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An autosomal dominant inherited condition caused by mutations in the lamin B receptor gene. It is characterized by defects in the neutrophil lobulation, resulting in the presence of dumbbell-shaped neutrophils with bilobed nuclei in the peripheral blood smear.
Features include always present findings: Bilateral tonic-clonic seizure, Abnormality of the dentition, Strabismus, and Failure to thrive and others; and very common findings: Abnormality of chromosome segregation. 35 total HPO annotations.
Organ System | Phenotype Count | Example Features |
|---|---|---|
Brain and nerves | 6 | Bilateral tonic-clonic seizure, Seizure, Intellectual disability |
LBR encodes lamin B receptor (615 aa). Catalyzes the reduction of the C14-unsaturated bond of lanosterol, as part of the metabolic pathway leading to cholesterol biosynthesis. Highest expression in Colon Sigmoid (89.3 TPM) and Cells EBV-transformed lymphocytes (88.9 TPM).
Pelger-Huet anomaly is associated with mutations in the LBR gene on chromosome 1.
The LBR protein participates in 4,4-dimethylcholesta-8(9),14,24-trien-3beta-ol is reduced to 4,4-dimethylcholesta-8(9),24-dien-3beta-ol [LBR], 4,4-dimethylcholesta-8(9),14,24-trien-3beta-ol is reduced to 4,4-dimethylcholesta-8(9),24-dien-3beta-ol [TM7SF2], and RHOC activates endoplasmic reticulum effectors pathways.
LBR is classified as a druggable target with score 0.0.
Genetic testing for LBR is available. Testing is considered confirmatory for diagnosis.
Biomarker and diagnostic research for Pelger-Huet anomaly has been reported in the published literature.
Phenotype severity distribution: 16 always present features, 1 very common feature, 1 common feature.
No clinical trials have been registered for Pelger-Huet anomaly.
17 publications have been identified in PubMed for Pelger-Huet anomaly. Research spans Case Report / Case Series (59%), Basic Science / Preclinical (18%), and Epidemiology / Natural History (12%).
Research Type | Count | % of Total |
|---|---|---|
Patient case studies | 10 | 59% |
Data assembled from 5 of 12 sources · Last updated Sep 21, 2026, 4:51 AM UTC
Online Mendelian Inheritance in Man
Genetic and Rare Diseases Info Center
Common questions about Pelger-Huet anomaly
Blood and immune system |
5 |
Giant platelets, Hyposegmentation of neutrophil nuclei, Abnormality of neutrophils |
Arms and legs | 4 | Foot dorsiflexor weakness, Lower limb hypertonia, Upper limb undergrowth |
Growth and development | 2 | Failure to thrive, Mild short stature |
Head and neck | 2 | Macrocephaly, Median cleft palate |
Eyes | 1 | Strabismus |
Heart and blood vessels | 1 | Ventricular septal defect |
Muscles | 1 | Foot dorsiflexor weakness |
Bones and joints | 1 | Excessive outward curvature of the upper spine (kyphosis) |
Ears | 1 | Recurrent otitis media |
Skin | 1 | Eczematoid dermatitis |
3 |
18% |
Disease patterns and progression | 2 | 12% |
Testing and diagnosis research | 1 | 6% |
Research summaries | 1 | 6% |
Robier C (2026). [PMID: 42103972](https://pubmed.ncbi.nlm.nih.gov/42103972/). *J Hematop*. [Case Report / Case Series]
Jung EH (2026). [PMID: 41339337](https://pubmed.ncbi.nlm.nih.gov/41339337/). *Ophthalmic Genet*. [Review / Meta-Analysis]
Dirimtekin E (2025). [PMID: 41059452](https://pubmed.ncbi.nlm.nih.gov/41059452/). *Mol Syndromol*. [Case Report / Case Series]
Peters B (2025). [PMID: 40433928](https://pubmed.ncbi.nlm.nih.gov/40433928/). *Liver Int*. [Epidemiology / Natural History]
Goans RE (2025). [PMID: 39222006](https://pubmed.ncbi.nlm.nih.gov/39222006/). *Health Phys*. [Basic Science / Preclinical]
Silverstein S (2025). [PMID: 40215727](https://pubmed.ncbi.nlm.nih.gov/40215727/). *Mol Genet Metab*. [Case Report / Case Series]
Carli E (2025). [PMID: 40567546](https://pubmed.ncbi.nlm.nih.gov/40567546/). *Front Vet Sci*. [Epidemiology / Natural History]
Chen Y (2025). [PMID: 40355051](https://pubmed.ncbi.nlm.nih.gov/40355051/). *Biochim Biophys Acta Mol Basis Dis*. [Basic Science / Preclinical]
Xu S (2025). [PMID: 40020188](https://pubmed.ncbi.nlm.nih.gov/40020188/). *Proc Natl Acad Sci U S A*. [Basic Science / Preclinical]
Mullick A (2025). [PMID: 40448895](https://pubmed.ncbi.nlm.nih.gov/40448895/). *Indian J Pediatr*. [Diagnostic / Biomarker]