Cephalopod Studies for Human Wellbeing

Discussion in 'Marine Conservation' started by DWhatley, Sep 7, 2013.

  1. DWhatley

    DWhatley Cthulhu Staff Member Moderator

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    As we become more aware that our oceans are not boundless and need to be cared for, more and more studies are being done to see what nature's underwater pharmacy contains. Here is the first I have thought to record, please add discoveries as you find them.

    MOLECULAR CHARACTERIZATION AND ANTIMICROBIAL ACTIVITY OF OCTOPUS AEGINA AND OCTOPUS DOLFUSII IN GULF OF MANNAR COAST
    S Monolisha, AE Mani, J Patterson, JKP Edward August 2013

    pdf available in the link

    Abstract

    Antibacterial activity and protein content was studied in two species of octopus belonging to the family Octopoda. The highest zone of inhibition of about 34mm and 28mm were obtained against Vibro parahaemolyticus and the protein content was 107.16 ug/L and 136.20 ug/L in Octopus dolfusii and Octopus aegina, respectively..SDS profile revealed bands of molecular weight of about 32.83 KDa to 72.36 KDa for both species. Conclusively, the factors analyzed proved that the sample species play an important role in chemicalj defensive mechanism against pathogens causing disease in human and fishes. This study paves a way for further pharmaceutical research against pathogenic bacterial strains producing valuable drugs.
     
  2. gjbarord

    gjbarord Sepia elegans Staff Member Moderator

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    Likewise, during my thesis I've become increasingly aware of many studies that may appear to focus on a species or specific location actually resonate with the bigger picture of marine conservation and what it means to humans. Hope to have more on this later! Greg
     
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  3. DWhatley

    DWhatley Cthulhu Staff Member Moderator

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    Inhibitory Activity of Euprymna stenodactyla and Octopus dollfushi Ink and Body Tissue Extracts Against Human Pathogenic (Histamine Producing) Bacteria 2013
    Paramasivam S 1 adayan, 2Sathya Thiyagarajanand 1Balachandar Balakrishnan

    Full (sort) PDF available using linked title.


    Abstract: Antibacterial activities of the ink and body tissue extracts of the cephalopods, Euprymna stenodactyla and Octopus dollfushi against histamine producing bacteria. Method: E. stenodactyla and Octopus dollfushi were assayed using methanol, ethanol, acetone and chloroform extracts and tested against selected human pathogenic and histamine producing Bacteria (HPB) Escherichia coli, Salmonella typhi, Klebsiella oxytoca, K. pneumonia, Vibrio parahaemolyticus, Aeromonas hydrophila, Pseudomonas aeruoginosa, Bacillus cereus and Staphylococcus sp. by agar well diffusion method. Result:
    Highest inhibitory activity was observed against
    P. aeruginosa in methanol ink extracts of E. stenodactyla and ethanol extracts of S. typhii. Ethanolic extracts of O. dollfushi showed highest inhibitory activity against V. parahaemolyticus and B. cereus in acetone extracts: These results suggest that the cephalopod ink extract can be used in the seafood processing industries to enhance the shelf life of sea foods and control the histamine fish poisoning.
     
  4. DWhatley

    DWhatley Cthulhu Staff Member Moderator

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    Uptake, transfer and elimination kinetics of paralytic shellfish toxins in common octopus (Octopus vulgaris) (subscription or purchase)
    Vanessa M. Lopes, Miguel Baptista, Tiago Repolho, Rui Rosa, Pedro Reis Costa

     
  5. DWhatley

    DWhatley Cthulhu Staff Member Moderator

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    Reclamation of Loligo duvauceli (Orbigny, 1848) Digestive Gland (Liver) Waste for the Extraction of Oil and its Lipid Composition
    Source: Journal of Biological Sciences . 2013, Vol. 13 Issue 7, p634-639. 6p.
    Author(s): Vairamani, S.; Sofia, V.; Sudharsan, S.; Vasanthkumar, S.; Ramasubramanian, V.; Madeswaran, P.; Srinivasan, A.; Shanmugam, A.

     
  6. DWhatley

    DWhatley Cthulhu Staff Member Moderator

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    An extreme biomimetic approach: hydrothermal synthesis of β-chitin/ZnO nanostructured composites
    Marcin Wysokowski,a Mykhailo Motylenko,b Hartmut Stöcker,c Vasilii V. Bazhenov,c Enrico Langer,c Anna Dobrowolska,d Katarzyna Czaczyk,d Roberta Galli,e Allison L. Stelling,f Thomas Behm,c Łukasz Klapiszewski,a Damian Ambrożewicz,a Magdalena Nowacka,a Serguei L. Molodtsov,c Barbara Abendroth,c Dirk C. Meyer,c Krzysztof J. Kurzydłowski,g Teofil Jesionowskia and Hermann Ehrlich*c



    Above my scientific reading level. My out-take on the abstract was that they used Sepia Officinalis Cuttlefish cells in an artificial substrate and baked in a test tube it at 158 F degrees to create a substance that could be used in a gram positive bacteria (like staph) fighting bandaid.
     
