TR-Dizin İndeksli Yayınlar Koleksiyonu
Permanent URI for this collectionhttps://hdl.handle.net/20.500.14627/9
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Article Determination of Age- and Gender-Specific Reference Values for Different Functional Tests with or without Cognitive Dual-Task in Young Adults: An Observational Study(Turkey Assoc Physiotherapists, 2025) Analay Akbaba, Yildiz; Emirza Cilbir, Cigdem; Poyraz Isleyen, Tugce; Evrendilek, Halenur; Gungor Eroglu, Nazli; Asena Yekdaneh, Aye; Gungor, Feray; Güngör, Nazlı; Emirza, Cigdem; İşleyen, Tuğçe Poyraz; Analay, Yıldız; Yekdaneh, Ayşe AsenaPurpose: To determine the age-and gender-specific reference values for the five functional tests performed with or without cognitive dual-task in young adults. Methods: In this cross-sectional observational study, a total of 107 participants were divided into four subgroups based on gender and age: females 18-25 years (G1), and 26-35 years (G2), and males 18-25 years (G3), and 26-35 years (G4). Participants completed the timed up and go test (TUG), 4 meter gait speed test, 10 meter walk test (10MWT), timed 25-foot walk test, and 1 minute sit-to-stand test (1MSTS) with and without dual-tasks. The mean value of each test was recorded. Results: Significant differences were observed in some functional tests. TUG was longer in G1 compared to G2 (p=0.019), 10MWT dual-task performance differed between G1 and G3 (p=0.041), and 1MSTS and 1MSTSdual scores were higher in G3 compared to G4 (p=0.044 and p=0.035, respectively). All dual-task conditions led to decreased performance compared to single-task conditions (p<0.001) Conclusion: The dual-task added to the performance tests changes the time, speed, and number of repetitions in healthy individuals, and these effects may vary according to age and gender. These reference values can guide clinical assessments of dual-task performance in this population.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 Tsunami Awareness: A Case Study Of Hasköy, Beyoğlu, İstanbul(Afet ve Acil Durum Yönetimi Başkanlığı (AFAD), 2025) Taskin, H.; Gunaydin, D.H.; Yücel, G.An earthquake-triggered tsunami, originating from seismic activity in seas and oceans, poses a significant threat to coastal settlements within its impact zone. As part of risk reduction efforts, enhancing public awareness of tsunamis is crucial for mitigating potential disaster-related damages. Accordingly, this study emphasizes the importance of tsunami awareness initiatives by assessing the pre-disaster knowledge levels of the community. The study aims to measure the tsunami-related knowledge and awareness levels of residents in a settlement exposed to tsunami hazards. In this qualitative research, data were collected through semi-structured interviews conducted with business owners and employees in a purposively selected settlement. The study was carried out in the Piripaşa neighborhood of the Hasköy district in Istanbul’s Beyoğlu region, specifically within the coastal area parallel to the shoreline of the Golden Horn. Data were obtained from 22 active commercial enterprises out of 50 located along this coastal road. During the interviews, five key questions were posed to assess the respondents’ basic knowledge of tsunami awareness. The questionnaire also included images of tsunami evacuation route signs. The questions covered demographic characteristics, business activity sector, knowledge of tsunami hazards, awareness of the region’s tsunami risk, familiarity with tsunami evacuation procedures, and knowledge of relevant institutions and organizations involved in tsunami preparedness. The findings of the study indicate that the majority of the surveyed enterprises predominantly operate within the service sector. Furthermore, the results reveal a notably low level of awareness among participants regarding tsunami hazards, as well as limited knowledge of appropriate response behaviors during such events. While 50% of participants believe that the region is not at risk of tsunamis, 59% reported being aware of tsunami warning signs, which is a notable observation. Enhancing awareness of tsunami hazards and the region’s tsunami risk level is both essential and a priority. © (2025), (Afet ve Acil Durum Yonetimi Baskanligi (AFAD)). All right 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 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.Article Lactobacillus Rhamnosus GG Alleviates Bisphenol-A Induced Oxidative Stress in Serum(Marmara University, Faculty of Pharmacy, 2025) Şener, Göksel; Tunali-Akbay, Tugba; Dorucu, Dogancan; Ede-Pazarbasi, Seren; Dede, Pınar; Ede-Pazarbas, SerenThe objective of this investigation was to identify changes in the serum oxidant-antioxidant balance of rats exposed to bisphenol A (BPA) and to investigate the impact of Lactobacillus rhamnosus GG (LGG) administration on those changes. Twenty-four rats (Wistar Albino, 250-300 grams, male) were divided into control, BPA, and BPA+LGG groups with an equal number of rats. BPA and LGG were applied to the rats in the relevant groups for six weeks, five days each