ORCID "0000-0001-6047-2796" Makale Koleksiyonu için listeleme
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3-Propionyl-thiazolidine-4-carboxylic acid ethyl esters: A family of antiproliferative thiazolidines
Önen Bayram, Filiz Esra; Buran, Kerem; Durmaz, İrem; Berk, Barkın; Çetin-Atalay, Rengül (Royal Society of Chemistry, 2015)Cancer results from unregulated cell growth. Reactivating the process of the programmed cell death, i.e. apoptosis, is a classical anticancer therapeutic strategy. The apoptosis-inducing property of the (2RS,4R)-2-phenyl ... -
Antimicrobial evaluation of trisubstituted 2-piperazinyl thiazoles
Giray, Betül; Yurttaş, Leyla; Şahin, Zafer; Berk, Barkın; Demirayak, Şeref (İstanbul Medipol University, 2019)Thiazole and basic nitrogen containing rings are important chemical moieties of antimicrobial drugs. In recent, third generation cephalosporins include thiazole ring system. In this study, we synthesized 33 piperazine ... -
A contraindication to metfromin therapy: Renal impairment - Adherence to prescribing guidelines at a hospital in Turkey
Taner, Neda; Çattık, Büşra Nur; Berk, Barkın (University of Istanbul, 2018)Objective: The aim of this study was to investigate whether renal functions of the patients were monitored and checked before and during metformin treatment as recommended in guidelines or whether they were disregarded and ... -
Design and synthesis of new donepezil analogs derived from arylpiperazine scaffold as acetylcholinesterase inhibitors
Şahin, Zafer; Biltekin, Sevde Nur; Bülbül, Emre Fatih; Yurttaş, Leyla; Berk, Barkın; Demirayak, Şeref (Taylor & Francis Ltd, 2020)Newly synthesized 4-substituted phenyl-2-(4-substituted phenylpiperazine-1-yl)thiazole derivatives (4a-v) were evaluated in terms of their acetylcholinesterase (AChE) inhibition activities. Twenty-two compounds were tested ... -
Design and synthesis of stable N-[2-(Aryl/heteroaryl substituted)ethyl] propanamide derivatives of (S)-ketoprofen and (S)-ibuprofen as non-ulcerogenic anti-inflammatory and analgesic agents
Berk, Barkın; Bender, Ceysu; Akkol Küpeli, Esra; Yeşilada, Erdem (University of Istanbul, 2016)The carboxylic acid groups of (S) ketoprofen and (S) ibuprofen were brought into reaction with substituted ethylamine derivatives to form (S)-2-(4-isobutylphenyl)- and (S)-2-(3-benzoylphenyl)-N-[2-(aryl/heteroaryl substituted) ... -
Discovery of novel potent human chondrosarcoma (SW1353) inhibitors: 4-(2/3/4-pyridyl)thiazole 2-acetamide derivatives
Coşkun, Göknil Pelin; Şahin, Zafer; Erdoğan, Ömer; Çevik, Özge; Biltekin, Sevde Nur; Yurttaş, Leyla; Berk, Barkın; Ülgen, Mert; Demirayak, Şeref (Elsevier B.V., 2023)Chondrosarcoma is the most common cartilage sarcoma among adult patients. It is mainly observed after the degradation of chondrocytes in the case of cell stress. Unfortunately, the mortality among patients is high as a ... -
The effect of decolonization-decontamination prophylaxis versus traditional prophylaxis in orthopedic surgery in Kosovo
Ahmetaj, Donjetë; Aksoy, Nilay; Berk, Barkın (Istanbul Medipol University, 2024)This study aimed to compare empirical prophylactic treatment with decoloni-zation-decontamination prophylaxis protocol in order to reduce surgical site infections. The study was conducted in Kosovo Ortomedica Orthopedic ... -
The importance of computerized drug interaction checker programs used in community pharmacies to avoid potential drug interactions: A preliminary study with clarithromycin
Şimşek, Abdullah; Taner, Neda; Macit, Çağlar; Berk, Barkın; Mercanoğlu, Güldem (Istanbul Training & Research Hospital, 2019)Introduction: Drug-drug interactions (DDI) due to multiple drug use are the most important cause of adverse drug reactions. DDIs are among medication errors that can be prevented. The integrated computerized drug interaction ... -
Investigation of hidden crisis of prescription drug abuse in Turkey: Pregabalin monitoring
Badur, İsa; Bilgin Badur, Naciye; Berk, Barkın (Istanbul Medipol University, 2022)This is a cross-sectional retrospective observational national study. Abuse/misuse of the pregabalin and related parameters analyzed. Pregabalin was mostly pre-scribed by general practitioners (26.2%). Pregabalin prescribing ... -
Molecular modelling and activity analysis of mycobacterium tuberculosis DNA gyrase B ATPase active site
Berk, Barkın; Şahin, Zafer (University of Istanbul, 2017)Computer-based algorithms and statistical techniques such as receiver operating characteristic (ROC) curves are increasingly used for the design of new ligands. X-ray crystallographic data and homology models allow examining ... -
Molecular modelling and compound activity of the escherichia coli and staphylococcus aureus DNA gyrase B ATPase site
