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.
Love in Excess; or, The Fatal Enquiry included several prefatory poems. The poems flatter Haywood's narrative skills and her ability to present "the power of physical and emotional love". The poems that were published in the early editions praised "Love in Excess", but in the 6 edition, they also noticed Haywood's body of work, suggesting her higher reputation as a writer. Positive reaction to her work influenced more women to publish. (109-110) Love in Excess; or, The Fatal Enquiry Love in Excess (1719–1720) is Eliza Haywood's best known novel. It details the amorous escapades of Count D'Elmont, a rake who becomes reformed over the course of the