Raras
Buscar doenças, sintomas, genes...
PMM2-CDG
ORPHA:79318CID-10 · E77.8CID-11 · 5C54.0OMIM 212065DOENÇA RARA

É a forma mais comum de um distúrbio congênito (de nascença) da N-glicosilação. Caracteriza-se por disfunção cerebelar (problemas no cerebelo, a parte do cérebro que controla o equilíbrio e a coordenação), distribuição anormal de gordura, mamilos invertidos, estrabismo (olhos vesgos) e hipotonia (músculos flácidos ou fracos). Podem-se distinguir 3 formas de PMM2-CDG: o tipo infantil multissistêmico (que afeta vários sistemas do corpo), o tipo infantil tardio e infantil com ataxia (falta de coordenação) e deficiência intelectual (entre 3 e 10 anos), e o tipo adulto com deficiência estável. Bebês geralmente desenvolvem ataxia, atraso psicomotor (atraso para aprender a andar, falar, etc.) e manifestações extraneurológicas (sintomas fora do sistema nervoso), incluindo dificuldade de crescimento, problemas intestinais, disfunção hepática (problemas no fígado), anormalidades na coagulação (problemas de coagulação do sangue) e envolvimento cardíaco e renal (problemas no coração e nos rins). No entanto, a forma como a doença se apresenta é muito variável, podendo ir desde bebês que falecem no primeiro ano de vida até adultos com sintomas leves.

Mantido por Agente Raras·Colaborar como especialista →

Introdução

O que você precisa saber de cara

📋

É a forma mais comum de um distúrbio congênito (de nascença) da N-glicosilação. Caracteriza-se por disfunção cerebelar (problemas no cerebelo, a parte do cérebro que controla o equilíbrio e a coordenação), distribuição anormal de gordura, mamilos invertidos, estrabismo (olhos vesgos) e hipotonia (músculos flácidos ou fracos). Podem-se distinguir 3 formas de PMM2-CDG: o tipo infantil multissistêmico (que afeta vários sistemas do corpo), o tipo infantil tardio e infantil com ataxia (falta de coordenação) e deficiência intelectual (entre 3 e 10 anos), e o tipo adulto com deficiência estável. Bebês geralmente desenvolvem ataxia, atraso psicomotor (atraso para aprender a andar, falar, etc.) e manifestações extraneurológicas (sintomas fora do sistema nervoso), incluindo dificuldade de crescimento, problemas intestinais, disfunção hepática (problemas no fígado), anormalidades na coagulação (problemas de coagulação do sangue) e envolvimento cardíaco e renal (problemas no coração e nos rins). No entanto, a forma como a doença se apresenta é muito variável, podendo ir desde bebês que falecem no primeiro ano de vida até adultos com sintomas leves.

Pesquisas ativas
2 ensaios
6 total registrados no ClinicalTrials.gov
Publicações científicas
235 artigos
Último publicado: 2026 Apr
Medicamentos
2 registrados
EPALRESTAT, ACETAZOLAMIDE

Tem tratamento?

2 medicamentos registrados
Ver detalhes, fases e interações →
EPALRESTATACETAZOLAMIDE

Escala de raridade

CLASSIFICAÇÃO ORPHANET · BRASIL 2024
Unknown
Ultra-rara
<1/50k
Muito rara
1/20k
Rara
1/10k
Pouco freq.
1/5k
Incomum
1/2k
Prevalência
0.0
Worldwide
Início
Infancy
+ neonatal
🏥
SUS: Cobertura mínimaScore: 15%
CID-10: E77.8
🇧🇷Dados SUS / DATASUS
PROCEDIMENTOS SIGTAP (6)
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)
0301070040
Atendimento em reabilitação — doenças raras
Você se identifica com essa condição?
O Raras está aqui pra te apoiar — com ou sem diagnóstico

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

🧠
Neurológico
17 sintomas
😀
Face
12 sintomas
📏
Crescimento
11 sintomas
🫃
Digestivo
8 sintomas
🦴
Ossos e articulações
8 sintomas
🩸
Sangue
7 sintomas

+ 52 sintomas em outras categorias

Características mais comuns

100%prev.
Fissura palpebral em forma de amêndoa
Frequência: 3/3
100%prev.
Perfil de isoforma de transferrina tipo I
Frequência: 23/23
100%prev.
Fraqueza muscular
Frequência: 20/20
100%prev.
Atividade reduzida da fosfomanomutase tecidual
Frequência: 3/3
100%prev.
Fibrose hepática
Ocasional (29-5%)
92%prev.
Ataxia
Ocasional (29-5%)
138sintomas
Muito frequente (13)
Frequente (44)
Ocasional (47)
Muito raro (11)
Sem dados (23)

Os sintomas variam de pessoa para pessoa. Abaixo estão as 138 características clínicas mais associadas, ordenadas por frequência.

Fissura palpebral em forma de amêndoaAlmond-shaped palpebral fissure
Frequência: 3/3100%
Perfil de isoforma de transferrina tipo IType I transferrin isoform profile
Frequência: 23/23100%
Fraqueza muscularMuscle weakness
Frequência: 20/20100%
Atividade reduzida da fosfomanomutase tecidualReduced tissue phosphomannomutase activity
Frequência: 3/3100%
Fibrose hepáticaHepatic fibrosis
Ocasional (29-5%)100%

Linha do tempo da pesquisa

Publicações por ano — veja quando o interesse científico cresceu
Anos de pesquisa1desde 2026
Total histórico235PubMed
Últimos 10 anos187publicações
Pico202525 papers
Linha do tempo
2026Hoje · 2026🧪 2018Primeiro ensaio clínico📈 2025Ano 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: Autosomal recessive.

