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Publications

Book Chapters

1. El Sayed KA, Dunbar DC, Bartyzel P, Day W, Zjawiony J, Hamann MT. Biologically active products:
Pharmaceuticals: Marine natural product as antiinfective agents, CRC Press, Cutler, S.J. & Cutler, H., Editors, 2000; 233-252, ISBN: 0-8493-1887-4.
2. El Sayed KA. Studies in Natural Product Chemistry: Natural products as antiviral agents, Elsevier
Science Publishers, Amsterdam, Atta-ur-Rahman, Editor. 2000; 24:473-572.

Original Articles

1. Halim AF, Zaghloul AM, El Sayed KA. Lupeol long-chain fatty acid esters and other lipid constituents from Cynanchum acutum L. (Asclepiadaceae). Egyptian J. Pharm. Sci. 1990; 31: 99-101.
2. El Sayed KA, Halim AF, Zaghloul AM, Voehler M. First report of sarcostin isolation from Cynanchum acutum L.(Asclepiadaceae). Fac. Sci. Proc.CCRD'94, 1994;6N/1-6N/4, Mansoura Univ., Egypt.
3. Badria FA, McChesney JD, Halim AF, Zaghloul AM, El Sayed KA. Time course and inhibition of stavaroside K, veratarmine and cevine-induced hemolysis by other pregnane glycosides and Veratrum alkaloids. Die Pharmazie 1995; 50:421-23.
4. El Sayed KA, McChesney JD, Halim AF, Zaghloul AM, Voehler M. Two steroidal alkaloids from Veratrum viride. Phytochemistry 1995; 38:1547-50.
5. El Sayed KA, Halim AF, Zaghloul AM, McChesney JD, Stone MP, Voehler M, Hayashi K. Pregnane glycosides from Stapelia variegata L. Phytochemistry 1995; 39:395-403.
6. El Sayed KA, Dunbar DC, Goins DK, Cordova CR, Perry TL, Wesson KJ, Sanders SC, Janus SA, Hamann MT. The marine environment: A resource for prototype antimalarial agents. Journal ofNatural Toxins, 1996; 5:261-285.
7. El Sayed KA, Hamann MT. A new norcembranoid dimer from the Red Sea soft coral Sinularia gardineri. Journal of Natural Products, 1996; 59: 687-689.
8. El Sayed KA, McChesney JD, Halim AF, Zaghloul AM, Lee I. A study of alkaloids in Veratrum viride. International J. Pharmacognosy 1996; 34:161-173.
9. El Sayed KA, Dunbar DC, Perry TL, Wilkins SP, Hamann MT, Greenplate JT, Miller-Wideman M. Marine natural products as prototype insecticidal agents. Journal of Agriculture and Food Chemistry,1997; 45:2735-2739.
10. Ross SA, El Sayed KA, El Sohly MA, Hamann MT, Abdel-Halim, OB, Ahmed AF, Ahmed MM. Phytochemical analysis of Geigeria alata and Francoueuria crispa essential oils. Planta Medica 1997; 63: 479-482.
11. El Sayed KA, Hamann MT, Abd El-Fattah H, Zaghloul A M. New pyrrole alkaloids from Solanum sodomaeum L. Journal of Natural Products 1998; 61:848-850.
12. El Sayed KA, Microbial biotransformation of veratramine. Journal of Natural Products 1998; 61:149-151.
13. El Sayed KA, Hamann MT, Waddling CA, Jensen C, Lee SK, Dunstan CA, Pezzuto JM. Structurally novel bioconversion products of the marine natural product sarcophine effectively inhibit JB6 celltransformation. Journal of Organic Chemistry, 1998; 63: 7449-7455.
14. Cutler HG, Cutler SJ, Ross SA, El Sayed KA, Dugan FM, Bartlett MG, Hill AA, Hill RA, Parker SR. Koninginin G, a new metabolite from Trichoderma aureoviride. Journal of Natural Products, 1999; 62: 137-139.
15. El Sayed KA, Hamann MT, Mayer AMS, Kelly M. The biocatalytic transformation of furan to amide in the bioactive marine natural product palinurin, Journal of Organic Chemistry. 1999; 64:9258-9260.
16. El Sayed KA, Dunbar DC, McChesney JD, Zaghloul AM, Halim AF. Transformation of jervine by Cunninghamell a elegans 9245. Phytochemistry 2000; 55: 19-22.
17. El Sayed KA, Al-Said M, El-Feraly FS, Ross SA. Quinoline alkaloids from Ruta chalepensis. Journal of Natural Products, 2000; 63:995-997.
18. Orabi KY, El Sayed KA, Al-Said M, El-Feraly FS. Sesquiterpene lactones from Onopordium ambiguum. Saudi Pharmaceutical Journal 2000; 8:101-105. 
19. El Sayed KA. Microbial models of mammalian metabolism. Microbial transformation of naproxen. Die Pharmazie 2000; 55:934-936.
20. El Sayed KA. Microbial transformation of papaveraldine, Phytochemistry 2000; 53:675-678.
21. Ilias M, El Sayed KA, Mossa J, Al-Said M, El-Feraly FS, Clark AM, Hufford CD, Oh S, Mayer AMS. Bioactive 12-oleanene triterpene and secotriterpene acids from Maytenus undata. Journal of Natural Products, 2000; 63:605-610.
22. El Sayed KA, Ross SA, El Sohly MA, Khalafalla MM, Abdel-Halim OB, Ikegami F. Effects of different levels of fertilizers on the amino acid, fatty acid and essential oil composition of Nigella sativa L. seeds. Saudi Pharmaceutical Journal, 2000; 8:175-182.
