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https://www.readbyqxmd.com/read/29021352/successful-motor-mapping-with-transcranial-magnetic-stimulation-in-an-infant-a-case-report
#1
Shalini Narayana, Basanagoud Mudigoudar, Abbas Babajani-Feremi, Asim F Choudhri, Frederick A Boop
No abstract text is available yet for this article.
October 11, 2017: Neurology
https://www.readbyqxmd.com/read/28986227/anterior-cervical-discectomy-with-instrumented-allograft-fusion-lordosis-restoration-and-comparison-of-functional-outcomes-among-patients-of-different-age-groups
#2
Dario Muzevic, Bruno Splavski, Frederick A Boop, Kenan I Arnautovic
OBJECTIVE: To investigate clinical parameters of anterior cervical discectomy and fusion (ACDF) treatment and outcomes using osseous allograft in different age groups, study postoperative results of restoring of lordosis, and evaluate the utility of bone allografts for ACDF, including graft subsidence. METHODS: We reviewed data from 154 patients having clinical symptoms and radiological signs of disc herniation and/or cervical spondylosis. Decompression was achieved through discectomy, osteophyte ablation, endplate drilling, and foraminotomy...
October 3, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28931256/the-posterior-transcallosal-approach-to-the-pineal-region-and-posterior-third-ventricle-intervenous-and-paravenous-variants
#3
Prayash G Patel, Aaron A Cohen-Gadol, Philippe Mercier, Frederick A Boop, Paul Klimo
BACKGROUND: There are a number of surgical approaches to the posterior third ventricle and pineal region, each with its associated advantages and disadvantages. OBJECTIVE: To present our experience with the posterior interhemispheric transcallosal approach and to analyze the indications, technique, and outcomes. METHODS: A retrospective study was conducted to identify and analyze all children and young adults who underwent the posterior transcallosal approach from July 2010 to March 2015...
February 1, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/28763944/determination-of-steroid-hormones-in-fish-tissues-by-microwave-assisted-extraction-coupled-to-ultra-high-performance-liquid-chromatography-tandem-mass-spectrometry
#4
Rayco Guedes-Alonso, Zoraida Sosa-Ferrera, José Juan Santana-Rodríguez
Steroid hormones produce adverse effects on biota as well as bioaccumulation in fish and seafood, making it necessary to develop methodologies to evaluate these compounds in samples related to the food chain. This work presents an analytical method for evaluating 15 steroid hormones in fish tissue. It is based on microwave-assisted extraction and solid-phase extraction coupled to ultra-high-performance liquid chromatography tandem mass spectrometry (MAE-SPE-UHPLC-MS/MS). The proposed method shows appropriate detection limits (0...
December 15, 2017: Food Chemistry
https://www.readbyqxmd.com/read/28728846/the-effects-of-type-i-interferon-on-glioblastoma-cancer-stem-cells
#5
Ziyun Du, Chun Cai, Michelle Sims, Frederick A Boop, Andrew M Davidoff, Lawrence M Pfeffer
Glioblastomas (GBMs) are highly invasive brain tumors that are extremely deadly. The highly aggressive nature of GBM as well as its heterogeneity at the molecular and cellular levels has been attributed to a rare subpopulation of GBM stem-like cells (GSCs). Interferons (IFNs) are a family of endogenous antiviral proteins that have anticancer activity in vitro, and have been used clinically to treat GBM. IFN inhibits the proliferation of various established GBM cell lines, but the effects of IFNs on GSCs remain relatively unknown...
September 16, 2017: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/28716297/on-the-relative-merits-of-invasive-and-non-invasive-pre-surgical-brain-mapping-new-tools-in-ablative-epilepsy-surgery
#6
Andrew C Papanicolaou, Roozbeh Rezaie, Shalini Narayana, Asim F Choudhri, Abbas-Babajani-Feremi, Frederick A Boop, James W Wheless
Cortical Stimulation Mapping (CSM) and the Wada procedure have long been considered the gold standard for localizing motor and language-related cortical areas and for determining the language and memory-dominant hemisphere, respectively. In recent years, however, non-invasive methods such as magnetoencephalography (MEG), functional magnetic resonance imaging (fMRI), and transcranial magnetic stimulation (TMS) have emerged as promising alternatives to the aforementioned procedures, particularly in cases where the invasive localization of eloquent cortex has proven to be challenging...
