PubMed İndeksli Yayınlar Koleksiyonu

Permanent URI for this collectionhttps://hdl.handle.net/20.500.14627/8

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Citation - WoS: 2
Citation - Scopus: 3
Effect of Pacifier and Pacifier With Dextrose in Reducing Pain During Orogastric Tube Insertion in Newborns: a Randomized Controlled Trial
(Springernature, 2024) Akkaya-Gul, Aysenur; Ozyazicioglu, Nurcan
OBJECTIVE: This study aimed to assess the efficacy of pacifier use, with and without 25% dextrose, in reducing pain during orogastric tube insertion in newborns. STUDY DESIGN: In a randomized controlled trial involving 60 newborns at a public hospital from April to December 2019,participants were divided into three groups: pacifier (n=20), pacifier with 25% dextrose (n=20), and control (n=20). A pacifier, with and without dextrose, was used for the experimental groups, while the control group performed a routine procedure. Neonatal infant pain scale, crying duration, heart rate (HR), and oxygen saturation (SpO2) were evaluated. RESULTS: Results indicated that the control group experienced significantly higher pain levels, elevated HRs, decreased SpO2, and prolonged crying. Conversely, the pacifier with 25% dextrose group showed a notable reduction in crying duration. CONCLUSION: A pacifier, with and without 25% dextrose, effectively reduces pain and improves physiological and behavioral parameters during orogastric tube insertion.
Citation - WoS: 9
Citation - Scopus: 7
Experiences of Hearing Parents of Children With Hearing Loss: a Qualitative Study
(Mdpi, 2023) Dikec, Gul; Turk, Eda; Yuksel, Esin; Celebi, Kubra; Ozdemir, Meltem
This qualitative study was carried out with a phenomenological design to determine the life experiences of the parents of children with hearing loss. The study sample consisted of twenty parents, who did not have hearing loss, of children with hearing loss registered in a special education and rehabilitation center. The data were collected through in-depth interviews in Istanbul between December and January 2022. Colaizzi's phenomenological interpretation method was used for qualitative data analysis. It was determined that parents of children with hearing loss experienced anxiety, sadness, and happiness during diagnosis. They needed more information at first, but then they gained knowledge in the process, and it took work to accept this process. They stated that having a child with hearing loss requires more time, responsibility, and effort than other children. This situation affects their social life, and they experience interpersonal conflicts. When parents were asked how they coped, they said they did it through prayer, social support, or time to themselves. It can be recommended to apply psychosocial intervention programs to the parents of children with hearing loss, especially their mothers, from the first diagnosis process.
Citation - WoS: 9
Citation - Scopus: 11
The Antioxidant, Anti-Inflammatory, and Antiplatelet Effects of ribes Rubrum L. Fruit Extract in the Diabetic Rats
(Wiley, 2022) Gulmez, Gizem; Sen, Ali; Sekerler, Turgut; Algul, Fatma Kader; Cilingir-Kaya, Ozlem Tugce; Sener, Azize
The prothrombotic and inflammatory state plays a significant role in the occurrence of cardiovascular complications in type 2 diabetes mellitus. In this study, the antidiabetic, anti-inflammatory, and antiplatelet potentials of the extracts obtained from Ribes rubrum were investigated. The antidiabetic, anti-inflammatory, and antioxidant activities of the ethanol and water extracts of R. rubrum were evaluated by in vitro methods. The total phenolic and flavonoid contents were also determined. The experimental diabetes model in rats was induced with streptozotocin (STZ). After hyperglycemia occurred, the ethanol extracts of R. rubrum (RRE, at 100 mg/kg and 500 mg/kg doses) were administered to the treatment groups for 14 days. Blood glucose, lipid profile, plasma, and pancreas tumor necrosis factor-alpha (TNF-alpha) levels were determined and compared at the end of the experiments. P-selectin levels and mitochondrial membrane polarization (MMP) of platelets were also measured. In vitro study, the RRE showed potent anti-inflammatory activity. Administration of RRE (at 100 mg/kg doses) to diabetic rats lowered blood glucose level insignificantly. The results showed that there was an increment in levels of TNF-alpha in plasma and pancreas tissue of the diabetic group compared to the control group. R. rubrum extract regulated and normalized their levels in plasma and pancreatic tissue. RRE at both doses significantly decreased platelet P-selectin levels and prevented STZ-induced loss of MMP in platelets. The results of current research indicate that RRE extract has potent anti-platelet and anti-inflammatory effects and may be beneficial in preventing diabetic complications. Practical applications Hyperglycemia causes dyslipidemia, advanced oxidative stress, platelet activation, and inflammation in diabetes mellitus. Plants with various medicinal properties are of worldwide interest for the treatment of diseases due to their biological activities. In this study, the antidiabetic, anti-inflammatory, and antioxidant effects of extracts of Ribes rubrum (%100 ethanol, 50% ethanol, water) were evaluated by in vitro and in vivo methods. The diabetes model was induced with streptozotocin (STZ). The rats were divided into control, diabetic control, R. rubrum-100 mg/kg, and R. rubrum-500 mg/kg doses groups. Blood glucose levels, tumor necrosis factor-alpha (TNF-alpha), platelet P-selectin levels, mitochondrial membrane polarization of platelets were examined. The present study has shown that R. rubrum has anti-inflammatory and antiplatelet activity. R. rubrum may be beneficial in the prevention and treatment of DM complications due to its anti-inflammatory and antithrombotic effects.