23. El Sayed KA, Bartyzel P, Dunbar DC, Shen X, Wilkins SP, Perry TL, Zjawiony JK, Hamann MT. Marine natural products as antituberculosis agents. Tetrahedron, 2000; 56:949-953.
24. El Sayed KA. Microbial transformation of hypoestenone. Journal of Natural Products, 2001; 64: 373-375.
25. El Sayed KA. A pseudoguaiane sesquiterpene xylopyranoside from Echinops hussoni. Die Pharmazie, 2001; 56: 415-417.
26. El Sayed KA, Hamann MT, Hashish NE, Shier T, Kelly M, Khan A. Antimalarial, antiviral, and antitoxoplasmosis norsesterterpene peroxide acids from the Red Sea sponge Diacarnus erythraeanus. Journal of Natural Products 2001; 64:522-524.
27. El Sayed KA, Dunbar DC, Kelly M, Kara UAK, Ang KH, Katsuyama I, Hamann MT. New manzamine alkaloids with potent activity against infectious diseases. Journal of American Chemical Society 2001;123:1804-1808.
28. El Sayed KA, Orabi KY, Dunbar DC, Hamann MT, Avery MA, Sabnis YA, Mossa JS, El-Feraly FS. Transformation of lactone to lactam in sarcophine and antimalarial activity of the resulting N-substituted azasarcophines. Tetrahedron 2002; 58:3699-3708.
29. Hamann MT, El Sayed KA. Methods of treating drug-resistant infections through administration of pharmaceutical compositions comprising manzamine alkaloids. PCT Int. Appl. 2002; Application: WO2001-2001US27035 200110829. AN 2002:171687.
30. Yousaf M, El Sayed KA, Rao KV, Lim CW, Hu J, Kelly M, Franzblau SG, Zhang F, Peraud O, Hill RT, Hamann MT. 12,34-Oxamanzamines, novel biocatalytic and natural products from manzamine producing Indo-Pacific sponges. Tetrahedron 2002; 58:7397-7402.
31. El Sayed KA, Dunbar DC. Microbial transformation of rubijervine. Chemical and Pharmaceutical Bulletin 2002; 50:1427-1429.
32. Hoye TR, Ayyad EN, Eklov BM, Hashish NE, Shier WT, El Sayed KA, Hamann MT. Towards computing natural product structures: 16-epi-Latrunculin B, a new stereoisomer of the potent actin polymerization inhibitor, latrunculin B. Journal of American Chemical Society, 2002; 124:7405-7410.
33. Orabi KY, El Sayed KA, Hamann MT, Al-Said M, Higa T, Kelly M. Araguspongins K and L, New bioactive bis-1-oxaquinolizidine N-oxide alkaloids from Red Sea specimens of Xestospongia exigua (Kirkpatrick, 1900) (Demospongiae: Haplosclerida). Journal of Natural Products 2002; 65:1782-1785.
34. Al-Rehaily AJ, El Sayed KA, Al-Said M, Ahmed B. Trisulcusine: a novel spiro quinazoline alkaloid from Anisotes trisulcus. Indian Journal of Chemistry, Section B: Organic Chemistry Including Medicinal Chemistry, 2002; 41B:2385-2389.
35. El Sayed KA, Yousaf M, Hamann MT, Avery M, Kelly M, Wipf P, Microbial and chemical transformation studies of the bioactive marine sesquiterpene S (+)-curcuphenol and curcudiol. Journal of Natural Products. 2002; 65:1547-1553.
36. Peng J, Shen X, El Sayed KA, Dunbar DC, Perry TL, Wilkins SP, Hamann MT, Bobzin S, Huesing J, Camp R, Prinsen Mike, Krupa Dan, Wideman MA. Marine natural products as prototype agrochemicalagents. Journal of Agricultural and Food Chemistry, 2003; 51:2246-2252.
37. Khalil AT, Maatooq GT, El Sayed KA. Limonoids from Citrus reticulata. Zeitschrift fuer Naturforschung, C: Journal of Biosciences, 2003; 58:165-170.
38. Gochfeld DJ, El Sayed KA, Yousaf M, Hu J, Bartyzel P, Dunbar DC, Wilkins SP, Zjawiony JK, Schinazi RF, Schlueter Witrz S, Tharnish PM, Hamann MT. Marine natural products as lead anti-HIV agents.Mini Reviews in Medicinal Chemistry, 2003, 3:451-475.
39. Khalil AA, El Sayed KA, Belal F, Khalil NY, Hamann MT. Spectrofluorimetric determination of manzamine A in spiked human urine and plasma. Pharmazie, 2003, 58:385-388.
40. Ahmed B, Al-Rehaily AJ, Al-Howiriny TA, El Sayed KA, Ahmed MS. Scropolioside-D2 and Harpagoside-B: Two new iridoid glycosides from Scrophularia deserti and their antidiabetic and antiinflammatory activity. Biological Pharmaceutical Bulletin, 2003, 26:462-467.
41. El Sayed KA. Natural products as angiogenesis modulators. Mini Reviews in Medicinal Chemistry, 2005, 5, 971-993.
42. Arif JM, Kunhi M, Siddiqui YM, El Sayed KA, Orabi KY, Al-Hazzani A, Al-Ahdal MN, Al-Khodairy FM. Differential modulation of benzo[a]pyrene-derived DNA adducts in MCF-7 cells by marine compounds.International Journal of Cancer Prevention, 2004, 1, 89-97.
