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https://www.readbyqxmd.com/read/28108837/can-mechanical-imaging-increase-the-specificity-of-mammography-screening
#1
Magnus Dustler, Daniel Förnvik, Pontus Timberg, Ingvar Andersson, Hannie Petersson, Håkan Brorson, Anders Tingberg, Sophia Zackrisson
OBJECTIVES: This study aimed to investigate the effects of adding adjunct mechanical imaging to mammography breast screening. We hypothesized that mechanical imaging could detect increased local pressure caused by both malignant and benign breast lesions and that a pressure threshold for malignancy could be established. The impact of this on breast screening was investigated with regard to reductions in recall and biopsy rates. METHODS: 155 women recalled from breast screening were included in the study, which was approved by the regional ethical review board (dnr 2013/620)...
January 20, 2017: European Radiology
https://www.readbyqxmd.com/read/28108033/the-utility-of-repeat-sestamibi-scans-in-patients-with-primary-hyperparathyroidism-after-an-initial-negative-scan
#2
Vikram D Krishnamurthy, Sara Sound, Alexis K Okoh, Pinar Yazici, Hakan Yigitbas, Donald Neumann, Krupa Doshi, Eren Berber
BACKGROUND: We analyzed the utility of repeated sestambi scans in patients with primary hyperparathyroidism and its effects on operative referral. METHODS: We carried out a retrospective review of patients with primary hyperparathyroidism who underwent repeated sestambi scans exclusively within our health system between 1996-2015. Patient demographic, presentation, laboratory, imaging, operative, and pathologic data were reviewed. Univariate analysis with JMP Pro v12 was used to identify factors associated with conversion from an initial negative to a subsequent positive scan...
January 17, 2017: Surgery
https://www.readbyqxmd.com/read/28107660/guided-growth-of-auditory-neurons-bioactive-particles-towards-gapless-neural-electrode-interface
#3
Hao Li, Fredrik Edin, Hisamitsu Hayashi, Olafur Gudjonsson, Niklas Danckwardt-Lillieström, Håkan Engqvist, Helge Rask-Andersen, Wei Xia
Cochlear implant (CI) is a successful device to restore hearing. Despite continuous development, frequency discrimination is poor in CI users due to an anatomical gap between the auditory neurons and CI electrode causing current spread and unspecific neural stimulation. One strategy to close this anatomical gap is guiding the growth of neuron dendrites closer to CI electrodes through targeted slow release of neurotrophins. Biodegradable calcium phosphate hollow nanospheres (CPHSs) were produced and their capacity for uptake and release of neurotrophins investigated using (125)I-conjugated glia cell line-derived neurotrophic factor (GDNF)...
December 23, 2016: Biomaterials
https://www.readbyqxmd.com/read/28101657/levodopa-carbidopa-microtablets-in-parkinson-s-disease-a-study-of-pharmacokinetics-and-blinded-motor-assessment
#4
Marina Senek, Sten-Magnus Aquilonius, Håkan Askmark, Filip Bergquist, Radu Constantinescu, Anders Ericsson, Sara Lycke, Alexander Medvedev, Mevludin Memedi, Fredrik Ohlsson, Jack Spira, Jerker Westin, Dag Nyholm
BACKGROUND: Motor function assessments with rating scales in relation to the pharmacokinetics of levodopa may increase the understanding of how to individualize and fine-tune treatments. OBJECTIVES: This study aimed to investigate the pharmacokinetic profiles of levodopa-carbidopa and the motor function following a single-dose microtablet administration in Parkinson's disease. METHODS: This was a single-center, open-label, single-dose study in 19 patients experiencing motor fluctuations...
January 18, 2017: European Journal of Clinical Pharmacology
https://www.readbyqxmd.com/read/28099720/birth-characteristics-of-syrian-refugees-and-turkish-citizens-in-turkey-in-2015
#5
Hakan Demirci, Nevruz Yildirim Topak, Gokhan Ocakoglu, Mehtap Karakulak Gomleksiz, Emin Ustunyurt, Ayse Ulku Turker
OBJECTIVE: To compare the birth characteristics of Syrian refugees with those of Turkish citizens. METHODS: In a retrospective study, data were obtained for singleton live births that occurred at a hospital in Bursa, Turkey, between June 1 and December 31, 2015. All Syrian refugees were eligible for inclusion; one Turkish citizen was included for each refugee. RESULTS: Overall, 545 Syrian refugees and 545 Turkish citizens were included. Cesarean delivery was undertaken for 176 (32...
