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  - ѪʵúѳԵ, Ѫʵ, Ѫʵ ԷʧҹԹ, 2530
  - ѪʵҺѳԵ, ѪǷ, Ѫʵ ŧóԷ, 2533
  - Doctor of Philosophy, Pharmacognosy, Department of Pharmacy, King's College, University of London, 2541

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  Publication ::
  1. Wonganuchitmeta, S., Yuenyongsawad, S., Keawpradub, N. and Plubrukarn, A. Antitubercular sesterterpenes from Thai sponge Brachiaster sp.  J. Nat. Prod., 67:  1767-1770, 2004.
  2. Itharat, A., Plubrukarn, A., Kongsaeree, P., Bui, T., Keawpradub, N. and Houghton, P.J. Dioscorealides and dioscoreanone, novel cytotoxic naphthofuranoxepins, and 1,4-phenanthraquinone from Dioscorea membranacea Pierre.  Organic Letters, 5:  2879-2882, 2003.
  3. Keawpradub, N., Itharat, A., Tantikarnkul, A., Rugleng, S. and Inruspong, P. Cytotoxic alkaloids from the tuber of Stephania venosa.  Songklanakarin J. Sci. Technol., 23:  225-234, 2001.
  4. Keawpradub, N., Salaeh, S. and Muangwong, S. Free radical scavenging activity of star anise (Illicium verum).  Songklanakarin J. Sci. Technol., 23:  527-536, 2001.
  5. Subhadhirasakul, S., Puripattanavong, J. and Keawpradub, N. Metal content in Thai traditional medicine preparations for external use.  Songklanakarin J. Sci. Technol., 21:  341-345, 1999.
  6. Keawpradub, N., Kirby, G.C., Steele, J.C.P. and Houghton, P.J. Antiplasmodial activity of extracts and alkaloids of three Alstonia species from Thailand.  Planta Medica, 65:  690-694, 1999.
  7. Keawpradub, N, Eno-Amooquaye, E., Burke, P.J. and Houghton, P.J. Cytotoxic activity of indole alkaloids from Alstonia macrophylla.  Planta Medica, 65:  311-315, 1999.
  8. Keawpradub, N. and Houghton, P.J. Indole alkaloids from Alstonia macrophylla.  Phytochemistry, 46:  757-762, 1997.
  9. Keawpradub, N., Houghton, P.J., Eno-Amooquaye, E. and Burke, P.J. Activity of extracts and alkaloids of Thai Alstonia species against human lung cancer cell lines.  Planta Medica, 63:  97-101, 1997.
  10. Subhadhirasakul, S., Puripattanavong, J. and Keawpradub, N. Heavy metal content in Thai traditional medicine preparations: internal use.  Songklanakarin J. Sci. Technol., 16:  343-352, 1994.
  11. Keawpradub, N., Takayama, H., Aimi, N. and Sakai, S. Indole alkaloids from Alstonia glaucescens.  Phytochemistry, 37:  1745-1749, 1994.
  12. Keawpradub, N., Takayama, H. and Sakai, S. Phytochemical study of Alstonia glaucescens.  Songklanakarin J. Sci. Technol., 14:  263-269, 1992.