Qualquer tipo de ataxia espástica (uma condição que causa rigidez muscular e falta de coordenação) de herança autossômica recessiva – ou seja, a pessoa só desenvolve a doença se herdar um gene alterado de cada um dos pais – cuja causa é uma alteração (mutação) no gene MTPAP.
Introdução
O que você precisa saber de cara
Qualquer tipo de ataxia espástica (uma condição que causa rigidez muscular e falta de coordenação) de herança autossômica recessiva – ou seja, a pessoa só desenvolve a doença se herdar um gene alterado de cada um dos pais – cuja causa é uma alteração (mutação) no gene MTPAP.
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
+ 13 sintomas em outras categorias
Características mais comuns
Os sintomas variam de pessoa para pessoa. Abaixo estão as 26 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
1 gene identificado com associação a esta condição. Padrão de herança: Autosomal recessive.
Polymerase that creates the 3' poly(A) tail of mitochondrial transcripts. Can use all four nucleotides, but has higher activity with ATP and UTP (in vitro). Plays a role in replication-dependent histone mRNA degradation. May be involved in the terminal uridylation of mature histone mRNAs before their degradation is initiated. Might be responsible for the creation of some UAA stop codons which are not encoded in mtDNA
CytoplasmMitochondrion
Spastic ataxia 4, autosomal recessive
A slowly progressive neurodegenerative disease characterized by cerebellar ataxia, spastic paraparesis, dysarthria, and optic atrophy.
Medicamentos aprovados (FDA)
1 medicamento encontrado nos registros da FDA americana.
Variantes genéticas (ClinVar)
45 variantes patogênicas registradas no ClinVar.
Vias biológicas (Reactome)
1 via biológica associada 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 — Síndrome de ataxia espástica autossômica recessiva-atrofia óptica-disartria
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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
Publicações mais relevantes
Expanding the Phenotypic Spectrum of the Recurrent De Novo FBXO31 p.Asp334Asn Variant: Evidence for a Novel Neurodevelopmental Disorder (Kruer Syndrome).
Biallelic loss-of-function variants in FBXO31 cause autosomal-recessive intellectual disability. A recurrent de novo variant, c.1000G>A(p.Asp334Asn), has been described in association with an autosomal-dominant phenotype. To refine this phenotype and its clinical implications, we re-evaluated three published cases and ascertained four additional probands via advocacy networks, GeneMatcher, and clinician referral. Phenotyping included neurologic, behavioral, and dysmorphology assessment. All seven individuals carried the recurrent de novo FBXO31 p.Asp334Asn variant. A core neurodevelopmental profile was observed and included cerebral palsy (mixed hypotonia, spasticity, and dystonia), global developmental delay/intellectual disability, and speech impairment. Neuropsychiatric features were sometimes prominent and included attention-deficit/hyperactivity disorder, anxiety, stereotypies, autistic features, and behavioral dysregulation. Neuroimaging often showed a hypoplastic corpus callosum and posterior-predominant white-matter changes. In one individual, gray matter heterotopias were also observed. A subtle but consistent facial gestalt was noted. Recurrent FBXO31 p.Asp334Asn variants lead to a recognizable neurodevelopmental syndrome. Based on our findings, we recommend including FBXO31 in diagnostic algorithms for cerebral palsy and neurodevelopmental disorders. We propose the descriptive term "autosomal dominant FBXO31-associated neurodevelopmental disorder," and-consistent with the validating laboratory and with support from the FBXO31 Foundation-propose the eponym "Kruer syndrome."
Neuroradiological Phenotype Expansion of the Siddiqi Syndrome: A Case Report.
Siddiqi syndrome is a rare autosomal recessive deafness-dystonia disorder caused by pathogenic variants in the FITM2 gene. To date, only 5 unrelated families have been reported in the literature carrying loss-of-function variants in FIMT2 gene. In this report, we describe a 29-year-old woman with compound heterozygous novel variants identified by trio-based exome sequencing. She carries the paternally inherited delins variant c.158_161delinsTCAT, p.(Arg53_Asn54delinsLeuIle) and the maternally inherited frameshift variant c.567del, p.(Thr190ProfsTer9) in FITM2 gene. The patient exhibits the main features of the disease, including deafness, intellectual disability, regression of motor skills and poor overall growth. Additionally, she presents with spastic paraplegia which supports recent phenotypic expansion. We describe for the first time, novel brain magnetic resonance imaging signal alterations, not previously associated with this disorder. These neuroimaging findings may provide new insights into the neurological manifestations of Siddiqi syndrome. This case expands the phenotypic and molecular spectrum of FITM2 associated disease and emphasizes the adult-features of this syndrome. [Image: see text]
Systematic analysis of homozygous autosomal copy number losses in exomes improves diagnostic yield and uncovers ultra-rare recessive disorders.
Systematic analysis of copy number variants (CNVs) in large datasets is challenging and there are limited studies of homozygous copy number losses in rare disease exome datasets. Here we leveraged the genomic uniqueness and relative under-representation of the Indian population in the current public genomic databases and identified 42,386 possible homozygous losses (median count 20 per individual, range 0 - 55; median size 2.95 kb, range 99 bp - 4.76 Mb) in a heterogeneous cohort of 2,021 individuals with suspected Mendelian disorders, who had undergone exome sequencing using 12 different capture kits in a resource-limited setting. Employing a genomic position loss-count based approach, we filtered 1,224 rare homozygous loss calls in 718 individuals (median count 1 per individual, range 0 - 22; median size 3.49 kb, range 121 bp - 4.76 Mb) for further analysis, thus significantly reducing the analysis burden. Clinical correlation and validation of these rare calls enabled 10 new diagnoses in 240 unsolved individuals with at least one filtered rare homozygous loss call. This, led to nearly two-fold increase in diagnosis owing to homozygous deletions in our cohort. Further analysis of the data and identification of additional affected individuals through collaboration led to identification of biallelic FILIP1 and FAM177A1 variants as causes of a syndromic arthrogryposis and a neuromuscular disorder respectively. Both these conditions have been recently proven as ultra-rare recessive disorders, thus validating our approach. We also show that biallelic loss-of-function TFCP2L1 variants cause chronic kidney disease and VPS36 variants cause a severe recessive neurodevelopmental disorder characterised by microcephaly, motor delay, agenesis of the corpus callosum, cerebellar atrophy, seizures, hypotonia, spasticity and early death. Overall, these results demonstrate a scalable approach to screen homozygous losses for improving diagnostic yield and discovering disease-genes in large exome cohorts.
