficiency.

Clinical pediatrics
2015

A Nonradioactive Uptake Assay for Rapid Analysis of Thyroid Hormone Transporter Function.

Endocrinology
2015

Redefining the Pediatric Phenotype of X-Linked Monocarboxylate Transporter 8 (MCT8) Deficiency: Implications for Diagnosis and Therapies.

Journal of child neurology
2015

Clinical and endocrine features of two Allan-Herndon-Dudley syndrome patients with monocarboxylate transporter 8 mutations.

Hormone research in paediatrics
2015

Allan-Herndon-Dudley syndrome with unusual profound sensorineural hearing loss.

American journal of medical genetics. Part A
2015

A 7-month-old male with Allan-Herndon-Dudley syndrome and the power of T3.

American journal of medical genetics. Part A
2014

[Exome sequencing revealed Allan-Herndon-Dudley syndrome underlying multiple disabilities].

Duodecim; laaketieteellinen aikakauskirja

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Doenças relacionadas

Doenças com sintomas parecidos — ajudam quem ainda está buscando diagnóstico

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 cost-based-plus pricing approach for repurposed tiratricol in the treatment of Allan-Herndon-Dudley syndrome.
    Orphanet journal of rare diseases· 2026· PMID 41787529mais citado
  2. Thyrotoxicosis in MCT8 deficiency.
    The Journal of clinical endocrinology and metabolism· 2026· PMID 41508830mais citado
  3. Altered Dopamine Metabolism and Response to Treatment with Levodopa/Carbidopa in MCT8 Deficiency.
    Movement disorders : official journal of the Movement Disorder Society· 2026· PMID 41144879mais citado
  4. Novel MCT8 mutation: diagnostic value of T3/T4 ratio.
    Journal of pediatric endocrinology &amp; metabolism : JPEM· 2026· PMID 40980854mais citado
  5. Novel SLC16A2 mutations impair thyroid hormone transport and drive neurodevelopmental deficits in Chinese patients with allan-herndon-dudley syndrome.
    Scientific reports· 2026· PMID 41765929mais citado
  6. Clinical and Biochemical Monitoring of MCT8 Deficiency (Allan-Herndon-Dudley Syndrome) Across the Lifespan: Practical Considerations for Multidisciplinary Care.
    Horm Res Paediatr· 2026· PMID 41926547recente
  7. MCT8 Deficiency in Two Brothers With a Novel Deletion Mutation in SLC16A2.
    Case Rep Genet· 2025· PMID 41438913recente

Bases de dados e fontes oficiais

Identificadores e referências canônicas usadas para montar este verbete.

  1. ORPHA:59(Orphanet)
  2. OMIM OMIM:300523(OMIM)
  3. MONDO:0010354(MONDO)
  4. GARD:5617(GARD (NIH))
  5. Variantes catalogadas(ClinVar)
  6. Busca completa no PubMed(PubMed)
  7. Q4731121(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

Compêndio · Raras BR

Síndrome Allan-Herndon-Dudley

ORPHA:59 · MONDO:0010354
Prevalência
Unknown
Casos
320 casos conhecidos
Herança
X-linked recessive
CID-10
G31.8 · Outras doenças degenerativas especificadas do sistema nervoso
CID-11
Ensaios
4 ativos
Início
Antenatal, Infancy, Neonatal
Prevalência
0.0 (Worldwide)
MedGen
UMLS
C0795889
EuropePMC
Wikidata
Papers 10a
DiscussaoAtiva

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