Androgen affects cholinergic enzymes in syringeal motor neurons and muscle

@article{Luine1980AndrogenAC,
  title={Androgen affects cholinergic enzymes in syringeal motor neurons and muscle},
  author={Vicki Luine and Fernando Nottebohm and Clifford Harding and Bruce S. McEwen},
  journal={Brain Research},
  year={1980},
  volume={192},
  pages={89-107}
}
We examined the role of testosterone (T) in regulating the weight of the songbird syrinx and the activity of two cholinergic enzymes, choline acetyltransferase (CAT) and acetylcholinesterase (AChE). Castration of adult male zebra finches or neonatal canaries results in a lowering of syringeal weight and CAT and AChE activity. Administration of T for 1-4 weeks restores syringeal weight and AChE to intact levels in male zebra finches. Activity of CAT in muscle is not fully restored. Ovariectomy… CONTINUE READING

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