Nerve Ultrasound in Pediatric Polyneuropathies: A Systematic Review.
The diagnosis of peripheral polyneuropathy in children and the differential diagnosis among its various forms often present a challenge, also because electrodiagnostic studies can be painful and sometimes yield inconclusive results. This systematic review examines the role of nerve ultrasound (n-US) in the diagnosis and follow-up of pediatric polyneuropathies. We searched PubMed and Embase from 1975 to April 1, 2025. Included studies assessed patients aged ≤ 18 years with clinically and neurophysiologically confirmed polyneuropathy, providing pediatric-specific qualitative or quantitative n-US findings. Eighteen studies met the inclusion criteria. Six focused on acquired inflammatory polyneuropathies (three on Guillain-Barré Syndrome [GBS], three on Chronic Inflammatory Demyelinating Polyneuropathy [CIDP]), eight on Charcot-Marie-Tooth disease (CMT), two on lysosomal storage disorders, one on Autosomal Recessive Spastic Ataxia of Charlevoix-Saguenay (ARSACS), and one on mixed etiologies. Most (n = 7) were case reports. Cross-sectional area and nerve enlargement (NE) distribution were the main parameters evaluated. Marked, diffuse NE was found in demyelinating CMT and lysosomal disorders; CIDP showed diffuse and multifocal NE; GBS presented mild and proximal NE. No NE was reported in axonal CMT or ARSACS. Few studies assessed echogenicity or fascicular structure; none evaluated vascularization. n-US shows promise in differentiating demyelinating conditions such as CMT, CIDP, GBS, and certain metabolic syndromes in children. However, further age-matched control studies are needed, given that nerve growth and myelination peak between 15 and 17 years. Future research should explore n-US as an early diagnostic, screening, and follow-up tool.
Clinical, Radiological, and Genetic Profile of Patients with FA2H-Associated Neurodegeneration: Eight Cases from India and a Review of the Literature.
Autosomal recessive spastic paraplegia 35 (SPG35), also known as Fatty acid hydroxylase-associated neurodegeneration (FAHN), is a rare recessive neurodegenerative disorder with or without ataxia, dystonia, and other neurological findings. It is caused by genetic variants in FA2H, which encodes fatty acid 2-hydroxylase. To report the clinical, electrophysiological, radiological, and genetic profile of patients diagnosed with FAHN. We performed a retrospective chart review of genetically proven cases of FAHN from our database. We identified eight patients (6 females) with genetically proven FAHN. All patients presented with first-decade onset pyramidal syndrome with or without ataxia and with radiological findings of callosal atrophy, peri-ventricular white matter hyperintensity, and cerebellar atrophy. Iron accumulation was observed in four of them. Whole exome sequencing revealed seven unique variants including three missense variants (c.83G>C;p.Arg28Pro, c.130C>A;p.Pro44Thr, and c.703C>T;p.Arg235Cys), a stop-gain variant (c.379C>T;p.Arg127Ter), a frameshift deletion variant (c.536delT;p.Leu179Argfs*62), a in-frame deletion variant (c.200_202del;p.His67del) and a in-frame duplication variant (c.86_97dup;p.Arg29_Arg32dup). The variants p.Pro44Thr, p.Arg28Pro, p.Arg29_Arg32dup, and p.His67del are located in the iron-binding region, and the p.Arg235Cys in the hydroxylase domain. The other two variants, p.Arg127Ter and p.Leu179Argfs*62, predictively cause protein truncation, leading to loss of the transmembrane domain and the fatty acid hydroxylase domain, which in turn may result in disruption of fatty acid alpha-hydroxylase activity of FA2H. Our study identifies novel variants associated with FA2H in FAHN patients, highlighting their possible roles in iron binding and in the loss of the transmembrane and catalytic domains. PTS-related tetrahydrobiopterin deficiency (PTPSD) results in a lack of tetrahydropterin, an important cofactor for phenylalanine hydroxylase (PAH), tyrosine hydroxylase, and tryptophan hydroxylase. Deficiency can thus lead to neurotransmitter and neuropsychiatric disorders. The clinical spectrum of PTPSD is broad and differs according to age of onset, severity of disease, and whether preventative therapies were initiated and maintained from an early age. In the severe form, clinical symptoms may become apparent in the neonatal period and can include hypotonia, movement disorders, abnormal eye movements, autonomic dysregulation, and impaired development. Without treatment, developmental delays become more marked. Neurologic symptoms (dysarthria, dystonia, tremors, abnormal gait, parkinsonism, oculogyric crises, motor tics) may be ameliorated by treatment with sapropterin dihydrochloride and neurotransmitter precursors. Other features of the condition can include psychiatric comorbidities (ADHD, anxiety, depression), infant feeding difficulties leading to early growth failure, hyperprolactinemia, growth hormone deficiency, sleep issues, and autonomic dysfunction; many of these features can be ameliorated by appropriate treatment. In treated individuals, development often improves during adolescence, with many adults having a normal IQ level. In the mild (peripheral) form, affected individuals are usually asymptomatic apart from an increase in phenylalanine (Phe) levels. Some remain asymptomatic. However, with time, some have mild developmental delays and can develop deficiency of neurotransmitter production, such that treatment of some asymptomatic individuals may be required. The biochemical diagnosis of PTPSD is established in a proband with confirmed hyperphenylalaninemia, elevated neopterin levels, reduced biopterin levels, and a decreased biopterin-to-neopterin ratio in urine or dried blood spots (DBS) and normal dihydropteridine reductase (DHPR) activity in DBS. The molecular diagnosis of PTPSD is established in a proband by identification of biallelic pathogenic (or likely pathogenic) variants in PTS by molecular genetic testing. Targeted