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Doença de Lafora
ORPHA:501CID-10 · G40.3CID-11 · 8A61.41DOENÇA RARA

A Doença de Lafora (DL) é uma forma rara, genética, grave e progressiva de epilepsia mioclônica. Ela é caracterizada por espasmos musculares involuntários (mioclonias) e/ou crises epilépticas generalizadas, alucinações visuais (que são um tipo de crise epiléptica que afeta a área da visão no cérebro) e uma piora neurológica gradual e contínua.

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Introdução

O que você precisa saber de cara

📋

A Doença de Lafora (DL) é uma forma rara, genética, grave e progressiva de epilepsia mioclônica. Ela é caracterizada por espasmos musculares involuntários (mioclonias) e/ou crises epilépticas generalizadas, alucinações visuais (que são um tipo de crise epiléptica que afeta a área da visão no cérebro) e uma piora neurológica gradual e contínua.

Pesquisas ativas
1 ensaio
4 total registrados no ClinicalTrials.gov
Publicações científicas
540 artigos
Último publicado: 2026

Escala de raridade

CLASSIFICAÇÃO ORPHANET · BRASIL 2024
1-9 / 1 000 000
Ultra-rara
<1/50k
Muito rara
1/20k
Rara
1/10k
Pouco freq.
1/5k
Incomum
1/2k
Prevalência
0.1
France
Casos conhecidos
300
pacientes catalogados
Início
Adolescent
+ childhood
🏥
SUS: Cobertura mínimaScore: 15%
CID-10: G40.3
🇧🇷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

Preparando trilha educativa...

Sinais e sintomas

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

Partes do corpo afetadas

🧠
Neurológico
23 sintomas
👁️
Olhos
2 sintomas
💪
Músculos
2 sintomas
📏
Crescimento
1 sintomas
❤️
Coração
1 sintomas
🫁
Pulmão
1 sintomas

+ 11 sintomas em outras categorias

Características mais comuns

100%prev.
Corpos de Lafora
90%prev.
Convulsão
Muito frequente (99-80%)
55%prev.
Crise mioclônica generalizada
Frequente (79-30%)
55%prev.
Confusão
Frequente (79-30%)
55%prev.
Depressão
Frequente (79-30%)
55%prev.
Alucinações visuais
Frequente (79-30%)
43sintomas
Muito frequente (2)
Frequente (19)
Ocasional (14)
Sem dados (8)

Os sintomas variam de pessoa para pessoa. Abaixo estão as 43 características clínicas mais associadas, ordenadas por frequência.

Corpos de LaforaLafora bodies
Muito frequente100%
ConvulsãoSeizure
Muito frequente (99-80%)90%
Crise mioclônica generalizadaGeneralized myoclonic seizure
Frequente (79-30%)55%
ConfusãoConfusion
Frequente (79-30%)55%
DepressãoDepression
Frequente (79-30%)55%

Linha do tempo da pesquisa

Publicações por ano — veja quando o interesse científico cresceu
Anos de pesquisa1desde 2026
Total histórico540PubMed
Últimos 10 anos200publicações
Pico202136 papers
Linha do tempo
2026Hoje · 2026🧪 2000Primeiro ensaio clínico📈 2021Ano 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

2 genes identificados com associação a esta condição. Padrão de herança: Autosomal recessive.

EPM2ALaforin, isoform 9Disease-causing germline mutation(s) (loss of function) inTolerante
LOCALIZAÇÃO

Nucleus

VIAS BIOLÓGICAS (2)
Glycogen synthesisMyoclonic epilepsy of Lafora
EXPRESSÃO TECIDUAL(Ubíquo)
Músculo esquelético
21.7 TPM
Cólon sigmoide
17.6 TPM
Esôfago - Muscular
16.6 TPM
Esôfago - Junção
14.9 TPM
Brain Spinal cord cervical c-1
13.9 TPM
OUTRAS DOENÇAS (2)
myoclonic epilepsy of Lafora 1Lafora disease
HGNC:3413UniProt:B3EWF7
NHLRC1E3 ubiquitin-protein ligase NHLRC1Disease-causing germline mutation(s) (loss of function) inTolerante
FUNÇÃO

E3 ubiquitin-protein ligase. Together with the phosphatase EPM2A/laforin, appears to be involved in the clearance of toxic polyglucosan and protein aggregates via multiple pathways. In complex with EPM2A/laforin and HSP70, suppresses the cellular toxicity of misfolded proteins by promoting their degradation through the ubiquitin-proteasome system (UPS). Ubiquitinates the glycogen-targeting protein phosphatase subunits PPP1R3C/PTG and PPP1R3D in a laforin-dependent manner and targets them for pro

LOCALIZAÇÃO

Endoplasmic reticulumNucleus

VIAS BIOLÓGICAS (1)
Glycogen synthesis
MECANISMO DE DOENÇA

Myoclonic epilepsy of Lafora 2

A form of progressive myoclonic epilepsy, a clinically and genetically heterogeneous group of disorders defined by the combination of action and reflex myoclonus, other types of epileptic seizures, and progressive neurodegeneration and neurocognitive impairment. MELF2 is an autosomal recessive, severe form characterized by onset of progressive neurodegeneration between 8 and 18 years of age. Initial features can include headache, myoclonic jerks, generalized seizures, and often visual hallucination. Typically, as seizures increase in frequency, cognitive function declines towards dementia, and affected individuals die usually within 10 years after onset. At the cellular level, MELF2 is characterized by accumulation of starch-like polyglucosans called Lafora bodies (LBs) that are most abundant in organs with the highest glucose metabolism: brain, heart, liver and skeletal muscle.

