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Advancements in Free-Radical Pathologies and an Important Treatment Solution with a Free-Radical Inhibitor

Unsaturated carbon-carbon double bonds particularly at exposed end groups of nonsolid fluids are susceptible to free-radical covalent bonding on one carbon atom creating a new free radical on the opposite carbon atom. Subsequent reactive secondary sequence free-radical polymerization can then contin...

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Autores principales: Petersen, RC, Reddy, MS, Liu, P-R
Formato: Online Artículo Texto
Lenguaje:English
Publicado: 2018
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6034992/
https://www.ncbi.nlm.nih.gov/pubmed/29984367
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author Petersen, RC
Reddy, MS
Liu, P-R
author_facet Petersen, RC
Reddy, MS
Liu, P-R
author_sort Petersen, RC
collection PubMed
description Unsaturated carbon-carbon double bonds particularly at exposed end groups of nonsolid fluids are susceptible to free-radical covalent bonding on one carbon atom creating a new free radical on the opposite carbon atom. Subsequent reactive secondary sequence free-radical polymerization can then continue across extensive carbon-carbon double bonds to form progressively larger molecules with ever-increasing viscosity and eventually produce solids. In a fluid solution when carbon-carbon double bonds are replaced by carbon-carbon single bonds to decrease fluidity, increasing molecular organization can interfere with molecular oxygen (O(2)) diffusion. During normal eukaryote cellular energy synthesis O(2) is required by mitochondria to combine with electrons from the electron transport chain and hydrogen cations from the proton gradient to form water. When O(2) is absent during periods of irregular hypoxia in mitochondrial energy synthesis, the generation of excess electrons can develop free radicals or excess protons can produce acid. Free radicals formed by limited O(2) can damage lipids and proteins and greatly increase molecular sizes in growing vicious cycles to reduce oxygen availability even more for mitochondria during energy synthesis. Further, at adequate free-radical concentrations a reactive crosslinking unsaturated aldehyde lipid breakdown product can significantly support free-radical polymerization of lipid oils into rubbery gel-like solids and eventually even produce a crystalline lipid peroxidation with the double bond of O(2). Most importantly, free-radical inhibitor hydroquinone intended for medical treatments in much pathology such as cancer, atherosclerosis, diabetes, infection/inflammation and also ageing has proven extremely effective in sequestering free radicals to prevent chain-growth reactive secondary sequence polymerization.
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spelling pubmed-60349922018-07-06 Advancements in Free-Radical Pathologies and an Important Treatment Solution with a Free-Radical Inhibitor Petersen, RC Reddy, MS Liu, P-R SF J Biotechnol Biomed Eng Article Unsaturated carbon-carbon double bonds particularly at exposed end groups of nonsolid fluids are susceptible to free-radical covalent bonding on one carbon atom creating a new free radical on the opposite carbon atom. Subsequent reactive secondary sequence free-radical polymerization can then continue across extensive carbon-carbon double bonds to form progressively larger molecules with ever-increasing viscosity and eventually produce solids. In a fluid solution when carbon-carbon double bonds are replaced by carbon-carbon single bonds to decrease fluidity, increasing molecular organization can interfere with molecular oxygen (O(2)) diffusion. During normal eukaryote cellular energy synthesis O(2) is required by mitochondria to combine with electrons from the electron transport chain and hydrogen cations from the proton gradient to form water. When O(2) is absent during periods of irregular hypoxia in mitochondrial energy synthesis, the generation of excess electrons can develop free radicals or excess protons can produce acid. Free radicals formed by limited O(2) can damage lipids and proteins and greatly increase molecular sizes in growing vicious cycles to reduce oxygen availability even more for mitochondria during energy synthesis. Further, at adequate free-radical concentrations a reactive crosslinking unsaturated aldehyde lipid breakdown product can significantly support free-radical polymerization of lipid oils into rubbery gel-like solids and eventually even produce a crystalline lipid peroxidation with the double bond of O(2). Most importantly, free-radical inhibitor hydroquinone intended for medical treatments in much pathology such as cancer, atherosclerosis, diabetes, infection/inflammation and also ageing has proven extremely effective in sequestering free radicals to prevent chain-growth reactive secondary sequence polymerization. 2018-02-21 2018 /pmc/articles/PMC6034992/ /pubmed/29984367 Text en http://creativecommons.org/licenses/by/4.0/ This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Article
Petersen, RC
Reddy, MS
Liu, P-R
Advancements in Free-Radical Pathologies and an Important Treatment Solution with a Free-Radical Inhibitor
title Advancements in Free-Radical Pathologies and an Important Treatment Solution with a Free-Radical Inhibitor
title_full Advancements in Free-Radical Pathologies and an Important Treatment Solution with a Free-Radical Inhibitor
title_fullStr Advancements in Free-Radical Pathologies and an Important Treatment Solution with a Free-Radical Inhibitor
title_full_unstemmed Advancements in Free-Radical Pathologies and an Important Treatment Solution with a Free-Radical Inhibitor
title_short Advancements in Free-Radical Pathologies and an Important Treatment Solution with a Free-Radical Inhibitor
title_sort advancements in free-radical pathologies and an important treatment solution with a free-radical inhibitor
topic Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC6034992/
https://www.ncbi.nlm.nih.gov/pubmed/29984367
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