نتایج جستجو برای: mitochondrial membrane potential

تعداد نتایج: 1501716  

2014
Haining Li Guisheng Chen Wanrui Ma Ping-An Andy Li

The objectives of the study were to explore the mechanism of rotenone-induced cell damage and to examine the protective effects of water-soluble Coenzyme Q10 (CoQ10) on the toxic effects of rotenone. Murine hippocampal HT22 cells were cultured with mitochondrial complex I inhibitor rotenone. Water-soluble CoQ10 was added to the culture media 3 h prior to the rotenone incubation. Cell viability ...

Journal: :The Journal of biological chemistry 2002
Anastasios E Damdimopoulos Antonio Miranda-Vizuete Markku Pelto-Huikko Jan-Ake Gustafsson Giannis Spyrou

Thioredoxins (Trx) are a class of small multifunctional redox-active proteins found in all organisms. Recently, we reported the cloning of a mitochondrial thioredoxin, Trx2, from rat heart. To investigate the biological role of Trx2 we have isolated the human homologue, hTrx2, and generated HEK-293 cells overexpressing Trx2 (HEK-Trx2). Here, we show that HEK-Trx2 cells are more resistant toward...

Journal: :American journal of physiology. Heart and circulatory physiology 1998
T J Delcamp C Dales L Ralenkotter P S Cole R W Hadley

The aim of this study was to investigate the role of mitochondrial ionic homeostasis in promoting reoxygenation-induced hypercontracture in cardiac muscle. Mitochondrial membrane potential and intramitochondrial Ca2+ concentration ([Ca2+]) were measured using confocal imaging in guinea pig ventricular myocytes exposed to anoxia and reoxygenation. Anoxia produced a variable, but often profound, ...

Journal: :Proceedings of the National Academy of Sciences of the United States of America 2013
Shengjie Feng Hongyu Li Yilin Tai Junbo Huang Yujuan Su Joel Abramowitz Michael X Zhu Lutz Birnbaumer Yizheng Wang

Mitochondrial Ca(2+) homeostasis is fundamental to regulation of mitochondrial membrane potential, ATP production, and cellular Ca(2+) homeostasis. It has been known for decades that isolated mitochondria can take up Ca(2+) from the extramitochondrial solution, but the molecular identity of the Ca(2+) channels involved in this action is largely unknown. Here, we show that a fraction of canonica...

Journal: :Human molecular genetics 2012
Rebecca Noack Svenja Frede Philipp Albrecht Nadine Henke Annika Pfeiffer Katrin Knoll Thomas Dehmel Gerd Meyer Zu Hörste Mark Stettner Bernd C Kieseier Holger Summer Stefan Golz Andrzej Kochanski Martina Wiedau-Pazos Susanne Arnold Jan Lewerenz Axel Methner

Mutations in GDAP1 lead to recessively or dominantly inherited peripheral neuropathies (Charcot-Marie-Tooth disease, CMT), indicating that GDAP1 is essential for the viability of cells in the peripheral nervous system. GDAP1 contains domains characteristic of glutathione-S-transferases (GSTs), is located in the outer mitochondrial membrane and induces fragmentation of mitochondria. We found GDA...

2012
Peter Sobolewski Judith Kandel David M. Eckmann

OBJECTIVE Gas microembolism remains a serious risk associated with surgical procedures and decompression. Despite this, the signaling consequences of air bubbles in the vasculature are poorly understood and there is a lack of pharmacological therapies available. Here, we investigate the mitochondrial consequences of air bubble contact with endothelial cells. METHODS AND RESULTS Human umbilica...

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