Immunohistochemical localization of choline acetyltransferase in rabbit spinal cord and cerebellum |
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Authors: | K-S Karen Kan Li-Pen Chao Lawrence F Eng |
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Institution: | 1. Department of Neurology, Reed Neurological Research Center, UCLA School of Medicine, Los Angeles, Calif. 90024, USA;2. Veterans Administration Hospital, Palo Alto, Calif. 94304 U.S.A. |
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Abstract: | Guinea pig antiserum specific for purified bovine choline acetyltransferase has been shown to cross-react with rabbit enzyme. We used the peroxidase-antiperoxidase immunohistochemical method to demonstrate the localization of choline acetyltransferase in formalin-fixed and paraffin-embedded sections of rabbit spinal cord and cerebellum. In the spinal cord, in agreement with our and others' previous results using immunofluorescent techniques, choline acetyltransferase was found in the cell bodies of the ventral horn motor neurons. In the cerebellum, choline acetyltransferase was localized exclusively in the mossy fibers and the glomeruli of the cerebellar folia. The immunohistochemical findings in the cerebellum reveal the morphological detail of cholinergic axons and their terminals. The results are consistent with published biochemical data on the cerebellar distribution of choline acetyltransferase. |
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