Raras
Buscar doenças, sintomas, genes...
Epilepsia, mioclonia progressiva
ORPHA:98261CID-11 · 8A61.41PCDT · SUSDOENÇA RARA

Grupo raro de distúrbios caracterizados pelo desenvolvimento de crises epilépticas mioclônicas e tônico-clônicas associadas à degeneração progressiva do sistema nervoso.

Mantido por Agente Raras·Colaborar como especialista →

Introdução

O que você precisa saber de cara

📋

Grupo raro de distúrbios caracterizados pelo desenvolvimento de crises epilépticas mioclônicas e tônico-clônicas associadas à degeneração progressiva do sistema nervoso.

Pesquisas ativas
1 ensaio
7 total registrados no ClinicalTrials.gov
Publicações científicas
488 artigos
Último publicado: 2026 Apr 10
Medicamentos
2 registrados
BRIVARACETAM, ROPINIROLE

Tem tratamento?

2 medicamentos registrados
Ver detalhes, fases e interações →
BRIVARACETAMROPINIROLE
🏥
SUS: Cobertura mínimaScore: 30%
PCDT disponível
Você se identifica com essa condição?
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Sinais e sintomas

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

Partes do corpo afetadas

🧠
Neurológico
65 sintomas
💪
Músculos
9 sintomas
👁️
Olhos
9 sintomas
🫘
Rins
6 sintomas
🦴
Ossos e articulações
5 sintomas
😀
Face
2 sintomas

+ 67 sintomas em outras categorias

Características mais comuns

Agenesia do corpo caloso
Miotonia matinal
Anormalidade da fala ou vocalização
Dificuldade para ficar em pé
Deficiência visual
Perda da fala
175sintomas
Sem dados (175)

Os sintomas variam de pessoa para pessoa. Abaixo estão as 175 características clínicas mais associadas, ordenadas por frequência.

Agenesia do corpo calosoAgenesis of corpus callosum
Miotonia matinalMorning myoclonic jerks
Anormalidade da fala ou vocalizaçãoAbnormality of speech or vocalization
Dificuldade para ficar em péDifficulty standing
Deficiência visualVisual impairment

Linha do tempo da pesquisa

Publicações por ano — veja quando o interesse científico cresceu
Anos de pesquisa1desde 2026
Total histórico488PubMed
Últimos 10 anos200publicações
Pico202134 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

25 genes identificados com associação a esta condição.

EPM2ALaforin, isoform 9Disease-causing germline mutation(s) 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
MT-ND5NADH-ubiquinone oxidoreductase chain 5Candidate gene tested inDesconhecido
FUNÇÃO

Core subunit of the mitochondrial membrane respiratory chain NADH dehydrogenase (Complex I) which catalyzes electron transfer from NADH through the respiratory chain, using ubiquinone as an electron acceptor (PubMed:15250827). Essential for the catalytic activity and assembly of complex I (PubMed:15250827)

LOCALIZAÇÃO

Mitochondrion inner membrane

VIAS BIOLÓGICAS (4)
Respiratory electron transportComplex I biogenesisMitochondrial translation terminationMitochondrial protein degradation
MECANISMO DE DOENÇA

Leber hereditary optic neuropathy

A maternally inherited form of Leber hereditary optic neuropathy, a mitochondrial disease resulting in bilateral painless loss of central vision due to selective degeneration of the retinal ganglion cells and their axons. The disorder shows incomplete penetrance and male predominance. Cardiac conduction defects and neurological defects have also been described in some LHON patients. LHON results from primary mitochondrial DNA mutations affecting the respiratory chain complexes.

OUTRAS DOENÇAS (5)
mitochondrial diseaseMELAS syndromematernally-inherited Leigh syndromeMERRF syndrome
HGNC:7461UniProt:P03915
MT-TPCandidate gene tested inDesconhecido
LOCALIZAÇÃO

VIAS BIOLÓGICAS (3)
G alpha (i) signalling eventsFormyl peptide receptors bind formyl peptides and many other ligandsG alpha (q) signalling events
OUTRAS DOENÇAS (2)
mitochondrial diseaseMERRF syndrome
HGNC:7494
MT-RNR1Mitochondrial-derived peptide MOTS-cCandidate gene tested inDesconhecido
FUNÇÃO

Regulates insulin sensitivity and metabolic homeostasis (PubMed:25738459, PubMed:33468709). Inhibits the folate cycle, thereby reducing de novo purine biosynthesis which leads to the accumulation of the de novo purine synthesis intermediate 5-aminoimidazole-4-carboxamide (AICAR) and the activation of the metabolic regulator 5'-AMP-activated protein kinase (AMPK) (PubMed:25738459). Protects against age-dependent and diet-induced insulin resistance as well as diet-induced obesity (PubMed:25738459)

LOCALIZAÇÃO

SecretedMitochondrionNucleus

VIAS BIOLÓGICAS (3)
G alpha (i) signalling eventsFormyl peptide receptors bind formyl peptides and many other ligandsG alpha (q) signalling events
OUTRAS DOENÇAS (3)
mitochondrial diseaseMERRF syndromemitochondrial non-syndromic sensorineural hearing loss
HGNC:7470UniProt:A0A0C5B5G6
MT-TQCandidate gene tested inDesconhecido
LOCALIZAÇÃO

VIAS BIOLÓGICAS (3)
G alpha (i) signalling eventsFormyl peptide receptors bind formyl peptides and many other ligandsG alpha (q) signalling events
OUTRAS DOENÇAS (2)
MELAS syndromeMERRF syndrome
HGNC:7495
MT-TFCandidate gene tested inDesconhecido
LOCALIZAÇÃO

VIAS BIOLÓGICAS (2)
Post-translational protein phosphorylationRegulation of Insulin-like Growth Factor (IGF) transport and uptake by Insulin-like Growth Factor Binding Proteins (IGFBPs)
OUTRAS DOENÇAS (4)
mitochondrial diseaseMELAS syndromeGitelman-like kidney tubulopathy due to mitochondrial DNA mutationMERRF syndrome
HGNC:7481
MT-TS2Candidate gene tested inDesconhecido
LOCALIZAÇÃO

VIAS BIOLÓGICAS (3)
G alpha (i) signalling eventsFormyl peptide receptors bind formyl peptides and many other ligandsG alpha (q) signalling events
OUTRAS DOENÇAS (4)
mitochondrial diseaseMERRF syndromeUsher syndrome type 3MELAS syndrome
HGNC:7498
MT-TL1Candidate gene tested inDesconhecido
LOCALIZAÇÃO

VIAS BIOLÓGICAS (3)
G alpha (i) signalling eventsFormyl peptide receptors bind formyl peptides and many other ligandsG alpha (q) signalling events
OUTRAS DOENÇAS (7)
mitochondrial diseasematernally-inherited Leigh syndromeMELAS syndromeMERRF syndrome
HGNC:7490
MT-TKCandidate gene tested inDesconhecido
LOCALIZAÇÃO

VIAS BIOLÓGICAS (3)
G alpha (i) signalling eventsFormyl peptide receptors bind formyl peptides and many other ligandsG alpha (q) signalling events
OUTRAS DOENÇAS (4)
mitochondrial diseaseMERRF syndromematernally-inherited cardiomyopathy and hearing lossmaternally-inherited Leigh syndrome
HGNC:7489
MT-THCandidate gene tested inDesconhecido
LOCALIZAÇÃO