therapies: Immediate therapy with sapropterin (tetrahydrobiopterin dihydrochloride; BH4), a cofactor/cosubstrate of PAH, is recommended to reduce blood Phe concentrations in individuals with hyperphenylalaninemia. If sapropterin is not available, dietary Phe restriction should be implemented. Because sapropterin has limited access to the central nervous system (CNS), or rather, this access is only achieved at high doses, therapy with sapropterin does not normalize the activity of tyrosine or tryptophan hydroxylase in people with PTPSD. Additional treatment strategies are necessary for long-term management and may include the use of neurotransmitter precursors (levodopa plus decarboxylase inhibitor (DCI), i.e., carbidopa or benserazide), 5-hydroxytryptophan, and/or dopamine (rotigotine patch, pramipexole) and/or serotonin agonists, or other medications (MAO inhibitors such as selegiline) to address specific neurotransmitter deficiencies and maintain optimal neurologic function. Supportive care: Optimization of dosage and intervals of levodopa/DCI in those with abnormal movements/parkinsonism; growth hormone supplementation and/or optimization of neurotransmitter precursor therapy for growth hormone deficiency; optimization of neurotransmitter precursor therapy for recurrent hyperthermia; anticholinergic treatment may be considered for hypersalivation; standard treatment for developmental delay, spasticity, epilepsy, sleep disorders, and decreased bone mineral density. Biochemical surveillance: Routine Phe monitoring in infants (age <1 year) weekly until normalized and then every three to six months once levels normalize; every six months in children younger than age 12 years; and every six to 12 months in adolescents and adults; the Phe target ranges correspond to those of PAH deficiency. Prolactin level at each visit. Routine clinical visits with a metabolic specialist (and metabolic dietician if on Phe-restricted diet) every one to three months in infants (age <1 year), every three to six months between ages one and seven years, and every six to 12 months in those age eight years and older. General surveillance: At each visit, measure growth parameters and evaluate nutritional status; asses for new neurologic manifestations (changes in tone, seizures, movement disorders); monitor developmental progress and assess educational needs; monitor for behavioral issues (anxiety, ADHD, emotional dysregulation, depression, aggression); and assess for signs and symptoms of sleep disorders. At ages two, six, 12, and 18 years, consider neuropsychological evaluation. In adulthood, periodic parathormone levels and DXA scan. As needed, consider EEG to differentiate from movement disorder seizures. Agents/circumstances to avoid: Persons with PTPSD on Phe-reduced diet should either avoid products containing aspartame or calculate total intake of Phe when using such products and adapt diet components accordingly. Evaluation of relatives at risk: If prenatal genetic testing has not been performed, each at-risk newborn sib should be evaluated immediately (at or just after 24 hours) after birth for PTPSD using measurement of blood Phe concentration to allow for earliest possible diagnosis and treatment. If older sibs have not undergone NBS or genetic testing for the known familial pathogenic variants in PTS, measure blood Phe concentrations to clarify their disease status. Pregnancy management: Women with PTPSD who have received appropriate treatment throughout childhood and adolescence and during pregnancy may have offspring with normal intellectual and behavioral development, particularly if levels of Phe are kept in the normal range during pregnancy. Intensive clinical and biochemical supervision by a multidisciplinary team before, during, and after pregnancy in a woman with PTPSD is essential to control the symptoms of the disease, adjust the treatment if needed, and monitor the development of the fetus. If the affected woman has elevated blood Phe concentrations during pregnancy, the fetus is at high risk for maternal phenylketonuria (MPKU) syndrome (reported specifically in women who have PAH deficiency as the primary cause of their elevated Phe levels), including malformations and intellectual disability, since Phe is a potent teratogen. PTPSD is inherited in an autosomal recessive manner. If both parents are known to be heterozygous for a PTS pathogenic variant, each sib of an affected individual has at conception a 25% chance of being affected, a 50% chance of being an asymptomatic carrier, and a 25% chance of inheriting neither of the familial PTS pathogenic variants. Children born of one parent with PTPSD and one parent with two normal PTS alleles are obligate heterozygotes. If the mother is the affected parent, MPKU syndrome is a critical issue. Females with PTPSD should receive counseling regarding the teratogenic effects of elevated maternal plasma Phe concentration (i.e., MPKU syndrome) when they reach childbearing age. Once the PTS pathogenic variants have been identified in an affected family member, carrier testing for at-risk relatives and prenatal/preimplantation genetic testing for PTPSD are possible.
Publicações recentes
Novel SACS mutation in a Belgian family with sacsin-related ataxia.
An unusual case of a spasticity-lacking phenotype with a novel SACS mutation.
Location score and haplotype analyses of the locus for autosomal recessive spastic ataxia of Charlevoix-Saguenay, in chromosome region 13q11.
Clinical and molecular genetic studies on autosomal recessive spastic ataxia of Charlevoix-Saguenay (ARSACS).
Computed tomography of posterior fossa in hereditary ataxias.
📚 EuropePMCmostrando 199
Expanding the Phenotypic Spectrum of the Recurrent De Novo FBXO31 p.Asp334Asn Variant: Evidence for a Novel Neurodevelopmental Disorder (Kruer Syndrome).
Clinical geneticsClinical, Radiological, and Genetic Profile of Patients with FA2H-Associated Neurodegeneration: Eight Cases from India and a Review of the Literature.
