A homocistinúria por deficiência de metileno tetrahidrofolato redutase (MTHFR) é um distúrbio metabólico caracterizado por manifestações neurológicas.
Introdução
O que você precisa saber de cara
A homocistinúria por deficiência de metileno tetrahidrofolato redutase (MTHFR) é um distúrbio metabólico caracterizado por manifestações neurológicas.
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
+ 15 sintomas em outras categorias
Características mais comuns
Os sintomas variam de pessoa para pessoa. Abaixo estão as 54 características clínicas mais associadas, ordenadas por frequência.
Linha do tempo da pesquisa
Triagem neonatal (Teste do Pezinho)
A triagem neonatal permite diagnóstico precoce e início imediato do tratamento.
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.
Catalyzes the conversion of 5,10-methylenetetrahydrofolate to 5-methyltetrahydrofolate, a cosubstrate for homocysteine remethylation to methionine (PubMed:29891918). Represents a key regulatory connection between the folate and methionine cycles (Probable)
Homocystinuria due to deficiency of N(5,10)-methylenetetrahydrofolate reductase activity
An autosomal recessive inborn error of folate metabolism. Clinical severity is variable, ranging from severe neurologic features to absence of symptoms. Clinical features include homocysteinuria, homocysteinemia, developmental delay, severe intellectual disability, perinatal death, psychiatric disturbances, and later-onset neurodegenerative disorders.
Variantes genéticas (ClinVar)
298 variantes patogênicas registradas no ClinVar.
Classificação de variantes (ClinVar)
Distribuição de 819 variantes classificadas pelo 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 — Homocistinúria por deficiência de metilenotetraidrofolato redutase
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
Publicações mais relevantes
Novel MTHFR variants manifesting with hereditary spastic paraplegia and recurrent pulmonary embolism: a case report and literature review of adult-onset severe MTHFR deficiency.
5,10-methylenetetrahydrofolate reductase (MTHFR) deficiency is an autosomal recessive metabolic disorder caused by biallelic pathogenic variants in the MTHFR gene. Although clinical heterogeneity is well recognized, the condition rarely presents as spastic paraplegia with onset in adulthood. We report a case associated with two novel MTHFR pathogenic variants manifesting this clinical phenotype. We describe a 45-year-old Chinese man who developed a spastic gait at age 38, followed by lower limb weakness at age 43. Brain magnetic resonance imaging revealed mild leukoencephalopathy. Laboratory tests identified severe hyperhomocysteinemia. Whole-exome sequencing was performed with screening of genes associated with hereditary spastic paraplegia. Furthermore, a comprehensive literature review was conducted, including all adult-onset cases with detailed clinical and genetic information available up to October 2025. Genetic analysis identified three MTHFR variants: c.891T > A (p.Tyr297Ter), c.1916 C > T (p.Thr639Ile), and c.665 C > T (p.Ala222Val). A total of 28 patients from 17 families were identified through the literature review. This study expands the spectrum of pathogenic MTHFR variants and highlights the phenotypic heterogeneity of the disorder. MTHFR deficiency represents a rare yet treatable metabolic cause of spastic paraplegia and should be considered in its diagnostic workup.
Development of a novel liquid chromatography-tandem mass spectrometry based enzymatic assay of 5,10-methylenetetrahydrofolate reductase.
5,10-methylenetetrahydrofolate reductase (MTHFR) deficiency is the most common folate metabolism disorder. MTHFR is a key enzyme in the folate cycle that catalyzes the conversion of 5,10-methylenetetrahydrofolate to 5-methyltetrahydrofolate (5-methyl THF). A definitive diagnosis of MTHFR deficiency relies on enzymatic studies of fibroblasts and/or molecular genetic analyses. The accurate measurement of the MTHFR enzyme activity is crucial for diagnosing and predicting disease severity, which is traditionally performed using high-performance liquid chromatography with fluorescence detection. We developed a novel method for assessing the MTHFR enzymatic activity using liquid chromatography-tandem mass spectrometry (LC-MS/MS). The MTHFR enzymatic reaction was conducted in fibroblasts, and the product, 5-methyl THF, was quantified by LC-MS/MS. The MTHFR activity was evaluated in 13 control individuals and five individuals with MTHFR deficiency. The 5-methyl THF concentration was successfully measured in all cases, and the validation trial demonstrated adequate accuracy and precision. Control fibroblasts exhibited an MTHFR activity ranging from 240.1 to 624.0 pmol/min/mg protein (mean = 338.5 pmol/min/mg), while MTHFR-deficient fibroblasts showed a markedly lower activity (2.99-51.3 pmol/min/mg protein). Although our study is associated with some limitations, we present a sensitive and reliable LC-MS/MS based assay for diagnosing MTHFR deficiency.
