Bohring-Opitz syndrome is a severe de novo ASXL1-related developmental disorder characterized by severe intellectual disability, growth failure, distinctive facial features, feeding difficulty, hypertrichosis, and congenital anomalies. The disorder is best understood as a chromatin- regulatory syndrome with downstream effects on developmental gene expression, Wnt signaling, and tumor surveillance.
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Conditions with similar clinical presentations that must be differentiated from Bohring-Opitz syndrome:
name: Bohring-Opitz syndrome
creation_date: "2026-04-16T18:28:41Z"
updated_date: "2026-04-16T22:40:00Z"
category: Mendelian
description: >-
Bohring-Opitz syndrome is a severe de novo ASXL1-related developmental
disorder characterized by severe intellectual disability, growth failure,
distinctive facial features, feeding difficulty, hypertrichosis, and
congenital anomalies. The disorder is best understood as a chromatin-
regulatory syndrome with downstream effects on developmental gene
expression, Wnt signaling, and tumor surveillance.
disease_term:
preferred_term: Bohring-Opitz syndrome
term:
id: MONDO:0011510
label: Bohring-Opitz syndrome
parents:
- hereditary disease
inheritance:
- name: Autosomal dominant inheritance
description: >-
Bohring-Opitz syndrome is typically caused by a de novo constitutional
heterozygous pathogenic variant in ASXL1.
inheritance_term:
preferred_term: Autosomal dominant inheritance
term:
id: HP:0000006
label: Autosomal dominant inheritance
evidence:
- reference: PMID:29446906
reference_title: Bohring-Opitz Syndrome.
supports: SUPPORT
evidence_source: OTHER
snippet: >-
GENETIC COUNSELING: Bohring-Opitz syndrome (BOS) is typically the result
of a de novo pathogenic variant in ASXL1.
explanation: This directly supports the usual de novo autosomal-dominant inheritance pattern for BOS.
pathophysiology:
- name: ASXL1 truncation disrupts epigenetic regulation of developmental gene expression
description: >-
Truncating ASXL1 variants disrupt maintenance of developmental gene
expression programs, including Hox gene regulation, and alter chromatin-
associated transcriptional control across tissues.
genes:
- preferred_term: ASXL1
modifier: DECREASED
term:
id: hgnc:18318
label: ASXL1
biological_processes:
- preferred_term: epigenetic regulation of gene expression
modifier: ABNORMAL
term:
id: GO:0040029
label: epigenetic regulation of gene expression
- preferred_term: chromatin remodeling
modifier: ABNORMAL
term:
id: GO:0006338
label: chromatin remodeling
- preferred_term: regulation of transcription by RNA polymerase II
modifier: ABNORMAL
term:
id: GO:0006357
label: regulation of transcription by RNA polymerase II
downstream:
- target: Severe intellectual disability
description: Disrupted developmental gene expression contributes to profound neurodevelopmental impairment.
evidence:
- reference: PMID:21706002
reference_title: De novo nonsense mutations in ASXL1 cause Bohring-Opitz syndrome.
supports: SUPPORT
evidence_source: HUMAN_CLINICAL
snippet: >-
Bohring-Opitz syndrome is characterized by severe intellectual
disability, distinctive facial features and multiple congenital
malformations.
explanation: This supports severe intellectual disability as a core BOS manifestation downstream of ASXL1 disruption.
- target: Global developmental delay
description: Disrupted developmental gene expression contributes to broad developmental delay across motor, language, and adaptive domains.
evidence:
- reference: PMID:25921057
reference_title: Clinical management of patients with ASXL1 mutations and Bohring-Opitz syndrome, emphasizing the need for Wilms tumor surveillance.
supports: SUPPORT
evidence_source: HUMAN_CLINICAL
snippet: >-
Bohring-Opitz syndrome has previously been associated with high infant
mortality (11 out of 43 reported patients (26%), intrauterine growth
retardation, feeding difficulties often requiring a feeding tube,
failure to thrive, severe to profound developmental delays, recurrent
infections, nonspecific brain abnormalities, variable microcephaly,
distinctive facial features
explanation: This supports global developmental delay as a common BOS phenotype linked to the underlying ASXL1-driven disorder.
