Planta Med 2001; 67(4): 360-361
DOI: 10.1055/s-2001-14316

© Georg Thieme Verlag Stuttgart · New York

Inhibitory Effects of Maesanin and Analogs on Arachidonic Acid Metabolizing Enzymes

Ehab A. Abourashed1 , Ilias Muhammad1 , Marion Resch3 , Rudolf Bauer3 , Farouk S. El-Feraly4 , Charles D. Hufford1, 2,*
  • 1 National Center for Natural Products Research, Research Institute of Pharmaceutical Sciences, University of Mississippi, University, Mississippi, U.S.A.
  • 2 Department of Pharmacognosy School of Pharmacy, University of Mississippi, University, Mississippi, U.S.A.
  • 3 Institute of Pharmaceutical Biology, University Düsseldorf, Düsseldorf, Germany
  • 4 Department of Pharmacognosy, College of Pharmacy, King Saud University, Riyadh, Saudi Arabia
Further Information

Publication History

June 21, 2000

August 19, 2000

Publication Date:
31 December 2001 (online)


The substituted 1,4-benzoquinone, maesanin (1), is a potent 5-lipoxygenase (5-LO) inhibitor present in the fruit of Maesa lanceolata Forssk. Thirteen natural, synthetic, semisynthetic, and microbially transformed analogs of 1 were tested for their in vitro inhibition of 5-lipoxygenase (5-LO) and cyclooxygenase-1 (COX-1). Maesanin was the most active 5-LO inhibitor. All other analogs were inactive or less active than the natural products as 5-LO inhibitors. None of the tested compounds was strongly active in the COX-1 inhibition assay.


Dr. Charles D. Hufford

University of Mississippi,

School of Pharmacy,


MS 38677



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