Impaired folate metabolism reshapes auditory response profiles and impairs loudness perception in MTHFR-deficient mice.
Folate metabolism, regulated by methylenetetrahydrofolate reductase (MTHFR), is crucial for proper neurodevelopment, and disruptions-whether due to genetic polymorphisms or maternal nutritional deficits-have been linked to cognitive and behavioral impairments. Notably, MTHFR-deficient mouse models display altered social interaction and auditory communication, hinting at disruptions in auditory-related circuits and prompting the question of whether impaired folate metabolism might also affect sound processing and perception. Here, using two-photon calcium imaging, we show that MTHFR deficiency increases both spontaneous and sound-evoked activity in the auditory cortex and significantly shifts neuronal response profiles, which in turn elevates perceived loudness while reducing sound-level discrimination. These findings underscore the potential role of compromised folate metabolism in driving the atypical auditory responses and may have broader relevance for understanding sensory dysfunction in various neurodevelopmental conditions.
RNA sequencing combined with whole-exome sequencing revealed familial homocystinemia due to MTHFR deficiency and its complex splicing events.
5,10-Methylenetetrahydrofolate reductase (MTHFR, MIM #607093) is a key enzyme in the folate cycle that catalyzes the conversion of 5,10-methylenetetrahydrofolate (5,10-MTHF) to 5-methyltetrahydrofolate (5-methylTHF), a critical step for the remethylation of homocysteine to methionine. Methylenetetrahydrofolate reductase deficiency is an autosomal recessive disease and the most common congenital defect in folate metabolism. A deficiency in MTHFR results in elevated serum homocysteine levels. In this study, we evaluated a patient diagnosed with epilepsy and elevated homocysteine levels, who carried compound heterozygous variants c.781-6G>A and c.1316T>C in the MTHFR gene. We primarily focused on the unreported non-canonical splicing variants c.781-6G>A in this patient and identified several complex splicing variant patterns. The c.1316T>C variant results in a substitution of leucine at position 439 with proline and this variant has been previously reported and is considered pathogenic. Our study mainly utilized RNA-seq and TA cloning to reveal the complex splicing patterns exhibited by this non-canonical splicing variant. Additionally, this finding was confirmed through in vitro experiments. This provided deeper insights into the underlying reasons for the patient's disease manifestation. Furthermore, despite apparently normal circulating folate and vitamin B12, we found two family members to exhibit mildly elevated homocysteine levels. While these individuals did not present overt clinical symptoms, the potential harm associated with high homocysteine levels should not be overlooked. This study not only provides additional genetic evidence for the clinical diagnosis of the patient but also broadens our understanding of the clinical manifestations of MTHFR deficiency.
Severe hyperhomocysteinemia due to MTHFR deficiency caused by a new mutation: A case report and literature review.