Berk, Barkın; Kaynar, Gürmen; Ertaş, Merve; Biltekin, Sevda Nur (University of Istanbul, 2017)Development of new treatment ligands that can distinguish Escherichia coli (E. coli) from Staphylococcus aureus (S. aureus) is important because of bacterium multiple drug resistance. High-throughput virtual screening ... -
Novel benzofurane carbonyl analogs of donepezil as acetylcholinesterase inhibitors
Şahin, Zafer; Biltekin, Sevde Nur; Yurttaş, Leyla; Berk, Barkın; Küçükkılınç, Tuba Tüylü; Demirayak, Şeref (Elsevier B.V., 2022)Donepezil is the most prescribed drug for mild to moderate Alzheimer's Disease. There is not any alternative drug with this potency yet. New scaffolds bearing benzofurans and amines are being tested for good potency on ... -
Novel benzofurane-pyrazole derivatives with anti-inflammatory, cyclooxygenase inhibitory and cytotoxicity evaluation
Şahin, Zafer; Özhan, Yağmur; Sipahi, Hande; Biltekin, Sevde Nur; Yurttaş, Leyla; Berk, Barkın; Demirayak, Şeref (Walter de Gruyter GmbH, 2022)Novel benzofurane-pyrazolone hybrids have been synthesized for evaluating their anti-inflammatory and cytotoxic properties. 4-(2-chloroacetyl)-1,5-dimethyl-2-phenyl-1,2-dihydro-3H-pyrazol-3-one were reacted with alpha-hydroxy ... -
Novel cyanothiouracil and cyanothiocytosine derivatives as concentration-dependent selective inhibitors of U87MG glioblastomas: Adenosine receptor binding and potent PDE4 inhibition
Şahin, Zafer; Biltekin, Sevde Nur; Yurttaş, Leyla; Berk, Barkın; Özhan, Yağmur; Sipahi, Hande; Gao, Zhanguo; Jacobson, Kenneth A.; Demirayak, Şeref (Elsevier France-Editions Scientifiques Medicales Elsevier, 2021)Thiouracil and thiocytosine are important heterocyclic pharmacophores having pharmacological diversity. Antitumor and antiviral activity is commonly associated with thiouracil and thiocytosine derivatives, which are well ... -
Novel thiazole-piperazine derivatives as potential cholinesterase inhibitors
Demirayak, Şeref; Şahin, Zafer; Ertaş, Merve; Bülbül, Emre Fatih; Bender, Ceysu; Biltekin, Sevde Nur; Berk, Barkın; Sağlık, Begüm Nurpelin; Levent, Serkan; Yurttaş, Leyla (Wiley, 2019)Dementia is a cognitive disorder mostly associated with Alzheimer's disease (AD) in addition to being seen in many other diseases of the central nervous system (CNS). The limited number of drugs is not sufficient to provide ... -
Potent ribonucleotide reductase inhibitors: Thiazole-containing thiosemicarbazone derivatives
Ertaş, Merve; Şahin, Zafer; Bülbül, Emre Fatih; Bender, Ceysu; Biltekin, Sevde Nur; Berk, Barkın; Yurttaş, Leyla; Nalbur, Aysu M.; Çelik, Hayati; Demirayak, Şeref (Wiley, 2019)The antioxidant, antimalarial, antibacterial, and antitumor activities of thiosemicarbazones have made this class of compounds important for medicinal chemists. In addition, thiosemicarbazones are among the most potent and ... -
Prognostic significance of tumor tissue NeuGcGM3 ganglioside expression in patients receiving racotumomab immunotherapy
Üskent, Necdet; Ayla, Şule; Molinas Mandel, Nil; Özkan, Metin; Teomete, Mehmet; Baloğlu, Hüseyin; Aydinçer, Cenk; Yergök, Hale; Doğan, Ender; Berk, Barkın; Yazar, Aziz (Hindawi Ltd., 2020)Expression ofN-glycolyl GM3 (NeuGcGM3) ganglioside was detected in the tumor specimens of patients who were on Racotumomab anti-idiotype vaccine maintenance treatment, and prognostic significance as a biomarker was ... -
A prospective study concerning the effect of pharmaceutical care services on patients with heart failure
Taner, Neda; Berk, Barkın (Marmara University, 2022)Objective: Heart failure (HF), caused by an abnormality in cardiac function, is the inability of heart tissue to pump blood or deliver sufficient oxygen, resulting in abnormal diastolic volume. Drug-Related Problems (DRPs) ... -
Pyridine-substituted thiazolylphenol derivatives: Synthesis, modeling studies, aromatase inhibition, and antiproliferative activity evaluation
Ertaş, Merve; Şahin, Zafer; Berk, Barkın; Yurttaş, Leyla; Biltekin, Sevde Nur; Demirayak, Şeref (Wiley-VCH Verlag, 2018)Drugs used in breast cancer treatments target the suppression of estrogen biosynthesis. During this suppression, the main goal is to inhibit the aromatase enzyme that is responsible for the cyclization and structuring of ... -
Studies on non-steroidal inhibitors of aromatase enzyme; 4-(aryl/heteroaryl)-2-(pyrimidin-2-yl)thiazole derivatives
Şahin, Zafer; Ertaş, Merve; Berk, Barkın; Biltekin, Sevde Nur; Yurttaş, Leyla; Demirayak, Şeref (Pergamon-Elsevier Science Ltd, 2018)Steroidal and non-steroidal aromatase inhibitors target the suppression of estrogen biosynthesis in the treatment of breast cancer. Researchers have increasingly focused on developing non-steroidal derivatives for their ...