VIAS BIOLÓGICAS (1)
Catecholamine biosynthesis
OUTRAS DOENÇAS (4)
mitochondrial diseaseMERRF syndromeMELAS syndromemitochondrial non-syndromic sensorineural hearing loss
HGNC:7487
MT-TS1Candidate gene tested inDesconhecido
LOCALIZAÇÃO

VIAS BIOLÓGICAS (3)
G alpha (i) signalling eventsFormyl peptide receptors bind formyl peptides and many other ligandsG alpha (q) signalling events
OUTRAS DOENÇAS (6)
mitochondrial diseaseMERRF syndromepalmoplantar keratoderma-deafness syndromematernally-inherited progressive external ophthalmoplegia
HGNC:7497
CLN8Protein CLN8Disease-causing germline mutation(s) inTolerante
FUNÇÃO

Could play a role in cell proliferation during neuronal differentiation and in protection against cell death

LOCALIZAÇÃO

Endoplasmic reticulum membraneEndoplasmic reticulum-Golgi intermediate compartment membraneEndoplasmic reticulum

MECANISMO DE DOENÇA

Ceroid lipofuscinosis, neuronal, 8

A form of neuronal ceroid lipofuscinosis with onset in childhood. Neuronal ceroid lipofuscinoses are progressive neurodegenerative, lysosomal storage diseases characterized by intracellular accumulation of autofluorescent liposomal material, and clinically by seizures, dementia, visual loss, and/or cerebral atrophy. The lipopigment patterns observed most often in neuronal ceroid lipofuscinosis type 8 comprise mixed combinations of granular, curvilinear, and fingerprint profiles.

OUTRAS DOENÇAS (2)
neuronal ceroid lipofuscinosis 8neuronal ceroid lipofuscinosis 8 northern epilepsy variant
HGNC:2079UniProt:Q9UBY8
LMNB2Lamin-B2Disease-causing germline mutation(s) inAltamente restrito
FUNÇÃO

Lamins are intermediate filament proteins that assemble into a filamentous meshwork, and which constitute the major components of the nuclear lamina, a fibrous layer on the nucleoplasmic side of the inner nuclear membrane (PubMed:33033404). Lamins provide a framework for the nuclear envelope, bridging the nuclear envelope and chromatin, thereby playing an important role in nuclear assembly, chromatin organization, nuclear membrane and telomere dynamics (PubMed:33033404). The structural integrity

LOCALIZAÇÃO

Nucleus lamina

MECANISMO DE DOENÇA

Partial acquired lipodystrophy

A rare childhood disease characterized by loss of subcutaneous fat from the face and trunk. Fat deposition on the pelvic girdle and lower limbs is normal or excessive. Most frequently, onset between 5 and 15 years of age. Most affected subjects are females and some show no other abnormality, but many develop glomerulonephritis, diabetes mellitus, hyperlipidemia, and complement deficiency. Intellectual disability in some cases. APLD is a sporadic disorder of unknown etiology.

EXPRESSÃO TECIDUAL(Ubíquo)
Linfócitos
104.6 TPM
Fibroblastos
96.1 TPM
Testículo
50.1 TPM
Esôfago - Mucosa
43.3 TPM
Cerebelo
37.1 TPM
OUTRAS DOENÇAS (4)
microcephaly 27, primary, autosomal dominantprogressive myoclonic epilepsy type 9acquired partial lipodystrophylipodystrophy, partial, acquired, susceptibility to
HGNC:6638UniProt:Q03252
CERS1Ceramide synthase 1Disease-causing germline mutation(s) inTolerante
FUNÇÃO

Ceramide synthase that catalyzes the transfer of the acyl chain from acyl-CoA to a sphingoid base, with high selectivity toward stearoyl-CoA (octadecanoyl-CoA; C18:0-CoA) (PubMed:17977534, PubMed:23530041, PubMed:26887952, PubMed:31916624). N-acylates sphinganine and sphingosine bases to form dihydroceramides and ceramides in de novo synthesis and salvage pathways, respectively (PubMed:17977534, PubMed:23530041, PubMed:24782409, PubMed:26887952, PubMed:31916624). Plays a predominant role in skel

LOCALIZAÇÃO

Endoplasmic reticulum membrane

VIAS BIOLÓGICAS (1)
Sphingolipid de novo biosynthesis
MECANISMO DE DOENÇA

Epilepsy, progressive myoclonic 8

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. EPM8 is an autosomal recessive form characterized by myoclonus, generalized tonic-clonic seizures and moderate to severe cognitive impairment.

OUTRAS DOENÇAS (1)
progressive myoclonic epilepsy type 8
HGNC:14253UniProt:P27544
PRDM8PR domain zinc finger protein 8Disease-causing germline mutation(s) inAltamente restrito
FUNÇÃO

Probable histone methyltransferase, preferentially acting on 'Lys-9' of histone H3 (By similarity). Involved in the control of steroidogenesis through transcriptional repression of steroidogenesis marker genes such as CYP17A1 and LHCGR (By similarity). Forms with BHLHE22 a transcriptional repressor complex controlling genes involved in neural development and neuronal differentiation (By similarity). In the retina, it is required for rod bipolar and type 2 OFF-cone bipolar cell survival (By simil

LOCALIZAÇÃO

Nucleus

VIAS BIOLÓGICAS (1)
Regulation of CDH11 gene transcription
MECANISMO DE DOENÇA

Epilepsy, progressive myoclonic 10

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. EPM10 is an autosomal recessive form characterized by progressive dysarthria, myoclonus, ataxia, cognitive decline, psychosis, dementia and spasticity, with onset in childhood. There is variability between patients.

EXPRESSÃO TECIDUAL(Ubíquo)
Próstata
30.3 TPM
Cervix Ectocervix
27.9 TPM
Esôfago - Junção
25.7 TPM
Brain Frontal Cortex BA9
22.6 TPM
Esôfago - Muscular
21.4 TPM
INTERAÇÕES PROTEICAS (2)
OUTRAS DOENÇAS (1)
early-onset Lafora body disease
HGNC:13993UniProt:Q9NQV8
SLC7A6OSProbable RNA polymerase II nuclear localization protein SLC7A6OSDisease-causing germline mutation(s) inTolerante
FUNÇÃO

Directs RNA polymerase II nuclear import

LOCALIZAÇÃO

CytoplasmNucleus

MECANISMO DE DOENÇA

Epilepsy, progressive myoclonic 12

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. EPM12 is an autosomal recessive form characterized by onset of tonic-clonic seizures and/or myoclonus in the second decade of life. Affected individuals develop cerebellar ataxia associated with progressive cerebral and cerebellar atrophy on brain imaging. Most patients lose ambulation and become wheelchair-bound. Additional more variable features include mild cognitive dysfunction or psychiatric manifestations, such as depression or anxiety.

EXPRESSÃO TECIDUAL(Ubíquo)
Linfócitos
17.1 TPM
Fibroblastos
12.7 TPM
Nervo tibial
10.9 TPM
Cervix Endocervix
10.1 TPM
Útero
9.5 TPM
OUTRAS DOENÇAS (1)
epilepsy, progressive myoclonic, 12
HGNC:HGNC:25807UniProt:Q96CW6
CSTBCystatin-BDisease-causing germline mutation(s) inTolerante
FUNÇÃO

This is an intracellular thiol proteinase inhibitor. Tightly binding reversible inhibitor of cathepsins L, H and B

LOCALIZAÇÃO

CytoplasmNucleus

VIAS BIOLÓGICAS (1)
Neutrophil degranulation
MECANISMO DE DOENÇA

Epilepsy, progressive myoclonic 1

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. EPM1 is an autosomal recessive form characterized by severe, stimulus-sensitive myoclonus and tonic-clonic seizures. The onset, occurring between 6 and 13 years of age, is characterized by convulsions. Myoclonus begins 1 to 5 years later. The twitchings occur predominantly in the proximal muscles of the extremities and are bilaterally symmetrical, although asynchronous. At first small, they become late in the clinical course so violent that the victim is thrown to the floor. Mental deterioration and eventually dementia develop.