Methylenetetrahydrofolate reductase (MTHFR) deficiency is a rare autosomal recessive genetic disorder caused by mutations in the MTHFR gene, leading to a variety of clinical manifestations. In October 2022, the Second Xiangya Hospital of Central South University admitted a 21-year-old male patient with neuropsychiatric disorders, presenting primarily with cognitive decline, limb tremors, abnormal mental and behavioral symptoms, seizures, and gait disturbances. These symptoms had gradually developed over 5 years, worsening significantly in the past year. The patient's plasma homocysteine levels were 10 times higher than normal, and brain MRI revealed brain atrophy and significant abnormal signals in the bilateral paraventricular nuclei and heads of the bilateral caudate nuclei. Further genetic testing identified a paternal mutation c.1604G>A (p.R535Q) and a maternal mutation c.227T>G (p.L76R) of the MTHFR gene. After betaine supplementation, the plasma homocysteine levels decreased within a week, and the symptoms improved. The patient was ultimately diagnosed with severe hyperhomocysteinemia due to MTHFR deficiency. The c.227T>G (p.L76R) mutation represents a novel missense mutation in the MTHFR gene associated with MTHFR deficiency, but further research is needed to confirm its potential pathogenicity. Early treatment with betaine can fully reverse the symptoms. 亚甲基四氢叶酸还原酶(methylenetetrahydrofolate reductase,MTHFR)缺乏症是一种罕见的常染色体隐性遗传疾病,由MTHFR基因突变引起,具有多种临床表现。中南大学湘雅二医院于2022年10月收治1例21岁男性患者,患有神经精神障碍,主要表现为认知能力下降、肢体震颤、精神和行为异常、癫痫发作、步态障碍,这些症状在5年内逐渐发展,并在最近1年中恶化。患者的血浆同型半胱氨酸(homocysteine,HCY)明显高于正常水平的10倍,脑MRI显示脑萎缩,双侧室旁核和双侧尾状核头部有明显异常信号,通过进一步的基因检测鉴定出MTHFR基因的父系突变c.1604G>A(p.R535Q)和母系突变c.227T>G(p.L76R)。补充甜菜碱1周后,患者血浆HCY下降,症状改善。患者最终诊断为MTHFR缺乏引起的严重高同型半胱氨酸血症。c.227T>G(p.L76R)是MTHFR基因相关MTHFR缺乏症的一种新的错义突变,但需要更多的研究来证实其可能的致病性。经过早期甜菜碱治疗后该病可完全逆转。. 亚甲基四氢叶酸还原酶(methylenetetrahydrofolate reductase,MTHFR)缺乏症是一种罕见的常染色体隐性遗传疾病,由MTHFR基因突变引起,具有多种临床表现。中南大学湘雅二医院于2022年10月收治1例21岁男性患者,患有神经精神障碍,主要表现为认知能力下降、肢体震颤、精神和行为异常、癫痫发作、步态障碍,这些症状在5年内逐渐发展,并在最近1年中恶化。患者的血浆同型半胱氨酸(homocysteine,HCY)明显高于正常水平的10倍,脑MRI显示脑萎缩,双侧室旁核和双侧尾状核头部有明显异常信号,通过进一步的基因检测鉴定出MTHFR基因的父系突变c.1604G>A(p.R535Q)和母系突变c.227T>G(p.L76R)。补充甜菜碱1周后,患者血浆HCY下降,症状改善。患者最终诊断为MTHFR缺乏引起的严重高同型半胱氨酸血症。c.227T>G(p.L76R)是MTHFR基因相关MTHFR缺乏症的一种新的错义突变,但需要更多的研究来证实其可能的致病性。经过早期甜菜碱治疗后该病可完全逆转。
Publicações recentes
Cost analysis of hospitalized children suspected of rare genetic diseases.
Family planning, sexual activity and contraception in hereditary hemorrhagic telangiectasia: a European survey study.
Osteoporosis in Wilson's disease: A large cohort study highlighting age, sex and skeletal symptoms as key risk factors for clinical surveillance.
Genotype-specific effects of elamipretide in patients with primary mitochondrial myopathy: a post hoc analysis of the MMPOWER-3 trial.
Clinical characteristics and treatment outcomes of women with recurrent uterine leiomyosarcoma.
📚 EuropePMCmostrando 97
Novel MTHFR variants manifesting with hereditary spastic paraplegia and recurrent pulmonary embolism: a case report and literature review of adult-onset severe MTHFR deficiency.
Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical NeurophysiologyDevelopment of a novel liquid chromatography-tandem mass spectrometry based enzymatic assay of 5,10-methylenetetrahydrofolate reductase.
