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Deficiência de ornitina carbamoiltransferase
ORPHA:664CID-10 · E72.4CID-11 · 5C50.AYOMIM 311250DOENÇA RARA

A deficiência de ornitina transcarbamilase (DOTC) é um problema no ciclo da ureia, que é o processo do corpo para eliminar substâncias tóxicas como a amônia. A doença pode se apresentar de duas maneiras: uma forma grave, que surge logo após o nascimento e afeta quase exclusivamente meninos; ou formas que aparecem mais tarde na vida (parciais). Em ambos os casos, ocorrem episódios de acúmulo excessivo de amônia no sangue (hiperamonemia), que podem ser fatais e provocar problemas neurológicos.

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Introdução

O que você precisa saber de cara

📋

A deficiência de ornitina transcarbamilase (DOTC) é um problema no ciclo da ureia, que é o processo do corpo para eliminar substâncias tóxicas como a amônia. A doença pode se apresentar de duas maneiras: uma forma grave, que surge logo após o nascimento e afeta quase exclusivamente meninos; ou formas que aparecem mais tarde na vida (parciais). Em ambos os casos, ocorrem episódios de acúmulo excessivo de amônia no sangue (hiperamonemia), que podem ser fatais e provocar problemas neurológicos.

Pesquisas ativas
8 ensaios
59 total registrados no ClinicalTrials.gov
Publicações científicas
812 artigos
Último publicado: 2026 Mar 18

Escala de raridade

CLASSIFICAÇÃO ORPHANET · BRASIL 2024
1-9 / 100 000
Ultra-rara
<1/50k
Muito rara
1/20k
Rara
1/10k
Pouco freq.
1/5k
Incomum
1/2k
Prevalência
1.0
Europe
Início
All ages
🏥
SUS: Cobertura mínimaScore: 15%
CID-10: E72.4
🇧🇷Dados SUS / DATASUS
PROCEDIMENTOS SIGTAP (7)
0202010279
Dosagem de aminoácidos (erros inatos)metabolic_test
0202010295
Dosagem de ácidos orgânicos na urinagenetic_test
0202010490
Teste de triagem para erros inatos do metabolismonewborn_screening
0202010694
Sequenciamento completo do exoma (WES)rehabilitation
0202080013
Teste do pezinho (triagem neonatal)nutritional
0301070040
Atendimento em reabilitação — doenças raras
+1 outros procedimentos
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Sinais e sintomas

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

Partes do corpo afetadas

🧠
Neurológico
10 sintomas
🫃
Digestivo
6 sintomas
📏
Crescimento
4 sintomas
🩸
Sangue
2 sintomas
🫁
Pulmão
1 sintomas
👂
Ouvidos
1 sintomas

+ 27 sintomas em outras categorias

Características mais comuns

100%prev.
Hiperamonemia
Muito frequente (99-80%)
95%prev.
Acidúria orótica
Frequente (79-30%)
94%prev.
Concentração elevada de uracil circulante
Frequência: 51/54
90%prev.
Hipoglicemia
Muito frequente (99-80%)
90%prev.
Insuficiência hepática
Muito frequente (99-80%)
90%prev.
Esplenomegalia
Muito frequente (99-80%)
51sintomas
Muito frequente (7)
Frequente (17)
Ocasional (19)
Muito raro (1)
Sem dados (7)

Os sintomas variam de pessoa para pessoa. Abaixo estão as 51 características clínicas mais associadas, ordenadas por frequência.

HiperamonemiaHyperammonemia
Muito frequente (99-80%)100%
Acidúria oróticaOroticaciduria
Frequente (79-30%)95%
Concentração elevada de uracil circulanteElevated circulating uracil concentration
Frequência: 51/5494%
HipoglicemiaHypoglycemia
Muito frequente (99-80%)90%
Insuficiência hepáticaHepatic failure
Muito frequente (99-80%)90%

Linha do tempo da pesquisa

Publicações por ano — veja quando o interesse científico cresceu
Anos de pesquisa1desde 2026
Total histórico812PubMed
Últimos 10 anos200publicações
Pico202250 papers
Linha do tempo
2026Hoje · 2026🧪 1995Primeiro ensaio clínico📈 2022Ano de pico
Publicações por ano (últimos 10 anos)

Encontrou um erro ou informação desatualizada? Sugira uma correção →

Genética e causas

O que está alterado no DNA e como passa nas famílias

Genes associados

1 gene identificado com associação a esta condição. Padrão de herança: X-linked recessive.

OTCOrnithine transcarbamylase, mitochondrialDisease-causing germline mutation(s) inAltamente restrito
FUNÇÃO

Catalyzes the second step of the urea cycle, the condensation of carbamoyl phosphate with L-ornithine to form L-citrulline (PubMed:2556444, PubMed:6372096, PubMed:8112735). The urea cycle ensures the detoxification of ammonia by converting it to urea for excretion (PubMed:2556444)

LOCALIZAÇÃO

Mitochondrion matrix

VIAS BIOLÓGICAS (2)
Urea cycleMitochondrial protein import
MECANISMO DE DOENÇA

Ornithine carbamoyltransferase deficiency

An X-linked disorder of the urea cycle which causes a form of hyperammonemia. Mutations with no residual enzyme activity are always expressed in hemizygote males by a very severe neonatal hyperammonemic coma that generally proves to be fatal. Heterozygous females are either asymptomatic or express orotic aciduria spontaneously or after protein intake. The disorder is treatable with supplemental dietary arginine and low protein diet. The arbitrary classification of patients into the 'neonatal' group (clinical hyperammonemia in the first few days of life) and 'late' onset (clinical presentation after the neonatal period) has been used to differentiate severe from mild forms.