EXPRESSÃO TECIDUAL(Baixa expressão)
Skin Sun Exposed Lower leg
5.0 TPM
Skin Not Sun Exposed Suprapubic
4.6 TPM
Brain Frontal Cortex BA9
3.9 TPM
Fibroblastos
3.7 TPM
Córtex cerebral
3.4 TPM
OUTRAS DOENÇAS (2)
myoclonic epilepsy of Lafora 2Lafora disease
HGNC:21576UniProt:Q6VVB1

Variantes genéticas (ClinVar)

247 variantes patogênicas registradas no ClinVar.

🧬 NHLRC1: GRCh38/hg38 6p24.1-22.3(chr6:12020008-22846454)x1 ()
🧬 NHLRC1: NM_198586.3(NHLRC1):c.1110dup (p.Phe371fs) ()
🧬 NHLRC1: NM_198586.3(NHLRC1):c.488_542del (p.Gln163fs) ()
🧬 NHLRC1: NM_198586.3(NHLRC1):c.254C>T (p.Pro85Leu) ()
🧬 NHLRC1: NM_198586.3(NHLRC1):c.98T>C (p.Phe33Ser) ()
Ver todas no ClinVar

Classificação de variantes (ClinVar)

Distribuição de 395 variantes classificadas pelo ClinVar.

158
237
Patogênica (40.0%)
VUS (60.0%)
VARIANTES MAIS SIGNIFICATIVAS
NHLRC1: NM_198586.3(NHLRC1):c.1110dup (p.Phe371fs) [Pathogenic]
EPM2A: Single allele [Likely pathogenic]
EPM2A: NM_005670.4(EPM2A):c.222dup (p.Gly75fs) [Likely pathogenic]
EPM2A: NM_005670.4(EPM2A):c.243_246del (p.Asp82fs) [Pathogenic]
EPM2A: NM_005670.4(EPM2A):c.259A>T (p.Lys87Ter) [Pathogenic]

Vias biológicas (Reactome)

2 vias biológicas associadas 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.
2Fase 21
·Pré-clínico3
Medicamentos catalogadosEnsaios clínicos· 0 medicamentos · 4 ensaios
Carregando informações de tratamento...

Onde tratar no SUS

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

🇧🇷 Atendimento SUS — Doença de Lafora

🗺️

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

1 pesquisa recrutando participantes. Converse com seu médico sobre a possibilidade de participar.

Outros ensaios clínicos

4 ensaios clínicos encontrados, 1 ativos.

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

Timeline de publicações
269 papers (10 anos)
#1

Progressive Myoclonic Epilepsies - A Pragmatic Review.

Neurology India2026 Mar 01

Progressive Myoclonus Epilepsy (PME) is a rare and complex group of inherited neurodegenerative disorders characterized by progressively worsening myoclonus, cognitive impairment, tonic-clonic seizures and ataxia. The clinical features and genetic underpinnings of PME are diverse, with approximately 80% of individuals now able to receive a molecular diagnosis. This review outlines the clinical phenotypes, genotypes, and management strategies for PME. Literature search for publications on PME in the preceding 20 years, with emphasis for the past one decade, performed using Medline, JSTOR (journal storage) and PubMed databases. In PME progression of symptoms can vary widely among patients, with some experiencing rapid deterioration while others may have a slower rate of decline. Lafora Disease, characterized by the presence of Lafora bodies in tissues, Unverricht-Lundborg Disease (EPM1), caused by mutations in the CSTB gene, Myoclonic Epilepsy with Ragged-Red Fibers (MERRF), a mitochondrial disorder and Neuronal Ceroid Lipofuscinoses (NCL) make up the major chunk of PME syndromes. In the workup of PME, certain clinical and electroencephalogram (EEG) findings can help differentiate the specific etiologies. Valproic acid, perampanel, phenobarbitone and zonisamide are frequently prescribed as a treatment for various seizure types associated with PME. They are effective for managing both myoclonic and generalized tonic-clonic seizures. However, patients often have a progressive course and may find their myoclonus resistant to treatment. This review explores the clinical features and genetic factors associated with the more prevalent as well as recently described forms of PME for effective clinical evaluation, and suggests management strategies for this challenging condition.

#2

Lafora disease gene therapy: EPM2A but not EPM2B overexpression results in Lafora body formation.

Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics2026 Mar 12

Lafora disease (LD) is a fatal teenage-onset neurodegenerative epilepsy caused by loss-of-function mutations of the genes encoding the laforin phosphatase-malin E3 ubiquitin ligase complex. This complex regulates glycogen structural integrity, through yet unclear mechanisms. Deficiencies of the complex lead few glycogen molecules at a time to misshape, precipitate and cumulate into toxic Lafora bodies (LBs) that drive LD. We developed an intrathecal AAV9-based gene therapy for malin-deficient LD and obtained preclinical efficacy without toxicity. A similar gene therapy for laforin-deficient LD also afforded efficacy, but with a relatively narrow therapeutic window. When overexpressed, laforin paradoxically led to LB generation and did so at a rate higher than in LD. The phenomenon was invariably observed first and dominantly in dorsal root ganglia (DRG) and occurred irrespective of where in the CSF axis the viral vector was delivered. Laforin overexpression-mediated LB formation represents novel biology, which we characterize and show that it occurs independently of laforin and malin's enzymatic activities. The accumulations are time-dependent, which toward clinical development will necessitate longer preclinical and clinical safety monitoring. The effect is strongest with species mismatch (i.e., expression of human laforin in mice), which may require matched-species preclinical development. Finally, the DRG are sentinel, and their pathology and neurophysiology can serve to monitor the iatrogenic toxicity. Our work suggests a clear gene therapy development path for malin-deficient LD, and sets important guardrails for gene therapy for laforin-dependent LD. It also opens a new avenue to understanding the basic biologies of glycogen quality control and LD.

