Person: GÜLPINAR, MEHMET ALİ
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GÜLPINAR
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MEHMET ALİ
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Publication Metadata only Interactive lecturing for meaningful learning in large groups(TAYLOR & FRANCIS LTD, 2005) YEGEN, BERRAK; Gulpinar, MA; Yegen, BCIn order to enhance the quality of integration of physiological basic concepts with clinical sciences and to facilitate problem solving skills, a 'structured integrated interactive' two-hour block lecture on growth hormone physiology was implemented. A template showing the central regulation of growth hormone release and its peripheral effects was developed as an advanced organizer. Based on this template, new information was presented. Student feedback demonstrated that the lecture, based on the expository teaching model and enhanced by different forms of question and problem solving activities, was successful and interactive. It was also more motivating and was able to keep the attention of the students in relatively higher levels throughout the lecture. Furthermore, students felt that they had made important gains in transferable problem solving skills and this opinion was supported by their performance in clinical cases. These findings reinforced the idea that systematic incorporation of active learning strategies into lectures may minimize many of the weaknesses of traditional lectures.Publication Metadata only The physiology of learning and memory: Role of peptides and stress(BENTHAM SCIENCE PUBL LTD, 2004) YEGEN, BERRAK; Gulpinar, MA; Yegen, BCThe neuropeptides, as well as their respective receptors, are widely distributed throughout the mammalian central nervous system. During learning and memory processes, besides structural synaptic remodeling, changes are observed at molecular and metabolic levels with the alterations in neurotransmitter and neuropeptide synthesis and release. While there is consensus that brain cholinergic neurotransmission plays a critical role in the processes related to learning and memory, it is also well known that these functions are influenced by a tremendous number of neuropeptides and non-peptide molecules. Arginine vasopressin (AVP), oxytocin, angiotensin II, insulin, growth factors, serotonin (5-HT), melanin concentrating hormone, histamine, bombesin and gastrin-re leasing peptide (GRP), glucagon-like peptide-1 (GLP-1). cholecystokinin (CCK), dopamine, corticotropin releasing factor (CRT) have modulatory effects on learning and memory. Among these peptides CCK, 5-HT and CRF play strategic roles in the modulation of memory processes under stressful conditions. CRF is accepted as the main neuropeptide involved in both physical and emotional stress.. with a protective role during stress, possibly through the activation of the hypothalamo-pitiuitary (HPA) axis. The peptide CCK has been proposed to facilitate memory processing and CCK-like immunoreactivity in the hypothalamus was observed upon stress exposure, suggesting that CCK may participate in the central control of stress response and stress-induced memory dysfunction. On the other hand, 5-HT appears to play a role in behaviors that involve a high cognitive demand and stress exposure activates serotonergic systems in a variety of brain regions. The physiological role and therapeutic efficacy of various neuropeptides and the impact of stress exposure in the acquisition and consolidation of memory will be reviewed thoroughly.Publication Metadata only Anti-inflammatory effect of acute stress on experimental colitis is mediated by cholecystokinin-B receptors(PERGAMON-ELSEVIER SCIENCE LTD, 2004) YEGEN, BERRAK; Gulpinar, MA; Ozbeyli, D; Arbak, S; Yegen, BCWe aimed to investigate the effects of electric shock (ES) on the course of experimental colitis and the involvement of possible central and peripheral mechanisms. In Sprague-Dawley rats (n = 190) colitis was induced by intracolonic administration 2,4,6-trinitrobenzenesulfonic acid (TNBS). The effects of ES (0.3-0.5 mA) or the central administration of corticotropin-releasing factor (CRF; astressin, 10 mug/kg) or cholecystokinin (CCKB; 20 mug/kg) receptor antagonists and peripheral glucocorticoid receptor (RU-486; 10 mg/kg) or ganglion (hexamethonium; 15 mg/kg) blockers on TNBS-induced colitis were studied by the assessment of macroscopic score, histological analysis and tissue myeloperoxidase activity. ES reduced all colonic damage scores (p < 0.05-0.01), while central CRF (p < 0.05-0.001) and CCKB receptor (p < 0.05-0.01) blockers or peripheral hexamethonium (p < 0.05-0.01) and RU-486 (p < 0,05) reversed stress-induced improvement. ES demonstrated an anti-inflammatory effect on colitis, which appears to be mediated by central CRF and CCK receptors with, the participation of hypothalamo-pituitary-adrenal axis and the sympathetic nervous system. (C) 2004 Elsevier Inc. All rights reserved.Publication Open Access Rethinking large group lectures – how far in this format(2022-05-01) SEVİM, MUSTAFA; ERZİK, CAN; YEGEN, BERRAK; GÜLPINAR, MEHMET ALİ; AKTURAN S., SEVİM M., ERZİK C., YEGEN B., GÜLPINAR M. A.Objective: The aim of this study is to determine the perceptions, attitudes, and behaviour of medical students and lecturers regarding the lectures and their effects on students’ learning behaviour. Materials and Methods: This was a qualitative study including multi-methods. Researchers observed lecture ambiance and activities in two courses. Lectures were observed and slide-presentations were evaluated. Additionally, in-depth and focus group interviews were conducted. Results: Two researchers attended and observed 75 lectures. The average number of attendees was 51.21. Eighty percent of lecturers did not introduce any activities to attract attention and prepare students for the lecture. Only 12% of lectures were taught interactively. Of the evaluated 43 (69.80%) slide-presentations, sufficient