PMM2Phosphomannomutase 2Disease-causing germline mutation(s) inTolerante
FUNÇÃO

Involved in the synthesis of the GDP-mannose and dolichol-phosphate-mannose required for a number of critical mannosyl transfer reactions

LOCALIZAÇÃO

Cytoplasm

VIAS BIOLÓGICAS (1)
Synthesis of GDP-mannose
MECANISMO DE DOENÇA

Congenital disorder of glycosylation 1A

A form of congenital disorder of glycosylation, a multisystem disorder caused by a defect in glycoprotein biosynthesis and characterized by under-glycosylated serum glycoproteins. Congenital disorders of glycosylation result in a wide variety of clinical features, such as defects in the nervous system development, psychomotor retardation, dysmorphic features, hypotonia, coagulation disorders, and immunodeficiency. The broad spectrum of features reflects the critical role of N-glycoproteins during embryonic development, differentiation, and maintenance of cell functions. CDG1A is an autosomal recessive disorder characterized by a severe encephalopathy with axial hypotonia, abnormal eye movement, and pronounced psychomotor retardation, as well as peripheral neuropathy, cerebellar hypoplasia, and retinitis pigmentosa. Patients show a peculiar distribution of subcutaneous fat, nipple retraction, and hypogonadism.

EXPRESSÃO TECIDUAL(Ubíquo)
Fibroblastos
31.1 TPM
Linfócitos
27.3 TPM
Esôfago - Mucosa
15.7 TPM
Glândula salivar
15.1 TPM
Cólon transverso
11.8 TPM
OUTRAS DOENÇAS (1)
PMM2-congenital disorder of glycosylation
HGNC:9115UniProt:O15305

Medicamentos e terapias

EPALRESTATPhase 3

Mecanismo: Aldose reductase inhibitor

ACETAZOLAMIDEPhase 2

Mecanismo: Carbonic anhydrase XII inhibitor

Ver mais no OpenTargets

Variantes genéticas (ClinVar)

340 variantes patogênicas registradas no ClinVar.

🧬 PMM2: NM_000303.3(PMM2):c.256-1G>T ()
🧬 PMM2: NM_000303.3(PMM2):c.191dup (p.Tyr64Ter) ()
🧬 PMM2: NM_000303.3(PMM2):c.395T>G (p.Ile132Ser) ()
🧬 PMM2: NM_000303.3(PMM2):c.683G>T (p.Gly228Val) ()
🧬 PMM2: NM_000303.3(PMM2):c.640-14T>G ()
Ver todas no ClinVar

Vias biológicas (Reactome)

2 vias biológicas associadas aos genes desta condição.

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.
3Fase 34
2Fase 23
Medicamentos catalogadosEnsaios clínicos· 2 medicamentos · 5 ensaios
Carregando informações de tratamento...

Onde tratar no SUS

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

🇧🇷 Atendimento SUS — PMM2-CDG

🗺️

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

1 pesquisa recrutando participantes. Converse com seu médico sobre a possibilidade de participar.

Outros ensaios clínicos

6 ensaios clínicos encontrados, 2 ativos.

Distribuição por fase
Ver todos no ClinicalTrials.gov
🧪 Está conduzindo uma pesquisa?
Divulgue para pacientes e familiares que acompanham esta doença.
Divulgar pesquisa →

Publicações mais relevantes

🥉Melhor nível de evidência: Relato de caso
Timeline de publicações
191 papers (10 anos)
#1

Exploring Secondary Biotinidase Deficiency and Biotin Supplementation in PMM2-CDG.

Neuropediatrics2026 Feb

The congenital disorders of glycosylation (CDG) encompass >190 multiorgan disorders with predominantly neurodevelopmental phenotypes with no causative treatment available. The glycoprotein biotinidase (BTD) provides biotin, an essential cofactor for carboxylases in ubiquitous metabolic pathways. Individuals with (partial) BTD deficiency (BTDD) and CDG patients show overlapping phenotypes like movement disorders, seizures, and neurodevelopmental issues. Biotin is a water-soluble, inexpensive, and safe food supplement. Patients with primary BTDD respond well to oral biotin supplement. We here explore secondary BTDD and the effect of biotin supplementation in PMM2-CDG in an initial open-label study.BTD activity in dried blood spots from 29 individuals with PMM2-CDG indicated a mean reduction to 27% (range: 23.0-40.5%) at group level. Patients (mean: 19.6 ± 11.9 years) were supplemented with 10 mg biotin daily for 12 months. The parents/caretaker reported positive responses in 62 to 69% of patients across seven (performance, social, at home, self-control, self-care, leisure, health) of the nine categories covered by the Adaptive Behavior Assessment System-II (ABAS-II) questionnaires. The reported positive effect of biotin supplementation differed between age groups, ranging from 54% (16-43 years) via 62% (2-5 years) to 80% (6-13 years). Its effect was reported to be the highest in the moderate to severely affected patient subgroups, with significant improvements in home functioning, health, performance, leisure, self-control. No adverse effects were reported.Given the absence of other treatments, the supportive effect of Biotin in PMM2-CDG deserves further exploration.

#2

Unilateral Multicystic Dysplastic Kidney in a Fetus Associated With Parental Genetic and Environmental Risk Factors: A Case Report.

Cureus2026 Jan

Multicystic dysplastic kidney (MCDK) is a congenital renal anomaly identified on prenatal ultrasound. They often arise sporadically and unilaterally. Our case involves an isolated unilateral MCDK in a fetus born to a mother with generalized anxiety disorder (GAD), obsessive-compulsive disorder (OCD), and gastroesophageal reflux disease (GERD), with the father having chronic occupational lead exposure and a congenital disorder of glycosylation type 1A (PMM2-CDG). Our case highlights the multifactorial etiology of renal dysplasia and its potential role of glycosylation defects and environmental toxicity in abnormal kidney development. Contributions from genetic, environmental, and metabolic influences during nephrogenesis contribute to MCDK.

