WoS İndeksli Yayınlar Koleksiyonu

Permanent URI for this collectionhttps://hdl.handle.net/20.500.14627/6

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  • Article
    The Practice Environment Scale of the Nursing Work Index Short Form in Turkish: A Psychometric Study
    (BMC, 2026) Arici, Furkan Cihat; Harmancı Seren, Arzu Kader; Seren, Arzu Kader Harmanci; Ayan, Güzin
    BackgroundThe work environment is a concept encompassing factors that increase or decrease a nurse's ability to practice the nursing profession competently and provide high-quality care. This study aims to adapt the short form of the Nursing Work Index-Nursing Work Environment Assessment Scale, which is used in many countries to evaluate the nursing work environment, to Turkish.MethodsThe study sample consisted of 711 nurses. For this study, data were collected from the researchers' personal social media accounts (WhatsApp, LinkedIn, and Instagram) between October and December of 2024. The Turkish version of the short form of the Practice Environment Scale from the Nursing Work Environment Index was used to collect the data. After creating the Turkish version of the instrument through translation and back-translation and collecting data, the researchers conducted content validity analyses, construct validity tests, and internal consistency analyses to assess the instrument's psychometric properties.ResultsThe items' content validity ratios were 0.93, and correlation coefficients varied between 0.605 and 0.523. The one structure accounted for 56.122% of the total variance. PES-5 scale findings: chi & sup2;/df 3.76, CFI 0.973, TLI 0.946, SRMR 0.031, RMSEA 0.090, CR 0.62. The standardized factor loadings for the scale items ranged from 0.610 to 0.743. The scale was compatible with its five items and one-factor structure The items' standardized factor loadings ranged from 0.370 to 0.575. The Cronbach's alpha consistency value was 0.804.ConclusionA short form of the practice environment scale of the Nursing Work Index is a valid and reliable tool in Turkish.
  • Article
    Telehealth Delivery of the Homeostasis–Enrichment–Plasticity Approach for Premature Infants With Developmental Risks: Exploratory Feasibility Study
    (JMIR Publications, Inc, 2026) May-Benson, Teresa A.; Demirbag, Izgi-Miray; Sirma, Gamze Cagla; Sozen, Hatice Gulhan; Aracikul Balikci, Ayse Firdevs; Ilbay, Gul; Balikci, Aymen
    Background: Preterm delivery is an increasing worldwide health concern linked to increased neurodevelopmental risks. Early intervention is crucial for harnessing neuroplasticity to enhance developmental and functional performance outcomes; however, access to early intervention is frequently hindered by logistical, financial, and labor constraints. The Homeostasis-Enrichment-Plasticity (HEP) Approach is a family-centered early intervention model based on enriched environments, designed to improve infants' sensory-motor, cognitive, and socio-emotional development. Objective: This study aimed to assess the feasibility, safety, acceptability, and outcomessensitivity to change of implementing the HEP Approach through telehealth for premature infants at developmental risk. Methods: A pre-post exploratory feasibility study was performed, including 16 preterm infants (aged 4-12 months corrected age), of whom 14 completed the study. The 12-week intervention included weekly remote sessions focused on environmental enrichment, active exploration, and parental guidance. Thefeasibility and acceptability were evaluated using a 24-item questionnaire. Developmental outcomeswere assessed with the Young Children's Participation and Environment Measure, Ages and Stages Questionnaire (ASQ), Alberta Infant Motor Scale, Infant Motor Profile, and Depression Anxiety Stress Scales. Results: High adherence (14/14, 100%) and retention (14/16, 87.5%) rates demonstrated robust feasibility. Parents indicated 86%-100% agreement across all feasible criteria, affirming safety, satisfaction, and acceptability. No adverse incidents were reported. Changes were identified in participation (Young Children's Participation and Environment Measure), motor development (Alberta Infant Motor Scale, Infant Motor Profile, andASQ), communication and social-emotional domains (ASQ), and caregiver well-being (Depression Anxiety Stress Scales) (P<.05). Conclusions: The telehealth implementation of the HEP Approach demonstrated feasibility, safety, and strong acceptance among families, along with quantifiable developmental and psychosocial changes. These initial findings endorse the model's viability as an accessible, family-oriented telehealth framework for infants born preterm. Future randomized controlled and longitudinal studies are necessary to validate intervention efficacy and scalability.
