Kurum Yazarı "Ceylan, Özgür" PubMed İndeksli Yayınlar Koleksiyonu İçin Listeleme
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Antibiofilm and Anti-Quorum Sensing Potential of Cycloartane-Type Triterpene Acids from Cameroonian Grassland Propolis: Phenolic Profile and Antioxidant Activity of Crude Extract
Tamfu, Alfred Ngenge; Ceylan, Özgür; Cârâc, Geta; Talla, Emmanuel; Dinica, Rodica Mihaela (MDPI, 2022)Propolis is very popular for its beneficial health properties, such as antimicrobial activity and antioxidant effects. It is one of the most long-serving traditional medicines to mankind due to its interesting chemical ... -
Antibiofilm, antiquorum sensing and antioxidant activity of secondary metabolites from seeds of Annona senegalensis, Persoon
Tamfu, Alfred Ngenge; Ceylan, Özgür; Fru, Godloves Chi; Öztürk, Mehmet; Duru, Mehmet Emin; Shaheen, Farzana (Academic Press Ltd- Elsevier Science Ltd, 2020)The increasing resistance of bacteria to antibiotics has motivated the interest in potent natural compounds capable of disrupting bacterial cell-to-cell communication. Column chromatography of seed extract of Annona ... -
Antioxidant and Anti-quorum Sensing Potential of Acer monspessulanum subsp monspessulanum Extracts
Ceylan, Özgür; Şahin, Mehtap Dönmez; Akdamar, Gültekin (Georg Thieme Verlag Kg, 2016)In this study, anti-quorum sensing, and antioxidant activities, and chemical composition of Acer monspessulanum subsp. monspessulanum extracts were evaluated. Determination of the antioxidant activity was revealed by DPPH ... -
Assessment of the antibiofilm and antiquorum sensing activities of Eucalyptus globulus essential oil and its main component 1,8-cineole against methicillin-resistant Staphylococcus aureus strains
Merghni, Abderrahmen; Noumi, Emira; Hadded, Ons; Dridi, Neyla; Panwar, Harsh; Ceylan, Özgür; Snoussi, Mejdi (Academic Press Ltd- Elsevier Science Ltd, 2018)Antibacterial resistance is an increasingly serious threat to global public health. The search for new anti-infection agents from natural resources, with different mode of actions and competitive effects became a necessity. ... -
Characterisation of Streptomyces violascens OC125-8 lipase for oily wastewater treatment
Boran, Rukiye; Uğur, Aysel; Saraç, Nurdan; Ceylan, Özgür (Springer Heidelberg, 2019)In this study, the lipase-producing bacterium Streptomyces violascens (GenBank number MF621564) was identified, and the extracellular S. violascens OC125-8 lipase produced by this strain was characterised for use in ... -
Chemical composition and anti-biofilm activity of Thymus sipyleus BOISS. subsp sipyleus BOISS. var. davisianus RONNIGER essential oil
Ceylan, Özgür; Uğur, Aysel (Pharmaceutical Soc Korea, 2015)In this study, antimicrobial and antibiofilm activities and the chemical composition of Thymus sipyleus BOISS. subsp. sipyleus BOISS. var. davisianus RONNIGER essential oil was evaluated. The essential oil was obtained by ... -
Chemical composition, anti-quorum sensing, enzyme inhibitory, and antioxidant properties of phenolic extracts of clinopodium nepeta l. Kuntze
Beddiar, Hatem; Boudiba, Sameh; Benahmed, Merzoug; Ceylan, Özgür; Küçükaydın, Selçuk (MDPI, 2021)Phenolic extracts of Clinopodium nepeta were prepared and their preliminary phenolic profiles determined using HPLC-DAD with 26 phenolic standards. Apigenin (21.75 ± 0.41 µg/g), myri-cetin (72.58 ± 0.57 µg/g), and rosmarinic ... -
The constituents of essential oil and in vitro antimicrobial activity of Micromeria cilicica from Turkey
Duru, Mehmet Emin; Öztürk, Mehmet; Uğur, Aysel; Ceylan, Özgür (Elsevier Ireland Ltd, 2004)The chemical composition of the essential oil of Micromeria cilicica (Labiatae) that has been used in folk medicine were analysed by GC, GC-MS, H-1 NMR and C-13 NMR. The totals of 34 components in hydrodistillation, 30 ... -
Design andin vitroantibiofilm activity of propolis diffusion-controlled biopolymers
Ceylan, Özgür; Karakuş, Hatice; Çiçek, Hüseyin (Wiley, 2020)In this study, a novel pH-sensitive hydrogel beads that is based on gelatin/sodium alginate/chitosan (GEL/SA/CS) loaded with propolis ethanolic extracts (PE) were synthesized. The swelling behavior of GEL/SA/CS hydrogel ... -
Evaluation of anti-quorum sensing and antibiofilm effects of secondary metabolites from Gambeya lacourtiana (De Wild) Aubr. & Pellegr against selected pathogens
Talla, Rostan Mangoua; Tamfu, Alfred Ngenge; Wakeu, Brussine Nadège Kweka; Ceylan, Özgür (BMC, 2023)Background: Microbial infections cause serious health problems especially with the rising antibiotic resistance which accounts for about 700,000 human deaths annually. Antibiotics which target bacterial death encounter ... -
Inhibition of quorum sensing-regulated behaviors by Scorzonera sandrasica
Boşgelmez-Tinaz, Gulgun; Ulusoy, Seyhan; Uğur, Aysel; Ceylan, Özgür (Springer, 2007)Many Gram-negative bacteria use N-acyl homoserine lactone signal molecules to monitor their own population density and coordinate gene regulation in a process called quorum sensing (QS). Increasing evidence implies that ... -
Occurrence of resistance to antibiotics, metals, and plasmids in clinical strains of Staphylococcus spp
Uğur, Aysel; Ceylan, Özgür (Elsevier Science Inc, 2003)Background. Presence of staphylococci resistant to antibiotics is of concern, as is the possible spread of resistance determinants among Staphylococcus species. During the past several years, a series of staphylococcal ... -
Phytochemical composition, anti-biofilm and anti-quorum sensing potential of fruit, stem and leaves of Salvadora persica L. methanolic extracts
Noumi, Emira; Snoussi, Mejdi; Merghni, Abderrahmen; Nazzaro, Filomena; Quindos, Guillermo; Akdamar, Gültekin; Ceylan, Özgür (Academic Press Ltd- Elsevier Science Ltd, 2017)Emergence of antibiotic resistance among pathogenic bacteria encourages us to search for new molecules as an alternative treatment. The aim of this study was to evaluate the antiquorum sensing (anti-QS) and antibiofilm ... -
A preliminary study of chemical profiles of honey, cerumen, and propolis of the african stingless bee meliponula ferruginea
Popova, Milena Petkova; Gerginova, Dessislava; Trusheva, Boryana S.; Simova, Svetlana D.; Tamfu, Alfred Ngenge; Ceylan, Özgür; Clark, Kerry; Bankova, Vassya Stefanova (MDPI AG, 2021)Recently, the honey and propolis of stingless bees have been attracting growing atten-tion because of their health-promoting properties. However, studies on these products of African Meliponini are still very scarce. In ...