Presentation
Neuromuscular syndromes are presented clinically either as a case study or as an overview from the literature, accompanied by text presenting molecular defects, and differential diagnosis. [books.google.de]
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]
The clinical presentation is that of progressive/relapsing and remitting muscle weakness present for more than 2 months, symmetrical proximal and distal extremity weakness and hyporeflexia. [neuroweb.us]
Additionally, even though most myopathies present with proximal shoulder and girdle weaknesses, some forms may present with distal weakness and, thereby, mimic neuropathies. [mayomedicallaboratories.com]
Age In its classic form, glycogen-storage disease type IV presents during the first year of life with hepatosplenomegaly and failure to thrive. Patients with nonprogressive liver disease may present later in childhood. [emedicine.medscape.com]
Entire Body System
- Sepsis
[…] mellitus Gck pleomorphic xanthoastrocytoma Gck, Ppp1r3a Poisoning Gsk3b Polyglucosan Body Disease, Adult Form Gbe1 POLYGLUCOSAN BODY MYOPATHY 2 Gyg1 prostate cancer Ppp1r3c Prostatic Neoplasms Gsk3b schizophrenia Gsk3a, Gsk3b sciatic neuropathy Gsk3b Sepsis [rgd.mcw.edu]
The mortality is high secondary to frequent occurrence of multiple organ failure and sepsis. Muscle strength recovers slowly over several months. Serum CK levels are normal or moderately elevated. [sites.google.com]
Workup
Secondary: Postradiation neck extensor myopathy, Anterior scar contracture, Postbotulinum toxin injection, Cushing syndrome, Carnitine deficiency, Hypothyroidism, Hypokalemia, Hyperparathyroidism Other : Malignancy, Postsurgical Diagnostic Workup of Dropped [sites.google.com]
Hypertrophy
- Ventricular Hypertrophy
Hypertrophy Gsk3a Liver Injury Gck Liver Reperfusion Injury Gsk3b Mammary Neoplasms, Experimental Gsk3b mantle cell lymphoma Gsk3b maturity-onset diabetes of the young Gck maturity-onset diabetes of the young type 2 Gck melanoma Gys2 mental depression [rgd.mcw.edu]
Treatment
The selection of the most appropriate form of post surgical treatment for most tumors is predicated on the precise identification of the tumor cells. [books.google.de]
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]
Effectively monitor the pace of drug clearing in patients undergoing pharmacogenomic treatments with a new chapter on this groundbreaking new area. [books.google.com]
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]
Prognosis [ edit ] A 2009 review noted that muscle weakness usually begins after age 20 and after 20–30 years, the person usually requires a wheel chair for mobility. [en.wikipedia.org]
The course of AMSAN is typically fulminant and the prognosis is generally poor. Median time to regain ability to walk 5 meters with assistance is 1 month. Iv immunoglobulin are less effective than in GBS. [neuroweb.us]
Treatment and Prognosis: Fewer than 20% of patients survive beyond 3 years. Response to corticosteroids is variable, but some do respond. Most require a 2nd line cytotoxic agent. BMT for refractory cases. [sites.google.com]
Etiology
Etiology The etiology of GSD is best understood by following the metabolic events leading to the synthesis (glycogenesis) and degradation of glycogen (glycogenolysis). [knowledge.statpearls.com]
^ Carrillo N, Malicdan MC, Huizing M (2018) GNE myopathy: Etiology, diagnosis, and therapeutic challenges. Neurotherapeutics doi: 10.1007/s13311-018-0671-y ^ "Inclusion body myopathy 3". NIH Genetic and Rare Diseases Information Center. [en.wikipedia.org]
Pathogenesis: Unknown etiology. Eosinophilia may be the result of effect of T-cell clones. Oligoclonal expansion of T cells within the muscle in PM is noted. [sites.google.com]
Epidemiology
[…] related nemaline myopathy and response to acetylcholinesterase inhibitors Identification of a novel form of recessive SCN4A-related congenital myopathy Other neuromuscular diseases and basic research Prevalence of HSMNR in the Czech Republic Reviewing the epidemiology [institut-myologie.org]
Epidemiology The overall incidence of GSD (all forms) in Europe, Canada, and the United States is estimated to be between 1 in 20,000 and 1 in 40,000. [knowledge.statpearls.com]
Epidemiology Frequency International Glycogen-storage disease type IV represents an uncommon form of glycogen-storage disease. [emedicine.medscape.com]
Chinnery PF, Johnson MA, Wardell TM et al. (2000) The epidemiology of pathogenic mitochondrial DNA mutations. Ann Neurol 48: 188–193 PubMed Google Scholar 18. [link.springer.com]
It appears that the general spectrum of myopathies described in the world literature is also seen in India, although the prevalence is difficult to ascertain, as there is very little published epidemiological data. [annalsofneurosciences.org]
Pathophysiology
Pathophysiology Figure 1 summarizes the pathophysiology for each GSD, along with organ(s) affected, as well as the potential signs. In general, GSDs primarily affect the liver, skeletal muscle, or both. [knowledge.statpearls.com]
The pathophysiology is still unclear. Cardiac involvement may occur. [en.wikipedia.org]
Pathophysiology Deficient glycogen-branching enzyme activity results in the formation of abnormal glycogen with long, unbranched outer chains and decreased solubility. [emedicine.medscape.com]
The following algorithms are available in Special Instructions: -Inherited Motor Neuron Disease Testing Algorithm -Neuromuscular Myopathy Testing Algorithm Clinical Information Discusses physiology, pathophysiology, and general clinical aspects, as they [mayomedicallaboratories.com]
MELAS and L-arginine therapy: pathophysiology of stroke-like episodes Ann N Y Acad Sci 2010; 1201: 104-. [69] Iizuka T, Sakai F, Endo M, Suzuki N. Response to sumatriptan in headache of MELAS syndrome Neurology 2003; 61: 577-8. [70] Santa KM. [benthamopen.com]
Prevention
Knowledge of the pathogenesis, genetics, and molecular biology of neuromuscular disorders is essential both in developing and applying new therapies and preventive measures, and in formulating genetic and prognostic advice. [books.google.com]
In skeletal muscle, e.g., GSD 5, this can prevent proper muscle functioning, exercise intolerance and rhabdomyolysis. [knowledge.statpearls.com]
Prevention of secondary complications: Gait aids to prevent falls and urologic management to prevent urosepsis. Surveillance: Periodic assessment of bladder function, gait, sensation in the distal lower extremities, and cognition. [ncbi.nlm.nih.gov]
[…] to reduce or prevent further deterioration of renal function. [slideshare.net]