Tremor and other hyperkinetic movements (New York, N.Y.)Neuroradiological Phenotype Expansion of the Siddiqi Syndrome: A Case Report.
Cellular and molecular neurobiologyThe Cerebellar Cognitive-Affective Syndrome Scale Reveals Consistent, Early, and Progressive Neuropsychological Deficits in Autosomal-Recessive Spastic Ataxia of Charlevoix-Saguenay: A Large International Cross-Sectional Study.
Movement disorders : official journal of the Movement Disorder SocietySystematic analysis of homozygous autosomal copy number losses in exomes improves diagnostic yield and uncovers ultra-rare recessive disorders.
medRxiv : the preprint server for health sciencesThe genetics of autosomal recessive ALS: a review of the common forms and their phenotypes.
Amyotrophic lateral sclerosis & frontotemporal degenerationMultiple Mitochondrial Dysfunction Syndrome Caused by IBA57 Gene Mutation: A Case Report and Literature Review.
Molecular genetics & genomic medicineWebb-Dattani syndrome in a 17-year-old girl.
Endocrinology, diabetes & metabolism case reportsDeciphering Spastic Ataxia: Clinical and Genetic Profiles.
Neurology. GeneticsUSP18 gene mutation associated with recurrent encephalopathy, intracranial calcification, and microcephaly: case report, long-term follow-up, and literature review.
Clinical dysmorphologyNerve Ultrasound in Pediatric Polyneuropathies: A Systematic Review.
NeuropediatricsTeaching NeuroImage: Autosomal Recessive Spastic Ataxia of Charlevoix-Saguenay Syndrome: The Diagnostic Value of Structural MRI and Diffusion Tensor Imaging Biomarkers.
NeurologySPOAN Syndrome in Southern Brazil: Case Report and New Insights.
Movement disorders clinical practiceKohlschütter-Tönz Syndrome: A Rare Clinical Entity with Amelogenesis Imperfecta in Two Siblings, Dental Management and Scoping Review.
Turkish archives of pediatricsPearls & Oy-sters: Adult-Onset Coats Plus: A Case of Leukoencephalopathy With Calcifications, a Tumefactive Brain Lesion, and a Presumed Autoimmune Disease.
Neurology"Deep Brain Stimulation of the Ventral Intermediate Nucleus of the Thalamus for Tremor in Polr3a-Related Tremor-ataxia Syndrome: A Two-case Report".
Tremor and other hyperkinetic movements (New York, N.Y.)Unravelling neurodegeneration with cerebral calcifications: Krabbe disease masquerading as Aicardi-Goutieres syndrome.
BMJ case reportsClinical and genetic analysis of ERCC8-Related cockayne syndrome: hepatic dysfunction as a biomarker, anhidrosis as a rare feature, and rehabilitation outcomes for ankle contractures.
Frontiers in geneticsUncommon Allies: Van der Knaap Syndrome and Focal Segmental Glomerulosclerosis.
The Journal of the Association of Physicians of IndiaExpanding the Epidemiological and Phenotypic Spectrum of MEGDEL Syndrome: The First Case Report From Egypt.
Clinical medicine insights. PediatricsCase Report: Novel ATP13A2 pathogenic variants associated with early-onset parkinsonism and a mini-review.
Frontiers in geneticsYield of Whole Exome Sequencing in Children With Cryptogenic Cerebral Palsy.
Pediatric neurologyMaternal uniparental isodisomy in a patient with autosomal recessive spastic paraplegia type 20.
GeneFrench guidelines for the diagnosis and management of pure hereditary spastic paraplegia.
Revue neurologiqueUltra-Widefield Swept-Source OCTA Findings in Coats Plus Syndrome.
Ophthalmic surgery, lasers & imaging retinaExpanding the spectrum of ATP8A2 mutations: a new splicing variant and systematic review of CAMRQ4 syndrome.
Molecular biology reportsA Case Report of a Child With Rare Phosphatidylinositol Glycan Anchor Biosynthesis Class N (PIGN) Gene Mutation With Hypotonia, Epilepsy, and Global Developmental Delay.
CureusA case series of nine patients with cerebrotendinous xanthomatosis from India and a systematized review of Indian literature.
Parkinsonism & related disordersOculodentodigital Dysplasia Presenting as Spastic Ataxic Syndrome in an Indian Patient.
Annals of Indian Academy of NeurologyBlended phenotype of TECPR2-associated hereditary sensory-autonomic neuropathy and Temple syndrome.
Annals of clinical and translational neurologyCerebrotendinous xanthomatosis: A complex interplay between a clinically and genetically heterogeneous condition.
European journal of neurology[A case of rare hereditary Siddiqi syndrome with novel neuropsychiatric signs].
Zhurnal nevrologii i psikhiatrii imeni S.S. KorsakovaFrom spastic paraplegia to infantile neurodegenerative disorder: Expanding the phenotypic spectrum associated with biallelic SPAST variants.
European journal of neurologySTUB1-Associated Autosomal-Recessive Spinocerebellar Ataxia Type 16 (SCAR16) Presenting with Gordon-Holmes Syndrome Caused by Maternal Uniparental Isodisomy.
Movement disorders clinical practiceAccumulation of ether phospholipids in induced pluripotent stem cells and oligodendrocyte-lineage cells established from patients with Sjögren-Larsson syndrome.
Congenital anomaliesIdentification of biallelic POLA2 variants in two families with an autosomal recessive telomere biology disorder.
European journal of human genetics : EJHGA novel missense mutation in ISCA2 causes aberrant splicing and leads to multiple mitochondrial dysfunctions syndrome 4.
Frontiers in psychiatryInherited white matter disorders: Hypomyelination (myelin disorders).
Handbook of clinical neurologyNovel autosomal recessive SINO syndrome-associated KIDINS220 variants provide insight into the genotype-phenotype correlation.