association or integration was not made between clinical and basic sciences. Conclusion: This study revealed that the lectures created negative feelings and thoughts in students and lecturers, and led to undesirable attitudes and behaviour. It is essential to focus on giving interactive lectures which aim at developing reasoning, decision-making, and evaluation competencies. The most significant factors determining students’ attendance and appraisal of the lectures were related to the preparation of the lecturers, the intensity of the content, integration between basic science and clinical science, and the presentation skills.Publication Metadata only Relationship Between Motivational Orientations, Metacognitive Adaptations and Academic Successes of Doctorate Students(DEOMED PUBL, ISTANBUL, 2018) YEGEN, BERRAK; Gayef, Albena; Gulpinar, Mehmet Ali; Bakirci, Nadi; Yegen, Berrak C.Motivational orientations and metacognitive adaptations displayed in difficult situations are the two major factors that affect the academic success of students. The aim of this study is to examine relationship between motivational orientations, metacognitive adaptations and academic successes of doctorate students attending to Health Sciences Institute. In this study conducted on 139 students The Modified Archer's Health Professions Motivation Survey, The Positive Metacognitions and Positive Meta-Emotions Questionnaire and performance evaluation forms were used. In the study where metacognitive adaptation levels of doctorate students were found high, their self-confidence levels in extinguishing perseverative thoughts and emotions were found to be significantly different in comparison to their levels of goal orientations towards performance, academic alienation and their use of superficial learning strategies. Their self-confidence levels in interpreting own emotions as cues, restraining from immediate reaction and mind setting for problem solving, establishing flexible and feasible hierarchy of goals were also found to be significantly different in comparison to their levels of academic alienation, use of metacognitive learning strategies, and internal control (p<0.05). It was also observed that academic success of the students at course and thesis stages were found to be significantly different as compared to their level of metacognitive learning strategies, self-confidence levels for setting flexible/feasible hierarchy of goals (p<0.05).Publication Metadata only Enterogastric brake in rats with segmental bowel resection: Role of capsaicin-sensitive nerves(WILEY, 2002) YEGEN, BERRAK; Topcu, T; Gulpinar, MA; Isman, CA; Yegen, BC; Yegen, C1. Unabsorbed nutrients in the distal gut inhibit upper gastrointestinal motility. 2. The aim of the present study was to investigate changes in gastric motility following segmental resections and to evaluate the role of capsaicin-sensitive afferent neurons that may be responsible for these changes. 3. Wistar albino rats of both sexes (200-250 g) were used. Under aseptic conditions and anaesthesia (100 mg/kg ketamine), a baby-feeding tube was placed distal to the resection in either the ileum or caecum for intraluminal perfusion of saline or 20% lipid. In one group of rats, capsaicin was perfused (0.6%) for afferent denervation. One group of rats underwent jejunal and ileal resections with end-to-end anastomosis of the remaining segments and were cannulated distal to these anastomosis. Ten days after the surgery, the percentage gastric emptying of a solid meal was calculated. 4. Intra-ileal (18%) and intracaecal (34%) lipid perfusions delayed gastric emptying compared with groups perfused with saline (54% and 74%, respectively; P < 0.001 and P < 0.01). The delay in gastric emptying by ileal perfusion was significantly greater than that following caecal perfusion (P < 0.05). With both resections, gastric emptying was delayed compared with sham groups (P < 0.05-0.01). Local administration of capsaicin abolished the inhibitory effect of lipid on gastric emptying in healthy intact rats and in the jejunal-resection group, whereas a partial reversal was seen in the ileal-resection group. 5. In conclusion, the present data demonstrate that in both healthy intact rat groups and in short bowel groups, capsaicin-sensitive extrinsic neurons participate in 'brake' mechanisms of the distal gut.Publication Open Access Rethinking large group lectures – how far in this format(2022-05-01) ERZİK, CAN; GÜLPINAR, MEHMET ALİ; YEGEN, BERRAK; Akturan S., Erzik C., Yegen B., Gülpınar M. A.Objective: The aim of this study is to determine the perceptions, attitudes, and behaviour of medical students and lecturers regarding the lectures and their effects on students’ learning behaviour.Materials and Methods: This was a qualitative study including multi-methods. Researchers observed lecture ambiance and activities in two courses. Lectures were observed and slide-presentations were evaluated. Additionally, in-depth and focus group interviews were conducted.Results: Two researchers attended and observed 75 lectures. The average number of attendees was 51.21. Eighty percent of lecturers did not introduce any activities to attract attention and prepare students for the lecture. Only 12% of lectures were taught interactively. Of the evaluated 43 (69.80%) slide-presentations, sufficient association or integration was not made between clinical and basic sciences.Conclusion: This study revealed that the lectures created negative feelings and thoughts in students and lecturers, and led to undesirable attitudes and behaviour. It is essential to focus on giving interactive lectures which aim at developing reasoning, decisionmaking, and evaluation competencies. The most significant factors determining students’ attendance and appraisal of the lectures were related to the preparation of the lecturers, the intensity of the content, integration between basic science and clinical science, and the presentation skills.