VIAS REACTOME (1)
EXPRESSÃO TECIDUAL(Ubíquo)
Esôfago - Mucosa
5317.1 TPM
Vagina
1424.9 TPM
Pulmão
150.1 TPM
Skin Not Sun Exposed Suprapubic
137.0 TPM
Glândula salivar
132.2 TPM
OUTRAS DOENÇAS (2)
Unverricht-Lundborg syndromeautosomal recessive hypohidrotic ectodermal dysplasia
HGNC:2482UniProt:P04080
SEMA6BSemaphorin-6BDisease-causing germline mutation(s) inTolerante
FUNÇÃO

Functions as a cell surface repellent for mossy fibers of developing neurons in the hippocampus where it plays a role in axon guidance. May function through the PLXNA4 receptor expressed by mossy cell axons (Microbial infection) Acts as a receptor for P.sordellii toxin TcsL in the in the vascular endothelium

LOCALIZAÇÃO

Cell membrane

MECANISMO DE DOENÇA

Epilepsy, progressive myoclonic 11

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. EPM11 is an autosomal dominant form. Clinical features include normal or mildly delayed early development, developmental regression after seizures onset, inability to walk, severely impaired intellectual development, poor or absent speech, spasticity, ataxia, and intention tremor. Brain imaging shows cerebellar atrophy in some patients.

EXPRESSÃO TECIDUAL(Ubíquo)
Brain Frontal Cortex BA9
91.4 TPM
Córtex cerebral
90.4 TPM
Brain Anterior cingulate cortex BA24
75.3 TPM
Cerebelo
74.9 TPM
Cérebro - Hemisfério cerebelar
72.8 TPM
INTERAÇÕES PROTEICAS (4)
OUTRAS DOENÇAS (2)
epilepsy, progressive myoclonic, 11autosomal dominant non-syndromic intellectual disability
HGNC:10739UniProt:Q9H3T3
KCNC1Voltage-gated potassium channel KCNC1Disease-causing germline mutation(s) inAltamente restrito
FUNÇÃO

Voltage-gated potassium channel that opens in response to the voltage difference across the membrane and through which potassium ions pass in accordance with their electrochemical gradient (PubMed:25401298, PubMed:35840580). The mechanism is time-dependent and inactivation is slow (By similarity). Plays an important role in the rapid repolarization of fast-firing brain neurons (By similarity). Can form functional homotetrameric channels and heterotetrameric channels that contain variable proport

LOCALIZAÇÃO

Cell membraneCell projection, axonPresynaptic cell membrane

VIAS BIOLÓGICAS (1)
Voltage gated Potassium channels
MECANISMO DE DOENÇA

Epilepsy, progressive myoclonic 7

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. EPM7 is an autosomal dominant form characterized by myoclonic epilepsy apparent in the first or second decades of life. Cognitive function may decline in some patients.

EXPRESSÃO TECIDUAL(Tecido-específico)
Cerebelo
92.5 TPM
Cérebro - Hemisfério cerebelar
90.9 TPM
Brain Frontal Cortex BA9
15.4 TPM
Córtex cerebral
13.3 TPM
Brain Anterior cingulate cortex BA24
7.2 TPM
OUTRAS DOENÇAS (1)
progressive myoclonic epilepsy type 7
HGNC:6233UniProt:P48547
SCARB2Lysosome membrane protein 2Disease-causing germline mutation(s) inTolerante
FUNÇÃO

Acts as a lysosomal receptor for glucosylceramidase (GBA1) targeting (Microbial infection) Acts as a receptor for enterovirus 71

LOCALIZAÇÃO

Lysosome membrane

VIAS BIOLÓGICAS (1)
Clathrin-mediated endocytosis
MECANISMO DE DOENÇA

Epilepsy, progressive myoclonic 4, with or without renal failure

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. EPM4 is an autosomal recessive form associated with renal failure in some cases. Cognitive function is preserved.

EXPRESSÃO TECIDUAL(Ubíquo)
Brain Spinal cord cervical c-1
119.7 TPM
Fibroblastos
117.7 TPM
Pulmão
114.5 TPM
Cervix Endocervix
105.3 TPM
Artéria coronária
99.7 TPM
OUTRAS DOENÇAS (3)
action myoclonus-renal failure syndromeGaucher disease type IUnverricht-Lundborg syndrome
HGNC:1665UniProt:Q14108
KCTD7BTB/POZ domain-containing protein KCTD7Disease-causing germline mutation(s) inTolerante
FUNÇÃO

May be involved in the control of excitability of cortical neurons

LOCALIZAÇÃO

Cell membraneCytoplasm, cytosol

VIAS BIOLÓGICAS (2)
Antigen processing: Ubiquitination & Proteasome degradationNeddylation
MECANISMO DE DOENÇA

Epilepsy, progressive myoclonic 3, with or without intracellular inclusions

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. EPM3 is an autosomal recessive, severe, form with early onset. Multifocal myoclonic seizures begin between 16 and 24 months of age after normal initial development. Neurodegeneration and regression occur with seizure onset. Other features include intellectual disability, dysarthria, truncal ataxia, and loss of fine finger movements. EEG shows slow dysrhythmia, multifocal and occasionally generalized epileptiform discharges. In some patients, ultrastructural findings on skin biopsies identify intracellular accumulation of autofluorescent lipopigment storage material, consistent with neuronal ceroid lipofuscinosis.

EXPRESSÃO TECIDUAL(Ubíquo)
Ovário
27.6 TPM
Útero
24.4 TPM
Cervix Ectocervix
23.9 TPM
Brain Spinal cord cervical c-1
23.6 TPM
Testículo
22.7 TPM
OUTRAS DOENÇAS (1)
progressive myoclonic epilepsy type 3
HGNC:21957UniProt:Q96MP8
PRICKLE1Prickle-like protein 1Disease-causing germline mutation(s) inAltamente restrito
FUNÇÃO

Involved in the planar cell polarity pathway that controls convergent extension during gastrulation and neural tube closure. Convergent extension is a complex morphogenetic process during which cells elongate, move mediolaterally, and intercalate between neighboring cells, leading to convergence toward the mediolateral axis and extension along the anteroposterior axis. Necessary for nuclear localization of REST. May serve as nuclear receptor

LOCALIZAÇÃO

Nucleus membraneCytoplasm, cytosol

VIAS BIOLÓGICAS (1)
Asymmetric localization of PCP proteins
MECANISMO DE DOENÇA

Epilepsy, progressive myoclonic 1B

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. EPM1B is an autosomal recessive form characterized by myoclonus that progressed in severity over time, tonic-clonic seizures and ataxia.

