Distúrbio raro de fosforilação oxidativa mitocondrial caracterizado por convulsões mioclônicas, ataxia, epilepsia generalizada, fraqueza muscular e fibras vermelhas irregulares na biópsia muscular.
Introdução
O que você precisa saber de cara
Distúrbio raro de fosforilação oxidativa mitocondrial caracterizado por convulsões mioclônicas, ataxia, epilepsia generalizada, fraqueza muscular e fibras vermelhas irregulares na biópsia muscular.
Escala de raridade
<1/50kMuito rara
1/20kRara
1/10kPouco freq.
1/5kIncomum
1/2k
Encontrou um erro ou informação desatualizada? Sugira uma correção →
Entender a doença
Do básico ao detalhe, leia no seu ritmo
Preparando trilha educativa...
Sinais e sintomas
O que aparece no corpo e com que frequência cada sintoma acontece
Partes do corpo afetadas
+ 5 sintomas em outras categorias
Características mais comuns
Os sintomas variam de pessoa para pessoa. Abaixo estão as 18 características clínicas mais associadas, ordenadas por frequência.
Linha do tempo da pesquisa
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
11 genes identificados com associação a esta condição. Padrão de herança: Mitochondrial inheritance.
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)
Mitochondrion inner membrane
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.
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)
SecretedMitochondrionNucleus
Variantes genéticas (ClinVar)
54 variantes patogênicas registradas no ClinVar.
Classificação de variantes (ClinVar)
Distribuição de 23 variantes classificadas pelo ClinVar.
Vias biológicas (Reactome)
57 vias biológicas associadas aos genes desta condição.
Diagnóstico
Os sinais que médicos procuram e os exames que confirmam
Tratamento e manejo
Remédios, cuidados de apoio e o que precisa acompanhar
Onde tratar no SUS
Hospitais de referência no Brasil e o protocolo oficial do SUS (PCDT)
🇧🇷 Atendimento SUS — MERRF
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
Ensaios em destaque
🟢 Recrutando agora
1 pesquisa recrutando participantes. Converse com seu médico sobre a possibilidade de participar.
Outros ensaios clínicos
6 ensaios clínicos encontrados, 1 ativos.
Publicações mais relevantes
Progressive Myoclonic Epilepsies - A Pragmatic Review.
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.
EEG, clinical, and MRI features of status epilepticus associated with mitochondrial diseases.
This study aimed to identify specific EEG features of status epilepticus (SE) in patients with mitochondrial diseases and correlate them with clinical and neuroimaging findings. Clinical, EEG, and brain MRI data from adult patients with mitochondrial-related SE treated at Pitié-Salpêtrière hospital between 2010 and 2021 were reviewed. Thirteen patients were included, with MELAS (n = 5), POLG (n = 3), MERRF (n = 2), COQ8A (n = 2), and MT-ND1 variant (n = 1). One patient had two distinct SE episodes, totaling 14 episodes. Three main EEG patterns were identified: Type 1 (rhythmic sequences with definite evolution, n = 6), Type 2 (Lateralized Periodic Discharges with plus-modifiers (LPDs-plus) and clinical ictal manifestations, n = 12), and Type 3 (LPD-plus evolving into rhythmic activities, n = 11). MRI findings revealed FLAIR hyperintensities indicative of stroke-like lesions in 12 patients (onset: 4-28 days). In three cases, initial MRI was normal, with delayed hyperintensities (5-35 days). In 11/12 cases, stroke-like lesions were confirmed using perfusion or ASL. The localization of these lesions corresponded to electroclinical presentation of SE in most cases. In two patients, the spatial distribution of FLAIR hyperintensities did not align with EEG findings. Evolution of EEG patterns was seen during SE in 12 out of 14 episodes: Type 1 to Type 2 (n = 3), Type 2 to Type 3 (n = 6), and Type 1 to Type 2, then Type 3 (n = 3). SE is a severe complication of mitochondrial diseases. Three main EEG patterns were identified across episodes. Correlation with MRI suggests two mechanisms: (i) neuronal dysfunction generate rhythmic SE patterns that subsequently induce stroke-like lesions, due to increased local energy demands, and (ii) in more severe cases, acute bioenergetic failure and stroke-like lesions may directly trigger a specific EEG pattern, prolonging SE duration.
