| Literature DB >> 11860180 |
Dalia M Kopustinskiene1, Jovita Jovaisiene, Julius Liobikas, Adolfas Toleikis.
Abstract
We investigated the effects of K(ATP) channel openers diazoxide and pinacidil on the respiration rate and membrane potential (deltapsi) of rat heart mitochondria, oxidizing pyruvate and malate. Diazoxide and pinacidil (58.8-1348.3 microM) increased the V2 (-ADP) respiration rate accordingly by 13-208% and 30-273% and decreased the deltapsi by 2-17% and 6-55%. These effects were also similar in the respiration medium without K+. Moreover, carboxyatractyloside completely abolished diazoxide- and pinacidil-induced uncoupling, indicating a role for the mitochondrial adenine nucleotide translocase in this process.Entities:
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Year: 2002 PMID: 11860180 DOI: 10.1023/a:1013870704002
Source DB: PubMed Journal: J Bioenerg Biomembr ISSN: 0145-479X Impact factor: 2.945