EXPRESSÃO TECIDUAL(Ubíquo)
Nervo tibial
15.3 TPM
Cervix Endocervix
10.4 TPM
Útero
8.3 TPM
Cervix Ectocervix
8.0 TPM
Baço
6.5 TPM
OUTRAS DOENÇAS (2)
epilepsy, progressive myoclonic, 1BUnverricht-Lundborg syndrome
HGNC:17019UniProt:Q96MT3
GOSR2Golgi SNAP receptor complex member 2Disease-causing germline mutation(s) inTolerante
FUNÇÃO

Involved in transport of proteins from the cis/medial-Golgi to the trans-Golgi network

LOCALIZAÇÃO

Golgi apparatus, cis-Golgi network membraneGolgi apparatus membraneEndoplasmic reticulum membrane

VIAS BIOLÓGICAS (1)
COPII-mediated vesicle transport
MECANISMO DE DOENÇA

Epilepsy, progressive myoclonic 6

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. EPM6 is an autosomal recessive form characterized by onset of ataxia in the first years of life, followed by action myoclonus and seizures later in childhood, and loss of independent ambulation in the second decade. Cognition is not usually affected, although mild memory difficulties may occur in the third decade.

EXPRESSÃO TECIDUAL(Ubíquo)
Testículo
21.6 TPM
Pituitária
20.2 TPM
Fibroblastos
16.9 TPM
Cervix Endocervix
16.1 TPM
Linfócitos
15.8 TPM
OUTRAS DOENÇAS (2)
progressive myoclonic epilepsy type 6muscular dystrophy, congenital, with or without seizures
HGNC:4431UniProt:O14653
SERPINI1NeuroserpinDisease-causing germline mutation(s) inTolerante
FUNÇÃO

Serine protease inhibitor that inhibits plasminogen activators and plasmin but not thrombin (PubMed:11880376, PubMed:19265707, PubMed:19285087, PubMed:26329378, PubMed:9442076). May be involved in the formation or reorganization of synaptic connections as well as for synaptic plasticity in the adult nervous system. May protect neurons from cell damage by tissue-type plasminogen activator (Probable)

LOCALIZAÇÃO

SecretedCytoplasmic vesicle, secretory vesicle lumenPerikaryon

MECANISMO DE DOENÇA

Encephalopathy, familial, with neuroserpin inclusion bodies

A neurodegenerative disease clinically characterized by dementia. Additional features include intellectual decline, psychic seizures, progressive myoclonic epilepsy, and cerebral atrophy. Histologically, it is characterized by the presence of eosinophilic inclusion bodies (called Collins bodies) throughout the deeper layers of the cerebral cortex, leading to neuronal death.

EXPRESSÃO TECIDUAL(Ubíquo)
Brain Frontal Cortex BA9
270.5 TPM
Brain Spinal cord cervical c-1
162.0 TPM
Córtex cerebral
133.3 TPM
Brain Anterior cingulate cortex BA24
120.6 TPM
Hipotálamo
71.8 TPM
INTERAÇÕES PROTEICAS (1)
OUTRAS DOENÇAS (2)
familial encephalopathy with neuroserpin inclusion bodiesprogressive dementia with neuroserpin inclusion bodies
HGNC:8943UniProt:Q99574
NHLRC1E3 ubiquitin-protein ligase NHLRC1Disease-causing germline mutation(s) 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

Medicamentos e terapias

BRIVARACETAMPhase 3

Mecanismo: Synaptic vesicle glycoprotein 2A modulator

ROPINIROLEPhase 2

Mecanismo: D2-like dopamine receptor agonist

Ver mais no OpenTargets

Variantes genéticas (ClinVar)

198 variantes patogênicas registradas no ClinVar.

🧬 EPM2A: NM_005670.4(EPM2A):c.934del (p.Arg312fs) ()
🧬 EPM2A: NM_005670.4(EPM2A):c.361G>T (p.Val121Leu) ()
🧬 EPM2A: GRCh38/hg38 6q24.2-27(chr6:144488859-170610382)x3 ()
🧬 EPM2A: NM_005670.4(EPM2A):c.920_921dup (p.Glu308fs) ()
🧬 EPM2A: Single allele ()
Ver todas no ClinVar

Classificação de variantes (ClinVar)

Distribuição de 3,478 variantes classificadas pelo ClinVar.

174
1391
1913
Patogênica (5.0%)
VUS (40.0%)
Benigna (55.0%)
VARIANTES MAIS SIGNIFICATIVAS
EPM2A: NM_005670.4(EPM2A):c.934del (p.Arg312fs) [Pathogenic]
PRICKLE2: NM_198859.4(PRICKLE2):c.2399G>A (p.Arg800His) [Uncertain significance]
PRICKLE2: NM_198859.4(PRICKLE2):c.1161C>A (p.Ser387Arg) [Uncertain significance]
PRICKLE2: NM_198859.4(PRICKLE2):c.1936G>C (p.Asp646His) [Uncertain significance]
KCNC1: NM_001112741.2(KCNC1):c.830C>T (p.Ser277Leu) [Uncertain significance]

Vias biológicas (Reactome)

66 vias biológicas associadas aos genes desta condição.

Myoclonic epilepsy of Lafora Mitochondrial translation termination Respiratory electron transport Complex I biogenesis Mitochondrial protein degradation Thromboxane signalling through TP receptor Signaling by WNT Translesion synthesis by REV1 Expression of BMAL (ARNTL), CLOCK, and NPAS2 Opsins Negative feedback regulation of MAPK pathway Negative regulation of MAPK pathway Energy dependent regulation of mTOR by LKB1-AMPK Defective SLC1A3 causes episodic ataxia 6 (EA6) Sensory perception of salty taste Regulation of CDH11 Expression and Function Regulation of CDH11 gene transcription Intracellular oxygen transport Mitochondrial unfolded protein response (UPRmt) NADE modulates death signalling Activation of BIM and translocation to mitochondria Activation of caspases through apoptosome-mediated cleavage Ubiquinol biosynthesis Export of Viral Ribonucleoproteins from Nucleus NEP/NS2 Interacts with the Cellular Export Machinery WNT mediated activation of DVL ABC transporter disorders Defective ABCA3 causes SMDP3 Strand-asynchronous mitochondrial DNA replication Transcriptional regulation by RUNX2 NOTCH2 Activation and Transmission of Signal to the Nucleus Signaling by NOTCH2 Response of endothelial cells to shear stress Developmental Cell Lineages TP53 Regulates Transcription of Cell Death Genes SARS-CoV-2 Infection Downregulation of ERBB2 signaling Regulation of CDH1 Expression and Function Regulation of RUNX2 expression and activity Transcriptional regulation by RUNX3 TP53 Regulates Transcription of Caspase Activators and Caspases Defective homologous recombination repair (HRR) due to PALB2 loss of function Defective HDR through Homologous Recombination Repair (HRR) due to PALB2 loss of BRCA1 binding function NPAS4 regulates expression of target genes Recruitment and ATM-mediated phosphorylation of repair and signaling proteins at DNA double strand breaks Defective MUTYH substrate processing Defective Base Excision Repair Associated with NEIL1 Signaling by MET Virion Assembly and Release Virion Assembly and Release IKK complex recruitment mediated by RIP1 Transcriptional regulation by RUNX1 Sphingolipid de novo biosynthesis Neutrophil degranulation Voltage gated Potassium channels Cargo recognition for clathrin-mediated endocytosis Clathrin-mediated endocytosis Neddylation Antigen processing: Ubiquitination & Proteasome degradation Asymmetric localization of PCP proteins COPII-mediated vesicle transport XBP1(S) activates chaperone genes Cargo concentration in the ER COPI-mediated anterograde transport Intra-Golgi traffic Glycogen synthesis

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Publicações mais relevantes

Timeline de publicações
279 papers (10 anos)
#1

Clinical Utility of Genetic Diagnosis in Drug-Resistant Epilepsy: Refining Classification and Guiding Therapy in an Egyptian Cohort.