#3

A founder variant in Tunisian PMM2-CDG patients: An integrated clinical, radiological, biochemical, and genetic study.

Molecular genetics and metabolism2026 Apr

PMM2-CDG is the most common congenital disorder of glycosylation, characterized by a broad phenotypic spectrum involving the nervous system and multiple other organ systems. The disorder is caused by biallelic variants in the PMM2 gene, leading to impaired glycosylation of proteins. Our objective was to provide a detailed clinical characterization and define the mutational spectrum of PMM2-CDG in the Tunisian population. We conducted a retrospective study on patients with genetically confirmed PMM2-CDG, followed between 2005 and 2024. Ten patients from six unrelated Tunisian families were enrolled. All presented with neurological symptoms, including psychomotor delay (10/10), cerebellar ataxia (9/10) and strabismus (9/10). Brain MRI revealed cerebellar atrophy in all patients. Dysmorphic features were common including almond-shaped eyes (9/10), large mouth (6/10), and thin upper lip (6/10). Skeletal anomalies were observed in 9/10 patients. Peripheral neuropathy was confirmed in 6/7 patients. Laboratory analyses revealed elevated transaminases (6/10), hypocholesterolemia (7/10), elevated LDH (7/10), hypoalbuminemia (2/6), and IgA deficiency (3/5). Renal anomalies included hyperechogenicity (2/9) and a duplicated collecting system (1/9). Genetic analysis revealed a homozygous variant NM_000303.3(PMM2): c.395 T > C; p.(Ile132Thr) in all patients. Haplotype analysis of the PMM2 locus showed that all 6 families shared an identical allele. In conclusion, this is the first study to characterize the clinical and genetic profile of PMM2-CDG in the Tunisian population. Despite a shared genotype, patients exhibited moderate neurological phenotypes with inter- and intrafamilial variability. The recurrent homozygous c.395 T > C; p.(Ile132Thr) variant and identical haplotype confirm a founder effect in the Tunisian population.

#4

Albumin as a glycoprotein biomarker in congenital disorders of glycosylation.

Molecular genetics and metabolism2026 Apr

Congenital disorders of glycosylation (CDG) are rare inherited disorders resulting from defects in cellular glycosylation machinery. Albumin has recently been shown to be N-glycosylated at two non-canonical glycosylation sites. We applied multiplexed mass spectrometry-based glycoproteomics to identify site-specific N-glycosylation alterations in albumin from patients with PMM2-CDG, MPI-CDG, SRD5A3-CDG, MAN1B1-CDG and PGM1-CDG. Our findings demonstrate that the glycosylation of albumin is indeed affected in CDG and indicate a potential role for albumin-derived glycopeptides as diagnostic biomarkers.

#5

PMM2-CDG and the Role of Liver Transplantation as a Long-Term Solution: A Case Report.

Pediatric transplantation2026 Jan

Phosphomannomutase-2 congenital disorder of glycosylation (PMM2-CDG) is the most common congenital disorder of glycosylation, affecting protein glycosylation across multiple organ systems. Hepatic involvement may range from isolated elevations in liver transaminases to end-stage liver disease. Reported outcomes of liver transplantation as a treatment modality are sparse. We describe one of the first reported cases of liver transplantation in a child with PMM2-CDG and interim post-transplant outcomes. This patient was diagnosed at 4 months of age after presenting with failure to thrive, lipodystrophy, hypotonia, developmental delay, elevated transaminases, hypoalbuminemia, and coagulopathy. He developed cirrhosis and portal hypertension as well as sequelae of poor protein glycosylation. All these included coagulopathy, protein-losing enteropathy, and refractory ascites requiring serial intravenous fresh frozen plasma and furosemide. He ultimately underwent a liver transplant, after which his ascites resolved. Post-transplant, he developed new-onset recurrent pericardial effusions, suspected to be from a viral etiology versus extrahepatic manifestations of PMM2-CDG, and elevated transaminases following transplantation. Liver transplantation may offer clinical benefit in PMM2-CDG with severe hepatic involvement, including resolution of ascites and improved quality of life, due to its potential to restore liver glycosylation function. However, this is only a partial correction as persistent extrahepatic manifestations underscore the need for further research into transplant outcomes and systemic disease progression in CDG.

Publicações recentes

Ver todas no PubMed

📚 EuropePMC110 artigos no totalmostrando 183

2026

Unilateral Multicystic Dysplastic Kidney in a Fetus Associated With Parental Genetic and Environmental Risk Factors: A Case Report.

Cureus
2026

A founder variant in Tunisian PMM2-CDG patients: An integrated clinical, radiological, biochemical, and genetic study.

Molecular genetics and metabolism
2026

Albumin as a glycoprotein biomarker in congenital disorders of glycosylation.

Molecular genetics and metabolism
2026

PMM2-CDG and the Role of Liver Transplantation as a Long-Term Solution: A Case Report.

Pediatric transplantation
2025

Establishing an auxin-inducible GFP nanobody-based acute protein knockdown system to mimic hypomorphic mutations during early medaka embryogenesis.

Biology open
2025

Treatment of Single Patient With PMM2-Congenital Disorder of Glycosylation With Govorestat (AT-007), an Aldose Reductase Inhibitor.

JIMD reports
2025

Exploring a Circulating miRNA Signature for PMM2-CDG: Initial Insights Toward Diagnosis, Stratification, and Monitoring.

Journal of inherited metabolic disease
2025

Suspected Central Adrenal Insufficiency in a Patient with Phosphomannomutase 2-Congenital Disorder of Glycosylation.

JCEM case reports
2026

Exploring Secondary Biotinidase Deficiency and Biotin Supplementation in PMM2-CDG.

