Scopus İndeksli Yayınlar Koleksiyonu
Permanent URI for this collectionhttps://hdl.handle.net/20.500.14627/7
Browse
59 results
Search Results
Article Myrtus Communis Ameliorates Ionizing Radiation-Induced Cardiopulmonary Injury in Rats: Trod-Grog Study(Keai Publishing Ltd, 2026) Aytekin, Aynur; Isci, Oguzhan; Ozyilmaz, Nagehan; Karaoglu, Sumeyye Yilmaz; Ertas, Busra; Sen, Ali; Atasoy, Beste Melek; Yılmaz Karaoğlu, SümeyyeObjectives: Ionizing radiation (IR), widely used in diagnostic and therapeutic procedures, can damage vital organs such as the heart and lungs through oxidative stress. This study aims to assess the potential radioprotective effect of Myrtus communis (MC) against cardiopulmonary injury. Methods: Thirty female rats were divided into four groups. Control (C) and IR (R) groups received oral saline. The treatment (R+MC) and pretreatment (R+preMC) groups received MC (100 mg/kg) for 4 days (starting on the day of IR) and 8 days (starting 4 days before IR), respectively. All IR-exposed groups (R, R+MC, R+preMC) received a single 10 Gy whole-body irradiation. Histopathological changes were assessed by hematoxylin-eosin staining, while oxidative stress was evaluated by measuring malondialdehyde (MDA), glutathione (GSH), myeloperoxidase (MPO), nitric oxide (NO), superoxide dismutase (SOD), glutathione S-transferase (GST), and tissue factor activity (TFa) levels. Protein profiles in tissues were analyzed by sodium dodecyl sulfate-polyacrylamide gel electrophoresis (SDS-PAGE). Results: Histopathologically, MC reduced alveolar and cardiomyocyte damage in both R+MC and R+preMC groups. IR increased all oxidative stress markers and decreased antioxidant parameters in heart and lung tissues (p < 0.05-0.001). Both MC treatment and pretreatment reversed these effects, significantly reducing oxidative/inflammatory markers and restoring antioxidant enzyme activities (p < 0.05-0.001). The R+preMC group demonstrated a stronger protective effect than the R+MC group. Conclusion: Our study shows that MC has a radioprotective effect on the cardiopulmonary system by decreasing oxidative damage. MC appears to be a promising natural compound for advanced radioprotection research, and further molecular and clinical studies could clarify its mechanisms and potential applications<bold>.</bold>Article Citation - WoS: 1Citation - Scopus: 1A Comparative Study of Biochemical, Antimicrobial Effects and Phytochemical Composition Analysis of Glycyrrhiza Glabra L. Varieties Root Extracts(Marmara University, 2025) Sen, Ali; Servı, Hüseyın; Barak, Timur Hakan; Tekin, Fethullah; Şener, Azize; Marzi, Mahdi; Gülmez, GizemPlants are the significant global interest as alternative treatment sources with their biologically activecompounds. This study compares the chemical composition and the antioxidant, antidiabetic, and antimicrobialproperties of ethanol extracts of G. glabra L. two different varieties from different regions. The phytochemicalcompositions was determined using GC-MS. Additionaly, total phenolic (TPC), flavonoid (TFC) and triterpene (TTC)contents were determined. Glycyrrhizic acid contents were analysed by HPLC. G. glabra var. glandulifera (GF1) showedthe highest antioxidant activity. All extracts had strong antidiabetic effects, besides GF1 showing the highest effect. TheMIC values was determined against 8 bacterial and 1 yeast strain and values ranged from 2.500 to 0.500; 2.500 to 0.714;2.500 to 0.714 for G. glabra var. glabra (GB), GF1, G. glabra var. glandulifera (GF2) respectively. Phytochemical studies haveshown that TPC was 100.60±5.06, 127.90±0.30, 69.01±0.30 mg GAE /g extract; TFC was 80.07±0.15, 25.35±0.0, 16.58±0.31mg KE/g and TTC was 217.30±6.05,172.40±2.17, 126.30±4.50 mg OE/g extract for GB, GF1, GF2, respectively. GF1 inparticular has the highest glycyrrhizic acid content. This study will contribute to the creation