  • Article
    Selective Recovery and Preconcentration of Catechins from Wine Industry Residues Using Molecularly Imprinted Polymers: An Eco-Friendly Solid Phase Extraction Approach
    (Springer, 2026) Özen, Seda; Tütem, Esma; Ersoy, Şeyda Karaman
    Molecularly imprinted polymers (MIPs) are engineered materials that provide exceptional selectivity and stability for target molecule recognition. While most previous catechin-imprinted polymer (CAT-MIP) studies have focused on tea matrices, the present study applies CAT-MIP technology to wine industry residues, particularly grape seeds, which represent sustainable and underutilized sources of bioactive compounds. CAT-MIP was synthesized using CAT as the template molecule and polymerization parameters including functional monomer type, porogen composition, and template-to-monomer-to-crosslinker molar ratios were systematically optimized. Among the tested conditions, 4-vinylpyridine (4-VP) and an acetonitrile: dimethyl sulfoxide (ACN: DMSO, 98:2, v/v) solvent system provided the most favorable imprinting performance. Adsorption studies revealed heterogeneous binding behavior consistent with the Freundlich model, while Langmuir parameters were used for comparative evaluation. The optimized CAT-MIP was successfully applied as a molecularly imprinted solid-phase extraction (MISPE) sorbent, achieving selective recovery of 69.20 +/- 2.45% for CAT and 52.50 +/- 1.77% for epicatechin (ECAT) from white grape seed extracts, with comparable performance observed for red grape seed extracts. This MISPE based approach offers the first comprehensive study applying CAT-MIP technology to wine industry waste valorization, comparing red and white grape varieties, and establishing a fully validated HPLC-PDA (high performance liquid chromatography-photodiode array detection) method for CAT quantification. The eco-friendly approach addresses the growing need for sustainable extraction of valuable high-value natural antioxidants. from agro-industrial byproducts.
  • Article
    Reverse Mentoring: Intergenerational Communication and Its Perceived Contributions to Organizational Life
    (Frontiers Media SA, 2026) Sarioglu, Elif Basak; Gorgun, Melih; Ozdemir, Ozlem
    Reverse mentoring, in contrast to traditional mentoring models, enables younger employees to guide senior leaders by sharing technological competencies, contemporary insights, and generational perspectives. This study aims to examine how reverse mentoring is experienced and interpreted by senior executives across various industries, including international companies operating in Türkiye. The study adopts a qualitative methodology based on in-depth interviews with 16 senior executives from diverse organizational settings. Rather than offering an objective assessment of program outcomes, the research focuses on the perceived effectiveness of reverse mentoring from the perspective of senior leaders. Thematic analysis indicates that senior leaders perceive reverse mentoring as more effective when mutual trust, psychological safety, open communication, and reciprocal engagement are present. Participants associated reverse mentoring with enhanced intergenerational communication, stronger organizational belonging, leadership development, digital adaptation, and innovation. Beyond facilitating knowledge exchange on digital tools, executives reported that reverse mentoring fosters broader interactions involving decision-making, strategic thinking, and organizational learning. The findings suggest that reverse mentoring functions not only as a knowledge-transfer mechanism but also as a relational and cultural practice that may support inclusive leadership and organizational adaptability. The study offers practical insights for organizations seeking to integrate reverse mentoring into leadership development and talent management strategies.