43. Arif JM, Kunhi M, Siddiqui YM, El Sayed KA, Orabi KY, Al-Hazzani A, Al-Ahdal MN, Al-Khodairy FM. Role of intermediary biomarkers in determining the anticancer efficacy of marine compounds.Medicinal Chemistry Research, 2004; 13:553-562.
44. Sawant SS, Sylvester PW, Avery MA, Desai P, Youssef DTA, El Sayed KA. Bioactive rearranged and halogenated semisynthetic derivatives of the marine natural product sarcophine. Journal of Natural Products. 2004; 67:2017-2023.
45. El Sayed KA, Youssef DTA, Marchetti D. 2006, Bioactive natural and semisynthetic latrunculins. Journal of Natural Products. 69, 219-223.
46. Sawant SS, Youssef DTA, Mayer AMS, Sylvester PW, Wali V, Arant ME, El Sayed KA. 2006. Anticancer and anti-inflammatory sulfur-containing semisynthetic derivatives of sarcophine. Chemical and Pharmaceutical Bulletin, 69, 1010-1013.
47. Sawant SS, Youssef DTA, Reiland J, Ferniz M, Marchetti D, El Sayed KA. 2006 Biocatalytic and antimetastatic studies on the Red Sea soft coral Sarcophyton glaucum terpenes. Journal of Natural Products, 69, 1010-1013.
48. Sawant SS, Youssef DTA, Sylvester PW, Wali V, El Sayed KA. 2007.  Antiproliferative sesquiterpenes from the Red Sea soft coral Sarcophyton glaucum. Natural Product Communications, 2, 117-119.
49. Arif JM, Sawant SS, El Sayed KA, Kunhi M, Subramanian MP, Siddiqui YM, Youssef DTA, Al-Hussain K, Mohammed N, Al-Ahdal MN, Al-Khodairy F. 2007. Antiproliferative potential of sarcophine and its semisynthetic sulfur-containing derivatives against human mammary carcinoma cell lines. Journal of Natural Medicines, 61, 154-158.
50. Orabi KY, El Sayed KA. 2007. Biocatalytic studies of the furanocoumarins angelicin and chalepensin. Natural Product Communications, 2, 565-569.
51. El Sayed KA, Sylvester PW. 2007. Biocatalytic and semisynthetic studies of the anticancer tobacco cembranoids. Expert Opinion on Investigational Drugs. 16, 877-887.
52. Jain S, Shirode A, Yacoub S, Barbo A, Sylvester PW, Huntimer E, Halaweish F, El Sayed KA. 2007. Biocatalysis of the anticancer sipholane triterpenoids. Planta Medica. 70, 591-596.
53. Shi Z, Jain S, Kim IW, Peng XX, Abraham, I, Fu L, Youssef DT, El Sayed KA, Ambudkar SV, Gottesman MM, Chen ZS. 2007. Sipholenol A, a marine-derived sipholane triterpene, potently reverses P-glycoprotein-mediated (ABCB1)-mediated multidrug resistance in cancer cells. Cancer Science. 98, 1373-1380.
54. Sylvester PW, Wali VB, Shirode AB, Bachawal SV, El Sayed KA. 2007. Tocotrienols are the most potent anticancer agents in the vitamin E family of compounds. Curr. Research in Cancer, 1, 55-75.
55. Ibrahim SRM, Badr JM, El Sayed KA, Youssef DTA. 2007. A new cytotoxic sesquiterpene and three anti-inflammatory flavonoids of the Egyptian Tanacetum santolinoides. Natural Product Communications 2, 1071-1074.
56. Jain S, Laphookhieo S, Shi Z, Fu L, Akiyama S, Chen ZS, Youssef DTA, van Soest RWM, El Sayed KA. 2007. Reversal of P-glycoprotein-mediated multidrug resistance by sipholane triterpenoids. Journal of Natural Products. 70, 928-931
57. El Sayed KA, Khalil AA, Yousaf, M., Labadie G., Mahesh K. Gundluru M.K., Franzblau S.G., Mayer AMS., Avery M., Hamann M.T. 2008. Semisynthetic studies on the manzamine alkaloids. Journal of Natural Products. 71, 300-308
58. El Sayed KA, Laphookhieo S, Prestridge J, Wali VB, Shirode AB, Sylvester PW. 2008. Semisynthetic and transformation studies of (1S,2E,4S,6R,7E,11E)-2,7,11-cembratriene-4,6-diol. Journal of Natural Products 71, 117-122.
59. El Sayed KA, Laphookhieo S, Baraka HN, Yousaf M, Hebert A, Bagaley D, Rainey FA, Muralidharan A, Thomas S, Shah G. 2008. Biocatalytic and semisynthetic optimization of the anti-invasive tobacco (1S,2E,4R,6R,7E,11E)-2,7,11-cembratriene-4,6-diol.Bioorganic Medicinal Chemistry. 16, 2886-2893.
60. El Sayed KA, Shallal HM, Khanfar M, Muralidharan A, Thomas S, Youssef DTA, Zhou YD, Nagle DG, Shah G. 2008. Latrunculin A and Its C-17-O-Carbamates Inhibit Prostate Cancer Invasion and Breast Cancer HIF-1 Activation. Journal of Natural Products. 71, 396-402.
61. Yu B-Z, Kaimal R,  Bai S, El Sayed KA, Tatulian S, Apitz R, Jain M, uitang Deng R,  Berg OG. (2008) Effect of bile salts and cembrenes on FXR and PLA2: Role in Catabolic homeostasis of cholesterol. Journal of Natural Products. (Submitted 7/08).