Mitochondrial tRNA-Derived Diseases.
Mitochondrial tRNA genes are critical hotspots for pathogenic mutations and several mitochondrial diseases. They account for approximately 70-75% of disease-causing mtDNA variants despite comprising only 5-10% of the mitochondrial genome. These mutations interfere with mitochondrial translation and affect oxidative phosphorylation, resulting in remarkably heterogeneous multisystem disorders. Under this light, we systematically reviewed PubMed, Scopus, and MITOMAP databases through October 2025, indexing all clinically relevant pathogenic mt-tRNA mutations classified by affected organ systems and underlying molecular mechanisms. Approximately 500 distinct pathogenic variants were identified across all 22 mt-tRNA genes. Beyond typical syndromes like MELAS, MERRF, Leigh syndrome, and Kearns-Sayre syndrome that are linked to mt-tRNA mutations, they increasingly implicate cardiovascular diseases (cardiomyopathy, hypertension), neuromuscular disorders (myopathies, encephalopathies), sensory impairment (hearing loss, optic neuropathy), metabolic dysfunction (diabetes, polycystic ovary syndrome), renal disease, neuropsychiatric conditions, and cancer. Beyond sequence mutations, defects in post-transcriptional modification systems emerge as critical disease mechanisms affecting mt-tRNA function and stability. The mutations on tRNA genes described herein represent potential targets for emerging genome editing therapies, although several translational challenges remain. However, targeted correction of pathogenic mt-tRNA mutations holds transformative potential for precision intervention on mitochondrial diseases.
Computational design of a high-precision mitochondrial DNA cytosine base editor.
Bystander editing remains a major limitation of current base editors, hindering their precision and therapeutic potential. Here, we present a de novo protein design strategy that creates a structurally rigid interface between a DNA-binding TALE domain and a cytosine deaminase, forming a unified editing module termed TALE-oriented deaminase (TOD). Cryo-EM analysis of TOD-DNA complexes confirms that this precise spatial architecture tightly restricts the deaminase activity window, thereby minimizing unwanted deamination. To further enhance editing specificity, we develop a split version, termed DdCBE-TOD, which virtually eliminates off-target editing. As a proof of concept, we apply DdCBE-TOD to generate a mitochondrial disease mouse model and to correct a pathogenic mutation associated with MERRF syndrome in patient-derived cells, achieving single-nucleotide precision. This work introduces a generalizable and computationally guided approach for ultra-precise base editing, offering a promising platform for both mechanistic studies and therapeutic correction of single-nucleotide mutations.
Disease registries and rare disorders: The virtuous example of mitochondrial medicine.
Primary mitochondrial disorders (PMDs) are an extraordinarily complex group of rare disorders caused by impairment of the mitochondrial electron transport chain, or respiratory chain. Studying genotype-phenotype relationships in PMDs is a complex task. The clinical variability is large even in individuals with the same genotype, and the statistical power is low in single-center studies because of their rarity. To better define the clinical phenotypes associated with PMDs, in the last 15 years a significant multicenter effort has led to nation-wide studies on large cohorts of patients. Many national registries of mitochondrial patients have been developed in recent years, and now there is a strong effort towards international (and even global) registries. This review will revise the notable advances obtained with such studies in recent years, and will discuss the actual developments and future perspectives.
Publicações recentes
MERRF/MELAS overlap syndrome mimicking paradoxical cerebral embolism due to patent foramen ovale.
📖 RevisãoProgressive Myoclonic Epilepsies - A Pragmatic Review.
EEG, clinical, and MRI features of status epilepticus associated with mitochondrial diseases.
📖 RevisãoMitochondrial tRNA-Derived Diseases.
Sequential development of three syndromes in a patient with m.3243A>G mutation: a case report.
