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https://www.readbyqxmd.com/read/28643328/drug-repurposing-by-simulating-flow-through-protein-protein-interaction-networks
#1
M Manczinger, V Bodnár, B T Papp, B Sz Bolla, K Szabó, B Balázs, E Csányi, E Szél, G Erős, L Kemény
As drug development is extremely expensive, the identification of novel indications for in-market drugs is financially attractive. Multiple algorithms are used to support such drug repurposing, but highly reliable methods combining simulation of intracellular networks and machine learning are currently not available. We developed an algorithm that simulates drug effects on the flow of information through protein-protein interaction networks, and uses Support Vector Machine to identify potentially effective drugs in our model disease, psoriasis...
June 23, 2017: Clinical Pharmacology and Therapeutics
https://www.readbyqxmd.com/read/28642695/concealed-around-the-ear-eeg-captures-cognitive-processing-in-a-visual-simon-task
#2
Marlene Pacharra, Stefan Debener, Edmund Wascher
In theory, miniaturized systems such as the around-the-ear electrode arrays (cEEGrids) enable mobile monitoring of the electroencephalogram (EEG) in a variety of real life situations without interfering with the natural setting. However, the research benefit of such cEEGrid recordings critically depends on their validity. To investigate whether visual and motor processing are reflected in the cEEGrid-EEG, a direct comparison of EEG that was concurrently recorded with the cEEGrids and with a high-density cap setup was conducted...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28642679/assessment-of-ipsilateral-efferent-effects-in-human-via-ecochg
#3
Eric Verschooten, Elizabeth A Strickland, Nicolas Verhaert, Philip X Joris
Development of electrophysiological means to assess the medial olivocochlear (MOC) system in humans is important to further our understanding of the function of that system and for the refinement and validation of psychoacoustical and otoacoustic emission methods which are thought to probe the MOC. Based on measurements in anesthetized animals it has been hypothesized that the MOC-reflex (MOCR) can enhance the response to signals in noise, and several lines of evidence support such a role in humans. A difficulty in these studies is the isolation of efferent effects...
2017: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/28642583/sox2-is-required-for-inner-ear-neurogenesis
#4
Aleta R Steevens, Danielle L Sookiasian, Jenna C Glatzer, Amy E Kiernan
Neurons of the cochleovestibular ganglion (CVG) transmit hearing and balance information to the brain. During development, a select population of early otic progenitors express NEUROG1, delaminate from the otocyst, and coalesce to form the neurons that innervate all inner ear sensory regions. At present, the selection process that determines which otic progenitors activate NEUROG1 and adopt a neuroblast fate is incompletely understood. The transcription factor SOX2 has been implicated in otic neurogenesis, but its requirement in the specification of the CVG neurons has not been established...
June 22, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28641772/susac-syndrome-a-differential-diagnosis-of-white-matter-lesions
#5
Mariano Marrodan, Jorge Correale, Lucas Alessandro, Mariela Amaya, Maria Eugenia Fracaro, Alejandro Alfredo Köhler, Marcela Fiol
INTRODUCTION: Susac Syndrome is an autoimmune endotheliopathy affecting capillaries and precapillary arterioles of the brain, inner ear and retina. The classic symptom triad includes visual disturbances, hypoacusia, and encephalopathy, but is rarely fully manifest at onset. The syndrome typically follows an active fluctuating monophasic course. Typical imaging findings on brain magnetic resonance show central fiber microischemias/microinfarctions of the corpus callosum known as "snow balls", as well as lineal infarcts and upper callosal fiber involvement...
July 2017: Multiple Sclerosis and related Disorders
https://www.readbyqxmd.com/read/28641452/anti-inflammatory-and-antiproliferative-activities-of-ixora-brevifolia-benth-rubiaceae
#6
Rebeca P Medina, Vagner M de Moura, Cleuza C da Silva, Cecília M A de Oliveira, Lucilia Kato, Armando M Pomini, João E de Carvalho, Ana Lúcia T G Ruiz, Ciomar A Bersani-Amado, Silvana M O Santin
The crude extract and fractions from the branches of Ixora brevifolia, a tree found in the Brazilian Cerrado, were tested for anti-inflammatory and in vitro antiproliferative effects. The crude extract and n-hexane fraction exhibited significant inhibition of ear oedema in mice, while n-hexane-precipitated and chloroform fractions strongly inhibited the myeloperoxidase activity in ear tissue. The n-hexane and n-hexane-precipitated fractions showed strong growth inhibition for glioma cell line and the hydromethanolic fraction inhibited the growth of leukaemia cell line...
