Lesions of the Globus Pallidus: Changes in Cortical Choline Acetyltransferase, Choline Uptake and Acetylcholine Output in the Rat

  • F. Casamenti
  • F. Pedata
  • S. Sorbi
  • G. Lo Conte
  • F. Pepeu
Part of the Advances in Behavioral Biology book series (ABBI, volume 25)


The presence of acetylcholine (ACh) (16), choline acetyltransferase (CAT) (6), the histochemical visualization of acetyl-cholinesterase-rich fibers (17), and the output of ACh from the cortical surface, demonstrate the existence of a dense cholinergic network in the cerebral cortex of all animal species so far investigated. However, the origin of this cortical cholinergic network is still mostly unknown. According to McGeer (10), it could be partly formed by intrinsic cholinergic neurons. The destruction of the septum in the rat is followed by approximately 40% decrease in ACh content of (15) and by a similar decrease in spontaneous ACh output from the cerebral cortex (1). These findings suggest that part of the cortical cholinergic network is formed by fibers originating from or passing through the septum.


Cerebral Cortex Cholinergic Neuron Globus Pallidus Septal Lesion Choline Uptake 
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Copyright information

© Plenum Press, New York 1981

Authors and Affiliations

  • F. Casamenti
    • 1
  • F. Pedata
    • 1
  • S. Sorbi
    • 1
  • G. Lo Conte
    • 1
  • F. Pepeu
    • 1
  1. 1.Department of Pharmacology, School of MedicineUniversity of FlorenceFlorenceItaly

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