รศ.ดร.วันชัย ดีเอกนามกูล

ผลงานตีพิมพ์ในวารสารระดับนานาชาติ

1. Wungsintaweekul J. and De-Eknamkul W.,  Biosynthesis of plaunotol in Croton stellatopilosus proceeds via the deoxyxylulose phosphate pathway.   Tetrahedron Letters. 46: 2125-2128 (2005).
2. Monthakantirat, O., De-Eknamkul, W., Umehara, K., Yoshinaga, Y. Miyase, T., Warashina, T. and Noguchi, H. Phenolic Constituents of the Rhizomes of the Thai Medicinal Plant Belamcanda chinensis with Proliferative Activity for Two Breast Cancer Cell Lines.  Journa lof Natural Products. 68: 361-364 (2005).
3. Nualkaew N., De-Eknamkul W., Kutchan T.M., and Zenk M.H.  Geranylgeraniol formation in Croton stellapilosus proceeds via successive monodephosphorylations of geranylgeranyl diphosphate.  Tetrahedron Letters. 46: 8727 – 8731 (2005).
4. Sitthithaworn, W., Potduang, B. and De-Eknamkul, W.  Localization of Plaunotol in the leaf of Croton stellatopilosus ohba. ScienceAsia, 32: 17-20 (2006).
5. Nualkaew, N., De-Eknamkul, W., Kutchan, T.M. and Zenk, M.H.  Membrane-bond geranylgeranyl diphosphate phosphatases : Purification and characterization from Croton stellatopilosus leaves.  Phytochemistry, 67: 1613-1620 (2006).
6. Putalun, W., Pimmeuangkao, S., De-Eknamkul, W., Tanaka, H. and Shoyama, Y.  Sennosides A and B Production by Hairy Roots of Senna alata (L.) Roxb. Z. Naturforsch. 61c: 367-371 (2006).
7. Koobkokkruad, T., Chochai, A., Kerdmanee, C., and De-Eknamkul, W. TLC-Densitometric Analysis of Artemisinin for Rapid Screening of High Producing Plantlets of Artemisia annua L.  Phytochemical Analysis, 229-234 (2007).
8. Wungsintaweekul, J., Sriyapai, C., Kaewkerd, Sanlaya, Tewtrakul, S., Kongduang, D., De-Eknamkul, W. Establishment of Croton Stellatopilosus Suspension Culture for Geranylgeraniol Production and Ditexpenoid Biosynthesis. Z. Naturforsch, 62C, 389-396 (2007)
9. Putalun, W., Luealon, W., De-Eknamkul, W., Tanaka, H. and Shoyama, Y. Improvement of Artemisinin Production by Chitosan in Hairy root cultures of Artemisia annua L. Biotechnology Letters, 29 : 1143-1146 (2007).
10. Springob, K., Samappito, S., Jindaprasert, A., Schmidt, J., Page, J.E., De-Eknamkul, W. and Kutchan, T.M.  A Polyketide Synthase of Plumbago indica that Catalyzes the Formation of a Hexaketide Pyrones. FEBS J, 274, 406-417 (2007).
11. Tanaka, H., Putalun, W., De-Eknamkul, W., Matangkasombut, O., Shoyama, Y. Preparation of a Novel Monoclonal Antibody against the Antimalarial Drugs Artemisinin and Artesunate. Planta Medica. 73: 1127-1132 (2007).
12. Umehara, K., Nemato K., Kimijima, K., Matsushita, A., Terada, E., Monthakantirat, O., De-Eknamkul, W., Miyase, T., Warashina, T., Noguchi, H. Estrogenic Constituents of the Heartwood of Dalbergia paruiflora, Phytochemistry, 69(2), 546-552 (2008).
13. Koobkokkruad, T., Chochai, A., Kermanee, C., De-Eknamkul, W. Effects of Low-Dose Gamma-Irradiation on Artemisinin Content and Amorpha-4,11-Diene Synthase Activity in Artemisia annua. International Journal of Radiation Biology 84: 878-884 (2008).
14. Lualon, W., De-Eknamkul, W., Tanaka, H, Shoyama Y. and Putalun W. Multiple Shoot Regeneration and Artemisinin Production in Artemisia annua L. using Thidiazuron. Zeitschrift for Naturforschung, 63 C: 96-100 (2008).
15. Jindaprasert A., Springob, K., Schmidt, J., De-Eknamkul, W., Kutchan, T.M. Pyrone Polyketides Synthesized by a Type III Polyketide Synthase from Drosophyllum lusitanicum, Phytochemistry,  69:  3043–3053 (2008).
16. Wungsintaweekul, J., Sirisuntipong, T., Kongduang, D., Losuphanporn, T., Ounaroon, A., Tansakul, P. and De-Eknamkul, W. Transcription profiles of Genes Encoding 1-Deoxy-D-Xylulose 5-Phosphate Synthase and 2C-Methyl-D-Erythritol 4-Phosphate Synthase in Plaunotol Biosynthesis from Croton stellatopilosus. Biol. Pharm. Bull. 31: 852-856 (2008).
17. Kongduang, D., Wungsintaweekul, J. and De-Eknamkul, W. Biosynthesis of b-Sitosterol and Stigmasterol Proceeds Exclusively via the Mevalonate Pathway in Cell Suspension Cultures of Croton stellatopilosus. Tetrahedron Letters. 49: 4067-4072 (2008).
18. Phongprueksapattana, S., Putalun, W., Keawpradub, N., and Wungsintaweekul, J. Mitragyna speciosa: Hairy Root Culture for Triterpenoid Production and High Yield of Mitragynine by Regenerated Plants. Zeitschrift fur Naturforschung, 63 C: 691-698 (2008).
19. Sakamoto S, Putalun W., Tsuchihashi R, Morimoto S, Kinjo J, Tanaka H. Development of an Enzyme-linked Immunosorbent Assay (ELISA) Using Highly-Specific Monoclonal Antibodies Against Plumbagin. Anal Chim Acta. 607(1): 100-105 (2008).
20. Sakamoto S, Sakoda J, Morinaga O, Putalun W., Tsuchihashi R, Morimoto S, Kinjo J, Tanaka H. Development of an Enzyme Linked Immunosorbent Assay for Direct Determination of Anticancer Drug Vitamin K3 in Serum. Journal of Health Science. 54: 508-511 (2008).
21. Sakamoto S, Taura F, Putalun W, Pongkitwitoon B, Tsuchihashi R, Morimoto S, Kinjo J, Shoyama Y, Tanaka H. Construction and Expression of Specificity-Improved Single-Chain Variable Fragments Against the Bioactive Naphthoquinone Plumbagin. Biol. Pharm Bull.  32(3): 434-439 (2009).
22. Chanama, M., Wunnakup, T., De-Eknamkul, W. and Chanama, S. Improvement of Thin Layer Chromatography for Enzyme Assay of Geranylgeraniol-18-Hydroxylase from Croton stellatopilosus Ohba.   Journal of Planar Chromatography 22: 49-53 (2009).
23. Rinthong, T., Jindaprasert, A., and De-Eknamkul W. Simple Densitometric TLC Analysis of Plaunotol for Screening of High-Plaunotol-Containing Plants of Croton stellatopilosus Ohba Journal of Planar Chromatography  22: 55-58 (2009).

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