EXPRESSÃO TECIDUAL(Tecido-específico)
Fígado
51.3 TPM
Intestino delgado
16.4 TPM
Cólon transverso
1.6 TPM
Testículo
1.1 TPM
Fallopian Tube
1.0 TPM
OUTRAS DOENÇAS (1)
ornithine carbamoyltransferase deficiency
HGNC:8512UniProt:P00480

Medicamentos aprovados (FDA)

2 medicamentos encontrados nos registros da FDA americana.

💊 sodium phenylbutyrate (SODIUM PHENYLBUTYRATE)
💊 Sodium Phenylbutyrate (SODIUM PHENYLBUTYRATE TABLETS, 500 MG)
Ver no DailyMed/FDA

Variantes genéticas (ClinVar)

676 variantes patogênicas registradas no ClinVar.

🧬 OTC: NM_000531.6(OTC):c.943G>C (p.Val315Leu) ()
🧬 OTC: GRCh38/hg38 Xp22.33-11.4(chrX:251888-42476276)x2 ()
🧬 OTC: NM_000531.6(OTC):c.81T>A (p.Cys27Ter) ()
🧬 OTC: NC_000023.11:g.38401274GT[1] ()
🧬 OTC: NM_000531.6(OTC):c.994T>C (p.Trp332Arg) ()
Ver todas no ClinVar

Diagnóstico

Os sinais que médicos procuram e os exames que confirmam

Carregando...

Tratamento e manejo

Remédios, cuidados de apoio e o que precisa acompanhar

Pipeline de tratamentos
Pipeline regulatório — de medicamentos já aprovados a drogas em pesquisa exploratória.
2Fase 26
1Fase 12
·Pré-clínico12
Medicamentos catalogadosEnsaios clínicos· 0 medicamentos · 20 ensaios
Carregando informações de tratamento...

Onde tratar no SUS

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

🇧🇷 Atendimento SUS — Deficiência de ornitina carbamoiltransferase

🗺️

Selecione um estado ou use sua localização para ver resultados.

Dados de DATASUS/CNES, SBGM, ABNeuro e Ministério da Saúde. Sempre confirme a disponibilidade diretamente com o estabelecimento.

Pesquisa ativa

Ensaios clínicos abertos e novidades científicas recentes

🟢 Recrutando agora

7 pesquisas recrutando participantes. Converse com seu médico sobre a possibilidade de participar.

Outros ensaios clínicos

59 ensaios clínicos encontrados, 8 ativos.

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

Timeline de publicações
316 papers (10 anos)
#1

Emerging neurological and cognitive symptoms in patients with late-onset ornithine transcarbamylase deficiency: a narrative review.

Metabolic brain disease2026 Mar 13

Ornithine transcarbamylase deficiency (OTCD) is a rare X-linked urea cycle disorder associated with mild-to-severe neurological/cognitive symptoms that impact quality of life. Most patients are diagnosed with late-onset OTCD after 28 days of age. Emerging symptoms in adolescents and adults may not be recognized as effects of hyperammonemia, a common and potentially lethal complication of OTCD, and may contribute to substantial burden even when patients are diagnosed and treated. However, current reviews do not address this burden. Our aim is to raise awareness of neurological/cognitive manifestations of late-onset OTCD in adolescents and adults to reduce diagnostic delays and improve outcomes. Acutely, patients can present with signs of neurological impairment and psychiatric manifestations, which may be associated with a specific trigger or without known cause. Cognitive changes are more likely to be subacute or chronic, and onset may occur after hyperammonemia. As many late-onset OTCD cases are identified after presenting to emergency departments or primary care providers (often followed by hospital admission), education of frontline providers is needed to drive awareness, recognize symptoms, and improve patient care. [Image: see text]

#2

Pediatric liver transplantation for inherited metabolic disease-Current challenges.

Saudi journal of gastroenterology : official journal of the Saudi Gastroenterology Association2026 Mar 06

Liver transplantation (LT) was first introduced in the early 1960s, with early paediatric experience marked by significant technical challenges and high risk. Advances in surgical techniques and immunosuppressive therapy in the late 1970s led to successful paediatric LT outcomes, while continued improvements throughout the 1980s and 1990s have enhanced survival and reduced complications. Current 10-year graft and patient survival rates for elective paediatric indications exceed 90%. Over the past two decades, LT has increasingly been used to treat inherited metabolic diseases (IMDs), which now account for 25-30% of paediatric LT. Initially recommended for tyrosinaemia type 1 in 1978 and later for urea cycle disorders such as ornithine transcarbamylase deficiency, LT can be curative when the metabolic defect is confined to the liver and partially corrective in conditions with extrahepatic involvement. As indications expand and earlier intervention is emphasized, this review examines the role of LT in IMDs, highlighting current concepts, challenges, and controversies.

#3

Clinical heterogeneity, genotype, and neurological outcomes in six Palestinian patients with ornithine transcarbamylase deficiency.

BMC pediatrics2026 Mar 05
#4

Impact of long-term nitrogen scavenger therapy on clinical outcome in individuals with urea cycle disorders.

Scientific reports2026 Mar 18

Principles of long-term medical management in individuals with urea cycle disorders (UCDs) encompass (1) a low protein diet, (2) supplementation of arginine and/or citrulline along with essential amino acids, nutrients, vitamins and trace elements, and (3) use of nitrogen scavenging agents to reduce recurrent hyperammonemic events (HAEs). These principles aim at providing metabolic stability, elimimation of chronic complications, and achievement of normal development as well as growth. A retrospective comparative analysis was performed by studying 138 individuals with male ornithine transcarbamylase deficiency (mOTC-D), citrullinemia type 1 (CTLN1) and argininosuccinic aciduria (ASA) based on in vitro residual enzymatic activity for severity-adjustment. Results show that individuals with mOTC-D, CTLN1 and ASA are at risk of progressive linear growth impairment, recurrent annual HAEs and an unfavorable neurocognitive outcome despite being under long-term nitrogen scavenging pharmacotherapy. No overall superiority among existing nitrogen scavenging agents with regard to the individual's metabolic stability, linear growth impairment and poor neurocognitive outcome was observed. Novel therapeutic strategies are urgently needed to ultimately improve health outcomes in individuals with UCDs in order to sufficiently meet guideline-specific goals.