Citation - WoS: 5
Citation - Scopus: 5
Inhibitory Effect of Whey Protein Concentrate on Sars-Cov Furin Activity and Spike Protein-Ace2 Binding in Methotrexate-Induced Lung Damage
(Wiley-hindawi, 2022) Tufan, Elif; Sivas, Guzin Goksun; Gurel-Gokmen, Begum; Yilmaz-Karaoglu, Sumeyye; Ercan, Dursun; Ozbeyli, Dilek; Tunali-Akbay, Tugba
This study aims to investigate the effects of whey proteins on SARS CoV-2 in methotrexate-induced lung tissue damage in rats. To determine the possible effects, rats were divided into four groups as control, control + whey, methotrexate (20 mg/kg, i.p.) and methotrexate + whey. Whey protein concentrate (2 g/kg, oral gavage) was administered for 10 days. Cytokine levels were measured and protein electrophoresis was carried out in serum samples. Lipid peroxidation, nitric oxide and glutathione level, and superoxide dismutase and glutathione S transferase activities were determined in lung samples. Inhibition of SARS CoV-2-targeted lung furin activity and SARS CoV-2 spike protein-angiotensin converting enzyme binding with whey protein concentrate were also measured in each group. In conclusion, whey protein concentrate improved methotrexate-induced lung damage and inhibited lung furin activity targeting SARS-CoV-2 S1/S2 site cleavage and SARS CoV-2 spike protein-angiotensin converting enzyme binding. Whey proteins are potential protective candidates that inhibit SARS CoV-2-related interactions, even in methotrexate-induced lung injury. Practical applications Whey proteins have anticarcinogenic, antihypertensive, antioxidant, antibacterial, antiviral, and immunomodulating properties due to the protein, bioactive peptide, and essential amino acid content. Methotrexate is a folate antagonist and inhibits cell proliferation and purine synthesis. The combined use of whey protein concentrate and methotrexate may be an alternative in the development of new strategies to the treatment approaches against COVID-19. In addition, according to the results of this study, it is thought that the protective effect of whey proteins in healthy conditions before encountering the SARS CoV-2 may be higher than those who have never used it.
Citation - WoS: 2
Citation - Scopus: 4
Seroprevalence of Torch Viral Agents in Pregnant Women in Turkey: Systematic Review and Meta-Analysis
(Mdpi, 2025) Kilbas, Elmas Pinar Kahraman; Ciftci, Ihsan Hakki; Kilbas, Imdat; Toptan, Hande
Rubella Virus, Cytomegalovirus (CMV), Herpes Simplex Virus-2 (HSV-2), Hepatitis B (HBV) and Hepatitis C virus (HCV) can cause serious fetal disease. The seropositivity rates of these agents vary among countries and geographic regions. This study aimed to analyze the prevalence rates and diagnostic methods used in studies investigating the seroprevalence of viral pathogens in the TORCH group among pregnant women in Turkey between 2005 and 2024. A systematic search was conducted using electronic databases between January 2005 and January 2024. A total of 60 studies meeting the inclusion criteria were included. Data quality control was assessed using the Joanna Briggs Institute guideline prevalence studies checklist. Heterogeneity was measured using the I-squared (I-2) statistic in the Comprehensive Meta Analysis (CMA) program. The average seropositivity rates for Rubella, CMV, HSV-2, HBV and HCV in Turkey were determined as 91.18%, 94.81%, 35.52%, 1.66% and 0.25%, respectively. When the diagnostic methods were examined, it was determined that ELISA and ECLIA methods were used most frequently. The seropositivity of the agents did not show statistically significant differences according to the year periods, geographical regions and age of the patients (p > 0.05). The highest prevalence rates of Rubella and HSV-2 in pregnant women were reported in the Mediterranean region, the highest prevalence rates of CMV and HCV in the Southeastern Anatolia region and the highest seroprevalence of Anti HBs in the Marmara region. The results of this study support the necessity of increasing public awareness in the control of fetal infection caused by TORCH viral agents, prenatal screening, vaccination for Rubella and HBV and compliance with hygiene conditions for agents such as CMV, HSV-2 and HCV. The results of this study highlight the need to increase public awareness on prenatal screening for the control of fetal infection caused by all TORCH viral agents, vaccination for Rubella and HBV and compliance with hygiene conditions for agents such as CMV, HSV-2 and HCV.