#3

Drug-Resistant Early-Onset Progressive Myoclonic Epilepsy Revealing Lafora Disease: A Case Report.

Cureus2026 Jan

Lafora disease is a rare, autosomal recessive progressive myoclonic epilepsy characterized by drug-resistant seizures, myoclonus, and cognitive decline. We present the case of a 25-year-old woman with an unusually early onset of epilepsy at three years of age, progressive neurological deterioration, and a positive family history of progressive myoclonic epilepsy. The patient developed multiple seizure types, including generalized tonic-clonic seizures, atonic seizures, and stimulus-sensitive myoclonus, accompanied by progressive cognitive impairment. Electroencephalography (EEG) demonstrated generalized epileptiform discharges with frontocentral predominance and photosensitivity. Brain magnetic resonance imaging (MRI) revealed periventricular and parietal white matter changes with mild white matter reduction, likely related to a perinatal hypoxic-ischemic insult. Despite extensive antiseizure medication polytherapy and vagus nerve stimulation, seizures remained refractory. Although the skin biopsy was negative, the muscle biopsy showed ultrastructural changes consistent with Lafora disease. Genetic testing confirmed a pathogenic mutation in the EPM2B gene, establishing the diagnosis. This case highlights the diagnostic challenges of Lafora disease and the importance of prioritizing genetic testing in early-onset, drug-resistant epilepsy when standard diagnostic evaluations are nondiagnostic.

#4

The biochemical dynamics of the glycogen phosphatase laforin directly impact brain metabolism.

The Journal of biological chemistry2026 Feb

Laforin is the only known glycogen phosphatase. Mutations in the laforin gene lead to the fatal childhood dementia and progressive myoclonic epilepsy known as Lafora disease (LD). A hallmark of LD is aberrant, cytoplasmic, glycogen-like aggregates known as Lafora bodies. Surprisingly, recent reports indicate that overexpression of a phosphatase-deficient laforin mutant, with the catalytic cysteine mutated to serine (LCS), prevented the formation of Lafora bodies in a laforin KO mouse model. This finding led to questions regarding the biological relevance of laforin phosphatase activity and its role in LD etiology. In this study, we defined the in vitro and in vivo effects of the LCS mutation. LCS protein lacks catalytic activity but exhibits significantly higher binding to phosphate and long glucan chains compared with WT laforin. In addition, LCS exhibits altered dynamics via hydrogen-deuterium exchange mass spectrometry and interacts more robustly with its binding partners malin and protein targeting to glycogen. We demonstrate that these altered dynamics result in aberrant retention of the LCS protein in the brain of the LCS knock-in mouse model, compared with laforin levels in WT mice. To examine the metabolic consequences of these biophysical changes, we compared the brain metabolomic phenotypes of LCS mice to WT and laforin KO mice. Furthermore, LCS mice display a distinct and significant global perturbation in metabolism. These results indicate a key signaling role for glycogen phosphorylation in glycogen metabolism, revealing an important biological role for laforin catalytic phosphatase activity.

#5

Neuronal hyperexcitability: A key to unraveling hippocampal synaptic dysfunction in Lafora disease.

Epilepsia2026 Mar

Lafora disease (LD) is a rare progressive disorder caused by mutations in the EPM2A or EPM2B genes, characterized by the accumulation of Lafora bodies, drug-resistant epilepsy, and cognitive decline. To investigate the early molecular mechanisms of LD, we studied electrophysiological changes in the dentate gyrus (DG) of the Epm2aR240X knock-in mouse model at various ages. Electrophysiological recordings measured neuronal membrane properties, epileptic-like activity, epileptic thresholds, and synaptic plasticity in Epm2aR240X mice at 1, 3, and 12 months. We also employed Periodic Acid-Schiff (PAS) diastase staining, immunofluorescence, and Western blotting to detect Lafora bodies, amyloid beta deposition, and the expression of glutamate receptor subunits. Epileptic-like activity began at 1 month and intensified with age. Aberrant long-term potentiation (LTP) appeared at 3 months and worsened by 12 months. Notably, cannabidiol treatment reduced excitability and restored LTP in older mice, suggesting its potential therapeutic value. The reversibility of synaptopathy, even at advanced stages, reinforces the importance of early detection of hyperexcitability and the development of effective therapeutic approaches.

Publicações recentes

Ver todas no PubMed

📚 EuropePMC345 artigos no totalmostrando 195

2026

When gene replacement becomes a double-edged sword: Guardrails for precision neurotherapeutics in Lafora disease.

Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics
2026

Lafora disease gene therapy: EPM2A but not EPM2B overexpression results in Lafora body formation.

Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics
2026

Progressive Myoclonic Epilepsies - A Pragmatic Review.

Neurology India
2026

Drug-Resistant Early-Onset Progressive Myoclonic Epilepsy Revealing Lafora Disease: A Case Report.

Cureus
2025

Adeno-Associated Virus-Based Gene Therapy for Lafora Disease in Epm2b-Deficient Mice.

International journal of molecular sciences
2026

The biochemical dynamics of the glycogen phosphatase laforin directly impact brain metabolism.

The Journal of biological chemistry
2026

Neuronal hyperexcitability: A key to unraveling hippocampal synaptic dysfunction in Lafora disease.

