2005
DOI: 10.1590/s0365-05962005001000010
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Estudo in vivo de atividade anti-radicalar por quantificação de peróxidos cutâneos

Abstract: FUNDAMENTOS: O organismo humano possui eficientes mecanismos de defesa contra os radicais livres. A relação causal observada entre estresse oxidativo e diversos processos degenerativos despertou o interesse para a exploração de diversos antioxidantes. OBJETIVOS: Este trabalho propõe um método in vivo para comprovação da eficácia de um novo complexo de alta atividade anti-radicalar (acetato de tocoferila, licopeno e mistura de ácidos clorogênicos rica em ácido caféico). MÉTODOS: Neste ensaio, não invasivo e pla… Show more

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Cited by 4 publications
(4 citation statements)
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References 9 publications
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“…Therefore, developing new formulations to reduce these degenerative processes and increase people's self-esteem is an ongoing goal. To this end, interest has grown in antioxidant drugs that interfere with the generation of free oxygen radicals and the reactions they trigger [ 8 ]. Among these antioxidant drugs, kojic acid (KA) has been highlighted because it presents antioxidant activity by chelating iron ions.…”
Section: Introductionmentioning
confidence: 99%
“…Therefore, developing new formulations to reduce these degenerative processes and increase people's self-esteem is an ongoing goal. To this end, interest has grown in antioxidant drugs that interfere with the generation of free oxygen radicals and the reactions they trigger [ 8 ]. Among these antioxidant drugs, kojic acid (KA) has been highlighted because it presents antioxidant activity by chelating iron ions.…”
Section: Introductionmentioning
confidence: 99%
“…Arnica montana L. (Asteraceae) has been used in traditional Brazilian medicine in the form of tinctures, emulsions and creams for the treatment of pain and inflammation caused by bruising and edemas (BAL-ME, 1982;D'AMELIO, 1999). The anti-inflammatory properties of this plant are attributed to the presence of sesquiterpene lactones, principally esters of helenalin and dihydrohelenalin (ALFREDO et al, 2008), while the antioxidant activity is associated with the presence of quercetin, caffeic acid and chlorogenic acid (PYTEL ET AL., 2005;GANZERA ET AL., 2008). The pharmaceutical use of A. montana has been authorized by the Brazilian National Health Surveillance Agency (Agência Nacional de Vigilância Sanitária, ANVISA) at concentrations equivalent to 0.20 -0.25 mg/mg total sesquiterpene lactones for creams and ointments, and to 1 mg/mL total sesquiterpene lactones diluted 3 to 30 times for tinctures.…”
Section: Introductionmentioning
confidence: 99%
“…17,18 Ultraviolet radiation in the skin leads to the formation of peroxydes that induce the development of free radicals. 19 Emblica has polyphenols in its composition and moderately inhibits peroxidase and strongly prevents the reaction of Fe + with peroxide, blocking the formation of free radicals and protecting fibroblasts. In addition, it increases collagen production and reduces MMP-1.…”
Section: Introductionmentioning
confidence: 99%