62. Abdel Bar FM, Zaghloul AM, Bachawal SV, Sylvester PW, Ahmad KF, El Sayed KA. (2008) Antiproliferative Triterpenes from Melaleuca ericifolia. Journal of Natural Products (In Press)
63. Radwan MR,  Manly SP, El Sayed KA, Wali VB, Sylvester PW,  Awate B, Shah G, Ross SA. Sinulodurin A and B, anticancer diterpenes from the soft coral Sinularia dura. Journal of Natural Products 71, 1468-1471.
64. Girish V. Shah, Anbalagan Muralidharan, Shibu Thomas, Mitan Gokulgandhi, Mudit Mudit, Mohammad Khanfar and Khalid El Sayed. Identification of a small molecule(s) class to enhance cell-cell adhesion and attenuate prostate tumor growth and metastasis. Molecular Cancer Therapeutics (Accepted 8/08)

Paper Presentations

1. El Sayed, K. A., Halim, A. F., Zaghloul, A. M., and McChesney, J. D., 1992.  "Nine new Pregnane Ester Glycosides from Stapelia variegata L."  19th MALTO Medicinal Chemistry-Pharmacognosy meeting at Little Rock, Arkansas.
2. El Sayed, K. A., Halim, A. F., Zaghloul, A. M., and McChesney, J. D., 1993.  "A Study of Alkaloids in Veratrum viride (Ait.)".  20th MALTO Medicinal Chemistry-Pharmacognosy meeting at Monroe, Louisiana.
3. El Sayed, K. A., Halim, A. F., Zaghloul A. M., and McChesney, J. D., 1995.  "Nine New Pregnane Ester Glycosides from Stapelia variegata L.".  The 33th American Society of Pharmacognosy Annual Meeting, Williamsburg, Virginia.
4. El Sayed, K. A., Halim, A. F., Zaghloul, A. M., and McChesney, J. D., 1993.  "Veratrum- an Old Hypotensive Revisited."  The 33th American Society of Pharmacognosy Annual Meeting, Williamsburg, Virginia.
5. El Sayed, K. A., McChesney, J. D., Halim, A. F., Zaghloul, A. M., and Voehler, M., 1994.  "First Report of Sarcostin Isolation from Cynanchum acutum L. (Asclepiadaceae)."  The 3rd International Chemistry & Its Applications Meeting, Mansoura University, Mansoura, Egypt.
6. El Sayed, K. A., McChesney, J. D., Halim, A. F., Zaghloul, A. M., and Voehler, M., 1994.  "Tew New Steroidal Alkaloids from Veratrum viride (Ait.) - Liliaceae".  The 3rd International Chemistry & Its Applications Meeting, Mansoura University, Mansoura, Egypt.
7. El Sayed, K. A., and Hamann, M. T., 1995.  " A New Norcembranoid Dimer from the Red Sea Soft Coral Sinulari gardineri".  The 36th American Society of Pharmacognosy Annual Meeting, University, Mississippi.
8. Hamann, M. T., Wesson, K. J., El Sayed, K. A., and Perry, T. L., 1995.  "Novel Antiinfective and Anticancer Agents from Marin Invertebrates."  Young Investigator Symposium, The 36th American Society of Pharmacognosy Annual Meeting, University, Mississippi.
9. Dunbar, D. C., El Sayed, K. A., Goins, D. K., Janus, S. A., Ager, A. L., and Hamann, M. T., 1996.  "Antimalarial Compounds from Marine Sponges".  23rd MALTO Medicinal Chemistry-Pharmacognosy Meeting at University, Mississipi.
10. Dunbar, D. C., El Sayed, K. A., Goins, D. K., Janus, S. A., Ager, A. L., and Hamann, M. T., 1996.  "The Antimalarial Activity of Halichondramide, Swinholide A., and other Marine Compounds."  The 37th American Society of Pharmacognosy Annual Meeting, Santa Cruz, California.
11. Wilkins, S. P., El Sayed, K. A., Wright, M., Clark, A. M. and Hamann, M. T., 1996.  "Antimycotic Marine Natural Products."  The 37th American Society of Pharmacognosy Annual Meeting, Santa Cruz, California.
12. El Sayed, K. A., Ross, S. A., El Sohly, M. A., Khalafalla, M. M., Abdel-Halim, O. B., and Ikegamai, F., 1996.  "Effects of Different Levels of Nitrogen and Phosphorus Fertilizers on the Amino Acid, Lipid and Essential Oil composition and Contents of Nigella sativa L. Seeds."  The 37th American Society of Pharmacognosy Annual Meeting, Santa Cruz, California.
13. Ross, S. A., El Sayed, K. A., El Sohly, M. A., Hamann, M. T., Abdel-Halim, O. B., Ahmed, A. F., and Ahmed, M. M., 1996.  "Phytochemical Analysis of Geigeria alata and Francoueuria crispa Essential Oils."  The 37th American Society of Pharmacognosy Annual Meeting, Santa Cruz, California.
14. Zjawiony, J. K., Hamann, M. T., Slattery, M., Walker, L. A., El Sayed, K. A., and Bartyzel, P., 1996.  "Soft Coral Cembranolides as Prototypes of New Pharmaceutical Agents".  Mississippi-Alabama Sea Grant Consortium Treat, Gulf Shores, Alabama.
15. El Sayed, K .A., Dunbar, D.  C., Perry, T. L., Wilkins, S. P., Hamann, M. T., Greenplate, J. T., and Miller-Wideman, M., 1997.  "Marine Natural Products as Prototype Insecticidal Agents".  The 38th American Society of Pharmacognosy Annual Meeting, Iowa City, Iowa.
