Nuisance seaweed found to produce compounds with biomedical potential

By By Mario Aguilera | 26 May 2012

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A seaweed considered a threat to the healthy growth of coral reefs in Hawaii may possess the ability to produce substances that could one day treat human diseases, a new study led by scientists at Scripps Institution of Oceanography at UC San Diego has revealed.

An analysis led by Hyukjae Choi, a postdoctoral researcher in William Gerwick's laboratory at Scripps, has shown that the seaweed, a tiny photosynthetic organism known as a ''cyanobacterium,'' produces chemical compounds that exhibit promise as anti-inflammatory agents and in combatting bacterial infections.

The study is published in the May 25th issue of the journal Chemistry & Biology.

''In different arenas these compounds could be helpful, such as treating chronic inflammatory conditions for which we currently don't have really good medicines,'' said Gerwick, a professor of oceanography and pharmaceutical sciences at the Center for Marine Biotechnology and Biomedicine at Scripps and UC San Diego Skaggs School of Pharmacy and Pharmaceutical Sciences.

Scientists identified the ''nuisance'' organism in 2008 on the reefs directly adjacent to the National Park Pu'uhonua o H'onaunau off the Kona coast of Hawaii.

The cyanobacterium is believed to be native to Hawaii and is usually inconspicuous, said Jennifer Smith, a Scripps assistant professor in the Scripps Center for Marine Biodiversity and Conservation and a paper coauthor.

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