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Journal of Applied Phycology

, Volume 30, Issue 6, pp 3233–3241 | Cite as

The tropical carrageenophyte Kappaphycus alvarezii extract promotes axodendritic maturation of hippocampal neurons in primary culture

  • Gabriel Tirtawijaya
  • Md. Mohibbullah
  • Maria Dyah Nur Meinita
  • Il Soo Moon
  • Yong-Ki HongEmail author
8th Asian Pacific Phycological Forum

Abstract

Neurotrophic factors are essential to support neuronal development and to protect mature neurons from atrophy in neurodegenerative disorders. To investigate effects of the carrageenan-producing seaweed, Kappaphycus alvarezii, on the development and complexity of neuronal cytoarchitecture, ethanol extract of the seaweed was added to primary cultures of fetal rat hippocampal neurons. The neuronal morphology was observed under phase-contrast microscope and analyzed using ImageJ software. With an optimal concentration of 1 μg mL−1, the extract significantly increased axonal length, number of secondary axonal collateral branches, length of primary dendrites, and number of secondary dendritic branches by 58%, eightfold, 68%, and 2.6-fold, compared with control (p < 0.05). In Sholl’s analysis, the extract also significantly increased numbers of axodendritic intersections, branching points, and branching tips. It is assumed that several kinds of lipophilic compounds provide the neurotrophic activities to enhance neurites in a robust form. Thus, the K. alvarezii may be useful as a diet supplement or pharmaceuticals for people who are prone to neurological disorders.

Keywords

Axodendritic Hippocampal neuron Kappaphycus alvarezii Neurotrophic activity 

Notes

Funding information

This research was supported by the International Research Collaboration and International Publication Grant, Ministry of Research, Technology, and Higher Education, Republic of Indonesia.

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Copyright information

© Springer Science+Business Media B.V., part of Springer Nature 2018

Authors and Affiliations

  1. 1.Department of BiotechnologyPukyong National UniversityBusanRepublic of Korea
  2. 2.Faculty of Fisheries and Marine ScienceJenderal Soedirman UniversityPurwokertoIndonesia
  3. 3.Department of Anatomy, College of MedicineDongguk UniversityGyeongjuRepublic of Korea

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