Epilepsia
2026

An astrocytic cellular model of Lafora disease to study polyglucosan accumulation and inflammation.

Disease models &amp; mechanisms
2026

New therapeutic strategies for Lafora disease: Evaluation of the safety, efficacy, pharmacokinetics and metabolomic profile of intravenous VAL-1221 treatment.

Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics
2026

Lafora disease (NHLRC1) associated with multiple malformations of cortical development: A clinical vignette.

Epileptic disorders : international epilepsy journal with videotape
2025

Advances in gene therapy for Lafora disease: Intravenous recombinant adeno-associated virus-mediated delivery of EPM2A and EPM2B genes.

Clinical and translational medicine
2025

Neurofilament Light Chain as a Biomarker of Disease Progression in Lafora Disease.

Neurology. Genetics
2025

Axonal polyneuropathy in Lafora disease with a newly identified EPM2A mutation: a case report and review of literature.

Journal of neurology
2025

Navigating the diagnostic challenges of myoclonus in neurodegenerative disorders: video-EEG/polygraphy, clinical vignettes, and narrative analysis.

Frontiers in neurology
2025

The challenge of ultra-rarity: Dual diagnosis of Lafora disease and developmental encephalopathies linked to TRIO and SHANK3 pathogenic variants.

Epilepsia open
2025

Eyelid myoclonia in Lafora disease: Diagnostic and clinical challenges.

Epileptic disorders : international epilepsy journal with videotape
2025

The 9th annual Lafora science symposium: a rare epilepsy community makes progress towards clinical readiness.

Epilepsy &amp; behavior : E&amp;B
2025

Clinical course and management challenges in Lafora disease: a narrative analysis in an Apulian cohort.

Orphanet journal of rare diseases
2025

Sleep and Awake EEG Findings in a Patient With Lafora Disease: From Presymptomatic to Overt Disease Stage.

Neurology. Clinical practice
2025

Generation of a human induced pluripotent stem cell line (CIBIOi007-A) from a Lafora disease patient.

Stem cell research
2025

European Respiratory Society and European Sleep Research Society statement on the treatment of central sleep apnoea with adaptive servo-ventilation.

The European respiratory journal
2025

Improving the transition from pediatric to adult epilepsy care: An expert opinion.

Epilepsy &amp; behavior : E&amp;B
2025

Identification of Plasma Growth Factors and Cytokines as Diagnostic Biomarkers for the Lafora Form of Progressive Myoclonus Epilepsy.

International journal of molecular sciences
2025

Case report of Lafora disease: a rare genetic disorder manifesting as progressive myoclonic epilepsy.

BMC neurology
2025

Empagliflozin Repurposing for Lafora Disease: A Pilot Clinical Trial and Preclinical Investigation of Novel Therapeutic Targets.

Methods and protocols
2025

[Progressive Myoclonus Epilepsy: Diversity of Disorders and Key Points in Clinical Practice].

Brain and nerve = Shinkei kenkyu no shinpo
2025

Lithium exacerbates Lafora body formation in the Epm2a-/- Lafora disease mouse model.

Neuroscience letters
2025

Discovery and Evaluation of Active Site-Directed, Potent, and Selective Sulfophenyl Acetic Amide-Based Inhibitors for the Laforin Phosphatase.

Journal of medicinal chemistry
2025

Identification of a pathogenic NHLRC1 variant in a consanguineous Pakistani family affected with severe and rapidly progressive Lafora disease.

Acta epileptologica
2025

Glial Alterations in the Glutamatergic and GABAergic Signalling Pathways in a Mouse Model of Lafora Disease, a Severe Form of Progressive Myoclonus Epilepsy.

Neuropathology and applied neurobiology
2025

Brain Glycogen-Its Metabolic Role in Neuronal Health and Neurological Disorders-An Extensive Narrative Review.

Metabolites
2025

Focused ultrasound widely broadens AAV-delivered Cas9 distribution and activity.

Gene therapy
2025

Glycogen synthase GYS1 overactivation contributes to glycogen insolubility and malto-oligoglucan-associated neurodegenerative disease.

The EMBO journal
2025

Dapagliflozin ameliorates Lafora disease phenotype in a zebrafish model.

Biomedicine &amp; pharmacotherapy = Biomedecine &amp; pharmacotherapie
2024

Lafora Disease Presenting with Ataxia and DM1: A Case Study.

Acta neurologica Taiwanica
2025

Identification of biallelic intronic EPM2A mutations in a Lafora disease kindred.

Journal of human genetics
2024

VAL-1221 for the treatment of patients with Lafora disease: study protocol for a single-arm, open-label clinical trial.

BMJ open
2024

Glucose metabolism impairment as a hallmark of progressive myoclonus epilepsies: a focus on neuronal ceroid lipofuscinoses.

Frontiers in cellular neuroscience
2024

Glial alterations in the glutamatergic and GABAergic signaling pathways in a mouse model of Lafora disease, a severe form of progressive myoclonus epilepsy.

bioRxiv : the preprint server for biology
2024

Neuromuscular junction dysfunction in Lafora disease.

Disease models &amp; mechanisms
2024

Neurological glycogen storage diseases and emerging therapeutics.

Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics
2024

Glycogen metabolism and structure: A review.

Carbohydrate polymers
2025

Incidence and characterization of polyglucosan bodies in the cerebella of montserrat orioles (Icterus oberi).

Veterinary pathology
2024

Magnetic resonance imaging pattern recognition of metabolic and neurodegenerative encephalopathies in dogs and cats.