  • Article
    Protective Effects of Panax Ginseng against Bisphenol A-Induced Testicular Toxicity in Rats
    (Springer Nature, 2026) Cesur, Yasemin; Cam, Kamil; Pazarbasi, Seren Ede; Dorucu, Dogancan; Sener, Goksel; Abas, Burcin Irem; Cevik, Ozge
    Bisphenol A (BPA) is an endocrine-disrupting chemical known to cause testicular toxicity through oxidative stress and apoptosis. Panax ginseng (PG) is a natural product with anti-inflammatory effects. This study aimed to evaluate the protective effect of PG against BPA-induced testicular damage in rats. Thirty-two Wistar Albino rats aged 10-12 weeks were divided into four groups: Control, PG, BPA, and BPA + PG. BPA (50 mg/kg/day) and PG (100 mg/kg/day) were orally administered for 6 weeks. BPA significantly increased serum total oxidant status and decreased antioxidant status (p < 0.001, p < 0.001). Also, the levels of superoxide dismutase (an antioxidant enzyme) (p = 0.0005) and androgen receptor-mRNA (an androgen signaling marker) decreased (p = 0.014). However, caspase 3 (an apoptosis marker) (p = 0.0067), 8-hydroxy-2'-deoxyguanosine (a marker of oxidative DNA damage) (p < 0.001), and tumor necrosis factor-alpha (a proinflammatory cytokine) (p < 0.001) levels increased in testicular tissues. Rats treated with PG showed improvements in all oxidative and inflammatory markers and significantly restored androgen receptor expression. Histopathological examination revealed degeneration in seminiferous tubules and reduced spermatozoa in the BPA group, while the BPA + PG group showed marked improvement. These findings suggest that PG may alleviate oxidative stress-related testicular damage at both molecular and histological levels and may offer insights for future clinical studies.
  • Article
    Novel Hydrazide-Hydrazone Derivatives Containing Flurbiprofen 1,2,4-Triazole as Anticancer Agents: Design, Synthesis and Biological Evaluation
    (Slovensko Kemijsko Drustvo, 2026) Küçükgüzel, Ş. Güziz; Gökoğlan, Ecem; Yılmaz, Özgür; Çevik, Özge; Çakıcı, Çiğdem; Erdoğan, Ömer
    Hydrazone derivatives are one of the scaffolds frequently used in new drug development studies. Due to the promising pharmacological effects of the hydrazone structure, fifteen new hydrazide-hydrazone compounds containing flurbiprofen 1,2,4-triazole were synthesized in this study and their in vitro anticancer effects were tested. All compounds were tested for cytotoxic effects against breast cancer cell lines (MCF-7 and MDA-MB231), and glioblastoma cell line (U87) by using MTT assay. Among the synthesized compounds, compounds 7a and 7c exhibited the most potent cytotoxic activity with IC50 values of 7.80 +/- 1.20 & micro;M and 2.40 +/- 0.93 & micro;M against MCF-7 cell line, while compound 7a showed the highest activity with IC50 value of 7.63 +/- 1.05 & micro;M against MDA-MB231 cell line. In addition, compounds 7c and 7n presented cytotoxic activity with IC50 values of 10.31 +/- 4.63 & micro;M and 10.81 +/- 6.11 & micro;M against U87 cell line. The possible cytotoxic effects of compounds on mouse fibroblast cell line (L929) were assessed for their safety and compounds 7a, 7c, and 7n were found less toxic than 5-fluorourasil. Additionally, compound 7c was further studied to investigate its effects on apoptosis and PI3K activity, which play a role in cancer development. The results showed that compound 7c increased apoptosis in MCF-7 cells and it displayed PI3K enzyme inhibitory activity. Our study revealed that the synthesized hydrazone compounds have the potential to be lead compounds for further studies on cancer.
  • Article
    Prevalence and Risk of Carpal Tunnel Syndrome in Parkinson’s Disease: A Systematic Review and Meta-Analysis
    (MDPI, 2026) Raafat, Kareem Wael; Amin, Ahmed M.; Ezz, Mohamed R.; Sabry, Ehab Naser; Ibrahim, Ismail A.; Attia, Amir N.; Mohammed, Mariam M.