- target: Failure to thrive
description: Growth failure follows the developmental and feeding phenotype of BOS.
evidence:
- reference: PMID:29446906
reference_title: Bohring-Opitz Syndrome.
supports: SUPPORT
evidence_source: OTHER
snippet: >-
Feeding difficulties in early childhood, including cyclic vomiting, have
a significant impact on overall health; feeding tends to improve with
age.
explanation: This supports the feeding-related growth failure that contributes to failure to thrive in BOS.
- target: Feeding difficulties
description: Disrupted development and hypotonia contribute to feeding intolerance and poor oral intake.
evidence:
- reference: PMID:25921057
reference_title: Clinical management of patients with ASXL1 mutations and Bohring-Opitz syndrome, emphasizing the need for Wilms tumor surveillance.
supports: SUPPORT
evidence_source: HUMAN_CLINICAL
snippet: >-
Bohring-Opitz syndrome is a rare genetic condition characterized by
distinctive facial features, variable microcephaly, hypertrichosis,
nevus flammeus, severe myopia, unusual posture (flexion at the elbows
with ulnar deviation, and flexion of the wrists and metacarpophalangeal
joints), severe intellectual disability, and feeding issues.
explanation: This directly supports feeding difficulties as a core BOS phenotype.
evidence:
- reference: PMID:21706002
reference_title: De novo nonsense mutations in ASXL1 cause Bohring-Opitz syndrome.
supports: SUPPORT
evidence_source: HUMAN_CLINICAL
snippet: >-
We sequenced the exomes of three individuals with Bohring-Opitz syndrome
and in each identified heterozygous de novo nonsense mutations in ASXL1,
which is required for maintenance of both activation and silencing of Hox
genes.
explanation: This is the core molecular evidence linking BOS to de novo ASXL1 loss-of-function and disrupted developmental gene regulation.
- reference: PMID:37053013
reference_title: Multiomics of Bohring-Opitz syndrome truncating ASXL1 mutations identify canonical and noncanonical Wnt signaling dysregulation.
supports: SUPPORT
evidence_source: IN_VITRO
snippet: >-
ASXL1 (additional sex combs-like 1) plays key roles in epigenetic
regulation of early developmental gene expression.
explanation: This supports the broader epigenetic mechanism of BOS in patient-derived cell models.
- name: ASXL1 truncation dysregulates Wnt signaling and tissue patterning
description: >-
Multiomics studies in patient-derived cells show canonical and noncanonical
Wnt pathway perturbation, including broad activation of canonical Wnt
signaling and increased VANGL2 expression, consistent with disturbed tissue
patterning during embryogenesis.
genes:
- preferred_term: ASXL1
modifier: DECREASED
term:
id: hgnc:18318
label: ASXL1
biological_processes:
- preferred_term: Wnt signaling pathway
modifier: ABNORMAL
term:
id: GO:0016055
label: Wnt signaling pathway
- preferred_term: canonical Wnt signaling pathway
modifier: ABNORMAL
term:
id: GO:0060070
label: canonical Wnt signaling pathway
- preferred_term: Wnt signaling pathway, planar cell polarity pathway
modifier: ABNORMAL
term:
id: GO:0060071
label: Wnt signaling pathway, planar cell polarity pathway
downstream:
- target: Trigonocephaly
description: Disturbed craniofacial patterning contributes to abnormal skull shape and metopic ridge prominence.
evidence:
- reference: PMID:29446906
reference_title: Bohring-Opitz Syndrome.
supports: SUPPORT
evidence_source: OTHER
snippet: >-
The facial features may include microcephaly or trigonocephaly /
prominent (but not fused) metopic ridge, hypotonic facies with full
cheeks, synophrys, glabellar and eyelid nevus flammeus (simplex),
prominent globes, widely set eyes, palate anomalies, and micrognathia.
explanation: This supports trigonocephaly as a characteristic BOS craniofacial manifestation that fits downstream developmental patterning defects.
