PubMed İndeksli Yayınlar Koleksiyonu
Permanent URI for this collectionhttps://hdl.handle.net/20.500.14627/8
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Article Citation - WoS: 2Citation - Scopus: 3Biological Activities of Etodolac-Based Hydrazone, Thiazolidinone and Triazole Derivatives on Breast Cancer Cell Lines MCF-7 and MDA-MB(Wiley, 2025) Sevinc, Sevgi Kocyigit; Cikla-Suzgun, Pelin; Tiber, Pinar Mega; Kucukguzel, S. Guniz; Orun, Oya; Güniz Küçükgüzel, Ş.In this study, several etodolac-based hydrazone, thiazolidinone, and triazole derivatives that we synthesized and characterized in our earlier research were tested against the hormone-responsive breast cell line MCF-7 and the triple-negative MDA-MB-231, as well as the murine origin fibroblast cell line L-929, at varying doses for their effects on cell viability and toxicity and for their inhibitory activity on cyclooxygenase-2 (COX-2)/prostaglandin E2 (PGE2) formation. Cell viability and apoptosis tests were utilized to assess the anti-cancer potential of etodolac and its derivatives after the cells were exposed to varied concentrations of synthesized compounds for three different time periods. ELISA and Western blot methods were used to detect protein levels. All synthesized compounds demonstrated higher anti-cancer activity at significantly lower doses compared to etodolac (half-maximal inhibitory concentration [IC50] of 0-50 mu M range in derivatives versus 0.5-1 mM range in etodolac). Except for SGK 242, which had a major toxic effect on all cells, the chemicals SGK 206 and SGK 217 had a twice-less impact on control murine L-929 fibroblasts. Similar to proliferation, low concentrations of SGK 206 and SGK 217 (25-50 mu M) significantly induced apoptosis in breast cancer cells but not in normal cells. Additionally, they inhibited COX-2 protein expression at 50 mu M, and SGK 206 inhibited PGE2 release more effectively than etodolac in cancer cells. The results of this study suggest that, in comparison to a healthy control group, the thiazolidinone derivative SGK 206 and the thiazolidinone derivative SGK 217 are more effective than etodolac when it comes to the breast cancer cell lines MCF-7 and MDA-MB-231. SGK 206 exhibits a low IC50 value, a distinct dose-response relationship, and strong apoptotic effects, particularly on MDA-MB-231 cells.Article Citation - WoS: 5Citation - Scopus: 5The Association of Demographic, Psychological, Social and Activity Factors With Foot Health in People With Plantar Heel Pain(Wiley, 2024) Gulle, Halime; Morrissey, Dylan; Tayfur, Abdulhamit; Coskunsu, Dilber Karagozoglu; Miller, Stuart; Birn-Jeffery, Aleksandra V.; Prior, TrevorBackground: Plantar Heel Pain (PHP) can be a debilitating musculoskeletal condition from which only 50% recover within a year due to poor understanding of the mechanisms explaining severity and predicting outcomes specific to PHP. Objective: To explore associations between biopsychosocial variables and the severity of people with PHP. Secondly, to determine what combination of self-reported factors distinguishes people with PHP from other foot pain (OFP). Methods: We collected data from 235 participants, including 135 (%57) PHP (age 44 +/- 12 years, 66% female) and 99 OFP (%43) (age 38 +/- 11 years, 57% female) using 5 demographic, 13 biomedical, 8 psychological, 3 social and 8 activity-related factors. These were tested in linear and logistic regression models. Results: Quality of life (QoL) (beta = 0.35; p < 0.001), education (beta = -0.22; p = 0.003), gender (beta = -0.20; p = 0.007), morning pain duration (beta = -0.18; p = 0.01) and disease duration (beta = -0.15; p = 0.040) were significantly associated with severity of PHP. The second model, without QoL, showed that having sensitisation (beta = -0.18; p = 0.002) and a higher level of morning pain (beta = -0.20; p = 0.01) are associated with severity. The logistic regression results revealed that people with PHP tend to have a systemic disease (OR = 3.34; 1.53-7.76), express more kinesiophobia (OR = 1.02; 1.01-1.14), are less likely to have previous injuries (OR = 0.40; 0.19-0.81), worse morning pain (OR = 1.02; 1.01-1.03) and standing pain (OR = 2.60; 1.39-4.87) compared to people with OFP. Conclusions: People with PHP have higher associated levels of a range of psychological, social and activity related factors than people with OFP. The findings highlight the importance of considering psychosocial assessments alongside physical examination.Article Citation - WoS: 