Scientific reportsImpaired folate metabolism reshapes auditory response profiles and impairs loudness perception in MTHFR-deficient mice.
Neurobiology of diseaseSevere hyperhomocysteinemia due to MTHFR deficiency caused by a new mutation: A case report and literature review.
Zhong nan da xue xue bao. Yi xue ban = Journal of Central South University. Medical sciencesRNA sequencing combined with whole-exome sequencing revealed familial homocystinemia due to MTHFR deficiency and its complex splicing events.
GeneClinical, biochemical, molecular characteristics and clinical outcome of hyperhomocysteinemia in Malaysian children.
Clinical biochemistryComparison of Cystathionine Beta-Synthase (CBS) and Methylene Tetrahydrofolate Reductase (MTHFR) Deficiency in Children with Homocystinuria.
Indian journal of pediatricsMTHFR gene polymorphisms in diabetes mellitus.
Clinica chimica acta; international journal of clinical chemistryOutcomes after newborn screening for propionic and methylmalonic acidemia and homocystinurias.
Journal of inherited metabolic disease[Analysis of 9 patients with adolescence-onset methylenetetrahydrofolate reductase deficiency].
Zhonghua er ke za zhi = Chinese journal of pediatricsLate-onset 5,10-methylenetetrahydrofolate reductase deficiency with subacute disturbance of consciousness.
Pediatrics international : official journal of the Japan Pediatric SocietyA case of MTHFR deficiency characterized by adult-onset spastic paraplegia.
QJM : monthly journal of the Association of PhysiciansDental complications in homocystinurias.
Molecular genetics and metabolism reportsEvaluation of the clinical, biochemical, and genetic presentation of neonatal and adult-onset 5,10-methylene tetrahydrofolate reductase (MTHFR) deficiency in patients from Pakistan.
Journal of pediatric endocrinology & metabolism : JPEMContribution of Genetic Test to Early Diagnosis of Methylenetetrahydrofolate Reductase (MTHFR) Deficiency: The Experience of a Reference Center in Southern Italy.
GenesAdolescent/Adult-Onset Leukodystrophy with MTHFR Deficiency - A Treatable Cause.
Neurology IndiaYoga: A Natural Solution to Decrease Disease Burden in Children of MTHFR Deficient Parents.
La Clinica terapeuticaMethylenetetrahydrofolate reductase deficiency and high-dose FA supplementation disrupt embryonic development of energy balance and metabolic homeostasis in zebrafish.
Human molecular geneticsNovel compound heterozygous mutations of MTHFR Gene in a Chinese family with homocystinuria due to MTHFR deficiency.
BMC medical genomicsMild methylenetetrahydrofolate reductase deficiency accelerates liver triacylglycerol and uric acid accumulation in fructose-fed mice.
Nutrition research (New York, N.Y.)From resveratrol to ISIDE11: how to activate SIRT1 and improve endothelial function? New therapeutic insights for methylenetetrahydrofolate reductase deficiency.
Cellular and molecular life sciences : CMLSSIRT1 pharmacological activation rescues vascular dysfunction and prevents thrombosis in MTHFR deficiency.
Cellular and molecular life sciences : CMLSInfluence of early identification and therapy on long-term outcomes in early-onset MTHFR deficiency.
Journal of inherited metabolic diseasePostauthorization safety study of betaine anhydrous.
Journal of inherited metabolic diseaseA Glance into MTHFR Deficiency at a Molecular Level.
International journal of molecular sciencesHypoventilation and progressive encephalopathy in a neonate with MTHFR deficiency.
BMJ case reportsVariable neurological phenotypes of homocystinuria caused by biallelic methylenetetrahydrofolate reductase variants.
Clinical dysmorphologyReversible leukoencephalopathy and cerebral atrophy in homocystinuria due to MTHFR deficiency: A treatable metabolic disorder.
Journal of inherited metabolic diseasePilot Study on Neonatal Screening for Methylmalonic Acidemia Caused by Defects in the Adenosylcobalamin Synthesis Pathway and Homocystinuria Caused by Defects in Homocysteine Remethylation.