📚 EuropePMC173 artigos no totalmostrando 164
Progressive Myoclonic Epilepsies - A Pragmatic Review.
Neurology IndiaEEG, clinical, and MRI features of status epilepticus associated with mitochondrial diseases.
Journal of neurologyMitochondrial tRNA-Derived Diseases.
International journal of molecular sciencesSequential development of three syndromes in a patient with m.3243A>G mutation: a case report.
Frontiers of medicineElectronic cigarette use linked to poor sleep quality: a cross-sectional nationwide population-based study in Korea.
Sleep & breathing = Schlaf & AtmungComputational design of a high-precision mitochondrial DNA cytosine base editor.
Nature structural & molecular biologyGut instinct: microbiome as a modifiable target in the management of neurologic symptoms in myoclonic epilepsy with ragged-red fibers (MERRF).
Annals of medicine and surgery (2012)Selective muscle MRI changes in a patient with a rare mitochondrial DNA variant causing myoclonic epilepsy with ragged red fibres.
Neuromuscular disorders : NMDPeptide-mimetics derived from leucyl-tRNA synthetase are potential agents for the therapy of mt-tRNA related diseases.
Frontiers in pharmacologyDelineating the mechanisms of cerebellar degeneration in paediatric and adult primary mitochondrial disease.
Acta neuropathologicaA Review of the Advances in the Medical Management of Epilepsy Associated With Myoclonic Epilepsy With Ragged-Red Fibers (MERRF) Syndrome.
CureusIn vitro modelling of the neuropathophysiological features of mitochondrial epilepsy.
SeizureSuccessful application of vagus nerve stimulation in super refractory status epilepticus associated with MERRF syndrome.
Epilepsy & behavior reportsDisease registries and rare disorders: The virtuous example of mitochondrial medicine.
Experimental neurologyLNC-ing Genetics in Mitochondrial Disease.
Non-coding RNA[Clinical characteristics of children with MT-TK gene m.8344A>G variation].
Zhonghua er ke za zhi = Chinese journal of pediatricsMyoclonic Epilepsy With Ragged Red Fiber Cardiomyopathy: A Case Report and Brief Review of Literature.
CureusEye closure sensitivity as a novel EEG marker of MERRF.
Epilepsia open[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 geneticsEndocrine Challenges in Myoclonic Epilepsy With Ragged Red Fibers Syndrome: A Case Report.
CureusWide diagnostic and genotypic spectrum in patients with suspected mitochondrial disease.
Orphanet journal of rare diseasesIdentification of new variants in MTRNR1 and MTRNR2 genes using whole mitochondrial genome sequencing in a Taiwanese family with MERRF (myoclonic epilepsy with ragged-red fibers) syndrome.
Hearing researchMitochondrial impairment and synaptic dysfunction are associated with neurological defects in iPSCs-derived cortical neurons of MERRF patients.
Journal of biomedical scienceRestoration of mitochondrial function through activation of hypomodified tRNAs with pathogenic mutations associated with mitochondrial diseases.
Nucleic acids researchGenetic aberration analysis of mitochondrial respiratory complex I implications in the development of neurological disorders and their clinical significance.
Ageing research reviewsThe Mitochondrial tRNASer(UCN) Gene: A Novel m.7484A>G Mutation Associated with Mitochondrial Encephalomyopathy and Literature Review.
Life (Basel, Switzerland)[Epilepsy syndromes associated with hearing loss].
Zhurnal nevrologii i psikhiatrii imeni S.S. KorsakovaMERRF Mutation A8344G in a Four-Generation Family without Central Nervous System Involvement: Clinical and Molecular Characterization.
Journal of personalized medicineYoung-Onset Dementia and Neurodegenerative Disorders of the Young With an Emphasis on Clinical Manifestations.
CureusMitochondrial Epilepsy, a Challenge for Neurologists.
International journal of molecular sciencesStroke-like Episodes in Inherited Neurometabolic Disorders.
MetabolitesMitochondrial Dysfunction in Polycystic Ovary Syndrome.