1Citation - Scopus: 1Reliability of the Icd-11 Personality Disorder Severity Ratings and Diagnosis(Wiley, 2024) Aydin-Seyrek, Tugba; Gandur, Tarik; Turgut, Neslihan; Kunt, Duygu Aslan; Dereboy, FerhanThe present study aimed to investigate the interrater reliability of the dichotomous and dimensional personality disorder (PD) diagnoses based on the overall severity assessment on a rating form consisting of 18 anchored items encompassing diagnostic requirements of the International Classification of Diseases 11th Revision (ICD-11). We also aimed to examine the extent of consistency within the diagnostic requirements grouped under the domains of self- and interpersonal functioning, specific manifestations of personality dysfunction, and distress and impairment in psychosocial functioning. Our data involved a total of 184 inter-ratings of 46 consenting patients by the same set of four clinicians. The chance-corrected agreement levels were estimated at intraclass correlation coefficient (ICC) = 0.89 for the overall severity composite, ICC = 0.83 for the dimensional PD diagnosis and Fleiss' kappa = 0.77 for the dichotomous PD diagnosis. Internal consistency analysis of the overall severity composite and the domain composites revealed Cronbach's alpha coefficients approaching or exceeding 0.90 level. Our findings suggest that the diagnostic requirements listed in the ICD-11 and related documents for the severity determination in PD compose an internally consistent set. With the guidance of a rating form comprised of anchored items covering this set, competency-level clinicians are likely to perform reliable evaluations of the severity of personality disturbance, and dimensional and dichotomous PD diagnoses. The development of semi-structured interviews that would further facilitate the task of inspecting and rating each diagnostic requirement reliably will possibly enhance the implementation of the ICD-11 classification for PD around the world.Article Citation - WoS: 5Citation - Scopus: 5The Effect of an Educational Peer-Based Intervention Program on Sexual and Reproductive Health Behavior(Wiley, 2024) Ogul, Zeynep; Sahin, Nevin HotunIntroductionThe fact that adolescent people experience risky sexual behavior and have insufficient knowledge of sexual and reproductive health (SRH) indicates the need for SRH education. This study investigates the impact of peer-educated SRH programs on the knowledge and behaviors of adolescents.MethodThis study was conducted as a randomized controlled trial on 275 university students. The subjects were randomly assigned to the peer educators (n = 25), intervention (n = 125) and control (n = 125) groups using systematic random sampling. Peer educators provided face-to-face SRH education to the intervention group. The researcher provided the same education to the control group via the online conference method. SRH knowledge and behavior evaluated with scales before, after, and 3 and 6 months after the SRH education. The obtained data were analyzed using SPSS version 25 through statistical tests and analysis of covariance.ResultsThe female and male ratio of the participants was almost equal (49.4%, 50.6%). The mean age was found to be 20.42 +/- 1.14 years. The mean scores of the students in the intervention group increased from 21.20 +/- 0.14 to 35.20 +/- 0.07 for sexual health knowledge questionnaire (SHKQ), and from 130.56 +/- 0.55 to 147,90 +/- 0,25 for reproductive health scale (RHS) after the education. Compared with the control group, these increases in the mean scores of SHKQ and RHS were found to be statistically significant.ConclusionThe findings show the important role of the SRH peer education method on the effect of transferring knowledge about sexual behaviors. Health and education policy-makers are advised to implicate SRH peer education.Article Citation - WoS: 5Citation - Scopus: 5Disaster Risk Perception and Sustainable Earthquake Awareness Among Public and Private University Nursing Students(Wiley, 2024) Kolac, Nurcan; Eroglu, Nermin; Nirgiz, CansuBackground: This research was conducted in descriptive type to determine the disaster risk perception and sustainable earthquake awareness of nursing students studying at public and private universities. Methods: The study sample consisted of 400 nursing students studying at one public and one private university. The research was conducted between April and May 2023. The data were collected using a Sociodemographic Form, University Students Disaster Risk Perception