July 3, 2017: Epilepsy Research
https://www.readbyqxmd.com/read/28708330/mortality-in-children-with-low-grade-glioma-or-glioneuronal-tumors-a-single-institution-study
#7
Santhosh A Upadhyaya, Yahya Ghazwani, Shengjie Wu, Alberto Broniscer, Fredrick A Boop, Amar Gajjar, Ibrahim Qaddoumi
BACKGROUND: While pediatric low-grade glioma/glioneuronal tumors (LGG/LGGNTs) are considered slow-growing, indolent tumors with excellent long-term prognosis, mortality due to the disease is not unknown. Few studies have addressed the cause of death in this population. METHODS: Retrospective review of clinicopathologic and radiologic data for children 21 years or younger with LGG/LGGNT who died at St. Jude Children's Research Hospital between April 1985 and June 2015...
July 14, 2017: Pediatric Blood & Cancer
https://www.readbyqxmd.com/read/28686121/surgical-and-molecular-considerations-in-the-treatment-of-pediatric-thalamopeduncular-tumors
#8
Ryan P Lee, Kimberly A Foster, Jock C Lillard, Paul Klimo, David W Ellison, Brent Orr, Frederick A Boop
OBJECTIVE Thalamopeduncular tumors are a group of pediatric low-grade gliomas that arise at the interface of the thalamus and brainstem peduncle. They typically occur within the first 2 decades of life, presenting with progressive spastic hemiparesis. Treatment strategies, including surgical intervention, have varied significantly. The authors present their experience in the treatment of 13 children, ages 2-15 years, with non-neurofibromatosis-related pilocytic astrocytomas located in the thalamopeduncular region...
September 2017: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/28674731/tractography-guides-the-approach-for-resection-of-thalamopeduncular-tumors
#9
Ryan Foley, Frederick Boop
BACKGROUND: Thalamopeduncular tumors arise at the junction of the inferior thalamus and cerebral peduncle, and present with a common clinical syndrome of progressive spastic hemiparesis. METHOD: Formal preoperative magnetic resonance imaging (MRI) and diffusion tensor imaging (DTI) were performed. Postoperative MRI was obtained to evaluate the extent of tumor resection. A prospective analysis of clinical outcomes was then conducted by the senior author. CONCLUSIONS: Preoperative tractography is a useful adjunct to surgical planning in tumors that displace motor pathways...
July 3, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/28596060/-medical-prevention-and-treatment-of-radiation-induced-pulmonary-complications
#10
REVIEW
A Vallard, C Rancoule, H Le Floch, J-B Guy, S Espenel, C Le Péchoux, É Deutsch, N Magné, C Chargari
Radiation-induced lung injuries mainly include the (acute or sub-acute) radiation pneumonitis, the lung fibrosis and the bronchiolitis obliterans organizing pneumonia (BOOP). The present review aims at describing the diagnostic process, the current physiopathological knowledge, and the available (non dosimetric) preventive and curative treatments. Radiation-induced lung injury is a diagnosis of exclusion, since clinical, radiological, or biological pathognomonic evidences do not exist. Investigations should necessarily include a thoracic high resolution CT-scan and lung function tests with a diffusing capacity of the lung for carbon monoxide...
August 2017: Cancer Radiothérapie: Journal de la Société Française de Radiothérapie Oncologique
https://www.readbyqxmd.com/read/28574318/pediatric-abusive-head-trauma-and-stroke
#11
Nickalus R Khan, Brittany D Fraser, Vincent Nguyen, Kenneth Moore, Scott Boop, Brandy N Vaughn, Paul Klimo
OBJECTIVE Despite established risk factors, abusive head trauma (AHT) continues to plague our communities. Cerebrovascular accident (CVA), depicted as areas of hypodensity on CT scans or diffusion restriction on MR images, is a well-known consequence of AHT, but its etiology remains elusive. The authors hypothesize that a CVA, in isolation or in conjunction with other intracranial injuries, compounds the severity of a child's injury, which in turn leads to greater health care utilization, including surgical services, and an increased risk of death...
