Naxos syndrome

Medical condition

Medical condition

Naxos disease

Other names| Diffuse non-epidermolytic palmoplantar keratoderma with woolly hair and cardiomyopathy
Cutaneous phenotype of Naxos disease: woolly hair (A), palmar (B) and plantar (C) keratoses.

Naxos disease[1] (also known as "diffuse non-epidermolytic palmoplantar keratoderma with woolly hair and cardiomyopathy"[1] or "diffuse palmoplantar keratoderma with woolly hair and arrhythmogenic right ventricular cardiomyopathy", first described on the island of Naxos by Dr. Nikos Protonotarios[1]) is a cutaneous condition characterized by a palmoplantar keratoderma.[1] The prevalence of the syndrome is up to 1 in every 1000 people in the Greek islands.[2]

It has been associated with mutations in the genes encoding the proteins desmoplakin, plakoglobin, desmocollin-2, and SRC-interacting protein (SIP).[3][4] Naxos disease has the same cutaneous phenotype as the Carvajal syndrome.[2]

## Symptoms[edit]

Between 80 and 99% of those with Naxos disease will display some of the following symptoms:

* Disease of the heart muscle
* Thickening of palms and soles
* Sudden increased heart rate
* Dizzy spells[5]
* Kinked hair[6]

## See also[edit]

* Olmsted syndrome
* List of cutaneous conditions
* List of conditions caused by problems with junctional proteins

## References[edit]

1. ^ a b c d Rapini, Ronald P.; Bolognia, Jean L.; Jorizzo, Joseph L. (2007). Dermatology: 2-Volume Set. St. Louis: Mosby. ISBN 978-1-4160-2999-1.
2. ^ a b Protonotarios, Nikos; Tsatsopoulou, Adalena (2006). "Naxos disease: Cardiocutaneous syndrome due to cell adhesion defect". Orphanet Journal of Rare Diseases. 1 (1): 4. doi:10.1186/1750-1172-1-4. PMC 1435994. PMID 16722579.
3. ^ McKoy G, Protonotarios N, Crosby A, et al. (June 2000). "Identification of a deletion in plakoglobin in arrhythmogenic right ventricular cardiomyopathy with palmoplantar keratoderma and woolly hair (Naxos disease)". Lancet. 355 (9221): 2119–24. doi:10.1016/S0140-6736(00)02379-5. PMID 10902626. S2CID 39821701.
4. ^ "Keratoderma with woolly hair". Genetics Home Reference. 17 April 2018. Retrieved 17 April 2018.
5. ^ "Naxos disease - About the Disease - Genetic and Rare Diseases Information Center". rarediseases.info.nih.gov. Retrieved 9 March 2023.
6. ^ "Naxos disease | Genetic and Rare Diseases Information Center (GARD) – an NCATS Program". rarediseases.info.nih.gov. Retrieved 4 April 2021.

## External links[edit]

Classification|

* OMIM: 601214
* MeSH: C538346

|

* v
* t
* e

Cytoskeletal defects

Microfilaments|

| Myofilament|

| Actin|

* Hypertrophic cardiomyopathy 11
* Dilated cardiomyopathy 1AA
* DFNA20
* Nemaline myopathy 3

|

Myosin|

* Elejalde syndrome
* Hypertrophic cardiomyopathy 1, 8, 10
* Usher syndrome 1B
* Freeman–Sheldon syndrome
* DFN A3, 4, 11, 17, 22; B2, 30, 37, 48
* May–Hegglin anomaly

Troponin|

* Hypertrophic cardiomyopathy 7, 2
* Nemaline myopathy 4, 5

Tropomyosin|

* Hypertrophic cardiomyopathy 3
* Nemaline myopathy 1

Titin|

* Hypertrophic cardiomyopathy 9

Other|

* Fibrillin
* Marfan syndrome
* Weill–Marchesani syndrome
* Filamin
* FG syndrome 2
* Boomerang dysplasia
* Larsen syndrome
* Terminal osseous dysplasia with pigmentary defects

IF|

| 1/2|

* Keratinopathy (keratosis, keratoderma, hyperkeratosis): KRT1
* Striate palmoplantar keratoderma 3
* Epidermolytic hyperkeratosis
* IHCM
* KRT2E (Ichthyosis bullosa of Siemens)
* KRT3 (Meesmann juvenile epithelial corneal dystrophy)
* KRT4 (White sponge nevus)
* KRT5 (Epidermolysis bullosa simplex)
* KRT8 (Familial cirrhosis)
* KRT10 (Epidermolytic hyperkeratosis)
* KRT12 (Meesmann juvenile epithelial corneal dystrophy)
* KRT13 (White sponge nevus)
* KRT14 (Epidermolysis bullosa simplex)
* KRT17 (Steatocystoma multiplex)
* KRT18 (Familial cirrhosis)
* KRT81/KRT83/KRT86 (Monilethrix)
* Naegeli–Franceschetti–Jadassohn syndrome
* Reticular pigmented anomaly of the flexures

|

* Desmin: Desmin-related myofibrillar myopathy
* Dilated cardiomyopathy 1I

* GFAP: Alexander disease

* Peripherin: Amyotrophic lateral sclerosis

* Neurofilament: Parkinson's disease
* Charcot–Marie–Tooth disease 1F, 2E
* Amyotrophic lateral sclerosis

* Laminopathy: LMNA
* Mandibuloacral dysplasia
* Dunnigan Familial partial lipodystrophy
* Emery–Dreifuss muscular dystrophy 2
* Limb-girdle muscular dystrophy 1B
* Charcot–Marie–Tooth disease 2B1
* LMNB
* Barraquer–Simons syndrome
* LEMD3
* Buschke–Ollendorff syndrome
* Osteopoikilosis
* LBR
* Pelger–Huet anomaly
* Hydrops-ectopic calcification-moth-eaten skeletal dysplasia

Microtubules|

| Kinesin|

* Charcot–Marie–Tooth disease 2A
* Hereditary spastic paraplegia 10

|

Dynein|

* Primary ciliary dyskinesia
* Short rib-polydactyly syndrome 3
* Asphyxiating thoracic dysplasia 3

Other|

* Tauopathy
* Cavernous venous malformation

Membrane|

* Spectrin: Spinocerebellar ataxia 5
* Hereditary spherocytosis 2, 3
* Hereditary elliptocytosis 2, 3

Ankyrin: Long QT syndrome 4

* Hereditary spherocytosis 1

Catenin|

* APC
* Gardner's syndrome
* Familial adenomatous polyposis
* plakoglobin (Naxos syndrome)
* GAN (Giant axonal neuropathy)

Other|

* desmoplakin: Striate palmoplantar keratoderma 2
* Carvajal syndrome
* Arrhythmogenic right ventricular dysplasia 8

* plectin: Epidermolysis bullosa simplex with muscular dystrophy
* Epidermolysis bullosa simplex of Ogna

* plakophilin: Skin fragility syndrome
* Arrhythmogenic right ventricular dysplasia 9

* centrosome: PCNT (Microcephalic osteodysplastic primordial dwarfism type II)

Related topics: Cytoskeletal proteins
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