Tuesday, January 19, 2010

Pompe Neuromuscular Disease

Pompe disease is a neuromuscular metabolic disorder caused by a deficiency of an enzyme used to break down glycogen. Glycogen is a stored form of sugar used for energy. Without the enzyme to break down glycogen, a myopathy results causing progressive muscle weakness throughout the body and affects various body tissues, particularly in the heart, skeletal muscles, liver and nervous system.

Pompe disease has historically been divided into three forms defined by age of onset and progression of symptoms. More recently there has been a trend to divide the disease into two groups: infantile onset (involving the massive enlargement of the heart) and late onset (no heart enlargement).

Infantile, or early onset, is noticed shortly after birth. Symptoms include severe lack of muscle tone, weakness, and enlarged liver and heart. Mental function is not affected. Development appears normal for the first weeks or months but slowly declines as the disease progresses. Swallowing may become difficult and the tongue may protrude and become enlarged. Most children die from respiratory or cardiac complications before 2 years of age.

Enter John Crowley, biotech executive and entrepreneur, and a man played by Brendan Fraser in the film "Extraordinary Measures," due for release nationwide on January 22, 2010. In 1998, two of Crowley's children were diagnosed with Pompe disease. To further research towards a cure of Pompe disease, Crowley took over as CEO of Novazyme. In 2001 Novazyme merged into Genzyme Corporation. In 2003, Crowley's children began receiving enzyme replacement therapy. The radical new therapy is credited with saving his children's lives.

The movie is based on a book by Geeta Anand entitled, "The Cure: How a Father Raised $100 Million - And Bucked the Medical Establishment - In a Quest to Save His Children," and stars Harrison Ford, Brendan Fraser and Keri Russell.

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neuromuscular disease, pompe, enzyme therapy