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https://www.readbyqxmd.com/read/28229525/bilateral-thalamic-lesions-a-pictorial-review
#1
Anıl Özgür, Kaan Esen, Hakan Kaleağası, Arda Yılmaz, Engin Kara, Altan Yıldız
Bithalamic lesions are uncommon, however, both focal and systemic disorders may present bilateral abnormalities in the thalamus in different acute and chronic clinical situations. Neuroimaging, in particular magnetic resonance imaging, plays an essential role in diagnostic approach. Imaging features such as signal alterations, diffusion restriction or contrast enhancement are helpful in characterization of these abnormalities. The location of the lesions may provide key information because some pathologies typically involve a certain part of the thalamus...
February 23, 2017: Journal of Medical Imaging and Radiation Oncology
https://www.readbyqxmd.com/read/28215157/glycans-in-infectious-diseases-a-molecular-recognition-perspective
#2
Luca Unione, Ana Gimeno, Pablo Valverde, Ilaria Calloni, Helena Coelho, Stefania Mirabella, Ana Poveda, Ana Arda, Jesús Jiménez-Barbero
The importance of glycans in infection processes has been demonstrated during the past few years. Indeed, it is today a hot topic with diverse branches and perspectives. The field is therefore attracting increased attention and it is expected that will provide spectacular developments. In this non-exhaustive review, we have focused on the molecular recognition aspects that involve the participation of glycans in different infection processes of paramount importance, with special attention to the applications of NMR spectroscopy and other biophysical techniques...
February 16, 2017: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/28196706/the-role-of-cell-cycle-progression-for-the-apoptosis-of-cancer-cells-induced-by-palladium-ii-saccharinate-complexes-of-terpyridine
#3
Omer Kacar, Buse Cevatemre, Ibrahim Hatipoglu, Nazli Arda, Engin Ulukaya, Veysel T Yilmaz, Ceyda Acilan
OBJECTIVES: Palladium complexes are potent and less toxic molecules in comparison to other metal based agents. Here, we characterized two palladium(II) saccharinate complexes with terpyridine for their cell cycle specificity. MATERIALS AND METHODS: Cells were arrested at G1, G1/S boundary or mitosis using mimosine, double-Thymidine block, aphidicolin, nocodazole or colcemid, and evaluated based on morphology and flow cytometry. Synchronized cells were treated with the Pd(II) complexes, and viability was measured via MTT assay...
January 31, 2017: Bioorganic & Medicinal Chemistry
https://www.readbyqxmd.com/read/28194064/therapeutic-plasma-exchange-in-patients-with-neurologic-disorders-review-of-63-cases
#4
Anil Tombak, Mehmet Ali Uçar, Aydan Akdeniz, Arda Yilmaz, Hakan Kaleagası, Mehmet Ali Sungur, Eyup Naci Tiftik
Therapeutic plasma exchange (TPE) is a procedure that reduces circulating autoantibodies of the patients. TPE is commonly used in neurological disorders where autoimmunity plays a major role. We report our experience with regard to the indications, adverse events and outcomes of plasma exchange in neurological disorders. Sixty-three patients were included to this retrospective study. Median age was 48 years (range 1-85), there was a predominance of males. Neurological indications included Guillain-Barrè syndrome (n = 22), myasthenia gravis (n = 21), chronic inflammatory demyelinating polyneuropathy (n = 7), polymyositis (n = 3), multifocal motor neuropathy (n = 2), acute disseminated encephalomyelitis (n = 2), neuromyelitis optica (n = 2), multiple sclerosis (n = 2), limbic encephalitis (n = 1) and transverse myelitis (n = 1)...
March 2017: Indian Journal of Hematology & Blood Transfusion
https://www.readbyqxmd.com/read/28192664/nmr-and-molecular-recognition-of-n-glycans-remote-modifications-of-the-saccharide-chain-modulate-binding-features
#5
Ana Gimeno, Niels-Christian Reichardt, Francisco Javier Cañada, Lukas Perkams, Carlo Unverzagt, Jesus Jimenez-Barbero, Ana Arda
Glycans play a key role as recognition elements in the communication of cells and other organisms. Thus, the analysis of carbohydrate-protein interactions has gained significant importance. In particular, Nuclear Magnetic Resonance (NMR) techniques are considered powerful tools to detect relevant features in the interaction between sugars and their natural receptors. Here we present the results obtained in the study on the molecular recognition of different mannose-containing glycans by Pisum Sativum Agglutinin...