16. El Sayed, K. A., and Hamann, M.  T., 1997.  "Microbial Bioconversion Studies of Sarcophine."  The 38th American Society of Pharmacognosy Annual Meeting, Iowa City, Iowa.
17. El Sayed, K. A, Day, W. B., and Hamann, M. T., 1997.  "Marine Natural Products as Antiinfective Agents."  The 214th American Chemical Society Meeting, Las Vegas, Nevada.
18. El Sayed, K. A., and Hamann, M. T., 1997.  "Bioactive and Structurally Diverse Secondary Metabolites of Marine Origin."  The National Center for the Development of Natural Products Poster Session.
19. El Sayed, K. A., Dunbar, D. C., and Hamann, M. T., 1998.  "New Manzamines:  Structures, Microbial Bioconversion, Bioactivity and 15N-NMR Studies".  The 39th American Society of Pharmacognosy Annual Meeting, Orlanda, Florida.
20. Cutler, H. G., Cutler, S. J., Ross, S. A., El Sayed, K. A., Dugan, F. M., Bartlett, M. G., Hill, A. A., Hill, R. A., and Parker, S. R., 1998.  "Koninginin G, A New Metabolite from Trichoderma aureovirid".  The 39th American Society of Pharmacognosy Annual Meeting.  Orlanda, Florida.
21. Hashish, N. E., El Sayed, K. A., Hamann, M. T., and Shier, T., 1998.  "Bioactive Marine Secondary Metabolites from The Egyptian Red Sea Coast".  The 39th American Society of Pharmacognosy Annual meeting, Orlanda, Florida.
22. El Sayed, K. A., Dunbar, C. D., Hamann, M. T., Mayer, A. M.S., and Pezzuto, J. M., 2000.  "Microbial Transformation of Marine Natural Products".  The 41st American Society of Pharmacognosy Annual Meeting, Seattle, Washington.
23. El Sayed, K. A., Dunbar, C. D., McChesney, J. D., Zaghloul, A. M., and Halim, A. F., 2000.  "Microbial Transformation of Veratrum Alkaloids".  The 41st American Society of Pharmacognosy Annual Meeting, Seattle, Washington.
24. El Sayed, K. A., Wilkins, S. P., Burkepile, D. E., Kelly, M., Ang, K. K. H., Kara, U. A. K., and Hamann, M. T., 2000.  Marine natural products with activity against infectious diseases and their optimization using biocatalysis and parallel synthesis.  Marine National Products Gordon Conference.
25. El Sayed, K. A., Hamann, M. T., and Avery, M., 2001.  "Microbial Transformation of S (+) - Curcuphenol and Curcudiol".  28th MALTO Medicinal Chemistry-Pharmacognosy Meeting at Oxford, Mississippi.
26. El Sayed, K. A., Orabi, K. Y., Dunbar, D. C., El-Feraly, F. S., Avery, M. and Hamann, M. T., 2001.  "Transformation of Lactone to Amide in Sarcophine and Antimalarial Activity of The Resutling N-Containing Cembranoids."  The 42nd American Society of Pharmacognosy Annual Meeting, Oaxaca, Mexico.
27. Yacoub, S., and El Sayed, K. A., 2002.  "Microbial Biocatalysis of Uncarine E, The Major Cat's Claw (Uncaria tomentosa) Alkaloid and Zingiberene of Ginger (Zingiber officinal)".  29th MALTO Medicinal Chemistry-Pharmacognosy Meeting at Monroe, Louisiana.
28. El Sayed, K. A., and Orabi, K. Y., 2002.  "Microbial Biocatalysis as an Efficient Tool to Generate Novel Natural Products." The 43rd Annual Meeting of The American Society of Pharmacognosy and Monroe Wall Symposium, New Brunswick, New Jersey.
29. Sawant, S., El Sayed, K. A., 2003.  "Halogenation of the bioactive marine natural product sarcophine."  30th MALTO Medicinal Chemistry-Pharmacognosy Meeting, Little Rock, Arkansas.
30. Miller, J., Sylvester, P., El Sayed, K. A., 2003.  "Biocatalysis studies of palm oil a-tocopherol and a-tocotrienol".  30th MALTO Medicinal Chemistry-Pharmacognosy Meeting.  Little Rock, Arkansas
31. Yacoub, S., El Sayed, K. A., 2003.  "Chemical transformation studies of mitraphylline and uncarine C, the major Cat's Claw alkaloids".  30th MALTO Medicinal Chemistry-Pharmacognosy Meeting, Little Rock,  Arkansas.
32. Sawant, S., Yacoub, S., El Sayed, K. A., 2003.  Toward enhancing natural products structure and bioactivity ranges:  Semisynthetic studies of the marine natural products sarcophine and uncarine c and mitraphylline, the major Cat's Claw alkaloids.  The 44th Annual Meeting of The American Society of Pharmacognosy, and Monroe Wall Symposium, Chapel Hill, North Carolina.
33. Sawant, S., El Sayed, K. A., 2003.  Novel bioactive halogenated and rearranged semisynthetic derivatives of the marine natural product sarcophine.  The 44th Annual Meeting of The American Society of Pharmacognosy, and Monroe Wall Symposium, Chapel Hill, North Carolina.
34. Sawant, S. S.,  Sylvester, P. W., Avery, M.A., Desai, P., Youssef, D. T. A., El Sayed, K. A., April 2004.  Semisynthetic studies on the anticancer diterpene cembranoid  sarcophine.  4th Student Research Symposium.  ULM, Monroe, LA and 31st MALTO Medicinal Chemistry-Pharmacognosy Meeting, May 2004, Memphis, TN.
