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ISSN 2522-9028 (Print)
ISSN 2522-9036 (Online)
DOI: https://doi.org/10.15407/fz

Fiziologichnyi Zhurnal

is a scientific journal issued by the

Bogomoletz Institute of Physiology
National Academy of Sciences of Ukraine

Editor-in-chief: V.F. Sagach

The journal was founded in 1955 as
1955 – 1977 "Fiziolohichnyi zhurnal" (ISSN 0015 – 3311)
1978 – 1993 "Fiziologicheskii zhurnal" (ISSN 0201 – 8489)
1994 – 2016 "Fiziolohichnyi zhurnal" (ISSN 0201 – 8489)
2017 – "Fiziolohichnyi zhurnal" (ISSN 2522-9028)

Fiziol. Zh. 2015; 61(4): 35-40

EFFECT OF PROPARGYLGLYCINE UPON CARDIOHEMODYNAMICS IN OLD RATS

K.O. Drachuk, N.A. Dorofeyeva, A.V. Kotsjuruba, V.F. Sagach

    O.O. Bogomoletz Institute of physiology NAS of Ukraine, Kyiv
DOI: https://doi.org/10.15407/fz61.04.035


Abstract

Aging increases the risk of cardiovascular diseases. The objective of this study was to show the effect of propargylglycine (PPG) upon cardiohemodynamics in old rats. We used pressure-volume (PV) conductance catheter system (Millar Instruments, USA) in order to evaluate systolic and diastolic function in vivo. It has been shown that introducted PPG (11,31 mg/kg) decrises both arterial stiffness (by 1,5 times) and end-diastolic stiffness (by 2,1 times) in old rats. Using PPG in heart mitochondria resulted in increasing levels of H2S (by 112%), NO2 - (by 162%) and in growing activity of cNOS (by 3 times). Additionally, PPG decreased the mitochondrial pools of the uric acid, the marker of the superoxide (*O2 - ) formation and of the ATP degradation. These results suggest that PPG activates alternative ways of H2S synthesis, stimulates the NO and H2S synthesis and suppresses the ATP degradation and *O- formation. These actions of PPG improve arterial stiffness and end-diastolic stiffness.

Keywords: aging; cardiohemodynamic; hydrogen sulfide; propargylglycine; oxidative stress; uric acid

Full text: (PDF, in Ukrainian)

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