Reproductive sciences (Thousand Oaks, Calif.)Milder Phenotype of Homoplasmic Versus Heteroplasmic m.8344A>G Variant in the Same Family: A Case Report.
CureusRapamycin rescues mitochondrial dysfunction in cells carrying the m.8344A > G mutation in the mitochondrial tRNALys.
Molecular medicine (Cambridge, Mass.)A Novel MTTK Gene Variant m.8315A>C as a Cause of MERRF Syndrome.
GenesLow Prevalence of Cardiomyopathy in Patients with Mitochondrial Disease and Neurological Manifestations.
Journal of cardiovascular development and diseasePersonalized Medicine in Mitochondrial Health and Disease: Molecular Basis of Therapeutic Approaches Based on Nutritional Supplements and Their Analogs.
Molecules (Basel, Switzerland)Screening and prevalence of cardiac abnormalities on electro- and echocardiography in a large cohort of patients with mitochondrial disease.
Molecular genetics and metabolismCerebello-thalamofrontal dysconnectivity in paroxysmal kinesigenic dyskinesia: A resting-state fMRI study.
Parkinsonism & related disordersMitochondrial Ataxias: Molecular Classification and Clinical Heterogeneity.
Neurology internationalMitochondrial Neurodegeneration.
CellsMitochondrial Medicine in the COVID-19 Era.
Journal of clinical medicineVaccine-Induced Immune Thrombotic Thrombocytopenia: First Case Report in South Korea.
Journal of clinical neurology (Seoul, Korea)Diagnosing Myoclonic Epilepsy With Ragged-Red Fibers Syndrome Requires Documentation of a Causative Mutation.
A&A practiceAltered trigeminothalamic spontaneous low-frequency oscillations in migraine without aura: a resting-state fMRI study.
BMC neurologyMyoclonic Epilepsy with Ragged-red Fibers with Intranuclear Inclusions.
Internal medicine (Tokyo, Japan)Work-up of MERRF and MELAS fatalities requires autopsy of the brain and revision of intra-vitam investigations.
Pathology internationalMitochondrial Syndromes Revisited.
Journal of clinical medicineLipomatosis and optic neuropathy clinches the diagnosis of myoclonic epilepsy with ragged red fibres (MERRF) syndrome.
BMJ case reportsLeigh Syndrome as a Phenotype of Near-Homoplasmic m.8344 A>G Variant in Children.
Child neurology open[Usefulness of combined sequencing of the mitochondrial genome and a targeted panel of nuclear genes involved in mitochondrial diseases].
Annales de biologie cliniquePerioperative Management of an Adult Patient With Myoclonic Epilepsy With Ragged Red Fibers Syndrome: A Case Report.
A&A practiceThe molecular pathology of pathogenic mitochondrial tRNA variants.
FEBS lettersAdvances in mt-tRNA Mutation-Caused Mitochondrial Disease Modeling: Patients' Brain in a Dish.
Frontiers in geneticsEkbom Syndrome: Ataxia, Myoclonus, and Cervical Lipomas.
Annals of neurologyClinical features of mtDNA-related syndromes in adulthood.
Archives of biochemistry and biophysicsLong-term outcomes of two patients with progressive myoclonic epilepsy treated with vagus nerve stimulation therapy.
HeliyonDiagnosing MERRF requires clinical and genetic evidence.
Polish journal of pathology : official journal of the Polish Society of PathologistsPhotosensitive Epilepsy and Polycystic Ovary Syndrome as Manifestations of MERRF.
Case reports in neurological medicine[Mitochondrial encephalopathy, lactic acidosis and stroke-like episodes / myoclonus epilepsy with ragged-red fibers /Leigh overlap syndrome caused by mitochondrial DNA 8344A>G mutation].
Beijing da xue xue bao. Yi xue ban = Journal of Peking University. Health sciencesMoyamoya and progressive myoclonic epilepsy secondary to CLN6 bi-allelic mutations - A previously unreported association.
Epilepsy & behavior reportsShould we investigate mitochondrial disorders in progressive adult-onset undetermined ataxias?
