The scavenging ability on ROS was evaluated by means of fluorescence and chemiluminescence.

The DNA damage of peripheral blood lymphocytes wasexamined using comet assay, and the ROS level and MDA content in the liver were also detected.

Objective To investigate the mechanism of oligomers Proanthocyanidins(OPC) on photo-protection of human melanocytes,we evaluated the effects of cellular cycle,intracellular reactive oxidative species(ROS) level and protein level of melanogenic enzymes in cultured human melanocytes following UV-irradiation by OPCs.

Objective: To study comparatively the effect of Guanxin Ⅱ and its constituents, including Salvia, Red Peony root, Chuanxiong, Safflower and Dalbergia wood, in scavenging active oxygen free radical (OFR) to explore their mechanism in overcoming the experimental acute ischemic myocardial injury and protecting myocardial tissue.

The result showed that the active oxygen free radicals of riboflavin produced by irradiation with UV rays could obviously inhibit the mitosis of root cells,so the mitosis index was cut down.

If active oxygen radicals produce excessively or are cleared off slowly in the body, they lead to certain damage to biologic molecule and caused various related disease.

The results manifested that sasanqua have stronger antioxidant capability, inhibition capability of TBARS formation in Fe2+ induced liposome and strong inhibition capability of oxidation of 2'-deoxyribose and could clear active oxygen radicals produced by the chemical reactions.

The active oxygen radicals of cultured bezoar have been studied by chemiluminescence.

Effects of reactive oxygen species on lymphokine-activated killer cells in patients with bladder cancer;

Influence of As_2O_3 on the reactive oxygen species in melanoma B_(16) cells;

With both two photon laser scanning microscopy and confocal laser scanning microscopy in combination with the fluorescent probe Hoechst 33342, 2′, 7′ dichlorofluorescin diacetate (DCFH DA), Indo 1 and Fluo 3 AM, TCS induced changes in nuclear morphology, reactive oxygen species.

Of the reactive oxygen species (ROS), hydrogen peroxide (H_2O_2), superoxide ([XCO.

The roles of reactive oxygen species (ROS), intracellular calcium ([Ca~(2+)]_i) and apoptosis induced by cadmium were compared using normal cells (Human liver cell, HL-7702) and tumor cells (Raji Cell, CL86) in vitro.