Spondyloepiphyseal Dysplasia Tarda is a hereditary condition characterized by skeletal abnormalities. It is caused by mutations in the COL2A1 gene. This condition follows an autosomal dominant inheritance pattern, which means it can be passed down from an affected parent to their children. However, it is important to note that not all individuals with a mutation in the COL2A1 gene will develop this condition, as there can be variability in its expression.
Spondyloepiphyseal Dysplasia Tarda (SEDT) is a rare genetic disorder that affects bone and cartilage development. It is characterized by short stature, abnormal curvature of the spine (scoliosis), and changes in the shape and structure of the bones in the spine and joints.
SEDT is indeed hereditary, meaning it is passed down from parents to their children through genetic mutations. The condition is inherited in an autosomal dominant manner, which means that a person with SEDT has a 50% chance of passing the mutated gene to each of their children.
The specific gene associated with SEDT is the COL2A1 gene, which provides instructions for making a protein called type II collagen. Mutations in this gene disrupt the normal production or structure of type II collagen, leading to the characteristic features of SEDT.
It is important to note that not all individuals with a COL2A1 gene mutation will develop SEDT. The severity and symptoms of the condition can vary widely, even among affected family members. This is due to the phenomenon of variable expressivity, which means that the same genetic mutation can result in different manifestations of the disorder.
Genetic testing can be performed to confirm a diagnosis of SEDT and to identify the specific gene mutation involved. Genetic counseling is recommended for individuals and families affected by SEDT to understand the inheritance pattern and the potential risks of passing the condition to future generations.