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Marine Drugs, Volume 15, Issue 11

November 2017 - 34 articles

Cover Story: Shown on the cover is Agelas clathrodes, also known as the orange elephant ear sponge. This organism is representative of the 18 other species covered in our review. Agelas sponges have been popular for scientific study because, as can be seen in the cover photo, they stand out in their environment. Agelas species can be found on coral reefs throughout Oceania. Remarkably, there has been sustained study, spanning last 47 years, of their structurally diverse metabolites. We believe that the biosynthetic products isolated from Agelas are truly fascinating and while perusing our review you will be able to scan more than 291 structures, many of which possess hetero atom diversity along with powerful bioactivity properties. (Cover photo by Clay Wiseman, all rights reserved) View this paper
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Articles (34)

  • Article
  • Open Access
18 Citations
5,947 Views
13 Pages

An Insight into Sargassum muticum Cytoprotective Mechanisms against Oxidative Stress on a Human Cell In Vitro Model

  • Susete Pinteus,
  • Marco F. L. Lemos,
  • Joana Silva,
  • Celso Alves,
  • Agnieszka Neugebauer,
  • Rafaela Freitas,
  • Adriana Duarte and
  • Rui Pedrosa

10 November 2017

Sargassum muticum is a brown seaweed with strong potential to be used as a functional food ingredient, mainly due to its antioxidant properties. It is widely used in traditional oriental medicine for the treatment of numerous diseases. Nevertheless,...

  • Review
  • Open Access
95 Citations
11,586 Views
30 Pages

Structural Diversity, Biological Properties and Applications of Natural Products from Cyanobacteria. A Review

  • Sayed Asmat Ali Shah,
  • Najeeb Akhter,
  • Bibi Nazia Auckloo,
  • Ishrat Khan,
  • Yanbin Lu,
  • Kuiwu Wang,
  • Bin Wu and
  • Yue-Wei Guo

10 November 2017

Nowadays, various drugs on the market are becoming more and more resistant to numerous diseases, thus declining their efficacy for treatment purposes in human beings. Antibiotic resistance is one among the top listed threat around the world which eve...

  • Review
  • Open Access
44 Citations
9,673 Views
29 Pages

Bioactive Secondary Metabolites from the Marine Sponge Genus Agelas

  • Huawei Zhang,
  • Menglian Dong,
  • Jianwei Chen,
  • Hong Wang,
  • Karen Tenney and
  • Phillip Crews

8 November 2017

The marine sponge genus Agelas comprises a rich reservoir of species and natural products with diverse chemical structures and biological properties with potential application in new drug development. This review for the first time summarized seconda...

  • Article
  • Open Access
32 Citations
5,499 Views
14 Pages

7 November 2017

In this study, the immunomodulatory activities of Apostichopus japonicus glycosaminoglycan (AHG) on the nature killer (NK) cells, cytotoxic T lymphocytes (CTLs) and cyclophosphamide (CY)-treated mice were investigated. After stimulation with multiple...

  • Review
  • Open Access
67 Citations
8,743 Views
15 Pages

7 November 2017

Classic hypotheses of Alzheimer’s disease (AD) include cholinergic neuron death, acetylcholine (ACh) deficiency, metal ion dynamic equilibrium disorder, and deposition of amyloid and tau. Increased evidence suggests neuroinflammation and oxidative st...

  • Article
  • Open Access
46 Citations
6,012 Views
10 Pages

Cytotoxic and Antibacterial Compounds from the Coral-Derived Fungus Aspergillus tritici SP2-8-1

  • Weiyi Wang,
  • Yanyan Liao,
  • Chao Tang,
  • Xiaomei Huang,
  • Zhuhua Luo,
  • Jianming Chen and
  • Peng Cai

7 November 2017

Three novel compounds, 4-methyl-candidusin A (1), aspetritone A (2) and aspetritone B (3), were obtained from the culture of a coral-derived fungus Aspergillus tritici SP2-8-1, together with fifteen known compounds (4–18). Their structures, including...

  • Article
  • Open Access
34 Citations
6,993 Views
14 Pages

Evidence for a Saponin Biosynthesis Pathway in the Body Wall of the Commercially Significant Sea Cucumber Holothuria scabra

  • Shahida Akter Mitu,
  • Utpal Bose,
  • Saowaros Suwansa-ard,
  • Luke H. Turner,
  • Min Zhao,
  • Abigail Elizur,
  • Steven M. Ogbourne,
  • Paul Nicholas Shaw and
  • Scott F. Cummins

7 November 2017

The sea cucumber (phylum Echinodermata) body wall is the first line of defense and is well known for its production of secondary metabolites; including vitamins and triterpenoid glycoside saponins that have important ecological functions and potentia...

  • Feature Paper
  • Article
  • Open Access
37 Citations
5,153 Views
11 Pages

7 November 2017

Six kinds of chitinous materials have been used as sole carbon/nitrogen (C/N) sources for producing α-glucosidase inhibitors (aGI) by Paenibacillus sp. TKU042. The aGI productivity was found to be highest in the culture supernatants using demineraliz...

  • Article
  • Open Access
10 Citations
5,380 Views
16 Pages

4 November 2017

AS1041 is a novel synthesized anthraquinone lactone derivative of marine natural compound aspergiolide A (ASP-A) with new structure skeleton and marked cytotoxicity in cancer cells. To study its cytotoxicity in detail, we evaluated its activity on hu...

  • Article
  • Open Access
25 Citations
5,227 Views
17 Pages

Degradation of Polysaccharides from Grateloupia filicina and Their Antiviral Activity to Avian Leucosis Virus Subgroup J

  • Yuhao Sun,
  • Xiaolin Chen,
  • Ziqiang Cheng,
  • Song Liu,
  • Huahua Yu,
  • Xueqin Wang and
  • Pengcheng Li

3 November 2017

In this study, polysaccharides from Grateloupia filicinia (GFP) were extracted and several low molecular weight (Mw) G. filicina polysaccharides (LGFPs) were prepared by the hydrogen peroxide (H2O2) oxidation method. Additionally, the effect of diffe...

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Mar. Drugs - ISSN 1660-3397