Neuropediatrics
2025

Immunopathology in PMM2-CDG: Defective glycosylation impact in the TNFα -TNFR1 signalling pathway.

Frontiers in immunology
2025

Investigation of the Clinical and Genetic Spectrum of PMM2-CDG: Insights from a Family with a Novel Variant and Previous Studies.

Archives of Iranian medicine
2026

Activity values of the enzyme phosphomanomutase 2 for diagnosing the CDG Ia glycosylation defect.

Clinica chimica acta; international journal of clinical chemistry
2025

AAV-based gene replacement reverses Neurexin-2 downregulation in the cerebellum of a mouse model of phosphomannomutase 2 deficiency (PMM2-CDG).

bioRxiv : the preprint server for biology
2025

Phosphomannomutase 2-congenital disorder of glycosylation: exploring the role of N-glycosylation on the endocrine axes.

Frontiers in endocrinology
2025

Predicting disease-overarching therapeutic approaches for congenital disorders of glycosylation using multi-OMICS.

Molecular genetics and metabolism
2025

Incidence and prevalence of phosphomannomutase 2-congenital disorder of glycosylation: Past, present, and future.

Molecular genetics and metabolism
2025

In Silico Analysis of Phosphomannomutase-2 Dimer Interface Stability and Heterodimerization with Phosphomannomutase-1.

Molecules (Basel, Switzerland)
2025

Multiorgan involvement and genetic spectrum of 20 Chinese patients with PMM2-CDG.

Molecular genetics and metabolism
2025

Novel mouse model reveals neurodevelopmental origin of PMM2-CDG brain pathology.

bioRxiv : the preprint server for biology
2025

Targeted metabolomic evaluation of peripheral blood mononucleated cells from patients with PMM2-CDG.

Scientific reports
2025

A comprehensive update of genotype-phenotype correlations in PMM2-CDG: insights from molecular and structural analyses.

Orphanet journal of rare diseases
2024

Genotype/Phenotype Relationship: Lessons From 137 Patients With PMM2-CDG.

Human mutation
2025

Clinical and Molecular Features of Patients With Congenital Disorders of Glycosylation in Japan.

JIMD reports
2025

Beneficial effects of Glc-1,6-P2 modulation on mutant phosphomannomutase-2.

Biochimica et biophysica acta. Molecular cell research
2025

Goal attainment in PMM2-CDG: A new approach measuring meaningful clinical outcomes.

Molecular genetics and metabolism
2025

AAV-based gene replacement therapy prevents and halts manifestation of abnormal neurological phenotypes in a novel mouse model of PMM2-CDG.

Gene therapy
2025

Cysteine variants in PMM2 lead to protein instability and higher sensitivity to oxidative stress in PMM2-CDG.

International journal of biological macromolecules
2025

Causes of mortality in the congenital disorders of glycosylation.

Molecular genetics and metabolism
2025

Clinical severity and cardiac phenotype in phosphomannomutase 2-congenital disorders of glycosylation : Insights into genetics and management recommendations.

Journal of inherited metabolic disease
2024

O-GlcNAcylation modulates expression and abundance of N-glycosylation machinery in an inherited glycosylation disorder.

Cell reports
2024

Mapping the diagnostic odyssey of congenital disorders of glycosylation (CDG): insights from the community.

Orphanet journal of rare diseases
2024

Sensitivity of transferrin isoform analysis for PMM2-CDG.

Molecular genetics and metabolism
2025

Neurodevelopmental profiles of 14 individuals with phosphomannomutase deficiency (PMM2-CDG).

Journal of inherited metabolic disease
2024

HepG2 PMM2-CDG knockout model: A versatile platform for variant and therapeutic evaluation.

Molecular genetics and metabolism
2024

In vitro treatment with liposome-encapsulated Mannose-1-phosphate restores N-glycosylation in PMM2-CDG patient-derived fibroblasts.

Molecular genetics and metabolism
2024

Frontiers in congenital disorders of glycosylation consortium, a cross-sectional study report at year 5 of 280 individuals in the natural history cohort.

Molecular genetics and metabolism
2024

Cardiomyopathy, an uncommon phenotype of congenital disorders of glycosylation: Recommendations for baseline screening and follow-up evaluation.

Molecular genetics and metabolism
2024

Liposome-encapsulated mannose-1-phosphate therapy improves global N-glycosylation in different congenital disorders of glycosylation.

Molecular genetics and metabolism
2024

Transcriptomic analysis identifies dysregulated pathways and therapeutic targets in PMM2-CDG.

Biochimica et biophysica acta. Molecular basis of disease
2024

Deficient glycan extension and endoplasmic reticulum stresses in ALG3-CDG.

Journal of inherited metabolic disease
2024

A complement C4-derived glycopeptide is a biomarker for PMM2-CDG.

JCI insight
2024

Revisiting the immunopathology of congenital disorders of glycosylation: an updated review.

Frontiers in immunology
2024

Glycosphingolipids in congenital disorders of glycosylation (CDG).

Molecular genetics and metabolism
2024

Exploring ligand interactions with human phosphomannomutases using recombinant bacterial thermal shift assay and biochemical validation.

Biochimie
2024

Resilience in patients and family caregivers living with congenital disorders of glycosylation (CDG): a quantitative study using the brief resilience coping scale (BRCS).

Orphanet journal of rare diseases
2024

Neural and metabolic dysregulation in PMM2-deficient human in vitro neural models.

Cell reports
2024

Motor improvement in children with PMM2-CDG syndrome following a six-month rehabilitation treatment utilising whole-body vibration; a retrospective study.

Journal of musculoskeletal &amp; neuronal interactions
2024

Instrumented assessment of gait disturbance in PMM2-CDG adults: a feasibility analysis.