June 23, 2017: Natural Product Research
https://www.readbyqxmd.com/read/28641356/-tracheal-surgery
#7
Jan Volmerig, Erich Hecker
Surgery of the trachea is a specialised field in which many disciplines work jointly due to the variety of indications and the extended topography. Not only because of its particular functional importance, but also because of its complex morphology, anatomy and physiology, this organ represents a special therapeutic challenge. A variety of diseases require surgical procedures of the trachea; the therapeutic strategy is influenced both by the disease itself as well as patient-dependent parameters. Regardless of the nature of the underlying disorder, good results require a high level of expertise in airway management, a careful diagnosis and interventional planning as well as an experienced surgical team that masters extended operative techniques...
June 2017: Zentralblatt Für Chirurgie
https://www.readbyqxmd.com/read/28641325/superior-canal-dehiscence-syndrome-associated-with-scuba-diving
#8
Naoharu Kitajima, Akemi Sugita-Kitajima, Seiji Kitajima
A 28-year-old female diver presented with dizziness and difficulty clearing her left ear whilst scuba diving. Her pure-tone audiometry and tympanometry were normal. Testing of Eustachian tube function revealed tubal stenosis. Video-oculography revealed a predominantly torsional nystagmus while the patient was in the lordotic position. Fistula signs were positive. High-resolution computed tomography (HRCT) of the temporal bone revealed a diagnosis of bilateral superior semicircular canal dehiscence (SCDS). Cervical vestibular-evoked myogenic potential (cVEMP) testing showed that the amplitude of the cVEMP measured from her left ear was larger than that from the right...
June 2017: Diving and Hyperbaric Medicine: the Journal of the South Pacific Underwater Medicine Society
https://www.readbyqxmd.com/read/28641322/scuba-diving-and-otology-a-systematic-review-with-recommendations-on-diagnosis-treatment-and-post-operative-care
#9
REVIEW
Devon M Livingstone, Kristine A Smith, Beth Lange
Scuba diving is a popular recreational and professional activity with inherent risks. Complications related to barotrauma and decompression illness can pose significant morbidity to a diver's hearing and balance systems. The majority of dive-related injuries affect the head and neck, particularly the outer, middle and inner ear. Given the high incidence of otologic complications from diving, an evidence-based approach to the diagnosis and treatment of otic pathology is a necessity. We performed a systematic and comprehensive literature review including the pathophysiology, diagnosis, and treatment of otologic pathology related to diving...
June 2017: Diving and Hyperbaric Medicine: the Journal of the South Pacific Underwater Medicine Society
https://www.readbyqxmd.com/read/28640916/severe-hearing-impairment-and-risk-of-depression-a-national-cohort-study
#10
So Young Kim, Hyung-Jong Kim, Eun-Kyu Park, Jiwon Joe, Songyong Sim, Hyo Geun Choi
OBJECTIVE: Hearing impairment is suggested to be associated with depression in the elderly. The present study evaluated the risk of depression after hearing impairment in all age groups matched by age, sex, income, and region of residence. METHODS: The Korean Health Insurance Review and Assessment Service-National Patient Samples were collected for a period from 2002 to 2013. Hearing impairment was defined as a hearing threshold ≥ 60 dB in both ears or as ≥ 80 dB in one ear and ≥ 40 dB in one ear...
2017: PloS One
https://www.readbyqxmd.com/read/28640866/diet-induced-adipose-tissue-expansion-is-mitigated-in-mice-with-a-targeted-inactivation-of-mesoderm-specific-transcript-mest
#11
Rea P Anunciado-Koza, Justin Manuel, Randall L Mynatt, Jingying Zhang, Leslie P Kozak, Robert A Koza
Interindividual variation of white adipose tissue (WAT) expression of mesoderm specific transcript (Mest), a paternally-expressed imprinted gene belonging to the α/β-hydrolase fold protein family, becomes apparent among genetically inbred mice fed high fat diet (HFD) and is positively associated with adipose tissue expansion (ATE). To elucidate a role for MEST in ATE, mice were developed with global and adipose tissue inactivation of Mest. Mice with homozygous (MestgKO) and paternal allelic (MestpKO) inactivation of Mest were born at expected Mendelian frequencies, showed no behavioral or physical abnormalities, and did not perturb expression of the Mest locus-derived microRNA miR-335...
