Sağlık Bilimleri Enstitüsü Diğer Yayınlar Koleksiyonu
Bu koleksiyon için kalıcı URI
Güncel Gönderiler
Öğe The tdq-60 tr-a picture-naming test to assess anomia in Turkish adults and the elderly: normative data and validation study in alzheimer's disease and mild cognitive impairment(2025) Karalı, Fenise Selin; Tosun, Samet; Eskioğlu, Elif İkbal; Çınar, Nilgün; Macoir, JoëlObjective: Anomia is defined by difficulty in retrieving content words like nouns and verbs from long-term memory, independent of any impairments related to articulatory movements or motor speech execution. The tools for measuring picture naming, the conventional method for assessing anomia, are very limited in Turkey. The aim of this study was to adapt the Test de Dénomination de Québec—60 images/Quebec picture-naming test—60 pictures (TDQ-60), a color picture-naming test for adults and the elderly into Turkish, establish its validity, and develop normative data adapted to the Turkish population to address this gap. Method: We conducted three separate studies. The objective of Study 1 was to culturally adapt the Test de Dénomination de Québec—60 images. In Study 2, we developed normative data for the TDQ-60 Tr adapted to the adult and elderly population in Turkey based on the performance of 414 community residents aged 18 years and older. In Study 3, the known-group validity, the convergent validity, and the test–retest validity of the TDQ-60 Tr were determined. Results: The results show that the TDQ-60 Tr is reliable in distinguishing participants with Alzheimer’s disease and mild cognitive impairment from healthy participants. The TDQ-60 Tr measures the same cognitive construct as the Boston Naming Test and also has a high test–retest reliability. Conclusions: In summary, the TDQ-60 Tr is a valid and reliable instrument for assessing naming abilities in adults and the elderly. The results of this study have significant implications for the assessment of naming ability in Turkish-speaking patients. Our work serves as a crucial connection to address the lack of tools for diagnosing anomia in Turkey.Öğe Trimethylamine n-oxide (tmao) and tnf-α levels in periodontal disease associated with smoking(2025) Bal, İpek; Balcı, Nur; Sorguç, Cem; Uslu Toygar, Hilal; Ceran Serdar, Ceyhan; Kurgan, Şivge; Serdar, MuhittinAims: Trimethylamine N-oxide (TMAO) is a compound involved in the pathogenesis of various systemic inflammatory diseases, including cardiovascular conditions. The aim of this study was to determine differences in saliva and serum levels of TMAO between periodontitis and healthy patients according to smoking status. Methods: The study included four systemically healthy groups: periodontally healthy non-smokers (NS-Control; n = 25), non-smokers with Stage-III-Grade-B periodontitis (NS-Periodontitis; n = 25), periodontally healthy smokers (S-Control; n = 25), and smokers with Stage-III Grade-C periodontitis (S-Periodontitis; n = 25). Periodontal parameters were recorded. TMAO levels were determined in saliva and serum samples using liquid chromatography-mass spectrometry (LC–MS/MS). TNF-α levels were measured by the ELISA method. Results: Salivary TNF-α and TMAO levels were significantly elevated in the smoking periodontitis group compared to other groups (p < 0.001 and p = 0.003, respectively). Serum TMAO levels were also significantly higher in the smoking periodontitis group compared to non-smoking controls and non-smoking periodontitis. TMAO/SFR ratios were notably higher in the smoking periodontitis group compared to other groups, and a strong positive correlation was observed between salivary TMAO and TNF-α levels (r = 0.892, p < 0.001). Conclusion: The data suggested that TMAO and TNF-α are associated with inflammatory mechanisms of periodontitis in cases where periodontitis coexists with smoking. Trial Registration: NCT06580431.Öğe Frontocentral delta and theta oscillatory responses are sensitive to sleep deprivation during a working memory task(2025) Yırıkoğulları, Harun; Dalmızrak, Esra; Güntekin, BaharSleep deprivation has become a severe public health problem in modern societies. Negative consequences of prolonged wakefulness on cognitive abilities have been demonstrated and working memory is one of the main cognitive functions that can be affected by sleep deprivation. This study aims to investigate the effects of sleep deprivation on working memory through EEG event-related oscillations. Thirty healthy young adult university students and graduates were included in this study (15 rested control – 15 sleep-deprived). A 2-back task was used to evaluate working memory, and both groups performed the task during EEG recording. The sleep-deprived (SD) group was required to stay awake for 24 h, and then the EEG session was conducted. The rested control (RC) subjects participated in the morning after a regular night's sleep. Event-related power and phase-locking analyses were applied, and delta (1–3.5 Hz), theta (4–6.5 Hz) and alpha (8–13 Hz) frequencies were investigated in the time-frequency domain. In the 2-back task, significantly prolonged reaction times were observed in the SD group. However, the decrease in accuracy rate was not significant. The EEG analyses revealed that the SD group had decreased frontocentral event-related delta and theta power responses after the presentation of stimuli. Moreover, task accuracy was positively correlated with the left frontocentral delta power in the SD group, and theta power in the RCs. Thus, we propose that the adverse effects of sleep deprivation on working memory can be observed through low-frequency oscillatory responses in the brain.Öğe Migrant women's perception toward cervical and breast cancer screening in Türkiye: a qualitative analysis(2025) Altaş, Zeynep Meva; Sezerol, Mehmet AkifIntroduction: This study aims to investigate the knowledge, attitudes, and behaviors of Syrian migrant women regarding breast and cervical cancer screenings in the Sultanbeyli district of Istanbul. Methods: The women were recruited from Extended Migrant Health Centre, which is a primary health care institution in Istanbul. In August 2024, face-to-face interviews were conducted using an open-ended, semi-structured question form administered by a nurse experienced in qualitative research. Sociodemographic information, their thoughts on cancer, information on the types of cancers screened and sources of information, their participation in cancer screenings, and their perspectives on cancer screenings were asked. Results: In depth interviews were conducted with 40 migrant women. Four main themes and thirteen sub-themes were identified. These themes include “Opinions about the cancers and information about the cancer screenings” “Attitudes about the cancer screening program” “Perspectives on preventive measures against cancers” and “Problems in access to health services”. Women mostly described cancer as a serious, incurable, and fatal disease. Despite this perception, almost half of the participants had not attended cancer screening programs. The majority said they did not undergo screening because they had no symptoms. The other main barriers for participation included lack of knowledge, fear of receiving a negative result, or fear of the procedures involved. Conclusions: Based on this study, migrant women have low level of attendance to breast and cervical cancer screening programs. Besides, they lack adequate information about breast cancer and cervical cancer, the screening protocols and preventive measuremets.Öğe Investigation of the effect of ultraprocessed food consumption on asthma using pulmonary function tests(2025) Özçalkap İçöz, Rümeysa; Alpaslan, Mehmet; Tural, SedaBackground: NOVA is a food classification system that classifies foods according to the scope and purpose of food processing, rather than nutrients. Asthma is usually characterized by chronic inflammation and respiratory symptoms such as wheezing, shortness of breath, chest tightness, cough, and variable expiratory airflow limitation. According to the NOVA food classification system, consumption of ultraprocessed foods (UPF) can affect asthma symptoms. Aim: In this study, the relationship between UPF consumption and pulmonary function test (PFT) results of asthma patients in adults aged 18 to 65 was investigated using biochemical parameters. Methods: This study was a cross-sectional study and, was conducted with 339 asthmatic participants diagnosed with asthma and receiving medical treatment. The participants' consumption of UPF was determined using a food frequency questionnaire. The evaluation of forced expiratory volume in one second (FEV1 ) (L/s) and forced vital capacity (FVC) (L/s) in the respiratory function tests was based on the percentage of the measured and expected values. Results: Although no significant relationship was found between % FEV1 expected value and UPF consumption (P > 0.05), it was concluded that % FVC expected and % FEV1 /FVC values decreased with increasing UPF consumption (P < 0.05). Conclusion: It has been concluded that consumption of UPF worsens respiratory function and asthma prognosis. Therefore, replacing UPF and beverage products with healthier foods or food processing methods will play an important role in maintaining health.