December 22, 2016: International Journal of Gynaecology and Obstetrics
https://www.readbyqxmd.com/read/28099502/clinical-and-immune-effects-of-lenalidomide-in-combination-with-gemcitabine-in-patients-with-advanced-pancreatic-cancer
#6
Gustav J Ullenhag, Fariba Mozaffari, Mats Broberg, Håkan Mellstedt, Maria Liljefors
PURPOSE: To assess the immunomodulatory and clinical effects of lenalidomide with standard treatment of gemcitabine in patients with advanced pancreatic cancer. PATIENTS AND METHODS: Patients with advanced pancreatic cancer were treated in first line with lenalidomide orally for 21 days of a 28 days cycle and the standard regimen for gemcitabine. In Part I, which we previously have reported, the dose of lenalidomide was defined (n = 12). In Part II, every other consecutive patient was treated with either lenalidomide (Group A, n = 11) or gemcitabine (Group B, n = 10) during cycle 1...
2017: PloS One
https://www.readbyqxmd.com/read/28099442/a-whole-genome-dartseq-and-snp-analysis-for-genetic-diversity-assessment-in-durum-wheat-from-central-fertile-crescent
#7
Faheem Shehzad Baloch, Ahmad Alsaleh, Muhammad Qasim Shahid, Vahdettin Çiftçi, Luis E Sáenz de Miera, Muhammad Aasim, Muhammad Azhar Nadeem, Husnu Aktaş, Hakan Özkan, Rüştü Hatipoğlu
Until now, little attention has been paid to the geographic distribution and evaluation of genetic diversity of durum wheat from the Central Fertile Crescent (modern-day Turkey and Syria). Turkey and Syria are considered as primary centers of wheat diversity, and thousands of locally adapted wheat landraces are still present in the farmers' small fields. We planned this study to evaluate the genetic diversity of durum wheat landraces from the Central Fertile Crescent by genotyping based on DArTseq and SNP analysis...
2017: PloS One
https://www.readbyqxmd.com/read/28098624/long-term-survival-in-adults-treated-with-extracorporeal-membrane-oxygenation-for-respiratory-failure-and-sepsis
#8
Viktor von Bahr, Jan Hultman, Staffan Eksborg, Björn Frenckner, Håkan Kalzén
OBJECTIVE: The use of extracorporeal membrane oxygenation in adults with respiratory failure and sepsis is steadily increasing, but the knowledge on long-term survival in this group is scarce. The aim of the present study was to investigate the 5-year survival rates and causes of late death in this group of patients. DESIGN: Single-center retrospective cohort study. SETTING: Karolinska University Hospital, Stockholm, Sweden. PATIENTS: Adult patients treated with extracorporeal membrane oxygenation for respiratory failure and sepsis between the service being established for adults in 1995 and December 2013...
February 2017: Critical Care Medicine
https://www.readbyqxmd.com/read/28097755/a-solution-processable-liquid-crystalline-semiconductor-for-low-temperature-annealed-air-stable-n-channel-field-effect-transistors
#9
Resul Ozdemir, Donghee Choi, Mehmet Ozdemir, Hyekyoung Kim, Sinem Tuncel Kostakoğlu, Mustafa Erkartal, Hyungsug Kim, Choongik Kim, Hakan Usta
A new solution-processable and air-stable liquid-crystalline n-channel organic semiconductor (α,ω-2OD-TIFDMT) employing a donor-acceptor-donor (D-A-D) type of π-conjugation has been designed, synthesized, and fully characterized. The new semiconductor exhibits a low LUMO energy (-4.19 eV) and a narrow optical band gap (1.35 eV). Typical pseudo focal-conic fan-shaped texture of a hexagonal columnar liquid crystalline (LC) phase was observed over a wide temperature range. The spin-coated semiconductor thin-films shows the formation of large (~0...
January 17, 2017: Chemphyschem: a European Journal of Chemical Physics and Physical Chemistry
https://www.readbyqxmd.com/read/28093830/age-affects-sleep-microstructure-more-than-sleep-macrostructure
#10
Johanna F A Schwarz, Torbjörn Åkerstedt, Eva Lindberg, Georg Gruber, Håkan Fischer, Jenny Theorell-Haglöw
It is well known that the quantity and quality of physiological sleep changes across age. However, so far the effect of age on sleep microstructure has been mostly addressed in small samples. The current study examines the effect of age on several measures of sleep macro- and microstructure in 211 women (22-71 years old) of the 'Sleep and Health in Women' study for whom ambulatory polysomnography was registered. Older age was associated with significantly lower fast spindle (effect size f(2)  = 0.32) and K-complex density (f(2)  = 0...