- target: Micrognathia
description: Disturbed craniofacial development contributes to the characteristic small jaw phenotype.
evidence:
- reference: PMID:25921057
reference_title: Clinical management of patients with ASXL1 mutations and Bohring-Opitz syndrome, emphasizing the need for Wilms tumor surveillance.
supports: SUPPORT
evidence_source: HUMAN_CLINICAL
snippet: >-
The differential is broad for these patients with hypertrichosis and
IUGR resembling Cornelia de Lange syndrome, coarse facial features
resembling a storage disease or RASopathy, and micrognathia resembling
Treacher Collins syndrome.
explanation: This supports micrognathia as a major BOS facial feature and frames it within the syndrome's craniofacial patterning phenotype.
evidence:
- reference: PMID:37053013
reference_title: Multiomics of Bohring-Opitz syndrome truncating ASXL1 mutations identify canonical and noncanonical Wnt signaling dysregulation.
supports: SUPPORT
evidence_source: IN_VITRO
snippet: >-
The data showed a broad activation of canonical Wnt signaling at the
transcriptional and protein levels and upregulation of VANGL2, which
encodes a planar cell polarity pathway protein that acts through
noncanonical Wnt signaling to direct tissue patterning and cell
migration.
explanation: This directly supports Wnt pathway dysregulation and altered tissue-patterning mechanisms in BOS patient-derived cells.
phenotypes:
- name: Severe intellectual disability
category: Neurologic
diagnostic: true
description: >-
Severe intellectual disability is a defining BOS neurodevelopmental
manifestation.
phenotype_term:
preferred_term: Severe intellectual disability
term:
id: HP:0010864
label: Severe intellectual disability
evidence:
- reference: PMID:21706002
reference_title: De novo nonsense mutations in ASXL1 cause Bohring-Opitz syndrome.
supports: SUPPORT
evidence_source: HUMAN_CLINICAL
snippet: >-
Bohring-Opitz syndrome is characterized by severe intellectual
disability, distinctive facial features and multiple congenital
malformations.
explanation: This explicitly supports severe intellectual disability as a core BOS feature.
- name: Global developmental delay
category: Neurologic
diagnostic: true
description: >-
Global developmental delay is common in BOS and reflects pervasive
neurodevelopmental impairment.
phenotype_term:
preferred_term: Global developmental delay
term:
id: HP:0001263
label: Global developmental delay
evidence:
- reference: PMID:25921057
reference_title: Clinical management of patients with ASXL1 mutations and Bohring-Opitz syndrome, emphasizing the need for Wilms tumor surveillance.
supports: SUPPORT
evidence_source: HUMAN_CLINICAL
snippet: >-
Bohring-Opitz syndrome has previously been associated with high infant
mortality (11 out of 43 reported patients (26%), intrauterine growth
retardation, feeding difficulties often requiring a feeding tube,
failure to thrive, severe to profound developmental delays, recurrent
infections, nonspecific brain abnormalities, variable microcephaly,
distinctive facial features
explanation: This supports broad developmental delay as a common BOS manifestation.
- name: Failure to thrive
category: Growth
diagnostic: true
description: >-
Poor postnatal weight gain and failure to thrive are common in BOS and are
strongly influenced by feeding difficulty.
phenotype_term:
preferred_term: Failure to thrive
term:
id: HP:0001508
label: Failure to thrive
evidence:
- reference: PMID:29446906
reference_title: Bohring-Opitz Syndrome.
supports: SUPPORT
evidence_source: OTHER
snippet: >-
Feeding difficulties in early childhood, including cyclic vomiting, have
a significant impact on overall health; feeding tends to improve with
age.
explanation: This supports the feeding-related mechanism that drives failure to thrive in BOS.
