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Title: Influence of leukotrien biosynthesis inhibition on heart electrical activity in patients with stable coronary artery disease

Author:

Sokołowska, Barbara

Date:

2010

Type:

Praca doktorska

Abstract:

A high expression of leukotrienes receptors (CysLT2) has been detected in Purkinje fibers of the heart conduction system and in cardiomyocytes. The hereby research is the first attempt to evaluate the action of leukotrienes (LTs) on the heart conduction system. We investigated the effect of pharmacological inhibition of 5-lipooxygenase (the enzyme of leukotriene synthesis pathway) on LTs production and the cardiac electrical activity in patients with stable coronary heart disease subject to elective coronary angiography with possible percutaneous angioplasty and in patients with permanent atrial fibrillation. In this trial zileuton (5-lipoxygenase inhibitor) was applied and ECG Holter recording was performed with consecutive measurements of urine LTE4 concentrations. It has been shown that in patients with stable coronary heart disease who have coronary angiography or coronary angiography with angioplasty with stent implantation performed, there is a transient activation of the 5-lipooxygenase pathway and increased synthesis of cysteinyl lukotrienes. Pharmacological inhibition of leukotriene biosynthesis in patients with stable coronary heart disease subject to intracoronary interventions or patients with permanent atrial fibrillation, causes: reduction of the mean 24-hour heart rate, increase in parameters of heart rhythm variability (in patients with sinus rhythm), and an improvement in the conduction of electrical impulses in the conduction system during intracoronary procedures. Inhibition of 5-lipooxygenase does not affect the incidence of arrhythmia, nor the degree of heart ischaemia.

Level of degree:

2 - studia doktoranckie

Degree discipline:

choroby układu krążenia

Degree grantor:

Wydział Lekarski

Promoter:

Andrzej Szczeklik

Date issued:

2010

Format:

application/pdf

Identifier:

oai:dl.cm-uj.krakow.pl:796

Call number:

ZB-112123

ControlNumberVIRTUA:

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Access rights:

nieograniczony

Location of original object:

Biblioteka Medyczna Uniwersytetu Jagiellońskiego - Collegium Medicum

Subject and keywords:

cysteinyl leukotrienes heart conduction system

Object collections:

Last modified:

Oct 7, 2019

In our library since:

Nov 21, 2012

Number of object content hits:

473

Number of object content views in PDF format

471

All available object's versions:

http://dl.cm-uj.krakow.pl:8080/publication/796

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Edition name Date
ZB-112123 Oct 7, 2019

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