Psychometric Evaluation of the Person-Centred Climate Questionnaire - Staff Version
(BMC, 2025) Arici, Furkan Cihat; Harmanci Seren, Arzu Kader; Edvardsson, David
BackgroundValid and reliable instruments are needed to assess person-centredness that serve as quality care indicators. Person-Centred Climate Questionnaire - staff version is an interculturally used tool to evaluate person-centredness in clinical settings. This study aimed to examine the psychometrics of the tool in the Turkish language.MethodsThis was a methodological study involving a sample of 140 nurses. One of the researchers collected data using the Turkish version of the questionnaire-staff version in a private hospital in Istanbul. After performing the language validity steps, the researchers analysed the content validity ratios of the items and the questionnaire's content validity index, and they performed exploratory and confirmatory factor analysis to validate the construct. The internal consistency of the subdimensions and the questionnaire was determined utilising a Cronbach's Alpha test.ResultsThe content validity ratios of the items ranged from 0.84 to 1, and the correlation coefficients ranged from 0.50 to 0.69. The three-factor structure accounted for 70.40% of the total variance. The items' standardised factor loads were between 0.501 and 1.140. The Cronbach's alpha consistency value was 0.90.ConclusionThe staff version of the questionnaire is an adequately valid and reliable instrument in the Turkish language.
Citation - WoS: 3
Citation - Scopus: 4
Prevalence of Obesity in Prepubertal and Pubertal With Turkish Population Type 1 Diabetes
(Springer Japan Kk, 2021) Ozkaya, Volkan; Eren, Erdal; Ozgen Ozkaya, Sebnem; Denkboy Ongen, Yasemin
To determine the prevalence of prepubertal and pubertal obesity in children and adolescents with type 1 Diabetes Mellitus (Type 1 DM). One hundred fifty children and adolescents aged 6-18 years with Type 1 DM who attended the Pediatric Endocrinology Polyclinic and were diagnosed with type 1 DM were included in the study. Tanner staging was used to estimate pubertal status. Age- and gender-specific body mass index (BMI) percentile between 85 and 95% was accepted as overweight and > 95% as obese. It was determined that the overweight prevalence rates in children and adolescents with type 1 DM were 13.3% and the obesity rate was 14.3%. It was found that while the overweight prevalence rates (14.1%) were higher in males, the obesity prevalence was higher in females (19.0%). The obesity prevalence rates at the prepubertal and pubertal stages were found to be 17.1% and 13.8%, respectively. The obesity prevalence at the pubertal stage was higher in girls (22.4%) than boys (3.9%) (p < 0.05). The rates both of overweight and obesity in boys decreased from prepubertal to pubertal periods, while those rates increased in girls. Our results indicated that the obesity prevalence in prepubertal and pubertal children and adolescents with type 1 DM was higher compared to healthy peers in the literature. The authors believe that the risk factors for obesity in this population should be determined and obesity-prevention programs for diabetes should be prepared.
