Inheritance of Krabbe Disease
Krabbe disease is a hereditary condition that follows an autosomal recessive pattern. This means that for a child to inherit Krabbe disease, both parents must be carriers of the disease gene. It is important to note that carriers of the disease usually do not show any symptoms and may not even be aware that they carry the gene.
When two carriers of Krabbe disease have children, there is a one in four chance that the child will inherit the condition. This means that in 25% of cases, the child will have Krabbe disease, while in the remaining 75% of cases, the child will not be affected by the condition.
Diagnosis
Diagnosing Krabbe disease involves evaluating the symptoms and conducting blood tests to identify the specific enzyme deficiency associated with the disease. To confirm the diagnosis, genetic testing is commonly performed. In certain instances, an abnormal newborn screen may lead to the diagnosis. Obstetricians may also opt for prenatal screening through amniocentesis if there is a known family history of Krabbe disease.