Study of Glycogen Storage Disease and Associated Disorders

A Study of Collateral Disorders of Glycogen Storage Disease

Glycogen, is the storage form of glucose. It is usually formed from sugar and stored in the liver. When tissues, such as muscle, need glucose for fuel the stored glycogen is converted into glucose with the help of enzymes produced in the body. Glycogen storage disease (GSD) refers to a group of conditions characterized by abnormal storage of glycogen due to the absence of particular enzymes needed in the process of storing and using glycogen.

This study addresses the related metabolic abnormalities of glycogen storage disease (GSD). As patients with disorders of glycogen metabolism are followed it becomes apparent that the condition is much more complex than initially thought.

Researchers believe that patients suffering from glycogen storage disorders should be followed and monitored for other heritable metabolic disorders.

This study will attempt to determine the frequency of associated disorders in patients with GSD. In addition, the study will look at the current management of these patients to see if the prognosis and course of the disease is changed.

Study Overview

• Status: Completed
• Conditions: Glycogen Storage Disease

Detailed Description

This study addresses the related metabolic abnormalities of the glycogeneses. As more older individuals with glycogen storage disease are followed and studied, it becomes apparent that when individuals with glycogenosis are viewed from a longitudinal perspective, the condition is much more complex and diverse in its related conditions than one would have reason to believe, even in hindsight. It is relevant to follow these individuals, searching for abnormalities not only with glycogen storage disease in mind, but also because other heritable metabolic disorders, including cystinosis and cystic fibrosis, reflect the accumulation of associated disorders with age which often have no apparent direct association with GSD.

• Study Type: Observational
• Enrollment: 20

Contacts and Locations

Study Locations

• United States
  • Maryland
    • Bethesda, Maryland, United States, 20892
      • National Institute of Child Health and Human Development (NICHD)

Participation Criteria

Eligibility Criteria

• Ages Eligible for Study: Child; Adult; Older Adult
• Accepts Healthy Volunteers: No
• Genders Eligible for Study: All

Description

Patients age 20 or older, male or female.

Study Plan

How is the study designed?

Collaborators and Investigators

• Sponsor: Eunice Kennedy Shriver National Institute of Child Health and Human Development (NICHD)

Publications and helpful links

General Publications

• Chen YT, Coleman RA, Scheinman JI, Kolbeck PC, Sidbury JB. Renal disease in type I glycogen storage disease. N Engl J Med. 1988 Jan 7;318(1):7-11. doi: 10.1056/NEJM198801073180102.
• Goans RE, Weiss GH, Vieira NE, Sidbury JB, Abrams SA, Yergey AL. Calcium kinetics in glycogen storage disease type 1a. Calcif Tissue Int. 1996 Dec;59(6):449-53. doi: 10.1007/BF00369209.

Study record dates

Study Major Dates

• Study Start: November 1, 1992
• Study Completion: April 1, 2001

Study Registration Dates

• First Submitted: November 3, 1999
• First Submitted That Met QC Criteria: December 9, 2002
• First Posted (Estimate): December 10, 2002

Study Record Updates

• Last Update Posted (Estimate): March 4, 2008
• Last Update Submitted That Met QC Criteria: March 3, 2008
• Last Verified: October 1, 1999

More Information

Terms related to this study

• Keywords: Electroretinogram; Glycogen Storage Disease; Fluorescein Angiogram; Electrooculography
• Additional Relevant MeSH Terms: Genetic Diseases, Inborn; Carbohydrate Metabolism, Inborn Errors; Metabolism, Inborn Errors; Metabolic Diseases; Glycogen Storage Disease
• Other Study ID Numbers: 930020; 93-CH-0020