Cerebellum & ataxiasTwo autopsy cases of mitochondrial disease (MELAS and MERRF) with special reference to the histological and immunohistochemical findings of the pancreatic islets.
Pathology internationalOutcome of endoscopic lipoma resection in myoclonic epilepsy with ragged-red fibers syndrome may depend on the genotype.
Asian journal of surgery"Myo-neuropathy" is commonly associated with mitochondrial tRNALysine mutation.
Journal of neurologyGanglionopathies Associated with MERRF Syndrome: An Original Report.
Journal of neuromuscular diseasesGiant subcutaneous lipomatosis in Myoclonic Epilepsy with Ragged Red Fibers syndrome: The first literature report of "laparoscopic" excision.
Asian journal of surgeryTumors masquerading as neurological diseases: A caution for clinicians in planning diagnosis and treatment.
Neurology IndiaClinical phenotype of mitochondrial diabetes due to rare mitochondrial DNA mutations.
Annales d'endocrinologieTeaching NeuroImages: Imaging phenotype of myoclonic epilepsy with ragged-red fibers.
NeurologySelf-initiated lifestyle interventions lead to potential insight into an effective, alternative, non-surgical therapy for mitochondrial disease associated multiple symmetric lipomatosis.
MitochondrionBreaking a single hydrogen bond in the mitochondrial tRNAPhe -PheRS complex leads to phenotypic pleiotropy of human disease.
The FEBS journalPhenotype and genotype determine the diagnosis of MERRF or MERRF plus.
European annals of otorhinolaryngology, head and neck diseasesParkin-mediated mitophagy and autophagy flux disruption in cellular models of MERRF syndrome.
Biochimica et biophysica acta. Molecular basis of diseaseEffects of sleep duration and weekend catch-up sleep on falling injury in adolescents: a population-based study.
Sleep medicineAn update on clinical, pathological, diagnostic, and therapeutic perspectives of childhood leukodystrophies.
Expert review of neurotherapeuticsA high prevalence of arterial hypertension in patients with mitochondrial diseases.
Journal of inherited metabolic diseaseThe best evidence for progressive myoclonic epilepsy: A pathway to precision therapy.
SeizureSystematic review and meta-analysis of cardiac involvement in mitochondrial myopathy.
Neurology. GeneticsIs the MT-TN variant m.5703G>A truly causative for myoclonic epilepsy with ragged red fibers syndrome plus?
Chinese medical journalPhenotypic Diversity of Myoclonus Epilepsy Associated with Ragged-red Fibers with an 8344A>G mtDNA Mutation.
Internal medicine (Tokyo, Japan)Lower urinary tract symptoms in male patients with stroke: A nationwide population-based study.
Archives of gerontology and geriatricsEvidence for laminar cortical necrosis as histological equivalent of a non-classical stroke-like lesion in an m.8344A>G carrier.
Neuropathology : official journal of the Japanese Society of NeuropathologyMultiple mtDNA deletions due to mitochondrion toxicity of anti-hepadnaviral drugs: Comments to the letter from J. Finsterer.
Neuropathology : official journal of the Japanese Society of NeuropathologyPharmacotherapeutic management of epilepsy in MERRF syndrome.
Expert opinion on pharmacotherapyEffect of arousal on sympathetic overactivity in patients with obstructive sleep apnea.
Sleep medicineAutopsied case with MERRF/MELAS overlap syndrome accompanied by stroke-like episodes localized to the precentral gyrus.
Neuropathology : official journal of the Japanese Society of Neuropathology[Ultrastructural and clinical findings of mitochondrial encephalomyopathy:report of 27 cases].
Zhonghua bing li xue za zhi = Chinese journal of pathologyBroadening the phenotype of m.5703G>A mutation in mitochondrial tRNAAsn gene from mitochondrial myopathy to myoclonic epilepsy with ragged red fibers syndrome.
Chinese medical journalLipomatosis Incidence and Characteristics in an Italian Cohort of Mitochondrial Patients.