#5

Hyperammonemia-Associated Stroke-Like Episodes and Acute Liver Failure in an 11-Month-Old Infant With Probable Ornithine Transcarbamylase Deficiency: Diagnostic and Therapeutic Challenges in a Resource-Limited Setting.

Cureus2026 Feb

Hyperammonemia outside the neonatal period is a time-critical emergency and may reveal a late-onset urea cycle disorder, including ornithine transcarbamylase deficiency (OTCD), which can be particularly challenging to recognize in females. We report the case of an 11-month-old female who presented with seizures and transient focal neurological deficits in the context of recurrent vomiting and acute hepatic dysfunction, with respiratory alkalosis and marked hyperammonemia accompanied by biochemical features compatible with a proximal urea cycle defect. Brain imaging showed stroke-like changes that were not consistent with a vascular territory, supporting a metabolic mechanism rather than primary ischemia. In a resource-limited setting where standard nitrogen-scavenging therapy and extracorporeal ammonia removal were not accessible, prompt catabolic control using strict protein restriction and high-calorie hydration was associated with biochemical recovery and clinical improvement, although mild residual weakness remained. This report highlights that early suspicion and immediate supportive management can be lifesaving when advanced diagnostics and targeted therapies are unavailable.

Publicações recentes

Ver todas no PubMed

📚 EuropePMC527 artigos no totalmostrando 197

2026

Impact of long-term nitrogen scavenger therapy on clinical outcome in individuals with urea cycle disorders.

Scientific reports
2026

Emerging neurological and cognitive symptoms in patients with late-onset ornithine transcarbamylase deficiency: a narrative review.

Metabolic brain disease
2026

Pediatric liver transplantation for inherited metabolic disease-Current challenges.

Saudi journal of gastroenterology : official journal of the Saudi Gastroenterology Association
2026

Clinical heterogeneity, genotype, and neurological outcomes in six Palestinian patients with ornithine transcarbamylase deficiency.

BMC pediatrics
2026

Hyperammonemia-Associated Stroke-Like Episodes and Acute Liver Failure in an 11-Month-Old Infant With Probable Ornithine Transcarbamylase Deficiency: Diagnostic and Therapeutic Challenges in a Resource-Limited Setting.

Cureus
2026

A Complex Case of Ornithine Transcarbamylase Deficiency in a Patient With Severe Comorbid Conditions.

Clinical case reports
2026

Analysis of OTC Gene Variations in Early-Onset Ornithine Transcarbamylase Deficiency: A Case Report and Review of the Literature.

Journal of paediatrics and child health
2026

Biochemical, Clinical, and Functional Characterization of a Rare c.-106C>A Promoter Region Variant in Late-Onset Ornithine Transcarbamylase Deficiency: A Multifamily Case Series.

JIMD reports
2026

A multicenter descriptive study of neonatal-onset urea cycle disorder patients hospitalized in level IV NICUs.

Journal of perinatology : official journal of the California Perinatal Association
2025

Radiation therapy in a ductal carcinoma in situ patient with ornithine transcarbamylase deficiency: a case report.

Radiation oncology journal
2025

A Young Man with Late-onset Ornithine Transcarbamylase Deficiency Successfully Treated with Prompt and Intensive Blood Purification Therapy for Severe Hyperammonemic Encephalopathy.

Internal medicine (Tokyo, Japan)
2025

Hyperammonemia in Inherited Metabolic Diseases: A Case Report.

Cureus
2025

Infantile Spasms in Inborn Errors of Metabolism: Diagnostic and Therapeutic Considerations.

Journal of child neurology
2025

Early continuous blood purification and timely liver transplantation in a neonatal-onset ornithine transcarbamylase deficiency: a case report.

Translational pediatrics
2025

Fatal ornithine transcarbamylase deficiency presentation postresection of fourth ventricle ependymoma: illustrative case.

Journal of neurosurgery. Case lessons
2025

Rebound hyperammonemia triggered by interruption of renal replacement therapy in adolescent ornithine transcarbamylase deficiency.

The journal of medical investigation : JMI
2025

Development of patient-centric conceptual frameworks for symptoms and impacts of ornithine transcarbamylase deficiency (OTCD).

Journal of patient-reported outcomes
2026

Two commonly reported incidental variants in OTC are associated with late-onset disease.

HGG advances
2025

Liver transplantation in late-onset ornithine transcarbamylase deficiency with acute liver failure: A case report.

Pediatrics international : official journal of the Japan Pediatric Society
2025

The Current Status of Adult Patients With Urea Cycle Disorders in Japan: From the Nation-Wide Study.

Journal of inherited metabolic disease
2025

The Evolving Trend of Liver Transplantation in Metabolic Diseases: From Origins to Current Perspectives.

Journal of inherited metabolic disease
2025

Current Treatment Modalities for Urea Cycle Disorders.

Paediatric drugs
2025

Recurrent Male Neonatal Deaths in a Heterozygous X-linked Ornithine Transcarbamylase Deficiency Carrier Pregnant Woman.

Journal of obstetrics and gynaecology of India
2025

[Clinical characteristics and efficacy of glyceryl phenylbutyrate treatment in 20 pediatric patients with urea cycle disorder].

Zhonghua er ke za zhi = Chinese journal of pediatrics
2025

A Case of a Heterozygous Female Patient With Ornithine Transcarbamylase (OTC) Deficiency Successfully Treated by Liver Transplantation in Adulthood.

Cureus
2025

Clinical characteristics and long-term outcomes of 101 patients with urea cycle disorders in China.