of new treatment strategiesand potential therapeutic agents in addition to the use of G. glabra L. in traditional treatments. Our study is also apreliminary study for future studies.Article Citation - Scopus: 1Selection of Sustainable Facade Materials for Buildings Using Fermatean Fuzzy AHP & WASPAS Methodology(SAGE Publications Ltd, 2025) Aydeniz, E.G.; Güven, İ.; Özçelik, N.; Çetin, H.T.; Ünlü, E.The selection of sustainable facade materials is critical for achieving a sustainable built environment. Multi-criteria decision-making approaches can be used to determine the best alternative among the others considered in selecting sustainable facade materials. Fermatean Fuzzy Sets (FFSs) can represent the uncertainty in this selection and expand the parameter domain of this uncertainty. This study proposes an integrated analytical model based on the Interval-Valued Fermatean Fuzzy Analytic Hierarchy Process (IVFF-AHP) and Fermatean Fuzzy Weighted Aggregated Sum Product Assessment (FF-WASPAS) to address the uncertainty and complexity in this selection process. The model evaluates facade materials against environmental, financial, social, and technical criteria, comprising 13 sub-criteria. IVFF-AHP is utilized to calculate the weights of these criteria, with Environmental Criteria receiving the highest weight (32.9%), followed by Technical (30.7%) and Social (19.6%) criteria. FF-WASPAS is employed to rank four facade material options, with Wood-Plastic Composite (WPC) identified as the most sustainable material, followed by Aggregated Natural Stone, Aluminium Composite Panels, and Concrete Cladding. The results highlight the approach's capability to provide objective and robust rankings, aiding decision-makers in identifying the most sustainable option. The outcomes underscore the model's novelty in integrating Fermatean fuzzy logic with multi-criteria decision-making techniques, offering enhanced flexibility in uncertainty representation and contributing to the advancement of sustainable construction practices through a more informed and structured decision-making process. © 2025 Elsevier B.V., All rights reserved.Article A Novel Acoustic Source Localization Technique for Edge AI Applications: A Lightweight Framework and Implementation for IoT and Smart Sensing Devices(Istanbul University, 2025) Yarkan, S.This paper presents a novel and computationally efficient three-point signal estimation method for acoustic direction finding, designed specifically for low-cost embedded platforms. The proposed approach offers a lightweight alternative to traditional cross-correlation techniques by minimizing computational complexity while preserving high angular resolution. The method was implemented and tested on an STM32F429 microcontroller using a pair of MAX4466 electret microphones arranged on a fixed baseline. The system architecture leverages bare-metal signal processing routines optimized with Acorn RISC Machine Cortex. Microcontroller Software Interface Standard (ARM CMSIS-DSP) libraries, enabling real-time performance on resource-constrained hardware. Extensive experiments were conducted to evaluate the angular estimation accuracy under varying signal-tonoise ratios and source orientations. Results show that the system maintains sub-degree mean square error for source angles up to 30°, with noticeable performance degradation observed at 40° due to the directional response characteristics of the microphone elements. A comprehensive explanation is provided linking this degradation to reduced microphone sensitivity at wider angles of incidence. The proposed solution is ideal for applications requiring embedded acoustic localization, including smart interfaces, vehicular monitoring, and surveillance systems. In addition, the paper discusses the implications of deploying such systems in artificial intelligence (AI)-enabled and