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https://www.readbyqxmd.com/read/29138218/lecture-attendance-improves-success-in-medical-physiology
#1
Enver Ahmet Demir, Okan Tutuk, Hatice Dogan, Duygu Egeli, Cemil Tumer
The educators have underlined the importance of lecture attendance for decades. Nowadays, students have ample online educational sources, which began a debate on the necessity of in-class lectures. In the present study, we investigated the influence of lecture attendance on the exam success. To this aim, we adopted a novel approach and matched second-year medicine students' answers in three interim exams with the lectures related to those questions. Thereby, we were able to evaluate if attending lectures increases the chance of giving a correct answer to the exam question generated from the attended lecture...
December 1, 2017: Advances in Physiology Education
https://www.readbyqxmd.com/read/29131966/activation-of-the-central-melanocortin-system-in-rats-persistently-reduces-body-and-fat-mass-independently-of-caloric-reduction
#2
Isabelle Côté, Sara M Green, Drake Morgan, Christy Carter, Nihal Tümer, Philip James Scarpace
Recent evidence indicate that Melanotan II (MTII) reduces body mass independently of caloric reduction. Because MTII induces a transient hypophagia, caloric reduction is still considered a primary mechanism for MTII-mediated body mass loss. To examine the contribution of caloric reduction to long-term body mass loss in response to Melanotan II (MTII), we centrally infused MTII or vehicle in ad libitum fed (MTII and Control) animals in comparison to a group of animals that were pair-fed (PF) to the MTII group...
November 13, 2017: Canadian Journal of Physiology and Pharmacology
https://www.readbyqxmd.com/read/29127065/fatigue-performance-of-additively-manufactured-meta-biomaterials-the-effects-of-topology-and-material-type
#3
S M Ahmadi, R Hedayati, Y Li, K Lietaert, N Tümer, A Fatemi, C D Rans, B Pouran, H Weinans, A A Zadpoor
Additive manufacturing (AM) techniques enable fabrication of bone-mimicking meta-biomaterials with unprecedented combinations of topological, mechanical, and mass transport properties. The mechanical performance of AM meta-biomaterials is a direct function of their topological design. It is, however, not clear to what extent the material type is important in determining the fatigue behavior of such biomaterials. We therefore aimed to determine the isolated and modulated effects of topological design and material type on the fatigue response of metallic meta-biomaterials fabricated with selective laser melting...
November 7, 2017: Acta Biomaterialia
https://www.readbyqxmd.com/read/29125933/can-use-of-rigid-fixation-after-consolidation-benefit-cleft-patients-following-distraction-osteogenesis
#4
Reza Tabrizi, Kemal Tumer, Shervin Shafiei, Ashkan Rashad
PURPOSE: The stability of distraction osteogenesis (DO) is an important issue in maxillary advancement for patients with cleft lip and palate (CLP). The aim of this study was to evaluate postoperative stability in patients with and without internal fixation after removing maxillary distraction devices. MATERIALS AND METHODS: This randomized clinical trial assessed patients with CLP who needed maxillary advancement greater than 6 mm; they were randomly assigned to 1 of 2 groups...
October 16, 2017: Journal of Oral and Maxillofacial Surgery
https://www.readbyqxmd.com/read/29089970/pectoral-muscular-twitching-a-rare-manifestation-of-spontaneous-twiddler-syndrome
#5
Serdar Bozyel, Tolga Aksu, Tumer Erdem Guler, Kazım Serhan Ozcan, Mujdat Aktas
No abstract text is available yet for this article.
August 2017: Journal of Geriatric Cardiology: JGC
https://www.readbyqxmd.com/read/29089334/ibat-sympathetic-innervation-is-not-required-for-body-weight-loss-induced-by-central-leptin-delivery
#6
Isabelle Cote, Yasemin Sakarya, Sara M Green, Drake Morgan, Christy S Carter, Nihal Tumer, Philip J Scarpace
We evaluated the contribution of brown adipose tissue (BAT) sympathetic innervation on central leptin mediated weight loss. In a short and long-term study, F344BN rats submitted to either a denervation of interscapular BAT (Denervated) or a sham operation (Sham). Animals from each group received Ob (Leptin) or GFP (Control) gene through a single injection of recombinant adeno-associated virus delivered centrally. Changes in body weight were recorded for 14 or 35 days, after which adipose tissues and skeletal muscles were weighed...