  7. DWhatley

    DWhatley Cthulhu Staff Member Moderator

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    Octopus visual system: A functional MRI model for detecting neuronal electric currents without a blood-oxygen-level-dependent confound
    Xia Jiang, Hanbing Lu, Shuichi Shigeno, Li-Hai Tan, Yihong Yang, Clifton W. Ragsdale, Jia-Hong Gao 2013 (subscription)
     
  8. DWhatley

    DWhatley Cthulhu Staff Member Moderator

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    Extraction, characterization and antioxidant property of chitosan from cuttlebone Sepia kobiensis (Hoyle 1885)
    Pasiyappazham Ramasamy, Namasivayam Subhapradha, Vairamani Shanmugam, Annaian Shanmugam 2013 (subscription)

     
  9. DWhatley

    DWhatley Cthulhu Staff Member Moderator

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    Morphofunctional characterization and antibacterial activity of haemocytes from Octopus vulgaris
    Luca Troncone, Emilia De Lisa, Carla Bertapelle, Antonio Porcellini, Paolo Laccettia, Gianluca Polese, Anna Di Cosmo 2014 (subscription)

     
  10. DWhatley

    DWhatley Cthulhu Staff Member Moderator

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    ANTICANCER PROPERTY OF PURIFIED FRACTION C2 OF CUTTLEFISH (Sepia pharaonis) INK ON CERVICAL CANCER CELLS
    V Priya Senan1, P. M. Sherief2 and J. Rjasekharan Nair3. 2013 (pdf available)

     
  11. DWhatley

    DWhatley Cthulhu Staff Member Moderator

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    NEUROGENESIS IN CEPHALOPODS: “ECO-EVO-DEVO” APPROACH IN THE CUTTLEFISH SEPIA OFFICINALIS (MOLLUSCA-CEPHALOPODA
    Sandra Navet, Sébastien Baratte, Yann Bassaglia, Aude Andouche, Auxane Buresi, Laure Bonnaud 2014 (PDF)

     
  12. DWhatley

    DWhatley Cthulhu Staff Member Moderator

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    Cone Snail Pain Killers Could be 100 Times As Effective As Morphine

    Cheating a bit here since you have to backup to Mollaska for the cephalopod relationship.

     
  13. DWhatley

    DWhatley Cthulhu Staff Member Moderator

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    Cephalopod Ink: Production, Chemistry, Functions and Applications
    Charles D. Derby 2014 (open access)

    Note by DWhatley: Nice overview of cephalopod ink, what we know about it, what we don't and where further research is needed. Don't be over intimidated with some of the chemistry if it is outside your education (as it is mine). There are many paragraphs written for the layman in addition to the more technical breakdowns. I have to admit I was totally amazed that this came from my Alma mater :grin:

     
    Last edited: May 17, 2014
  14. DWhatley

    DWhatley Cthulhu Staff Member Moderator

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    Squid Protein: Our Best Defense Against Chemical Weapons?
    Time June 17, 2014 P. Nash Jenkins

     
  15. DWhatley

    DWhatley Cthulhu Staff Member Moderator

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    Secretions from unusual venomous sources could unlock next wonder drug


     
  16. DWhatley

    DWhatley Cthulhu Staff Member Moderator

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    No fish tale: Squid 'teeth' could one day help with reconstructive surgery, study says

    Nanoconfined β-Sheets Mechanically Reinforce the Supra-Biomolecular Network of Robust Squid Sucker Ring Teeth
    Paul A. Guerette†, Shawn Hoon, Dawei Ding, Shahrouz Amini, Admir Masic, Vydianathan Ravi, Byrappa Venkatesh, James C. Weaver, and Ali Miserez

    [​IMG]

     
  17. DWhatley

    DWhatley Cthulhu Staff Member Moderator

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    A Drug to Fight Chemical Weapons
    July 19, 2014. By Niamh Ni Mhaoileoin

     
  18. DWhatley

    DWhatley Cthulhu Staff Member Moderator

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  19. DWhatley

    DWhatley Cthulhu Staff Member Moderator

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    Therapeutic effect of Sepia ink extract against invasive pulmonary aspergillosis in mice
    Sohair R. Fahmy, Enas M. Ali, Nevien S. Ahmed 2014 (full paper)

    .
     
  20. DWhatley

    DWhatley Cthulhu Staff Member Moderator

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    Materials Fabrication from Native and Recombinant Thermoplastic Squid Proteins
    Abdon Pena-Francesch, Sergio Florez, Huihun Jung, Aswathy Sebastian, Istvan Albert, Wayne Curtis, Melik C. Demirel 2014 (subscription)

     

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