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https://www.readbyqxmd.com/read/28521325/effect-of-high-salt-diet-on-age-related-high-blood-pressure-and-hypothalamic-redox-signaling
#1
Bilgen Basgut, Melissa A Whidden, Nataliya Kirichenko, Mary Woods, Benedek Erdos, Philip J Scarpace, Nihal Tümer
AIM: The aim of this study was to investigate the effect of a high salt (HS) diet on age-related changes in blood pressure (BP) and the possible role played by regulatory central mechanisms. METHODS: Young (5 months) and old (27 months) male Fischer 344 × Brown Norway (F344/BN) rats were fed standard chow or 8% HS diet for 12 days. BP and heart rate (HR) were measured by telemetry. RESULTS: Mean arterial BP (MAP) was significantly elevated in old rats during the day and night when compared with young animals...
May 19, 2017: Pharmacology
https://www.readbyqxmd.com/read/28508370/a-proteomic-evaluation-of-sympathetic-activity-biomarkers-of-the-hypothalamus-pituitary-adrenal-axis-by-western-blotting-technique-following-experimental-traumatic-brain-injury
#2
Hale Zerrin Toklu, Yasemin Sakarya, Nihal Tümer
Endocrine disorders and autonomic dysfunction are common paradigms following traumatic brain injury (TBI). Alterations in the hypothalamus-pituitary-adrenal (HPA) axis following TBI may result in impaired vasopressor response, energy imbalance, fatigue, depression, or neurological disorders. Autonomic dysfunction is a common disorder following TBI. The sympathetic activity markers on HPA axis can be measured by Western blot protein analysis. Tyrosine hydroxylase, dopamine beta hydroxylase are the key enzymes for the synthesis of norepinephrine; and neuropeptide Y (NPY) is the peptide that is co-stored and co-released with norepinephrine...
2017: Methods in Molecular Biology
https://www.readbyqxmd.com/read/28419850/overpressure-blast-injury-induced-oxidative-stress-and-neuroinflammation-response-in-rat-frontal-cortex-and-cerebellum
#3
Hale Z Toklu, Zhihui Yang, Sehkar Oktay, Yasemin Sakarya, Nataliya Kirichenko, Michael K Matheny, Judy Muller-Delp, Kevin Strang, Philip J Scarpace, Kevin K W Wang, Nihal Tümer
BACKGROUND & AIM: Overpressure blast-wave induced brain injury (OBI) and its long-term neurological outcome pose significant concerns for military personnel. Our aim is to investigate the mechanism of injury due to OBI. METHODS: Rats were divided into 3 groups: (1) Control, (2) OBI (exposed 30psi peak pressure, 2-2.5ms), (3) Repeated OBI (r-OBI) (three exposures over one-week period). Lung and brain (cortex and cerebellum) tissues were collected at 24h post injury...
April 15, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28405210/y-chromosome-in-tumer-syndrome-a-case-report
#4
N Taliana, V Grech, E Said, J V DeGiovanni
No abstract text is available yet for this article.
October 2016: Images in Paediatric Cardiology
https://www.readbyqxmd.com/read/28398250/differences-in-ribosome-binding-and-sarcin-ricin-loop-depurination-by-shiga-and-ricin-holotoxins
#5
Xiao-Ping Li, Nilgun E Tumer
Both ricin and Shiga holotoxins display no ribosomal activity in their native forms and need to be activated to inhibit translation in a cell-free translation inhibition assay. This is because the ribosome binding site of the ricin A chain (RTA) is blocked by the B subunit in ricin holotoxin. However, it is not clear why Shiga toxin 1 (Stx1) or Shiga toxin 2 (Stx2) holotoxin is not active in a cell-free system. Here, we compare the ribosome binding and depurination activity of Stx1 and Stx2 holotoxins with the A1 subunits of Stx1 and Stx2 using either the ribosome or a 10-mer RNA mimic of the sarcin/ricin loop as substrates...
