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Lotus contains anti-HIV compounds. - GreenMedInfo Summary

Abstract Title:

Anti-HIV benzylisoquinoline alkaloids and flavonoids from the leaves of Nelumbo nucifera, and structure-activity correlations with related alkaloids.

Abstract Source:

Bioorg Med Chem. 2005 Jan 17;13(2):443-8. PMID: 15598565

Abstract Author(s):

Yoshiki Kashiwada, Akihiro Aoshima, Yasumasa Ikeshiro, Yuh-Pan Chen, Hiroshi Furukawa, Masataka Itoigawa, Toshihiro Fujioka, Kunihide Mihashi, L Mark Cosentino, Susan L Morris-Natschke, Kuo-Hsiung Lee

Article Affiliation:

Faculty of Pharmaceutical Sciences, Niigata University of Pharmacy and Applied Life Sciences, Niigata 950-2081, Japan.

Abstract:

(+)-1(R)-Coclaurine (1) and (-)-1(S)-norcoclaurine (3), together with quercetin 3-O-beta-D-glucuronide (4), were isolated from the leaves of Nelumbo nucifera (Nymphaceae), and identified as anti-HIV principles. Compounds 1 and 3 demonstrated potent anti-HIV activity with EC50 values of 0.8 and<0.8 microg/mL, respectively, and therapeutic index (TI) values of>125 and>25, respectively. Compound 4 was less potent (EC50 2 microg/mL). In a structure-activity relationship study, other benzylisoquinoline, aporphine, and bisbenzylisoquinoline alkaloids, including liensinine (14), negferine (15), and isoliensinine (16), which were previously isolated from the leaves and embryo of Nelumbo nucifera, were evaluated for anti-HIV activity. Compounds 14-16 showed potent anti-HIV activities with EC50 values of<0.8 microg/mL and TI values of>9.9,>8.6, and>6.5, respectively. Nuciferine (12), an aporphine alkaloid, had an EC50 value of 0.8 microg/mL and TI of 36. In addition, synthetic coclaurine analogs were also evaluated. Compounds 1, 3, 12, and 14-16 can serve as new leads for further development of anti-AIDS agents.

Study Type : In Vitro Study
Additional Links
Pharmacological Actions : Anti-HIV Agents : CK(111) : AC(63)

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