    Background: Parkinson's disease (PD) is a progressive neurodegenerative disorder characterised by motor and non-motor symptoms. Several studies have reported varying prevalence of Carpal Tunnel Syndrome (CTS) among individuals with PD. Objective: This study aimed to estimate the pooled prevalence of CTS in people with PD and explore any potential association between the two conditions. Methods: This systematic review and meta-analysis was conducted and reported in accordance with the PRISMA 2020 guidelines. A systematic search was performed across PubMed, the Cochrane Central Register of Controlled Trials (CENTRAL), Web of Science (WoS), Scopus, and EMBASE from inception to April 2024. Studies reporting CTS prevalence data in individuals with PD were included. Methodological quality was assessed using the National Institutes of Health (NIH) quality assessment tool. Pooled prevalence estimates were calculated using a random-effects model. Risk difference (RD) and risk ratio (RR) were calculated to assess the association between PD and CTS compared with control groups. Results: A total of 7 studies involving 411 participants (343 with PD and 68 controls) met the inclusion criteria, with 679 wrists assessed. The pooled prevalence of CTS in PD was estimated at 15% (95% CI: 0.07-0.28) with significant heterogeneity (p < 0.001, I-2 = 91%). The RD was 10% (95% CI: 0.04-0.16, p = 0.002), with low heterogeneity (p = 0.29, I-2 = 19%). The RR of CTS in PD compared with controls was 3.31 (95% CI: 0.60-18.42, p = 0.17), with moderate heterogeneity (p = 0.13, I-2 = 52%). Conclusions: This meta-analysis provides preliminary pooled estimates indicating a potentially increased prevalence of carpal tunnel syndrome in individuals with PD. Although the findings suggest a possible association, clinicians should maintain increased vigilance for CTS symptoms in patients with PD presenting with upper-limb sensory or motor complaints. From a biomechanical and functional perspective, these findings highlight the importance of routine upper-limb screening and the implementation of rehabilitation strategies targeting hand use, dexterity, and sensorimotor control within physiotherapy practice. Further high-quality studies with larger, well-characterised samples are required to confirm this relationship and clarify its clinical and functional implications.
  • Article
    Metabolic Responses to Benzoic Acid Stress and Glutamine Transport-Dependent Vulnerabilities in Escherichia Coli Revealed by NMR Metabolomics
    (Springer, 2026) Yuksektepe, Ecem; Elgin, Emine Sonay; Onat-Tasdelen, Kadriye Aslihan; Chae, Young Kee; Dogu, Eralp; Catav, Sukru Serter; Ozturkel-Kabakas, Hatice
    Benzoic acid (BA) is a widely used weak organic acid preservative with antimicrobial activity, yet the metabolic basis of its antibacterial action and the determinants of bacterial sensitivity remain incompletely understood. Here we combined growth assays with H-1 NMR metabolomics to characterize BA-induced metabolic responses in Escherichia coli BW25113 and to examine metabolic changes associated with impaired glutamine transport. Wild-type BW25113 and its BA-sensitive isogenic Delta glnP mutant, lacking the membrane-bound glutamine permease of the high-affinity GlnHPQ transport system, were exposed to sublethal BA concentrations. BA slowed growth and significantly altered the levels of 42 metabolites in the wild-type and 38 in Delta glnP, with the mutant showing stronger growth inhibition and reduced BA tolerance. Both strains exhibited metabolic changes consistent with cellular responses to oxidative and acid stress, including alterations in central carbon metabolism, lysine degradation, cysteine and methionine metabolism, pyrimidine metabolism, and one-carbon pool by folate. However, several metabolic responses differed between the two strains. In wild-type cells, BA exposure was associated with changes in glycerolipid metabolism, glycerophospholipid metabolism, nicotinate and nicotinamide metabolism, lysine biosynthesis, glycine, serine and threonine metabolism, and purine metabolism. In contrast, Delta glnP cells showed distinct alterations in D-amino acid metabolism, arginine biosynthesis, and other carbon fixation pathways. In addition, the mutant displayed substantial baseline differences relative to the wild-type, including altered nucleotide and amino acid pools. Together, these results indicate that both BA exposure and deletion of glnP induce broad metabolic adjustments in Escherichia coli. Loss of glnP is associated with distinct metabolic states and altered responses to BA stress, highlighting the importance of glutamine transport in adaptation to weak organic acid stress.