Frontiers in neurologyBeneficiality of combined levetiracetam, clonazepam for myoclonus in MERRF requires further confirmation.
Chinese medical journalPathophysiological characterization of MERRF patient-specific induced neurons generated by direct reprogramming.
Biochimica et biophysica acta. Molecular cell researchPathology of skeletal muscle fibers and small blood vessels in MERRF syndrome: an ultrastructural study.
Polish journal of pathology : official journal of the Polish Society of PathologistsProximal Myopathy due to m.5835G>A Mutation in Mitochondrial MT-TY Gene.
Case reports in neurological medicineMERRF syndrome (Myoclonic Epilepsy with Ragged Red Fibres) presenting with cervicothoracic lipomatosis.
European annals of otorhinolaryngology, head and neck diseasesRobotic radical prostatectomy in a patient with prostate cancer and MERRF syndrome, a rare mitochondrial disorder affecting muscle fibers.
Urology case reportsMitochondrial tRNA Glutamic Acid Variant 14709T>C Manifesting as Myoclonic Epilepsy with Ragged Red Fibers.
Chinese medical journalAntimyoclonic Effect of Levetiracetam and Clonazepam Combined Treatment on Myoclonic Epilepsy with Ragged-Red Fiber Syndrome with m.8344A>G Mutation.
Chinese medical journal[Isolated myopathy due to the m.8344A>G variant is not unusual and may turn into multisystem disease over time].
Revista de neurologiaOverlapping Leigh Syndrome/Myoclonic Epilepsy With Ragged Red Fibres in an Adolescent Patient With a Mitochondrial DNA A8344G Mutation.
Frontiers in neurologyRNA modification landscape of the human mitochondrial tRNALys regulates protein synthesis.
Nature communicationsMadelung lipomatosis presenting as a manifestation of myoclonic epilepsy with ragged red fibers (MERRF) syndrome.
JAAD case reportsMutation m.15923A>G in the MT-TT gene causes mild myopathy - case report of an adult-onset phenotype.
BMC neurologyRecent Advances in Mitochondria-Targeted Gene Delivery.
Molecules (Basel, Switzerland)Inherited pathogenic mitochondrial DNA mutations and gastrointestinal stem cell populations.
The Journal of pathologyThe heart in m.3243A>G carriers.
HerzClinical syndromes associated with mtDNA mutations: where we stand after 30 years.
Essays in biochemistrymitoTev-TALE: a monomeric DNA editing enzyme to reduce mutant mitochondrial DNA levels.
EMBO molecular medicineFalling After Starting Running in a Case of Myoclonus Epilepsy Associated with Ragged-red Fibers with a 8344A>G mtDNA Mutation.
Internal medicine (Tokyo, Japan)Retinal Neuronal Loss in Visually Asymptomatic Patients With Myoclonic Epilepsy With Ragged-Red Fibers.
Journal of neuro-ophthalmology : the official journal of the North American Neuro-Ophthalmology SocietyGeneration of two isogenic human induced pluripotent stem cell lines from a 15 year-old female patient with MERRF syndrome and A8344G mutation of mitochondrial DNA.
Stem cell researchA Novel Mutation of Mitochondrial T14709C Causes Myoclonic Epilepsy with Ragged Red Fibers Syndrome in a Chinese Patient.
Chinese medical journalThe Bacterial Protein CNF1 as a Potential Therapeutic Strategy against Mitochondrial Diseases: A Pilot Study.
International journal of molecular sciencesSmall fibre neuropathy in mitochondrial diseases explored with sudoscan.
Clinical neurophysiology : official journal of the International Federation of Clinical NeurophysiologyCO2-sensitive tRNA modification associated with human mitochondrial disease.
Nature communicationsATOH1/RFX1/RFX3 transcription factors facilitate the differentiation and characterisation of inner ear hair cell-like cells from patient-specific induced pluripotent stem cells harbouring A8344G mutation of mitochondrial DNA.
Cell death & diseaseInvolvement of the Spinal Cord in Mitochondrial Disorders.
