Nom du corpus

Corpus Systématique Animale

Titre du document

Comparative rheology of nucleated and non-nucleated red blood cells

Lien vers le document
Éditeur
Springer (journals)
Langue(s) du document
Anglais
Type de document
Research-article
Mots-clés d'auteur
  • Nucleated erythrocytes
  • Blood rheology
  • Viscosity
  • Hematocrit
  • Capillary circulation
Nom du fichier dans la ressource
Mammiferes_v2b_02628, Oiseaux_v2b_02831
Auteur(s)
  • P. Gaehtgens 1
  • G. Will 1
  • F. Schmidt 1
Affiliation(s)
  • 1) Institut für Normale und Pathologische Physiologie, Universität zu Köln, Robert-Koch-Str. 39, D-5000, Köln 41, Germany
Résumé

The flow properties of nucleated avian (duck) red cell suspensions were determined in narrow glass capillaries (internal diameter 5–11 ?m) perfused at constant pressure. Measurements were carried out of cellular and suspending fluid flow velocity and dynamic (tube) hematocrit. Comparison with previous measurements on human erythrocyte suspensions showed that the dynamic hematocrit reduction (Fahraeus effect) of avian cell suspensions was significantly more sensitive to changes of hematocrit than observed on the human cells. It was in addition found that the Fahraeus effect is the dominating phenomenon determining the viscosity of the nucleated cell suspensions, in contrast to suspensions of non-nucleated human red cells. Furthermore, the apparent viscosity of the nucleated cell suspensions is significantly higher than that of human blood at equal capillary diameter and tube hematocrit. In the living capillary bed of birds, the unfavourable rheological properties of the nucleated red cells could be compensated for by a low capillary hematocrit and/or a higher capillary density compared to mammalian species.

Catégories Science-Metrix
  • 1 - health sciences
  • 2 - biomedical research
  • 3 - physiology
Catégories INIST
  • 1 - sciences appliquees, technologies et medecines
  • 2 - sciences biologiques et medicales
  • 3 - sciences biologiques fondamentales et appliquees. psychologie
  • 4 - phytopathologie. zoologie agricole. protection des cultures et des forets
Catégories Scopus
  • 1 - Health Sciences ; 2 - Medicine ; 3 - Physiology (medical)
  • 1 - Life Sciences ; 2 - Biochemistry, Genetics and Molecular Biology ; 3 - Clinical Biochemistry
  • 1 - Life Sciences ; 2 - Biochemistry, Genetics and Molecular Biology ; 3 - Physiology
Catégories WoS
  • 1 - science ; 2 - physiology
Identifiant ISTEX
EBE996409CCA7618A1DC366702D66E08C5AF28A2
Revue

Pflügers Archiv

Année de publication
1981
Présence de XML structuré
Non
Version PDF
1.3
Score qualité du texte
6.839
Sous-corpus
  • Mammiferes
  • Oiseaux
Type de publication
Journal
ark:/67375/1BB-JXZFTF03-D
Powered by Lodex 9.3.8