The avian pineal organ. Distribution of exogenous indoleamines: A qualitative study of the rudimentary photoreceptor cells by electron microscopic radioautography

@article{Collin1976TheAP,
  title={The avian pineal organ. Distribution of exogenous indoleamines: A qualitative study of the rudimentary photoreceptor cells by electron microscopic radioautography},
  author={Jean Pierre Collin and Andr{\'e} Calas and Michel Juillard},
  journal={Experimental Brain Research},
  year={1976},
  volume={25},
  pages={15-33}
}
The uptake of 5-hydroxytryptophan (3H-5-HTP) and serotonin (3H-5-HT) and their distribution have been demonstrated, at the ultrastructural level, in the secretory rudimentary photoreceptor cells (SRP cells), in the pineal organ of the parakeet and the duck. In vivo experiments. When the parakeets were injected with 3H-5-HTP alone or pretreated with drugs interfering with monoamine metabolism (e.g. R04-4602, nialamide) prior to injection of the label, the SRP cells always exhibited specific… CONTINUE READING