Frontiers in veterinary science
2024

Quantitative proteomics unveils known and previously unrecognized alterations in neuropathic nerves.

Journal of neurochemistry
2024

Clinicopathologic Dissociation: Robust Lafora Body Accumulation in Malin KO Mice Without Observable Changes in Home-Cage Behavior.

The Journal of comparative neurology
2024

Proteomic profiling of polyglucosan bodies associated with glycogenin-1 deficiency in skeletal muscle.

Neuropathology and applied neurobiology
2024

Gene therapy for Lafora disease in the Epm2a-/- mouse model.

Molecular therapy : the journal of the American Society of Gene Therapy
2024

Impaired malin expression and interaction with partner proteins in Lafora disease.

The Journal of biological chemistry
2024

1H and 31P magnetic resonance spectroscopy reveals potential pathogenic and biomarker metabolite alterations in Lafora disease.

Brain communications
2024

Amylopectinosis of the fatal epilepsy Lafora disease resists autophagic glycogen catabolism.

EMBO molecular medicine
2024

[Progressive myoclonic epilepsy: a retrospective study of newly-diagnosed adult patients from a single center].

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

Retinal vascular pathology in a mouse model of Lafora progressive myoclonus epilepsy.

Neuroscience research
2024

Myofiber-type-dependent 'boulder' or 'multitudinous pebble' formations across distinct amylopectinoses.

Acta neuropathologica
2024

A novel compound heterozygous EPM2A variant in a Chinese family with Lafora disease.

Acta neurologica Belgica
2024

Progressive Myoclonus Epilepsy: A Scoping Review of Diagnostic, Phenotypic and Therapeutic Advances.

Genes
2024

Effect of intracerebroventricular administration of alglucosidase alfa in two mouse models of Lafora disease: Relevance for clinical practice.

Epilepsy research
2024

Lafora progressive myoclonus epilepsy: Disease mechanism and therapeutic attempts.

Journal of biosciences
2024

Clinical Signs in 166 Beagles with Different Genotypes of Lafora.

Genes
2023

Gene replacement therapy for Lafora disease in the Epm2a -/- mouse model.

bioRxiv : the preprint server for biology
2023

Lafora Disease: A Case Report and Evolving Treatment Advancements.

Brain sciences
2024

Sodium-glucose cotransporter-2 inhibitors: A potential novel treatment for Lafora disease?

Pharmacological research
2024

Beneficial Effect of Fingolimod in a Lafora Disease Mouse Model by Preventing Reactive Astrogliosis-Derived Neuroinflammation and Brain Infiltration of T-lymphocytes.

Molecular neurobiology
2023

Gys1 Antisense Therapy Prevents Disease-Driving Aggregates and Epileptiform Discharges in a Lafora Disease Mouse Model.

Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics
2023

Prognostic value of pathogenic variants in Lafora Disease: systematic review and meta-analysis of patient-level data.

Orphanet journal of rare diseases
2023

The involvement of Purkinje cells in progressive myoclonic epilepsy: Focus on neuronal ceroid lipofuscinosis.

Neurobiology of disease
2024

The multifaceted roles of the brain glycogen.

Journal of neurochemistry
2023

Real-world experience with cannabidiol as add-on treatment in drug-resistant epilepsy.

Seizure
2023

MRI characteristics due to gene mutations in a Chinese pedigree with Lafora disease.

Molecular genetics &amp; genomic medicine
2023

Association of CSF and PET markers of neurodegeneration with electroclinical progression in Lafora disease.

Frontiers in neurology
2023

Retinal Phenotyping of a Murine Model of Lafora Disease.

Genes
2023

Epm2aR240X knock-in mice present earlier cognitive decline and more epileptic activity than Epm2a-/- mice.

Neurobiology of disease
2023

Deciphering the Polyglucosan Accumulation Present in Lafora Disease Using an Astrocytic Cellular Model.

International journal of molecular sciences
2023

Role of Astrocytes in the Pathophysiology of Lafora Disease and Other Glycogen Storage Disorders.

Cells
2023

Neurophysiology of Juvenile and Progressive Myoclonic Epilepsy.

Journal of clinical neurophysiology : official publication of the American Electroencephalographic Society
2023

Age-Related microRNA Overexpression in Lafora Disease Male Mice Provides Links between Neuroinflammation and Oxidative Stress.

International journal of molecular sciences
2023

P-Rex1 is a novel substrate of the E3 ubiquitin ligase Malin associated with Lafora disease.

Neurobiology of disease
2022

Glial Contributions to Lafora Disease: A Systematic Review.

Biomedicines
2023

TNF and IL6/Jak2 signaling pathways are the main contributors of the glia-derived neuroinflammation present in Lafora disease, a fatal form of progressive myoclonus epilepsy.

Neurobiology of disease
2023

Laforin targets malin to glycogen in Lafora progressive myoclonus epilepsy.

Disease models &amp; mechanisms
2022

[Lafora disease with a fatal outcome].

Arkhiv patologii
2023

Early Treatment with Metformin Improves Neurological Outcomes in Lafora Disease.

Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics
2022

Electro-clinical features and management of the late stage of Lafora disease.

Frontiers in neurology
2022

Molecular architecture of the glycogen- committed PP1/PTG holoenzyme.

Nature communications
2022

A Novel Mutation in Lafora Disease and Update on Pathophysiology and Future Treatments.

Child neurology open
2022

Lafora Body Epilepsy: A Challenging Diagnosis.

Journal of the College of Physicians and Surgeons--Pakistan : JCPSP
2022

Lafora disease: a case report.

