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The possible role of squalene and its peroxide of the sebum in the occurrence of sunburn and protection from the damage caused by U.V. irradiation.
- K. Ohsawa, T. Watanabe, R. Matsukawa, Y. Yoshimura, K. Imaeda
- Chemistry, Medicine
- The Journal of toxicological sciences
- 25 May 1984
To clarify the role of squalene peroxide in the occurrence of skin damage from sunburn, the optimum condition of squAlene peroxidation and the effect ofSqualenes peroxide on cutaneous tissue were examined and good correspondence was recognized among the spectrum of natural daylight, U.V. irradiation, and absorption spectrum of Squalene and erythema curve. Expand
Detection of hydroxyl radicals with salicylic acid
Salicylate was hydroxylated by hydroxyl radicals formed in the system composed of hypoxanthine-xanthine oxidase and a ferrous iron salt. The hydroxylated products of salicylate, namely, 2,… Expand
Determination of xylitol in the human serum and saliva by ion chromatography with pulsed amperometric detection.
Pulsed amperometric detection with an ion chromatograph was used for the determination of xylitol in the human serum and saliva. Xylitol in serum and saliva was determined by using 0.15M sodium… Expand
Effects of Buffer Solutions and Chelators on the Generation of Hydroxyl Radical and the Lipid Peroxidation in the Fenton Reaction System
Oxygen free radicals, in particular the hydroxyl radical (·OH), which is readily formed by the Fenton reaction, are known to initiate lipid peroxidation. In this study the effects of several buffer… Expand
Fluorometric determination of lipid peroxides in tissues with 1,3-diphenyl-2-thiobarbituric acid.
Lipid peroxides in tissues were fluorometrically determined using 1, 3-diphenyl-2-thiobarbituric acid (DPTBA) as a fluorogenic reagent, and the results were compared with those obtained by the… Expand
Simultaneous determination of oxygen and cadmium in cadmium and cadmium compounds.
Cadmium and its compounds were analysed for oxygen and cadmium by a modification of the Schütze-Unterzaucher method and Cadmium was determined colorimetrically by use of glyoxal-bis-(2-hydroxyanil). Expand
[Effect of sex-hormone on composition of rat skin surface lipid].
- K. Imaeda, K. Ohsawa, T. Watanabe
- Biology, Medicine
- Nihon yakurigaku zasshi. Folia pharmacologica…
- 1 September 1987
It is recognized that sex-hormone dosing after gonadectomy changes the percentage composition of squalene and cholesterol in male rats, but does not charge them in females. Expand
Photoacoustic Densitometer for Sodium Dodecyl Sulfate Polyacrylamide Gel Electrophoresis Combined with Silver Stain
The light scanning photoacoustic densitometry was applied to sodium dodecylsulfate polyacrylamide gel electrophoresis. A near-infrared laser diode and a light emitting diode were used as light… Expand
High performance liquid chromatography-fluorometric determination of lipid peroxides in serum with 1,3-diphenyl-2-thiobarbituric acid