Öğe Antibiotic-derived approaches in cancer therapy: effectiveness of ikarugamycin in hexokinase-2 inhibition, tissue factor modulation, and metabolic regulation in breast cancer(2025) Akgül Obeidin, Serra Vildan; Şenol, Maşite Şehadet; Doğru Köseoğlu, Zeynep; Bayramoğlu, Feyza; Dişli, Sevgi; Yiğitbaşı, Türkan; Emekli, NeslinWe aimed to explore the role of ikarugamycin (IKA) in breast cancer, its connection with hexokinase-2 (HK-2) repression, and tissue factor (TF). This study sought to extend the role of HK-2 as a TF activator in a comprehensive analysis of these interactions from the enzyme, gene, and protein levels. The investigation was performed with MDA-MB-231 and MCF-7 breast cancer lines. The oxidative stress index (OSI), lactate production, and HK activity were assessed using colorimetric assays. Western blot and quantitative PCR analyses were performed to determine HK-2 and TF expressions. Prothrombin time Tests additionally assessed the effect of IKA therapy on TF activation. Three over four significantly downregulated genes were identified after a specific analysis of the IKA’s effect on HK-2 and TF in breast cancer cell lines. In the IKA treatment group, lactate production was markedly reduced (P < 0.05) and hexokinase activity was found to be reduced in all groups (P < 0.05, <0.01). Paclitaxel cytotoxicity independently causes lower OSI in all IKA-treated groups as compared to controls even though OSI is elevated in IKA groups compared to control. Molecular analysis results demonstrated significantly downregulated HK-2 and TF expressions at the protein level (P < 0.05, P < 0.01). Partial thromboplastin time results also showed that IKA-treated cells had longer TF activation duration. A potential indirect association of HK-2 inhibition and TF regulation in breast cancer cells is put forward in this study by presenting IKA’s bioactivation of breast cancer in all gene, protein, and enzyme levels.Öğe Turkish validity and reliability study of the psychological food involvement scale: PFIS-TR(2025) Şahin, İrem Nur; Atar, Aslıhan; Yaman, Özge; Pulat Demir, HalimeBackground: This study aimed to adapt the Psychological Food Involvement Scale (PFIS) to Turkish culture and test its validity and reliability. The PFIS measures individuals’ psychological, emotional, and social relationships with food, which significantly impact eating behaviors and health. Methods: The study was conducted with 478 participants aged 18–65. The PFIS underwent a six-stage translation and cultural adaptation process. Data collection was carried out via Google Forms, with participants completing a general information form, PFIS, and the Addiction-like Eating Behavior Scale (ALEBS). Reliability was assessed using the test-retest method. SPSS 24 was used for statistical evaluation, including internal consistency coefficient calculations, factor analysis, and correlation tests. Results: The Kaiser-Meyer-Olkin value was 0.94, indicating an adequate sample size, and Bartlett’s test of sphericity was significant (p < 0.05). Exploratory factor analysis revealed a four-factor structure explaining 79% of the variance, with factor loadings > 0.40 and eigenvalues > 1. Confirmatory factor analysis showed good fit indices: χ2 /sd = 2.28, GFI = 0.95, AGFI = 0.93 CFI = 0.98, NFI = 0.94, RMSEA = 0.05, SRMR = 0.04). Internal consistency analysis showed high reliability, with Cronbach’s Alpha coefficients ranging from 0.86 to 0.94 across subscales. Conclusion: The Turkish version of the PFIS was found to be a valid and reliable tool for assessing psychological food involvement in the studied sample of the Turkish adult population.Öğe Dose-dependent effect of a new biotin compound in hippocampal remyelination in rats(2025) Yuluğ, Burak; Kılıç, Ertuğrul; Oğuz, Tuba; Orhan, Cemal; Er, Beşir; Tuzcu, Mehmet; Şahin, KazımDemyelination is commonly observed in neurodegenerative disorders, including multiple sclerosis (MS). Biotin supplementation is known to stabilize MS progression. To reduce the effective dose of biotin, we synthesized a new and superior form of biotin, a complex of magnesium ionically bound to biotin (MgB) and compared its dose-dependent effect with biotin alone after inducing demyelination using lysolecithin (LPC) in rats. Myelination was assessed using luxol fast blue staining and immunostaining against MBP protein, revealing that the most significant remyelination occurred in the MgB groups. Additionally, both biotin and MgB-treated animals showed dose-dependent improvements in spatial memory. Moreover, we detected a decrease in inflammatory proteins in both treatment groups, which was more prominent in high-dose MgB-treated animals and correlated with decreased expression of NF-kappa B p65, OP, and MMP-9 proteins. Further analysis of biotin-related proteins demonstrated that both biotin and, notably, MgB reversed the demyelination-dependent reduction of these proteins. Furthermore, biotin, particularly MgB, improved neuronal transmission proteins, Synapsin-1, PSD-93, and PSD-95. Additionally, both treatment groups exhibited increased BDNF, GAP43, and ICAM levels, with significant increments observed in high-dose MgB-treated animals. Increased GFAP, indicative of reactive gliosis, was observed in LPC-treated animals, and this effect was notably reversed by high-dose MgB treatment. The current data emphasize the dose-dependent beneficial effect on the remyelination process. Furthermore, the combination of biotin with Mg resulted in a more potent effect compared to biotin by itself. The strong influence of MgB encourages proof-of-concept studies using MgB in patients with MS.