February 13, 2017: ACS Chemical Biology
https://www.readbyqxmd.com/read/28185803/a-new-apparatus-for-standardization-of-experimental-burn-models
#6
Mehmet Surhan Arda, Atacan Emre Koçman, Erdem Söztutar, Bedri Baksan, Cengiz Çetin
BACKGROUND: Burns have severe economic burden for families and countries therefore its treatment modalities have utmost importance. Several study both experimental or clinic has been reported accordingly. Although contact burns were frequently used models, most of them were manually designed. The elapsed time was recorded only. However, the real time contact surface temperature (T) and weight force (WF) were fundamental characteristics of a burn model. The aim of this study is to create a standard burn model with recording real time variables on behalf of custom designed apparatus...
February 6, 2017: Burns: Journal of the International Society for Burn Injuries
https://www.readbyqxmd.com/read/28168067/necrotizing-liver-granuloma-abscess-and-constrictive-aspergillosis-pericarditis-with-central-nervous-system-involvement-different-remarkable-phenotypes-in-different-chronic-granulomatous-disease-genotypes
#7
Sanem Eren Akarcan, Neslihan Karaca, Guzide Aksu, Halil Bozkaya, Mehmet Fatih Ayik, Yasemin Ozdemir Sahan, Mehmet Arda Kilinc, Zafer Dokumcu, Cenk Eraslan, Emre Divarci, Hudaver Alper, Necil Kutukculer
Chronic granulomatous disease (CGD) is a primary immune deficiency causing predisposition to infections with specific microorganisms, Aspergillus species and Staphylococcus aureus being the most common ones. A 16-year-old boy with a mutation in CYBB gene coding gp91(phox) protein (X-linked disease) developed a liver abscess due to Staphylococcus aureus. In addition to medical therapy, surgical treatment was necessary for the management of the disease. A 30-month-old girl with an autosomal recessive form of chronic granulomatous disease (CYBA gene mutation affecting p22(phox) protein) had invasive aspergillosis causing pericarditis, pulmonary abscess, and central nervous system involvement...
2017: Case Reports in Immunology
https://www.readbyqxmd.com/read/28157957/towards-chip-scale-optical-frequency-synthesis-based-on-optical-heterodyne-phase-locked-loop
#8
Shamsul Arafin, Arda Simsek, Seong-Kyun Kim, Sarvagya Dwivedi, Wei Liang, Danny Eliyahu, Jonathan Klamkin, Andrey Matsko, Leif Johansson, Lute Maleki, Mark Rodwell, Larry Coldren
An integrated heterodyne optical phase-locked loop was designed and demonstrated with an indium phosphide based photonic integrated circuit and commercial off-the-shelf electronic components. As an input reference, a stable microresonator-based optical frequency comb with a 50-dB span of 25 nm (~3 THz) around 1550 nm, having a spacing of ~26 GHz, was used. A widely-tunable on-chip sampled-grating distributed-Bragg-reflector laser is offset locked across multiple comb lines. An arbitrary frequency synthesis between the comb lines is demonstrated by tuning the RF offset source, and better than 100Hz tuning resolution with ± 5 Hz accuracy is obtained...
January 23, 2017: Optics Express
https://www.readbyqxmd.com/read/28132513/empowerment-and-social-support-as-predictors-of-self-care-behaviors-and-glycemic-control-in-individuals-with-type-2-diabetes
#9
Hamdiye Arda Sürücü, Dilek Büyükkaya Besen, Elif Yeter Erbil
This study investigated empowerment, social support, and diabetes-related characteristics as predictors of self-care behaviors and glycemic control in individuals with type 2 diabetes in Turkey. Descriptive cross-sectional and relational research designs were used in this study. The study was carried out with a cohort of 220 individuals with type 2 diabetes. Linear regression analysis revealed that patient empowerment was a statistically significant predictor of diet (β = .30; p < .001), exercise (β = ...
January 1, 2017: Clinical Nursing Research
https://www.readbyqxmd.com/read/28124793/fluoroacetamide-moieties-as-nmr-probes-for-molecular-recognition-of-glcnac-containing-sugars-modulation-of-the-ch-%C3%AF-stacking-interactions-by-different-fluorination-patterns
#10
Luca Unione, Maria Alcalá, Begoña Echeverria, Sonia Serna, Ana Ardá, Antonio Franconetti, Javier Cañada, Tammo Diercks, Niels Reichardt, Jesus Jimenez-Barbero
We herein propose the use of the fluoroacetamide and difluoroacetamide moieties as sensitive tags for detecting sugar-protein interactions by simple 1H and/or 19F NMR methods. As selected process, we have chosen the binding of N,N'-diacetyl chitobiose, a ubiquitous disaccharide fragment in glycoproteins, by wheat germ agglutinin (WGA), a model lectin. Using STD-NMR, we experimentally demonstrate that, under solution conditions, the molecule containing the CHF2-CO-NH- moiety is the stronger aromatic binder, followed by the analogue with the CH2F-CO-NH- group and the natural molecule (with the CH3-CO-NH- fragment)...
