Cell proliferation after exposure to methylmercury (MeHg) 3 μM for 24h.
Cellular viability was evaluated at the beginning (day 0) and the end (day 1) of exposure and after 24h (day 2) and 48h (day 3) of MeHg withdrawal (panel A). Number of viable cells were registered on day 2 (panel B). Micrographs (40X) of culture confluence at days 0, 1 and 2 are shown (panel C). Data are shown as mean ± SEM (n = 3–9). Student’s t-test between control and MeHg groups of the same day was performed. *P < 0.01 vs control group of the same day.