- name: Feeding difficulties
category: Gastrointestinal
diagnostic: true
description: >-
Feeding intolerance, often with cyclic vomiting or aspiration, is a major
early-life BOS complication.
phenotype_term:
preferred_term: Feeding difficulties
term:
id: HP:0011968
label: Feeding difficulties
evidence:
- reference: PMID:29446906
reference_title: Bohring-Opitz Syndrome.
supports: SUPPORT
evidence_source: OTHER
snippet: >-
Feeding difficulties in early childhood, including cyclic vomiting, have
a significant impact on overall health; feeding tends to improve with
age.
explanation: This directly supports feeding difficulties as a major BOS feature.
- name: Hypertrichosis
category: Dermatologic
diagnostic: true
description: >-
Hypertrichosis is a recurrent dysmorphic feature in BOS.
phenotype_term:
preferred_term: Hypertrichosis
term:
id: HP:0000998
label: Hypertrichosis
evidence:
- reference: PMID:25921057
reference_title: Clinical management of patients with ASXL1 mutations and Bohring-Opitz syndrome, emphasizing the need for Wilms tumor surveillance.
supports: SUPPORT
evidence_source: HUMAN_CLINICAL
snippet: >-
Bohring-Opitz syndrome is a rare genetic condition characterized by
distinctive facial features, variable microcephaly, hypertrichosis,
nevus flammeus, severe myopia, unusual posture (flexion at the elbows
with ulnar deviation, and flexion of the wrists and metacarpophalangeal
joints), severe intellectual disability, and feeding issues.
explanation: This directly supports hypertrichosis as a BOS phenotype.
- name: Micrognathia
category: Craniofacial
diagnostic: true
description: >-
Micrognathia is part of the characteristic BOS craniofacial gestalt.
phenotype_term:
preferred_term: Micrognathia
term:
id: HP:0000347
label: Micrognathia
evidence:
- reference: PMID:29446906
reference_title: Bohring-Opitz Syndrome.
supports: SUPPORT
evidence_source: OTHER
snippet: >-
The facial features may include microcephaly or trigonocephaly /
prominent (but not fused) metopic ridge, hypotonic facies with full
cheeks, synophrys, glabellar and eyelid nevus flammeus (simplex),
prominent globes, widely set eyes, palate anomalies, and micrognathia.
explanation: This directly supports micrognathia as part of the BOS facial phenotype.
- name: Trigonocephaly
category: Craniofacial
diagnostic: true
description: >-
Trigonocephaly or a prominent metopic ridge is a recurring cranial shape
abnormality in BOS.
phenotype_term:
preferred_term: Trigonocephaly
term:
id: HP:0000243
label: Trigonocephaly
evidence:
- reference: PMID:29446906
reference_title: Bohring-Opitz Syndrome.
supports: SUPPORT
evidence_source: OTHER
snippet: >-
The facial features may include microcephaly or trigonocephaly /
prominent (but not fused) metopic ridge, hypotonic facies with full
cheeks, synophrys, glabellar and eyelid nevus flammeus (simplex),
prominent globes, widely set eyes, palate anomalies, and micrognathia.
explanation: This directly supports trigonocephaly as a BOS craniofacial feature.
- name: Nevus flammeus
category: Dermatologic
diagnostic: true
description: >-
Glabellar and eyelid nevus flammeus is part of the characteristic BOS
facial gestalt.
phenotype_term:
preferred_term: Port-wine stain
term:
id: HP:0001052
label: Nevus flammeus
evidence:
- reference: PMID:29446906
reference_title: Bohring-Opitz Syndrome.
supports: SUPPORT
evidence_source: OTHER
snippet: >-
The facial features may include microcephaly or trigonocephaly /
prominent (but not fused) metopic ridge, hypotonic facies with full
cheeks, synophrys, glabellar and eyelid nevus flammeus (simplex),
prominent globes, widely set eyes, palate anomalies, and micrognathia.
explanation: This directly supports nevus flammeus as a BOS craniofacial feature.
