Composition, Anticholinesterase and Antipedicular Activities of Satureja capitata L. Volatile Oil

Author:

Jaradat Nidal1,Adwan Lina2,Zaid Abdel Naser1,K’aibni Shadi3,Arar Mohammad1

Affiliation:

1. Department of Pharmacy, Faculty of Medicine and Health Sciences, An-Najah National University, Nablus, 00970, State of Palestine

2. College of Pharmacy, Nursing and Health Professions, Birzeit University, Birzeit, 00970, State of Palestine

3. Center of Birzeit University Testing Laboratories, Birzeit University, Birzeit, 00970, State of Palestine

Abstract

AbstractThe emergence of resistance for antipedicular agents and the need of potent acetylcholinesterase (AChE) therapeutics for the treatment of a neurodegenerative disorder such as Alzheimer disease has led researchers to the exploration of new therapeutic alternatives such as natural volatile oils. Therefore, the current investigation aimed to identify the components of Satureja capitata L. volatile oil (VO), and examine the VO anticholinesterase, and antipedicular activities. The plant phytoconstituents were identified using Gas chromatography mass spectrometry (GC-MS) method, while the anticholinesterase activity was determined against butyryl- and acetyl-cholinesterase using Ellman’s method. In addition, antipedicular activity was established using the diffusion method. The obtained GC-MS results identified 16 compounds in S. capitata VO with the major constituents being carvacrol, γ-terpinene, and p-cymene. Anticholinesterase analysis showed a marked inhibition potential against acetyl- and butyryl-cholinesterase enzymes with half maximal inhibitory concentration (IC50) values of 28.24±0.97 μg/ml and 92.31±1.22 μg/ml, respectively in comparison with the reference compound galantamine, which has IC50 values against the same enzymes of 5.21±0.07 μg/ml and 10.33±0.37 μg/ml, respectively. In addition, the VO, at a concentration of 20%, was effective against head lice, similar to benzyl benzoate, which resulted in 100% mortality. In addition, the VO completely inhibited the emergence of lice nits after 6 and 14 days. On the basis of the obtained results, S. capitata VO is a promising natural alternative to synthetic antipedicular and anticholinesterase drugs, which can be employed in drug development, and may lead to new candidates against head lice and neurodegenerative diseases.

Publisher

Walter de Gruyter GmbH

Subject

General Agricultural and Biological Sciences,General Immunology and Microbiology,General Biochemistry, Genetics and Molecular Biology,General Neuroscience

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