Neurite degeneration in differentiated human neuroblastoma cells.

• We have studied neurite degeneration in differentiated human neuroblastoma (SH-SY5Y) cells. The axonopathy-inducing potency in vitro of caffeine, diazepam, methylmercury chloride (MeHg), triethyltin chloride (TET) and acrylamide (ACR) was elucidated. After 72 hours of exposure the neurite degeneration was determined (by morphological quantification) as well as the total protein content (general cytotoxicity). The concentrations that caused 20% reduction of number of neurites (ND(20)) for ACR (250+/-36 mum) and TET (0.097+/-0.03 mum) was significantly lower, 63% and 35%, respectively (P

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