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Novel mitochondrial cationic uncoupler C(4)R1 is an effective treatment for combating obesity in mice
Stockholm University, Faculty of Science, Department of Molecular Biosciences, The Wenner-Gren Institute. Lomonosov Moscow State University, Russia.
Stockholm University, Faculty of Science, Department of Molecular Biosciences, The Wenner-Gren Institute. Lomonosov Moscow State University, Russia.
Number of Authors: 2
2015 (English)In: Biochemistry (Moscow), ISSN 0006-2979, E-ISSN 1608-3040, Vol. 80, no 5, 620-628 p.Article in journal (Refereed) Published
Abstract [en]

Obesity is associated with premature mortality, impaired quality of life, and large healthcare costs. However, treatment options remain quite limited. Here we studied potential anti-obesity effects of a novel cationic mitochondrial uncoupler, C(4)R1 (derivative of rhodamine 19) in C57Bl/6 mice. Obesity was induced by long-term (eight weeks) high fat diet feeding at thermoneutrality. The treated group of mice received consecutively two doses of C(4)R1 in drinking water (30 and 12-14 mu mol/kg daily) during 30 days. Effects of C(4)R1 were dose-dependent. After six days of C(4)R1 treatment at dose 30 mu mol/kg daily, food intake was reduced by 68%, body weight by 19%, and fat mass by 21%. Body weight decrease was explained partly by reduced food intake and partly by increased metabolism, likely resulting from uncoupling. Body fat reduction upon C(4)R1 treatment was associated with improved lipid utilization estimated from decrease in respiratory quotient to the minimal level (0.7). Interestingly, the classical uncoupler 2,4-dinitrophenol at similar dose (27 mu mol/kg daily) did not have any effect. Our results are relevant to the search for substances causing mild uncoupling of mitochondria that could be a promising therapeutic strategy to treat obesity.

Place, publisher, year, edition, pages
2015. Vol. 80, no 5, 620-628 p.
Keyword [en]
cationic mitochondrial uncoupler, 2, 4-dinitrophenol, obesity, resting metabolic rate, energy expenditure
National Category
Biological Sciences
Identifiers
URN: urn:nbn:se:su:diva-117783DOI: 10.1134/S0006297915050156ISI: 000354190900015OAI: oai:DiVA.org:su-117783DiVA: diva2:816196
Available from: 2015-06-02 Created: 2015-06-01 Last updated: 2017-12-04Bibliographically approved

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Kalinovich, Anastasia V.Shabalina, Irina G.
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