  • Article
    Ibuprofen and Nimesulide Derivatives Selectively Induce Apoptosis in HER2-Positive Breast Cancer via Inhibition of the PLA2-COX-2-NF-κB Pathway
    (Springer, 2026) Bedir, Ipek; Cakirli, Egemen; Kucukguzel, S. Guniz; Yilmaz, Ozgur; Biliz, Yagmur; Telci, Dilek
    Background Chronic inflammation contributes to breast cancer development through the phospholipase A(2) (PLA(2))-cyclooxygenase-2 (COX-2)-nuclear factor kappa B (NF-kappa B) cascade, which regulates prostaglandin synthesis, oxidative stress, and transcription of pro-inflammatory and anti-apoptotic genes. This pathway is particularly active in HER2-positive breast cancer, promoting proliferation, invasion, and resistance to apoptosis. Non-steroidal anti-inflammatory drugs such as ibuprofen and nimesulide target COX enzymes and have shown potential in suppressing inflammation-driven tumorigenesis. In this study, we evaluated the anticancer and anti-inflammatory activity of newly synthesized, structurally modified ibuprofen and nimesulide derivatives designed to modulate PLA(2)-COX-2-NF-kappa B axis. Methods and Results Cytotoxicity was assessed in HER2-positive breast cancer cells (AU565 and SKBR3) and compared with normal dermal fibroblasts (HDF) and breast epithelial cells (MCF-12A), using WST-1 assays. Apoptosis, cell cycle distribution, caspase-3/7 activation, and ROS generation were analyzed by imaging-based assays, flow cytometry, and fluorescence methods. Gene expression of PLA2G2A and PTGS2 was quantified by qRT-PCR, and NF-kappa B translocation was analyzed by immunocytochemistry. Two ibuprofen triazole derivative (D1) and ibuprofen thioether derivative (D7) and one nimesulide derivative (D8) significantly reduced cell viability in a dose-dependent manner without affecting normal cells. These derivatives induced G(0)/G(1) arrest, caspase-3/7 activation, ROS reduction, and increased late apoptosis. Downregulation of PLA2G2A and PTGS2 expression and inhibition of NF-kappa B translocation confirmed disruption of the PLA(2)-COX-2-NF-kappa B cascade. Conclusion These findings demonstrate that structurally optimized ibuprofen and nimesulide derivatives exert dual anti-inflammatory and anticancer effects in HER2-positive breast cancer by suppressing PLA(2)-COX-2-NF-kappa B pathway and promoting apoptotic cell death.
  • Article
    Global Age-Sex-Specific All-Cause Mortality and Life Expectancy Estimates for 204 Countries and Territories and 660 Subnational Locations, 1950-2023: A Demographic Analysis for the Global Burden of Disease Study 2023
    (Elsevier Science Inc, 2025) Zheng, Peng; Bhoomadevi, A.; Barber, Ryan M.; Aalipour, Mohammad Amin; Schumacher, Austin E.; Aalruz, Hasan; Peter, Olumuyiwa James
    Background Comprehensive, comparable, and timely estimates of demographic metrics-including life expectancy and age-specific mortality-are essential for evaluating, understanding, and addressing trends in population health. The COVID-19 pandemic highlighted the importance of timely and all-cause mortality estimates for being able to respond to changing trends in health outcomes, showing a strong need for demographic analysis tools that can produce all-cause mortality estimates more rapidly with more readily available all-age vital registration (VR) data. The Global Burden of Diseases, Injuries, and Risk Factors Study (GBD) is an ongoing research effort that quantifies human health by estimating a range of epidemiological quantities of interest across time, age, sex, location, cause, and risk. This study-part of the latest GBD release, GBD 2023-aims to provide new and updated estimates of all-cause mortality and life expectancy for 1950 to 2023 using a novel statistical model that accounts for complex correlation structures in demographic data across age and time. Methods We used 24 025 data sources from VR, sample registration, surveys, censuses, and other sources to estimate all-cause mortality for males, females, and all sexes combined across 25 age groups in 204 countries and territories as well as 660 subnational units in 20 countries and territories, for the years 1950-2023. For the first time, we used complete birth history data for ages 5-14 years, age-specific sibling history data for ages 15-49 years, and age-specific mortality data from Health and Demographic Surveillance Systems. We developed a single statistical model that incorporates both parametric and non-parametric methods, referred to as OneMod, to produce estimates of all-cause mortality for each age-sex-location group. OneMod includes two main steps: a detailed regression analysis with a generalised linear modelling tool that accounts for age-specific covariate effects such as the Socio-demographic Index (SDI) and a population attributable fraction (PAF) for all risk factors combined; and a non-parametric analysis of residuals using a multivariate kernel regression model that smooths across age and time to adaptably follow trends in the data without overfitting. We calibrated asymptotic uncertainty estimates using Pearson residuals to produce 95% uncertainty intervals (UIs) and corresponding 1000 draws. Life expectancy was calculated from age-specific mortality rates with standard demographic methods. For each measure, 95% UIs were calculated with the 25th and 975th ordered values from a 1000-draw posterior distribution. Findings In 2023, 60 center dot 1 million (95% UI 59 center dot 0-61 center dot 1) deaths occurred globally, of which 4 center dot 67 million (4 center dot 59-4 center dot 75) were in children younger than 5 years. Due to considerable population growth and ageing since 1950, the number of annual deaths globally increased by 35 center dot 2% (32 center dot 2-38 center dot 4) over the 1950-2023 study period, during which the global age-standardised all-cause mortality rate declined by 66 center dot 6% (65 center dot 8-67 center dot 3). Trends in age-specific mortality rates between 2011 and 2023 varied by age group and location, with the largest decline in under-5 mortality occurring in east Asia (67 center dot 7% decrease); the largest increases in mortality for those aged 5-14 years, 25-29 years, and 30-39 years occurring in high-income North America (11 center dot 5%, 31 center dot 7%, and 49 center dot 9%, respectively); and the largest increases in mortality for those aged 15-19 years and 20-24 years occurring in Eastern Europe (53 center dot 9% and 40 center dot 1%, respectively). We also identified higher than previously estimated mortality rates in sub-Saharan Africa for all sexes combined aged 5-14 years (87 center dot 3% higher in GBD 2023 than GBD 2021 on average across countries and territories over the 1950-2021 period) and for females aged 15-29 years (61 center dot 2% higher), as well as lower than previously estimated mortality rates in sub-Saharan Africa for all sexes combined aged 50 years and older (13 center dot 2% lower), reflecting advances in our modelling approach. Global life expectancy followed three distinct trends over the study period. First, between 1950 and 2019, there were considerable improvements, from 51 center dot 2 (50 center dot 6-51 center dot 7) years for females and 47 center dot 9 (47 center dot 4-48 center dot 4) years for males in 1950 to 76 center dot 3 (76 center dot 2-76 center dot 4) years for females and 71 center dot 4 (71 center dot 3-71 center dot 5) years for males in 2019. Second, this period was followed by a decrease in life expectancy during the COVID-19 pandemic, to 74 center dot 7 (74 center dot 6-74 center dot 8) years for females and 69 center dot 3 (69 center dot 2-69 center dot 4) years for males in 2021. Finally, the world experienced a period of post-pandemic recovery in 2022 and 2023, wherein life expectancy generally returned to pre-pandemic (2019) levels in 2023 (76 center dot 3 [76 center dot 0-76 center dot 6] years for females and 71 center dot 5 [71 center dot 2-71 center dot 8] years for males). 194 (95 center dot 1%) of 204 countries and territories experienced at least partial post-pandemic recovery in age-standardised mortality rates by 2023, with 61 center dot 8% (126 of 204) recovering to or falling below pre-pandemic levels. There were several mortality trajectories during and following the pandemic across countries and territories. Long-term mortality trends also varied considerably between age groups and locations, demonstrating the diverse landscape of health outcomes globally. Interpretation This analysis identified several key differences in mortality trends from previous estimates, including higher rates of adolescent mortality, higher rates of young adult mortality in females, and lower rates of mortality in older age groups in much of sub-Saharan Africa. The findings also highlight stark differences across countries and territories in the timing and scale of changes in all-cause mortality trends during and following the COVID-19 pandemic (2020-23). Our estimates of evolving trends in mortality and life expectancy across locations, ages, sexes, and SDI levels in recent years as well as over the entire 1950-2023 study period provide crucial information for governments, policy makers, and the public to ensure that health-care systems, economies, and societies are prepared to address the world's health needs, particularly in populations with higher rates of mortality than previously known. The estimates from this study provide a robust framework for GBD and a valuable foundation for policy development, implementation, and evaluation around the world.