January 26, 2017: Chemistry: a European Journal
https://www.readbyqxmd.com/read/28108375/the-role-of-pattern-recognition-receptors-in-lung-sarcoidosis
#11
Esmaeil Mortaz, Ian M Adcock, Atefhe Abedini, Arda Kiani, Mehdi Kazempour-Dizaji, Masoud Movassaghi, Johan Garssen
Sarcoidosis is a granulomatous disorder of unknown etiology. Infection, genetic factors, autoimmunity and an aberrant innate immune system have been explored as potential causes of sarcoidosis. The etiology of sarcoidosis remains unknown, and it is thought that it might be caused by an infectious agent in a genetically predisposed, susceptible host. Inflammation results from recognition of evolutionarily conserved structures of pathogens (Pathogen-associated molecular patterns, PAMPs) and/or from reaction to tissue damage associated patterns (DAMPs) through recognition by a limited number of germ line-encoded pattern recognition receptors (PRRs)...
January 17, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/28100979/late-cardiac-rupture-after-amplatzer-septal-occluder-implantation
#12
Ahmet Arnaz, Yasemin Turkekul, Yusuf Yalcinbas, Arda Saygili, Tayyar Sarioglu
Transcatheter device implantation has become an attractive alternative to surgery in the closure of atrial septal defects in selected patients. However, it can lead to early and late sequelae, some of them life threatening. For example, 79 days before her admission to our emergency department with sudden-onset respiratory distress and respiratory arrest (leading to cardiac tamponade and rupture), a 22-year-old woman had undergone percutaneous closure of an atrial septal defect. We describe the damage and its treatment...
December 2016: Texas Heart Institute Journal
https://www.readbyqxmd.com/read/28050662/metalloproteinases-and-their-inhibitors-in-patients-with-inguinal-hernia
#13
Arda Isik, Cebrail Gursul, Kemal Peker, Merve Aydın, Deniz Fırat, İsmayil Yılmaz
AIM: The aim of this prospective study is to investigate if there is a relationship between inguinal hernia, matrix metalloproteinases (MMPs), and tissue inhibitors of metalloproteinases (TIMPs). MATERIALS AND METHODS: This case control study was performed on patients admitted to the general surgery department of Erzincan University Hospital. Four groups were created: control, indirect hernia, direct hernia, and bilateral hernia. All groups were comprised of 11 patients...
January 3, 2017: World Journal of Surgery
https://www.readbyqxmd.com/read/28045419/successful-percutaneous-removal-of-broken-umbilical-vein-catheter-in-a-very-low-birth-weight-preterm-infant
#14
Atalay Demirel, Gülşah Güven, Füsun Okan, Arda Saygılı
A 28-week-old preterm infant with a birth weight of 1250 g had a broken segment of umbilical vein catheter (UVC) lodged in the right atrium. It was observed that a 7-cm fragment of catheter had migrated to the right atrium through the inferior vena cava. The catheter was successfully retrieved by fluoroscopically guided percutaneous cardiac catheterization, using a cobra catheter and snare wire, without complication. Fracture and embolization of UVC is a rare but serious complication. Presently described was a case of fractured and embolized UVC in a very low-birth-weight preterm infant, and its successful retrieval via percutaneous endovascular approach...
December 2016: Türk Kardiyoloji Derneği Arşivi: Türk Kardiyoloji Derneğinin Yayın Organıdır
https://www.readbyqxmd.com/read/28043581/common-features-of-tuberculosis-and-sarcoidosis
#15
Esmaeil Mortaz, Mohammad Reza Masjedi, Atefeh Abedini, Soheila Matroodi, Arda Kiani, Dina Soroush, Ian M Adcock
Tuberculosis (TB) is a disease caused by Mycobacterium tuberculosis. Despite the availability of novel therapeutic approaches, TB is considered as one of the leading causes of death due to infectious diseases worldwide. Alveolar macrophages are the first line of defense against M. tuberculosis; they ingest and sequester the bacilli within granulomatous structures. Control and resolution of the infection requires activated T lymphocytes as well as Th1 cytokines. There are two forms of TB: active TB and latent TB...
