@article{
author = "Kotur-Stevuljević, Jelena and Savić, Jelena and Simić, Milena and Ivanišević, Jasmina",
year = "2023",
abstract = "Redox imbalance occurs when the factors of oxidative stress, known as prooxidants, outweigh
the mechanisms of antioxidant protection. In a healthy state, homeostatic mechanisms ensure the
balanced production of free radicals and a complete series of antioxidants responsible for their safe
removal. The generation of free radicals is a part of physiological processes in a healthy organism,
some of which act as specific signaling molecules, and their presence and activity are necessary in
these processes. In various diseases such as cancer, cardiovascular disease, diabetes, autoimmune
diseases, rheumatic diseases, systemic lupus, and skin diseases, the generation of free radicals
overwhelms the protective mechanisms, leading to the development of "oxidative stress" that damages
cells and tissues. To prevent the harmful effects of free radicals within cells, there exists a system of
enzymatic antioxidant protection composed of superoxide dismutase (SOD), glutathione peroxidase
(GSHPx), glutathione reductase (GR), glutaredoxin, reduced/oxidized glutathione (GSH/GSSG), and
thioredoxin (TRX). The examples of non-enzymatic antioxidants are: antioxidant vitamins such as A,
C and E, dihydrolypoic acid, metallothioneins, ceruloplasmin, coenzyme Q 10, urea, creatinine, etc.
Redox balance is influenced by the circadian rhythm and external factors that constitute the
"exposome", including dietary habits and lifestyle. Antioxidant supplementation has become
increasingly popular for maintaining optimal body function. However, it is important to note that some
antioxidants can exhibit prooxidant activity, emphasizing the need for controlled use. The relationship
between the redox status of the body and the action of antioxidants enables the development of
multidisciplinary research that connects biochemistry, molecular biology, nutritional science, natural
product chemistry, and clinical practice., Redoks disbalans se javlja kada činioci oksidativnog stresa – prooksidansi – nadvladaju
mehanizme antioksidativne zaštite. U stanju zdravlja, homeostatski mehanizmi obezbeđuju
uravnoteženo stvaranje slobodnih radikala i čitave serije antioksidanasa koji su zaduženi za njihovo
bezbedno uklanjanje. Stvaranje slobodnih radikala je deo fizioloških procesa u zdravom organizmu;
neki od njih su specifični signalni molekuli i u tim procesima su njihovo prisustvo i aktivnost
neophodni. U različitim bolestima kao što su kancer, kardiovaskularne bolesti, dijabetes,
autoimunske bolesti, reumatske bolesti, sistemski lupus, kožne bolesti, stvaranje slobodnih radikala
nadvladava mehanizme zaštite, pa se razvija „oksidativni stres“ koji oštećuje ćelije i tkiva. Da bi se
sprečilo štetno delovanje slobodnih radikala, u ćeliji postoji sistem enzimske antioksidativne zaštite,
koga čine: superoksid-dismutaza (SOD), glutation-peroksidaza (GSHPx), glutation-reduktaza
(GR), glutaredoksin, redukovani/oksidovani glutation (GSH/GSSG) i tioredoksin (TRX). Primeri
neenzimskih antioksidanasa su: antioksidativni vitamini kao što su A, C i E, dihidrolipoinska
kiselina, metalotioneini, ceruloplazmin, koenzim Q10, urea, kreatinin, itd. Redoks ravnoteža je pod
uticajem cirkadijalnog ritma i spoljašnjih faktora koji čine „ekspozom“ i uključuju način ishrane i
životne navike. Suplementacija antioksidansima je postala sve popularnija praksa za održavanje
optimalne funkcije organizma. Neki od antioksidanasa ispoljavaju prooksidantnu aktivnost i zato je
važno da njihova primena bude kontrolisana. Veza između redoks statusa organizma i delovanja
antioksidanasa omogućava razvoj multidisciplinarnih istraživanja u kojima se povezuju biohemija,
molekularna biologija, nauka o ishrani, hemija prirodnih proizvoda i sama klinička praksa.",
publisher = "Savez farmaceutskih udruženja Srbije, Beograd",
journal = "Arhiv za farmaciju",
title = "Redox homeostasis, oxidative stress and antioxidant system in health and disease: the possibility of modulation by antioxidants, Homeostaza redoks sistema, oksidativni stres i antioksidativni sistem u zdravlju i bolesti: mogućnost modulacije antioksidansima",
volume = "73",
number = "4",
pages = "251-263",
doi = "10.5937/arhfarm73-45369"
}