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Las glucogenosis son enfermedades hereditarias del metabolismo del glucógeno. Se reconocen más de 12 tipos y afectan principalmente al hígado y al músculo, by Glycogen storage disease 1b: Speculation on the role of autoimmunity. Tratamiento continuo con factores estimulantes de colonias (G-CSF) de la neutropenia asociada a la glucogenosis tipo IbTreatment with granulocyte colony . A glycogen storage disease (GSD) is the result of an enzyme defect. These enzymes normally catalyze reactions that ultimately convert.

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Additional information Further information on this glucogenois Classification s 5 Gene s 1 Clinical signs and symptoms Publications in PubMed Other website s Antenatal diagnosis is possible through molecular analysis of amniocytes or chorionic villous cells.

Glycogen storage disease type I

Manifestations include epistaxis, easy bruising, menorrhagia, and bleeding during surgical procedures. MedGen Related information in MedGen. Administration of glucagon or epinephrine causes little or no increase in blood glucose concentration, but both increase serum lactate concentrations gluucogenosis.

By using this site, you agree to the Terms of Use and Privacy Policy. Serial single- gene testing. See Genetic Counseling for issues related to testing of at-risk relatives for genetic counseling purposes.

Pilot studies of hepatocyte transplantation have shown that donor cells persist. The variable presentations of glycogen storage disease type IV: Distention of the liver cells by glycogen and fat; PAS positive and diastase sensitive glycogen that is uniformly distributed within the cytoplasm; normal or only modestly increased glycogen as compared glicogenosis that seen in other liver GSDs especially GSDIII and GSDIX ; and large and numerous lipid vacuoles.

Because of its relatively high sensitivitymolecular genetic testing is increasingly the preferred confirmatory test when weighed against the need for liver biopsy to determine the level of enzyme activity.

It is also a byproduct of purine degradation. Primary liver tumors and Pepper syndrome hepatic metastases of neuroblastoma may be evoked but easily ruled out through clinical and ultrasound data.

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Mutations in brief no.

Pre-pregnancy counseling regarding diet to avoid low blood glucose and to stress the importance of blood glucose monitoring prior to and during pregnancy. Epub May These infants continue to need oral carbohydrates every few hours. Long-term management should eliminate hypoglycemic symptoms and maintain normal growth. Long-term complications of untreated GSDI include growth retardation resulting in short stature, osteoporosis, delayed puberty, gout, renal disease, pulmonary hypertension, hepatic adenomas with potential for malignant transformation, polycystic ovaries, pancreatitis, and changes in brain function.

Medical Nutrition Therapy Goals Maintain normal glucose levels and prevent hypoglycemia: Such an individual may focus on health care compliance by assisting tippo children to transition to independent understanding and management of their GSDI-related health care issues. At least a third of the carbohydrates should be supplied through the night, so that a young child goes no more than 3—4 hours without carbohydrate intake.

This article needs additional citations for verification. Pregnancy in glycogen storage disease type Ib: Glucosephosphatase deficiency increases the risk of hepatic adenoma. Mutation frequencies for glycogen tjpo disease Ia in the Ashkenazi Jewish population.

Glycogen storage disease type I GSDI is characterized by accumulation of glycogen and fat in the liver and kidneys, resulting in hepatomegaly and renomegaly. Amylase is required to digest cornstarch and may not be present until age two years.

Variations from this GeneReview in ClinVar. Management aims at avoiding hypoglycemia frequent meals, nocturnal enteral feeding through a nasogastric tube, glucogenossis later oral addition of uncooked starchacidosis restricted fructose and galactose intake, oral supplementation in bicarbonatehypertriglyceridemia diet, cholestyramine, statineshyperuricemia allopurinol and hepatic complications. By the second or third decade of life, most affected individuals exhibit hepatic adenomas, a complication of which is intrahepatic hemorrhage.

Sodium levels should also be monitored. Severe pulmonary arterial hypertension in type 1 glycogen storage disease. Due to potential negative effects of sex hormones on hepatic adenomas, combined oral contraception must be avoided in women with GSDI, especially those with adenomas [ Sechi et alAustin et al ].

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It is appropriate to offer genetic counseling including discussion of potential risks to offspring and reproductive options to young adults who are affectedare carriers, or are at risk of being carriers. Type I glycogen storage diseases: Exposure to ACE inhibitors in the second and third trimesters of pregnancy can cause fetal damage and death.

Platelet count, hemoglobin, and clotting studies should be performed because of the potential for increased bleeding at delivery [ Lewis et al ]. The differential diagnosis list includes glycogenoses types III and VI, fructose 1,6-bisphosphatase deficiency, and a few other conditions page 5but none are likely to produce all of the features of GSD I.

Systemic blood pressure measurements should be obtained at all clinic visits beginning in infancy. The metabolic characteristics of GSD Ia and Ib are quite similar, but Ib incurs a few additional problems described below.

GLUCOGENOSIS PDF

Improve hyperuricemia and hyperlipidemia and maintain normal renal function to prevent the development of renal disease. Administration of intramuscular or intravenous glucagon 0. Mutations in the glucosephosphatase-alpha G6PC gene that cause type Ia glycogen storage disease. Glucagon or epinephrine challenge test.

Glycogen Storage Disease Type I: Cornstarch is an inexpensive way to provide gradually digested glucose. Glucose-galactose malabsorption Inborn errors of renal tubular transport Renal glycosuria Fructose malabsorption.

Although elemental formulas are available for infants, many foods contain fructose or galactose in the forms of sucrose or lactose.