35. Elsayed, R. K., El Sayed, K. A., Rainey, F., April, 2004.  Bioactive aromatic nitrogenated secondary metabolites from the marine derived bacterium Bacillus cereus.  4th Students Research Symposium, ULM, Monroe, LA and 31st MALTO Medicinal Chemistry-Pharmacognosy Meeting, May 2004, Memphis, TN.
36. Yacoub,  S., El Sayed, K. A., Halaweish, F., Huntimer, E. Chemical and microbial transformation studies of the bioactive marine natural products sipholane triterpenes.  4th Student Research Symposium, ULM, Monroe, LA, April, 2004 and 31st MALTO Medicinal Chemistry-Pharmacognosy Meeting, May 2004,  Memphis, TN.
37. El-Malah, Y., Youssef, D. T. A., El Sayed, K. A. Semisynthetic studies on the marine-derived macrolide latrunculin B. May 2004, 31st MALTO Medicinal Chemistry-Pharmacognosy Meeting, Memphis, TN.
38. Sawant, S., Sylvester, P. W., Avery, M. A., Desai, P., Youssef, D. T. A., El Sayed, K. A., 2004. Anticancer semisynthetic derivatives of cembranoid diterpene sarcophine.  International Congress on Natural Products Research, Phoenix, AZ.
39. Yacoub, S., El Sayed, K. A., Halaweish, F., Huntimer, E., 2004.  Chemical and microbial transformation studies of the bioactive marine natural products sipholane triterpenes.  International Congress on Natural Products Research, Phoenix, AZ.
40. Sawant, S., Yacoub, S., El-Malah, Y., Elnagdy, H., Sylvester, P.W., Gilbert, C., Youssef, D. T. A., Avery, M. A., Desai, P., Halaweish, F., Huntimer, E., El Sayed, K. A., 2004.  Optimization of anticancer marine natural products:  Chemical and microbial transformation studies of latrunculin B., sarcophine, and sipholane triterpenes.  International Congress on Natural Products Research, Phoenix, AZ
41. El Sayed, K. A., Sawant, S., Marchetti, D., Latrunculins revisited:  New natural and semisynthetic bioactive latrunculins.  LBRN, 3rd Annual Retreat, Lafayette, LA, February, 2005.
42. Sawant, S., Barbo, A., Bhandare, R., Sylvester, P., El Sayed, K. A. Optimization of anticancer marine natural products using biocatalytic and semisynthetic transformations.  North Louisiana Partnership for Innovation Regional Research Day, Shreveport, LA , April 2005.
43. Barbo, A., Sawant, S., Youssef, D., El Sayed, K. A. Latrunculins revisited:  New semisynthetic bioactive latrunculins.  5th Annual Student Research Symposium, ULM, Monroe, LA  April 27, 2005 (Second place winner, Undergraduate student poster).
44. McBride, M., McBride, T., El Sayed, K. A. Bioconversion Studies of the Bioactive Marine Sesterterpene Palinurin.  5th Annual Student Research Symposium, ULM, Monroe, LA  April 27, 2005 (Second place winner, Undergraduate student poster)
45. Bhandare, R., Mayer, A., El Sayed, K. A., Optimization of anti-inflammatory curcuphenols using chemical modifications.  5th Annual Student Research Symposium, ULM, Monroe, LA, April 27, 2005.
46. Sawant, S., Sylvester, P., Avery, M., Desai, P., Youssef,  D., Mayer, A., El Sayed, K. A. Development of Bioactive Leads from the Red Sea Soft Coral Sarophyton glaucum Cembranoids.  5th Annual Student Research Symposium, ULM, Monroe, LA, April 27, 2005.  (First place winner, graduate student podium)
47. Sawant, S., Sylvester, P., Avery, M., Desai, P., Youssef, D., El Sayed, K. A.  Semisynthetic and biocatalytic studies of cembranoids from the Red Sea soft coral Sarcophyton glaucum.  32nd MALTO Medicinal Chemistry-Pharmacognosy Meeting, Oxford, MS, May 2005.
48. Bhandare, R., El Sayed, K., Synthesis and semisynthetic studies of the bioactive marine natural sesquiterpene curcuphenol.  32nd MALTO Medicinal Chemistry-Pharmacognosy Meeting, Oxford, MS, May 2005.
49. Barbo, A., Sawant, S., Youssef, D., El Sayed, K. A.  Latrunculins revisited:  New natural and semisynthetic bioactive latrunculins.  46th Annual Meeting of the American Society of Pharmacognosy, July 2005.  Oregon State University, Corvallis, Oregon.
50. El Sayed, K., Galal, A., Yacoub, S., Huntimer, E., Halaweish, F. Biocatalytic and semisynthetic optimization of the antiangiogenic and anti-inflammatory marine sipholane triterpenes.  46th Annual Meeting of the American Society of Pharmacognosy.  July 2005, Oregon State University, Corvallis, Oregon.
51. Sawant, S., Sylvester, P., Avery, M., Desai, P., Youssef, D., El Sayed, K. Semisynthetic and biocatalytic studies of cembranoids from the Red Sea soft coral Sarcophyton glaucum.  46th Annual Meeting of the American Society of Pharmacognosy.  July 2005.  Oregon State University, Corvallis, Oregon.
52. Bhandare, R., Mayer, A., El Sayed, K. Synthesis and semisynthetic studies of the bioactive marine natural sesquiterpene curcuphenol.  46th Annual Meeting of the American Society of Pharmacognosy, July 2005.  Oregon State University, Corvallis, Oregon.
