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J Physiol (Paris). 1988-1989;83(3):240-5.

Studies of development and plasticity in the olfactory sensory neuron.

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Yale University School of Medicine, Section of Neuroanatomy, New Haven, Connecticut 06510.


The olfactory system is favorable for studying mechanisms of development, plasticity and regeneration. Monoclonal antibodies have been generated which differentially stain olfactory axons and can identify their earliest trajectories in the fetal rat. The developing olfactory pathway also shows differential metabolic activity, as revealed by the 2-deoxyglucose method, and these patterns show plasticity as judged by both physiological and behavioral measures. The sensory neurons undergo dieback and neurogenesis following axonal transection; electrophysiological methods are being used to reveal the membrane mechanisms underlying this unique capacity.

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