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Mitochondrial myopathies are types of myopathies associated with mitochondrial disease. [1] Adenosine triphosphate ( ATP ), the chemical used to provide energy for the cell, cannot be produced sufficiently by oxidative phosphorylation when the mitochondrion is either damaged or missing necessary enzymes or transport proteins.
CPEO is the most common manifestation of mitochondrial myopathy, occurring in an estimated two-thirds of all cases of mitochondrial myopathy. Patients typically present with ptosis (drooping eyelids). Other diseases like Graves' disease, myasthenia gravis and glioma that may cause an external ophthalmoplegia must be ruled out. [citation needed]
Some GSDs and a mitochondrial myopathy are known to have a pseudoathletic appearance. McArdle disease (GSD-V) and late-onset Pompe disease (GSD-II) are known to have hypertrophy, particularly of the calf muscles. [14] [15] Cori/Forbes disease (GSD-III) is known to have hypertrophy of the sternocleidomastoid, trapezius, quadriceps, and thigh ...
Mitochondrial disease can manifest in many different ways [1] whether in children [2] or adults. [3] Examples of mitochondrial diseases include: Mitochondrial myopathy [2] [3] Maternally inherited diabetes mellitus and deafness (MIDD) [4] While diabetes mellitus and deafness can be found together for other reasons, at an early age this ...
Glycogen storage disease type V (GSD5, GSD-V), [1] also known as McArdle's disease, [2] is a metabolic disorder, one of the metabolic myopathies, more specifically a muscle glycogen storage disease, caused by a deficiency of myophosphorylase. [3] [4] Its incidence is reported as one in 100,000, roughly the same as glycogen storage disease type ...
Mitochondrial encephalopathy is an umbrella term encompassing a variety of disorder that all result from disruptions in mitochondrial function. An overwhelming majority of genes that play a role in mitochondrial function are present within the nuclear DNA, with the remainder (13 proteins, 22 tRNAs, and 2 rRNAs) being encoded by the ...
Mitochondrial neurogastrointestinal encephalopathy syndrome (MNGIE) is a rare autosomal recessive mitochondrial disease. [2] It has been previously referred to as polyneuropathy, ophthalmoplegia, leukoencephalopathy, and intestinal pseudoobstruction (POLIP syndrome). [3] The disease presents in childhood, but often goes unnoticed for decades.
Mitochondrial trifunctional protein deficiency; Other names: TFP deficiency [1] Mitochondrial trifunctional protein deficiency has an autosomal recessive pattern of inheritance: Symptoms: Cardiomyopathy, skeletal myopathy [2] Types: Mutations in the HADHA and HADHB gene [2] Diagnostic method: CBC, Urine test [3] Treatment: Low fat diet, Limited ...