What causes Nijmegen breakage syndrome?

Mutations in the NBN gene cause Nijmegen breakage syndrome. The NBN gene provides instructions for making a protein called nibrin. This protein is involved in several critical cellular functions, including the repair of damaged DNA. DNA can be damaged by agents such as toxic chemicals or radiation.

What is Nijmegen breakage syndrome like disorder?

Nijmegen breakage syndrome-like disorder is a rare, genetic multiple congenital anomalies/dysmorphic syndrome characterized by growth retardation, short stature, developmental delay, intellectual disability, craniofacial dysmorphism (i.e. severe microcephaly, sloping forehead, prominent eyes, broad nasal ridge.

What is Bloom’s syndrome?

Listen to pronunciation. (… SIN-drome) A rare, inherited disorder marked by shorter than average height, a narrow face, a red skin rash that occurs on sun-exposed areas of the body, and an increased risk of cancer.

What is Noonan syndrome?

Noonan syndrome is a genetic disorder that prevents normal development in various parts of the body. A person can be affected by Noonan syndrome in a wide variety of ways. These include unusual facial characteristics, short stature, heart defects, other physical problems and possible developmental delays.

What is Charlie syndrome?

Charlie M syndrome is a rare bone developmental disorder which belongs to a group of oromandibular limb hypogenesis syndromes that includes hypoglossia-hypodactyly and glossopalatine ankylosis (see these terms).

What is Kindler syndrome?

Kindler syndrome is a rare type of epidermolysis bullosa, which is a group of genetic conditions that cause the skin to be very fragile and to blister easily. From early infancy, people with Kindler syndrome have skin blistering, particularly on the backs of the hands and the tops of the feet.

Is Noonan syndrome a disability?

Noonan syndrome is a genetic condition that typically includes heart abnormalities and characteristic facial features. About one-third of affected children have mild intellectual disability. Noonan syndrome may be inherited in up to 75 per cent of cases.

Who has Noonan syndrome?

It’s estimated that between 1 in 1,000 and 1 in 2,500 children are born with Noonan syndrome. It affects both sexes and all ethnic groups equally.

What is Robinow syndrome?

Robinow syndrome is an extremely rare inherited disorder that affects development of the bones and other parts of the body. There are two forms of Robinow syndrome that are distinguished by signs and symptoms, severity, mode of inheritance, and the genes associated with them.

What is Donnai Barrow syndrome?

Individuals with Donnai-Barrow syndrome have severe hearing loss caused by abnormalities of the inner ear (sensorineural hearing loss).

What does a child with Noonan syndrome look like?

Most children with Noonan syndrome have differences in the shape of their face and head. These are noticeable at birth and include: wide-set pale blue or blue-green eyes. thick, low-set ears.

What does someone with Noonan syndrome look like?

People with Noonan syndrome have distinctive facial features such as a deep groove in the area between the nose and mouth (philtrum ), widely spaced eyes that are usually pale blue or blue-green in color, and low-set ears that are rotated backward.