January 17, 2017: Journal of Sleep Research
https://www.readbyqxmd.com/read/28091767/intramuscular-myxoma-clinical-and-surgical-observation-notes-on-eleven-cases
#11
Yahya Baltu, Şefik Murat Arikan, Utku Can Dölen, Hakan Uzun, Banu İnce Alkan, Orhan Aydın
PURPOSE: Intramuscular myxoma (IM) is a benign, soft tissue neoplasm of mesenchymal origin. We report our experience with this tumour. METHOD: This clinical study comprised 11 cases of IM that were operated on between March 2008 and June 2016. Tumour location and size, results of pre-operative radiological studies, preop-erative biopsies, pathology examinations, applied surgical method and post-operative complications were reported for all patients. RESULTS: In total, nine patients with 11 IMs with a mean age of 60...
January 14, 2017: International Orthopaedics
https://www.readbyqxmd.com/read/28087424/clinical-applications-of-maldi-imaging-technologies-in-cancer-and-neurodegenerative-diseases
#12
REVIEW
Yasemin Ucal, Zeynep Aslıhan Durer, Hakan Atak, Elif Kadioglu, Betul Sahin, Abdurrahman Coskun, Ahmet Tarık Baykal, Aysel Ozpinar
Matrix-assisted laser desorption/ionization (MALDI) time-of-flight (TOF) imaging mass spectrometry (IMS) enables localization of analytes of interest along with histology. More specifically, MALDI-IMS identifies the distributions of proteins, peptides, small molecules, lipids, and drugs and their metabolites in tissues, with high spatial resolution. This unique capacity to directly analyze tissue samples without the need for lengthy sample preparation reduces technical variability and renders MALDI-IMS ideal for the identification of potential diagnostic and prognostic biomarkers and disease gradation...
January 10, 2017: Biochimica et Biophysica Acta
https://www.readbyqxmd.com/read/28081327/biliary-stenting-in-difficult-common-bile-duct-stones-a-single-tertiary-center-experience
#13
Mahmut Yüksel, Selçuk Dişibeyaz, Mustafa Kaplan, Erkan Parlak, Hakan Yıldız, İhsan Ates, Ertuğrul Kayaçetin
BACKGROUND/AIM: We aimed to examine the effect of plastic biliary stenting in the treatment of common bile duct (CBD) stones. MATERIALS AND METHODS: The data of 13,034 patients in our unit who had endoscopic retrograde cholangiopancreatography (ERCP) between 2008 and 2015 were scanned retrospectively. RESULTS: A biliary stent was placed in 61 of 74 patients. While the plastic biliary stent was placed in patients, the mean stone size after the 1st ERCP was 20 mm and the bile duct size was 13 mm...
December 20, 2016: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/28081322/does-cpap-treatment-affect-the-voice
#14
Güleser Saylam, Mustafa Şahin, Dilek Demiral, Ömer Bayır, Melike Bağnu Yüceege, Emel Çadallı Tatar, Mehmet Hakan Korkmaz
BACKGROUND/AIM: The aim of this study was to investigate alterations in voice parameters among patients using continuous positive airway pressure (CPAP) for the treatment of obstructive sleep apnea syndrome. MATERIALS AND METHODS: Patients with an indication for CPAP treatment without any voice problems and with normal laryngeal findings were included and voice parameters were evaluated before and 1 and 6 months after CPAP. Videolaryngostroboscopic findings, a self-rated scale (Voice Handicap Index-10, VHI-10), perceptual voice quality assessment (GRBAS: grade, roughness, breathiness, asthenia, strain), and acoustic parameters were compared...
December 20, 2016: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/28081307/the-demographics-and-histopathological-features-of-oral-cavity-cancers-in-turkey
#15
Mehmet Düzlü, Recep Karamert, Faruk Kadri Bakkal, Raşit Cevizci, Hakan Tutar, Mehmet Ekrem Zorlu, Alper Dilci, Fakih Cihat Eravcı
BACKGROUND/AIM: This study aimed to examine the demographics and histopathological features of oral cavity cancers (OCCs) managed in our clinic. MATERIALS AND METHODS: Patients who were diagnosed with OCCs in the Gazi University Otorhinolaryngology Department between the years 1993 and 2013 were retrospectively enrolled in the study. Surgical archive charts and pathology records were reviewed in detail regarding the anatomical and histopathological profiles of the tumors, as well as the demographic data of the patients...
