Danbolt-Kloss Syndrome

Danbolt Kloss syndrome is a rare disease characterized by the appearance of multiple pigment spots on the skin. It was first described in 1990 by Norwegian doctors Nikolai Danbolt and Karl Kloss.

The disease manifests itself in the form of multiple, symmetrically located pigment spots, which can be of various sizes and shapes. They are usually located on the face, neck, chest and arms. Age spots can be dark or light, but never change color during the day.

The causes of the disease are still unknown, but it is believed to be related to genetic factors and can be inherited. Women are at higher risk of developing the syndrome than men.

Treatment for danbolt closs syndrome involves removing pigment spots using laser therapy or surgery. However, since the disease is rare, it is not always possible to find a specialist who would treat this syndrome.

In general, Danbolt Kloss syndrome is a rare and poorly understood disease that causes cosmetic defects on the skin and requires specialized treatment.



Danbolt - Closs syndrome is a rare autosomal recessive disease caused by a mutation in the NLGN4X gene, which encodes the Neurexin-4 beta protein. The syndrome manifests itself in the form of a number of neurological and psychomotor symptoms, such as infantility, movement disorders, speech problems, visual and hearing disorders. The disease usually appears in childhood and tends to progress throughout life. The purpose of this article is to describe the main manifestations of Danbolt-Kloss syndrome, the causes and methods of diagnosing this disease, as well as possible treatment methods and prospects for possible development.

Dunbolt-Kloss syndrome is caused by gene mutations. The _NLGN4_ gene is located on the short arm of chromosome 4, is the first gene with this entry and is expressed in the brain. Neurogenetic analysis has identified three known mutations of the _NLGN_ _4_X gene, each of which is reflected in different manifestations of this syndrome in patients: • a mutation known as _p._ _D_ _63_ _N_ _, causes severe Danbolt-Kloss syndrome, which is manifested by psychomotor delay, deafness, learning difficulties and behavior problems; • mutation, known as _p._ H70P, is characterized by moderate signs of the disease, such as poor adaptation in society, communication problems, visual impairment; in addition, phonemic hearing and speech suffer, which tend to weaken over time;