December 2016: International Journal of Mycobacteriology
https://www.readbyqxmd.com/read/28043576/immunohistochemical-findings-of-the-granulomatous-reaction-associated-with-tuberculosis
#16
Shirin Karimi, Masoud Shamaei, Mihan Pourabdollah, Makan Sadr, Mehrdad Karbasi, Arda Kiani, Moslem Bahadori
OBJECTIVE/BACKGROUND: The histological diagnosis of Mycobacterium tuberculosis (MTB) has long been a diagnostic challenge in the anatomical pathology field despite availability of different laboratory methods. Immunohistochemistry (IHC) could not only confirm granulomatous tissue involvement but also demonstrate MTB antigen immunolocalization. This study tries to clarify the details of IHC staining for MTB with pAbBCG. METHODS: A total of 50 patients undergoing simultaneous biopsy and tissue culture with positive tissue culture for MTB during 2005-2009 were selected from the MRC Department at Masih Daneshvari Hospital, Tehran, Iran...
December 2016: International Journal of Mycobacteriology
https://www.readbyqxmd.com/read/28033561/post-pregnancy-aspirin-resistance-appears-not-to-be-related-with-recurrent-hypertensive-disorders-of-pregnancy
#17
Carolien N H Abheiden, Wessel W Fuijkschot, Arda Arduç, Jeske J K van Diemen, Ankie M Harmsze, Marjon A de Boer, Abel Thijs, Johanna I P de Vries
OBJECTIVE: The FRUIT-RCT concluded that low-molecular-weight heparin added to aspirin compared to treatment with aspirin alone is beneficial in the prevention of early-onset hypertensive disorders of pregnancy (HD) in women with inheritable thrombophilia and prior HD and/or a small-for-gestational age (SGA) infant leading to delivery before 34 weeks gestation. The aim of this study is to answer the question whether aspirin resistance is associated with recurrent HD. STUDY DESIGN: Women with and without recurrent HD matched for age, study arm, and chronic hypertension were invited for this follow-up study 6-16 years after they participated in the FRUIT-RCT...
December 21, 2016: European Journal of Obstetrics, Gynecology, and Reproductive Biology
https://www.readbyqxmd.com/read/28032913/correction-of-hysteretic-respiratory-motion-in-spect-myocardial-perfusion-imaging-simulation-and-patient-studies
#18
Paul K R Dasari, Arda Könik, P Hendrik Pretorius, Karen L Johnson, William P Segars, Mohammed S Shazeeb, Michael A King
PURPOSE: Amplitude based respiratory gating is known to capture the extent of respiratory motion (RM) accurately but results in residual motion in the presence of respiratory hysteresis. In our previous study, we proposed and developed a novel approach to account for respiratory hysteresis by applying the Bouc-Wen (BW) model of hysteresis to external surrogate signals of anterior / posterior motion of the abdomen and chest with respiration. In this work using simulated and clinical SPECT myocardial perfusion imaging (MPI) studies, we investigate the effects of respiratory hysteresis and evaluate the benefit of correcting it using the proposed BW model in comparison with the abdomen signal typically employed clinically...
December 29, 2016: Medical Physics
https://www.readbyqxmd.com/read/28032065/insertion-deletion-polymorphisms-and-serum-angiotensin-converting-enzyme-levels-in-iranian-patients-with-sarcoidosis
#19
Alireza Javadi, Masoud Shamaei, Masoud Zarei, Lida Rezaeian, Arda Kiani, Atefeh Abedini
BACKGROUND: Sarcoidosis is a multisystem inflammatory disease of unknown origin with characterization of small granulomas. Angiotensin-converting enzyme (ACE) is a pathophysiologic marker of sarcoidosis. We present the ACE insertion/deletion (I/D) polymorphism in correlation with serum ACE level in Iranian patients with sarcoidosis. METHODS: From Jan 2014 to Jan 2015, 102 Iranian patients who histopathologically diagnosed for sarcoidosis and 192 healthy age and sex-matched controls were recruited...
November 2016: Iranian Journal of Public Health
https://www.readbyqxmd.com/read/28000945/histopathological-and-biochemical-comparisons-of-the-protective-effects-of-amifostine-and-l-carnitine-against-radiation-induced-acute-testicular-toxicity-in-rats
#20
T Aktoz, M Caloglu, V Yurut-Caloglu, O Yalcin, N Aydogdu, D Nurlu, E Arda, O Inci
The aim of this study was to compare the radioprotective efficacies of amifostine (AMI) and l-carnitine (LC) against radiation-induced acute testicular damage. Thirty Wistar albino rats were randomly assigned to four groups: control (n = 6), AMI plus radiotherapy (RT) (n = 8), LC plus RT (n = 8) and RT group (n = 8). The rats were irradiated with a single dose of 20 Gy to the scrotal field. LC (300 mg/kg) and AMI (200 mg/kg) were given intraperitoneally 30 min before irradiation. The mean seminiferous tubule diameters (MSTDs) were calculated...
December 21, 2016: Andrologia
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