October 31, 2017: American Journal of Physiology. Endocrinology and Metabolism
https://www.readbyqxmd.com/read/29064547/comparison-of-type-i-collagens-and-mmp-2-proteins-in-young-and-old-mice-temporomandibular-joint
#7
M Demir, M Kemal Tumer, M Çiçek, M Uysal, A Yoldas, A Doganer
BACKGROUND: The effects of aging on the histopathological changes of Temporomandibular joint (TMJ) and the existence and age related alterations of immunochemical expressions of type I collagen and matrix metalloproteinase-2 (MMP-2) proteins was aimed to be displayed. MATERIALS AND METHODS: In this study, 14 Balb/C type white mice (50-80g) were included. Groups were organized as Group I two month old young mice group (n=7) and Group II 18 month old mice group (n=7)...
October 24, 2017: Folia Morphologica (Warsz)
https://www.readbyqxmd.com/read/29044801/differential-physiological-responses-to-central-leptin-overexpression-in-male-and-female-rats
#8
Isabelle Côté, Sara M Green, Hale Z Toklu, Drake Morgan, Christy S Carter, Nihal Tümer, Philip J Scarpace
Brains of females are more sensitive to the acute catabolic actions of leptin. However, sex differences in the long-term physiological responses to central leptin receptor modulation are unknown. To this end, we centrally delivered a viral vector to overexpress leptin (Leptin), a neutral leptin receptor antagonist (Leptin-Antagonist), or a green fluorescence protein (Control). We examined chronic changes in body weight and composition in male and female rats. Females displayed greater and sustained responses to Leptin whereas males rapidly lost physiological effects and developed leptin resistance confirmed by lower acute leptin-mediated phosphorylation of STAT3 (P-STAT3)...
October 17, 2017: Journal of Neuroendocrinology
https://www.readbyqxmd.com/read/29037082/the-d313y-variant-in-the-gla-gene-no-evidence-of-a-pathogenic-role-in-fabry-disease
#9
Lis Hasholt, Martin Ballegaard, Henning Bundgaard, Michael Christiansen, Ian Law, Allan M Lund, Anne Norremolle, Ase Krogh Rasmussen, Kirstine Ravn, Zeynep Tumer, Flemming Wibrand, Ulla Feldt-Rasmussen
Fabry disease is an X- linked inherited lysosomal storage disease caused by mutations in the GLA gene encoding the lysosomal enzyme alpha-galactosidase A (α-Gal A). The possible pathological significance of the D313Y variant in the GLA gene has not been verified and it may be a Fabry variant. Our aim was to elucidate whether the presence of the D313Y variant influenced the α-Gal A activity or resulted in Fabry symptoms or Fabry organ involvement. In two Danish families the presence of the D313Y variant did not result in reduced α-Gal A activity or clinical Fabry manifestations in males, and the presence in Fabry females did not significantly enhance the phenotype of a known causative mutation in the GLA gene (G271S)...
October 16, 2017: Scandinavian Journal of Clinical and Laboratory Investigation
https://www.readbyqxmd.com/read/29023665/clinician-s-guide-to-genes-associated-with-rett-like-phenotypes-investigation-of-a-danish-cohort-and-review-of-the-literature
#10
REVIEW
Bitten Schönewolf-Greulich, Anne-Marie Bisgaard, Rikke S Møller, Morten Dunø, Karen Brøndum-Nielsen, Simran Kaur, Nicole J Van Bergen, Sebastian Lunke, Stefanie Eggers, Cathrine Jespersgaard, John Christodoulou, Zeynep Tümer
The differential diagnostics in Rett syndrome has evolved with the development of next generation sequencing based techniques and many patients have been diagnosed with other syndromes or variants in newly described genes where the associated phenotype(s) is yet to be fully explored. The term Rett-like refers to phenotypes with distinct overlapping features of Rett syndrome where the clinical criteria are not completely fulfilled. In this paper we have combined a review of Rett-like disorders with data from a Danish cohort of 35 patients with Rett-like phenotypes emphasizing the diagnostic overlap with Pitt-Hopkins syndrome, Cornelia de Lange syndrome with SMC1A variants, and epileptic encephalopathies for example due to STXBP1 variants...
