Pfeiffer Syndrome Overview What is Pfeiffer syndrome? Pfeiffer syndrome is a genetic condition where the bones (sutures) in the skull close before the brain is fully grown (craniosynostosis). This causes deformities. Characteristics that lead to a Pfeiffer syndrome diagnosis include an underdeveloped or sunken face, bulging or wide eyes and an abnormally shaped head. Another characteristic is when the thumbs and the first (big) toe bends away from other fingers and toes. What are the types of Pfeiffer syndrome? There are three different types of Pfeiffer syndrome based on the severity of the condition, including: Type 1: Type 1 or classic Pfeiffer syndrome has mild symptoms, including facial deformities and well-defined thumbs and big toes. Children diagnosed with classic Pfeiffer syndrome usually have an average life expectancy and typical intelligence with treatment. Type 2: Type 2 Pfeiffer syndrome is more severe than type 1, often with more complex bone growth abnormalities in th...
Pompe Disease Overview What is Pompe disease? Pompe disease is a type of glycogen storage disease, a genetic condition in which a complex sugar called glycogen builds up in your body’s cells. The disease results from the deficiency of a digestive enzyme called acid alpha-glucosidase (GAA). GAA normally breaks down complex sugars in your body. Other names for the condition include: Pompe’s disease. Acid maltase deficiency. Glycogen storage disease type II (GSD2). Providers also refer to Pompe disease (pronounced “pom-pay”) as a lysosomal storage disease. Lysosomes are small compartments inside your cells that hold and recycle certain substances. Enzymes such as GAA (or acid maltase, hence the name acid maltase deficiency) help break down these substances. A lack of this enzyme causes glycogen to build up within the lysosomes. This buildup occurs in the cells of your organs and tissues, especially your heart and skeletal muscles, causing them to break down. Types of this condition Resear...