- name: Characteristic BOS posture
category: Musculoskeletal
diagnostic: true
description: >-
The typical flexed elbow, wrist, and metacarpophalangeal posture is a
defining BOS clinical sign.
phenotype_term:
preferred_term: Characteristic BOS posture
term:
id: HP:0001376
label: Limitation of joint mobility
evidence:
- reference: PMID:25921057
reference_title: Clinical management of patients with ASXL1 mutations and Bohring-Opitz syndrome, emphasizing the need for Wilms tumor surveillance.
supports: SUPPORT
evidence_source: HUMAN_CLINICAL
snippet: >-
Bohring-Opitz syndrome is a rare genetic condition characterized by
distinctive facial features, variable microcephaly, hypertrichosis,
nevus flammeus, severe myopia, unusual posture (flexion at the elbows
with ulnar deviation, and flexion of the wrists and metacarpophalangeal
joints), severe intellectual disability, and feeding issues.
explanation: This directly supports the characteristic BOS posture phenotype.
- name: Nephroblastoma (Wilms tumor)
category: Oncologic
diagnostic: false
description: >-
Individuals with BOS appear to have an elevated risk of Wilms tumor,
motivating surveillance in childhood.
phenotype_term:
preferred_term: Nephroblastoma
term:
id: HP:0002667
label: Nephroblastoma
evidence:
- reference: PMID:25921057
reference_title: Clinical management of patients with ASXL1 mutations and Bohring-Opitz syndrome, emphasizing the need for Wilms tumor surveillance.
supports: SUPPORT
evidence_source: HUMAN_CLINICAL
snippet: >-
Including the patients discussed herein, there are 43 published patients
with BOS of which two had Wilms tumor and one had bilateral
nephroblastomatosis in infancy, making the incidence of a renal
neoplastic process 7% among published patients, although this may be
inflated due to biased ascertainment.
explanation: This provides human clinical evidence for elevated Wilms tumor risk in BOS.
differential_diagnoses:
- name: Cornelia de Lange syndrome
description: >-
Cornelia de Lange syndrome overlaps with BOS through growth restriction and
hypertrichosis, but the shared presentation should be resolved by BOS-
typical ASXL1 testing and the broader BOS facial/postural pattern.
disease_term:
preferred_term: Cornelia de Lange syndrome
term:
id: MONDO:0016033
label: Cornelia de Lange syndrome
distinguishing_features:
- BOS typically shows ASXL1 truncating variants rather than cohesin-pathway defects.
- BOS posture and the characteristic facial gestalt help separate BOS from CdLS.
evidence:
- reference: PMID:25921057
reference_title: Clinical management of patients with ASXL1 mutations and Bohring-Opitz syndrome, emphasizing the need for Wilms tumor surveillance.
supports: SUPPORT
evidence_source: HUMAN_CLINICAL
snippet: >-
The differential is broad for these patients with hypertrichosis and
IUGR resembling Cornelia de Lange syndrome, coarse facial features
resembling a storage disease or RASopathy, and micrognathia resembling
Treacher Collins syndrome.
explanation: This explicitly names Cornelia de Lange syndrome as a BOS mimic.
- name: Treacher Collins syndrome
description: >-
Treacher Collins syndrome is a craniofacial differential because BOS can
present with micrognathia and facial dysmorphism, but BOS has more global
neurodevelopmental involvement and hypertrichosis.
disease_term:
preferred_term: Treacher Collins syndrome
term:
id: MONDO:0007944
label: Treacher Collins syndrome 1
distinguishing_features:
- BOS usually has profound developmental delay and hypertrichosis, which are not defining features of Treacher Collins syndrome.
- BOS facial pattern is broader than isolated mandibulofacial dysostosis.
evidence:
- reference: PMID:25921057
reference_title: Clinical management of patients with ASXL1 mutations and Bohring-Opitz syndrome, emphasizing the need for Wilms tumor surveillance.
supports: SUPPORT
evidence_source: HUMAN_CLINICAL
snippet: >-
The differential is broad for these patients with hypertrichosis and
IUGR resembling Cornelia de Lange syndrome, coarse facial features
resembling a storage disease or RASopathy, and micrognathia resembling
Treacher Collins syndrome.
explanation: This explicitly names Treacher Collins syndrome as a BOS mimic.