Orphanet journal of rare diseases
2024

AAV9-based PMM2 gene replacement augments PMM2 expression and improves glycosylation in primary fibroblasts of patients with phosphomannomutase 2 deficiency (PMM2-CDG).

Molecular genetics and metabolism reports
2023

Untangling adaptive functioning of PMM2-CDG across age and its impact on parental stress: a cross-sectional study.

Scientific reports
2024

ReBaTSA: A simplified CeTSA protocol for studying recombinant mutant proteins in bacterial extracts.

Biochimica et biophysica acta. General subjects
2024

Neurological manifestations in PMM2-congenital disorders of glycosylation (PMM2-CDG): Insights into clinico-radiological characteristics, recommendations for follow-up, and future directions.

Genetics in medicine : official journal of the American College of Medical Genetics
2024

"Hide and seek": Misleading transferrin variants in PMM2-CDG complicate diagnostics.

Proteomics. Clinical applications
2023

Congenital disorders of glycosylation: narration of a story through its patents.

Orphanet journal of rare diseases
2023

Interplay of Impaired Cellular Bioenergetics and Autophagy in PMM2-CDG.

Genes
2023

Combined PMM2-CDG and hereditary fructose intolerance in a patient with mild clinical presentation.

Molecular genetics and metabolism
2023

An oligogenic case of severe neonatal thrombocytopenia and a purportedly benign variant in GFI1B requiring reinterpretation.

Platelets
2023

Association between acute complications in PMM2-CDG patients and haemostasis anomalies: Data from a multicentric study and suggestions for acute management.

Molecular genetics and metabolism
2023

Metabolic adaptation of human skin fibroblasts to ER stress caused by glycosylation defect in PMM2-CDG.

Molecular genetics and metabolism
2023

PMM2 -CDG T237M Mutation in a Patient with Cerebral Palsy-Like Phenotypes Reported from South India.

Global medical genetics
2023

A liposomal carbohydrate vaccine, adjuvanted with an NKT cell agonist, induces rapid and enhanced immune responses and antibody class switching.

Journal of nanobiotechnology
2023

Tracer metabolomics reveals the role of aldose reductase in glycosylation.

Cell reports. Medicine
2023

Complex metabolic disharmony in PMM2-CDG paves the way to new therapeutic approaches.

Molecular genetics and metabolism
2023

Coagulation abnormalities in a prospective cohort of 50 patients with PMM2-congenital disorder of glycosylation.

Molecular genetics and metabolism
2022

Congenital disorder of glycosylation - one size does not fit all: a parent's perspective.

Therapeutic advances in rare disease
2023

Unique clinical presentations and follow-up outcomes from experience with congenital disorders of glycosylation: PMM2-PGM1-DPAGT1-MPI-POMT2-B3GALNT2-DPM1-SRD5A3-CDG.

Journal of pediatric endocrinology &amp; metabolism : JPEM
2023

Liver transplantation recovers hepatic N-glycosylation with persistent IgG glycosylation abnormalities: Three-year follow-up in a patient with phosphomannomutase-2-congenital disorder of glycosylation.

Molecular genetics and metabolism
2023

[Advances in the diagnosis and treatment of phosphomannomutase 2 deficiency].

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

Phosphomannomutase 2 (PMM2) variants leading to hyperinsulinism-polycystic kidney disease are associated with early-onset inflammatory bowel disease and gastric antral foveolar hyperplasia.

Human genetics
2023

Cysteine Pathogenic Variants of PMM2 Are Sensitive to Environmental Stress with Loss of Structural Stability.

Oxidative medicine and cellular longevity
2023

Elevated oxysterol and N-palmitoyl-O-phosphocholineserine levels in congenital disorders of glycosylation.

Journal of inherited metabolic disease
2022

Hyperinsulinemic Hypoglycemia Due to PMM2 Mutation in Two Siblings with Autosomal Recessive Polycystic Kidney Disease.

Pediatric reports
2022

Patient reported outcomes for phosphomannomutase 2 congenital disorder of glycosylation (PMM2-CDG): listening to what matters for the patients and health professionals.

Orphanet journal of rare diseases
2022

A Participatory Framework for Plain Language Clinical Management Guideline Development.

International journal of environmental research and public health
2022

A PMM2-CDG caused by an A108V mutation associated with a heterozygous 70 kilobases deletion case report.

Italian journal of pediatrics
2022

Evolutionary rescue of phosphomannomutase deficiency in yeast models of human disease.

eLife
2022

A functional platform for the selection of pathogenic variants of PMM2 amenable to rescue via the use of pharmacological chaperones.

Human mutation
2022

A 6-Month-Old Infant with Severe Failure to Thrive during COVID-19 Pandemic.

Clinical chemistry
2022

Evaluation of Cell Models to Study Monocyte Functions in PMM2 Congenital Disorders of Glycosylation.

Frontiers in immunology
2022

Patient-reported outcomes and quality of life in PMM2-CDG.

Molecular genetics and metabolism
2022

Hyperinsulinism May Be Underreported in Hypoglycemic Patients with Phosphomannomutase 2 Deficiency.

Journal of clinical research in pediatric endocrinology
2022

The development of end stage renal disease in two patients with PMM2-CDG.

JIMD reports
2022

Defective IGF-1 prohormone N-glycosylation and reduced IGF-1 receptor signaling activation in congenital disorders of glycosylation.

Cellular and molecular life sciences : CMLS
2022

PMM2-CDG and nephrotic syndrome: A case report.

Clinical case reports
2021

Assessing the effects of PMM2 variants on protein stability.

Molecular genetics and metabolism
2022

Insight on molecular pathogenesis and pharmacochaperoning potential in phosphomannomutase 2 deficiency, provided by novel human phosphomannomutase 2 structures.

Journal of inherited metabolic disease
2021

Genotype-Phenotype Correlations in PMM2-CDG.