October 10, 2017: Clinical Genetics
https://www.readbyqxmd.com/read/28905103/influence-of-the-mif-polymorphism-173g%C3%A2-%C3%A2-c-on-turkish-postmenopausal-women-with-osteoporosis
#11
A Z Ozsoy, N Karakus, S Tural, S Yigit, N Kara, G Alayli, M K Tumer, O Kuru
BACKGROUND: MIF, a proinflammatory cytokine, contributes to the pathogenesis of acute, chronic, and autoimmune inflammatory disorders and balances the suppressive effect of glucocorticoids on the immune system. There is an interaction between bone metabolism and the immune system via the production of cytokines. We aimed to analyze the relationship between the MIF gene -173G > C promoter polymorphism and osteoporosis. METHODS: In this case-control study performed in a university hospital, 286 samples (136 women with osteoporosis and 150 healthy age-matched controls) participated...
September 13, 2017: Zeitschrift Für Rheumatologie
https://www.readbyqxmd.com/read/28855037/-mechanism-of-chlorogenic-acid-in-apoptotic-regulation-through-notch1-%C3%A2-pathway-in-non-small-cell-lung-carcinoma-in-animal-level
#12
Wei Li, Xu Liu, Guoqian Zhang, Linlin Zhang
BACKGROUND: It has been proven that chlorogenic acids can produce anticancer effects by regulating cell cycle, inducing apoptosis, inhibiting cell growth, Notch signaling pathways are closely related to many human tumors. The aim of this study is to study the mechanism of chlorogenic acid on apoptosis of non-small lung cancer through Notch1 pathway in animal level, and hope to provide theory basis on clinical treatment and research aimed at targeting Notch1 signaling in non-small cell carcinoma (NSCLC)...
August 20, 2017: Zhongguo Fei Ai za Zhi, Chinese Journal of Lung Cancer
https://www.readbyqxmd.com/read/28832011/a-myopathy-lactic-acidosis-sideroblastic-anemia-mlasa-case-due-to-a-novel-pus1-mutation
#13
Çiğdem Seher Kasapkara, Leyla Tümer, Nadia Zanetti, Fatih Ezgü, Eleonora Lamantea, Massimo Zeviani
No abstract text is available yet for this article.
August 23, 2017: Turkish Journal of Haematology: Official Journal of Turkish Society of Haematology
https://www.readbyqxmd.com/read/28761022/vagal-denervation-in-atrial-fibrillation-ablation-a-comprehensive-review
#14
Tolga Aksu, Tümer Erdem Güler, Ferit Onur Mutluer, Mehmet Ali Oto
Although pulmonary vein isolation is accepted as an established interventional treatment in paroxysmal atrial fibrillation (AF), alternative modalities are being investigated because of the high recurrence rates of nonparoxysmal forms. One of the alternative ablation approaches is ablation or modification of vagal ganglionated plexi (VGP). The technique has not only been used in vagally mediated AF but also investigated in paroxysmal and nonparoxysmal AF. Clinical studies demonstrate significant discrepancy related with detection of VGP sites or ablation targets and definition of procedurel end-points, so far...
July 25, 2017: Anatolian Journal of Cardiology
https://www.readbyqxmd.com/read/28717148/human-ribosomal-p1-p2-heterodimer-represents-an-optimal-docking-site-for-ricin-a-chain-with-a-prominent-role-for-p1-c-terminus
#15
Przemysław Grela, Xiao-Ping Li, Patrycja Horbowicz, Monika Dźwierzyńska, Marek Tchórzewski, Nilgun E Tumer
The eukaryotic P-stalk contains two P1-P2 protein dimers with a conserved C- terminal domain (CTD) critical for the interaction with external factors. To understand the role of the individual CTD of human P1/P2 proteins, we examined the interaction of reconstituted human P-protein complexes and C-terminally truncated forms with ricin A chain (RTA), which binds to the stalk to depurinate the sarcin/ricin loop (SRL). The interaction between P-protein complexes and RTA was examined by surface plasmon resonance, isothermal titration calorimetry, microscale thermophoresis and bio-layer interferometry...
July 17, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28705275/telangiectasia-macularis-eruptiva-perstans-report-of-three-cases
#16
Gizem Tumer, Tiffany Jow, Sean McElligott, Robert A Schwartz, W Clark Lambert
Telangiectasia macularis eruptiva perstans (TMEP) is a rare, heterogeneous disease of mast cell proliferation. The variable clinical presentation of TMEP, coupled with its rarity, makes the recognition and diagnosis of this disease difficult and challenging for clinicians. The histopathologic findings with hematoxylin and eosin staining that distinguish TMEP from a normal skin biopsy can be so subtle that confirmation of the diagnosis with additional special stains (c-Kit, Giemsa, toluidine blue) is strongly recommended...