- name: RASopathy
description: >-
RASopathy is a useful broad differential for BOS because coarse facial
features may resemble a RAS/MAPK syndrome, but BOS is driven by ASXL1
truncation and has the BOS posture and neurodevelopmental profile.
disease_term:
preferred_term: RASopathy
term:
id: MONDO:0021060
label: RASopathy
distinguishing_features:
- BOS has ASXL1-related chromatin dysregulation rather than RAS/MAPK pathway activation.
- BOS usually has marked feeding issues, hypertrichosis, and a characteristic posture.
evidence:
- reference: PMID:25921057
reference_title: Clinical management of patients with ASXL1 mutations and Bohring-Opitz syndrome, emphasizing the need for Wilms tumor surveillance.
supports: SUPPORT
evidence_source: HUMAN_CLINICAL
snippet: >-
The differential is broad for these patients with hypertrichosis and
IUGR resembling Cornelia de Lange syndrome, coarse facial features
resembling a storage disease or RASopathy, and micrognathia resembling
Treacher Collins syndrome.
explanation: This explicitly names RASopathy as a BOS mimic.
- name: Lysosomal storage disease
description: >-
Lysosomal storage disease can resemble BOS when coarse facial features are
prominent, but BOS lacks the enzyme-deficiency and biochemical storage
signature of a true lysosomal disorder.
disease_term:
preferred_term: lysosomal storage disease
term:
id: MONDO:0002561
label: lysosomal storage disease
distinguishing_features:
- BOS is molecularly confirmed by ASXL1 testing rather than by lysosomal enzyme analysis.
- BOS typically shows early developmental delay and hypertrichosis rather than a storage biochemistry profile.
evidence:
- reference: PMID:25921057
reference_title: Clinical management of patients with ASXL1 mutations and Bohring-Opitz syndrome, emphasizing the need for Wilms tumor surveillance.
supports: SUPPORT
evidence_source: HUMAN_CLINICAL
snippet: >-
The differential is broad for these patients with hypertrichosis and
IUGR resembling Cornelia de Lange syndrome, coarse facial features
resembling a storage disease or RASopathy, and micrognathia resembling
Treacher Collins syndrome.
explanation: This explicitly names storage disease as a BOS mimic.
genetic:
- name: ASXL1
gene_term:
preferred_term: ASXL1
term:
id: hgnc:18318
label: ASXL1
association: Pathogenic Variants
evidence:
- reference: CGGV:assertion_31e0ce4d-aeb7-4983-9ec2-85178d7f40f0-2021-07-30T160000.000Z
reference_title: "ASXL1 / Bohring-Opitz syndrome (Definitive)"
supports: SUPPORT
evidence_source: OTHER
snippet: "ASXL1 | HGNC:18318 | Bohring-Opitz syndrome | MONDO:0011510 | AD | Definitive"
explanation: ClinGen classifies the ASXL1-Bohring-Opitz syndrome gene-disease relationship as definitive with autosomal dominant inheritance.
diagnosis:
- name: ASXL1 molecular genetic testing
description: >-
Molecular testing for a constitutional heterozygous pathogenic ASXL1
variant confirms the diagnosis in a proband with suggestive clinical
features.
presence: Identification of a constitutional heterozygous pathogenic ASXL1 variant establishes the diagnosis.
diagnosis_term:
preferred_term: molecular genetic testing
term:
id: MAXO:0000533
label: molecular genetic testing
qualifiers:
- predicate:
preferred_term: has participant
term:
id: RO:0000057
label: has participant
value:
preferred_term: ASXL1
term:
id: hgnc:18318
label: ASXL1
evidence:
- reference: PMID:29446906
reference_title: Bohring-Opitz Syndrome.
