Pathol Biol (Paris). 2003 Apr;51(3):143-6.

Exposition aux écrans vidéos et excrétion urinaire de 6-sulfatoxymelatonine
[Video screen exposure and 6-sulfatoxymelatonin urinary excretion in women]

[Article in French]

Santini R, Messagier R, Claustrat B, Fillion-Robin M, Youbicier-Simo BJ.

Institut national des sciences appliquees, batiment Louis-Pasteur, 20, avenue Albert-Einstein, 69621 Villeurbanne, France.

A study in blind conditions was conducted on 13 women (mean age < 30 years). Six women worked at least four hours per day, five days a week, since more than one month, in front of a video screen constituted the exposed group. Radioimmunoassay of 6-sulfatoxymelatonin was done on urine collected during night. Results were analysed by a non parametric rank-test (Mann-Withney). It was observed an important (- 54%) and significant lower level (p < 0.01) of 6-sulfatoxymelatonin in urine of women exposed to video screen.