HeliyonBiallelic PTPMT1 variants disrupt cardiolipin metabolism and lead to a neurodevelopmental syndrome.
Brain : a journal of neurologySpectrum of Leukodystrophy and Genetic Leukoencephalopathy in Indian Population Diagnosed by Clinical Exome Sequencing and Clinical Utility.
Neurology. GeneticsCanine RNF170 Single Base Deletion in a Naturally Occurring Model for Human Neuroaxonal Dystrophy.
Movement disorders : official journal of the Movement Disorder SocietyRefining the phenotype of SINO syndrome: A comprehensive cohort report of 14 novel cases.
Genetics in medicine : official journal of the American College of Medical GeneticsPhenotypic variability related to dominant UCHL1 mutations: about three families with optic atrophy and ataxia.
Journal of neurologyPostoperative hyperammonemic encephalopathy due to unexpected constipation in a patient with hyperornithinemia-hyperammonemia-homocitrullinuria syndrome: a case report.
JA clinical reportsAutosomal Recessive Spastic Paraplegia and Psychomotor Retardation With or Without Seizures: A Case Report From Saudi Arabia.
CureusSpondyloenchondrodysplasia With Immune Dysregulation, but Without Skeletal Dysplasia, in a Six-Year-Old Boy: A Case Report.
CureusCase report: Early-onset Parkinson's disease with lower limb spasticity in a new DJ-1/PARK7 patient.
Frontiers in neuroscienceA Missense Variant in HACE1 Is Associated with Intellectual Disability, Epilepsy, Spasticity, and Psychomotor Impairment in a Pakistani Kindred.
GenesAn Ultra-Rare Mixed Phenotype with Combined AP-4 and ERF Mutations: The First Report in a Pediatric Patient and a Literature Review.
GenesSegawa Syndrome, a Dramatic Response to Dopamine.
Case reports in neurological medicineCompound heterozygous mutations in three Chinese patients of Segawa syndrome and their treatment outcomes.
International journal of developmental neuroscience : the official journal of the International Society for Developmental NeuroscienceRTN2 deficiency results in an autosomal recessive distal motor neuropathy with lower limb spasticity.
Brain : a journal of neurologyHereditary spastic paraparesis type 18 (SPG18): new ERLIN2 variants in a series of Italian patients, shedding light upon genetic and phenotypic variability.
Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical NeurophysiologyExpanding the genetic and phenotypic spectrum of congenital myasthenic syndrome: new homozygous VAMP1 splicing variants in 2 novel individuals.
Journal of human geneticsHereditary spastic paraparesis type 46 (SPG46): new GBA2 variants in a large Italian case series and review of the literature.
NeurogeneticsPCYT2 deficiency in Saarlooswolfdogs with progressive retinal, central, and peripheral neurodegeneration.
Molecular genetics and metabolismDelayed Diagnosis of Perrault Syndrome: A Rare Genetic Disorder.
Case reports in medicineNovel loss-of-function variants expand ABCC9-related intellectual disability and myopathy syndrome.
Brain : a journal of neurologySpartin-mediated lipid transfer facilitates lipid droplet turnover.
Proceedings of the National Academy of Sciences of the United States of AmericaThe Rogdi knockout mouse is a model for Kohlschütter-Tönz syndrome.
Scientific reportsVestibular Hypofunction in ARSACS Syndrome: A Possible Pitfall in the Differential Diagnosis of Recessive Cerebellar and Afferent Ataxias.
Neurology. Clinical practiceNovel Homozygous Variants of SLC13A5 Expand the Functional Heterogeneity of a Homogeneous Syndrome of Early Infantile Epileptic Encephalopathy.
Pediatric neurologyGRM7-related disorder: five additional patients from three independent families and review of the literature.
European journal of medical geneticsPanoramic variation analysis of a family with neurodevelopmental disorders caused by biallelic loss-of-function variants in TMEM141, DDHD2, and LHFPL5.
Frontiers of medicineSjogren-Larsson syndrome brain volumetric reductions demonstrated with an automated software.
Arquivos de neuro-psiquiatriaThe hereditary spastic paraplegias.
Handbook of clinical neurologyBiallelic MED27 variants lead to variable ponto-cerebello-lental degeneration with movement disorders.
Brain : a journal of neurologyThe Troyer syndrome protein spartin mediates selective autophagy of lipid droplets.
Nature cell biologyThe first reports of FA2H-associated neurodegeneration from two unrelated Iranian families.
Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical NeurophysiologyChediak-Higashi syndrome.
Current opinion in hematologyExpanding the Knowledge of KIF1A-Dependent Disorders to a Group of Polish Patients.
GenesEnd-stage crystalline maculopathy with retinal atrophy in Sjögren-Larsson syndrome: a case report and review of the literature.
Therapeutic advances in rare diseaseThe Gross, Fine, and Oral Motor Functions in a Patient with Megalencephalic Leukoencephalopathy with Subcortical Cyst: A Case Report.
Iranian journal of child neurologySjögren-Larsson Syndrome: A Rare Presentation With Developmental Delay.
CureusNovel, homozygous RAB3GAP1 c.2606 + 1G>A, p.Glu830ValfsTer9 variant and chromosome 3q29 duplication in a Turkish individual with Warburg micro syndrome.
Clinical dysmorphologyTELO2-related syndrome (You-Hoover-Fong syndrome): Description of 14 new affected individuals and review of the literature.
American journal of medical genetics. Part AThe clinical and genetic spectrum of autosomal-recessive TOR1A-related disorders.
Brain : a journal of neurologyEarly arteriopathy in Aicardi-Goutières syndrome 5. Case report and review of literature.
The neuroradiology journalPre- and Postnatal Characterization of Autosomal Recessive KIDINS220-Associated Ventriculomegaly.
Molecular syndromologyWhole-Exome Sequencing and Copy Number Analysis in a Patient with Warburg Micro Syndrome.
