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A glycogen storage disease(GSD, also glycogenosisand dextrinosis) is a metabolic disordercaused by a deficiency of an enzymeor transport proteinaffecting glycogen synthesis, glycogen breakdown, or glucose breakdown, typically in musclesand/or livercells. [1] GSD has two classes of cause: genetic and environmental.
Glycogen storage disease type I (GSD I) is an inherited disease that prevents the liver from properly breaking down stored glycogen, which is necessary to maintain adequate blood sugar levels. GSD I is divided into two main types, GSD Ia and GSD Ib, which differ in cause, presentation, and treatment. There are also possibly rarer subtypes, the ...
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 ...
Testosterone is the primary male sex hormone and androgen in males. [3] In humans, testosterone plays a key role in the development of male reproductive tissues such as testicles and prostate, as well as promoting secondary sexual characteristics such as increased muscle and bone mass, and the growth of body hair.
gsd iii is ar In regards to genetics glycogen storage disease type III is inherited in an autosomal recessive pattern (which means both parents need be a carrier), and occurs in about 1 of every 100,000 live births.
The severity of this disease varies on the amount of enzyme produced. GSD IV is autosomal recessive, which means each parent has a mutant copy of the gene, but show no symptoms of the disease. Having an autosomal recessive inheritance pattern, males and females are equally likely to be affected by Andersen's disease.
Endocrinology. Glycogen storage disease type II(GSD-II), also called Pompe disease, and formerly known as GSD-IIa or Limb–girdle muscular dystrophy 2V, is an autosomal recessive metabolic disorder [ 1 ] which damages muscle and nerve cells throughout the body.
The scope of GSD VI now also includes glycogen storage disease type VIII, [2] IX [2] (caused by phosphorylase b kinase deficiency) and X [2] (deficiency protein kinase A). The incidence of GSD VI is approximately 1 case per 65,000–85,000 births, [ 2 ] representing approximately 30% all cases of glycogen storage disease .