Beslenme ve Diyetetik Bölümü / Department of Nutrition and Dietetic
Permanent URI for this collectionhttps://hdl.handle.net/11413/6827
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Publication Restricted Anxiolytic-Like Effects of Extremely Low Frequency Electric Field in Stressed Rats: Involvement of 5-HT2C Receptors(Taylor & Francis Ltd., 2022) Kantar, Deniz; Acun, Alev Duygu; AFŞAR, EBRU; Yargıçoğlu, PirayeBackground Possible modulatory effects of noninvasive brain stimulation have gained interest recently. In our study, the effect of low frequency electric fields (LF-EF) on stress-induced electrophysiological, behavioral changes and the possible involvement of serotonergic 5-HT2C receptors were investigated. Materials and methods A total of eight groups including the control groups were formed by applying LF-EF with or without a 5-HT2C receptor agonist to naive or acute stress exposed rats to demonstrate the effects of LF-EF. LF-EF administration at 10 kV/m was started 30 min before acute stress application and lasted for 1 h in total. Anxiety levels and social interaction were evaluated using the elevated plus maze test and social interaction test, respectively. Auditory evoked potentials (AEP) were recorded by using ascending loudness paradigms. Loudness dependence AEP (LDAEP) was calculated by using amplitude values to analyze serotonergic transmission. Serotonin and glucocorticoid levels were measured in the frontal cortex and hippocampus. Results It was observed that the applied LF-EF reduced the anxiety behavior, and attenuated the LDAEP responses in stress and/or 5-HT2C receptor agonist applied groups. In parallel, an increase in serotonin levels and a decrease in glucocorticoid levels were observed. However, LF-EF exposure was ineffective in impaired social interaction. Conclusions Our findings show that 10 kV/m LF-EF administration may modulate the neural network and physiological responses associated with mild acute stress. 5-HT2C receptor dependent functions are thought to play a role in the anxiolytic effect of LF-EF.Publication Restricted Assessment of Nutritional Status, Body Composition and Blood Biochemical Parameters of Patients Following Sleeve Gastrectomy: 6 Months Follow Up(Elsevier, 2021) BATAR, NAZLI; Demir, Halime Pulat; Bayram, Hatice MerveBackground and aims: Today, Sleeve gastrectomy (SG) has recently become the most common bariatric procedure among various bariatric surgical procedures due to its advantages. The aim of this study is to investigate nutritional status, body composition and biochemical parameters following SG. Methods: This was a prospective study, the subjects were patients who underwent SG at a special obesity clinic in Istanbul, Turkey, between 01.05.2017 and 01.11.2017. The mean body mass index (BMI) of the participants was 42.15 +/- 4.84 kg/m(2) for men and 41.44 +/- 4.34 kg/m(2) for women, preoperatively. Nutritional status, some anthropometric measurements and blood sampling were taken at each visit. Data were collected and analyzed for the present study at the following periods: pre-operation (pre-op), 1 month, 3 months and 6 months after surgery. Results: A total of 47 SG patients (20 men, 27 women) were evaluated. The mean BMI was 30.23 +/- 3.56 kg/m(2) for men and 30.35 +/- 4.36 kg/m(2) for women after 6 months and the amount of excess weight loss (EWL) increased in the 3 months (p <.001). Mean energy, fiber, vitamin A, vitamin C, vitamin B-1, niacin, vitamin B-12, folate, calcium, magnesium, iron, zinc, phosphorus and iodine were above the Dietary Reference Intake (DRI) recommendations. A significant association was found between protein intake and fat free mass loss in both genders after SG at 6 months (p <.05). Conclusion: Nutrition deficiencies are common for patients after SG. Therefore, it is important to routinely monitor these patients with a professional team. (C) 2021 European Society for Clinical Nutrition and Metabolism. Published by Elsevier Ltd. All rights reserved.Publication Restricted Assessment of the Quality and Reliability of Information on Nutrition After Bariatric Surgery on YouTube(Springer, 2020) BATAR, NAZLI; Yıldız, Nida; Güçlü, Duygu; SEVDİN, SEZEN; KERMEN, SEDABackground YouTube (TM) is a platform that many people, including patients, use to access health information. Recent studies have revealed that videos on YouTube (TM) are misleading or that medical videos may not contain appropriate information. This study aimed to assess the quality and reliability of videos on nutrition after bariatric surgery. Materials and Methods The keywords "after bariatric surgery diet" and "weight loss surgery postop diet" were used, and the first 100 videos for each keyword on YouTube (TM) were analyzed by considering the source, duration, content, and the number of likes of the video. The popularity of the video was calculated using the video power index (VPI) and view rate. The educational quality of the videos was evaluated using the DISCERN score, the Journal of the American Medical Association (JAMA) score, the Global Quality Score (GQS), the usefulness score, and a novel postoperation nutrition score (PONS). Results One hundred fourteen patients were included in the study. The mean duration and number of views were 12.51 min and 87,558.46, respectively. The DISCERN score, JAMA score, GQS, and usefulness score of the physicians or dietician-based videos were significantly higher than those of the patient-based videos (p < 0.001). Positive correlations were found between the VPI and view ratio, as well as between the duration and number of likes. Additionally, the DISCERN score was significant correlated with the duration and number of likes. Significantly positive correlations were found between the usefulness score and duration, usefulness score and number of likes, and PONS and duration (p < 0.01). Conclusions Informational videos on nutrition after bariatric surgery on YouTube (TM) are of low quality. Although the videos uploaded by physicians and dieticians have higher quality, only a few are available. Additionally, patients prefer to watch low-quality videos.Publication Restricted Lockdown Changed Us in Turkey Eating Behaviors, Depression Levels, and Body Weight Changes During Lockdown(Mattioli 1885, 2021) BİÇER, NİHAN ÇAKIR; Baş, Murat; Köse, Gizem; Duru, Pırıl Şenol; Baş, Dilşat; Karaca, Esen; Köseoğlu, SelenNationwide lockdown is a proven strategy to decrease inter-human transmission of the COVID-19. Prolonged home stay may be associated with some potential side effects as weight gain, depression, physical inactivity, unbalanced diet, and behavioral addiction disorders. During March-May of the social lockdown, Turkish adults (n:2955) completed an online sociodemographic form, Beck Depression Inventory (BDI) and Three Factor Eating Questionnaire (TFEQ)-21. During lockdown, 51.1% of the participants gained weight and TFEQ-21, emotional and uncontrolled eating scores were increased (p<0.001). Analysis showed that incraese in body weight was significantly related to the TFEQ-21 score, depression level, having a disease, decreased exercise, increased alcohol consumption, dismissal from work and reduced smoking (p<0.001). There were significant changes in uncontrolled and emotional eating, and cognitive restriction during the lockdown period. Additionally, changes in eating habits and physical activity may influence weight gain.