April 11, 2017: Toxins
https://www.readbyqxmd.com/read/28359996/treatment-of-recurrent-aphthous-stomatitis-with-er-cr-ysgg-laser-irradiation-a-randomized-controlled-split-mouth-clinical-study
#6
Hasan Guney Yilmaz, Mohammed Rateb Albaba, Ayse Caygur, Esra Cengiz, Fatma Boke-Karacaoglu, Hayriye Tumer
The present randomized controlled split mouth clinical study aimed to investigate the efficacy of Er,Cr:YSGG laser irradiation on pain reduction and healing rate of recurrent aphthous stomatitis. 40 patients with RAS were recruited for this study and RAS ulcerations of each patient were randomly assigned to the control or test group. In the test group, Er,Cr:YSGG laser with non-contact mode was used to irradiate RAS lesions. In the placebo group, RAS lesions were irradiated with the same device without laser emission...
March 22, 2017: Journal of Photochemistry and Photobiology. B, Biology
https://www.readbyqxmd.com/read/28263872/evidence-of-oxidative-stress-and-mitochondrial-dysfunction-in-spinocerebellar-ataxia-type-2-sca2-patient-fibroblasts-effect-of-coenzyme-q10-supplementation-on-these-parameters
#7
Nanna Cornelius, Jonathan H Wardman, Iain P Hargreaves, Viruna Neergheen, Anne Sigaard Bie, Zeynep Tümer, Jørgen E Nielsen, Troels T Nielsen
Spinocerebellar ataxia type 2 (SCA2) is a rare neurodegenerative disorder caused by a CAG repeat expansion in the ataxin-2 gene. We show increased oxidative stress, abnormalities in the antioxidant system, changes in complexes involved in oxidative phosphorylation and changes in mitochondrial morphology in SCA2 patient fibroblasts compared to controls, and we show that treatment with CoQ10 can partially reverse these changes. Together, our results suggest that oxidative stress and mitochondrial dysfunction may be contributory factors to the pathophysiology of SCA2 and that therapeutic strategies involving manipulation of the antioxidant system could prove to be of clinical benefit...
March 3, 2017: Mitochondrion
https://www.readbyqxmd.com/read/28262274/sinonasal-adamantinoma-like-ewing-sarcoma-a-case-report
#8
Borislav A Alexiev, Yanki Tumer, Justin A Bishop
We describe the case of a sinonasal adamantinoma-like Ewing sarcoma in a 41-year-old male. Histologically, the tumor exhibited distinctive areas of nested growth pattern with prominent stromal fibrosis and metaplastic bone formation. The tumor cells were small and uniform with minimal amount of pale eosinophilic to clear cytoplasm and round or oval nuclei with finely dispersed chromatin and small nucleoli. Approximately 20% of the tumor parenchyma comprised of small clusters of basaloid cells within an osteofibrous background resembling adamantinoma...
December 2, 2016: Pathology, Research and Practice
https://www.readbyqxmd.com/read/28230053/ricin-uses-arginine-235-as-an-anchor-residue-to-bind-to-p-proteins-of-the-ribosomal-stalk
#9
Yijun Zhou, Xiao-Ping Li, Brian Y Chen, Nilgun E Tumer
Ricin toxin A chain (RTA) binds to stalk P-proteins to reach the α-sarcin/ricin loop (SRL) where it cleaves a conserved adenine. Arginine residues at the RTA/RTB interface are involved in this interaction. To investigate the individual contribution of each arginine, we generated single, double and triple arginine mutations in RTA. The R235A mutation reduced toxicity and depurination activity more than any other single arginine mutation in yeast. Further reduction in toxicity, depurination activity and ribosome binding was observed when R235A was combined with a mutation in a nearby arginine...
February 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28173100/selective-right-atrial-cardioneuroablation-in-functional-atrioventricular-block
#10
Tolga Aksu, Erkan Baysal, Tumer Erdem Guler, Kıvanc Yalın
No abstract text is available yet for this article.
February 1, 2017: Europace: European Pacing, Arrhythmias, and Cardiac Electrophysiology
https://www.readbyqxmd.com/read/28138399/rapid-identification-of-helicobacter-pylori-and-assessment-of-clarithromycin-susceptibility-from-clinical-specimens-using-fish
#11
Ebru Demiray-Gürbüz, Özlem Yılmaz, Asalia Z Olivares, Can Gönen, Sülen Sarıoğlu, Müjde Soytürk, Sait Tümer, Oğuz Altungöz, İlkay Şimşek, Guillermo I Perez Perez
Helicobacter pylori remains one of the most common bacterial infections worldwide. Clarithromycin resistance is the most important cause of H. pylori eradication failures. Effective antibiotic therapies in H. pylori infection must be rapidly adapted to local resistance patterns. We investigated the prevalence of clarithromycin resistance due to mutations in positions 2142 and 2143 of 23SrRNA gene of H. pylori by fluorescence in situ hybridisation (FISH), and compared with culture and antimicrobial susceptibility testing in 234 adult patients with dyspepsia who were enrolled...