Citation - WoS: 6
Citation - Scopus: 7
Nurses' Views on Change Management in Health Care Settings: a Qualitative Study
(Wiley-hindawi, 2022) Cakiroglu, Oya Celebi; Hobek, Goksu Ulutas; Seren, Arzu Kader Harmanci
Aim To discover nurses' views on change management processes in health care settings. Background Because 'change' is an inevitable fact of today's health care environments, developing change management competencies at all levels is a must to survive and compete for the organisations and professionals in the health care systems. Methods A descriptive qualitative approach was used. The sample consisted of 18 nurses reached by using snowball sampling. The data were collected through semi-structured interviews and analysed using the Colaizzi method in the NVivo12 program. Results The results of the study were collected under three main themes: 'general approaches and initial responses to change', 'factors affecting attitudes toward change' and 'strategic mistakes made by managers during the change process'. Conclusion The study showed that nurses show different reactions to change. Their attitudes towards change could be affected positively and negatively by the relevant factors. Nurses thought that managers were making strategic mistakes during the change process. Implications for nursing management Recognizing the approaches of nurses and managers towards change and increasing awareness of the mistakes during the change process may contribute to the achievement of the change processes in health care settings.
A Guide To Facilitate the Creation of a Femoral Tunnel for Arthroscopic Ligamentum Teres Reconstruction: a Three-Dimensional Computed Tomography Study
(Oxford Univ Press, 2024) Ismailoglu, Abdul Veli; Ismailoglu, Pelin; Zeynalov, Samir, I; Ozdogmus, Omer; Yildizhan, Saliha Elif; Bayramoglu, Alp; Kayaalp, Asim
The ideal femoral tunnel passing through the centre of the femoral neck targeted to the footprint of the ligamentum teres (LT) is established during the LT reconstruction surgery with the free-hand technique. We aimed to quantitatively determine the entry site and define the angular orientation of the ideal femoral tunnel with its relevance to the femoral valgus angle (FVA) and the femoral anteversion angle (FAA) to facilitate the creation of an ideal femoral tunnel during the LT reconstruction surgery. A total of 60 randomly selected CT images were obtained to reconstruct three-dimensional femur models. A virtual reamer representing the ideal femoral tunnel was placed in the femur models. The femur length, FVA, FAA, the femoral tunnel anterior angle, the femoral tunnel superior angle and the skin- and bony-entry sites were measured. The femoral tunnel angular orientation was strongly correlated with the FVA and the FAA. Mathematical formulas were defined by which entry site of the reamer and the anterior and superior angulation of the femoral tunnel could be estimated before the surgery. The mean skin-entry site was 67.3 mm distal and 0.1 mm anterior to the centre of the greater trochanter's superior border. The angular orientation of the femoral tunnel using FVA and FAA can be easily estimated using mathematical formulas before LT reconstruction surgery. The entry site and angular orientation of the femoral tunnel described in this study can be used to reduce dependency on the usage of fluoroscopy and the workload on the surgeon during the LT reconstruction surgery.
Safety and Efficacy of Depatuxizumab Mafodotin Monotherapy or in Combination With Temozolomide in Patients With/Without EGFR-Amplified Recurrent Glioblastoma: A Systematic Review
(Lippincott Williams & Wilkins, 2025) Moghib, Khaled; Hassan, Malak A.; Eljadid, Ghaith Y.; Salomon, Izere; Algazar, Mansour A.; Abu Arafeh, Muhannad Wael; Ibrahim, Ismail A.
This study aimed to assess the safety and efficacy of depatuxizumab mafodotin as a monotherapy or in combination with temozolomide in patients with recurrent epidermal growth factor receptor (EGFR)-amplified glioblastoma multiforme, focusing on overall survival (OS) and progression-free survival (PFS). A comprehensive literature search was conducted across PubMed, Cochrane Library, Web of Science, and Scopus databases up to August 2024. Randomized controlled trials (RCTs) and observational studies were included, comparing depatuxizumab mafodotin alone or with temozolomide in patients with and without EGFR amplification. Data extraction encompassed participant demographics, treatment regimens, and clinical outcomes. Of 102 screened publications, 10 RCTs and cohort studies involving 1431 patients met the inclusion criteria. The included studies examined depatuxizumab mafodotin as a standalone therapy and in combination with other agents, revealing OS ranging from 5 to 14 months and considerable variability in PFS. While depatuxizumab mafodotin shows the potential to improve survival outcomes, the heterogeneity in results highlights the need for further research. Future studies should refine patient selection criteria and explore alternative therapeutic combinations, such as depatuxizumab mafodotin with gemcitabine or cisplatin, to optimize treatment strategies.