GenesPreviously Undescribed Gross HACE1 Deletions as a Cause of Autosomal Recessive Spastic Paraplegia.
GenesBlended Phenotype of Prader-Willi Syndrome and HSP-SPG11 Caused by Maternal Uniparental Isodisomy.
Neurology. GeneticsClinical heterogeneity of hyperornithinemia-hyperammonemia-homocitrullinuria syndrome in thirteen palestinian patients and report of a novel variant in the SLC25A15 gene.
Frontiers in geneticsAutosomal Recessive Spastic Ataxia of Charlevoix-Saguenay due to Novel Mutations in the SACS Gene.
Journal of investigative medicine high impact case reportsPutative founder effect of Arg338* AP4M1 (SPG50) variant causing severe intellectual disability, epilepsy and spastic paraplegia: Report of three families.
Clinical geneticsClinical and genetic analyses in syndromic intellectual disability with primary microcephaly reveal biallelic and de novo variants in patients with parental consanguinity.
Genes & genomicsExpanding SPG7 dominant optic atrophy phenotype: Infantile nystagmus and optic atrophy without spastic paraplegia.
American journal of medical genetics. Part ABardet-Biedl Syndrome: A Rare Case From Ophthalmology Perspective.
CureusKjellin's syndrome: Spastic paraplegia and multifocal pattern dystrophy simulating fundus flavimaculatus.
Archivos de la Sociedad Espanola de OftalmologiaA Case Report and Literature Review of Pseudo-TORCH Syndrome Type 2 (PTORCH2).
Case reports in pediatricsSpastic paraplegia 51: phenotypic spectrum related to novel homozygous AP4E1 mutation.
Journal of geneticsThe perinatal phenotype of Troyer syndrome: Case report and literature review.
American journal of medical genetics. Part ACase report: Huppke-Brendel syndrome in an adult, mistaken for and treated as Wilson disease for 25 years.
Frontiers in neurologyCutaneous squamous cell carcinoma in an autosomal-recessive Adams-Oliver syndrome patient with a novel frameshift pathogenic variant in the EOGT gene.
American journal of medical genetics. Part ATRIT1 defect leads to a recognizable phenotype of myoclonic epilepsy, speech delay, strabismus, progressive spasticity, and normal lactate levels.
Journal of inherited metabolic diseasePatient-Derived iPSCs Reveal Evidence of Telomere Instability and DNA Repair Deficiency in Coats Plus Syndrome.
GenesA PNPLA8 frameshift variant in Australian shepherd dogs with hereditary ataxia.
Animal geneticsPSMC1 variant causes a novel neurological syndrome.
Clinical geneticsNovel EPG5 Mutation Associated with Vici Syndrome Gene.
Case reports in geneticsBi-allelic loss-of-function variants in PPFIBP1 cause a neurodevelopmental disorder with microcephaly, epilepsy, and periventricular calcifications.
American journal of human geneticsAdult-Onset Neurodegeneration in Nucleotide Excision Repair Disorders (NERDND ): Time to Move Beyond the Skin.
Movement disorders : official journal of the Movement Disorder SocietyMethylation Heterogeneity and Gene Expression of SPG20 in Solid Tumors.
GenesCompound Heterozygous Mutations Presented with Quadriparesis and Menopause. A Case Report.
Twin research and human genetics : the official journal of the International Society for Twin StudiesCoats plus in prematurity.
Ophthalmic geneticsNovel RETREG1 (FAM134B) founder allele is linked to HSAN2B and renal disease in a Turkish family.
American journal of medical genetics. Part AMolecular Characterization of Portuguese Patients with Hereditary Cerebellar Ataxia.
CellsEl-Hattab-Alkuraya syndrome caused by biallelic WDR45B pathogenic variants: Further delineation of the phenotype and genotype.
Clinical geneticsAutosomal Recessive Cerebellar Atrophy and Spastic Ataxia in Patients With Pathogenic Biallelic Variants in GEMIN5.
Frontiers in cell and developmental biologyCoats Plus syndrome: a diagnostic and therapeutic challenge in pediatric gastrointestinal hemorrhage.
The Turkish journal of pediatricsCoats plus syndrome: a rare cause of severe gastrointestinal tract bleeding in children - a case report.
BMC pediatricsMolybdenum cofactor deficiency: A natural history.
Journal of inherited metabolic diseaseClinical, neuroradiological, and molecular characterization of patients with atypical Zellweger spectrum disorder caused by PEX16 mutations: a case series.
NeurogeneticsFamily planning decisional needs assessment for recessive hereditary disorders: Insights from carrier couples and professionals.
Patient education and counselingIdentification of novel mutations by targeted NGS in Moroccan families clinically diagnosed with a neuromuscular disorder.
Clinica chimica acta; international journal of clinical chemistryPrimary Ovarian Failure in Addition to Classical Clinical Features of Coats Plus Syndrome in a Female Carrying 2 Truncating Variants of CTC1.
Hormone research in paediatricsThree Adult-Onset Autosomal Recessive Ataxias: What Adult Neurologists Need to Know.
Neurology. Clinical practiceIdentification of two novel homozygous mutations in ERCC8 gene in two unrelated consanguineous families with Cockayne syndrome from Iran.
Clinica chimica acta; international journal of clinical chemistryPallidal degenerations and related disorders: an update.
Journal of neural transmission (Vienna, Austria : 1996)Incidental Finding of MEGDEL Syndrome Based on Neuroimaging: Case Report.
Case reports in neurologySpastic paraplegia type 46: novel and recurrent GBA2 gene variants in a compound heterozygous Italian patient with spastic ataxia phenotype.
Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical NeurophysiologyNovel compound heterozygous STN1 variants are associated with Coats Plus syndrome.
Molecular genetics & genomic medicine[Aicardi-Goutieres syndrome: a family case due to alteration of the RNASEH2B gene].