Öğe Letter comments on 'analysis of age- related changes in midfacial fat compartments in Asian women using computed tomography'(2025) Erpek Paçacı, Selin; Yüzbaşıoğlu, Neslihan...Öğe Relationship between anatomical and physiological problems with speech problems in Turkish-speaking children with cleft lip and palate(2024) Birol, Namık Yücel; Ünal Logacev, ÖzlemObjective: The aim of this study was to describe the speech and resonance characteristics of Turkish-speaking children with cleft lip and palate (CLP) and to investigate the relationship between oral anatomical-physiological problems and speech-resonance problems. Materials and Methods: 40 Turkish-speaking children with CLP between the ages of 3 and 15 underwent oral-motor evaluation, nasometric evaluation (The Nasometric Assessment Tool-Turkish), articulation evaluation (sentence repetition test), and perceptual resonance evaluation. Results: The most common speech errors seen in the participants were backing, differentiation of glides, voicing errors, labialisation, nasalisation, palatalisation, dentalisation and lateralisation. 35% of the participants had normal resonance, while the remaining 65% had resonance-airflow problems. A significant relationship was found between hypernasality and nasalisation, weak articulation, and double articulation. A significant relationship was found between class III malocclusion and dentalisation, lateralisation, bilabialisation; crossbite and lateralisation; missing teeth and dentalisation, palatalisation, fronting. Conclusion: There is a relationship between dental and occlusal anomalies and speech errors and between hypernasality and speech errors. In addition to articulation errors, phonological processes may also be present in Turkish-speaking children with CLP. The results of this study can be taken into consideration by speech and language therapists while conducting assessments and providing interventions for Turkish-speaking children with CLP.Öğe Does the healthy plate model workshop improve nutrition knowledge, behaviors, and habits in school-age children? the impact of workshop on dietary habits: original article(2025) Şimşek Şahin, Hatice; Özkaya, VolkanBackground: This study was conducted to identify the impacts of the healthy plate model workshop on 4th-graders nutrition knowledge, behaviors, and habits. Methods: The study was conducted from March to June 2023 in the Uskudar district of Istanbul, involving 102 children (50% girls) with a mean age of 10.2 ± 0.45 years. A pretest-intervention-posttest design was used for the research. Before and after the training, a questionnaire was administered to measure students’ demographic characteristics, physical activity status, adherence to the Mediterranean Diet, frequencies of food group consumption, and nutritional knowledge. Results: The number of students consuming eggs, legumes, vegetables, fruits, and oilseeds daily increased after the training (p > 0.05). Increases were observed in daily consumption of meat group and water (p < 0.05). While the proportion of students who consumed whole fruit with skin was 35.3% before the training, this rate increased to 47.1% after the training (p < 0.05). The mean nutritional knowledge score (before: 71.37 ± 11.8; after: 80.45 ± 1.6, p < 0.05) and the Mediterranean Diet Quality Index (KIDMED) score (before: 4.77 ± 2.41; after: 5.50 ± 2.45, p < 0.05) increased significantly after the training. A weak positive correlation was identified between pre-training nutritional knowledge scores and KIDMED index scores (r = 0.19; p = 0.045). Furthermore, a negative weak relationship was observed between post-training nutritional knowledge scores and meal-skipping status (r=-0.231; p = 0.019). Conclusions: Structured nutrition education for school-age children can positively impact their nutritional knowledge and dietary habits.