Mathematical model indicates nonlinearity of noradrenaline effect on rat renal artery

Title:

Mathematical model indicates nonlinearity of noradrenaline effect on rat renal artery

Creator:

Ďurišová, M., Ladislav Dedík, Viera Kristová, and Vojtko, R.

Identifier:

https://cdk.lib.cas.cz/client/handle/uuid:21d4fe1a-9a95-4f4e-aded-c536613e4cae
uuid:21d4fe1a-9a95-4f4e-aded-c536613e4cae
issn:0862-8408

Subject:

Experimentální medicína, fyziologie, digitální zpracování obrazu, výpočetní metody, physiology, digital image processing, computational methods, sensitivity parameter, mean effect time, effect regression, 14, and 616-092

Type:

article, články, model:article, and TEXT

Format:

print, bez média, and svazek

Description:

The aim of this work is to present the efficacy of a previously introduced computational procedure, developed for evaluation of vascular responsiveness. On this reason, as an example a common study of noradrenaline (NA) effect on a rat renal artery under in vitro conditions was arbitrarily selected. The response of the arterial segment to NA doses (0.1-10 μg) was digitally recorded on a PC and employed to develop mathematical model of NA effect. Using the model, the following NA effect variables were determined: the vessel sensitivity parameter, mean effect time and rate constant, respectively, characterizing the effect intensity, duration, and regression and also classic response variables: the maximal effect and time of the maximal effect. The two-way analysis of variance followed by Bonferroni’s test revealed a significant influence of the increasing NA dose on the vessel sensitivity parameter and mean effect time. These findings indicated nonlinearity of processes underlying NA effect on the rat renal artery over the given range of NA doses. The procedure exemplified has the potential for use as an effective adjunct to routine studies of vascular responsiveness as it enables the extraction of meaningful information which cannot by obtained by common manual evaluation procedures., M. Ďurišová, L. Dedík, V. Kristová, R. Vojtko., and Obsahuje bibliografii a bibliografické odkazy

Language:

English

Rights:

http://creativecommons.org/licenses/by-nc-sa/4.0/
policy:public

Source:

Physiological research | 2008 Volume:57 | Number:5

Harvested from:

CDK

Metadata only:

false