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Implementation of periodic acid-thiosemicarbazide-silver proteinate staining for ultrastructural assessment of muscle glycogen utilization during exercise
Gymnastik- och idrottshögskolan, GIH, Institutionen för idrotts- och hälsovetenskap.
Gymnastik- och idrottshögskolan, GIH, Institutionen för idrotts- och hälsovetenskap, Björn Ekbloms forskningsgrupp.ORCID-id: 0000-0002-4030-5437
1985 (Engelska)Ingår i: Cell and Tissue Research, ISSN 0302-766X, E-ISSN 1432-0878, nr 242, s. 229-232Artikel i tidskrift (Refereegranskat) Published
Abstract [en]

Distribution of glycogen particles in semithin and ultrathin sections of biopsy samples from human muscles subjected to either short- or long-term running were investigated using PAS and Periodic Acid-ThioSemiCarbazide-Silver Proteinate (PA-TSC-SP) staining methods. Glycogen particles were predominantly found immediately under the sarcolemma or aligned along the myofibrillar I-band. After long-term exhaustive exercise type-1 fibers with a few or no glycogen particles in the core of the fibers were frequently observed. The subsarcolemmal glycogen stores of these "depleted" type-1 fibers were about three times as large as after exhaustive short-time exercise. Another indication of utilization of subsarcolemmal glycogen stores during anaerobic exercise was that many particles displayed a pale, rudimentary shape. This observation suggests fragmental metabolization of glycogen. Thus, depending on type of exercise and type of fiber differential and sequential glycogen utilization patterns can be observed

Ort, förlag, år, upplaga, sidor
1985. nr 242, s. 229-232
Nationell ämneskategori
Fysiologi
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URN: urn:nbn:se:gih:diva-392OAI: oai:DiVA.org:gih-392DiVA, id: diva2:756
Tillgänglig från: 2008-06-04 Skapad: 2008-06-04 Senast uppdaterad: 2018-01-11Bibliografiskt granskad

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