2017: Skinmed
https://www.readbyqxmd.com/read/28694398/renal-sympathetic-denervation-assisted-treatment-of-electrical-storm-due-to-polymorphic-ventricular-tachycardia-in-a-patient-with-cathecolaminergic-polymorphic-ventricular-tachycardia
#17
Tolga Aksu, Tümer Erdem Güler, Kazım Serhan Özcan, Serdar Bozyel, Kıvanç Yalın
Electrical storm (ES) is not a rare clinical entity. Sympathetic hyperactivity may play critical role in development and continuation of ES. Some recent reports have demonstrated that catheter-based renal sympathetic denervation (RSD) may reduce sympathetic activation and have a potential role in reducing arrhythmic burden. A 46-year-old man was admitted to clinic with frequent implantable cardioverter defibrillator shocks and ES related to catecholaminergic polymorphic ventricular tachycardia (VT). Tachycardia was unresponsive to administration of beta-blockers, verapamil, and flecainide...
July 2017: Türk Kardiyoloji Derneği Arşivi: Türk Kardiyoloji Derneğinin Yayın Organıdır
https://www.readbyqxmd.com/read/28692552/patient-with-niemann-pick-type-c-presenting-with-a-jaw-mass-characterized-with-lymph-node-involvement-by-niemann-pick-cells
#18
Asli İnci, İlyas Okur, Güldal Esendağli, Arzu Okur, Asburçe Olgaç, Fatih S Ezgü, Leyla Tümer
Niemann-Pick type C disease (NPC) is an autosomal recessive disorder resulting in accumulation of unesterified lysosomal cholesterol. An 8-year-old girl with NPC disease had a painless, rigid, and fixed mass measuring 3 cm in diameter located on the left angular region of mandibula. The mass biopsy showed lipid-laden phagocytic cells infiltrating the lymph node consistent with Niemann-Pick cells. In NPC, accumulation of cholesterol in tissues could be seen not only in reticuloendothelial and nervous systems, but also in all systems...
July 7, 2017: Journal of Pediatric Hematology/oncology
https://www.readbyqxmd.com/read/28657131/a-37-years-old-menkes-disease-patient-residual-atp7a-activity-and-early-copper-administration-as-key-factors-in-beneficial-treatment
#19
Zeynep Tümer, Michael Petris, Sha Zhu, Julian Mercer, Jens Bukrinski, Stefan Bilz, Kurt Baerlocher, Nina Horn, Lisbeth B Møller
Menkes disease is a lethal disorder characterized by severe neurological symptoms and connective tissue abnormalities; and results from malfunctioning of cuproenzymes, which cannot receive copper due to a defective intracellular copper transporting protein, ATP7A. Early parenteral copper-histidine supplementation may modify disease progression substantially but beneficial effects of long-term treatment have been recorded in only a few patients. Here we report on the eldest surviving Menkes disease patient (37 years) receiving early-onset and long-term copper treatment...
June 28, 2017: Clinical Genetics
https://www.readbyqxmd.com/read/28648817/modulatory-effect-of-silymarin-on-nuclear-factor-erythroid-2-related-factor-2-regulated-redox-status-nuclear-factor-%C3%AE%C2%BAb-mediated-inflammation-and-apoptosis-in-experimental-gastric-ulcer
#20
Walaa Arafa Keshk, Samer Mahmoud Zahran, Mohamed Alaa Katary, Darin Abd-Elaziz Ali
Non-steroidal anti-inflammatory drugs (NSAIDs) consumption has been commonly associated with gastric mucosal lesions including gastric ulcer. Silymarin (SM) is a flavonoid mixture with anti-oxidant and anti-inflammatory activities which explain its protective role against hepatic and renal injuries. However, its impact on gastric ulcer has not yet been elucidated. Thus we went further to investigate the potential protective effects of SM against indomethacin-induced gastric injury in rats. Pretreatment with SM (50 mg/kg orally) attenuated the severity of gastric mucosal damage as evidenced by decreasing ulcer index (UI) and ulcer score, improvement of disturbed histopathologicl features to be insignificant with those induced by the reference anti-ulcer drug...
August 1, 2017: Chemico-biological Interactions
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