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Year : 2011  |  Volume : 3  |  Issue : 3  |  Page : 160-165

Antioxidant, cytotoxic, antitumor, and protective DNA damage metabolites from the red sea brown alga Sargassum sp

1 Department of Chemistry, Faculty of Science, King Abdul Aziz University, P. O. 80203, Jeddah 21589, Saudi Arabia
2 Department of Marine Chemsitry, Faculty of Marine Sciences, King Abdulaziz University, Jeddah 21589, P O 80207, Saudi Arabia
3 Tissue Engineering Lab., Faculty of Dentistry, Alexandria University, Alexandria, Egypt
4 Department of Pharmacognosy, Faculty of Pharmacy, Mansoura University, Mansoura 35516, Egypt

Correspondence Address:
Seif-Eldin N Ayyad
Faculty of Sciences, King Abdulaziz University, Jeddah
Saudi Arabia
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Source of Support: None, Conflict of Interest: None

DOI: 10.4103/0974-8490.85000

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Background: Macroalgae can be viewed as a potential antioxidant and anti-inflammatory sources owing to their capability of producing compounds for its protection from environmental factors such as heat, pollution, stress, oxygen concentration, and UV radiations. Objective: To isolate major compounds which are mainly responsible for the pharmacological activity of brown alga under investigation, Sargassum sp. Materials and Methods: Algal material was air dried, extracted with a mixture of organic solvents, and fractionated with different adsorbents. The structures of obtained pure compounds were elucidated with different spectroscopic techniques, and two pure materials were tested for protection of DNA from damage, antioxidant, antitumor, and cytotoxicity. Results: Four pure compounds were obtained, of which fucosterol (1) and fucoxanthin (4) were tested; it was found that fucoxanthin has strong antioxidant and cytotoxicity against breast cancer (MCF-7) with IC 50 = 11.5 ΅g/ml. Conclusion: The naturally highly conjugated safe compound fucoxanthin could be used as antioxidant and as an antitumor compound.

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