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Neurosci Lett. 1985 Oct 24;61(1-2):189-94.

Neurogenesis in adult rat dorsal root ganglia.

Abstract

Nerve cells in mammalian species, including primary sensory neurons in the dorsal root ganglia (DRGs), are thought to be generated pre- or perinatally. The only known exceptions are olfactory receptor cells and some cortical microneurons. We now report results of experiments in which the number of neurons in the L4 and L5 DRGs of normal adult rats was counted from serial 10-micrometers paraffin sections stained with cresyl violet. Contrary to expectations, we found that there is a gradual increase in the number of DRG neurons as the animals age. The neuronal population nearly doubles over the adult life of the animal.

PMID:
4080254
[PubMed - indexed for MEDLINE]
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