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      Isolation and Neuroprotective Activity of Phenolic Derivatives from the Marine-Derived Fungus Penicillium janthinellum

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          Abstract

          A new phenolic compound, 6-(2-acetyl-3,5-dihydroxybenzyl)-4-hydroxy-3-methyl-2 H-pyran-2-one ( 1), along with other six known phenolic derivatives ( 27), were isolated from the mangrove rhizosphere fungus Penicillium janthinellum HK1-6 cultured in potato dextrose broth medium containing 30 g L −1 of natural sea salt. The structure of the new compound ( 1) was elucidated by comprehensive analysis of spectroscopic data including 1D and 2D NMR spectra. The proposed biosynthetic pathway of compound 1 was also studied in this research. Interestingly, a brominated phenolic derivative, aryl bromide (compound 8), was obtained from this fungal strain cultured in medium containing 30 g L −1 of NaBr instead of natural sea salt. Compound 8 is proposed as a new natural product and formed through bromination of compound 7 when the fungus was cultured with NaBr. The neuroprotective effect of compound 1 on oxygen-glucose deprivation (OGD)-induced injury was investigated in rat spinal cord astrocytes. MTT assay demonstrated that compound 1 can attenuate OGD-induced cell viability loss in rat spinal cord astrocytes.

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          Author and article information

          Journal
          JOUC
          Journal of Ocean University of China
          Science Press and Springer (China )
          1672-5182
          02 May 2020
          01 June 2020
          : 19
          : 3
          : 700-706
          Affiliations
          1Marine Science & Technology Institute, College of Environmental Science & Engineering, Yangzhou University, Yangzhou 225127, China
          2Key Laboratory of Marine Drugs of Ministry of Education of China, School of Medicine and Pharmacy, Ocean University of China, Qingdao 266003, China
          3Laboratory for Marine Drugs and Bioproducts, Qingdao National Laboratory for Marine Science and Technology, Qingdao 266237, China
          4Institute of Translational Medicine, Medical College, Yangzhou University, Yangzhou 225001, China
          5Institute of Evolution & Marine Biodiversity, Ocean University of China, Qingdao 266003, China
          Author notes
          *Corresponding author: CHEN Min, E-mail: dieying0719@ 123456163.com ; WANG Changyun, E-mail: changyun@ 123456ouc.edu.cn
          Article
          s11802-020-4286-7
          10.1007/s11802-020-4286-7
          Copyright © Ocean University of China, Science Press and Springer-Verlag GmbH Germany 2020.

          The copyright to this article, including any graphic elements therein (e.g. illustrations, charts, moving images), is hereby assigned for good and valuable consideration to the editorial office of Journal of Ocean University of China, Science Press and Springer effective if and when the article is accepted for publication and to the extent assignable if assignability is restricted for by applicable law or regulations (e.g. for U.S. government or crown employees).

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          Self URI (journal-page): https://www.springer.com/journal/11802

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