week. Six weeks later, the blood samples were withdrawn and serum samples were prepared. Total oxidant and antioxidant status (TAS), glutathione, and lipid peroxidation determinations were determined in serum samples, and the oxidative stress index was calculated. BPA exposure decreased serum total antioxidant status and increased serum total oxidative status, oxidative stress index, and lipid peroxidation level compared to the control group. LGG administration improved the increased serum oxidative stress caused by BPA. Administration of LGG to BPA-treated rats reversed oxidative stress-induced changes. In conclusion, administration of Lactobacillus rhamnosus GG to rats for 30 consecutive days prevented oxidative stress in serum caused by bisphenol A.Article The Effect of Vitamin D and Paricalcitol on Protein Disulfide Isomerase(Marmara University, 2025) Koksal, Murat; Şekerler, Turgut; Şener, Azize; Koksal, Muhammed MuratProtein disulfide isomerase (PDI), a multifunctional protein plays an important role as oxidoreductase, isomerase and chaperone in the cell. Prior studies have identified PDI is highly expressed in many different cancer types and presented as a new potential target for cancer treatment. Here, we investigated vitamin D and its analogue paricalcitol in silico interaction of the human PDI and inhibition of PDI reductase activity in vitro. We observed a non-covalent mechanism where the main skeleton of the vitamin D3 ans paricalcitol sturcture is located at the hydrophobic site in the b' domain of PDI and forms a hydrogen bond with a residue (His138) in tihs domain. They also form multiple weak hydrophobic interactions with various chemical groups of the b' subunit. For the first time, we demonstrate that 1,25-dihydroxyvitamin D3 (1a,25(OH)2 vitamin D3) and paricalcitol inhibit the PDI reductase activity in vitro and their IC50 values are 20.79±1.43 nmol/L and 32.83±3.15 nmol/L respectively. The two compounds can also block the denistrosation activity of PDI.Article Protective Effects of Cuscuta Sp. Against Cardiorenal Injury in Bile Duct-Ligated Rats(Istanbul Univ, 2025) Hatipoglu, Bilge Nur; Ozbeyli, Dilek; Sen, Ali; Cevik, Ozge; Ercan, Feriha; Albayrak, Omercan; Sener, GokselObjective: Bile duct ligation (BDL) obstructs bile flow, resulting in bile and toxic substances buildup that causes liver damage. This study investigated the protective effects of Cuscuta sp. methanol extract (CUS) against cardiorenal injury in bile duct-ligated rats. Materials and Methods: Rats were categorised into four groups: Control (C), CUS, BDL, and BDL+CUS. The C and BDL groups received saline, whereas the other groups received oral 250 mg/kg CUS. After 28 days, blood, kidney, and heart tissue samples were collected for biochemical and histological analyses. Serum aspartate aminotransferase (AST), alanine aminotransferase (ALT), direct bilirubin (DB), and total bilirubin (TB) levels were analysed to determine liver function, while Transforming growth factor-beta (TGF-beta) and hydroxyproline (HYP) levels were evaluated for fibrosis, and 8-hydroxy-2-deoxyguanosine (8-OHdG) levels alongside Na+/K+-ATPase activity were analysed to assess oxidative stress and membrane injury in the heart and renal tissues. Results: AST, ALT, DB, and TB levels were significantly elevated in the BDL group compared with the C group; however, the levels were distinctly lower in the BDL+CUS group than in the BDL group. Additionally, in both tissues, TGF-beta, HYP, and 8-OHdG levels were higher in the BDL group than in the C group, but decreased in the BDL+CUS group, with Na+/K+-ATPase activity being lower in BDL group compared with the C group and significantly increased in BDL+CUS group. Conclusion: CUS has protective effects against oxidative damage and offers antioxidant and anti-inflammatory benefits against cholestasis-induced tissue injury.Article Life and Stigma Experiences of Individuals with Substance Use Disorder: A Qualitative Study(Turkish Green Crescent Soc, 2025) Dikec, Gul; Umut, Gokhan; Albal, EsraThis study aimed to determine the life and stigma experiences of individuals with substance use disorder who received inpatient treatment in an adult detoxification center. Data for this qualitative phenomenological study were collected in Istanbul between April and December 2023. The data were analyzed using Colazzi steps. A total of 26 individuals with substance use disorder were interviewed. The content analysis identified three main themes. The initial topic discussed was the effect of substance use on individuals’ lives. The sec- ond theme discussed was stigmatization. The final theme addressed coping with stigmatization. The study revealed that participants experienced negative emotions, including regret, guilt, and shame, due to stigma- tization, exclusion, and discrimination. Substance use treatment should not only focus on pharmacotherapy but also the psychological and social needs of the individual. Furthermore, to address negative attitudes in society, mental health professionals could inform families and disseminate anti-stigma programs.