Journal of neurosciences in rural practiceA Klinefelter patient with an additional mitochondrial mutation: Implications for genotype-driven treatment and mitochondrial mutational load in different tissues and family members.
Parkinsonism & related disorders[Isolated girdle weakness: expansion of the phenotypic spectrum of the MERRF 8344A>G mutation of mitochondrial DNA].
Revista de neurologiaMERRF Classification: Implications for Diagnosis and Clinical Trials.
Pediatric neurologySyndromic Hearing Loss: A Brief Review of Common Presentations and Genetics.
Journal of pediatric geneticsPromoter analysis and transcriptional regulation of human carbonic anhydrase VIII gene in a MERRF disease cell model.
Archives of biochemistry and biophysicsGeneration of an induced pluripotent stem cell (iPSC) line from a 40-year-old patient with the A8344G mutation of mitochondrial DNA and MERRF (myoclonic epilepsy with ragged red fibers) syndrome.
Stem cell researchOutcome of epilepsy in patients with mitochondrial disorders: Phenotype genotype and magnetic resonance imaging correlations.
Clinical neurology and neurosurgeryPreferences of AAA/AAG codon recognition by modified nucleosides, τm5s2U34 and t6A37 present in tRNALys.
Journal of biomolecular structure & dynamics[Study of mitochondrial dysfunction using cytoplasmic hybrid].
Patologicheskaia fiziologiia i eksperimental'naia terapiiaSubcortical grey matter changes in juvenile myoclonic epilepsy.
NeuroImage. ClinicalPrevalence of Headache in Patients With Mitochondrial Disease: A Cross-Sectional Study.
HeadacheMolecular Diagnosis of Myoclonus Epilepsy Associated with Ragged-Red Fibers Syndrome in the Absence of Ragged Red Fibers.
Frontiers in neurologyMigraine in mitochondrial disorders: Prevalence and characteristics.
Cephalalgia : an international journal of headacheManagement of epilepsy in MERRF syndrome.
SeizureBeyond cervical lipomas: myoclonus, gait disorder and multisystem involvement leading to mitochondrial disease.
BMJ case reportsMitochondrial Transfer from Wharton's Jelly Mesenchymal Stem Cell to MERRF Cybrid Reduces Oxidative Stress and Improves Mitochondrial Bioenergetics.
Oxidative medicine and cellular longevity[A8344G mitochondrial DNA mutation observed in two generations].
Orvosi hetilapRegional gray matter changes in shift workers: a voxel-based morphometry study.
Sleep medicineGeneration of MERRF patient-derived induced pluripotent stem cell line iMERRF-C7.
Stem cell researchCysteine Supplementation May be Beneficial in a Subgroup of Mitochondrial Translation Deficiencies.
Journal of neuromuscular diseases[Genetic system for maintaining the mitochondrial human genome in yeast Yarrowia lipolytica].
Prikladnaia biokhimiia i mikrobiologiia[A case of cerebrotendinous xanthomatosis mimicking the clinical phenotype of mitochondrial disease with a novel frame-shift mutation (c. 43_44 delGG) in CYP27A1 gene exon 1].
Rinsho shinkeigaku = Clinical neurologyMyoclonus epilepsy in mitochondrial disorders.
Epileptic disorders : international epilepsy journal with videotapeMitochondrial neuropathy: considerations on pathogenesis.
European journal of neurologySuicidal ideation and attempts in patients with stroke: a population-based study.
Journal of neurologyThree families with 'de novo' m.3243A > G mutation.
BBA clinicalDisruption of the human COQ5-containing protein complex is associated with diminished coenzyme Q10 levels under two different conditions of mitochondrial energy deficiency.
Biochimica et biophysica actaPhenotypic spectrum of the m.8344A>G mutation.
Journal of neurologyOphthalmological findings in 74 patients with mitochondrial disease.
Ophthalmic geneticsImpaired ROS Scavenging System in Human Induced Pluripotent Stem Cells Generated from Patients with MERRF Syndrome.
Scientific reportsThe expanding phenotype of MELAS caused by the m.3291T > C mutation in the MT-TL1 gene.
