[The effect of a static magnetic field on hamsters bearing melanoma--cell cycle analysis by flow cytometry]

Hamsters bearing Greene's melanoma in the side were exposed to an almost uniform 0.2 Tesla (T) magnetic field for three hours. Tumors were extirpated immediately after and 3, 12 and 21 hours after the exposure, then were minced and meshed into a single cell suspension. Cells were stained with anti BrdU FITC and Propidium Iodide for cell cycle analysis with FACStar. The distribution of each cycle phase of the exposed group was somewhat unequal to that of the control group. Namely, there was a decrement of G1% at three and twelve hours after exposure and an increment of S% (p = 0.01) at twelve hours after exposure.