Acetylcholine esterase inhibitors and melanin synthesis inhibitors from Salvia officinalis

Amal Sallam, Amira Mira, Ahmed Ashour, Kuniyoshi Shimizu

Research output: Contribution to journalArticle

10 Citations (Scopus)

Abstract

Background Salvia officinalis is a traditionally used herb with a wide range of medicinal applications. Many phytoconstituents have been isolated from S. officinalis, mainly phenolic diterpenes, which possess many biological activities. Purpose This study aimed to evaluate the ability of the phenolic diterpenes of S. officinalis to inhibit acetylcholine esterase (AChE) as well as their ability to inhibit melanin biosynthesis in B16 melanoma cells. Methods The phenolic diterpenes isolated from the aerial parts of S. officinalis were tested for their effect on melanin biosynthesis in B16 melanoma cell lines. They were also tested for their ability to inhibit AChE using Ellman's method. Moreover, a molecular docking experiment was used to investigate the binding affinity of the isolated phenolic diterpenes to the amino acid residues at the active sites of AChE. Results Seven phenolic diterpenes―sageone, 12-methylcarnosol, carnosol, 7b-methoxyrosmanol, 7a-methoxyrosmanol, isorosmanol and epirosmanol―were isolated from the methanolic extract of the aerial parts of S. officinalis. Isorosmanol showed a melanin-inhibiting activity as potent as that of arbutin. Compounds 7a-methoxyrosmanol and isorosmanol inhibited AChE activity by 50% and 65%, respectively, at a concentration of 500 µM. Conclusions The results suggest that isorosmanol is a promising natural compound for further studies on development of new medications which might be useful in ageing disorders such as the declining of cognitive functions and hyperpigmentation.

Original languageEnglish
Pages (from-to)1005-1011
Number of pages7
JournalPhytomedicine
Volume23
Issue number10
DOIs
Publication statusPublished - Sep 15 2016

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Salvia officinalis
Melanins
Esterases
Diterpenes
Acetylcholine
Aptitude
Experimental Melanomas
Arbutin
Hyperpigmentation
Cognition
Catalytic Domain
Amino Acids
Cell Line

All Science Journal Classification (ASJC) codes

  • Molecular Medicine
  • Pharmacology
  • Pharmaceutical Science
  • Drug Discovery
  • Complementary and alternative medicine

Cite this

Acetylcholine esterase inhibitors and melanin synthesis inhibitors from Salvia officinalis. / Sallam, Amal; Mira, Amira; Ashour, Ahmed; Shimizu, Kuniyoshi.

In: Phytomedicine, Vol. 23, No. 10, 15.09.2016, p. 1005-1011.

Research output: Contribution to journalArticle

Sallam, Amal ; Mira, Amira ; Ashour, Ahmed ; Shimizu, Kuniyoshi. / Acetylcholine esterase inhibitors and melanin synthesis inhibitors from Salvia officinalis. In: Phytomedicine. 2016 ; Vol. 23, No. 10. pp. 1005-1011.
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