January 2017: Journal of Pathology. Clinical Research
https://www.readbyqxmd.com/read/28106021/endocardial-septal-ablation-for-hypertrophic-obstructive-cardiomyopathy
#12
Tolga Aksu, Tümer Erdem Güler, Kıvanç Yalın, Şükriye Ebru Gölcük, Kazım Serhan Özcan
Septal reduction therapy (SRT) is the accepted therapeutic option for symptomatic hypertrophic obstructive cardiomyopathy (HOCM). At this time, surgical septal myectomy is the gold standard method, but alcohol septal ablation is an acceptable alternative treatment for patients with suitable anatomy. Endocardial septal ablation (ESA) therapy is a little-known method of SRT. Presently described is case of successful ESA procedure performed for HOCM.
January 2017: Türk Kardiyoloji Derneği Arşivi: Türk Kardiyoloji Derneğinin Yayın Organıdır
https://www.readbyqxmd.com/read/28106018/cardioneuroablation-in-the-treatment-of-neurally-mediated-reflex-syncope-a-review-of-the-current-literature
#13
Tolga Aksu, Tümer Erdem Güler, Serdar Bozyel, Kazım Serhan Özcan, Kıvanç Yalın, Ferit Onur Mutluer
OBJECTIVE: An imbalance between parasympathetic and sympathetic tone is a main cause of neurally mediated reflex syncope (NMRS). These patients may be very symptomatic and the condition may require cardiac pacemaker implantation. Cardioneuroablation (CNA) is a relatively novel technique based on radiofrequency ablation of vagal ganglia that can be used in treatment of NMRS. The aim of this analysis was to compare potential role of CNA in patients with NMRS. METHODS: In accordance with the Preferred Reporting Items for Systematic Reviews and Meta-Analyses Statement, literature search was conducted using the keywords "cardioneuroablation," "vagal denervation," "reflex syncope," "vagal ablation," and "ganglionic plexi ablation...
December 2017: Türk Kardiyoloji Derneği Arşivi: Türk Kardiyoloji Derneğinin Yayın Organıdır
https://www.readbyqxmd.com/read/28101772/zinc-deficiency-in-the-pediatric-age-group-is-common-but-underevaluated
#14
Dogus Vuralli, Leyla Tumer, Alev Hasanoglu
BACKGROUND: Subclinical micronutrient deficiencies have been gradually becoming more important as a public health problem and drawing attention of the health authorities. Today it has been known that detecting and treating people having deficiency symptoms alone is no longer sufficient. It is important to detect and prevent any deficiency before it displays clinical manifestations. Zinc deficiency is one of the most widespread micronutrient deficiencies. In this study, we aimed to evaluate the zinc status and the associated factors in healthy school-age children...
January 19, 2017: World Journal of Pediatrics: WJP
https://www.readbyqxmd.com/read/28051332/activation-of-the-central-melanocortin-system-chronically-reduces-body-mass-without-the-necessity-of-long-term-caloric-restriction
#15
I Côté, Y Sakarya, N Kirichenko, D Morgan, C S Carter, N Tümer, P J Scarpace
Melanotan II (MTII) is a potent appetite suppressor that rapidly reduces body mass. Given the rapid loss of anorexic response upon chronic MTII treatment, most investigations have focused on the initial physiological adaptations. However, other evidence supports MTII as a long-term modulator of energy balance that remains to be established. Therefore, we examined the chronic effects of MTII on energy homeostasis. MTII (high or low dose) or artificial cerebrospinal fluid (aCSF) was infused into the lateral ventricle of the brain of 6-month-old F344BN rats (6-7/group) over 40 days...