Genes
2021

Protease-dependent defects in N-cadherin processing drive PMM2-CDG pathogenesis.

JCI insight
2021

Stroke-Like Episodes in PMM2-CDG: When the Lack of Other Evidence Is the Only Evidence.

Frontiers in pediatrics
2021

Anthropometric Phenotype of Patients with PMM2-CDG.

Children (Basel, Switzerland)
2021

Sorbitol Is a Severity Biomarker for PMM2-CDG with Therapeutic Implications.

Annals of neurology
2022

TRAPPC11-related muscular dystrophy with hypoglycosylation of alpha-dystroglycan in skeletal muscle and brain.

Neuropathology and applied neurobiology
2021

The Estimated Prevalence of N-Linked Congenital Disorders of Glycosylation Across Various Populations Based on Allele Frequencies in General Population Databases.

Frontiers in genetics
2021

Skeletal and Bone Mineral Density Features, Genetic Profile in Congenital Disorders of Glycosylation: Review.

Diagnostics (Basel, Switzerland)
2021

Prevalence of Congenital Disorders of Glycosylation in Childhood Epilepsy and Effects of Anti-Epileptic Drugs on the Transferrin Isoelectric Focusing Test.

Genes
2022

Dissecting the transcriptional program of phosphomannomutase 2-deficient cells: Lymphoblastoide B cell lines as a valuable model for congenital disorders of glycosylation studies.

Glycobiology
2021

Mannose supplementation in PMM2-CDG.

Orphanet journal of rare diseases
2021

Non-functional alternative splicing caused by a Latino pathogenic variant in a case of PMM2-CDG.

Molecular genetics and metabolism reports
2021

Should patients with Phosphomannomutase 2-CDG (PMM2-CDG) be screened for adrenal insufficiency?

Molecular genetics and metabolism
2021

Recurrent fetal truncus arteriosus associated with PMM2-CDG.

JIMD reports
2021

Novel Treatment for Congenital Disorder of Glycosylation in a Patient with Novel Homozygote Mutation of PMM2: A Case Report and Review Literature.

Endocrine, metabolic &amp; immune disorders drug targets
2021

D-galactose supplementation in individuals with PMM2-CDG: results of a multicenter, open label, prospective pilot clinical trial.

Orphanet journal of rare diseases
2021

Congenital disorders of glycosylation in children - Histopathological and ultrastructural changes in the liver.

Pediatrics and neonatology
2021

Congenital disorders of glycosylation: Prevalence, incidence and mutational spectrum in the Polish population.

Molecular genetics and metabolism reports
2021

Spontaneous improvement of carbohydrate-deficient transferrin in PMM2-CDG without mannose observed in CDG natural history study.

Orphanet journal of rare diseases
2021

Clinical and radiological correlates of activities of daily living in cerebellar atrophy caused by PMM2 mutations (PMM2-CDG).

Cerebellum (London, England)
2021

Primary ovarian insufficiency in a female with phosphomannomutase-2 gene (PMM2) mutations for congenital disorder of glycosylation.

Endocrine journal
2021

Liver manifestations in a cohort of 39 patients with congenital disorders of glycosylation: pin-pointing the characteristics of liver injury and proposing recommendations for follow-up.

Orphanet journal of rare diseases
2021

Clinical, biochemical and molecular phenotype of congenital disorders of glycosylation: long-term follow-up.

Orphanet journal of rare diseases
2021

Congenital Disorders of Glycosylation in Portugal-Two Decades of Experience.

The Journal of pediatrics
2020

Fatal outcome after heart surgery in PMM2-CDG due to a rare homozygous gene variant with double effects.

Molecular genetics and metabolism reports
2020

Vascular ring anomaly in a patient with phosphomannomutase 2 deficiency: A case report and review of the literature.

JIMD reports
2020

Novel Splicing Variant in the PMM2 Gene in a Patient With PMM2-CDG Syndrome Presenting With Pericardial Effusion: A Case Report.

Frontiers in genetics
2020

Factor XII in PMM2-CDG patients: role of N-glycosylation in the secretion and function of the first element of the contact pathway.

Orphanet journal of rare diseases
2020

Dietary mannose supplementation in phosphomannomutase 2 deficiency (PMM2-CDG).

Orphanet journal of rare diseases
2020

Identification through exome sequencing of the first PMM2-CDG individual of Mexican mestizo origin.

Molecular genetics and metabolism reports
2020

New and potential strategies for the treatment of PMM2-CDG.

Biochimica et biophysica acta. General subjects
2020

PMM2-CDG caused by uniparental disomy: Case report and literature review.

JIMD reports
2020

New Insights into Immunological Involvement in Congenital Disorders of Glycosylation (CDG) from a People-Centric Approach.

Journal of clinical medicine
2020

Proteostasis regulators as potential rescuers of PMM2 activity.

Biochimica et biophysica acta. Molecular basis of disease
2020

Hypoglycemia in CDG patients due to PMM2 mutations: Follow up on hyperinsulinemic patients.

JIMD reports
2020

Genotypes and estimated prevalence of phosphomannomutase 2 deficiency in Turkey differ significantly from those in Europe.

American journal of medical genetics. Part A
2020

Novel PMM2 missense mutation in a Chinese family with non-syndromic premature ovarian insufficiency.

Journal of assisted reproduction and genetics
2021

Identification of potential inhibitors against pathogenic missense mutations of PMM2 using a structure-based virtual screening approach.

Journal of biomolecular structure &amp; dynamics
2019

Ophthalmological and electrophysiological findings in monozygotic twin sisters with phosphomannomutase 2 deficiency (PMM2-CDG) over a period of 37 years.

GMS ophthalmology cases
2019

Clinical and whole-exome sequencing findings in two siblings from Hani ethnic minority with congenital glycosylation disorders.

