Development of ligands at γ-aminobutyrric acid type A (GABAA) receptor subtype as new agents for pain relief
作者:Gabriella Guerrini、Giovanna Ciciani、Fabrizio Bruni、Silvia Selleri、Claudia Martini、Simona Daniele、Carla Ghelardini、Lorenzo Di Cesare Mannelli、Annarella Costanzo
DOI:10.1016/j.bmc.2011.10.047
日期:2011.12
The identification of compounds with selective anxiolytic-like effects, exerted through the benzodiazepine site on gamma-aminobutyric acid type A (GABA(A)) receptors, and that show pronounced antihyperalgesia in several pain models, has oriented research towards the development of new agents for the relief of pain. Starting from our previously reported ligands at the benzodiazepine site on GABA(A) receptors showing selective anxiolytic-like effects, we have designed new compounds with the aim of identifying those devoid of the typical side effects of the classical benzodiazepines. Our preliminary results indicate that compounds 4, 10(+/-) and 11 have a very promising antihyperalgesic profile in different animal pain models (peripheral mono-neuropathy, STZ-induced hyperalgesia). In particular 11 exhibits high potency since it exerted its protective effect starting from the dose of 3 mg/kg po, after single injection. (C) 2011 Elsevier Ltd. All rights reserved.