Browsing by Author "Boga, Mehmet"

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Citation - WoS: 1
Citation - Scopus: 1
Effect of pleurotus Ostreatus Water Extract Consumption on Blood Parameters and Cytokine Values in Healthy Volunteers
(Routledge Journals, Taylor & Francis Ltd, 2024) Dundar, Abdurrahman; Yalcin, Pinar; Arslan, Nurgul; Acay, Hilal; Hatipoglu, Abdulkerim; Boga, Mehmet; Yaprak, Bulent
Objective: Our aim in this study is, does 29-day regular consumption of Pleurotus ostreatus water extract by volunteer individuals who meet the study criteria have an effect on blood and cytokine values? Method: In accordance with the purpose of the study, volunteers were asked to consume 100 ml of the extract every morning for 29 days. Three tubes of blood samples were taken from the volunteers on the 15th and 29th days of the study. Biochemical and hematological analysis of the blood samples were performed and immunomodulatory effects through cytokines were examined. The values obtained from 3 tubes of blood obtained from volunteers before the use of mushroom extract were used as control. The chemical composition and beta-glucan content of 100 ml of mushroom water extract were also analyzed. Result: IL-4, IL-6, IL-10 and IL-13 could not be detected because the values were below the lowest standard value. TNF-alpha, IFN-gamma and IL-1 beta 15th and 29th day values decreased compared to the 1st day (control) values (p < 0.05). However, there was no significant difference observed between the 15th and 29th day. No abnormalities were observed in biochemical and hematological values. Also, the beta-glucan content of extract was found 38.12 mg/100 ml. Conclusion: The frequency range of kidney and liver function test results confirmed that P. osreatus is a reliable food source. Considering the cytokine values these results indicate that P. ostreatus water extract has an anti-inflammatory effect. As no significant difference was observed in 29 days of use, it is thought that 15 days of daily consumption of the extract may be sufficient for the anti-inflammatory effect to occur. However, a large number of qualified clinical trials are needed to support the issue.
Towards a Better Understanding of Commonly Used Medicinal Plants from Turkiye: Detailed Phytochemical Screening and Biological Activity Studies of Two Teucrium L. Species with in Vitro and in Silico Approach
(Elsevier Ireland Ltd, 2023) Ersoy, Ezgi; Boga, Mehmet; Tuncay, Evin Ayguen; Eroğlu Özkan, Esra; Aygün Tuncay, Evin; Ercan, Selami; Ozkan, Esra Eroglu; Suvari, Goncagul; Karahan, Selim
Ethnopharmacological relevance: Since ancient times, Teucrium L. species have been among the most commonly used traditional medicinal plants mainly in the Mediterranean region. From tackling gastrointestinal problems to maintaining the healthy functioning of endocrine glands, and from treating malaria to severe dermatological disorders, Teucrium species are known to have extensive therapeutic applications. Teucrium polium L. and Teucrium parviflorum Schreb. are the two members of the genus that have been used in Turkish folk medicine for various medicinal purposes.Aim of the study: To determine the phytochemical compositions of the essential oils and ethanol extracts of Teucrium polium and Teucrium parviflorum collected from different locations in Turkiye along with the investi-gation of in vitro antioxidant, anticancer, antimicrobial activities, and both in vitro and in silico enzyme inhibitory activities of the extracts.Materials and methods: Ethanol extracts of Teucrium polium aerial parts and roots, and aerial parts of Teucrium parviflorum were prepared. Volatile profiling of the essential oils by GC-MS, phytochemical profiling of the ethanol extracts by LC-HRMS, antioxidant activity by DPPH radical scavenging, ABTS cation radical scavenging, CUPRAC, and metal chelating activity assays, anticholinesterase, antityrosinase, antiurease, activities by different enzyme inhibitory activity assays, anticancer activity by SRB cell viability assay, and antimicrobial activity against a standard panel of bacteria and fungi by the microbroth dilution technique. Molecular docking studies were performed by Autodock Vina (Ver. 1.1.2). Results: The studied extracts were found to be quite rich in various biologically important volatile and phenolic compounds. (-)-Epigallocatechin gallate, which is a molecule renowned for having great therapeutic potential, was the major compound of all extracts. Teucrium polium aerial parts extract was revealed as a great source for naringenin with 16327 +/- 685.23 mu g/g extract. All extracts exerted significant antioxidant activity by different methods. All ex-tracts demonstrated antibutrylcholinesterase, antityrosinase, and antiurease activities by in vitro and in silico assays. Teucrium polium roots extract stood out with remarkable tyrosinase and urease inhibitory and cytotoxic activities.Conclusion: The obtained results from this multi-disciplinary study proves that the traditional use of these two Teucrium species is justified, and the mechanisms behind are enlightened.