Journal of medical case reports
2022

[Efficacy of zonisamide in Lafora's disease case and brief review of its use in progressive myoclonic epilepsy].

Revista de neurologia
2022

Tauopathy and Epilepsy Comorbidities and Underlying Mechanisms.

Frontiers in aging neuroscience
2022

A New Finding of Catatonia as Part of Lafora Disease: A Case Report.

Journal of the Academy of Consultation-Liaison Psychiatry
2022

Pharmacological Modulation of Glutamatergic and Neuroinflammatory Pathways in a Lafora Disease Mouse Model.

Molecular neurobiology
2022

Malin restoration as proof of concept for gene therapy for Lafora disease.

Brain communications
2022

Lafora Disease and Alpha-Synucleinopathy in Two Adult Free-Ranging Moose (Alces alces) Presenting with Signs of Blindness and Circling.

Animals : an open access journal from MDPI
2022

Trehalose Treatment in Zebrafish Model of Lafora Disease.

International journal of molecular sciences
2022

Utilization of skin biopsy for diagnosis in a case of Lafora disease.

Journal of cutaneous pathology
2022

FDG-PET findings and alcohol-responsive myoclonus in a patient with Unverricht-Lundborg disease.

Epilepsy &amp; behavior reports
2022

Compound heterozygosity for novel variations of the NHLRC1 Gene in a family with Lafora disease.

Clinical neurology and neurosurgery
2022

Two Diseases-One Preclinical Treatment Targeting Glycogen Synthesis.

Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics
2022

AAV-Mediated Artificial miRNA Reduces Pathogenic Polyglucosan Bodies and Neuroinflammation in Adult Polyglucosan Body and Lafora Disease Mouse Models.

Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics
2022

Novel mutation of EPM2A causes progressive myoclonic epilepsy: a case report.

Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology
2022

Ocular phenotype and electroretinogram abnormalities in Lafora disease and correlation with disease stage.

Journal of neurology
2022

Glycogen synthase downregulation rescues the amylopectinosis of murine RBCK1 deficiency.

Brain : a journal of neurology
2022

The second family affected with a PRDM8-related disease.

Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology
2022

Lack of p62 Impairs Glycogen Aggregation and Exacerbates Pathology in a Mouse Model of Myoclonic Epilepsy of Lafora.

Molecular neurobiology
2021

An empirical pipeline for personalized diagnosis of Lafora disease mutations.

iScience
2021

From corpora amylacea to wasteosomes: History and perspectives.

Ageing research reviews
2021

Genetic cause of epilepsy in a Greek cohort of children and young adults with heterogeneous epilepsy syndromes.

Epilepsy &amp; behavior reports
2021

A retrospective case series of clinical signs in 28 Beagles with Lafora disease.

Journal of veterinary internal medicine
2022

Proteomic characterisation of polyglucosan bodies in skeletal muscle in RBCK1 deficiency.

Neuropathology and applied neurobiology
2021

Natural history of Lafora disease: a prognostic systematic review and individual participant data meta-analysis.

Orphanet journal of rare diseases
2021

Canine Lafora Disease: An Unstable Repeat Expansion Disorder.

Life (Basel, Switzerland)
2022

Lafora disease: Current biology and therapeutic approaches.

Revue neurologique
2021

NHLRC1 homozygous dodecamer expansion in a Newfoundland dog with Lafora disease.

The Journal of small animal practice
2021

Retinal alterations in patients with Lafora disease.

American journal of ophthalmology case reports
2021

EPM2A in-frame deletion slows neurological decline in Lafora Disease.

Seizure
2021

The rare rs769301934 variant in NHLRC1 is a common cause of Lafora disease in Turkey.

Journal of human genetics
2021

Beneficial Effects of Metformin on the Central Nervous System, with a Focus on Epilepsy and Lafora Disease.

International journal of molecular sciences
2021

Brain glycogen serves as a critical glucosamine cache required for protein glycosylation.

Cell metabolism
2021

Gys1 antisense therapy rescues neuropathological bases of murine Lafora disease.

Brain : a journal of neurology
2021

Frontal Hypoperfusion and the Effectiveness of Perampanel in Long-Lived Patient with Lafora Disease.

Case reports in neurology
2021

A novel gene therapy for neurodegenerative Lafora disease via EPM2A-loaded DLinDMA lipoplexes.

Nanomedicine (London, England)
2021

The 6th International Lafora Epilepsy Workshop: Advances in the search for a cure.

Epilepsy &amp; behavior : E&amp;B
2021

TRIM32 and Malin in Neurological and Neuromuscular Rare Diseases.

Cells
2021

Reversing Accumulation of Polyglucosan Bodies by Virally Delivered CRISPR/Cas9 Genome Editing.

Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics
2021

Perampanel Improves Cortical Myoclonus and Disability in Progressive Myoclonic Epilepsies: A Case Series and a Systematic Review of the Literature.

Frontiers in neurology
2021

Generation and characterization of a laforin nanobody inhibitor.

Clinical biochemistry
2021

Targeting Gys1 with AAV-SaCas9 Decreases Pathogenic Polyglucosan Bodies and Neuroinflammation in Adult Polyglucosan Body and Lafora Disease Mouse Models.

Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics
2021

Astrocytic glycogen accumulation drives the pathophysiology of neurodegeneration in Lafora disease.

Brain : a journal of neurology
2021

Italian cohort of Lafora disease: Clinical features, disease evolution, and genotype-phenotype correlations.

Journal of the neurological sciences
2021

Dexamethasone-induced activation of heat shock response ameliorates seizure susceptibility and neuroinflammation in mouse models of Lafora disease.