Clinical genetics2026 Feb 15

Recent advances in epilepsy genetics have revolutionized the diagnosis and management of patients. This study was conducted to evaluate the clinical significance of molecular diagnosis in Egyptian patients with pediatric-onset drug-resistant epilepsy (DRE). All patients lacked electro-clinic-radiological concordant lesions and therefore were not candidates for surgical intervention. More than 70% of cases had variable degrees of cognitive impairment, and about 25% had different forms of movement disorders. Exome sequencing was able to unravel potential genetic defects in 40 patients across 31 genes. The study identified 15 novel variants, including those in MYCBP2 and BAZ2B, which were recently linked to genetic epilepsy. Genetic diagnosis refined classification and guided therapy in several patients, particularly those with ion channelopathies, progressive myoclonic epilepsy, infantile convulsions, choreoathetosis syndrome, and glucose transporter Type 1 deficiency. Our findings underscore the importance of genetic testing for patients with DRE, improving clinical classifications beyond electroclinical assessments and supporting better outcomes.

#2

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.

#3

KCTD7-related progressive myoclonic epilepsy: Clinical and genetic characterization of six Indian patients and review of literature.

Seizure2026 Feb

Progressive myoclonic epilepsies (PMEs) are severe epileptic encephalopathies characterized by drug-resistant seizures, myoclonus, neuroregression, and ataxia. Biallelic variants in KCTD7 cause a rare autosomal recessive PME (MIM #611726). We retrospectively analysed six unrelated children with genetically confirmed KCTD7-related PME diagnosed at a quaternary referral centre in South India (2018-2025). Clinical features, EEG, SSEP, MRI, and genetic results were reviewed. Variant pathogenicity was assessed per ACMG guidelines. Six patients (3 male, 3 female; median onset 11 months, range 6-18 months) were included. Initial symptoms were seizures (four patients) or developmental delay (two patients), with regression in five patients. Fever-triggered worsening was noted in all patients. Ataxia was a common symptom (five patients). EEG showed generalized or multifocal epileptiform discharges, often posterior-predominant. MRI demonstrated diffuse cerebral/cerebellar atrophy and characteristic thalamic T2 hypo-intensity in three patients. Genetic analysis identified seven variants: five missense and two frame-shift, including three novel variants (p.Arg279Cys, p.Asp115Profs88, and p.Cys71fs*130). The recurrent p.Ala178Val variant was observed in two patients. One patient had epilepsia partialis continua responsive to corticosteroids. This series expands the phenotypic and genotypic spectrum of KCTD7-related PME in India. Key clinical clues include developmental regression, seizures, cortical myoclonus, fever-provoked worsening, posterior-dominant epileptiform discharges, and early ataxia. The study highlights the importance of comprehensive genetic testing for accurate diagnosis, prognostication, and counselling in early-onset epileptic encephalopathies.

#4

First Reported Case of CLN5 Disease in Japan: Identification of a Novel Homozygous Pathogenic Variant Through Whole Genome Sequencing.

Clinical case reports2026 Jan

Neuronal ceroid lipofuscinoses (NCL) belong to a group of inherited neurodegenerative diseases characterized by psychomotor regression, seizures, and visual impairment, resulting from intracellular accumulation of lipofuscin. CLN5, a subtype typically manifesting between ages 4 to 17, is particularly rare in non-Finnish populations. Here, we report the first Japanese case of CLN5 in a 12-year-old girl with progressive myoclonic epilepsy and psychomotor regression. Initial assessments for common metabolic disorders, including GM2 gangliosidosis, were inconclusive. Trio-based genome sequencing (GS) identified a novel homozygous pathogenic variant in CLN5, confirming the diagnosis at 10 years and 6 months of age. Subsequent evaluations revealed progressive cerebral and cerebellar atrophy and vision loss. This case underscores the importance of GS in diagnosing rare neurodegenerative diseases and highlights the clinical spectrum of CLN5, which presents with rapid neurological decline. Expanding diagnostic frameworks with genetic testing is critical for early diagnosis and potential therapeutic interventions in CLN5 and related NCL disorders.

#5

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.

Publicações recentes

Ver todas no PubMed

📚 EuropePMC192 artigos no totalmostrando 195

2026

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

Cureus
2026

Clinical Utility of Genetic Diagnosis in Drug-Resistant Epilepsy: Refining Classification and Guiding Therapy in an Egyptian Cohort.

Clinical genetics
2026

CHD2-related developmental and epileptic encephalopathy: A phenotypic mimic of progressive myoclonic epilepsy.

Epileptic disorders : international epilepsy journal with videotape
2026

KCTD7-related progressive myoclonic epilepsy: Clinical and genetic characterization of six Indian patients and review of literature.

Seizure
2025

Expanding the spectrum of NUS1-related progressive myoclonic epilepsy: a novel variant and exploratory use of metformin.

Frontiers in genetics
2026

First Reported Case of CLN5 Disease in Japan: Identification of a Novel Homozygous Pathogenic Variant Through Whole Genome Sequencing.

Clinical case reports
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
2025

Case Report: Compound heterozygous KCTD7 variants in two siblings presenting with myoclonic epilepsy and ataxia.

Frontiers in neuroscience
2025

Novel, complex configurations of the MARCHF6 repeat expansion associated with progressive myoclonic epilepsy and familial adult myoclonic epilepsy.

Brain communications
2026

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

Epileptic disorders : international epilepsy journal with videotape
2025

Persistent lymphopenia in a Japanese boy with neuronal ceroid lipofuscinosis type 3.

European journal of medical genetics
2026

Epilepsy in dentatorubral-pallidoluysian atrophy: A systematic review and meta-analysis.

Epilepsia
2026

Exploring the role of apolipoprotein ε4 in progressive myoclonic epilepsy type 1.

Epileptic disorders : international epilepsy journal with videotape
2025

Individual lipid alterations at the origin of neuronal Ceramide Synthase defects.

PLoS genetics
2025

Sleep architecture and qEEG patterns in PME type 1 diagnosis.

Epileptic disorders : international epilepsy journal with videotape
2025

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

Neurology. Clinical practice
2025

KCNC1-Related Progressive Myoclonus Epilepsy: A Case Report.

Clinical case reports
2025

A CGG Repeat Expansion in CSNK1E Associated with Progressive Myoclonic Epilepsy with Incomplete Penetrance.

Movement disorders : official journal of the Movement Disorder Society
2025

Familial adult myoclonus epilepsy: A comprehensive diagnostic strategy for clinical practice.

Epilepsia
2025

A novel intronic variant in the ASAH1 gene enhances aberrant splicing, causing spinal muscular atrophy with progressive myoclonic epilepsy.

Italian journal of pediatrics
2025

Total corpus callosotomy for an adult patient with progressive myoclonic epilepsy associated with dentatorubral-pallidoluysian atrophy: illustrative case.

Journal of neurosurgery. Case lessons
2025

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

BMC neurology
2025

Approach to Progressive Myoclonic Epilepsies: Clinical Clues for Genetic Testing.

Journal of child neurology
2025

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

Acta epileptologica
2025

Genetic insights into progressive myoclonic epilepsies: A case study of KCTD7 mutation in an Iranian-Azeri-Turkish family.

Epilepsy & behavior reports
2025

Acid Ceramidase Deficiency: New Insights on SMA-PME Natural History, Biomarkers, and In Cell Enzyme Activity Assay.

