Evaluation of133Xe clearance curves in the study of lingual blood flow in dogs

A. Fazekas, E. Pósch, L. Hársing

Research output: Contribution to journalArticle

Abstract

Lingual blood flow was studied in dogs by the133Xe clearance technique under control conditions, during epinephrine infusion and in response to the combined treatment with Regitin and epinephrine. The composite washout curves recorded during control conditions could be resolved into three monoexponential components. It is suggested that the steep initial slope (component I) is caused by the fraction of blood that perfuses the A-V anastomoses of the tongue. Components II and III appear to indicate the perfusion rate of lingual mucosa and musculature, respectively. The disappearance of component I due to the effect of epinephrine infusion might indicate the closure of arterio-venous anastomoses containing alpha receptors. Regitin pretreatment could prevent the closure of the arterio-venous anastomoses elicited by epinephrine infusion. The beta receptor stimulating activity of epinephrine might account for the augmentation of blood flow to lingual musculature.

Original languageEnglish
Pages (from-to)271-278
Number of pages8
JournalResearch In Experimental Medicine
Volume175
Issue number3
DOIs
Publication statusPublished - Oct 1 1979

Keywords

  • Epinephrine effects in the tongue
  • Intralingual blood flow distribution
  • Tongue
  • Xe clearance technique

ASJC Scopus subject areas

  • Medicine(all)

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