Monitoring of Permeability Transition Pore Openings in Mitochondria of Cultured Neurons

2017 ◽  
pp. 239-248 ◽  
Author(s):  
Tatiana Brustovetsky ◽  
Nickolay Brustovetsky
Keyword(s):  
Permeability Transition Pore ◽  
Permeability Transition ◽  
Cultured Neurons

Hydrogen Sulfide Inhibits Calcium-Induced Mitohondrial Permeability Transition Pore Opening in the Heart of Adult and Old Rats

2012 ◽  
Vol 3 (2) ◽  
pp. 135-147 ◽  
Author(s):  
Nataliya A. Strutynska ◽  
Olena M. Semenykhina ◽  
Snizhana V. Chorna ◽  
Galyna L. Vavilova ◽  
Vadim F. Sagach
Keyword(s):  
Hydrogen Sulfide ◽  
Permeability Transition Pore ◽  
Permeability Transition ◽  
Permeability Transition Pore Opening ◽  
Pore Opening ◽  
Old Rats

Cardioprotective and Vasoprotective Effects of Corticotropin-Releasing Hormone and Urocortins: Receptors and Signaling

2021 ◽  
pp. 107424842098530
Author(s):  
Sergey V. Popov ◽  
Ekaterina S. Prokudina ◽  
Alexander V. Mukhomedzyanov ◽  
Natalia V. Naryzhnaya ◽  
Huijie Ma ◽  
...  
Keyword(s):  
Mitochondrial Permeability Transition ◽  
Vascular Endothelial Cells ◽  
Isolated Heart ◽  
Cardiac Contractility ◽  
Permeability Transition Pore ◽  
Chronic Administration ◽  
Permeability Transition ◽  
Janus Kinase ◽  
Corticotropin Releasing Hormone ◽  
Releasing Hormone

Despite the recent progress in research and therapy, cardiovascular diseases are still the most common cause of death worldwide, thus new approaches are still needed. The aim of this review is to highlight the cardioprotective potential of urocortins and corticotropin-releasing hormone (CRH) and their signaling. It has been documented that urocortins and CRH reduce ischemic and reperfusion (I/R) injury, prevent reperfusion ventricular tachycardia and fibrillation, and improve cardiac contractility during reperfusion. Urocortin-induced increase in cardiac tolerance to I/R depends mainly on the activation of corticotropin-releasing hormone receptor-2 (CRHR2) and its downstream pathways including tyrosine kinase Src, protein kinase A and C (PKA, PKCε) and extracellular signal-regulated kinase (ERK1/2). It was discussed the possibility of the involvement of interleukin-6, Janus kinase-2 and signal transducer and activator of transcription 3 (STAT3) and microRNAs in the cardioprotective effect of urocortins. Additionally, phospholipase-A2 inhibition, mitochondrial permeability transition pore (MPT-pore) blockade and suppression of apoptosis are involved in urocortin-elicited cardioprotection. Chronic administration of urocortin-2 prevents the development of postinfarction cardiac remodeling. Urocortin possesses vasoprotective and vasodilator effect; the former is mediated by PKC activation and prevents an impairment of endothelium-dependent coronary vasodilation after I/R in the isolated heart, while the latter includes both cAMP and cGMP signaling and its downstream targets. As CRHR2 is expressed by both cardiomyocytes and vascular endothelial cells. Urocortins mediate both endothelium-dependent and -independent relaxation of coronary arteries.

Protective effect ofAloe veragel on the permeability transition pore in the inner membrane of rat liver mitochondriain vitro

2014 ◽  
Vol 37 (4) ◽  
pp. 415-419 ◽  
Author(s):  
Seun Funmilola Akomolafe ◽  
John Oludele Olanlokun ◽  
Adeolu Jonathan Adesina ◽  
Olabode Olufunso Olorunsogo
Keyword(s):  
Protective Effect ◽  
Rat Liver ◽  
Permeability Transition Pore ◽  
Permeability Transition ◽  
Inner Membrane
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