Scavenging effect of benzophenones on the oxidative stress of skeletal muscle cells

Jui Sheng Sun, Ko Ming Shieh, Hsuch Ching Chiang, Shiow Yunn Sheu, Yi Shiong Hang, Fung Jou Lu, Yang Hwei Tsuang

研究成果: 雜誌貢獻文章同行評審

15 引文 斯高帕斯(Scopus)


Benzophenone is an ultraviolet (UV)-absorbing agent that has been used in industry and medicine for more than 30 years. Consumers of cosmetics and sunscreens containing UV-absorbers are exposed to benzophenones on a daily basis, owing to the widespread use of these compounds. However, the efficacy of these compounds as scavengers of oxidative stress is still not well established. In the present study, we investigate the antioxidative capacity of six sunscreen benzophenone compounds. A primary myoblast culture was mixed in vitro with 100 μM menadione. The cytotoxic effect by menadione-induced oxidative stress was monitored by the lucigenin- or luminol-amplified chemiluminescence, methylthiotetrazole (MTT) assay, and the antioxidative effects of various benzophenone compounds were evaluated. The results showed that the addition of menadione can induce oxidative stress on myoblasts by superoxide and hydrogen peroxide production, which can be eradicated by superoxide dismutase (SOD) and catalase, respectively, in a dose-dependent mode. The catalase has a protective effect on the cytotoxicity induced by menadione as measured by the MTT assay, while the SOD does not. The selected benzophenones also have a significant scavenging effect on the menadione- induced cell death on the myoblasts. The ortho-dihydroxyl structure and other hydroxy groups in the same ring have a stronger scavenging effect on the superoxide anion on myoblasts; thus, a stable penoxy radical may be formed. The mechanism of this effect remains to be clarified.

頁(從 - 到)1100-1107
期刊Free Radical Biology and Medicine
出版狀態已發佈 - 5月 1999

ASJC Scopus subject areas

  • 生理學(醫學)
  • 生物化學


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