International journal of neonatal screeningShifting landscapes of human MTHFR missense-variant effects.
American journal of human geneticsMaternal Folic Acid Intake and Methylation Status of Genes Associated with Ventricular Septal Defects in Children: Case-Control Study.
NutrientsPaternal MTHFR deficiency leads to hypomethylation of young retrotransposons and reproductive decline across two successive generations.
Development (Cambridge, England)Moderate Folic Acid Supplementation in Pregnant Mice Results in Altered Methyl Metabolism and in Sex-Specific Placental Transcription Changes.
Molecular nutrition & food researchDysregulation of homocysteine homeostasis in acute intermittent porphyria patients receiving heme arginate or givosiran.
Journal of inherited metabolic diseaseDerangement of hepatic polyamine, folate, and methionine cycle metabolism in cystathionine beta-synthase-deficient homocystinuria in the presence and absence of treatment: Possible implications for pathogenesis.
Molecular genetics and metabolismDevelopment of a Pharmacogenetic Lab-on-Chip Assay Based on the In-Check Technology to Screen for Genetic Variations Associated to Adverse Drug Reactions to Common Chemotherapeutic Agents.
BiosensorsThe 1316T>C missenses mutation in MTHFR contributes to MTHFR deficiency by targeting MTHFR to proteasome degradation.
AgingL-methylfolate, a new option in psychiatric treatment, would it be linked to psoriasis relapse?
Einstein (Sao Paulo, Brazil)[Remethylation disorders: about two cases].
Annales de biologie cliniqueAssociation between MTHFR polymorphisms (MTHFR C677T, MTHFR A1298C) and recurrent implantation failure: a systematic review and meta-analysis.
Archives of gynecology and obstetricsClinical and molecular characterization of adult patients with late-onset MTHFR deficiency.
Journal of inherited metabolic diseaseAdolescent/adult-onset homocysteine remethylation disorders characterized by gait disturbance with/without psychiatric symptoms and cognitive decline: a series of seven cases.
Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical NeurophysiologyMethylenetetrahydrofolate Reductase Deficiency as a Cause of Treatable Adult-onset Leukoencephalopathy and Myelopathy.
Clinical neuroradiology[Cerebral sinovenous thrombosis in a newborn with mutation of MTHFR C677T treated with enoxaparin].
Revista chilena de pediatriaMethylenetetrahydrofolate Reductase Deficiency: A Case Report.
AANA journalMethylene Tetrahydrofolate Reductase Deficiency.
Indian journal of pediatricsMethylenetetrahydrofolate reductase deficiency alters cellular response after ischemic stroke in male mice.
Nutritional neuroscienceSequential multiple retinal vein occlusions and transient ischemic attack in MTHFR polymorphism and protein S deficiency.
Molecular genetics & genomic medicineAn unusually high plasma concentration of homocysteine resulting from a combination of so-called "secondary" etiologies.
Clinical biochemistryAdult-onset methylenetetrahydrofolate reductase deficiency.
BMJ case reportsSNPs in folate pathway are associated with the risk of nonsyndromic cleft lip with or without cleft palate, a meta-analysis.
Bioscience reports[Methylenetetrahydrofolate Reductase deficiency and anesthesia: importance of a detailed preoperative evaluation].
Brazilian journal of anesthesiology (Elsevier)Early treatment using betaine and methionine for a neonate with MTHFR deficiency.
Pediatrics international : official journal of the Japan Pediatric SocietyDetermination and interpretation of MTHFR gene mutations in gynecology and internal medicine.
Polish archives of internal medicineAssociations between Folate Metabolism Enzyme Polymorphisms and Lung Cancer: A Meta-Analysis.
Nutrition and cancerFolate, genomic stability and colon cancer: The use of single cell gel electrophoresis in assessing the impact of folate in vitro, in vivo and in human biomonitoring.
Mutation research. Genetic toxicology and environmental mutagenesisHyperhomocysteinemia: a trigger for complement-mediated TMA?
