McArdle Disease (Phosphorylase Deficiency)

McArdle disease - Ronald Haller, M.D.

Ronald Haller, professor of neurology and neurotherapeutics at University of Texas Southwestern Medical Center in Dallas, was awarded an MDA research grant totaling $300,000 over three years to identify the cause and possible effective treatment for the oxidative defect that accompanies blocked glycogen breakdown in McArdle disease (phosphorylase deficiency).

‘Focused, Intense’ MDA Conference Advances Neuromuscular Disease Research

Turning neuromuscular disease research into treatments as quickly and effectively as possible was the overarching theme of dozens of formal presentations, nearly 200 scientific posters, and countless informal conversations at the MDA Scientific Conference, April 21-24.

A palpable sense of excitement pervaded the sold-out event thanks to the unprecedented number of experimental treatments in clinical trials for neuromuscular diseases, and the unique opportunity the conference provided for information-sharing and collaboration among scientific professionals from many disciplines.

Types of Metabolic Diseases of Muscle

This section provides information about 10 metabolic diseases of muscle. Each one gets its name from the substance that’s lacking.

For more information about these types, please click on the individual disease name.

Metabolic Diseases of Muscle


MDA leads the search for treatments and therapies for metabolic diseases of muscle. The Association also provides comprehensive supports and expert clinical care for those living with metabolic diseases of muscle.

In this section, you’ll find up-to-date information about metabolic diseases of muscle, as well as many helpful resources. This information has been compiled with input from researchers, physicians and people affected by the disease.

Here you will find information about 10 of the most common metabolic diseases of muscle:

Research Briefs: FA, MG, MM, MMD1, gene therapy

Edison drugs target FA, mitochondrial diseases


What are metabolic diseases of muscle?

Muscles and organs affected in metabolic diseases