CB1R Allosteric modulator 4 is an effective and positive modulator of cannabinoid type-1 (CB1R), exhibiting significant biological activity. This compound inhibits the production of cAMP and demonstrates strong β-arrestin-2 recruitment [1].
(R)-4-Amino-3-hydroxybutyric acid, also known as (R)-GABOB, acts as a modulator of GABA receptors, specifically binding to both GABAA and GABAB receptors and blocking GABA reuptake in rat brain synaptosomes. Additionally, it serves as a GABAC receptor agonist, triggering currents in patch-clamp assays with Xenopus oocytes that express the human receptor. In vivo studies reveal its capability to suppress electrical discharges in the amygdala in cats undergoing N-amidinobenzamide-triggered seizures, indicating its potential therapeutic application in managing seizure disorders.
(R)-(4′-Hydroxy)-5,7-dihydroxy-4-chromanone, an antiangiogenic homoisoflavonoid, exhibits activity against human retinal microvascular endothelial cells.