Experimental neurology
2021

Novel frameshift variant of NHLRC1 gene in compound heterozygosity in an adult Greek patient with Lafora disease.

Seizure
2021

Modulators of Neuroinflammation Have a Beneficial Effect in a Lafora Disease Mouse Model.

Molecular neurobiology
2021

A Case of Lafora Disease Diagnosed by Axillary Skin Biopsy.

Turk patoloji dergisi
2020

Lafora body disease: a case of progressive myoclonic epilepsy.

BMJ case reports
2021

Endocytosis of the glutamate transporter 1 is regulated by laforin and malin: Implications in Lafora disease.

Glia
2021

[A case of the successful treatment of severe myoclonus with Lance-Adams syndrome by add-on perampanel showing long term effects].

Rinsho shinkeigaku = Clinical neurology
2020

Ketogenic diet reduces Lafora bodies in murine Lafora disease.

Neurology. Genetics
2021

Pearls & Oy-sters: When Genetic Generalized Epilepsy Becomes Progressive.

Neurology
2021

An inducible glycogen synthase-1 knockout halts but does not reverse Lafora disease progression in mice.

The Journal of biological chemistry
2020

EEG Patterns Orienting to Lafora Disease Diagnosis-A Case Report in Two Beagles.

Frontiers in veterinary science
2021

Suppression of glycogen synthesis as a treatment for Lafora disease: Establishing the window of opportunity.

Neurobiology of disease
2020

The presenting symptoms of Lafora Disease: An electroclinical and genetic study in five Apulian (Southern Italy) families.

Seizure
2021

Trehalose Ameliorates Seizure Susceptibility in Lafora Disease Mouse Models by Suppressing Neuroinflammation and Endoplasmic Reticulum Stress.

Molecular neurobiology
2020

Structural and Functional Brain Abnormalities in Mouse Models of Lafora Disease.

International journal of molecular sciences
2020

[Lafora disease in a Beagle - diagnosis and therapy].

Tierarztliche Praxis. Ausgabe K, Kleintiere/Heimtiere
2020

Interrater agreement of classification of photoparoxysmal electroencephalographic response.

Epilepsia
2020

Neuroinflammation and progressive myoclonus epilepsies: from basic science to therapeutic opportunities.

Expert reviews in molecular medicine
2021

Ppp1r3d deficiency preferentially inhibits neuronal and cardiac Lafora body formation in a mouse model of the fatal epilepsy Lafora disease.

Journal of neurochemistry
2020

Sensitive quantification of α-glucans in mouse tissues, cell cultures, and human cerebrospinal fluid.

The Journal of biological chemistry
2021

Dendritic spine abnormalities correlate with behavioral and cognitive deficits in mouse models of Lafora disease.

The Journal of comparative neurology
2020

Cannabidiol-Enriched Extract Reduced the Cognitive Impairment but Not the Epileptic Seizures in a Lafora Disease Animal Model.

Cannabis and cannabinoid research
2020

Hepatocellular type II fibrinogen inclusions in a patient with severe COVID-19 and hepatitis.

Journal of hepatology
2020

Polyglucosan body structure in Lafora disease.

Carbohydrate polymers
2020

Animal Models of Metabolic Epilepsy and Epilepsy Associated Metabolic Dysfunction: A Systematic Review.

Pharmaceuticals (Basel, Switzerland)
2020

Brain proton magnetic resonance spectroscopy findings in a Beagle dog with genetically confirmed Lafora disease.

Journal of veterinary internal medicine
2020

A novel compound heterozygous EPM2A mutation in a Chinese boy with Lafora disease.

Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology
2020

Oxidative Stress, a Crossroad Between Rare Diseases and Neurodegeneration.

Antioxidants (Basel, Switzerland)
2020

Early Parkinsonism in a Senegalese girl with Lafora disease.

Epileptic disorders : international epilepsy journal with videotape
2020

Pathologic Confirmation of Lafora Disease.

Pediatric neurology
2020

Lafora Disease: Report of a Rare Entity.

Cureus
2020

Discovery and Development of Small-Molecule Inhibitors of Glycogen Synthase.

Journal of medicinal chemistry
2020

Standing by the Bystander.

JAMA neurology
2020

The 5th International Lafora Epilepsy Workshop: Basic science elucidating therapeutic options and preparing for therapies in the clinic.

Epilepsy &amp; behavior : E&amp;B
2020

Accurate and sensitive quantitation of glucose and glucose phosphates derived from storage carbohydrates by mass spectrometry.

Carbohydrate polymers
2020

FDG-PET assessment and metabolic patterns in Lafora disease.

European journal of nuclear medicine and molecular imaging
2020

Reactive Glia-Derived Neuroinflammation: a Novel Hallmark in Lafora Progressive Myoclonus Epilepsy That Progresses with Age.

Molecular neurobiology
2020

Links between autophagy and disorders of glycogen metabolism - Perspectives on pathogenesis and possible treatments.

Molecular genetics and metabolism
2020

Regulation of the autophagic PI3KC3 complex by laforin/malin E3-ubiquitin ligase, two proteins involved in Lafora disease.

Biochimica et biophysica acta. Molecular cell research
2019

Glycogen in Astrocytes and Neurons: Physiological and Pathological Aspects.

Advances in neurobiology
2019

Brain Glycogen Structure and Its Associated Proteins: Past, Present and Future.

Advances in neurobiology
2019

Major Advances in Brain Glycogen Research: Understanding of the Roles of Glycogen Have Evolved from Emergency Fuel Reserve to Dynamic, Regulated Participant in Diverse Brain Functions.

