Studies on the synthesis and opioid agonistic activities of mitragynine-related indole alkaloids: Discovery of opioid agonists structurally different from other opioid ligands. Partial agonistic effect of 9-hydroxycorynantheidine on mu-opioid receptor in the guinea-pig ileum. Self-treatment of opioid withdrawal using kratom (Mitragynia speciosa Korth). To determine if cytotoxicity was accompanied by DNA damage the Mouse lymphoma […]