6533b833fe1ef96bd129c3d9

RESEARCH PRODUCT

Adult polyglucosan body myopathy.

Yoon S. ShinHans H. GoebelTadaaki YokotaP HallerA SchulzT VoitJoseph AlroyFilippo Gullotta

subject

MaleAntigenicityPathologymedicine.medical_specialtyMolecular Sequence DataCarbohydratesPathology and Forensic MedicineCellular and Molecular NeuroscienceUbiquitinMuscular DiseasesPolysaccharidesLectinsmedicineHumansSymptom onsetMuscle fibreMyopathyLafora bodyInclusion BodiesbiologyMusclesLectinGeneral MedicineHypertrophyMiddle AgedMitochondria MuscleMicroscopy ElectronNeurologyBiochemistryCarbohydrate Sequencebiology.proteinFemaleNeurology (clinical)medicine.symptomAtrophyCorpora amylacea

description

This report describes a sporadic late-onset myopathy in two unrelated adults which was marked by polyglucosan inclusions surrounded by abnormally structured mitochondria, the latter finding a localized, possibly reactive phenomenon. The polyglucosan material was characterized by a battery of histochemical and enzyme histochemical techniques; revealed common antigenicity with Lafora bodies, corpora amylacea and muscle fiber inclusions in types IV and VII glycogenoses; and contained ubiquitin. Additional lectin histochemical and associated digestion preparations disclosed the presence of alpha-glycosyl residues as apparently the sole carbohydrate component in polyglucosan bodies while the above mentioned common antigenicity with Lafora bodies and other inclusions suggests an additional, so far unidentified, protein component.

10.1097/00005072-199201000-00004https://pubmed.ncbi.nlm.nih.gov/1311021