December 20, 2016: Turkish Journal of Medical Sciences
https://www.readbyqxmd.com/read/28081049/the-first-infant-death-associated-with-human-coronavirus-nl63-infection
#16
Capan Konca, Gulay Korukluoglu, Mehmet Tekin, Habip Almis, İbrahim Hakan Bucak, Hatice Uygun, Ayse Basak Altas, Fatma Bayrakdar
Human coronavirus NL63 (HCoV-NL63) primarily infects the upper respiratory tract. However, it may cause severe lower respiratory tract infection, and the clinical course may be severe in immunocompromised patients. To our knowledge, child death due to HCoV-NL63 has not been reported. We present a fatal lower respiratory tract disease associated with HCoV-NL63 in a 7-month-old malnourished infant.
February 2017: Pediatric Infectious Disease Journal
https://www.readbyqxmd.com/read/28079652/long-term-survival-and-causes-of-late-death-in-children-treated-with-extracorporeal-membrane-oxygenation
#17
Viktor von Bahr, Jan Hultman, Staffan Eksborg, Roxana Gerleman, Øyvind Enstad, Björn Frenckner, Håkan Kalzén
OBJECTIVE: Extracorporeal membrane oxygenation has been used in patients with severe circulatory or respiratory failure since the 1970s, but the knowledge on long-term survival in this group is scarce. The aim of the present study was to investigate the 10-year survival rates and causes of late death in children treated with extracorporeal membrane oxygenation. DESIGN: Single-center, retrospective cohort study. SETTING: Tertiary referral center for extracorporeal life support...
January 10, 2017: Pediatric Critical Care Medicine
https://www.readbyqxmd.com/read/28079610/influence-of-the-localization-of-frontal-bone-defects-on-primary-stability-values-of-2-different-implant-designs-an-in-vitro-study
#18
Ugur Mercan, Hakan Bilhan, Deniz Gokce Meral, Sehnaz Kazokoglu, Gokce Aykol-Sahin, Onur Geckili
OBJECTIVES: The aim of this study was to determine the influence of different frontal bone defect localizations on primary stability values of 2 different implant designs. MATERIALS AND METHODS: Eight cow rib segments were prepared before implant installation, as 2 segments with coronal, 2 with middle, and 2 with apical defects and 2 with control. Thirty-two cylindrical and 32 tapered implants were placed in the remaining 4 segments. Implant stability measurements were performed using electronic percussive testing and resonance frequency analysis...
January 11, 2017: Implant Dentistry
https://www.readbyqxmd.com/read/28076566/efficacy-of-aflibercept-on-exudative-age-related-macular-degeneration-in-patients-exhibiting-complete-ranibizumab-resistance-and-tachyphylaxis
#19
Gokcen Gokce, Ali Hakan Durukan, Mehmet Talay Koylu, Murat Kucukevcilioglu
Purpose: The present study compared the efficacy of aflibercept for neovascular age-related macular degeneration (NV-AMD) in patients with complete ranibizumab resistance and tachyphylaxis. Methods: Forty-four eyes of 38 neovascular age-related macular degeneration patients were evaluated. Eyes were divided into a complete resistance group (n=23 eyes) and tachyphylaxis group (n=21 eyes). Results: After three injections, eight (38.1%) patients in the tachyphylaxis group and nine (39...
November 2016: Arquivos Brasileiros de Oftalmologia
https://www.readbyqxmd.com/read/28076461/an-in-vitro-evaluation-of-various-irrigation-techniques-for-the-removal-of-double-antibiotic-paste-from-root-canal-surfaces
#20
Hakan Gokturk, Ismail Ozkocak, Fevzi Buyukgebiz, Osman Demir
Objective: The aim of this study was to investigate the effectiveness of conventional syringe irrigations, passive ultrasonic irrigation (PUI), Vibringe, CanalBrush, XP-endo Finisher, and laser-activated irrigation (LAI) systems in removing double antibiotic paste (DAP) from root canals. Material and Methods: One hundred five extracted single-rooted teeth were instrumented. The roots were split longitudinally. Three standard grooves were created and covered with DAP...
November 2016: Journal of Applied Oral Science: Revista FOB
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