Neurology. Genetics
2025

Homozygous loss of function variant in LMNB2 gene causes major brain malformation and perinatal death.

Journal of medical genetics
2025

Delineating the Clinical and Brain Imaging Characteristics of the Neonatal Form of CSTB -Related Neurodevelopmental Disorders.

Clinical genetics
2025

Modeling and correction of protein conformational disease in iPSC-derived neurons through personalized base editing.

Molecular therapy. Nucleic acids
2025

Spinal muscular atrophy with progressive myoclonic epilepsy: A case report from China with new ASAH1 variants.

Heliyon
2025

Sialidosis type 1 in a Turkish family: a case report and review of literatures.

Journal of pediatric endocrinology & metabolism : JPEM
2025

Two Cases of Genetically Proven SCARB2-Related Progressive Myoclonic Epilepsy Without Renal Failure: A Report From India.

Journal of movement disorders
2025

Case series; NUS1 deletions cause a progressive myoclonic epilepsy with ataxia.

Seizure
2024

[Therapeutic perspectives for lysosomal storage disorders caused by acid ceramidase deficiency].

Medecine sciences : M/S
2025

Utility of Optical Genome Mapping in Repeat Disorders.

Clinical 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

Genetic profile of progressive myoclonic epilepsy in Mali reveals novel findings.

Frontiers in neurology
2025

A Novel m.1636A > G Variant in Mitochondrial TV Gene Might Cause New Phenotype of Mitochondrial Disease in a 2-Year Old Chinese Boy.

Molecular neurobiology
2024

Next-generation sequencing in pediatric-onset epilepsies: Analysis with target panels and personalized therapeutic approach.

Epilepsia open
2024

Spectrum of Leukodystrophy and Genetic Leukoencephalopathy in Indian Population Diagnosed by Clinical Exome Sequencing and Clinical Utility.

Neurology. Genetics
2024

Association Between Clinical Severity, Neuroimaging, and Electroencephalographic Findings in Children with Subacute Sclerosing Panencephalitis.

Journal of child neurology
2024

Discovery of a Novel Shared Variant Among RTEL1 Gene and RTEL1-TNFRSF6B lncRNA at Chromosome 20q13.33 in Familial Progressive Myoclonus Epilepsy.

International journal of genomics
2024

Hematopoietic stem cell transplantation leads to biochemical and functional correction in two mouse models of acid ceramidase deficiency.

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

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

The Journal of comparative neurology
2024

Identification of a Novel ASAH1 Gene Mutation in Spinal Muscular Atrophy with Progressive Myoclonic Epilepsy.

Iranian journal of child neurology
2025

Islands and Neurology: An Exploration into a Unique Association.

The Neuroscientist : a review journal bringing neurobiology, neurology and psychiatry
2024

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

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

Myoclonus improvement after seizures in progressive myoclonic epilepsy type 7: a case report.

BMC neurology
2024

Unraveling Phenotypic Variability in Action Myoclonus with Renal Failure with SCARB2 Mutation in Siblings.

Movement disorders clinical practice
2024

Ceroid lipofuscinosis type 2 disease: Effective presymptomatic therapy-Oldest case of a presymptomatic enzyme therapy.

European journal of neurology
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

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

Genes
2024

Whole exome sequencing identifies variable expressivity of CLN6 variants in Progressive myoclonic epilepsy affected families.

Epilepsy research
2024

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

Epilepsy research
2024

The Roles of Cystatin B in the Brain and Pathophysiological Mechanisms of Progressive Myoclonic Epilepsy Type 1.

Cells
2024

KCTD7-related progressive myoclonic epilepsy: Report of 42 cases and review of literature.

Epilepsia
2023

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

bioRxiv : the preprint server for biology
2024

Frontal deficits and atrophy in a patient with familial encephalopathy with neuroserpin inclusion bodies detected by single-case voxel-based morphometry: a case report.

BMC neurology
2024

Pathological Deficit of Cystatin B Impairs Synaptic Plasticity in EPM1 Human Cerebral Organoids.

Molecular neurobiology
2024

ASAH1 Variants Causing Spinal Muscular Atrophy Phenotype.

Indian journal of pediatrics
2024

Progressive myoclonic epilepsy as an expanding phenotype of NGLY1-associated congenital deglycosylation disorder: A case report and review of the literature.

European journal of medical genetics
2024

Functional analysis of a novel splice site variant in the ASAH1 gene.

Molecular genetics & genomic medicine
2023

Generation of a human induced pluripotent stem cell line (UEFi004-A) from a patient with progressive myoclonic epilepsy type 1 (EPM1).

Stem cell research
2023

Deep brain stimulation in a patient with progressive myoclonic epilepsy and ataxia due to potassium channel mutation (MEAK). A case report and review of the literature.

Epilepsy & behavior reports
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
2023

Progressive myoclonic epilepsy type 1 (EPM1) patients present with abnormal 1H MRS brain metabolic profiles associated with cognitive function.

NeuroImage. Clinical
2023

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

Frontiers in neurology
2023

Familial Adult Myoclonic Epilepsy: Clinical and Genetic Approach to an Under-recognized Disease.

Noro psikiyatri arsivi
2023

Spinal Muscular Atrophy with Progressive Myoclonic Epilepsy (SMA-PME): three new cases and review of the mutational spectrum.

Italian journal of pediatrics
2023

Spinal muscular atrophy-like phenotype in a mouse model of acid ceramidase deficiency.

Communications biology
2023

Cortico-muscular coherence and brain networks in familial adult myoclonic epilepsy and progressive myoclonic epilepsy.

Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology
2023

Exome Sequencing and Multigene Panel Testing in 1,411 Patients With Adult-Onset Neurologic Disorders.

Neurology. Genetics
2023

Spinocerebellar Ataxia type 17 presenting with progressive myoclonic epilepsy.

eNeurologicalSci
2023

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

Neurobiology of disease
2023

Rhythmic cortical myoclonus in patients with 6Q22.1 deletion.

European journal of paediatric neurology : EJPN : official journal of the European Paediatric Neurology Society
2022

[Progressive myoclonic epilepsy in the department of neurology of the University Teaching hospital Point "G"].

Le Mali medical
2023

A novel SEMA6B variant causes adult-onset progressive myoclonic epilepsy-11 in a Chinese family: A case report and literature review.

Frontiers in genetics
2023

Acid Ceramidase Deficiency: Bridging Gaps between Clinical Presentation, Mouse Models, and Future Therapeutic Interventions.

Biomolecules
2023

IRF2BPL: A new genotype for progressive myoclonus epilepsies.

Epilepsia
2023

Neurophysiology of Juvenile and Progressive Myoclonic Epilepsy.

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

AFG3L2 Biallelic Mutation: Clinical Heterogeneity in Two Italian Patients.

Cerebellum (London, England)
2023

Short- and long-interval intracortical inhibition in EPM1 is related to genotype.

Epilepsia
2022

Insights into the Genetic Profile of Two Siblings Affected by Unverricht-Lundborg Disease Using Patient-Derived hiPSCs.

Cells
2022

Adult-onset Krabbe disease presenting with progressive myoclonic epilepsy and asymmetric occipital lesions: A case report.

Frontiers in neurology
2022

Human stefin B: from its structure, folding, and aggregation to its function in health and disease.

Frontiers in molecular neuroscience
2022

The clinical spectrum of SMA-PME and in vitro normalization of its cellular ceramide profile.

Annals of clinical and translational neurology
2022

Five patients with spinal muscular atrophy-progressive myoclonic epilepsy (SMA-PME): a novel pathogenic variant, treatment and review of the literature.

