Published in: 14th Conference on Biophysical Chemistry
COI code: CBC15_042
Paper Language: English
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Authors Generation of reactive oxygen species by alpha-synuclein fibrils and oligomersToktam Zohoorian Abootorabi - Institute of Biochemistry & Biophysics, University of Tehran, Tehran, Iran
Ali Akbar Saboury - Institute of Biochemistry & Biophysics, University of Tehran, Tehran, Iran
Ali Akbar Meratan - Department of Biological Sciences, Institute for Advanced Studies in Basic Sciences, Zanjan, Iran
Abstract:The formation of toxic oligomers and fibrils is the hallmark of Parkinson‟s disease (PD) pathology. In PD, the procedure of aggregation of distinct protein such as alpha-synuclein from monomers to oligomeric intermediates and amyloid fibrils is accounted as the disease-causing agent of toxic mechanism. Mitochondria are a major source of ROS (reactive oxygen species) within most mammalian cells. This ROS production contributes to mitochondrial damage in a range of pathologies and is also important in redox signalling from the organelle to the rest of the cell. Furthermore, the interaction and internalization of toxic aggregated alpha-synuclein to mitochondrial membrane can cause major impairments in this organel. Subsequently, mitochondrial dysfunction may lead to increased oxidative stress and consequent cytotoxicity. Therefore, the present study was undertaken to compare and contrast the percentage of ROS production as a consequences of the interaction of alpha-synuclein amyloid aggregates, produced in the absence and presence of dopamine, with rat brain mitochondria. The ROS production was evaluated by 2,7-dichlorofluorescein diacetate (DCFH-DA), which readily diffuses into cells. Our results obviously demonstrated both fibrils and oligomers of alpha-synuclein induce ROS generation.
Keywords:Parkinson disease, Alpha-synuclein, Mitochondria, Free radicals
COI code: CBC15_042
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Zohoorian Abootorabi, Toktam; Ali Akbar Saboury & Ali Akbar Meratan, 2018, Generation of reactive oxygen species by alpha-synuclein fibrils and oligomers, 14th Conference on Biophysical Chemistry, گرگان, دانشگاه آزاد اسلامي واحد گرگان -انجمن بيوشيمي فيزيك ايران, https://www.civilica.com/Paper-CBC15-CBC15_042.htmlInside the text, wherever referred to or an achievement of this article is mentioned, after mentioning the article, inside the parental, the following specifications are written.
First Time: (Zohoorian Abootorabi, Toktam; Ali Akbar Saboury & Ali Akbar Meratan, 2018)
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Type: state university
Paper No.: 55951
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