Orphanet journal of rare diseases
2025

Diagnostic challenges in ornithine transcarbamylase deficiency lacking genetic confirmation: liver biopsy versus human induced pluripotent stem cell technology.

Molecular genetics and metabolism reports
2025

Late-onset ornithine transcarbamylase deficiency mimicking cognitive, behavioral and gait disorders: a case report and literature review.

Postepy psychiatrii neurologii
2025

The current social status in adult patients with urea cycle disorders in Japan.

Molecular genetics and metabolism
2025

Acute hyperammonemic encephalopathy masquerading as postoperative delirium in a patient who underwent lung surgery: a case report.

BMC anesthesiology
2025

Perioperative care in pediatric OTC deficiency and goldenhar syndrome: a case report.

Frontiers in pediatrics
2025

Novel Treatment Strategy for Patients With Urea Cycle Disorders: Pharmacological Chaperones Enhance Enzyme Stability and Activity in Patient-Derived Liver Disease Models.

Journal of inherited metabolic disease
2025

Hyperammonemic Encephalopathy due to Underlying Ornithine Transcarbamylase Deficiency.

Annals of Indian Academy of Neurology
2025

Understanding the Natural History and the Effects of Current Therapeutic Strategies on Urea Cycle Disorders: Insights from the UCD Spanish Registry.

Nutrients
2025

Successful pregnancy in a patient with OTCD using advanced technologies and liver transplant.

Pediatrics international : official journal of the Japan Pediatric Society
2025

Clinical and biochemical characteristics of patients with ornithine transcarbamylase deficiency and in silico analysis of OTC gene.

Orphanet journal of rare diseases
2025

Maternal health outcomes in ornithine transcarbamylase deficiency: A comparative analysis of pregnancies in symptomatic and asymptomatic heterozygotes.

Molecular genetics and metabolism
2025

Biochemical Characterization of Disease-Associated Variants of Human Ornithine Transcarbamylase.

ACS chemical biology
2025

Hyperammonemia induces programmed liver cell death.

Science advances
2025

Subdural Abscess From Acute Sinusitis in a Patient With Ornithine Transcarbamylase Deficiency.

Clinical case reports
2025

New Diagnosis of Ornithine Transcarbamylase Deficiency in a 71-Year-Old Man.

The Canadian journal of neurological sciences. Le journal canadien des sciences neurologiques
2025

The Frequencies of Different Inborn Errors of Metabolism in Adult Metabolic Centres: 10 Years Later, Another Report From the SSIEM Adult Metabolic Physicians Group.

Journal of inherited metabolic disease
2025

Characterization of a novel conditional knockout mouse model to assess efficacy of mRNA therapy in the context of severe OTC deficiency.

Molecular therapy : the journal of the American Society of Gene Therapy
2025

Establishment and evaluation of a method for measuring ornithine transcarbamylase activity in micro blood of neonates.

Orphanet journal of rare diseases
2025

[Tandem mass spectrometry screening and genetic analysis of neonates with Urea cycle disorders].

Zhonghua yi xue yi chuan xue za zhi = Zhonghua yixue yichuanxue zazhi = Chinese journal of medical genetics
2025

Undiagnosed partial ornithine transcarbamylase deficiency presenting as recurrent hyperammonaemic encephalopathy after capecitabine administration.

BMJ case reports
2024

Adenoviral Vectors for Gene Therapy of Hereditary Diseases.

Biology
2025

Maternal and Newborn Care for Ornithine Transcarbamylase Deficiency.

MCN. The American journal of maternal child nursing
2024

Strategies for Modifying Adenoviral Vectors for Gene Therapy.

International journal of molecular sciences
2025

A novel de novo missense OTC mutation in an Iranian girl: a case report.

Journal of pediatric endocrinology &amp; metabolism : JPEM
2024

A Case of Hyperammonemia Not Attributable to Liver Disease and Treated With IV Ammonia Scavengers.

Cureus
2025

Preimplantation genetic testing for inborn errors of metabolism: observations from a reproductive genetic laboratory in China.

Journal of human genetics
2024

Clinical and Genetic Analysis of 8 Children With Ornithine Transcarbamylase Deficiency: Two Novel Mutations.

Neurology. Genetics
2024

Exploring RNA therapeutics for urea cycle disorders.

Journal of inherited metabolic disease
2024

Repeated management of a woman with ornithine transcarbamylase deficiency in two pregnancies.

Pediatrics international : official journal of the Japan Pediatric Society
2024

Perinatal management and follow-up in a child with a prenatal diagnosis of OTC deficiency: a case report.

Frontiers in nutrition
2024

In-depth analysis of OTC A208T case induced by OTC gene mutation and research on the prediction and simulation of the impact on protein function.

Frontiers in pediatrics
2024

Severity-adjusted evaluation of initial dialysis on short-term health outcomes in urea cycle disorders.

Molecular genetics and metabolism
2024

Clinical characteristics and molecular genetic analysis of ten cases of ornithine carbamoyltransferase deficiency in southeastern China.

Italian journal of pediatrics
2024

Neonatal Presentation of Ornithine Transcarbamylase Deficiency Associated With a Hypomorphic OTC Variant (p.Leu301Phe) Previously Reported in Later-Onset Disease.

Cureus
2024

A preliminary retrospective evaluation of screening and diagnosis of ornithine transcarbamylase deficiency in high-risk patients at a referral center in Vietnam.

Heliyon
2024

Sleeping Beauty mRNA-LNP enables stable rAAV transgene expression in mouse and NHP hepatocytes and improves vector potency.

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

Disease spectrum, prevalence, genetic characteristics of inborn errors of metabolism in 21,840 hospitalized infants in Chongqing, China, 2017-2022.

Frontiers in genetics
2024

[Treatment of ornithine transcarbamylase deficiency in a child with glyceryl phenylbutyrate].

