2022
DOI: 10.3390/oxygen2020006
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Free Radical Properties, Source and Targets, Antioxidant Consumption and Health

Abstract: Free radicals have acquired growing importance in the fields of biology and medicine. They are produced during many different endogenous and exogenous processes. Mitochondria are the main source of endogenous reactive oxygen species (ROS) produced at cell level. The overproduction of free radicals can damage macromolecules such as nucleic acids, proteins and lipids. This leads to tissue damage in various chronic and degenerative diseases. Antioxidants play a crucial role in the body’s defense against free radi… Show more

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Cited by 286 publications
(206 citation statements)
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“…Enzymatic antioxidants such as SOD are considered the main enzymes since they eliminate ROS directly. 33 SOD is a crucial defensive enzyme that scavenges O2 anion from H2O2 and, as a result, reduces the toxicity of this radical and other free radical formed from secondary reactions. 34 Antioxidant enzymes such as SOD are hindered by nonenzymatic glycosylation and oxidation in diabetes mellitus.…”
Section: L-178mentioning
confidence: 99%
“…Enzymatic antioxidants such as SOD are considered the main enzymes since they eliminate ROS directly. 33 SOD is a crucial defensive enzyme that scavenges O2 anion from H2O2 and, as a result, reduces the toxicity of this radical and other free radical formed from secondary reactions. 34 Antioxidant enzymes such as SOD are hindered by nonenzymatic glycosylation and oxidation in diabetes mellitus.…”
Section: L-178mentioning
confidence: 99%
“…Основним і найбільш значущим механізмом небезпечної дії НЧ на живі організми є утворення АФК (О, ОН•, НО 2 , Н 2 О 2 , О 3 ) з наступним руйнуванням макромолекул (фосфоліпідів, нуклеїнових кислот і білків) [15,16] Згідно з сучасними даними, механізмом індукованої НЧ токсичності є, головним чином, окиснювальний стрес з подальшою провокацією клітинної смерті та генотоксичності. Окиснювальний стресважливий, ключовий механізм токсичності ксенобіотиків як результат дисбалансу між продукцією активних вільних радикалів і антиоксидантами в організмі [23][24][25]. Основними факторами, що призводять до окиснювального стресу, є АФК і оксиду азоту (NO).…”
Section: результати дослідження та їх обговоренняunclassified
“…For brown seaweeds (Phaeophyta) the soluble fibers are alginates, fucans, and laminarians (Peñalver et al, 2020). A plague of concern is the biological effects of natural antioxidants, encompassed in the attack against oxidative trauma that grounds aging, the release, and progress of numerous diseases such as cancer, cardiovascular accidents, inflammatory diseases, and neurodegenerative diseases (Martemucci et al, 2022). Macroalgae are available, safe, cheap, and due to their bioactive properties, with positive effects on human health have received considerable attention.…”
Section: Introductionmentioning
confidence: 99%