Acta clinica BelgicaBeyond evidence-based treatment of bipolar disorder: Rational pragmatic approaches to management.
Bipolar disordersAssociation of MTHFR C677T, MTHFR A1298C, and MTRR A66G Polymorphisms with Neural Tube Defects in Tunisian Parents.
Pathobiology : journal of immunopathology, molecular and cellular biologyThe MTHFR 677C>T polymorphism is associated with unmetabolized folic acid in breast milk in a cohort of Canadian women.
The American journal of clinical nutritionDifferential global and MTHFR gene specific methylation patterns in preeclampsia and recurrent miscarriages: A case-control study from North India.
GenePhenotype, treatment practice and outcome in the cobalamin-dependent remethylation disorders and MTHFR deficiency: Data from the E-HOD registry.
Journal of inherited metabolic diseaseThe clinical presentation of cobalamin-related disorders: From acquired deficiencies to inborn errors of absorption and intracellular pathways.
Journal of inherited metabolic diseaseNewborn screening for homocystinurias: Recent recommendations versus current practice.
Journal of inherited metabolic diseaseMild Methylenetetrahydrofolate Reductase Deficiency Alters Inflammatory and Lipid Pathways in Liver.
Molecular nutrition & food researchEarly Manifestations of Brain Aging in Mice Due to Low Dietary Folate and Mild MTHFR Deficiency.
Molecular neurobiologyThe Effects of Homocysteine on the Skeleton.
Current osteoporosis reportsPrevalence of factor V leiden, MTHFR C677T and MTHFR A1298C polymorphisms in patients with deep vein thrombosis in Central Iran.
Molecular biology reportsGene variants in the folate pathway are associated with increased levels of folate receptor autoantibodies.
Birth defects researchHomocysteine and Hyperhomocysteinaemia.
Current medicinal chemistryAdolescence/adult onset MTHFR deficiency may manifest as isolated and treatable distinct neuro-psychiatric syndromes.
Orphanet journal of rare diseasesFocal epilepsy as the revealing symptom of 5,10-methylenetetrahydrofolate reductase deficiency in a young adult.
Revue neurologiqueSevere 5,10-methylenetetrahydrofolate reductase deficiency: a rare, treatable cause of complicated hereditary spastic paraplegia.
European journal of neurologyManifestations of neurological symptoms and thromboembolism in adults with MTHFR-deficiency.
Journal of the neurological sciencesAminoacidopathies: Prevalence, Etiology, Screening, and Treatment Options.
Biochemical geneticsA comparison of the genetic and clinical risk factors for arterial hypertension between indigenous and non-indigenous people of the Shoria Mountain Region.
Clinical and experimental hypertension (New York, N.Y. : 1993)Venous thromboembolism due to hyperhomocysteinaemia and tuberculosis.
The National medical journal of IndiaRapidly progressive psychotic symptoms triggered by infection in a patient with methylenetetrahydrofolate reductase deficiency: a case report.
BMC neurologyHigh dietary folate in pregnant mice leads to pseudo-MTHFR deficiency and altered methyl metabolism, with embryonic growth delay and short-term memory impairment in offspring.
Human molecular geneticsGuidelines for diagnosis and management of the cobalamin-related remethylation disorders cblC, cblD, cblE, cblF, cblG, cblJ and MTHFR deficiency.
Journal of inherited metabolic diseaseFunctional characterization of missense mutations in severe methylenetetrahydrofolate reductase deficiency using a human expression system.
Journal of inherited metabolic diseaseDetermination of CSF 5-methyltetrahydrofolate in children and its application for defects of folate transport and metabolism.
Clinica chimica acta; international journal of clinical chemistryMTHFR: Addressing Genetic Counseling Dilemmas Using Evidence-Based Literature.
Journal of genetic counselingAdult-onset severe methylenetetrahydrofolate reductase deficiency characterized by reversible spastic paraplegia with a novel mutation.
Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical NeurophysiologyHomocysteinemia due to MTHFR deficiency in a young adult presenting with bilateral lens subluxations.
Ophthalmic geneticsMutation Update and Review of Severe Methylenetetrahydrofolate Reductase Deficiency.