Revista de neurologiaCognitive dysfunction and psychosis: expanding the phenotype of SPG7.
NeurocaseBiallelic variants in HPDL cause pure and complicated hereditary spastic paraplegia.
Brain : a journal of neurologyGenetics of primary lateral sclerosis.
Amyotrophic lateral sclerosis & frontotemporal degenerationWhole exome sequencing uncovered highly penetrant recessive mutations for a spectrum of rare genetic pediatric diseases in Bangladesh.
NPJ genomic medicineWiedemann-Rautenstrauch syndrome in an Indian patient with biallelic pathogenic variants in POLR3A.
American journal of medical genetics. Part ABlended Phenotype of Silver-Russell Syndrome and SPG50 Caused by Maternal Isodisomy of Chromosome 7.
Neurology. GeneticsThe Downregulation of c19orf12 Negatively Affects Neuronal and Musculature Development in Zebrafish Embryos.
Frontiers in cell and developmental biologyAdult polyglucosan body disease: an acute presentation leading to unmasking of this rare disorder.
Hospital practice (1995)Congenital cervical spine malformation due to bi-allelic RIPPLY2 variants in spondylocostal dysostosis type 6.
Clinical geneticsSuccessful liver transplantation in hyperornithinemia-hyperammonemia-homocitrullinuria syndrome: Case report.
Pediatric transplantationA novel PNPLA6 mutation in a Turkish family with intractable Holmes tremor and spastic ataxia.
Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical NeurophysiologyIdentification of a novel mutation in ATP13A2 associated with a complicated form of hereditary spastic paraplegia.
Neurology. GeneticsLessons learned from surgical management of craniovertebral instability in Morquio syndrome: A series of four unusual cases.
Journal of craniovertebral junction & spineNovel mutations in ATP13A2 associated with mixed neurological presentations and iron toxicity due to nonsense-mediated decay.
Brain researchClinical Features and Molecular Genetics of Autosomal Recessive Ataxia in the Turkish Population.
Journal of pediatric neurosciencesSjogren-Larsson Syndrome: A case series of five members from an extended family with a novel mutation.
Molecular genetics & genomic medicineA genetic mimic of cerebral palsy: Homozygous NFU1 mutation with marked intrafamilial phenotypic variation.
Brain & developmentBi-allelic HPDL Variants Cause a Neurodegenerative Disease Ranging from Neonatal Encephalopathy to Adolescent-Onset Spastic Paraplegia.
American journal of human geneticsA novel missense mutation (c.1006C>T) of SPG20 gene associated with Troyer syndrome.
Journal of geneticsPyrostigmine therapy in a patient with VAMP1-related congenital myasthenic syndrome.
Neuromuscular disorders : NMDWarburg Micro Syndrome 1 due to Segmental Paternal Uniparental Isodisomy of Chromosome 2 Detected by Whole-Exome Sequencing and Homozygosity Mapping.
Cytogenetic and genome researchProphylactic Decompression for Cervical Stenosis in Jeune Syndrome: Report From a Single Institution.
SpineDegeneration of dopaminergic neurons and impaired intracellular trafficking in Atp13a2 deficient zebrafish.
IBRO reportsExpanding the genotype-phenotype spectrum of ISCA2-related multiple mitochondrial dysfunction syndrome-cavitating leukoencephalopathy and prolonged survival.
NeurogeneticsSpinocerebellar ataxia type 48: last but not least.
Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical NeurophysiologyA novel compound heterozygous missense mutation in ASNS broadens the spectrum of asparagine synthetase deficiency.
Molecular genetics & genomic medicineClinical and genetic aspects of hereditary spastic paraplegia in patients from Turkey.
Neurologia i neurochirurgia polskaExpanding the clinical and genetic heterogeneity of SPAX5.
Annals of clinical and translational neurologyMartsolf syndrome with novel mutation in the TBC1D20 gene in a family from Iran.
American journal of medical genetics. Part AThe FTS-Hook-FHIP (FHF) complex interacts with AP-4 to mediate perinuclear distribution of AP-4 and its cargo ATG9A.
Molecular biology of the cellSjogren-Larsson Syndrome: Mechanisms and Management.
The application of clinical geneticsΔ1 -Pyrroline-5-carboxylate synthetase deficiency: An emergent multifaceted urea cycle-related disorder.
Journal of inherited metabolic diseaseCompound heterozygous mutations in the ALDH3A2 gene cause Sjögren-Larsson syndrome: a case report.
The International journal of neuroscienceVPS13D-related disorders presenting as a pure and complicated form of hereditary spastic paraplegia.
Molecular genetics & genomic medicineAn update on clinical, pathological, diagnostic, and therapeutic perspectives of childhood leukodystrophies.
Expert review of neurotherapeuticsLong-term follow-up until early adulthood in autosomal dominant, complex SPG30 with a novel KIF1A variant: a case report.
Italian journal of pediatricsCompound heterozygous mutations in SNAP29 is associated with Pelizaeus-Merzbacher-like disorder (PMLD).
Human geneticsMotor impairment in a rare form of spastic paraplegia (Spoan syndrome): a 10-year follow-up.
BMC neurologyPeter Plus Syndrome: A Neurosurgeon's Perspective.
Journal of pediatric neurosciencesClinical and ultrastructural findings in an ataxic variant of Kufor-Rakeb syndrome.
Folia neuropathologica[Infant with intracranial calcifications and retinopathy].
Revista de neurologiaDwarfism in Troyer syndrome: a family with SPG20 compound heterozygous mutations and a literature review.
Annals of the New York Academy of SciencesSyndromic progressive neurodegenerative disease of infancy caused by novel variants in HIBCH: Report of two cases in Colombia.
Intractable & rare diseases researchGPT2 mutations in autosomal recessive developmental disability: extending the clinical phenotype and population prevalence estimates.
