La enfermedad de Von Gierke, también conocida como enfermedad de deposito de glucógeno tipo Ia, es una enfermedad producida por la. VON GIERKE DISEASE: NEW TRENDS IN MANAGEMENT. [online]. , vol, n.2, pp ISSN Von Gierke disease, also known. English Translation, Synonyms, Definitions and Usage Examples of Spanish Word ‘enfermedad de von Gierke’.
|Published (Last):||5 July 2008|
|PDF File Size:||6.46 Mb|
|ePub File Size:||4.11 Mb|
|Price:||Free* [*Free Regsitration Required]|
Send the link below via email or IM. Consecuencias Esta enfermedad puede ocasionar: Cancel Reply 0 characters used from the allowed.
Von Gierke disease, also known as glycogen storage disease type Ia, is enfermedda disease caused by deficiency of the G6Pase-a catalytic unit, which hydrolyzes glucose phosphate in the cell cytoplasm during gluconeogenesis and glycogenolysis. Some of the pyruvate will be oxidized to acetyl-CoA which can’t be fully oxidized in the TCA cycle and so the acetyl-CoA will end up in the cytosol where it will serve as a substrate for triglyceride and cholesterol synthesis resulting in hyperlipidemia.
It enfermedad de von gierke known that odd-chain fatty acids can be oxidized enferedad yield propionyl-CoA, a precursor for succinyl-CoA, in plants, specifically seedlings, the glyoxylate cycle can be used to convert fatty acids into the primary enffrmedad source of the organism. In addition, the increased pyruvate is oxidized via the pyruvate dehydrogenase complex PDHc leading to increased production of acetyl-CoA which is, in turn, used for the synthesis of fatty acids and cholesterol.
Se ha demostrado una deficiencia del transporte de la glucosafosfato en pacientes clasificados como GSD-Ib o pseudotipo I.
The amylo-alpha-1, 6-glucosidase, 4-alpha-glucanotransferase gene and mutations to it, are at the root of this condition. Increased G3P and fatty acids leads to increased triglyceride synthesis which, in conjunction with the increased cholesterol, leads to hyperlipidemia as well as fatty infiltration in hepatocytes contributing to hepatomegaly ennfermedad cirrhosis.
Inside the ER the phosphate is removed through the action of ER membrane-localized glucose 6-phosphatase. Glucosephosphate is transported from the cytosol into the lumen of the endoplasmic reticulum ER through the actions of the glucosephosphate transporter 1 G6PT1 which is encoded by the SLC37A4 gene.
ENFERMEDAD DE VON GIERKE PDF
These latter patients were identified as having deficiency in the endoplasmic reticulum ER membrane-localized glucosephosphate transporter identified as G6PT1; encoded by the SLC37A4 ve and so the disease was designated as type 1b GSD. Before this happens every chromosome is copied once, and the copy is joined enfermedad de von gierke the original by a centromere resulting in an X-shaped structure, the original chromosome enfermedad de von gierke the copy are guerke called sister chromatids.
Present to your audience. Present to your audience Start remote presentation. The designation, GSD type 1a was then used to designate the form of the disease caused by defects in the ER localized glucose 6-phosphatase. For this reason the disease is still more commonly referred to von Gierke disease. The existence of cycles in humans has not been established.
ENFERMEDAD DE VON GIERKE PDF
Evidence indicates that this glucose transport occurs via GLUT2 in the liver as this glucose transporter is transiting the ER to the plasma membrane following its synthesis. DNA is a polymer that incorporates four types of bases.
Defects in the process of glucose release from glucosephosphate result in elevations in cytosolic glucosephosphate which then leads to increases in incorporation into glycogen and subsequent excessive storage. There is a need for studies so these treatments allow for a longer term benefit and their application in humans since, as expected, the tests have been developed only in animal models. Hay dos enzimas implicadas en esta alteracion: Other complications include osteoporosis, gout, renal disease, pulmonary hypertension and hepatic adenomas which can become malignant.
Lipids are the most diverse group of biochemicals and their main structural uses are enfermedad de von gierke part of biological membranes both internal and external, such as the cell membrane, or as a source of energy. Radiology Interventional radiology Nuclear medicine Pathology Anatomical pathology Clinical pathology Clinical chemistry Clinical immunology Cytopathology Medical microbiology Transfusion medicine.
The inability to release the phosphate from glucosephopsphate results in diversion into glycolysis and production of pyruvate as well as increased diversion onto the pentose phosphate pathway.
A new hope has emerged with the arrival of gene therapy with viral vectors, strategy that is being developed hitherto, yet performed studies have shown a glimmer of hope for investigators, doctors and patients.
ENFERMEDAD DE VON GIERKE by Sofi P on Prezi
The SLC37A4 gene is located on chromosome 11q Glucosephosphatase deficiency; von Gierke disease; glycogen storage disease type I GSD I ; transgenic therapy; hepatocellular carcinoma.
In the past the prognosis for type 1 glycogen storage disease patients was poor. Do you really want to delete this prezi? The common treatment for type 1 glycogen storage disease is to maintain normal blood glucose concentration.
Following removal of the phosphate the free glucose is transported out of the ER lumen to the cytosol. The hallmark features of this disease are hypoglycemia, lactic acidosis, hyperuricemia, and hyperlipidemia. More commonly though, infants of 3—4 months of age will manifest with hepatomegaly and hypoglycemic seizures.
A chromosome from ancient Greek: The severity of the hypoglycemia and lactic acidosis can be such that in the past affected individuals died in infancy. Von Gierke disease, also known as glycogen storage disease type Ia, is a. The G6PC gene is located on chromosome 17q21 spanning Copy code to clipboard.
In the 19th century, histology was a discipline in its own right. Twelve additional mutations have been mapped to the G6PC gene: In addition, some of the pyruvate is transaminated to alanine leading to hyperalaninemia.
Type 1 Glycogen Storage Diseases
However, later kinetic studies demonstrated that the defect was actually in the G6PT1 protein. Maria Jose Bonilla Rodriguez. However, these patients were not deficient in glucosephosphatase activity. Comments 0 Please log in to add your comment. No cure has been found for this disease and it can turn out vom be lethal if no appropriate management is given during the first two decades of life. A novel form of type 1I GSD was identified in and since it was thought to be the result of defects in the microsomal inorganic phosphate transporter it was designated as type 1c GSD.
Type enrermedad glycogen storage disease GSD1 is an autosomal recessive disorder that was first described in by E.
The treatment consists of nutritional therapy associated with a number of conventional drugs. The free glucose must then be transported back to the cytosol as well as the released inorganic phosphate, P i. The incresased levels of pyruvate lead to increased igerke produciton via lactate dehydrogenase LDH and alanine via alanine transaminase ALT.
Check out this article to learn more or contact your system administrator.