security-critical environments, highlighting emerging threats such as adversarial acoustic interference and spoofing attacks. These challenges underscore the importance of resilient and efficient DF methods that can operate reliably within the constraints of embedded systems. The presented work lays the foundation for future research in secure, scalable, and AI-compatible acoustic sensing platforms. © 2025 Elsevier B.V., All rights reserved.Article Relationship Between Resilience, Secondary Traumatic Stress and Work-Related Factors Among Mental Health Professionals(Kare Publ, 2025) Dikec, Gul; Tokatlıoglu, Tugba Sahın; Çetinkaya, Saadet; Yasar, SaadetObjectives: Resilience is the ability to maintain or rapidly recover mental health under stress. Mental health profes- sionals are often exposed to workplace stress through violence, emotional labor, restrictions, and traumatic stories. Secondary traumatic stress results from being affected by others’ traumatic experiences. Examining the relationship between resilience and secondary traumatic stress among mental health professionals is therefore essential. Methods: This descriptive study was conducted between February and April 2022. Data were collected using the Per- sonal Information Form, the Resilience Scale for Adults, and the Secondary Traumatic Stress Scale. Participants included 212 psychiatric and mental health nurses, 28 psychiatrists, 14 psychologists, and six social workers. Results: A significant positive relationship was found between resilience and secondary traumatic stress. The regres- sion model, including secondary traumatic stress, gender, educational status, willingness to work in mental health, job satisfaction, and unit of work, significantly predicted resilience. Conclusion: Secondary traumatic stress and work-related factors, such as willingness and satisfaction with working in mental health and the unit of work, were found to play an essential role in resilience. Institutional support and supervision may strengthen resilience, while reducing secondary traumatic stress can enhance motivation and well- being. Institutions are recommended to implement strategies that address these factors to improve both resilience and professional effectiveness.Article Evaluation of Dietary Habits and Related Parameters in a Group of Inpatients With Mental Disorders(Kare Publ, 2025) Dikec, Gul; Ata, Elvan Emıne; Özer, Duygu; Çalışkan, Mahinur Betül; Taliskan, Mahinur BetulObjectives: This study aimed to examine the dietary habits and related parameters of individuals with mental disorders. Methods: This study was descriptive and cross-sectional. The sample consisted of 94 individuals hospitalized in the psychiatric clinic of a hospital between June and December 2021. Data were collected using an information form cre- ated by the researchers. Results: Of the participants, 83% were male, and 25.5% had a chronic physical illness. The patients had a diagnosis of mental disorder for an average of 6.07 years. The most common side effect was an increase in appetite (36.4%). Additionally, 76.6% ate within 15 minutes, 93.6% consumed fish once a week or never, and 56.4% never exercised. In- dividuals who consumed home-cooked meals had lower BMI averages than those who consumed fast food. A weakly significant positive correlation was found between BMI and waist circumference averages and the duration of medica- tion use. Individuals with anxiety disorders had lower waist circumference, glucose, and LDL values compared to those with mood disorders. In contrast, individuals with psychotic disorders had significantly lower LDL levels than those diagnosed with mood disorders. Conclusion: Individuals with mental disorders were found to have inadequate and unbalanced nutrition, consuming diets rich in carbohydrates and low in protein, which negatively affected their parameters. Psychiatric