Zhongguo dang dai er ke za zhi = Chinese journal of contemporary pediatrics
2024

Corticosteroid-induced hyperammonaemic encephalopathy in a woman with late-onset ornithine transcarbamylase deficiency.

BMJ case reports
2024

Are asymptomatic carriers of OTC deficiency always asymptomatic? A multicentric retrospective study of risk using the UCDC longitudinal study database.

Molecular genetics &amp; genomic medicine
2024

Severe Sepsis Associated With Multiorgan Failure and Precipitating Nonhepatic Hyperammonemia Crisis in Late-Onset Ornithine Transcarbamylase Deficiency: A Case Report and Literature Review.

Cureus
2024

Sensory ataxic polyneuropathy unmasking late-onset urea cycle defect.

Clinical neurology and neurosurgery
2024

Encephalopathy After a High-Dose Dexamethasone Suppression Test in a Woman With X-Linked Ornithine Transcarbamylase Deficiency.

AACE clinical case reports
2024

Impact of citrulline substitution on clinical outcome after liver transplantation in carbamoyl phosphate synthetase 1 and ornithine transcarbamylase deficiency.

Journal of inherited metabolic disease
2024

Impact of supplementation with L-citrulline/arginine after liver transplantation in individuals with Urea Cycle Disorders.

Molecular genetics and metabolism
2023

Hyperammonemia in a carbamoyl-phosphate synthetase 1 deficiency recipient after living-donor liver transplantation from a carrier donor: a case report.

Frontiers in medicine
2024

Follow-up to 'Glycaemic management in a child with ornithine transcarbamylase deficiency undergoing cardiac surgery with hypothermic cardiopulmonary bypass'.

Anaesthesia reports
2024

Father-to-daughter transmission in late-onset OTC deficiency: an underestimated mechanism of inheritance of an X-linked disease.

Orphanet journal of rare diseases
2023

Adult presentation of ornithine transcarbamylase deficiency: a possible cause of hyperammonemia after high-dose chemotherapy and stem cell transplantation.

Hematology (Amsterdam, Netherlands)
2024

The management and clinical outcomes of pregnancies in women with urea cycle disorders: A review of the literature and results of an international survey.

Journal of inherited metabolic disease
2024

Severity-adjusted evaluation of liver transplantation on health outcomes in urea cycle disorders.

Genetics in medicine : official journal of the American College of Medical Genetics
2023

Liver transplantation in ornithine transcarbamylase deficiency: A retrospective multicentre cohort study.

Molecular genetics and metabolism reports
2023

Induced pluripotent stem cell technology as diagnostic tool in patients with suspected ornithine transcarbamylase deficiency lacking genetic confirmation.

Molecular genetics and metabolism reports
2023

Hyperammonemia Encephalopathy due to Urea Cycle Disorder Precipitated by Gastrointestinal Bleed in the Setting of Prior Bariatric Surgery.

ACG case reports journal
2023

[Preliminary study of glyceryl phenylbutyrate therapy for Ornithine transcarbamylase deficiency and a literature review].

Zhonghua yi xue yi chuan xue za zhi = Zhonghua yixue yichuanxue zazhi = Chinese journal of medical genetics
2023

Diagnostic and Management Issues in Patients with Late-Onset Ornithine Transcarbamylase Deficiency.

Children (Basel, Switzerland)
2023

Genetic Therapy Approaches for Ornithine Transcarbamylase Deficiency.

Biomedicines
2023

Phenotypes of undiagnosed adults with actionable OTC and GLA variants.

HGG advances
2023

China nationwide landscape of 16 types inherited metabolic disorders: a retrospective analysis on 372,255 clinical cases.

Orphanet journal of rare diseases
2023

Lipid nanoparticle-targeted mRNA formulation as a treatment for ornithine-transcarbamylase deficiency model mice.

Molecular therapy. Nucleic acids
2023

Anesthesia management protocol for liver transplantation as treatment for ornithine transcarbamylase deficiency.

Paediatric anaesthesia
2023

Recapitulation of Skewed X-Inactivation in Female Ornithine Transcarbamylase-Deficient Primary Human Hepatocytes in the FRG Mouse: A Novel System for Developing Epigenetic Therapies.

Human gene therapy
2023

Evaluation of living donors for hereditary liver disease (siblings, heterozygotes).

Journal of hepatology
2023

The remarkable journey of one female individual with ornithine transcarbamylase deficiency diagnosed post-mortem.

JIMD reports
2023

[Neonate-onset ornithine transcarbamylase deficiency].

Zhongguo dang dai er ke za zhi = Chinese journal of contemporary pediatrics
2023

Acute onset of ornithine transcarbamylase deficiency after total anomalous pulmonary venous connection repair to a 2-day-old neonate.

Cardiology in the young
2023

Maternal-fetal outcomes of pregnancies in women treated at an inborn errors of metabolism unit.

Endocrinologia, diabetes y nutricion
2023

[Analysis of OTC gene variants in four children with delayed onset Ornithine transcarbamylase deficiency].

Zhonghua yi xue yi chuan xue za zhi = Zhonghua yixue yichuanxue zazhi = Chinese journal of medical genetics
2023

Delayed recognition of autism spectrum disorder and attention-deficit/hyperactivity disorder in a girl with ornithine transcarbamylase deficiency: A case report.

Medicine
2023

Evaluation of oxidative damage to biomolecules and inflammation in patients with urea cycle disorders.

Archives of biochemistry and biophysics
2023

Validation of a targeted metabolomics panel for improved second-tier newborn screening.

Journal of inherited metabolic disease
2022

Challenges of managing ornithine transcarbamylase deficiency in female heterozygotes.

Molecular genetics and metabolism reports
2022

Variable disease manifestations and metabolic management within a single family affected by ornithine transcarbamylase deficiency.