Scale (USDRPS), and Sustainable Earthquake Awareness Scale (SEAS). Data were collected online using a questionnaire created on Google Forms. Analyses included frequency, percentage, mean, standard deviation values, independent groups t-test, post-hoc Tukey test, LSD, and ANOVA test. Results: Of the students, 61.8% had a disaster experience, 17.4% had lost a relative in the disaster, and 76.8% did not consider themselves prepared for a possible disaster. In the study, the exposure sub-dimension score of the disaster risk perception scale was found to be higher in students who had disaster experience than in those who did not (p = 0.032). Nursing students from the private university had higher sustainable earthquake awareness scores than those studying at the state university (p = 0.001). The mean scores of female students on the earthquake preparedness and preparation application sub-dimensions showed a significant difference compared to the scores of male students (p = 0.016). In the study, sustainable earthquake awareness total and earthquake preparedness sub-dimension scores were higher in second-year nursing students than in students of other years (p = 0.042; 0.015). Those who had received disaster training had low scores on the uncontrollable sub-dimension of the disaster risk perception scale, and high scores on the total SEAS and earthquake-structure relationship, earthquake preparedness, and earthquake preparation application sub-dimensions (p < 0.05). Conclusions: In the study, three out of four students did not find themselves prepared for disasters. Those who had disaster experience had higher disaster risk perceptions. Students who had received disaster-related training had more positive earthquake preparedness, earthquake-structure relationship, and earthquake preparation applications than those who had not. Students who were female and were in the second year had higher earthquake awareness. Studies can be carried out to inform people about the pre-disaster and preparation stages to raise awareness about disasters at universities. Education on disaster management can be integrated into courses from the first years of university.Article Elastic Sac To Support Oral Feeding Performance of Preterm Infants: Crossover Randomized Controlled Study(Wiley, 2024) Genc, Canan; Goezen, Duygu; Narter, Fatma; Gözen, DuyguBackgroundSwaddling is recommended for preterm infants during feeding. Swaddling preterm infants with elastic cotton materials allows infants to easily stretch and move their extremities. This study aimed to assess the effect of bottlefeeding in a novel "elastic sac" on physiological parameters and feeding performance of preterm infants. MethodsA randomized controlled, crossover trial was conducted with total of 26 preterm infants at 26-36(+6) weeks of gestation. Infants randomly assigned to group 1 (n = 13) were bottlefed in an elastic sac (researcher-designed single-piece pouch made of soft, elastic cotton) for the first feeding and in normal clothes for the next feeding. Infants randomly assigned to group 2 (n = 13) were fed first in normal clothes and then in the elastic sac. The physiological parameters and feeding performance of the infants were assessed during each feeding. ResultsPreterm infants fed in the elastic sac had lower heart rate and higher oxygen saturation during and after feeding than infants fed in normal clothes (P < 0.05). Although all values were within clinically normal ranges, the findings suggest that feeding preterm infants in the elastic sac had a favorable effect on physiological parameters compared with feeding in normal clothes. There was no significant difference in the infants' feeding performance (P > 0.05). ConclusionA semielevated right lateral position and flexed body posture are recommended while feeding preterm infants, which can be easily maintained using the elastic sac. Feeding preterm infants in an elastic sac may support physiologic stability during oral feeding.Article Citation - WoS: 4Citation - Scopus: 5A Comprehensive Assessment of the Cholinergic-Supporting and Cognitive-Enhancing Effects of <i>rosa Damascena</I> Mill. (damask Rose) Essential Oil on Scopolamine-Induced Amnestic Rats(Wiley, 2024) Terali, Kerem; Ozbeyli, Dilek; Yigit-Hanoglu, Duygu; Baser, Kemal Husnu Can; Sener, Goksel; Aykac, AsliIntroduction: Alzheimer's disease (AD) is a neurodegenerative condition characterized by gradual loss of cognitive abilities (dementia) and is a major public health problem. Here, we aimed