53. Sawant, S., Barbo, A., Brode, R., Yousef, M., Jain, S., Youssef, D., Bagaley, D., Rainey, F., Marchetti, D., El Sayed, K. Novel marine-derived antibiotic and anticancer leads.  Annual Louisiana Biomedical Research Network Meeting.  February 10-12, 2006.  Baton Rouge, LA.
54. Barbo, A., Bagaley, D., Rainey, F. A., El Sayed, K.A., A study of symbiotic microorganisms associated with the Red Sea sponges Negombata magnifica and Siphonochalina siphonella.  Marine Natural Products Gordon Research Conference, February 26-March 2, 2006, Ventura, CA.
55. Prestridge, J., Yousaf, M., Wali, V., Sylvester, P., El Sayed, K., Steffen, R., Mueller, W. Semisynthetic Studies on the Anticancer Tobacco Cembranoids. North Louisiana Partnership for Innovation Regional Research Day, Shreveport, Louisiana, May 1, 2006.
56. Prestridge, J., Phadnis, A., Yousaf, M., Wali, V., Sylvester, P., El Sayed, K. Semisynthetic Studies of the Anticancer Tobacco Cembranoid (1S,2E,4R,6R,7E,11E)-2,7,11-Cembratriene-4,6-diol. 6th ULM Student Research Symposium, April 26, 2006.
57. Jain, S., Youssef, D., El Sayed, K.  Study of the Bioactive Marine Natural Products Triterpenoid Sipholanes. 6th ULM Student Research Symposium, April 26, 2006.
58. Barbo, A., Brode, R., Yacoub, S., Bagaley, D., Rainey, F., El Sayed, K. A Study of the Red Sea Sponge Siphonochalina siphonella:  Biocatalysis of Sipholenol A and Bioactive Symbiotic Bacterial Secondary Metabolites. 6th ULM Student Research Symposium, April 26, 2006
59. Sawant, S., Youssef, D., Sylvester, S., Marchetti, D., El Sayed, K. Antimetastatic, Semisynthetic, and Biocatalytic Studies of Marine Cembranoids. 6th ULM Student Research Symposium, April 26, 2006.
60. El Sayed, K., Phadnis, A., Yousaf, M., Prestridge, J., Sawant, S., Wali, V., Sylvester P. Biocatalytic and semisynthetic studies of anticancer tobacco cembranoids. North Louisiana Partnership for Innovation Regional Research Day, Shreveport, Louisiana, May 1, 2006.
61. Sawant, S., Youssef, D., Sylvester, S., Marchetti, D., El Sayed, K. Towards optimizing anticancer terpenes from the Red Sea Soft Coral Sarcophyton glaucum North Louisiana Partnership for Innovation Regional Research Day, Shreveport, Louisiana, May 1, 2006.
62. Jain, S., Barbo, A., Youssef, D., El Sayed, K.  Chemical and biocatalytic transformation studies of the Bioactive Marine-Derived triterpenoid sipholanes. North Louisiana Partnership for Innovation Regional Research Day, Shreveport, Louisiana, May 1, 2006.
63. El Sayed, K., Yousaf, M., Prestridge, J., Sawant, S., Wali, V., Sylvester, P., Steffen, R., Mueller, W. Biocatalytic and semisynthetic studies of anticancer tobacco cembranoids. 47th Annual Meeting of the American Society of Pharmacognosy, August 5-9, 2006, Arlington, Virginia.
64. Sawant, S., Youssef, D., Sylvester, S., Marchetti, D., El Sayed, K. Towards optimizing anticancer terpenes from the Red Sea Soft Coral Sarcophyton glaucum. 47th Annual Meeting of the American Society of Pharmacognosy, August 5-9, 2006, Arlington, Virginia.
65. H Shallal, K El Sayed. Computer-assisted design of anticancer marine macrolide latrunculins. Annual Meeting South Central Chapter of the Society of Toxicology, October 12-13, 2006, Monroe, Louisiana.
66. S. Jain, A. Barbo, S. Yacoub, A. Shirode, K.A. El Sayed, and P.W. Sylvester. Biocatalytic study of bioactive marine natural products: Triterpenoid sipholanes. Annual Meeting South Central Chapter of the Society of Toxicology, October 12-13, 2006, Monroe, Louisiana.
67. S Laphookhieo, I Famakinwa, M Yousaf, A Shirode, V Wali, P Sylvester and K El Sayed. Biocatalytic and semisynthetic optimization of the anticancer tobacco cembranoids. Annual Meeting South Central Chapter of the Society of Toxicology, October 12-13, 2006, Monroe, Louisiana.
68. El Sayed KA. Anti-invasive and antiangiogenic marine natural products. First Kuwait Pharmaceutical Sciences Annual Meeting, Kuwait, December 11-14, 2006, Kuwait. (Invited Keynote Speaker).
69. El Sayed KA. Anticancer marine natural products. 5th Louisiana Biomedical Research Network Meeting, January 26-28, 2007, Bossier City, Louisiana.
70. Mudit M, Prestridge J, A. Muralidharan, Thomas S, Shah G, El Sayed K. Anti-invasive hydantoins from the Red Sea sponge Hemimycale Arabica. 5th Louisiana Biomedical Research Network Meeting, January 26-28, 2007, Bossier City, Louisiana.
71. El Sayed KA, Shallal H, Mudit M, Prestridge J, A. Muralidharan, Thomas S, Shah G. Marine natural products are potential source for novel drugs for the treatment of metastatic prostate cancer. American Association for Cancer Research Annual Meeting, April 14-18, 2007, Los Angeles California.