BMC medical genetics
2020

Transferrin isoelectric focusing for the investigation of congenital disorders of glycosylation: analysis of a ten-year experience in a Brazilian center.

Jornal de pediatria
2019

Unsuccessful intravenous D-mannose treatment in PMM2-CDG.

Orphanet journal of rare diseases
2019

Repurposing the aldose reductase inhibitor and diabetic neuropathy drug epalrestat for the congenital disorder of glycosylation PMM2-CDG.

Disease models &amp; mechanisms
2019

β-Glucose-1,6-Bisphosphate Stabilizes Pathological Phophomannomutase2 Mutants In Vitro and Represents a Lead Compound to Develop Pharmacological Chaperones for the Most Common Disorder of Glycosylation, PMM2-CDG.

International journal of molecular sciences
2020

Hypolipidaemia among patients with PMM2-CDG is associated with low circulating PCSK9 levels: a case report followed by observational and experimental studies.

Journal of medical genetics
2019

Multifactorial hypercoagulable state associated with a thrombotic phenotype in phosphomannomutase-2 congenital disorder of glycosylation (PMM2-CDG): Case report and brief review of the literature.

Thrombosis research
2019

AZATAX: Acetazolamide safety and efficacy in cerebellar syndrome in PMM2 congenital disorder of glycosylation (PMM2-CDG).

Annals of neurology
2019

Unusual Presentation of PMM2-Congenital Disorder of Glycosylation With Isolated Strokelike Episodes in a Young Girl.

Journal of child neurology
2019

International clinical guidelines for the management of phosphomannomutase 2-congenital disorders of glycosylation: Diagnosis, treatment and follow up.

Journal of inherited metabolic disease
2018

Congenital disorders of glycosylation.

Annals of translational medicine
2019

Clinical and molecular diagnosis of non-phosphomannomutase 2 N-linked congenital disorders of glycosylation in Spain.

Clinical genetics
2019

Yeast Models of Phosphomannomutase 2 Deficiency, a Congenital Disorder of Glycosylation.

G3 (Bethesda, Md.)
2019

From gestalt to gene: early predictive dysmorphic features of PMM2-CDG.

Journal of medical genetics
2019

The challenge of CDG diagnosis.

Molecular genetics and metabolism
2018

Ten years of screening for congenital disorders of glycosylation in Argentina: case studies and pitfalls.

Pediatric research
2018

Clinical Assessment of Dysarthria in Children with Cerebellar Syndrome Associated with PMM2-CDG.

Neuropediatrics
2019

Long-term follow-up in PMM2-CDG: are we ready to start treatment trials?

Genetics in medicine : official journal of the American College of Medical Genetics
2019

A family with floppy neonates with severe respiratory insufficiency: A lethal phenotype of RFT1-CDG due to a novel mutation.

European journal of medical genetics
2018

The Analysis of Variants in the General Population Reveals That PMM2 Is Extremely Tolerant to Missense Mutations and That Diagnosis of PMM2-CDG Can Benefit from the Identification of Modifiers.

International journal of molecular sciences
2019

An Electronic Questionnaire for Liver Assessment in Congenital Disorders of Glycosylation (LeQCDG): A Patient-Centered Study.

JIMD reports
2018

Recognizable phenotypes in CDG.

Journal of inherited metabolic disease
2018

Nrf2 activation attenuates genetic endoplasmic reticulum stress induced by a mutation in the phosphomannomutase 2 gene in zebrafish.

Proceedings of the National Academy of Sciences of the United States of America
2018

Stroke-Like Episodes and Cerebellar Syndrome in Phosphomannomutase Deficiency (PMM2-CDG): Evidence for Hypoglycosylation-Driven Channelopathy.

International journal of molecular sciences
2017

A mutant of phosphomannomutase1 retains full enzymatic activity, but is not activated by IMP: Possible implications for the disease PMM2-CDG.

PloS one
2018

Renal involvement in PMM2-CDG, a mini-review.

Molecular genetics and metabolism
2018

Congenital disorders of glycosylation (CDG): Quo vadis?

European journal of medical genetics
2017

Clinical, laboratory and molecular findings and long-term follow-up data in 96 French patients with PMM2-CDG (phosphomannomutase 2-congenital disorder of glycosylation) and review of the literature.

Journal of medical genetics
2017

A quantitative assessment of the evolution of cerebellar syndrome in children with phosphomannomutase-deficiency (PMM2-CDG).

Orphanet journal of rare diseases
2017

A novel PMCA3 mutation in an ataxic patient with hypomorphic phosphomannomutase 2 (PMM2) heterozygote mutations: Biochemical characterization of the pump defect.

Biochimica et biophysica acta. Molecular basis of disease
2017

PMM2-CDG and sensorineural hearing loss.

Journal of inherited metabolic disease
2017

Congenital disorders of glycosylation: The Saudi experience.

American journal of medical genetics. Part A
2018

The Prevalence of PMM2-CDG in Estonia Based on Population Carrier Frequencies and Diagnosed Patients.

JIMD reports
2018

Protein misfolding diseases: Prospects of pharmacological treatment.

Clinical genetics
2017

DPAGT1-CDG: Functional analysis of disease-causing pathogenic mutations and role of endoplasmic reticulum stress.

PloS one
2017

Three families with mild PMM2-CDG and normal cognitive development.

American journal of medical genetics. Part A
2017

Longitudinal volumetric and 2D assessment of cerebellar atrophy in a large cohort of children with phosphomannomutase deficiency (PMM2-CDG).

Journal of inherited metabolic disease
2017

A Population-Based Study on Congenital Disorders of Protein N- and Combined with O-Glycosylation Experience in Clinical and Genetic Diagnosis.

