Abstract
Earlier studies have described strong or moderate activities of carbonic anhydrase (CA; E.C.4.2.1.1) in primary afferent neurons with axons of intermediate or large size.1-5 Enzyme activity of the individual neuron, however, remains constant throughout the entire length of its axis cylinder,6 which greatly facilitates tracing of neurons with different carbonic anhydrase activities. This phenomenon led to the observation4,6–8 that the spinal projection of the central processes of highly CA-positive dorsal root ganglion (DRG) cells corresponds well to the projection of type I muscle afferents. The assumption that the highly CA-reactive neurons are proprioceptive is corroborated by the fact that anulo-spiral nerve terminals enwrapping intrafusal muscle fiber are heavily stained.8 The present study is an attempt at assigning such CA-reactive afferent nerve fibers to a functionally related subpopulation.1,4,5
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© 1990 Plenum Press, New York
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Szabolcs, M., Kopp, M., Schaden, G. (1990). Carbonic Anhydrase Activity of Primary Afferent Neurons in Rat: Attempt at Marking Functionally Related Subpopulations. In: Zenker, W., Neuhuber, W.L. (eds) The Primary Afferent Neuron. Springer, Boston, MA. https://doi.org/10.1007/978-1-4613-0579-8_8
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DOI: https://doi.org/10.1007/978-1-4613-0579-8_8
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