Akuammine (vincamajoridine[2]) is an indole alkaloid. It is the most abundant alkaloid found in the seeds from the tree Picralima nitida,[3] commonly known as akuamma, comprising 0.56% of the dried powder. It has also been isolated from Vinca major.[2] Akuammine is structurally related to yohimbine, mitragynine and more distantly Voacangine, all of which are alkaloid plant products with pharmacological properties.
Pharmacology
Akuammine has antimalarial activity,[3] and may be the primary constituent of P. nitida seeds responsible for this activity.[4]
Akuammine is an opioid agonist with low affinity, selective for the mu-opioid receptor, when tested in vitro.[5][6]
References
- ^ Merck Index (12th ed.). 200.
- ^ a b Janot MM, Le Men J, Aghoramurthy K, Robinson R (September 1955). "The identity of vincamajoridine and akuammine". Experientia. 11 (9): 343. doi:10.1007/BF02159911. PMID 13262018.
- ^ a b Kapadia GJ, Angerhofer CK, Ansa-Asamoah R (December 1993). "Akuammine: an antimalarial indolemonoterpene alkaloid of Picralima nitida seeds". Planta Medica. 59 (6): 565–6. doi:10.1055/s-2006-959764. PMID 8302957. S2CID 260253044.
- ^ Neuwinger HD (1996). African Ethnobotany: Poisons and Drugs : Chemistry, Pharmacology, Toxicology. CRC Press. p. 123. ISBN 9783826100772.
- ^ Menzies JR, Paterson SJ, Duwiejua M, Corbett AD (May 1998). "Opioid activity of alkaloids extracted from Picralima nitida (fam. Apocynaceae)". European Journal of Pharmacology. 350 (1): 101–8. doi:10.1016/s0014-2999(98)00232-5. PMID 9683021.
- ^ Lewin G, Le Ménez P, Rolland Y, Renouard A, Giesen-Crouse E (March 1992). "Akuammine and dihydroakuammine, two indolomonoterpene alkaloids displaying affinity for opioid receptors". Journal of Natural Products. 55 (3): 380–4. doi:10.1021/np50081a017. PMID 1317407.