Neuromuscular disorders : NMD
2023

Early Treatment with Metformin Improves Neurological Outcomes in Lafora Disease.

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

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

Child neurology open
2022

Neuronal Ceroid Lipofuscinoses Presenting as Rett-like Phenotype: A Two-Case Report From Thailand.

Pediatric neurology
2022

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

Revista de neurologia
2022

Kctd7 deficiency induces myoclonic seizures associated with Purkinje cell death and microvascular defects.

Disease models & mechanisms
2022

DNM1L mutation presenting as progressive myoclonic epilepsy associated with acute febrile infection-related epilepsy syndrome.

Epileptic disorders : international epilepsy journal with videotape
2023

Long Latency Reflexes in Clinical Neurology: A Systematic Review.

The Canadian journal of neurological sciences. Le journal canadien des sciences neurologiques
2022

Trehalose Treatment in Zebrafish Model of Lafora Disease.

International journal of molecular sciences
2022

Age-Dependent Reduction in the Expression Levels of Genes Involved in Progressive Myoclonus Epilepsy Correlates with Increased Neuroinflammation and Seizure Susceptibility in Mouse Models.

Molecular neurobiology
2022

SEMA6B variants cause intellectual disability and alter dendritic spine density and axon guidance.

Human molecular genetics
2022

Non-convulsive Status Epilepticus in SEMA6B-Related Progressive Myoclonic Epilepsy: A Case Report With Literature Review.

Frontiers in pediatrics
2022

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

Clinical neurology and neurosurgery
2022

Clinical and genetic characterization of a cohort of 97 CLN6 patients tested at a single center.

Orphanet journal of rare diseases
2022

Genotype-Phenotype correlations of SCARB2 associated clinical presentation: a case report and in-depth literature review.

BMC neurology
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

Higher order visual dysfunction and myoclonic-atonic seizure: an atypical presentation of CLN6 neuronal ceroid lipofuscinosis.

BMJ case reports
2021

Sodium voltage-gated channel alpha subunit 9 mutation in epilepsy.

European review for medical and pharmacological sciences
2022

Epileptic negative myoclonus in herpes simplex virus encephalitis.

Epileptic disorders : international epilepsy journal with videotape
2022

KCTD7-related progressive myoclonic epilepsy: report of three Indian families and review of literature.

Clinical dysmorphology
2021

Adult-onset rapidly worsening progressive myoclonic epilepsy caused by a novel variant in DHDDS.

Annals of clinical and translational neurology
2022

Major intra-familial variability in Unverricht-Lundborg disease.

Epileptic disorders : international epilepsy journal with videotape
2021

[Neuronal ceroid lipofuscinosis. Type 6 late infantile variant in two compound heterozygous siblings with novel mutations].

Revista de neurologia
2021

An empirical pipeline for personalized diagnosis of Lafora disease mutations.

iScience
2021

A novel deletion mutation in EPM2A underlies progressive myoclonic epilepsy (Lafora body disease) in a Pakistani family.

Neurology Asia
2021

DRPLA: An unusual disease or an underestimated cause of ataxia in Brazil?

Parkinsonism & related disorders
2021

Clinical and molecular characterization of Unverricht-Lundborg disease among Egyptian patients.

Epilepsy research
2021

Wearable monitoring of positive and negative myoclonus in progressive myoclonic epilepsy type 1.

Clinical neurophysiology : official journal of the International Federation of Clinical Neurophysiology
2022

Myoclonic Epilepsy with Ragged-red Fibers with Intranuclear Inclusions.

Internal medicine (Tokyo, Japan)
2021

Genetic Diagnosis in Children with Epilepsy and Developmental Disorders by Targeted Gene Panel Analysis in a Developing Country.

Journal of epilepsy research
2021

Juvenile Huntington's disease masquerading as progressive myoclonus epilepsy.

Epilepsy & behavior reports
2021

Clinical features and genetics in non-5q spinal muscular atrophy caused by acid ceramidase deficiency.

Journal of medicine and life
2021

Canine Lafora Disease: An Unstable Repeat Expansion Disorder.

Life (Basel, Switzerland)
2021

Miglustat Therapy for SCARB2-Associated Action Myoclonus-Renal Failure Syndrome.

Neurology. Genetics
2022

A diagnosis of progressive myoclonic ataxia guided by blood biomarkers.

Parkinsonism & related disorders
2021

Progressive myoclonic epilepsy due to rare mitochondrial ND6 mutation, m.14487T>C.

BMJ neurology open
2021

A De Novo SEMA6B Variant in a Chinese Patient with Progressive Myoclonic Epilepsy-11 and Review of the Literature.

Journal of molecular neuroscience : MN
2021

Zonisamide-responsive myoclonus in SEMA6B-associated progressive myoclonic epilepsy.

Annals of clinical and translational neurology
2021

A novel variant of dehydrodolichol diphosphate synthase (DHDDS) mutation with adult-onset progressive myoclonus ataxia.

Parkinsonism & related disorders
2021

Novel Truncating and Missense Variants in SEMA6B in Patients With Early-Onset Epilepsy.

Frontiers in cell and developmental biology
2021

Compound heterozygous KCTD7 variants in progressive myoclonus epilepsy.

Journal of neurogenetics
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

A novel homozygous splice-site mutation in SCARB2 is associated with progressive myoclonic epilepsy with renal failure.

Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology
2021

A Novel Mutation in KCDT7 Gene in an Indian Girl With Progressive Myoclonus Epilepsy.

Cureus
2021

Progressive myoclonus epilepsy KCNC1 variant causes a developmental dendritopathy.

Epilepsia
2022

Myoclonus epilepsy and ataxia due to potassium channel mutation (MEAK): a cause of progressive myoclonic epilepsy.

Acta neurologica Belgica
2021

Comorbid seizure reduction after pallidothalamic tractotomy for movement disorders: Revival of Jinnai's Forel-H-tomy.

Epilepsia open
2021

A survey of the European Reference Network EpiCARE on clinical practice for selected rare epilepsies.

Epilepsia open
2021

Compound heterozygous variants in GOSR2 associated with congenital muscular dystrophy: A case report.

European journal of medical genetics
2021

Spinal Muscular Atrophy and Progressive Myoclonic Epilepsy: A Rare Association.

Journal of neurosciences in rural practice
2021

Epilepsy in MT-ATP6 - related mils/NARP: correlation of elettroclinical features with heteroplasmy.

Annals of clinical and translational neurology
2021

Progressive Myoclonic Epilepsy'-like presentation of Cerebrotendinous Xanthomatosis in an Indian Family with A Novel C.646+1G>A Splice Site Mutation.

Epilepsy & behavior reports
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

FBXO28 causes developmental and epileptic encephalopathy with profound intellectual disability.

Epilepsia
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
2020

EEG abnormalities in patients with chronic neuronopathic Gaucher disease: A retrospective review.

Molecular genetics and metabolism
2020

Long-term outcomes of two patients with progressive myoclonic epilepsy treated with vagus nerve stimulation therapy.

Heliyon
2020

Metreleptin for the treatment of progressive encephalopathy with/without lipodystrophy (PELD) in a child with progressive myoclonic epilepsy: a case report.

Italian journal of pediatrics
2021

Focus on progressive myoclonic epilepsy in Berardinelli-Seip syndrome.

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

Moyamoya and progressive myoclonic epilepsy secondary to CLN6 bi-allelic mutations - A previously unreported association.