Molecular genetics and metabolism reports
2022

Benefits of tailored disease management in improving tremor, white matter hyperintensities, and liver enzymes in a child with heterozygous X-linked ornithine transcarbamylase deficiency.

Molecular genetics and metabolism reports
2022

Considerations for prenatal and postpartum management of a female patient with ornithine transcarbamylase deficiency.

Molecular genetics and metabolism reports
2022

A complex case of delayed diagnosis of ornithine transcarbamylase deficiency in an adult patient with multiple comorbidities.

Molecular genetics and metabolism reports
2022

A retrograde approach for liver gene transfer.

Molecular therapy. Methods &amp; clinical development
2022

Imaging of extrapontine myelinolysis preceding central pontine myelinolysis in a case of ornithine transcarbamylase deficiency with hyperammonaemia and hypokalaemia.

BMJ neurology open
2022

Late-Onset Ornithine Transcarbamylase Deficiency Complicated with Extremely High Serum Ammonia Level: Prompt Induction of Hemodialysis as the Key to Successful Treatment.

The American journal of case reports
2022

Three-Country Snapshot of Ornithine Transcarbamylase Deficiency.

Life (Basel, Switzerland)
2022

Marginal parental donors for pediatric living donor liver transplantation.

Current opinion in organ transplantation
2022

Severe loss of appetite and refusal to eat as severe side effect of glycerol phenylbutyrate.

JIMD reports
2022

Pathogenic variants of ornithine transcarbamylase deficiency: Nation-wide study in Japan and literature review.

Frontiers in genetics
2023

Adeno-associated virus vector-based gene therapies for pediatric diseases.

Pediatrics and neonatology
2022

A simple screening method for heterozygous female patients with ornithine transcarbamylase deficiency.

Molecular genetics and metabolism
2022

Surgical approach to supradiaphragmatic inferior vena cava in patients with metallic stent in the hepatic vein during repeat liver transplantation.

Pediatric transplantation
2023

Excretion of excess nitrogen and increased survival by loss of SLC6A19 in a mouse model of ornithine transcarbamylase deficiency.

Journal of inherited metabolic disease
2022

Predicting the disease severity in male individuals with ornithine transcarbamylase deficiency.

Annals of clinical and translational neurology
2022

Acute Fulminant Encephalopathy in an Adult due to Ornithine Transcarbamylase Deficiency.

Annals of Indian Academy of Neurology
2022

Hyperammonemia in a girl who inherited a likely pathogenic variant of the ornithine transcarbamylase gene from her asymptomatic father-A peculiar pattern of X-linked recessive inheritance.

Clinical case reports
2022

Psychological Stress Triggers a Hyperammonemia Episode in Patient with Ornithine Transcarbamylase Deficiency.

International journal of environmental research and public health
2022

Clinical findings of patients with hyperammonemia affected by urea cycle disorders with hepatic encephalopathy.

International journal of developmental neuroscience : the official journal of the International Society for Developmental Neuroscience
2022

Liver transplantation in rare late-onset ornithine transcarbamylase deficiency with central nervous system injury: A case report and review of the literature.

Brain and behavior
2022

Messenger RNA as a personalized therapy: The moment of truth for rare metabolic diseases.

International review of cell and molecular biology
2022

Liver transplantation for late-onset ornithine transcarbamylase deficiency: A case report.

World journal of clinical cases
2022

Ornithine Transcarbamylase Deficiency Presenting as Acute Encephalopathy After Strabismus Surgery.

Cureus
2022

Glycaemic management in a child with ornithine transcarbamylase deficiency undergoing cardiac surgery with hypothermic cardiopulmonary bypass.

Anaesthesia reports
2022

Moving towards a novel therapeutic strategy for hyperammonemia that targets glutamine metabolism.

Journal of inherited metabolic disease
2022

A serendipitous journey to a promoter variant: The c.-106C>A variant and its role in late-onset ornithine transcarbamylase deficiency.

JIMD reports
2022

Hepatic Encephalopathy Is Not Always due to Liver Cirrhosis.

Case reports in gastroenterology
2022

Ornithine transcarbamylase deficiency: A diagnostic odyssey.

Journal of inherited metabolic disease
2022

Unmet Needs of Parents of Children with Urea Cycle Disorders.

Children (Basel, Switzerland)
2022

A promoter variant in the OTC gene associated with late and variable age of onset hyperammonemia.

Journal of inherited metabolic disease
2022

Ornithine transcarbamylase deficiency and pregnancy: A case series and review of recommendations.

Case reports in women's health
2022

Case Report: Juvenile Myelomonocytic Leukemia Underlying Ornithine Transcarbamylase Deficiency Safely Treated Using Hematopoietic Stem Cell Transplantation.

Frontiers in pediatrics
2022

Clinical diagnosis of metabolic disorders using untargeted metabolomic profiling and disease-specific networks learned from profiling data.

Scientific reports
2022

Corticosteroid suppresses urea-cycle-related gene expressions in ornithine transcarbamylase deficiency.

BMC gastroenterology
2022

Refractory Hyperammonemic encephalopathy in Fibrolamellar hepatocellular carcinoma, a case report and literature review.

Current problems in cancer
2022

Prenatal Diagnosis of Two Common Inborn Errors of Metabolism by Genetic and Mass Spectrometric Analysis of Amniotic Fluid.

Frontiers in pediatrics
2022

Prednisolone reduces the interferon response to AAV in cynomolgus macaques and may increase liver gene expression.

Molecular therapy. Methods &amp; clinical development
2022

Hemizygous deletion in the OTC gene results in ornithine transcarbamylase deficiency: A case report.

World journal of clinical cases
2022

Effect of Ornithine Transcarbamylase (OTC) Deficiency on Pregnancy and Puerperium.

Diagnostics (Basel, Switzerland)
2022

Hyperammonaemic Encephalopathy Caused by Adult-Onset Ornithine Transcarbamylase Deficiency.