Molecular genetics and metabolism reportsExpanded phenotypic spectrum of the m.8344A>G "MERRF" mutation: data from the German mitoNET registry.
Journal of neurology[A case of MELAS associated with histochemical findings of muscles characteristic of MERRF].
Rinsho shinkeigaku = Clinical neurologyPeripheral neuropathy is a common manifestation of mitochondrial diseases: a single-centre experience.
European journal of neurologyLactose-free diet inducing aseptic pancreatitis and myoclonic jerks in late-onset, putative MERRF syndrome.
Journal of neurologyShort peptides from leucyl-tRNA synthetase rescue disease-causing mitochondrial tRNA point mutations.
Human molecular genetics[Myoclonus epilepsy with ragged-red fibers: a case report and literature review].
Beijing da xue xue bao. Yi xue ban = Journal of Peking University. Health sciencesVolumetric and shape analysis of hippocampal subfields in unilateral mesial temporal lobe epilepsy with hippocampal atrophy.
Epilepsy researchMitoTALEN: A General Approach to Reduce Mutant mtDNA Loads and Restore Oxidative Phosphorylation Function in Mitochondrial Diseases.
Molecular therapy : the journal of the American Society of Gene TherapyA typical case of myoclonic epilepsy with ragged red fibers (MERRF) and the lessons learned.
Journal of postgraduate medicineHomozygous mutations in MFN2 cause multiple symmetric lipomatosis associated with neuropathy.
Human molecular geneticsOxidative stress in inherited mitochondrial diseases.
Free radical biology & medicineProgressive Myoclonus Epilepsies.
Seminars in neurologyCharacteristic cardiac phenotypes are detected by cardiovascular magnetic resonance in patients with different clinical phenotypes and genotypes of mitochondrial myopathy.
Journal of cardiovascular magnetic resonance : official journal of the Society for Cardiovascular Magnetic ResonanceScreening of mitochondrial mutations and insertion-deletion polymorphism in gestational diabetes mellitus in the Asian Indian population.
Saudi journal of biological sciences"Myo-cardiomyopathy" is commonly associated with the A8344G "MERRF" mutation.
Journal of neurologyClinical manifestation of mitochondrial diseases.
Developmental period medicineAssociações
Organizações que acompanham esta doença — pra ter apoio e orientação
Ainda não temos associações cadastradas para MERRF.
É de uma associação que acompanha esta doença? Fale com a gente →
Comunidades
Grupos ativos de quem convive com esta doença aqui no Raras
Ainda não existe comunidade no Raras para MERRF
Pacientes, familiares e cuidadores se organizam em comunidades pra compartilhar experiências, fazer perguntas e se apoiar. Você pode ser o primeiro.
Tire suas dúvidas
Perguntas, dicas e experiências compartilhadas aqui na página
Participe da discussão
Faça login para postar dúvidas, compartilhar experiências e interagir com especialistas.
Fazer loginDoenças relacionadas
Doenças com sintomas parecidos — ajudam quem ainda está buscando diagnóstico
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.
- Progressive Myoclonic Epilepsies - A Pragmatic Review.
- EEG, clinical, and MRI features of status epilepticus associated with mitochondrial diseases.
- Mitochondrial tRNA-Derived Diseases.
- Computational design of a high-precision mitochondrial DNA cytosine base editor.
- Disease registries and rare disorders: The virtuous example of mitochondrial medicine.
- MERRF/MELAS overlap syndrome mimicking paradoxical cerebral embolism due to patent foramen ovale.
- Sequential development of three syndromes in a patient with m.3243A>G mutation: a case report.
Bases de dados e fontes oficiais
Identificadores e referências canônicas usadas para montar este verbete.
- ORPHA:551(Orphanet)
- OMIM OMIM:545000(OMIM)
- MONDO:0010790(MONDO)
- GARD:7144(GARD (NIH))
- Variantes catalogadas(ClinVar)
- Busca completa no PubMed(PubMed)
- Artigo Wikipedia(Wikipedia)
- Q1881388(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
