Publications by authors named "William G Aalbersberg"

3 Publications

  • Page 1 of 1

Investigations of the marine flora and fauna of the Fiji Islands.

Nat Prod Rep 2012 Dec 14;29(12):1424-62. Epub 2012 Sep 14.

Centre for Drug Discovery and Conservation, Institute of Applied Sciences, The University of the South Pacific, Suva, Fiji.

Over the past 30 years, approximately 140 papers have been published on marine natural products chemistry and related research from the Fiji Islands. These came about from studies starting in the early 1980s by the research groups of Crews at the University of California Santa Cruz, Ireland at the University of Utah, Gerwick from the Scripps Institution of Oceanography, the University of California at San Diego and the more recent groups of Hay at the Georgia Institute of Technology (GIT) and Jaspars from the University of Aberdeen. This review covers both known and novel marine-derived natural products and their biological activities. The marine organisms reviewed include invertebrates, plants and microorganisms, highlighting the vast structural diversity of compounds isolated from these organisms. Increasingly during this period, natural products chemists at the University of the South Pacific have been partners in this research, leading in 2006 to the development of a Centre for Drug Discovery and Conservation (CDDC).
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http://dx.doi.org/10.1039/c2np20055dDOI Listing
December 2012

Naseseazines A and B: a new dimeric diketopiperazine framework from a marine-derived actinomycete, Streptomyces sp.

Org Lett 2009 Sep;11(17):3862-5

Institute for Molecular Bioscience, The University of Queensland, St. Lucia, Queensland 4072, Australia.

Chemical analysis of a Streptomyces sp. (CMB-MQ030) isolated from a Fijian marine sediment yielded two new diketopiperazines, naseseazines A and B (1, 2), featuring a new dimeric framework. Structures were determined by detailed spectroscopic analysis and C(3) Marfey's analysis.
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http://dx.doi.org/10.1021/ol901466rDOI Listing
September 2009

Isolation and identification of a potent antimalarial and antibacterial polyacetylene from Bidens pilosa.

Planta Med 2009 May 4;75(6):624-8. Epub 2009 Mar 4.

Showa Pharmaceutical University, Higashi-tamagawagakuen, Machida, Tokyo 194-8543, Japan.

Diseases caused by malaria parasites and pathogenic bacteria were thought to be on the brink of eradication in the 1950-1960s, but they have once again become a serious threat to mankind as a result of the appearance of multidrug resistant strains. The spread of these multidrug resistant organisms has prompted a worldwide search for new classes of effective antimalarial and antibacterial drugs. Natural products have been recognized as highly important candidates for this purpose. Our attention has focused on the herbal plant Bidens pilosa, a weed common throughout the world, as one of the target plants in the search for new active compounds, owing to its empirical use in the treatment of infectious diseases and to pharmaco-chemical studies of its crude extract. We report the isolation of two new compounds of B. pilosa, the linear polyacetylenic diol 1 and its glucoside 2 which have previously been isolated from different plants. Compound 1 exhibited highly potent antimalarial and antibacterial properties in vitro as well as potent antimalarial activity by way of intravenous injection in vivo, thereby representing a promising new class of drugs potentially effective in the treatment of malarial and bacterial diseases. We suspect that discovery of these compounds in B. pilosa in appreciable quantity is because the Fijian tradition of using the fresh plant for extraction rather than the Asian tradition of using dried plants (1 is unstable in the dried state) was followed.
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http://dx.doi.org/10.1055/s-0029-1185377DOI Listing
May 2009
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