Citation - WoS: 2
Citation - Scopus: 2
Correlations Between the Screen Time of Children With Special Needs and Their Parent-Child Relationships, Home Participation, and Occupational Performance
(Taylor & Francis Ltd, 2024) Akyurek, Gokcen; Aydoner, Selen; Gundogmus, Ezginur; Gunal, Rumeysa; Ozan, Aysenur Demir
This study aimed to examine the relationships between the screen time of children with special needs and of their parents with their home participation, occupational performance, and parent-child relationships according to sex and diagnosis. Parents of 150 children with special needs (age range, 4 to 6 years) such as autism spectrum disorder, cerebral palsy, and attention deficit hyperactivity disorder, as well as undiagnosed and developmentally risky children, were included. The Demographic Information Form, Screen Time Usage Form, Parent-Child Relationship Scale, Participation and Environment Measure for Children and Youth, and Short Child Occupational Profile were used for the data collection. There was a significant relationship between the screen time of girls and their parent-child relationships, home participation, and occupational performance. Moreover, we detected a relationship between the screen time of children with autism spectrum disorder and positive parent-child relationships, home participation, and occupational performance. Therapists should account for screen time in their interventions associated with parent-child relationships, home participation, and occupational performance.
Citation - WoS: 5
Citation - Scopus: 5
Paricalcitol Protects Against Hydrogen Peroxide-Induced Injury in Endothelial Cells Through Suppression of Apoptosis
(Frontiers Media Sa, 2023) Koksal, Muhammet Murat; Sekerler, Turgut; Cevik, Ozge; Sener, Azize
The vascular endothelium is one of the main targets of oxidative stress which plays an important role in the pathophysiology of vascular damage. Recent studies show that vitamin D can positively regulate endothelial functions in various chronic diseases and in cases of increased oxidative stress. In our study, we investigated the restorative and protective potentials of paricalcitol which is frequently used in patients with chronic renal failure, a vitamin D analogue, in human umbilical vein endothelial cells (HUVEC) before and after H2O2-induced oxidative stress. Paricalcitol treatment after the oxidative stress induced by H2O2 increased cell viability in endothelial cells depending on the dose that was used. While paricalcitol (500 nM) decreased caspase-3 activity and mitochondrial membrane potential loss, it increased nitric oxide (NO) production and reduced glutathione (GSH) levels. Paricalcitol treatment before oxidative stress increased cell viability. It increased NO production and mitochondrial membrane potential while significantly reducing caspase-3 activity. While paricalcitol caused a significant inhibition of protein disulfide isomerase (PDI) reductase activity in healthy endothelial cells, it did not cause a significant change on the PDI reductase activity under oxidative stress conditions. Present study showed that paricalcitol has restorative and protective effects on endothelial cells against oxidative injury, but these effects occur at high concentrations of paricalcitol.
Citation - WoS: 3
Citation - Scopus: 2
Hepatitis B Immunization Data of Patients Living With Hiv/Aids: a Multi-Centre Study
(Natl inst Public Health, 2022) Ozturk, Servet; Ozel, Ayse Serra; Ergen, Pinar; Senbayrak, Seniha; Agalar, Canan
Objectives: Human immunodeficiency virus (HIV) and hepatitis B virus (HBV) are the two leading viruses that cause the greatest number of virus-related morbidities in the world. HIV/HBV coinfection is correlated with high morbidity and mortality. For this particular reason hepatitis B vaccination is crucial for people living with HIV. Methods: Patients who are being followed-up for HIV/AIDS and who have received a hepatitis B vaccine in 4 HIV clinics over a 5-year time period have been studied. Our multi-centered, retrospective, cross-sectional and observational study investigates factors that affect hepatitis B vaccination immune response of individuals living with HIV. The patients have been studied for the parameters such as age, sex, CD4 count at the time of diagnosis or vaccination, HIV-RNA levels, comorbidities, vaccine dosage, success of immunization after vaccination, and the demographics of the patients who have and have not developed immunity. Results: Of 645 patients that are being followed-up in our clinics, 158 received hepatitis B vaccine; 39 of these 158 patients have been excluded from the study because they did not fulfil the inclusion criteria. Finally, 119 patients were evaluated in the study, 17 of the patients (14.3%) were females and 102 (85.7%) were males. The median age was 41.11 +/- 10.09 (min-max: 18-75). Twenty-three of the patients (19.3%) were at the stage of AIDS during diagnosis while 80.7% were at the stage of HIV infection. Ninety-one of the patients (76.5%) have been administered a single dose hepatitis B vaccine on the standard 0, 1st, 6th month vaccination schedule, whereas 23.5% were administered a double dose on the same vaccination schedule. When further evaluated to find whether the patient was able to develop sufficient immunity (anti-HBs >= 10), it was found that the immune response was statistically significantly higher in the patients whose CD4 count was greater than 200 at the time of the first diagnosis and vaccination (p = 0.05 and p = 0.001, respectively). The patients have also been evaluated according to the number of doses they received (1 vs. 2). The immune response of the patients who received two doses was statistically significantly higher (p = 0.041). Conclusion: We can conclude that in the patients with CD4 count less than 200 at the time of their diagnosis and vaccination a high dose recombinant hepatitis B vaccine should definitely be administered as the normal dose and higher dose have similar side effect profiles and the higher dose provides greater immunity.