2017: PloS One
https://www.readbyqxmd.com/read/28640732/do-nurse-staffing-levels-affect-patient-mortality-in-acute-secondary-care
#12
Barry Hill
This systematic literature review explores and considers whether registered nurse staffing levels affect patient mortality in acute secondary care settings. A discussion makes particular reference to the philosophical foundations of contrasting research approaches used within the literature. At the time of writing, the author was a modern matron for surgery, managing the ear, nose and throat; head and neck; airway; and reconstructive plastic surgery services in a large acute teaching hospital in central London...
June 22, 2017: British Journal of Nursing: BJN
https://www.readbyqxmd.com/read/28640533/high-risk-squamous-cell-carcinoma-of-the-ear-a-potential-role-for-sentinel-node-biopsy
#13
Suzanne Beecher, Paula F Wrafter, Cormac W Joyce, Padraic J Regan, Jack L Kelly
BACKGROUND: Squamous cell carcinomas (SCCs) of the external ear have a significant rate of metastasis. The purpose of this study was to present analyzed factors associated with auricular SCC metastasis in order to identify a group that may benefit from sentinel lymph node biopsy (SLNB). METHODS: We performed a retrospective review of all operable SCCs between 2009 and 2014. The association between high-risk features and metastasis were analyzed. RESULTS: One hundred eighty-nine auricular SCCs were excised...
June 22, 2017: Head & Neck
https://www.readbyqxmd.com/read/28639938/a-pilot-study-of-large-scale-production-of-mutant-pigs-by-enu-mutagenesis
#14
Tang Hai, Chunwei Cao, Haitao Shang, Weiwei Guo, Yanshuang Mu, Shulin Yang, Ying Zhang, Qiantao Zheng, Tao Zhang, Xianlong Wang, Yu Liu, Qingran Kong, Kui Li, Dayu Wang, Meng Qi, Qianlong Hong, Rui Zhang, Xiupeng Wang, Qitao Jia, Xiao Wang, Guosong Qin, Yongshun Li, Ailing Luo, Weiwu Jin, Jing Yao, Jiaojiao Huang, Hongyong Zhang, Menghua Li, Xiangmo Xie, Xuejuan Zheng, Kenan Guo, Qinhua Wang, Shibin Zhang, Liang Li, Fei Xie, Yu Zhang, Xiaogang Weng, Zhi Yin, Kui Hu, Yimei Cong, Peng Zheng, Hailong Zou, Leilei Xin, Jihan Xia, Jinxue Ruan, Hegang Li, Weiming Zhao, Jing Yuan, Zizhan Liu, Weiwang Gu, Ming Li, Yong Wang, Hongmei Wang, Shiming Yang, Zhonghua Liu, Hong Wei, Jianguo Zhao, Qi Zhou, Anming Meng
N-ethyl-N-nitrosourea (ENU) mutagenesis is a powerful tool to efficiently generate large scale of mutants and discover genes with novel functions at the whole-genome level in C. elegans, flies, zebrafish and mice, but has never been tried in large model animals. In the current study, we reported a successful systematic three-generation ENU mutagenesis screening in pigs with the establishment of Chinese Swine Mutagenesis Consortium. A total of 6,770 G1 and 6,800 G3 pigs were screened, 36 dominant and 91 recessive novel pig families with various phenotypes were established...
June 22, 2017: ELife
https://www.readbyqxmd.com/read/28639843/characteristics-of-children-with-unilateral-hearing-loss
#15
Elizabeth M Fitzpatrick, Rakan S Al-Essa, JoAnne Whittingham, Jessica Fitzpatrick
OBJECTIVE: The purpose of this study was to describe the clinical characteristics of children with unilateral hearing loss (UHL), examine deterioration in hearing, and explore amplification decisions. DESIGN: Population-based data were collected prospectively from time of diagnosis. Serial audiograms and amplification details were retrospectively extracted from clinical charts to document the trajectory and management of hearing loss. SAMPLE: The study included all children identified with UHL in one region of Canada over a 13-year period (2003-2015) after implementation of universal newborn hearing screening...