Öğe Modelling intra-sinus fluid movements and drainage through computational fluid dynamics before and after maxillary sinus augmentation: a simulation-based pilot study(2025) Güldiken Sarıkaya, İpek Necla; Tekin, Alperen; Suda, Fatih; Çukurova Yilmaz, Zeynep Gülen; Özcan, MutluObjectives: Sinus lifting, a procedure to augment bone in the maxilla, may cause complications such as sinusitis due to impaired drainage. This study aimed to assess how sinus lifting impacts airflow in the sinus cavity, which is essential for patients undergoing dental implants. Using computational fluid dynamics (CFD), this research analyzed airflow changes after sinus floor elevation, offering insights into the aerodynamic consequences of the procedure. Methods: Digital modeling and CFD analysis were performed using patient cone-beam computed tomography data. Three different sinus elevation scenarios, each with varying implant heights, were simulated. Airflow simulations were conducted to assess how reshaping the sinus cavity affects aerodynamics and airflow dynamics. Nasal resistance, calculated through pressure drops and flow rates, and wall shear stress, indicating potential mucosal damage, were evaluated. Results: Although some airflow changes occurred post-surgery, the implants primarily affected the front and rear of the elevated area, with little impact being seen on air entry points. Conclusions: Maxillary sinus lifting for dental implant placement may impair sinus drainage, especially at higher elevations, increasing the risk of mucosal damage due to intensified airflows in the reduced sinus volume. A more uniform, simplified intra-sinus structure may enhance fluid dynamics and reduce complications.Öğe The influence of obesogenic environments on diet self-efficacy and physical activity among healthcare workers: a multicenter study(2024) Sezerol, Mehmet Akif; Altaş, Zeynep Meva; Aslan, Melek Nur; Halaç, ŞeymaBackground: The aim of the study was to determine the level of dietary self-efficacy, physical activity and obesogenic environment in several districts of Istanbul and to examine the relationship between them. Methods: In this cross-sectional study, a questionnaire was administered to primary health care workers working in three different districts of Istanbul. Sociodemographic questions, Dieting Self-Efficiency Scale (DSES), The Assessment of the Obesogenic Environment Scale (AOES), and International Physical Activity Questionnaire (IPAQ) were used in the survey. p < 0.05 was determined as the level of statistical significance. Results: A total of 639 healthcare workers responded to the study. The median age of the participants was 39.0 years (min-max: 21.0–67.0). Male and single participants had significantly higher DSES scores (p = 0.014, p = 0.016, respectively). Male participants and those with lower income and education level had significantly higher scores on the AOES (p = 0.025, p = 0.024 and p = 0.024, respectively). According to the IPAQ, 56.8% (n = 283) of the participants were minimally physically active, 29.7% (n = 148) were inactive and 13.5% (n = 67) were very active. Those who were physically minimally active and very active had significantly higher DSES scores and significantly lower AOES scores than those who were inactive (p < 0.001 and p = 0.011). There was a significant negative correlation between the DSES and AOES (r=-0.263, p < 0.001). Conclusion: In this study, the evaluation of the concepts of dietary self-efficacy, physical activity level and obesogenic environment in healthcare professionals, who can be role models in the society, may contribute to the studies and intervention strategies for the whole society.Öğe The impacts of avatar movements in different velocities on users’ performances related with body perception: preliminary results from a novel desktop application(2024) Dilek, Burcu; Tavlı, Elif Yaren; Yaşar, Eray; Akbaş, Senanur; Yılmaz, Emre; Hanoğlu, Lütfü; Akgül, Yusuf SinanIn our study, a desktop software program was developed to assess the right-left distinction from different personal perspectives. It was aimed to evaluate the ability of users to make right-left body movements of the avatar on their own bodies according to differently categorized perspective perceptions. 146 healthy volunteers were included into the study. Avatar movements were categorized into different view levels and direction of views and presented into two different conditions named as “normal” and “fast”. As a result of changes made to the velocity of avatar movements, users responded with higher values in terms of shoulder abduction angle values and faster in terms of reaction time. We can conclude that the velocity is one of the important parameters that effect the physical performances of the users on seeing avatars from different perspectives.