Glycogen phosphorylase V, McArdle's Disease). More than 65 mutations in the PYGM gene that lead to McArdle disease have been identified to date. Symptoms of McArdle disease include muscle weakness, myalgia, and lack of endurance, all stemming from low glucose levels in muscle tissue. Mutations in the liver isoform of glycogen phosphorylase (PYGL) are associated with Hers' Disease (glycogen storage disease type VI). Hers' disease is often associated with mild symptoms normally limited to hypoglycemia, and is sometimes difficult to diagnose due to residual enzyme activity. The brain isoform of glycogen phosphorylase (PYGB) has been proposed as a biomarker for gastric cancer.
Wanamaker Organ This level of dedication was maintained when corporate parentage shifted from the Wanamaker family to Carter Hawley Hale Stores followed by Woodward & Lothrop, The May Department Stores Company, Lord & Taylor, and finally to Macy's. The Wanamaker Organ was originally built by the Los Angeles Art Organ Company, successors to the Murray M. Harris Organ Co., for the 1904 St. Louis World's Fair. It was designed to be the largest organ in the world, an imitation of a full-size orchestra with particularly complete resources of full organ tone including mixtures. In addition to its console, the organ was originally