Chemical and antioxidant evaluation of Indian gooseberry (Emblica officinalis Gaertn., syn. Phyllanthus emblica L.) supplements.

Indian gooseberry (Emblica officinalis Gaertn.) (Euphorbiaceae) has a distinguished history in Ayurveda medicine and is ascribed a number of medicinal properties and as a dietary supplement, its use is increasing in Western countries. It is thought that its beneficial properties are a function of its antioxidant potency.

Chemical composition and in vitro antioxidant evaluation of commercial water-soluble willow herb (Epilobium angustifolium L.) extracts.

Five commercially available water-soluble extracts prepared from the aerial parts of Epilobium angustifolium L. (Onagraceae) were screened for antioxidant-related properties in a battery of six in vitro assays. Total phenol content and qualitative-quantitative analyses were also carried out.

Changes in superoxide dismutase activity and peroxynitrite content in rat peritoneal macrophages exposed to He-Ne laser radiation.

The formation of reactive oxygen and nitrogen species by rat peritoneal macrophages induced by a low-intensity He-Ne laser radiation (LR) was studied in this work. It was found that the formation of reactive oxygen species, nitric oxide, and peroxynitrite as well as changes in the activity of superoxide dismutase (SOD) depended to a large extent on the LR dose. In particular, it was found that activation of SOD at low LR doses was accompanied by nitric oxide level increase, while the level of peroxynitrite showed no significant changes.

[Effect of low intensity laser light in the red range on macrophage superoxide dismutase activity].

The effect of lipopolysaccharides (LPS) and low-power laser radiation on nitric oxide (NO) production and the activity of superoxide dismutase (SOD) in rat peritoneal exudate macrophages was investigated. It was found that LPS increased NO production and SOD activity in macrophages in a concentration-dependent manner. The maximal activity of SOD was more than 100 times greater than in the control and was achieved at an LPS concentration of less than 10 ng/ml.

Mechanism of therapeutic effect of low-intensity infrared laser radiation.

The effect of infrared low-intensity laser irradiation on functional activity of blood polymorphonuclear leukocytes was studied in vitro. A dose-dependent priming of polymorphonuclear leukocytes induced by infrared low-intensity laser irradiation was demonstrated. Similar effects were also observed in the presence of the photosensitizer photosense.