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Guanosine diphosphate exerts a lower effect on superoxide release from mitochondrial matrix in the brains of uncoupling protein-2 knockout mice: New evidence for a putative novel function of uncoupling proteins as superoxide anion transporters
Stockholms universitet, Naturvetenskapliga fakulteten, Wenner-Grens institut.ORCID-id: 0000-0002-2915-6450
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2012 (engelsk)Inngår i: Biochemical and Biophysical Research Communications - BBRC, ISSN 0006-291X, E-ISSN 1090-2104, Vol. 428, nr 2, s. 234-238Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

In this report, we show new experimental evidence that, in mouse brain mitochondria, uncoupling protein-2 (UCP2) can be involved in superoxide (O-2(center dot-)) removal from the mitochondrial matrix. We found that the effect of guanosine 5'-diphosphate (GDP) on the rate of reactive oxygen species (ROS) release from brain mitochondria of UCP2 knockout mice was less Pronounced compared to the wild type animals. This putative novel UCP2 activity, evaluated by the use of UCP2-knockout transgenic animals, along with the known antioxidant defence systems, may provide additional protection from ROS in brain mitochondria.

sted, utgiver, år, opplag, sider
2012. Vol. 428, nr 2, s. 234-238
Emneord [en]
Brain mitochondria, Uncoupling protein-2, Reactive oxygen species, Superoxide, Antioxidant defence
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Identifikatorer
URN: urn:nbn:se:su:diva-87134DOI: 10.1016/j.bbrc.2012.10.025ISI: 000312431900006OAI: oai:DiVA.org:su-87134DiVA, id: diva2:601332
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AuthorCount:6;

Tilgjengelig fra: 2013-01-29 Laget: 2013-01-28 Sist oppdatert: 2022-02-24bibliografisk kontrollert

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Shabalina, Irina

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