Citation - WoS: 2
Citation - Scopus: 3
Player Selection in Football by Integrated Swara-Vikor Methods Under Fuzzy Environment
(Cell Press, 2024) Buyukselcuk, Elif Caloglu; Badem, Eray
This study aims to provide an objective evaluation and selection of the most suitable players for the Turkish National Football Team by using multi-criteria decision-making methods, specifically Stepwise Weight Assessment Ratio Analysis (SWARA) and VIsekriterijumsko KOmpromisno Rangiranje (VIKOR) based on neutrosophic numbers. In the initial step of the study, the important criteria for player selection were determined, and a total of 21 and 26 criteria were identified for goalkeeper and players, respectively. Agility, reflexes and jumping ability are very important for goalkeeper whereas marking, passing ability, agility, dribbling, and footwork are the most important criteria for players. The performances of the players were evaluated due to these criteria and finally the Turkish National Football Team was established scientifically because of the best player selection. This decision-making process will be more beneficial in making more informed and effective decisions in the national team's player selection process. The success of the team can be improved by providing an objective and systematic player selection approach.
Citation - WoS: 4
Is Shoulder Geometry Important for Rotator Cuff Tears?
(Wiley, 2021) Yilmazturk, Kerem; Birinci, Murat; Kuyucu, Ersin; Bulbul, Ahmet Murat
Purpose This study is aiming to evaluate some specific anatomic shoulder parameters such as the lateral acromial angle (LAA), acromial index (AI), coracohumeral distance (CHD) and critical shoulder angle (CSA) in rotator cuff tears. Methods A total of 100 cases consisting of 50 patients with rotator cuff tears and 50 patients without rotator cuff tears, who underwent shoulder MRI (mangnetic resonance imaging) examination in Istanbul Medipol University Orthopedics and Traumatology Department, participated in this study. In this retrospective study, CCA, LAA, AI and CSA were evaluated in MRI in order to shed light on the theories of rotator cuff tears. Results There was no significant difference (P > .05) in acromial index and coracohumeral distance in the patient group. Lateral acromial angle and critical shoulder angle were significantly different in the patient group compared to the control group (P < .05). There was a weak negative correlation between CSA and CHD. Conclusion In our study, we found that patients with smaller LAA and higher CSA values in MRI images are prone to have rotator cuff tears. Further studies are needed in order to evaluate whether this association has predictive value.
Citation - WoS: 3
Citation - Scopus: 4
A Comprehensive Assessment of the Cholinergic-Supporting and Cognitive-Enhancing Effects of rosa Damascena 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, Asli
Introduction: 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.
Citation - WoS: 5
Citation - Scopus: 6
Melatonin Improves Liver and Pancreatic Tissue Injuries in Diabetic Rats: Role on Antioxidant Enzymes
(Springer int Publ Ag, 2023) Ertik, Onur; Bayrak, Bertan Boran; Sener, Goksel; Yanardag, Refiye
PurposeMelatonin (Mel) is an indolamine mainly synthesized by the pineal gland and many other organs. It plays an important role in scavenging free radicals and stimulating antioxidant enzymes. The goal of this study was to investigate the effect of Mel and/or insulin treatment on oxidative liver and pancreas injuries in diabetic rats.MethodsMale Wistar albino rats were assigned into 5 groups. Group I: control animals. Group II: diabetes was induced via a single dose of STZ (60 mg/kg) administered intraperitoneally. Group III: diabetic rats treated with Mel (10 mg/kg/day). Group IV: diabetic rats given insulin (6U/kg) subcutaneously. Group V: diabetic rats that received insulin and Mel at the same dose and time. After 12 weeks of the experiment, the animals were decapitated, liver and pancreas tissues were collected.ResultsThe results indicated that reduced glutathione levels in liver and pancreatic tissue decreased, while protein carbonyl, advanced oxidized protein products and lipid peroxidation levels were elevated in diabetic group. Antioxidant enzyme activities decreased in liver tissues but increased in pancreatic tissues of the diabetic group. Administration of Mel, insulin or Mel + insulin reversed these biochemical changes in the diabetic animals.ConclusionThis work shows that in long-term oxidative stress conditions caused by STZ-induced diabetes, either Mel or Mel + insulin administration may improve the deteriorated oxidant/antioxidant system in both the liver and pancreas tissues. These results suggested that Mel alone or Mel + insulin treatments might have a significant role in protecting against liver and pancreatic damage in STZ diabetic rats via different antioxidant effects.