June 22, 2017: International Journal of Audiology
https://www.readbyqxmd.com/read/28639557/effects-of-selective-seratonine-re-uptake-inhibitors-on-meniere-s-disease
#16
Olcay Kıroğlu, Özgür Sürmelioğlu, Mete Kıroğlu
OBJECTIVE: To evaluate the effects of selective serotonin re-uptake inhibitors (SSRIs) on Meniere's disease (MD) on patients who have both MD and generalized anxiety disorder. MATERIALS AND METHODS: All patients were evaluated with neurotologic examination, videonystagmography, audiological tests, and inner ear magnetic resonance imaging. Characteristic history and the evaluation of the patients' vertigo attacks during the attacks were the primary criteria for the diagnosis of MD...
June 21, 2017: Journal of International Advanced Otology
https://www.readbyqxmd.com/read/28639556/caloric-analysis-of-patients-with-benign-paroxysmal-positional-vertigo
#17
Sertaç Yetişer, Dilay İnce
OBJECTIVE: The aim of this study is to compare nystagmus characteristics after caloric irrigation in patients with lateral canal (LC) and posterior canal (PC) benign paroxysmal positional vertigo (BPPV) and to analyze the role of symptom duration. MATERIALS AND METHODS: A prospective study was conducted in 65 patients with BPPV (20 LC and 45 PC) who were subjected to caloric testing. Average slow-phase velocity and nystagmus duration were analyzed. RESULTS: Caloric hypo-excitability was 20...
June 21, 2017: Journal of International Advanced Otology
https://www.readbyqxmd.com/read/28639553/can-we-improve-pressure-feedback-methods-in-vestibular-evoked-myogenic-potentials-by-applying-custom-pressures
#18
Ömer Afşin Özmen, Kasım Özlük, Süay Özmen, Oğuz Basut
OBJECTIVE: The aim of the present study was to use constant and customized pressure levels to improve the feedback method of the blood pressure cuff technique in order to decrease intra-subject and inter-subject variability. MATERIALS AND METHODS: The study was conducted in two stages. In the first stage, the relationship between the pressure level generated in the blood pressure cuff and electromyographic response in the sternocleidomastoid (SCM) muscle was investigated...
June 21, 2017: Journal of International Advanced Otology
https://www.readbyqxmd.com/read/28638289/diagnosis-and-treatment-of-hereditary-hemorrhagic-telangiectasia
#19
REVIEW
Cameron Grigg, Daniel Anderson, James Earnshaw
BACKGROUND: Hereditary hemorrhagic telangiectasia (HHT) is a rare genetic disorder known for its debilitating symptoms. More than 90% of patients with HHT experience epistaxis, and they average up to 18 bleeds per month. We review the current literature on the pathophysiology, clinical presentation, and management of HHT. METHODS: We searched MEDLINE, EMBASE, and PubMed and identified 19 articles published since 2000 with current information on HHT. RESULTS: HHT is a disease more commonly associated with significant morbidity rather than mortality...
2017: Ochsner Journal
https://www.readbyqxmd.com/read/28637710/the-combined-action-of-duplicated-boron-transporters-is-required-for-maize-growth-in-boron-deficient-conditions
#20
Mithu Chatterjee, Qiujie Liu, Caitlin Menello, Mary Galli, Andrea Gallavotti
The micronutrient boron is essential in maintaining the structure of plant cell walls and is critical for high yields in crop species. Boron can move into plants by diffusion or by active and facilitated transport mechanisms. We recently showed that mutations in the maize boron efflux transporter ROTTEN EAR (RTE) cause severe developmental defects and sterility. RTE is part of a small gene family containing five additional members (RTE2-RTE6) that show tissue specific expression. The close paralogous gene RTE2 encodes a protein with 95% amino acid identity with RTE and is similarly expressed in shoot and root cells surrounding the vasculature...
June 21, 2017: Genetics
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