The Journal of pediatrics
2017

Phenotypic and genotypic spectrum of congenital disorders of glycosylation type I and type II.

Molecular genetics and metabolism
2017

Liver involvement in congenital disorders of glycosylation (CDG). A systematic review of the literature.

Journal of inherited metabolic disease
2017

Anesthetic management of a child with phosphomannomutase-2 congenital disorder of glycosylation (PMM2-CDG).

JA clinical reports
2016

A mouse model of a human congenital disorder of glycosylation caused by loss of PMM2.

Human molecular genetics
2017

Pharmacological Chaperoning: A Potential Treatment for PMM2-CDG.

Human mutation
2016

Natural Killer Cell Receptors and Cytotoxic Activity in Phosphomannomutase 2 Deficiency (PMM2-CDG).

PloS one
2016

A case of fatal Type I congenital disorders of glycosylation (CDG I) associated with low dehydrodolichol diphosphate synthase (DHDDS) activity.

Orphanet journal of rare diseases
2016

Global serum glycoform profiling for the investigation of dystroglycanopathies & Congenital Disorders of Glycosylation.

Molecular genetics and metabolism reports
2016

Synaptic roles for phosphomannomutase type 2 in a new Drosophila congenital disorder of glycosylation disease model.

Disease models &amp; mechanisms
2015

[Clinical and genetic analysis for two children with congenital disturbance of glycosylation with PMM2 gene mutations].

Zhonghua er ke za zhi = Chinese journal of pediatrics
2016

Mitotic Intragenic Recombination: A Mechanism of Survival for Several Congenital Disorders of Glycosylation.

American journal of human genetics
2016

Glycomic Characterization of Induced Pluripotent Stem Cells Derived from a Patient Suffering from Phosphomannomutase 2 Congenital Disorder of Glycosylation (PMM2-CDG).

Molecular &amp; cellular proteomics : MCP
2015

Phosphomannomutase deficiency (PMM2-CDG): ataxia and cerebellar assessment.

Orphanet journal of rare diseases
2015

Heterodimerization of Two Pathological Mutants Enhances the Activity of Human Phosphomannomutase2.

PloS one
2016

Electroclinical Features of Early-Onset Epileptic Encephalopathies in Congenital Disorders of Glycosylation (CDGs).

JIMD reports
2016

A Novel N-Tetrasaccharide in Patients with Congenital Disorders of Glycosylation, Including Asparagine-Linked Glycosylation Protein 1, Phosphomannomutase 2, and Mannose Phosphate Isomerase Deficiencies.

Clinical chemistry
2016

Serum transferrin carrying the xeno-tetrasaccharide NeuAc-Gal-GlcNAc2 is a biomarker of ALG1-CDG.

Journal of inherited metabolic disease
2015

Lack of phosphomannomutase 2 affects Xenopus laevis morphogenesis and the non-canonical Wnt5a/Ror2 signalling.

Journal of inherited metabolic disease
2015

The Effects of PMM2-CDG-Causing Mutations on the Folding, Activity, and Stability of the PMM2 Protein.

Human mutation
2015

Application of whole exome sequencing to a rare inherited metabolic disease with neurological and gastrointestinal manifestations: a congenital disorder of glycosylation mimicking glycogen storage disease.

Clinica chimica acta; international journal of clinical chemistry

Associações

Organizações que acompanham esta doença — pra ter apoio e orientação

Ainda não temos associações cadastradas para PMM2-CDG.

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 PMM2-CDG

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 login

Doenças 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.

  1. Exploring Secondary Biotinidase Deficiency and Biotin Supplementation in PMM2-CDG.
    Neuropediatrics· 2026· PMID 41052538mais citado
  2. Unilateral Multicystic Dysplastic Kidney in a Fetus Associated With Parental Genetic and Environmental Risk Factors: A Case Report.
    Cureus· 2026· PMID 41769605mais citado
  3. A founder variant in Tunisian PMM2-CDG patients: An integrated clinical, radiological, biochemical, and genetic study.
    Molecular genetics and metabolism· 2026· PMID 41722273mais citado
  4. Albumin as a glycoprotein biomarker in congenital disorders of glycosylation.
    Molecular genetics and metabolism· 2026· PMID 41713138mais citado
  5. PMM2-CDG and the Role of Liver Transplantation as a Long-Term Solution: A Case Report.
    Pediatric transplantation· 2026· PMID 41540812mais citado
  6. Lipo-Glc-1,6-P(2): A Bioprecursor Prodrug for Phosphomannomutase-2 Congenital Disorder of Glycosylation.
    IUBMB Life· 2026· PMID 41968365recente
  7. Biochemical genetic testing for congenital disorders of glycosylation after sequencing produces equivocal results.
    Mol Genet Metab· 2026· PMID 41905312recente

Bases de dados e fontes oficiais

Identificadores e referências canônicas usadas para montar este verbete.

  1. ORPHA:79318(Orphanet)
  2. OMIM OMIM:212065(OMIM)
  3. MONDO:0008907(MONDO)
  4. GARD:9826(GARD (NIH))
  5. Variantes catalogadas(ClinVar)
  6. Busca completa no PubMed(PubMed)
  7. Q3508654(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

PMM2-CDG
Compêndio · Raras BR

PMM2-CDG

ORPHA:79318 · MONDO:0008907
Prevalência
Unknown
Herança
Autosomal recessive
CID-10
E77.8 · Outros distúrbios do metabolismo de glicoproteínas
CID-11
Ensaios
2 ativos
Medicamentos
2 registrados
Início
Infancy, Neonatal
Prevalência
0.0 (Worldwide)
MedGen
UMLS
C0349653
EuropePMC
Wikidata
Papers 10a
Evidência
🥉 Relato de caso
DiscussaoAtiva

Nenhuma novidade ainda. O agente esta monitorando.

0membros
0novidades