Öğe A mobile application program that configures right-left hand recognition according to the degree of mental rotation difficulty(2024) Dilek, Burcu; Tavlı, Elif Yaren; Yılmaz, Emre; Yaşar, Eray; Akbaş, Senanur; Hanoğlu, Lütfü; Akgül, Yusuf SinanRight-left discrimination is evaluated with “hand lateralization” and accepted as a criterion of body recognition. In this study, a mobile application assessment method was developed in which the right-left discrimination was categorized within the concept of mental rotation. The objective was to elucidate the variations in users' responses to hand images presented at varying degrees of rotation. Participants' accuracy rates, reaction times, and test completion times were compared across the different difficulty levels in the mobile application. The findings revealed that as the task progressed from easier to more challenging categories, the accuracy rate declined, while both reaction time and test completion time increased. Assessing hand lateralization by presenting a software program where mental rotation tasks are categorized from easy to difficult may guide clinicians to follow the individuals' performance. As a result, clinicians may have a chance to assess their patients’ potential on this performance and to integrate them to a particular therapeutic training program.Öğe Quantitative analysis of ankle spasticity through electromyography signal(2024) Gürlük, Ayşe; Bilal, Hafiz Muhammad; Hocaoğlu, ElifThis study presents a more accurate evaluation method for assessing ankle spasticity compared to conventional goniometric techniques by utilizing measurements obtained from Inertial Measurement Units (IMU) and surface electromyography (sEMG) devices. Integrating IMU and EMG sensors provides substantial benefits for accurately determining the range of motion (ROM) associated with spasticity during targeted movements. In this study, the proposed method provides precise measurement and an objective evaluation of onset time detection of antagonistic muscle co-contraction, and accordingly the ROM of the actuated joint. Moreover, the implementation of cost-effective wearable sensors enables the monitoring of muscle spasticity in clinical environments and can be particularly valuable in regions with limited access to experienced therapists, providing a more efficient approach to tracking spasticity levels.Öğe Deciphering the concurrent phenomenon of childhood malnutrition by using the extended composite index of anthropometric failure (ECIAF): facts from the BESLEN project(2024) Dumlu Bilgin, Gözde; Kaya Cebioǧlu, İrem; Kavsara, Hasan Kaan; Sarıoǧlu, Aybüke; Keküllüoǧlu Tan, Melis; Aydın, Sema; Okan Bakır, BinnurObjective: To investigate the co-existence of single and multiple anthropometric failures among children using an extended composite index of anthropometric failure (ECIAF). This study aims to elucidate the complex interplay between child-specific and maternal factors, highlighting the multifaceted nature of childhood malnutrition. Design: A multicentre cross-sectional study as part of the BESLEN project Setting: Mother-Child Education Centre in the Pendik district of Istanbul, TÜrkiye Participants: 1283 children (preschool children, n 822, school-aged children, n 462) and 1044 mothers Results: Almost 1/3 of the children included in the study had an anthropometric failure as determined by ECIAF. Weight excess was the leading cause of the total anthropometric failures, most of which were observed to be slightly higher in boys, except for stunting only and co-occurrence of stunting and underweight. Among the mother-related factors, including higher BMI and waist circumference, low maternal age at delivery, low number of children in the household and being a single parent may be considered predisposing factors to any phenomenon of childhood malnutrition. Among child-related factors, birth weight being ≥ 3500 g had a higher risk for ECIAF failure, and children aged ≥ 60 months were more likely to experience stunting and underweight, while those < 60 months had a higher prevalence of weight excess. Conclusions: The co-existence of stunting and overweight, the occurrence of weight excess in one in three stunted children and the high risk of central obesity are public health concerns. Also, ECIAF can better assess all aspects of childhood malnutrition than conventional measures.Öğe Comparison of the effects of orthoses on hallux valgus angle and plantar pressure in individuals with hallux valgus(2025) Çamur, Hüsnanur; Özdemir Görgü, SenaBackground:Hallux valgus (HV) is a condition characterized by the lateral deviation of the first phalanx and medial deviation of the first metatarsal, leading to subluxation of the first metatarsophalangeal joint. Various orthotic applications are employed in the treatment of HV deformity. This study aimed to compare the effects of a toe separator (TS) and dynamic orthosis (DO) on hallux valgus angle (HVA), plantar pressure (PP), and quality of life (QoL).Methods:Thirty individuals aged between 18 and 65 years who had mild to moderate HV deformity were included in our study. Participants were randomized into TS and DO groups. Pretest and