Human mutationHomocysteine Metabolism, Atherosclerosis, and Diseases of Aging.
Comprehensive PhysiologyMolecular and biochemical investigations of patients with intermediate or severe hyperhomocysteinemia.
Molecular genetics and metabolismHyperhomocysteinemia-induced upper extremity deep vein thrombosis and pulmonary embolism in a patient with methyltetrahydrofolate reductase mutation: a case report and literature review.
Blood coagulation & fibrinolysis : an international journal in haemostasis and thrombosisMultidisciplinary approach and anesthetic management of a surgical cancer patient with methylene tetrahydrofolate reductase deficiency: a case report and review of the literature.
Journal of medical case reportsClinical pattern, mutations and in vitro residual activity in 33 patients with severe 5, 10 methylenetetrahydrofolate reductase (MTHFR) deficiency.
Journal of inherited metabolic diseaseMTHFR deficiency or reduced intake of folate or choline in pregnant mice results in impaired short-term memory and increased apoptosis in the hippocampus of wild-type offspring.
NeuroscienceOutcomes of four patients with homocysteine remethylation disorders detected by newborn screening.
Genetics in medicine : official journal of the American College of Medical GeneticsRetinal Ganglion Cell Loss and Mild Vasculopathy in Methylene Tetrahydrofolate Reductase (Mthfr)-Deficient Mice: A Model of Mild Hyperhomocysteinemia.
Investigative ophthalmology & visual scienceNewborn screening for homocystinurias and methylation disorders: systematic review and proposed guidelines.
Journal of inherited metabolic diseaseInsights into severe 5,10-methylenetetrahydrofolate reductase deficiency: molecular genetic and enzymatic characterization of 76 patients.
Human mutationHigh folic acid consumption leads to pseudo-MTHFR deficiency, altered lipid metabolism, and liver injury in mice.
The American journal of clinical nutritionAssociações
Organizações que acompanham esta doença — pra ter apoio e orientação
Ainda não temos associações cadastradas para Homocistinúria por deficiência de metilenotetraidrofolato redutase.
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 Homocistinúria por deficiência de metilenotetraidrofolato redutase
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.
- Novel MTHFR variants manifesting with hereditary spastic paraplegia and recurrent pulmonary embolism: a case report and literature review of adult-onset severe MTHFR deficiency.Neurological sciences : official journal of the Italian Neurological Society and of the Italian Society of Clinical Neurophysiology· 2026· PMID 41557084mais citado
- Development of a novel liquid chromatography-tandem mass spectrometry based enzymatic assay of 5,10-methylenetetrahydrofolate reductase.
- Impaired folate metabolism reshapes auditory response profiles and impairs loudness perception in MTHFR-deficient mice.
- RNA sequencing combined with whole-exome sequencing revealed familial homocystinemia due to MTHFR deficiency and its complex splicing events.
- Severe hyperhomocysteinemia due to MTHFR deficiency caused by a new mutation: A case report and literature review.Zhong nan da xue xue bao. Yi xue ban = Journal of Central South University. Medical sciences· 2024· PMID 39788525mais citado
- Cost analysis of hospitalized children suspected of rare genetic diseases.
- Family planning, sexual activity and contraception in hereditary hemorrhagic telangiectasia: a European survey study.
- Osteoporosis in Wilson's disease: A large cohort study highlighting age, sex and skeletal symptoms as key risk factors for clinical surveillance.
- Genotype-specific effects of elamipretide in patients with primary mitochondrial myopathy: a post hoc analysis of the MMPOWER-3 trial.
- Clinical characteristics and treatment outcomes of women with recurrent uterine leiomyosarcoma.
Bases de dados e fontes oficiais
Identificadores e referências canônicas usadas para montar este verbete.
- ORPHA:395(Orphanet)
- OMIM OMIM:236250(OMIM)
- MONDO:0009353(MONDO)
- GARD:2734(GARD (NIH))
- Variantes catalogadas(ClinVar)
- Busca completa no PubMed(PubMed)
- Q30643222(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
