Fig. 3.

BDNF and NT4 support survival of DA nodose neurons to the same degree in vitro. Values are means ± SEM of cell counts from three separate experiments with three cultures per condition per experiment. The presence of BDNF and NT4 together does not increase TH⁺ neuron number, as compared with cultures supplemented with either neurotrophin alone. Moreover, total neuronal survival was similar in the presence of BDNF, NT4, or BDNF plus NT4 (BDNF alone, 3570 ± 268; NT4 alone, 3525 ± 300; BDNF plus NT4, 3628 ± 181 neurons, respectively).