Abstract
Isatin is an endogenous oxidized indole that influences a range of processes in vivo and in vitro. It has a distinct and discontinuous distribution in the brain and [3H]isatin binding sites are widely distributed in rat brain sections. The highest labelling is found in hypothalamic nuclei and in the cortex, hippocampus, and cerebellum (Crumeyrolle-Arias et al., 2003). However, the properties of most isatin binding sites and their physiological ligands remain unknown. In the present study the effects of three endogenous oxidized indoles (oxindole, 5-hyxdoxyoxindole, and isatin) on [3H]isatin binding were investigated in rat brain sections. In most regions cold isatin (0.2 mM) significantly reduced [3H]isatin binding. In addition to isatin, the other endogenous oxidized indoles, 5-hydroxyoxindole and oxindole were effective in displacing [3H]isatin.
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Crumeyrolle-Arias, M., Medvedev, A., Cardona, A., Tournaire, MC., Glover, V. (2007). Endogenous oxidized indoles share inhibitory potency against [3H]isatin binding in rat brain. In: Gerlach, M., Deckert, J., Double, K., Koutsilieri, E. (eds) Neuropsychiatric Disorders An Integrative Approach. Journal of Neural Transmission. Supplementa, vol 72. Springer, Vienna. https://doi.org/10.1007/978-3-211-73574-9_4
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DOI: https://doi.org/10.1007/978-3-211-73574-9_4
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