Publication: Synergism between quinine and retinol in fresh isolates of Plasmodium falciparum
Issued Date
2008-10-01
Resource Type
ISSN
00435325
Other identifier(s)
2-s2.0-57849152149
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Mahidol University
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SCOPUS
Bibliographic Citation
Wiener Klinische Wochenschrift. Vol.120, No.SUPPL. 4 (2008), 69-73
Suggested Citation
Ariane Knauer, Kanungnit Congpuong, Gunther Wernsdorfer, Franz F. Reinthaler, Jeeraphat Sirichaisinthop, Walther H. Wernsdorfer Synergism between quinine and retinol in fresh isolates of Plasmodium falciparum. Wiener Klinische Wochenschrift. Vol.120, No.SUPPL. 4 (2008), 69-73. doi:10.1007/s00508-008-1078-2 Retrieved from: https://repository.li.mahidol.ac.th/handle/20.500.14594/19525
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Title
Synergism between quinine and retinol in fresh isolates of Plasmodium falciparum
Abstract
Following earlier reports of synergism between retinol and various antimalarial compounds, the pharmacodynamic interaction between retinol and quinine was investigated in 38 fresh isolates of Plasmodium falciparum. The study was carried out in western Thailand, an area with quinine-resistant P. falciparum. The combination of quinine with retinol in concentrations corresponding to the 50th, 65thand 80thpercentile of the physiological values in healthy subjects, significantly reduced the EC50, EC90, EC99and GMCOC for quinine. The FIC values at EC90and EC99indicate increasing synergism with rising EC and retinol concentration. The mean SFIC value dropped to a level as low as 0.2420, indicating strong synergism. © 2008 Springer-Verlag.