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Motoneurons undergo a phase of target-dependent cell death during development. In chick embryos, motoneuronal death is blocked by the application of the nicotinic antagonists d-tubocurare (dTC) or alpha-bungarotoxin (alpha BTX). Paralytic doses of these drugs also increase intramuscular nerve branch formation. To investigate the possibility that a neuronal(More)
Target-dependent cell death of different sub-populations of sensory neurons may be regulated by different trophic factors. To investigate this possibility, we have taken advantage of the fact that the fractions of muscle sensory and cutaneous sensory neurons in chicken dorsal root ganglia (DRG) are probably different at different segmental levels, and we(More)
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