Citation - WoS: 2
Citation - Scopus: 1
Analysis of Substance Use and Mental Disorder Diagnoses in Adolescents With a History of Delinquency: a Cross-Sectional Study
(Springer, 2024) Baysan Arabaci, Leyla; Dikec, Gul; Tas Soylu, Gulsenay; Bilac, Oznur; Uzunoglu, Gulcin; Ayakdas Dagli, Dilek
This study aimed to evaluate substance use and comorbid mental disorders in delinquent adolescents presenting to a child and adolescent psychiatry outpatient clinic. This study included 47 adolescents aged 15-18 years and had a history of delinquency. Data were collected using the Addiction Profile Index Adolescent Form (API-A) and an information form. Results indicated that the adolescents' mean age is 16.11 +/- 1.05 years, 78.7% had committed crimes against property and 34.0% against the person, and 34.0% were also victims of crime. Mean API-A total scores indicated that their level of substance use was low. In addition, mean API-A total scores showed significant differences according to the adolescents' migration status, age, economic status, school attendance, mental disorder diagnosis, duration of mental disorder, and type of offense (p < 0.05). The benefit provided by timely and appropriate psychosocial interventions may have a key role in solving this problem for adolescents and improving their future as adults.
Citation - WoS: 17
Citation - Scopus: 20
Exercise Improves Testicular Morphology and Oxidative Stress Parameters in Rats With Testicular Damage Induced by a High-Fat Diet
(Wiley, 2022) Elmas, Merve Acikel; Ozakpinar, Ozlem Bingol; Kolgazi, Meltem; Sener, Goksel; Arbak, Serap; Ercan, Feriha
Obesity and male infertility are problems that affect population. Exercise is a nonpharmacological way to reduce the negative health effects of obesity. The purpose of this study was to examine the effects of exercise on hormone levels, blood-testis barrier, and inflammatory and oxidative biomarkers in rats that became obese due to a high-fat diet (HFD). Male rats received a standard diet (STD group) or a HFD (HFD group) for 18 weeks. During the final 6 weeks of the experiment, swimming exercises (1 h/5 days/week) were given to half of these animals (STD + EXC and HFD + EXC groups). Finally, blood and testicular tissues were analysed by biochemical and histological methods. Body weight, leptin, malondialdehyde, interleukin-6, TNF-alpha and myeloperoxidase levels, apoptotic cells and DNA fragmentation were increased, and testis weight, insulin, FSH, LH, testosterone, glutathione and superoxide dysmutase levels, proliferative cells, ZO-1, occludin, and gap junction protein Cx43 immunoreactivity were decreased in the HFD group. All these hormonal, morphological, oxidative and inflammatory biomarkers were enhanced in the HFD + EXC group. It is thought that exercise protected testicular cytotoxicity by regulating hormonal and oxidant/antioxidant balances and testicular function, inhibiting inflammation and apoptosis, as well as preserving blood-testis barrier.
Citation - WoS: 2
Citation - Scopus: 2
Global Health Emergencies During the Pandemic and Their Solutions
(2021) Sencan, Irfan; Bulut, Dilek; Agalar, Canan; Sencan, Ismail Hakki
Abstract: In this review, we evaluated health care problems, which were not common before pandemic outbreak but have been common issues after its appereance and approaches to control pandemic considering its influences on people. We revised current health care developing approaches under the light of experience obtained throughout the pandemic so far. The aim is to be prepared in advance for possible upcoming pandemics. As in Covid 19 pandemics, such long lasting and widely affecting situations, durability is also very important together with flexibility and quickness. To provide durability, we need global policies taking the health to its center as well as health system policies.Key words: Covid-19, health system, emergency, crisis, vulnerability, durability

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