amylopectin/asthenia

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[Polysaccharide amylopectin-type storage myopathy].

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Prijava / prijava

We report a late onset form of polysaccharide myopathy with progressive limb girdle muscles weakness, without cardiomyopathy. Muscle biopsy showed a vacuolar myopathy in type 1 fibres. The PAS positive diastase resistant deposits were made of filamentous material at electron microscopy similar to

Polysaccharide (amylopectin-like) storage myopathy histochemical ultrastructural and biochemical studies.

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Prijava / prijava

A case of an adult polysaccharide myopathy is reported in a patient with progressive muscular atrophy and weakness of limb girdles. Histochemistry and electron microscopy showed in some muscle fibers, a storage material composed of amylopectin-like filaments. Biochemical results were normal and no

Multisystem involvement in a patient due to accumulation of amylopectin-like material with diminished branching enzyme activity.

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Prijava / prijava

We report a 13-year-old boy with multisystem involvement secondary to accumulation of amylopectin-like material. He was born to consanguineous parents at full term without any complications and his maternal perinatal history was uneventful. His parents were cousins. He had normal growth and

Muscle phosphofructokinase deficiency: abnormal polysaccharide in a case of late-onset myopathy.

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Prijava / prijava

A 61-year-old woman with muscle phosphofructokinase (PFK) deficiency had mild limb weakness all her life but no cramps or myoglobinuria. For 5 years the limb weakness progressed. In muscle, PFK activity was 1% of normal and glycogen concentration was elevated (2.13%). By light microscopy, a minor

Polyglucosan storage myopathies.

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Prijava / prijava

Polyglucosan is an amylopectin-like polysaccharide associated with defective glycogen metabolism and, unlike normal glycogen, it is to some extent resistant to α-amylase digestion. It also has a characteristic fibrillar appearance under the electron microscope. Polyglucosan may aggregate into dense

Polyglucosan body myopathy: a new case.

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Prijava / prijava

We report a 51-yr-old woman with late-onset progressive weakness affecting proximal limb muscles. Muscle biopsy revealed a vacuolar myopathy with accumulation of amylopectin-like polysaccharide resembling the polyglucosan found in type IV glycogenosis and adult-onset polyglucosan body disease. A

An adult case of Andersen's disease--Type IV glycogenosis. A clinical, histochemical, ultrastructural and biochemical study.

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Prijava / prijava

A middle-aged man presented with a thirty-year history of progressive, asymmetrical limb-girdle weakness. The muscle biopsy revealed a vacuolar myopathy. The vacuoles which did not disrupt the fibre outline, lay in a subsarcolemmal position. They were PAS-positive and the material was partially

A case of congenital glycogen storage disease type IV with a novel GBE1 mutation.

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Prijava / prijava

Glycogen storage disease type IV (Andersen disease) is a rare metabolic disorder characterized by deficient glycogen branching enzyme activity resulting in abnormal, amylopectin-like glycogen deposition in multiple organs. This article reports on an infant with the congenital neuromuscular subtype

Polysaccharide storage myopathy--case report and literature review.

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Prijava / prijava

Polysaccharide myopathy is a rare form of storage muscular disorder. The clinical picture of this particular form of myopathy is unspecific. We report a 62-year-old woman with late-onset progressive weakness and wasting, affecting proximal muscles of the four limbs and the girdles. No myalgia,

A novel GBE1 gene variant in a child with glycogen storage disease type IV.

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Prijava / prijava

Glycogen storage disease type IV is an autosomal recessive disorder of carbohydrates caused by deficiency of amylo-1-4-glycanoglycosyltransferase, which leads to accumulation of amylopectin-like polysaccharides in tissues including liver, heart and neuromuscular system. More than 40 different

Adult Polyglucosan Body Disease (APBD): Anaplerotic diet therapy (Triheptanoin) and demonstration of defective methylation pathways.

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Prijava / prijava

APBD is a rare disorder most often affecting adults of Ashkenazi Jewish origin due to partial deficiency of the glycogen brancher enzyme (GBE). It is characterized by progressive involvement of both the central and peripheral nervous systems and deposition of amylopectin-like polyglucosan bodies.

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