Epilepsy & behavior reports
2020

Progressive myoclonic epilepsy: myoclonic epilepsy and ataxia due to KCNC1 mutation (MEAK): a case report and review of the literature.

Epileptic disorders : international epilepsy journal with videotape
2020

ASAH1-related disorders: Description of 15 novel pediatric patients and expansion of the clinical phenotype.

Clinical genetics
2020

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

The Journal of biological chemistry
2020

Spinal muscular atrophy and Farber disease due to ASAH1 variants: A case report.

American journal of medical genetics. Part A
2020

An elongated tract of polyQ in the carboxyl‑terminus of human α1A calcium channel induces cell apoptosis by nuclear translocation.

Oncology reports
2020

Early-onset rapidly progressive myoclonic epilepsy associated with G392R likely pathogenic variant in SERPINI1.

Seizure
2020

Discovering candidate imprinted genes and imprinting control regions in the human genome.

BMC genomics
2020

ASAH1 pathogenic variants associated with acid ceramidase deficiency: Farber disease and spinal muscular atrophy with progressive myoclonic epilepsy.

Human mutation
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

De Novo Truncating Variants in the Last Exon of SEMA6B Cause Progressive Myoclonic Epilepsy.

American journal of human genetics
2020

Acid Ceramidase Depletion Impairs Neuronal Survival and Induces Morphological Defects in Neurites Associated with Altered Gene Transcription and Sphingolipid Content.

International journal of molecular sciences
2020

A detailed description of the phenotypic spectrum of North Sea Progressive Myoclonus Epilepsy in a large cohort of seventeen patients.

Parkinsonism & related disorders
2020

Distortion of the cortical motor map in patients with Unverricht-Lundborg disease: A combined TMS-MRI study.

Epilepsy research
2020

Drug Treatment of Progressive Myoclonic Epilepsy.

Paediatric drugs
2019

Medical management of a child with congenital generalized lipodystrophy accompanied with progressive myoclonic epilepsy: A case report.

Medicine
2019

North Sea Progressive Myoclonus Epilepsy is Exacerbated by Heat, A Phenotype Primarily Associated with Affected Glia.

Neuroscience
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
2020

Renal Pathological Findings in Action Myoclonus-Renal Failure Syndrome.

Nephron
2019

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

Seizure
2019

Cystatin B Involvement in Synapse Physiology of Rodent Brains and Human Cerebral Organoids.

Frontiers in molecular neuroscience
2020

An Unusual Masquerader of Progressive Myoclonic Epilepsy.

Indian journal of pediatrics
2019

A novel case report of spinal muscular atrophy with progressive myoclonic epilepsy from Iran [Corrigendum].

International medical case reports journal
2019

Selective deep brain stimulation in the substantia nigra reduces myoclonus in progressive myoclonic epilepsy: a novel observation and short review of the literature.

Epileptic disorders : international epilepsy journal with videotape
2019

[Pathogenic gene variants and clinical phenotype features of 26 children with progressive myoclonic epilepsy].

Zhonghua er ke za zhi = Chinese journal of pediatrics
2019

A novel case report of spinal muscular atrophy with progressive myoclonic epilepsy from Iran.

International medical case reports journal
2019

Progressive myoclonic epilepsy-associated gene Kctd7 regulates retinal neurovascular patterning and function.

Neurochemistry international
2021

Neuroimaging-based brain-age prediction in diverse forms of epilepsy: a signature of psychosis and beyond.

Molecular psychiatry
2019

Total Corpus Callosotomy for Medically Refractory Status Epilepticus Due to Progressive Myoclonic Epilepsy: A Clinically Challenging Case.

World neurosurgery
2019

Epileptological aspects of juvenile neuronal ceroid lipofuscinosis (CLN3 disease) through the lifespan.

Epilepsy & behavior : E&B
2019

Exome sequencing identifies compound heterozygous KCTD7 mutations in a girl with progressivemyoclonus epilepsy.

Clinica chimica acta; international journal of clinical chemistry
2018

Progressive Myoclonic Epilepsy Type 8 Due to CERS1 Deficiency: A Novel Mutation with Prominent Ataxia.

Movement disorders clinical practice
2019

A 12-kb structural variation in progressive myoclonic epilepsy was newly identified by long-read whole-genome sequencing.

Journal of human genetics
2018

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

Frontiers in pediatrics
2018

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

Medicina
2018

Lafora Disease Masquerading as Hepatic Dysfunction.

Cureus
2019

Zebrafish acid ceramidase: Expression in Pichia pastoris GS115and biochemical characterization.

International journal of biological macromolecules
2019

Progressive myoclonus epilepsy in Gaucher Disease due to a new Gly-Gly mutation causing loss of an Exonic Splicing Enhancer.

Journal of neurology
2019

Pathophysiology of corticobasal degeneration: Insights from neurophysiological studies.

Journal of clinical neuroscience : official journal of the Neurosurgical Society of Australasia
2018

KCTD7 deficiency defines a distinct neurodegenerative disorder with a conserved autophagy-lysosome defect.

Annals of neurology
2018

Exome sequencing in adult neurology practice: Challenges and rewards in a mixed resource setting.

Clinical neurology and neurosurgery
2018

Utility of Skin Biopsy in a Case of Progressive Myoclonic Epilepsy: Answer.

The American Journal of dermatopathology
2018

Acid ceramidase deficiency: Farber disease and SMA-PME.

Orphanet journal of rare diseases
2018

Lafora disease: from genotype to phenotype.

Journal of genetics
2018

First Molecular Diagnosis of a Patient with Unverricht-Lundborg Disease in Korea.

Yonsei medical journal
2018

Seizure remission and improvement of neurological function in sialidosis with perampanel therapy.

Epilepsy & behavior case reports

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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. Clinical Utility of Genetic Diagnosis in Drug-Resistant Epilepsy: Refining Classification and Guiding Therapy in an Egyptian Cohort.
    Clinical genetics· 2026· PMID 41693309mais citado
  2. Drug-Resistant Early-Onset Progressive Myoclonic Epilepsy Revealing Lafora Disease: A Case Report.
    Cureus· 2026· PMID 41755925mais citado
  3. KCTD7-related progressive myoclonic epilepsy: Clinical and genetic characterization of six Indian patients and review of literature.
    Seizure· 2026· PMID 41564653mais citado
  4. First Reported Case of CLN5 Disease in Japan: Identification of a Novel Homozygous Pathogenic Variant Through Whole Genome Sequencing.
    Clinical case reports· 2026· PMID 41479428mais citado
  5. The biochemical dynamics of the glycogen phosphatase laforin directly impact brain metabolism.
    The Journal of biological chemistry· 2026· PMID 41443417mais citado
  6. Intersection of Spinal Muscular Atrophy and Progressive Myoclonic Epilepsy Syndrome: ASAH1 Gene.
    Ann Indian Acad Neurol· 2026· PMID 41964139recente
  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. CHD2-related developmental and epileptic encephalopathy: A phenotypic mimic of progressive myoclonic epilepsy.
    Epileptic Disord· 2026· PMID 41631879recente

Bases de dados e fontes oficiais

Identificadores e referências canônicas usadas para montar este verbete.

  1. ORPHA:98261(Orphanet)
  2. MONDO:0020074(MONDO)
  3. Epilepsia(PCDT · Ministério da Saúde)
  4. GARD:7140(GARD (NIH))
  5. Variantes catalogadas(ClinVar)
  6. Busca completa no PubMed(PubMed)
  7. Q7248853(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

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Epilepsia, mioclonia progressiva

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