February 2017: Canadian Journal of Physiology and Pharmacology
https://www.readbyqxmd.com/read/28007280/a-papillary-fibroelastoma%C3%A2-involving-aortic%C3%A2-and-pulmonary-valves-findings-on-multimodality-imaging
#16
Amir Ali Rahsepar, Ahmadreza Ghasemiesfe, Rahul N Sawlani, Marcos P Ferreira Botelho, Ajit S Paintal, Yanki Tumer, S Chris Malaisrie, Benjamin H Freed, Jeremy D Collins, James C Carr
Cardiac papillary fibroelastoma, a rare entity, is the second most common benign primary cardiac tumor. Commonly involving the cardiac valves, this entity is increasingly diagnosed using different imaging modalities. We present a rare case of simultaneous involvement of both the aortic and pulmonary valves in an asymptomatic patient who underwent different imaging modalities, including transthoracic and transesophageal echocardiography, nongated and gated computed tomography, and magnetic resonance imaging...
January 2017: Annals of Thoracic Surgery
https://www.readbyqxmd.com/read/28006433/intracerebroventricular-tempol-administration-in-older-rats-reduces-oxidative-stress-in-the-hypothalamus-but-does-not-change-stat3-signalling-or-sirt1-ampk-pathway
#17
Hale Z Toklu, Philip J Scarpace, Yasemin Sakarya, Nataliya Kirichenko, Michael Matheny, Erin B Bruce, Christy S Carter, Drake Morgan, Nihal Tümer
Hypothalamic inflammation and increased oxidative stress are believed to be mechanisms that contribute to obesity. 4-Hydroxy-2,2,6,6-tetramethylpiperidine-N-oxyl (tempol), a free radical scavenger, has been shown to reduce inflammation and oxidative stress. We hypothesized that brain infusion of tempol would reduce oxidative stress, and thus would reduce food intake and body weight and improve body composition in rats with age-related obesity and known elevated oxidative stress. Furthermore, we predicted an associated increase in markers of leptin signalling, including the silent mating type information regulator 2 homolog 1 (SIRT1)/5'AMP-activated protein kinase (AMPK) pathway and the signal transducer and activator of transcription 3 (STAT3) pathway...
January 2017: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/27989786/malignant-tenosynovial-giant-cell-tumor-with-cdkn2a-b-genomic-alteration-a-histological-immunohistochemical-and-molecular-study
#18
Borislav A Alexiev, Yanki Tumer, Guang-Yu Yang
Diffuse-type tenosynovial giant cell tumor (D-T TSGCT) is regarded as a benign but locally aggressive neoplasm with significant recurrent potential. We report a case of malignant (D-T TSGCT with pleural metastases arising in the left knee in a 57-year-old male. The tumor demonstrated atypical features, including a solid infiltrative pattern with spindling of the tumor cells, nuclear pleomorphism with prominent nucleoli, and markedly increased mitotic activity (>20 mitoses/10 HPF). The immunoprofile demonstrated clusterin+, D2-40+, CD68+, p63+, MDM2+, p16- tumor...
December 15, 2016: Human Pathology
https://www.readbyqxmd.com/read/27988460/biological-evaluation-and-molecular-docking-studies-of-nitro-benzamide-derivatives-with-respect-to-in-vitro-anti-inflammatory-activity
#19
Tugba B Tumer, Ferah Comert Onder, Hande Ipek, Tugba Gungor, Seda Savranoglu, Tugba Taskin Tok, Ayhan Celik, Mehmet Ay
A series of nitro substituted benzamide derivatives were synthesized and evaluated for their potential anti-inflammatory activities in vitro. Firstly, all compounds (1-6) were screened for their inhibitory capacity on LPS induced nitric oxide (NO) production in RAW264.7 macrophages. Compounds 5 and 6 demonstrated significantly high inhibition capacities in a dose-dependent manner with IC50 values of 3.7 and 5.3μM, respectively. These two compounds were also accompanied by no cytotoxicity at the studied concentrations (max 50μM) in macrophages...
February 2017: International Immunopharmacology
https://www.readbyqxmd.com/read/27970773/direct-cost-of-hiv-aids-in-turkey
#20
M Tatar, G Kockaya, B Ozelgun, T Zengin Elbir, A Senturk, E Tuna, S Unal, A Tumer, C Inkaya
No abstract text is available yet for this article.
November 2016: Value in Health: the Journal of the International Society for Pharmacoeconomics and Outcomes Research
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