supports: SUPPORT
evidence_source: OTHER
snippet: >-
DIAGNOSIS/TESTING: The diagnosis of Bohring-Opitz syndrome (BOS) is
established in a proband with suggestive clinical features and/or the
identification of a constitutional heterozygous pathogenic variant in
ASXL1 by molecular genetic testing.
explanation: This directly supports ASXL1 molecular testing as the confirmatory diagnostic approach.
datasets:
- accession: geo:GSE230696
title: Multiomics of Bohring-Opitz syndrome truncating ASXL1 mutations
description: >-
Human primary-cell multi-omics dataset from Bohring-Opitz syndrome patients
and controls, including peripheral blood and skin fibroblast assays used to
study epigenomic dysregulation and Wnt signaling.
organism:
preferred_term: human
term:
id: NCBITaxon:9606
label: Homo sapiens
data_type: MULTI_OMICS_PERTURBATION
sample_types:
- preferred_term: peripheral blood
tissue_term:
preferred_term: blood
term:
id: UBERON:0000178
label: blood
- preferred_term: skin fibroblast
cell_type_term:
preferred_term: skin fibroblast
term:
id: CL:0002620
label: skin fibroblast
sample_count: 67
conditions:
- Bohring-Opitz syndrome
- control
publication: PMID:37053013
findings:
- statement: Patient-derived primary cells from BOS and controls reveal cross-tissue epigenomic disruption and Wnt signaling dysregulation.
evidence:
- reference: PMID:37053013
reference_title: Multiomics of Bohring-Opitz syndrome truncating ASXL1 mutations identify canonical and noncanonical Wnt signaling dysregulation.
supports: SUPPORT
evidence_source: IN_VITRO
snippet: >-
We used primary cells from individuals with BOS (n = 18) and controls
(n = 49) to dissect gene regulatory changes caused by ASXL1 mutations
using comprehensive multiomics assays for chromatin accessibility
(ATAC-seq), DNA methylation, histone methylation binding, and
transcriptome in peripheral blood and skin fibroblasts.
explanation: This supports the dataset as a human primary-cell BOS resource for mechanistic epigenomic analysis.
- reference: PMID:37053013
reference_title: Multiomics of Bohring-Opitz syndrome truncating ASXL1 mutations identify canonical and noncanonical Wnt signaling dysregulation.
supports: SUPPORT
evidence_source: IN_VITRO
snippet: >-
Our data show that regardless of cell type, ASXL1 mutations drive
strong cross-tissue effects that disrupt multiple layers of the
epigenome.
explanation: This supports the dataset as a primary-cell BOS resource for multi-omics epigenomic analysis.
clinical_trials: []
treatments:
- name: Enteral feeding support
description: >-
Gastrostomy or gastrojejunal tube feeding is commonly used when oral intake
is inadequate because of severe feeding difficulty and cyclic emesis.
treatment_term:
preferred_term: supportive care
term:
id: MAXO:0000950
label: supportive care
evidence:
- reference: PMID:25921057
reference_title: Clinical management of patients with ASXL1 mutations and Bohring-Opitz syndrome, emphasizing the need for Wilms tumor surveillance.
supports: SUPPORT
evidence_source: HUMAN_CLINICAL
snippet: >-
All eight patients struggled with adequate caloric intake by mouth, and
Patients 2 and 5 had significant episodes of cyclic emesis.
explanation: This supports feeding support as a central management need in BOS.
- reference: PMID:25921057
reference_title: Clinical management of patients with ASXL1 mutations and Bohring-Opitz syndrome, emphasizing the need for Wilms tumor surveillance.
supports: SUPPORT
evidence_source: HUMAN_CLINICAL
snippet: >-
Patients 2–6 required gastrostomy tubes due to aspiration and/or an
inability to take adequate calories orally.
explanation: This directly supports gastrostomy-based enteral feeding support in BOS.
references:
- reference: PMID:29446906
title: "Bohring-Opitz Syndrome."
tags:
- GeneReviews
findings: []
This report is retrieval-only and is generated directly from Asta results.
search_papers_by_relevance with snippet_search.