72. Shi Z, Jain S, Kim I, Peng XX, Abraham I, Fu L, Youssef DTA, El Sayed KA, Ambudkar S, Chen ZS. Sipholenol A, a marine-derived sipholane triterpene, potently reverse P-glycoprotein mediated MDR in cancer cells. American Association for Cancer Research Annual Meeting, April 14-18, 2007, Los Angeles California.
73. Mudit Mudit, Anbalagan Muralidharan, Shibu Thomas, Girish Shah, Khalid El Sayed. Anti-invasive hydantoins from the Red Sea sponge Hemimycale arabica. ULM 7th Annual Student Research Symposium. April 18, 2007, Monroe, Louisiana.
74. Sandeep Jain, Amit Shirode, Ashley Barbo, Zhi Shi, Zhe-Sheng Chen, Diaa T.A. Youssef, Paul Sylvester, Khalid El Sayed. Anticancer potential of sipholane triterpenoids from the marine sponge Callyspongia siphonella. ULM 7th Annual Student Research Symposium. April 18, 2007, Monroe, Louisiana
75. Ahmed Orabi, Paul Sylvester, Vikram Wali, Khalid El Sayed. Chemistry and pharmacology of palm oil tocotrienol rich fraction. The 34th Annual MALTO Medicinal Chemistry-Pharmacognosy Meeting, May 20-22, 2007, Monroe, Louisiana.
76. Sandeep Jain, Zhi Shi, Zhe-Sheng Chen, Khalid El Sayed. Reversal of P-glycoprotein-mediated multidrug resistance by sipholane triterpenoids. The 34th Annual MALTO Medicinal Chemistry-Pharmacognosy Meeting, May 20-22, 2007, Monroe, Louisiana.
77. Mudit Mudit, Anbalagan Muralidharan, Shibu Thomas, Girish Shah, Khalid El Sayed. Isolation and structure-activity relationship study of the marine-derived phenylmethylenehydantoins. The 34th Annual MALTO Medicinal Chemistry-Pharmacognosy Meeting, May 20-22, 2007, Monroe, Louisiana.
78. Hassan Shallal, Paige Newman, Anbalagan Muralidharan, Shibu Thomas, Girish Shah, Diaa Youssef, Khalid El Sayed. Semisynthetic optimization of the anti-invasive marine macrolide latrunculins. The 34th Annual MALTO Medicinal Chemistry-Pharmacognosy Meeting, May 20-22, 2007, Monroe, Louisiana.
79. Ahmed Orabi, Paul Sylvester, Vikram Wali, Khalid El Sayed. Biocatalytic studies of the anticancer palm oil tocotrienols and tocopherols. 48th Annual Meeting of the American Society of Pharmacognosy, July 14-18, 2007, Portland, Maine.
80. Mudit Mudit, Anbalagan Muralidharan, Shibu Thomas, Girish Shah, Khalid El Sayed. Isolation and synthesis of potential lead compounds from the Red Sea sponge Hemimycale arabica. 48th Annual Meeting of the American Society of Pharmacognosy, July 14-18, 2007, Portland, Maine.
81. Sandeep Jain, Zhi Shi, Zhe-Sheng Chen, Khalid El Sayed. Reversal of P-glycoprotein-mediated multidrug resistance by sipholane triterpenoids. 48th Annual Meeting of the American Society of Pharmacognosy, July 14-18, 2007, Portland, Maine.
82. Khalid El Sayed, Mohamed Khanfar, Mudit Mudit, Hany Baraka, Bhushan Awate, Girish Shah.Discovery, Design, Synthesis, and Development of New Leads for Treatment of Metastatic Prostate Cancer Inspired by Marine Natural Products. 6th Louisiana Biomedical Research Network Meeting, January 25-27, 2008, New Orleans, Louisiana.
83. Hany Baraka, John Williams, Bhushan Awate, Girish Shah, Khalid El Sayed Anti-invasive Diterpenes for Treatment of Metastatic Prostate Cancer. 6th Louisiana Biomedical Research Network Meeting, January 25-27, 2008, New Orleans, Louisiana.
84. Sandeep Jain, Zhi-shi, Zhe-Sheng Chen, Khalid El Sayed. Bioactive Sipholane Triterpenoids from the Red Sea Sponge Callyspongia siphonella.6th Louisiana Biomedical Research Network Meeting, January 25-27, 2008, New Orleans, Louisiana.
85. Mudit Mudit, Mohamed Khanfar, Bhushan Awate, Girish Shah, Khalid El Sayed. Optimization of Novel. Marine-Derived Leads as Potential Treatment for Metastatic Prostate Cancer. 6th Louisiana Biomedical Research Network Meeting, January 25-27, 2008, New Orleans, Louisiana.
86. Mohamed Khanfar, Mudit Mudit, Bhushan Awate, Girish Shah, Khalid El Sayed. Computer-Assisted Design of Novel Inhibitors for Metastatic Prostate Cancer. 6th Louisiana Biomedical Research Network Meeting, January 25-27, 2008, New Orleans, Louisiana.
87. El Sayed Khalid, Khanfar Mohamed, Muralidharan A., Awate Bhushan, Youssef Diaa, Girish Shah. Targeting cytoskeleton signaling in cancer: Rationale design of semisynthetic latrunculin analogs as inhibitors for metastatic prostate cancer. American Association for Cancer Research Annual Meeting, April 12-16, 2008, Los Angeles California.
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