- Differential regulation of somatodendritic serotonin 5-HT1A receptors by 2-week treatments with the selective agonists alnespirone (S-20499) and 8-hydroxy-2-(Di-n-propylamino)tetralin: microdialysis and autoradiographic studies in rat brain. Casanovas, J.M., Vilaró, M.T., Mengod, G., Artigas, F. J. Neurochem. (1999)