Brain sciences
2022

Derivation of healthy hepatocyte-like cells from a female patient with ornithine transcarbamylase deficiency through X-inactivation selection.

Scientific reports
2022

Inborn error of metabolism patients after liver transplantation: Outcomes of 35 patients over 27 years in one pediatric quaternary hospital.

American journal of medical genetics. Part A
2022

Late-onset ornithine transcarbamylase deficiency mimicking a focal opercular syndrome.

Practical neurology
2022

4-Phenylbutyrate protects against rifampin-induced liver injury via regulating MRP2 ubiquitination through inhibiting endoplasmic reticulum stress.

Bioengineered
2021

Transient Cortical Blindness in a Toddler With Heterozygous Ornithine Transcarbamylase Deficiency.

Cureus
2022

Unfavorable clinical outcomes in patients with carbamoyl phosphate synthetase 1 deficiency.

Clinica chimica acta; international journal of clinical chemistry
2022

Placental Pathology in Maternal Ornithine Transcarbamylase Deficiency.

Pediatric and developmental pathology : the official journal of the Society for Pediatric Pathology and the Paediatric Pathology Society
2021

OTC intron 4 variations mediate pathogenic splicing patterns caused by the c.386G>A mutation in humans and spfash mice, and govern susceptibility to RNA-based therapies.

Molecular medicine (Cambridge, Mass.)
2022

Aquaporin 9 induction in human iPSC-derived hepatocytes facilitates modeling of ornithine transcarbamylase deficiency.

Hepatology (Baltimore, Md.)
2022

Late-onset of ornithine transcarbamylase deficiency: A rare medical examiner case.

Journal of forensic sciences
2021

Safety and efficacy of an engineered hepatotropic AAV gene therapy for ornithine transcarbamylase deficiency in cynomolgus monkeys.

Molecular therapy. Methods &amp; clinical development
2022

In Silico Analysis of a De Novo OTC Variant as a Cause of Ornithine Transcarbamylase Deficiency.

Applied immunohistochemistry &amp; molecular morphology : AIMM
2021

Differences in faecal microbiome composition between adult patients with UCD and PKU and healthy control subjects.

Molecular genetics and metabolism reports
2021

Creatine metabolism in patients with urea cycle disorders.

Molecular genetics and metabolism reports
2021

Adult-onset ornithine transcarbamylase deficiency as a rare cause of fatal hyperammonaemia.

Lancet (London, England)
2021

[Early-onset ornithine transcarbamylase deficiency in a pedigree].

Zhonghua er ke za zhi = Chinese journal of pediatrics
2021

Funneling venoplasty for anomalous graft left hepatic vein in living donor liver transplantation using a split left lateral section graft for an infant patient.

Annals of hepato-biliary-pancreatic surgery
2021

Role of liver transplantation in urea cycle disorders: Report from a nationwide study in Japan.

Journal of inherited metabolic disease
2021

Neurotoxic Effects of Ammonia in a Patient With Ornithine Transcarbamylase Deficiency and Bilateral Brain Abscesses: Case Report.

The Neurohospitalist
2021

Mycobacterium abscessus infection in a patient with ornithine transcarbamylase deficiency and liver transplant.

Pediatric dermatology
2021

Status epilepticus secondary to hyperammonaemia: a late presentation of an undiagnosed urea cycle defect.

BMJ case reports
2021

Liver Transplantation in Children with Urea Cycle Disorders: The Importance of Minimizing Waiting Time.

Liver transplantation : official publication of the American Association for the Study of Liver Diseases and the International Liver Transplantation Society
2021

Valproate-induced fatal acute hyperammonaemia-related encephalopathy in late-onset ornithine transcarbamylase deficiency.

BMJ case reports
2021

Review of Multi-Modal Imaging in Urea Cycle Disorders: The Old, the New, the Borrowed, and the Blue.

Frontiers in neurology
2021

Cholangiojejunostomy for multiple biliary ducts in living donor liver transplantation: A case report.

World journal of clinical cases
2021

Neuromyelitis Optica Complicated by Ornithine Transcarbamylase Deficiency Treated Safely with Pulse Steroid Therapy.

Internal medicine (Tokyo, Japan)
2021

Long-term outcome of urea cycle disorders: Report from a nationwide study in Japan.

Journal of inherited metabolic disease
2021

Physical, cognitive, and social status of patients with urea cycle disorders in Japan.

Molecular genetics and metabolism reports
2021

Identification of rare variants causing urea cycle disorders: A clinical, genetic, and biophysical study.

Journal of cellular and molecular medicine
2021

Expanding Role of Proton Magnetic Resonance Spectroscopy: Timely Diagnosis and Treatment Initiation in Partial Ornithine Transcarbamylase Deficiency.

Journal of pediatric genetics
2021

Generation of a human induced pluripotent stem cell line (SDQLCHi036-A) from a patient with ornithine transcarbamylase deficiency carrying a deletion involving 3-9 exons of OTC gene.

Stem cell research
2021

A deep intronic variant is a common cause of OTC deficiency in individuals with previously negative genetic testing.

Molecular genetics and metabolism reports
2021

Long-term correction of ornithine transcarbamylase deficiency in Spf-Ash mice with a translationally optimized AAV vector.

Molecular therapy. Methods &amp; clinical development
2021

Management of late onset urea cycle disorders-a remaining challenge for the intensivist?

Annals of intensive care
2020

Unification venoplasty of the outflow hepatic vein for laparoscopically harvested left liver grafts in pediatric living donor liver transplantation.

Korean journal of transplantation
2021

Acute liver dysfunction with delayed peak of serum aminotransferase levels as a presentation of ornithine transcarbamylase deficiency in females.

American journal of medical genetics. Part A
2021

Humanized liver mouse model with transplanted human hepatocytes from patients with ornithine transcarbamylase deficiency.