Advances in neurobiology
2019

Drug-Resistant Juvenile Myoclonic Epilepsy: Misdiagnosis of Progressive Myoclonus Epilepsy.

Frontiers in neurology
2019

Nuclear Glycogenolysis Modulates Histone Acetylation in Human Non-Small Cell Lung Cancers.

Cell metabolism
2019

Antibody-Mediated Enzyme Therapeutics and Applications in Glycogen Storage Diseases.

Trends in molecular medicine
2020

Genetic and phenotypic features of patients with childhood ataxias diagnosed by next-generation sequencing gene panel.

Brain &amp; development
2019

The best evidence for progressive myoclonic epilepsy: A pathway to precision therapy.

Seizure
2019

Super refractory status epilepticus in Lafora disease interrupted by vagus nerve stimulation: A case report.

Brain stimulation
2019

Update on polyglucosan storage diseases.

Virchows Archiv : an international journal of pathology
2019

Targeting Pathogenic Lafora Bodies in Lafora Disease Using an Antibody-Enzyme Fusion.

Cell metabolism
2019

Central Nervous System Delivery and Biodistribution Analysis of an Antibody-Enzyme Fusion for the Treatment of Lafora Disease.

Molecular pharmaceutics
2019

Treatment with metformin in twelve patients with Lafora disease.

Orphanet journal of rare diseases
2019

NHLRC1 dodecamer expansion in a Welsh Corgi (Pembroke) with Lafora disease.

Animal genetics
2019

In vivo glutamate clearance defects in a mouse model of Lafora disease.

Experimental neurology
2019

Skeletal Muscle Glycogen Chain Length Correlates with Insolubility in Mouse Models of Polyglucosan-Associated Neurodegenerative Diseases.

Cell reports
2019

Lafora disease in a Malaysian with a rare mutation in the EPM2A gene.

Seizure
2018

Diabetes Mellitus in a Patient With Lafora Disease: Possible Links With Pancreatic β-Cell Dysfunction and Insulin Resistance.

Frontiers in pediatrics
2019

[Lafora disease: a review of the literature].

Revista de neurologia
2019

Lafora Disease during a Seven-Year Period, Bosnian and Herzegovinian experience.

Iranian journal of child neurology
2019

Genotypes and phenotypes of patients with Lafora disease living in Germany.

Neurological research and practice
2019

NHLRC1 dodecamer repeat expansion demonstrated by whole genome sequencing in a Chihuahua with Lafora disease.

Animal genetics
2018

[Progressive myoclonic epilepsy secondary to Lafora's body disease].

Medicina
2018

Lafora Disease Masquerading as Hepatic Dysfunction.

Cureus
2018

Lafora Disease: A Review of Molecular Mechanisms and Pathology.

Neuropediatrics
2018

Astrocytes and neurons produce distinct types of polyglucosan bodies in Lafora disease.

Glia
2018

Lafora disease - from pathogenesis to treatment strategies.

Nature reviews. Neurology
Ver todos os 345 no EuropePMC

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Doenças relacionadas

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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. Progressive Myoclonic Epilepsies - A Pragmatic Review.
    Neurology India· 2026· PMID 41817056mais citado
  2. Lafora disease gene therapy: EPM2A but not EPM2B overexpression results in Lafora body formation.
    Neurotherapeutics : the journal of the American Society for Experimental NeuroTherapeutics· 2026· PMID 41825228mais citado
  3. Drug-Resistant Early-Onset Progressive Myoclonic Epilepsy Revealing Lafora Disease: A Case Report.
    Cureus· 2026· PMID 41755925mais citado
  4. The biochemical dynamics of the glycogen phosphatase laforin directly impact brain metabolism.
    The Journal of biological chemistry· 2026· PMID 41443417mais citado
  5. Neuronal hyperexcitability: A key to unraveling hippocampal synaptic dysfunction in Lafora disease.
    Epilepsia· 2026· PMID 41408964mais citado
  6. Identification of neuronatin as a SERCA2b regulin-like protein and assessment of its aggregation propensity via coarse grained simulations.
    PLoS One· 2026· PMID 41955213recente
  7. Epm2b(P71A) and Epm2b(D148N) knock-in mouse models of Lafora disease exhibit distinct and pronounced neurological alterations.
    Prog Neurobiol· 2026· PMID 41936809recente
  8. SINEUP-Mediated Overexpression of Endogenous α-Amylase as a Therapeutic Approach in Lafora Disease.
    Genes (Basel)· 2026· PMID 41898855recente
  9. When gene replacement becomes a double-edged sword: Guardrails for precision neurotherapeutics in Lafora disease.
    Neurotherapeutics· 2026· PMID 41831335recente

Bases de dados e fontes oficiais

Identificadores e referências canônicas usadas para montar este verbete.

  1. ORPHA:501(Orphanet)
  2. MONDO:0009697(MONDO)
  3. GARD:8214(GARD (NIH))
  4. Variantes catalogadas(ClinVar)
  5. Busca completa no PubMed(PubMed)
  6. Q163905(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

Doença de Lafora
Compêndio · Raras BR

Doença de Lafora

ORPHA:501 · MONDO:0009697
Prevalência
1-9 / 1 000 000
Casos
300 casos conhecidos
Herança
Autosomal recessive
CID-10
G40.3 · Epilepsia e síndromes epilépticas generalizadas idiopáticas
CID-11
Ensaios
1 ativos
Início
Adolescent, Childhood
Prevalência
0.1 (France)
MedGen
UMLS
C0751783
EuropePMC
Wikidata
Papers 10a
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