post-test evaluations at 4 weeks included goniometric measurement for HVA, PP measurement using the Sensor Medica device, QoL assessment using the American Orthopaedic Foot & Ankle Society-Hallux MTP-IP Scale and Manchester-Oxford Foot Questionnaire, and numerical evaluation scale for orthosis satisfaction.Results:No statistically significant changes were observed in HVA measurements (p > 0.05). In the DO group, significant differences were observed in PP assessment for right rearfoot loading (p = 0.048) and total average pressure measurement of the right foot (p = 0.025). QoL assessments were observed significant differences in the DO group compared with the TS group (p < 0.05).Conclusions:After a 4-week period of wearing the TS and DO orthoses, no change in HVA was observed. In the DO group, a more balanced load distribution between the right and left foot (50.2% left, 49.8% right) and a more pronounced effect in reducing deformity-related pain and improving QoL by increasing functionality were noted.Öğe Comparison of youtube and youtube shorts videos about clear aligners(2024) Yılancı, Hilal; Canbaz, BarışObjectives: The aim of this study was to compare the quality and characteristics of information about clear aligners between YouTube and YouTube Short videos. Material and Methods: YouTube video was searched using the keyword “aligner.” After ranking the results according to relevance, 100 of the first 157 YouTube videos and 100 of the first 140 YouTube Shorts were evaluated. Videos were classified into five groups as dentist/specialist, hospital/clinic/university, commercial, layperson, and other. The video information and quality index (VIQI) and DISCERN index were used to evaluate the quality and usefulness of the videos. Data were analyzed using International Business Machines(Ibm) Statistical Package for the Social Sciences (SPSS) statistics version 23. Level of significance was accepted as P < 0.05. Results: Only 9% of YouTube videos, content quality was found to be good. As DISCERN scores decreased, a significant decrease was present in the number of views, comments, likes and dislikes, total video length, VIQI, viewer interaction, and viewing rate. The United States of America (USA) was the leading country by producing 54% of YouTube videos. However, India was the predominant source of YouTube Shorts videos, with 83%. Invisalign was the most frequently mentioned brand of aligner in both YouTube and YouTube Shorts videos. Conclusion: Orthodontists should be aware that the data available on the internet is incorrect or insufficient and should guide their patients correctly with additional data. Likewise, they should guide them on how to access up-to-date and accurate data.Öğe Validity and reliability of the Turkish version of the Düsseldorf orthorexia scale (tr-dos) and the prevalence of orthorexia nervosa among Turkish university students(2025) Kavsara, Hasan Kaan; Gül Koyuncu, Açelya; Dere Yelken, Handenaz; Barthels, Friederike; Stroebele Benschop, NanetteOrthorexia Nervosa (ON) is characterized by an excessive preoccupation with healthy foods accompanied by the avoidance of self-declared unhealthy options, yet it remains unrecognized in major diagnostic guidelines. The Düsseldorf Orthorexia Scale (DOS), a 10-item self-report questionnaire using a four-point Likert scale, assesses the obsession with healthy eating. This study evaluates the reliability and validity of the TR-DOS in the Turkish context and estimates the prevalence of ON among university students. Several studies have shown that translating the DOS into various linguistic groups may exhibit different models of DOS scores. However, the psychometric properties and model fit of the DOS have not yet been investigated in Turkish-speaking populations; to address this gap, we assessed the psychometric properties of a Turkish translation of DOS (TR-DOS) in a sample of 425 university students in Türkiye. The TR-DOS revealed a 7.3% ON prevalence and a 9.0% risk of development. Weak positive associations were observed between TR-DOS total scores and BMI (r = 0.152, p =.002). Exploratory Factor Analysis confirmed the validity of TR-DOS (KMO = 0.867) with satisfactory reliability (Cronbach’s alpha = 0.854). Confirmatory Factor Analysis indicated an acceptable fit for the TR-DOS model (χ2/df = 3.127, RMSEA = 0.071, SRMR = 0.046, IFI = 0.955, CFI = 0.955, GFI = 0.956, TLI = 0.932). Moderate positive correlations were found between TR-DOS and eating disorder measures (EAT-26: r = 0.428, p <.001; EDE-Q-13: r = 0.430, p <.001). The findings demonstrated that the TR-DOS is both culturally appropriate and psychometrically adequate for Turkish university students. It is a reliable and valid instrument for assessing obsessive healthy eating behaviors in this population.