at investigating the effects of Rosa damascena essential oil (RDEO) on learning and memory functions in a rat model of amnesia induced by scopolamine, as well as on changes in acetylcholinesterase (AChE) activity, M-1 muscarinic acetylcholine receptor (mAChR) expression, and brain-derived neurotrophic factor (BDNF) levels in the extracted brain tissues. Methods: The control, amnesia (scopolamine, 1 mg/kg/i.p.) and treatment (RDEO, 100 mu L/kg/p.o. or galantamine, 1.5 mg/kg/i.p.) groups were subjected to Morris water maze and new object recognition tests. AChE activity was assayed by ELISA, and M-1 mAChR and BDNF concentration changes were determined by western blotting. Also, using computational tools, human M-1 mAChR was modeled in an active conformation, and the major components of RDEO were docked onto this receptor. Results: According to our behavioral tests, RDEO was able to mitigate the learning and memory impairments caused by scopolamine in vivo. Our in vitro assays showed that the observed positive effects correlated well with a decrease in AChE activity and an increase in M-1 mAChR and BDNF levels in amnestic rat brains. We also demonstrated in an in silico setting that the major components of RDEO, specifically -citronellol, geraniol, and nerol, could be accommodated favorably within the allosteric binding pocket of active-state human M-1 mAChR and anchored here chiefly by hydrogen-bonding and alkyl-pi interactions. Conclusion: Our findings offer a solid experimental foundation for future RDEO-based medicinal product development for patients suffering from AD.Article Citation - WoS: 3Citation - Scopus: 3Which Factors Affect Internalized Stigmatization in Adolescents With Mental Disorders?(Wiley, 2022) Dikec, Gul; Bilac, Oznur; Kardelen, Cansin; Sapmaz, Sermin Yalin; Kandemir, HasanPurpose: The aim of this descriptive study was to determine the factors affecting internalized stigmatization of adolescents with mental disorders. Method: The study data were collected in a university hospital between August 1, 2020 and July 30, 2021 (n = 123), using a Personal information form and the Internalized Stigmatization of Mental Illness-Adolescent Form (ISMI-AF). Results: Gender and the number of hospitalizations were determined to be independent variables with explanatory power in the ISMI-AF, and in the model created with these variables, it was determined that these variables explained 18% of the change in the total points of the ISMI-AF. Conclusions: It could be recommended that psychosocial programs are developed with the aim of decreasing internalized stigmatization and increasing the psychological resilience of adolescents.Article Citation - WoS: 6Citation - Scopus: 5The Effect of Melatonin on Glycoprotein Levels and Oxidative Liver Injury in Experimental Diabetes(Wiley, 2023) Ertik, Onur; Sener, Goksel; Yanardag, RefiyeIn this present study, the duration of melatonin (Mel) administered to diabetic rats was prolonged so as to examine its effects on the biochemical liver parameters of diabetic rats. In the experiment, Male Sprague Dawley rats were divided randomly into five groups; the control, diabetic + Mel, diabetic, diabetic + insulin, and diabetic + Mel + insulin. Diabetes mellitus was induced by administration of a single dose of streptozotocin (60 mg/kg) intraperitoneally and rats were given vehicle as a solvent for Mel every day for 12 weeks. In the diabetic + Mel group, diabetic rats were administered Mel (10 mg/kg/day) for 12 weeks to treat diabetes. The diabetic + insulin group were diabetic rats given insulin (6 U/kg) subcutaneously for 12 weeks. The diabetic + Mel + insulin rats received insulin and Mel at the same dose and time. At the end of the experiment, the animals were decapitated and liver tissues were taken. The protective effect of Mel on liver tissue of diabetic rats was investigated, total antioxidant status, total oxidant status, reactive oxygen species, oxidative stress index, adenosine deaminase, xanthine oxidase, paraoxonase 1, sodium/potassium ATPase, myeloperoxidase, gamma-glutamyl transferase, sorbitol dehydrogenase, tumor necrosis factor-alpha, homocysteine, nitric oxide, glucose-6-phosphate dehydrogenase, and glycoprotein levels were determined in liver tissues. Treatment with Mel and/or insulin has been found to have a protective effect on biochemical parameters. The results showed that administration of Mel to diabetic rats prevented the distortion of the studied biochemical parameters of liver tissues.