nurses should evaluate the dietary habits of patients and provide counseling about healthy nutrition.Article Synthesis, Molecular Modeling, Anti-Cancer and COX-1/2 Inhibitory Activities of Novel Thiazolidinones Containing Benzothiazole Core(Bangladesh Pharmacological Society, 2024) Kulabas, Necla; Guven, Cansu Tamniku; Duracık, Merve; Bingol Ozakpinar, Ozlem; Küçükgüzel, İlkay; Ozakpinar, Ozlem BingolIn this study, new 1,3-thiazolidin-4-one derivatives containing arylmethylene groups in the 5-position were obtained from 6-(trifluoromethoxy)-1,3-benzo-thiazol-2-amine (riluzole). Synthesized compounds were characterized by spectral data and elemental analysis. In vitro, cytotoxic activities of the synthesized molecules were evaluated against the human lung cancer (A549) and human prostate cancer (PC-3) cell lines. Compounds were also tested on mouse embryonic fibroblast cells (NIH/3T3) to determine selectivity. Ten target compounds 3-12 were also screened for their COX-1 and COX-2 inhibitory activities. Of these compounds, 4 showed the highest COX-2 inhibition at 10 μM. Molecular docking calculations were performed to understand the binding interactions of compounds with COX-1 and COX-2 proteins. In silico studies of the tested compounds represented important binding modes that may be responsible for their anti-cancer activity via selective inhibition of the COX-2 enzyme. ADMET predictions were conducted to assess the drug-like properties of the novel compounds. © 2024 Elsevier B.V., All rights reserved.Article Comparison of HLA-G Levels for Cord Blood Derived-MSC and Wharton's Jelly Derived-MSC(Walter de Gruyter GmbH, 2025) Abatay Sel, Figen; Erol Bozkurt, Ayse; Karatas, Sule; Suleymanoglu, Mediha; Yasa, Beril; Yasa, Cenk; Savran Oguz, Fatma; Oǧuz, Fatma Savran; Sel, Figen Abatay; Bozkurt, Ayşe ErolObjectives: A special group of stem cells with multipotent and immunomodulatory properties are mesenchymal stem cells (MSCs). Many modulatory factors are thought to mediate immunomodulatory properties of MSCs. One of these modulatory factors is thought to be HLA-G, one of human leukocyte antigens (HLA). This study aimed to compare HLA-G levels in both stimulated and unstimulated of peripheral blood mononuclear cell (PBMC) cultures with "cord blood-MSC" (CB-MSC) and "Wharton's jelly-MSC" (WJ-MSC) at different rates and different incubation periods. Methods: WJ-MSCs were obtained by explant method, and CB-MSCs using Ficoll-paque. They were characterized by flow cytometry. MSCs and PBMCs were directly co-cultured for 24 and 72 h at 1:5 and 1:10, respectively. After incubations, the media were collected and HLA-G levels were measured by ELISA. Results: In the unstimulated group, the highest HLA-G level was found in the PBMC:WJ-MSC-72-1:5 group, while the lowest HLA-G level was found in the PBMC:CB-MSC-72-1:5. When 24-1:5 and 72-1:5 groups were examined, the HLA-G level decreased significantly in CB-MSC groups compared to WJ-MSC, while it increased significantly in the 24-1:10 and 72-1:10 groups (p<0.05). In stimulated groups, the highest HLA-G level was observed in the PBMC:CB-MSC-24-1:5. Conclusions: Our study aimed to evaluate the immunomodulatory effect of MSCs via HLA-G molecule. HLA-G levels changed with different incubation times of two different MSC sources. In this study, we suggest that MSCs as a cell therapy, in particular for immune system-related disease, may be a preliminary in vitro approach to evaluate the immunomodulatory effect via HLA-G.Article Determination of Post-Earthquake Trauma Level and Investigation of the Relationship with Physical Activity Status(Turkish Physiotherapy Association, 2025) Tosun, Anil; Yılmaz, Nergis; Luque, Demet Tekın De Las Penas; Tekin De Las Penas Luque, DemetAmaç: Çalışmanın amacı; 06 Şubat 2023’te meydana gelen Pazarcık-Elbistan merkezli depremler sebebiyle kişilerde