Dual effect of melatonin on the viability of cultured cerebellar cells.

<p>(A) Viability concentration-response curve for cells treated with LPS (30–300 ng/mL) incubated for 24 h; (B) Viability concentration-response curve for cells treated with melatonin (0.1 nM–1 µM) in the presence or absence of LPS (100 ng/mL), incubated for 24 hours. Each well contained 10⁵ cells at the beginning of the experiment. * p<0.05; **p<0.01 compared to control (n = 8–10 per point).