RCIN and OZwRCIN projects

Object

Title: Effects of ischemia and exogenous fatty acids on the energy metabolism in brain mitochondria

Publisher:

PWN

Place of publishing:

Warszawa

Type of object:

Czasopismo/Artykuł

Abstract:

The following effects of 5-min postdecaptivc ischemia on the metabolic propertiesof guinea pig brain mitochondria have been observed: 1) remarkable inhibition of mitochondria respiratory activity in state 3; 2) oxidative phosphorylation uncoupling togethcr with a decrease in ADP/O ratio and RC index; 3) increase in the Mg++-stimulated ATPase with a simultaneous decrease of ATPase activity dependent on DNP. A twofold increase in the free fatty acids content ofthese mitochondria has been noticed, and the effect of exogenous olcate on the metabolic pro-perties of brain mitochondria has been shown to be similar to that on liver mitochondria. Oleate inhibits respiratory activity of brain mitochondria, uncouplcs oxidative phosphorylation, stimulates ATPase activity dependent on Mg + + and at the same time inhibits ATPase induced by DNP. It also inhibits ATP-Pi exchange and produces swelling of brain mitochondria. The obtained re-sults suggested that free fatty acids liberated in the brain during ischemia may —through their inhibitory activity on energy metabolism of mitochondria — become one of the factors of the development of irreversible brain damages in ischemia.

Relation:

Bulletin de l'Academie Polonaise des Sciences. Serie des Sciences Biologiques

Volume:

20

Issue:

8

Start page:

599

End page:

606

Detailed Resource Type:

Artykuł

Format:

application/pdf

Resource Identifier:

oai:rcin.org.pl:79292

Language:

eng

Language of abstract:

eng

Rights:

Licencja Creative Commons Uznanie autorstwa 4.0

Terms of use:

- ; Zasób chroniony prawem autorskim. [CC BY 4.0 Międzynarodowe] Korzystanie dozwolone zgodnie z licencją Creative Commons Uznanie autorstwa 4.0, której pełne postanowienia dostępne są pod adresem:

Copyright holder:

Strosznajder Joanna

Digitizing institution:

Instytut Medycyny Doświadczalnej i Klinicznej im. M. Mossakowskiego Polskiej Akademii Nauk

Original in:

Biblioteka Instytutu Medycyny Doświadczalnej i Klinicznej im. M. Mossakowskiego PAN

Projects co-financed by:

Program Operacyjny Polska Cyfrowa, lata 2014-2020, Działanie 2.3 : Cyfrowa dostępność i użyteczność sektora publicznego; środki z Europejskiego Funduszu Rozwoju Regionalnego oraz współfinansowania krajowego z budżetu państwa

Access:

Otwarty

Object collections:

Last modified:

Mar 24, 2022

In our library since:

Aug 27, 2019

Number of object content downloads / hits:

58

All available object's versions:

https://rcin.org.pl/publication/103525

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