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  • Küçük Resim Yok
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    Composition characterization and biological activity study of Thymbra spicata l. var. spicata essential oil
    (2021) Eruygur, Nuraniye; Kocyıgıt, Umit M.; Atas, Mehmet; Cevık, Ozge; Gökalp, Faik; Taslimi, Parham; Gulcın, İlhami
    The current research aimed to determine and report in vitro antioxidant, antimicrobial, antibiofilm, cytotoxic, anti-cholinesterase, and anti-diabetic properties and the stability of the major component of basic oil of Thymbra spicata var. spicata through different phases as theoretically. Essential oil exhibits potential biological activities because of the multiple components it contains.In the current research, the evaluation of Thymbra spicata essential oil antioxidant properties was conducted utilizing 1,1-diphenyl-2-picrylhydrazyl (DPPH) and 2,2- azinobis[3-ethylbenzthiazoline]-6-sulfonic acid (ABTS) radical scavenging activity.Antimicrobial activity was assessed from minimum inhibition concentration (MIC) using the technique of microdilution and cytotoxicity activity was evaluated by MTT assay through MCF-7 and PC3 human cancer cell lines.Consequently, Cytotoxic activity was evaluated by means of MTT assay utilized. The essential oil was detected to have 340 ?g/mL inhibiting influence on the growth of PC3 prostate cancer cells with IC50 value. Also, the T. spicata plant was observed to significantly repress the enzymes, namely acetylcholinesterase (AChE), butyrylcholinesterase (BChE), ?-glycosidase. IC50 values of enzymes were obtained 0.23 ?g/mL for AChE, 1.64 ?g/mL for BChE, 7.78 ?g/mL for ?-glycosidase. It was concluded that this plant may be used for Alzheimer's and diabetes disease.
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    The highly protective natural medical agents against COVID-19
    (2021) Gökalp, Faik; Sayın, Koray
    OBJECTIVE: The studies to prevent the Corona virus, which is a huge epidemic nowadays and causes the death of many people, are of great importance. Drugs to be developed to prevent the proliferation and spread of it. The active substances of the drugs have been used to prevent the attack of the COVID-19. The natural phytochemicals obtained from the traditional medicine play a big role in the inhibition of functional structures in many harmful microscopic structures. METHODS: The active role of the substances for protecting from the attack of COVID-19 have been calculated and determined by using docking. RESULTS: It has been clarifi ed that drug active substances inhibit COVID-19. The selected active ingredients seem to have considerable inhibition effects for COVID-19. Molecular mechanical Poisson-Boltzman (MM-PSBA) calculations were used to analyse the selected molecules. CONCLUSION: This study is the fi rst in terms of reducing the harmful effect of COVID-19 by providing effective results in a short time by guiding the experimental studies to reveal the inhibitory effect of COVID-19