Von Gierke disease
Von Gierke disease is a condition in which the body cannot break down glycogen. Glycogen is a form of sugar (glucose) that is stored in the liver and muscles. It is normally broken down into glucose to give you more energy when you need it.
Von Gierke disease is also called Type I glycogen storage disease (GSD I).
Type I glycogen storage disease
Von Gierke disease occurs when the body lacks the protein (enzyme) that releases glucose from glycogen. This causes abnormal amounts of glycogen to build up in certain tissues. When glycogen is not broken down properly, it leads to low blood sugar.
Von Gierke disease is inherited, which means it is passed down through families. If both parents carry a nonworking copy of the gene related to this condition, each of their children has a 25% (1 in 4) chance of developing the disease.
These are symptoms of Von Gierke disease:
Exams and Tests
Your health care provider will perform a physical exam.
The exam may show signs of:
Children with this condition are usually diagnosed before age 1.
Tests that may be done include:
If a person has this disease, test results will show low blood sugar and high levels of lactate (produced from lactic acid), blood fats (lipids), and uric acid.
The goal of treatment is to avoid low blood sugar. Eat frequently during the day, especially foods that contain carbohydrates (starches). Older children and adults may take cornstarch by mouth to increase their carbohydrate intake.
In some children, a feeding tube is placed through their nose into the stomach to provide sugars or uncooked cornstarch throughout the night. The tube can be taken out each morning.
A medicine to lower uric acid in the blood and decrease the risk for gout may be prescribed. Your provider may also prescribe medicines to treat kidney disease, high lipids, and to increase the cells that fight infection.
People with Von Gierke disease cannot properly break down fruit or milk sugar. It is best to avoid these products.
Association for Glycogen Storage Disease -- www.agsdus.org
With treatment, growth, puberty, and quality of life have improved for people with Von Gierke disease. Those who are identified and carefully treated at a young age can live into adulthood.
Early treatment also decreases the rate of severe problems such as:
These complications can occur:
When to Contact a Medical Professional
Call your provider if you have a family history of glycogen storage disease or early infant death due to low blood sugar.
There is no simple way to prevent glycogen storage disease.
Couples who wish to have a baby may seek genetic counseling and testing to determine their risk for passing on Von Gierke disease.
Bonnardeaux A, Bichet DG. Inherited disorders of the renal tubule. In: Skorecki K, Chertow GM, Marsden PA, Taal MW, Yu ASL, eds. Brenner and Rector's The Kidney. 10th ed. Philadelphia, PA: Elsevier; 2016:chap 45.
Kishnani PS, Chen Y-T. Defects in metabolism of carbohydrates. In: Kliegman RM, Stanton BF, St. Geme JW, Schor NF, eds. Nelson Textbook of Pediatrics. 20th ed. Philadelphia, PA: Elsevier; 2016:chap 87.
Santos BL, Souza CF, Schuler-Faccini L, et al. Glycogen storage disease type 1: clinical and laboratory profile. J de Pediatra (Rio J). 2014;90(6):572-579. PMID: 25019649 www.ncbi.nlm.nih.gov/pubmed/25019649.
Review Date: 5/1/2017
Reviewed By: Anna C. Edens Hurst, MD, MS, Assistant Professor in Medical Genetics, The University of Alabama at Birmingham, Birmingham, AL. Review provided by VeriMed Healthcare Network. Also reviewed by David Zieve, MD, MHA, Medical Director, Brenda Conaway, Editorial Director, and the A.D.A.M. Editorial team.
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