Journal of inherited metabolic disease
2020

Clinical and molecular characteristics of 69 Chinese patients with ornithine transcarbamylase deficiency.

Orphanet journal of rare diseases
2020

An Exon-Specific Small Nuclear U1 RNA (ExSpeU1) Improves Hepatic OTC Expression in a Splicing-Defective spf/ash Mouse Model of Ornithine Transcarbamylase Deficiency.

International journal of molecular sciences
2020

[Consensus on diagnosis and treatment of ornithine trans-carbamylase deficiency].

Zhejiang da xue xue bao. Yi xue ban = Journal of Zhejiang University. Medical sciences
2021

The role of orotic acid measurement in routine newborn screening for urea cycle disorders.

Journal of inherited metabolic disease
2020

Considering Proximal Urea Cycle Disorders in Expanded Newborn Screening.

International journal of neonatal screening
2020

Late-onset ornithine transcarbamylase deficiency: a rare cause of recurrent abnormal behavior in adults.

Acute medicine &amp; surgery
2020

The Application of Next-Generation Sequencing (NGS) in Neonatal-Onset Urea Cycle Disorders (UCDs): Clinical Course, Metabolomic Profiling, and Genetic Findings in Nine Chinese Hyperammonemia Patients.

BioMed research international
2020

Hemodynamics of Prefrontal Cortex in Ornithine Transcarbamylase Deficiency: A Twin Case Study.

Frontiers in neurology
2021

Hyperammonemic Encephalopathy Mimicking Ornithine Transcarbamylase Deficiency in Fibrolamellar Hepatocellular Carcinoma: Successful Treatment with Continuous Venovenous Hemofiltration and Ammonia Scavengers.

Cancer research and treatment
2020

Retrospective evaluations revealed pre-symptomatic citrulline concentrations measured by newborn screening were significantly low in late-onset ornithine transcarbamylase deficiency patients.

Clinica chimica acta; international journal of clinical chemistry
2020

Late-Onset Ornithine Transcarbamylase Deficiency and Variable Phenotypes in Vietnamese Females With OTC Mutations.

Frontiers in pediatrics
2020

Urinary Uracil: A Useful Marker for Ornithine Transcarbamylase Deficiency in Affected Males.

Clinical chemistry
2020

Chemotherapy in a Breast Cancer Patient Heterozygous Carrier of Ornithine Transcarbamylase Deficiency.

Cureus
2020

Clinical and biochemical characteristics of patients with ornithine transcarbamylase deficiency.

Clinical biochemistry
2020

Utility of metabolic screening in neurological presentations of infancy.

Annals of clinical and translational neurology
2021

Neonatal debut of ornithine transcarbamylase deficiency with severe hyperammoniemia.

Medicina clinica
2020

A novel splice site mutation in OTC gene of a female with ornithine transcarbamylase deficiency and her asymptomatic mosaic father.

Journal of genetics
2020

Clinical and genetic analysis of five Chinese patients with urea cycle disorders.

Molecular genetics &amp; genomic medicine
2020

Late Onset Ornithine Transcarbamylase Deficiency Triggered by an Acute Increase in Protein Intake: A Review of 10 Cases Reported in the Literature.

Case reports in genetics
2020

Ornithine Transcarbamylase Deficiency Presenting as Acute Liver Failure in Girls: A Paediatric Case Series.

Journal of pediatric gastroenterology and nutrition
2020

Ethnic variability in newborn metabolic screening markers associated with false-positive outcomes.

Journal of inherited metabolic disease
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Doenças relacionadas

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Referências e fontes

Bases de dados externas citadas neste artigo

Publicações científicas

Artigos indexados no PubMed ligados a esta doença no grafo RarasNet — título, periódico e PMID direto da fonte, sem intermediação de IA.

  1. Emerging neurological and cognitive symptoms in patients with late-onset ornithine transcarbamylase deficiency: a narrative review.
    Metabolic brain disease· 2026· PMID 41824151mais citado
  2. Pediatric liver transplantation for inherited metabolic disease-Current challenges.
    Saudi journal of gastroenterology : official journal of the Saudi Gastroenterology Association· 2026· PMID 41793380mais citado
  3. Clinical heterogeneity, genotype, and neurological outcomes in six Palestinian patients with ornithine transcarbamylase deficiency.
    BMC pediatrics· 2026· PMID 41787340mais citado
  4. Impact of long-term nitrogen scavenger therapy on clinical outcome in individuals with urea cycle disorders.
    Scientific reports· 2026· PMID 41851188mais citado
  5. Hyperammonemia-Associated Stroke-Like Episodes and Acute Liver Failure in an 11-Month-Old Infant With Probable Ornithine Transcarbamylase Deficiency: Diagnostic and Therapeutic Challenges in a Resource-Limited Setting.
    Cureus· 2026· PMID 41768218mais citado

Bases de dados e fontes oficiais

Identificadores e referências canônicas usadas para montar este verbete.

  1. ORPHA:664(Orphanet)
  2. OMIM OMIM:311250(OMIM)
  3. MONDO:0010703(MONDO)
  4. GARD:8391(GARD (NIH))
  5. Variantes catalogadas(ClinVar)
  6. Busca completa no PubMed(PubMed)
  7. Artigo Wikipedia(Wikipedia)
  8. Q3043161(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

Deficiência de ornitina carbamoiltransferase
Compêndio · Raras BR

Deficiência de ornitina carbamoiltransferase

ORPHA:664 · MONDO:0010703
Prevalência
1-9 / 100 000
Herança
X-linked recessive
CID-10
E72.4 · Distúrbios do metabolismo da ornitina
CID-11
Ensaios
8 ativos
Início
All ages
Prevalência
1.0 (Europe)
MedGen
UMLS
C0268542
EuropePMC
Wikidata
Wikipedia
Papers 10a
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