Linked Life Data

10971039

Source:http://linkedlifedata.com/resource/pubmed/id/10971039

Statements in which the resource exists as a subject.
PredicateObject
rdf:type
lifeskim:mentions
pubmed:issue
2-3
pubmed:dateCreated
2000-9-28
pubmed:abstractText
Capillarity, fibre types, fibre cross-sectional areas and perimeters were studied along and across the rat tibialis anterior muscle. The muscle was sectioned at three different levels (proximal, equatorial and distal) choosing five sampling fields for measurements at each level (from anterior to posterior and lateral to medial zones). Significant differences were found in the percentage of fibre types and capillarity between different fields of the same muscle section. Slow oxidative fibres were confined to the posterior muscle zone with a maximum of 3.7%. The posterior fields also had a greater percentage of fast oxidative glycolytic fibres at proximal (72.3%) and equatorial (61.3%) levels, but a lower value at the distal level (44.8%) and lower capillary density counts in total cross-section means (758 vs. 1,069 capillaries/mm(2) in equatorial and 1,035 capillaries/mm(2) at proximal levels). The uneven distribution of both fast fibre types and the different degrees of capillarisation along the muscle are statistically significant and may be due to different biomechanical performances along the rat tibialis anterior. Fibre size was significantly larger at the distal level, but no morphometric differences were found across the section of the same level. At the distal level, the mean total fibre area of fast glycolytic fibres (5,130 microm(2)) and fast oxidative glycolytic fibres (2,493 microm(2)) contrasted with values at the proximal (fast glycolytic: 4,070 microm(2), fast oxidative glycolytic: 1,970 microm(2)) and equatorial (fast glycolytic: 3,535 microm(2), fast oxidative glycolytic: 1,714 microm(2)) levels. The differences along and across the muscle show the need to design a standardised procedure for sample location when performing comparative studies of morphofunctional adaptive changes in skeletal muscle. A significant difference between individuals (animals) in all parameters was evident and should be taken into consideration when analysing the variability: the factor 'animal' should be considered in multiway ANOVAs, especially when low sample sizes are used.
pubmed:language
eng
pubmed:journal
pubmed:citationSubset
IM
pubmed:chemical
pubmed:status
MEDLINE
pubmed:issn
1422-6405
pubmed:author
pubmed:copyrightInfo
Copyright 2000 S. Karger AG, Basel
pubmed:issnType
Print
pubmed:volume
167
pubmed:owner
NLM
pubmed:authorsComplete
Y
pubmed:pagination
153-62
pubmed:dateRevised
2008-11-21
pubmed:meshHeading
pubmed:year
2000
pubmed:articleTitle
Capillarity, fibre types and fibre morphometry in different sampling sites across and along the tibialis anterior muscle of the rat.
pubmed:affiliation
Departament de Fisiologia, Facultat de Biologia, Universitat de Barcelona, Spain. torrella@bio.ub.es
pubmed:publicationType
Journal Article, Research Support, Non-U.S. Gov't