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Glycogen Storage Disease Type 13
Glycogen Storage Disease due to Muscle Beta-Enolase Deficiency

Presentation

However, the focus of the book remains clinical, describing symptoms and signs at presentation, how to come to a diagnosis and methods for treatment. As with the previous edition, the book can be used in two main ways. [books.google.com]

Clinical Presentation  Hepatic Presentation  Hepatomegaly, short stature, hypoglycemia, and hyperlipidemia predominate in children, may be indistinguishable from GSD I.  Splenomegaly can be present.  kidneys are not enlarged and renal function is [slideshare.net]

Glycogenosis type 13 Muscle enolase deficiency Muscular enolase deficiency Prevalence: Inheritance: Autosomal recessive Age of onset: Adult ICD-10: E74.0 OMIM: 612932 UMLS: C2752027 MeSH: - GARD: 2125 MedDRA: - The documents contained in this web site are presented [orpha.net]

Treatment

However, the focus of the book remains clinical, describing symptoms and signs at presentation, how to come to a diagnosis and methods for treatment. As with the previous edition, the book can be used in two main ways. [books.google.com]

Side effects: Infusion reactions Predictors of good histologic response to treatment of infant onset type 21 Low glycogen levels Mild ultrastructural damage High proportion of type I muscle fibers Young age at baseline Albuterol (8 mg bid): May improve [neuromuscular.wustl.edu]

The material is in no way intended to replace professional medical care by a qualified specialist and should not be used as a basis for diagnosis or treatment. [orpha.net]

Dietary Treatment  The goal of treatment is, as far as possible, to prevent hypoglycemia, thus limiting secondary metabolic derangements.  Initially, treatment consisted of frequent carbohydrate- enriched meals during day and night.  In 1974, continuous [slideshare.net]

Prognosis

Follow-up, Complications, Prognosis,  Proximal and distal renal tubular as well as glomerular functions are at risk.  Single or multiple liver adenomas may develop in the second or third decade.  Osteopenia.  Anemia.  Polycystic ovaries (PCOs).  [slideshare.net]

[…] function in some patients Liver glycogen phosphorylase gene: PYGL; AR tissues: liver glycogen levels/ structure: inc amnt; normal structure Clinical Sx: Type VI (Hers Dz) Mild to moderate hypoglycemia, mild ketosis, growth retardation and hepatomeglay; prognosis [quizlet.com]

Treatment and Prognosis The treatment of choice for a patient having an acute attack of periodic paralysis is by correction of abnormal potassium levels. Severe hyperkalemia necessitates emergency treatment with intravenous (IV) glucose and insulin. [clinicalgate.com]

Chien YH, Lee NC, Chen CA, et al. (2015) Long‐term prognosis of patients with infantile‐onset Pompe disease diagnosed by newborn screening and treated since birth. Journal of Pediatrics 166: 985–991. [els.net]

Etiology

Diagnostic approaches to pediatric cardiomyopathy of metabolic genetic etiologies and their relation to therapy. Prog Pediatr Cardiol 2007; 24(1): 15–25. CrossRef PubMed Google Scholar Kollberg et al. [link.springer.com]

On the other hand, the late-onset variant of GSD IV (adult polyglucosan body disease APBD) is one of several polyglucosan disorders (including La- fora disease) due to different etiologies. [archive.org]

On the other hand, the late-onset variant of GSD IV (adult polyglucosan body disease APBD) is one of several polyglucosan disorders (including Lafora disease) due to different etiologies. [ncbi.nlm.nih.gov]

Diverse etiologies (Figure 1 ) implicated in acute RM share a common final pathway, increased intracellular free ionized calcium, leading to muscle cell death through the activation of a number of detrimental mechanisms such as enzymatic activation and [ojrd.biomedcentral.com]

"Primary thrombocytopenic purpura and acquired hemolytic anemia; evidence for a common etiology". Archives of Internal Medicine. 87 (1): 48–65. doi:10.1001/archinte.1951.03810010058005. PMID 14782741. ^ "Evans syndrome". [en.wikipedia.org]

Epidemiology

[…] with homozygous Arg50Stop mutation Linearization of internal architecture on NADH Type 1 muscle fiber atrophy Rare: Rimmed vacuoles Chronic myopathic changes: Unusual Muscle glycogen level: High; 2- to 4-fold PYGM variant: PYGM myopathy, Dominant 39 Epidemiology [neuromuscular.wustl.edu]

12 - Glycogenosis due to aldolase A deficiency - Glycogenosis type 12 Classification (Orphanet): - Inborn errors of metabolism - Rare genetic disease - Rare hematologic disease Classification (ICD10): - Endocrine, nutritional and metabolic diseases - Epidemiological [csbg.cnb.csic.es]

GSD I is typically treated with frequent small meals of carbohydrates and cornstarch to prevent low blood sugar, while other treatments may include allopurinol and human granulocyte colony stimulating factor. [21] Epidemiology [ edit ] Overall, according [en.wikipedia.org]

Pathophysiology

Pathophysiology In this condition, a deficiency of the M subunit ( PFKM ) of the phosphofructokinase enzyme impairs the ability of cells such as erythrocytes and rhabdomyocytes (skeletal muscle cells) to use carbohydrates (such as glucose ) for energy [infogalactic.com]

[…] electron-transferring flavoprotein and CoQ oxidoreductase deficiencies) Lactate dehydrogenase deficiency—Type XI Combination of I to V Neutral lipid storage disease with myopathy; neutral lipid storage disease with ichthyosis Beta enolase deficiency—Type XII Pathophysiology [clinicalgate.com]

Seminal research by Carl and Gerty Cori into the pathophysiology of glycogen metabolism opened up scientific universe of hormonal signalling, phosphorylation control and second messengers. [els.net]

Pathophysiology Metabolic Pathway Metabolic pathways showing defects in various glycogen storage diseases, (ɔ) Image courtesy of WikiDoc.org, by " Dr. [wikidoc.org]

The syndrome of rhabdomyolysis: pathophysiology and diagnosis. Eur J Intern Med. 2007;18(2):90–100. PubMed Google Scholar Jhawar M, George P, Pawar B. [ojrd.biomedcentral.com]

Prevention

[…] to reduce or prevent further deterioration of renal function. [slideshare.net]

These are prevented by avoiding dietary carbohydrate loads. Maintenance therapy with the carbonic anhydrase inhibitor (CAI) acetazolamide is usually indicated to prevent attacks. [clinicalgate.com]

[…] rhamdomyolysis and myoglobinuria triggered by an illness, w/ fever, exercise, fasting or exposure to cold temps -lipid droplets accumulate in pts muscle tissue and his/her plasma triglycerides and free fatty acids are elevated tx: high carb, low fat diet can prevent [quizlet.com]

GSD I is typically treated with frequent small meals of carbohydrates and cornstarch to prevent low blood sugar, while other treatments may include allopurinol and human granulocyte colony stimulating factor. [21] Epidemiology [ edit ] Overall, according [en.wikipedia.org]

[…] out of exon 2 Splicing is "leaky"; Some functional enzyme is produced Common (> 70%) in adult onset weakness & later respiratory failure Uncommon in children Tyr455Phe: Juvenile onset Missense: Most other mutations Many allow precursor formation But prevent [neuromuscular.wustl.edu]

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