oluşan travma düzeyinin, kişinin fiziksel aktivite durumu ile ilişkisini incelemektir. Aynı zamanda, kişilerde deprem sonrası ağrı varlığının sorgulanması ve bu durumun travma düzeyi ile ilişkisini ortaya koymaktır. Yöntem: Veriler çevrimiçi olarak Google formları aracılığıyla toplandı, 18-65 yaş arası 388 gönüllü katılımcı (299 kadın, 89 erkek) çalışmaya dahil edildi. Katılımcıların genel özelliklerini belirlemek için “Sosyodemografik Bilgi Formu”, travma düzeyini değerlendirmek için “Deprem Sonrası Travma Düzeyini Belirleme Ölçeği” (DSTDBÖ) ve fiziksel aktivite durumlarını belirlemek için “Uluslararası Fiziksel Aktivite Anketi Kısa Formu” (IPAQ-KF) kullanıldı. Bulgular: Deprem bölgesinde bulunma durumuna göre DSTDBÖ genel puan ortalamaları arasında anlamlı fark saptandı (p<0,001). Deprem bölgesinde bulunan 126 kişinin DSTDBÖ genel puan ortalaması 57,66±19,87 iken, bölgede bulunmayan 262 kişinin ortalaması 49,00±18,49 olarak bulundu. Spearman korelasyon analiziyle deprem bölgesinde olan ve olmayan bireylerin IPAQ-KF toplam puanları, DSTDBÖ alt faktör ve toplam puanları arasındaki ilişki incelenmiş olup sadece “Bilişsel Yapılandırma” alt faktörü ile IPAQ-KF toplam puanları arasında anlamlı bir ilişkiyi yansıtmayan negatif zayıf ilişki bulundu (deprem bölgesinde olanlar için Spearman korelasyon katsayı değeri =-0,18, p=0,042). Ve deprem sonrası ağrı yaşayan bireylerin DSTDBÖ puanları, ağrı yaşamayanlardan daha yüksek olarak saptandı (p=0,000). Sonuç: Bu çalışma ile deprem sonrası travma düzeyinin, fiziksel aktivite ile negatif ilişki gösterdiği belirlendi. İnaktif bireyler daha yüksek travma düzeylerine sahipken, minimal aktif bireylerde travma düzeyleri daha düşük bulundu. Bu bulgular, deprem sonrası fiziksel aktivitenin artırılmasının travma düzeylerini azaltmada etkili bir strateji olabileceğini göstermektedir. Bu alanda daha fazla araştırma, eğitim ve proje çalışmalarının yapılması gerekmektedir.Article In Vitro Efficacy of Sumac (Rhus coriaria) Extracts Against Leishmania Tropicana and Leishmania Mexicana: A Preliminary Study from Turkiye(Istanbul Univ, 2025) Mete, Ergun; Ozel, Yener; Bardakci, Hilal; Durmuskahya, Cenk; Koseler, Aylin; Kurt, OzgurObjective: Cutaneous leishmaniasis (CL) is a common clinical manifestation of leishmaniasis. Here, the in vitro anti-leishmanial efficacy of sumac extracts was tested for the first time on both Leishmania (L.) tropica and L. mexicana isolates using Rhus (R.) coriaria plant, which was collected in western Anatolia. Materials and Methods: The dried and powdered fruits of R. coriaria were macerated in acetone, ethyl alcohol, and ethyl alcohol-water mixture at room temperature for two days. The pooled extracts were evaporated under reduced pressure and lyophilized form for the study. Isolates of L. tropica and L. mexicana in Acibadem University R&D Laboratory were initially thawed and cultivated in NNN medium. Assessments were made using the haemocytometer and MTT methods at 24 and 48 h, compared with meglumine antimoniate as the control group. Results: For L. tropica, the effective concentration ranges of the extracts and the infusion were found to be 578.13-289.06 pg/mL and 289.06-144.53 pg/mL, respectively. For L. mexicana, the ranges were found to be 289.06-144.53 pg/mL and 144.53-72.27 pg/mL, respectively. It was shown that all extracts of R. coriaria were effective against both L. tropica and L. mexicana in higher doses, compared to meglumine antimoniate. Conclusion: An interesting finding was that higher sumac doses were required to eliminate L. tropica of the Old World, compared to L. mexicana of the New World. In addition, the aqueous alcohol extract showed efficacy that lasted for 48 h in half doses compared to others in L. tropica. Further assessments for both the identification of the active compounds within R. coriaria and their efficacy in vivo are planned.