3-Aminopropylphosphonic acid (3-APPA) is a phosphonic analog of GABA that acts as a partial agonist of GABA receptors (IC = 1.5 μM in a radioligand binding assay). It induces relaxation in unstimulated isolated guinea pig ileum longitudinal muscle and reverses GABA- and baclofen-induced inhibition of twitch responses in isolated guinea pig ileum longitudinal muscle. 3-APPA (5 mg/kg) completely inhibits GABA- and baclofen-induced inhibition of vagally stimulated bronchospasms in guinea pigs. It also reverses the antitussive effect of baclofen in cats when administered at a dose of 3 mg/kg.
3-Aminopropylphosphonic Acid is a phosphonic acid analogue of GABA and a GABAB receptor agonist.
体外研究
3-Aminopropylphosphonic acid (0.1-100 μM) inhibited the binding of 3H-baclofen (a radiolabeled GABAB receptor agonist) in rat meninges, with an IC50 of 1.5 μM.
3-Aminopropylphosphonic acid can be used for grafting modification of mesoporous titanium dioxide powder, and its amino functional groups can affect surface interactions and coordination modes.