Human geneticsNovel mutations of the POLR3A gene caused POLR3-related leukodystrophy in a Chinese family: a case report.
BMC pediatricsPhenotype and mutation expansion of the PTPN23 associated disorder characterized by neurodevelopmental delay and structural brain abnormalities.
European journal of human genetics : EJHGGenetic assessment of ten Egyptian patients with Sjögren-Larsson syndrome: expanding the clinical spectrum and reporting a novel ALDH3A2 mutation.
Archives of dermatological researchCAPN1 Variants as Cause of Hereditary Spastic Paraplegia Type 76.
Case reports in neurological medicineWoodhouse-Sakati Syndrome: First report of a Portuguese case.
American journal of medical genetics. Part AAutosomal recessive cerebellar ataxia with spasticity due to a rare mutation in GBA2 gene in a large consanguineous Saudi family.
Genes & diseasesRevealing the functions of novel mutations in RAB3GAP1 in Martsolf and Warburg micro syndromes.
American journal of medical genetics. Part ASpecies-specific differences in nonlysosomal glucosylceramidase GBA2 function underlie locomotor dysfunction arising from loss-of-function mutations.
The Journal of biological chemistryDaily Functioning and Quality of Life in Patients with Sjögren-Larsson Syndrome.
NeuropediatricsThe novel de novo mutation of KIF1A gene as the cause for Spastic paraplegia 30 in a Japanese case.
eNeurologicalSciGPR126: A novel candidate gene implicated in autosomal recessive intellectual disability.
American journal of medical genetics. Part AANO10 mutational screening in recessive ataxia: genetic findings and refinement of the clinical phenotype.
Journal of neurologySEC31A mutation affects ER homeostasis, causing a neurological syndrome.
Journal of medical geneticsSACS variants are a relevant cause of autosomal recessive hereditary motor and sensory neuropathy.
Human geneticsGenotype and phenotype variability in Sjögren-Larsson syndrome.
Human mutationBiochemical Characterization of the GBA2 c.1780G>C Missense Mutation in Lymphoblastoid Cells from Patients with Spastic Ataxia.
International journal of molecular sciencesConcurrent AFG3L2 and SPG7 mutations associated with syndromic parkinsonism and optic atrophy with aberrant OPA1 processing and mitochondrial network fragmentation.
Human mutationIs PNPT1-related hearing loss ever non-syndromic? Whole exome sequencing of adult siblings expands the natural history of PNPT1-related disorders.
American journal of medical genetics. Part ALoss of Protocadherin-12 Leads to Diencephalic-Mesencephalic Junction Dysplasia Syndrome.
Annals of neurologyPrevalence and phenotype of the c.1529C>T SPG7 variant in adult-onset cerebellar ataxia in Italy.
European journal of neurologyKufor-Rakeb Syndrome/PARK9: One Novel and One Possible Recurring Ashkenazi ATP13A2 Mutation.
Journal of Parkinson's disease[Hereditary optic neuropathies in pediatric ophthalmology].
Journal francais d'ophtalmologieTLE1, a key player in neurogenesis, a new candidate gene for autosomal recessive postnatal microcephaly.
European journal of medical geneticsAltered distribution of ATG9A and accumulation of axonal aggregates in neurons from a mouse model of AP-4 deficiency syndrome.
PLoS geneticsNovel homozygous GBA2 mutation in a patient with complicated spastic paraplegia.
Clinical neurology and neurosurgeryA novel homozygous AP4B1 mutation in two brothers with AP-4 deficiency syndrome and ocular anomalies.
American journal of medical genetics. Part ABiallelic CHP1 mutation causes human autosomal recessive ataxia by impairing NHE1 function.
Neurology. GeneticsPRUNE Syndrome Is a New Neurodevelopmental Disorder: Report and Review.
Child neurology openSjögren-Larsson syndrome: definitive diagnosis on magnetic resonance spectroscopy.
CutisAction Myoclonus and Seizure in Kufor-Rakeb Syndrome.
Movement disorders clinical practiceDifferent Cerebellar Ataxia Phenotypes Associated with Mutations of the PNPLA6 Gene in Brazilian Patients with Recessive Ataxias.
Cerebellum (London, England)Novel mutations and a severe neurological phenotype in Sjögren-Larsson syndrome patients from Iran.
European journal of medical geneticsAssociações
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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.
- Expanding the Phenotypic Spectrum of the Recurrent De Novo FBXO31 p.Asp334Asn Variant: Evidence for a Novel Neurodevelopmental Disorder (Kruer Syndrome).
- Neuroradiological Phenotype Expansion of the Siddiqi Syndrome: A Case Report.
- Systematic analysis of homozygous autosomal copy number losses in exomes improves diagnostic yield and uncovers ultra-rare recessive disorders.
- Nerve Ultrasound in Pediatric Polyneuropathies: A Systematic Review.
- Clinical, Radiological, and Genetic Profile of Patients with FA2H-Associated Neurodegeneration: Eight Cases from India and a Review of the Literature.
- Novel SACS mutation in a Belgian family with sacsin-related ataxia.
- An unusual case of a spasticity-lacking phenotype with a novel SACS mutation.
- Location score and haplotype analyses of the locus for autosomal recessive spastic ataxia of Charlevoix-Saguenay, in chromosome region 13q11.
- Clinical and molecular genetic studies on autosomal recessive spastic ataxia of Charlevoix-Saguenay (ARSACS).
- Computed tomography of posterior fossa in hereditary ataxias.
Bases de dados e fontes oficiais
Identificadores e referências canônicas usadas para montar este verbete.
- ORPHA:254343(Orphanet)
- OMIM OMIM:613672(OMIM)
- MONDO:0013354(MONDO)
- GARD:10992(GARD (NIH))
- Variantes catalogadas(ClinVar)
- Busca completa no PubMed(PubMed)
- Q21097759(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