August 2017: Journal of Neurosurgery. Pediatrics
https://www.readbyqxmd.com/read/28540667/neurocognitive-functioning-in-pediatric-craniopharyngioma-performance-before-treatment-with-proton-therapy
#12
Ashley S Fournier-Goodnight, Jason M Ashford, Thomas E Merchant, Frederick A Boop, Daniel J Indelicato, Lei Wang, Hui Zhang, Heather M Conklin
The goal of this study was to investigate the impact of patient-, disease-, and treatment-related variables upon neurocognitive outcomes in pediatric patients with craniopharyngioma prior to treatment with proton therapy or observation after radical resection. For all participants (N = 104), relevant clinical and demographic variables were attained and neurocognitive evaluations completed prior to irradiation or planned observation. One-sample t-tests were conducted to compare performance to published normative data...
August 2017: Journal of Neuro-oncology
https://www.readbyqxmd.com/read/28532906/first-report-of-coexistence-of-two-ectopic-pituitary-tumors-rathke-cleft-cyst-and-silent-adrenocorticotropic-hormone-adenoma
#13
Mirza Pojskić, Blazej Zbytek, Neal S Beckford, Frederick A Boop, Kenan I Arnautović
BACKGROUND: Rathke cleft cysts (RCCs) and pituitary adenomas (PAs) are thought to have a common embryonic ancestry; however, PAs with a concomitant RCC inside the sella turcica are rarely observed. Ectopic pituitary tumors are also rare. CASE DESCRIPTION: We present the case of a 65-year-old woman with an ectopic RCC in the sphenoid sinus and outside the sella turcica concomitant with an adrenocorticotropic hormone (ACTH)-staining, clinically silent PA. The patient had headache but no endocrine or visual disturbances...
August 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28487419/membrane-depolarization-activates-bk-channels-through-rock-mediated-%C3%AE-1-subunit-surface-trafficking-to-limit-vasoconstriction
#14
M Dennis Leo, Xue Zhai, Padmapriya Muralidharan, Korah P Kuruvilla, Simon Bulley, Frederick A Boop, Jonathan H Jaggar
Membrane depolarization of smooth muscle cells (myocytes) in the small arteries that regulate regional organ blood flow leads to vasoconstriction. Membrane depolarization also activates large-conductance calcium (Ca(2+))-activated potassium (BK) channels, which limits Ca(2+) channel activity that promotes vasoconstriction, thus leading to vasodilation. We showed that in human and rat arterial myocytes, membrane depolarization rapidly increased the cell surface abundance of auxiliary BK β1 subunits but not that of the pore-forming BKα channels...
May 9, 2017: Science Signaling
https://www.readbyqxmd.com/read/28409726/the-suboccipital-ligament
#15
Kelsey Alabaster, M Fred Bugg, Bruno Splavski, Frederick A Boop, Kenan I Arnautovic
OBJECTIVE A fibrous structure located dorsal to the dura at the posterior craniocervical junction stretches horizontally between the bilateral occipital condyles and the upper borders of the C-1 laminae. Partially covered by the occipital bone, this structure is always encountered when the bone is removed from the foramen magnum rim during approaches to the posterior cranial fossa. Although known to surgeons, this structure has not been defined, studied, or named. The most appropriate name for this structure is "the suboccipital ligament," and a detailed rationale for this name is provided...
April 14, 2017: Journal of Neurosurgery
https://www.readbyqxmd.com/read/28407022/gap-analysis-on-the-biology-of-mediterranean-marine-fishes
#16
Donna Dimarchopoulou, Konstantinos I Stergiou, Athanassios C Tsikliras
We estimated the current level of knowledge concerning several biological characteristics of the Mediterranean marine fishes by carrying out a gap analysis based on information extracted from the literature, aiming to identify research trends and future needs in the field of Mediterranean fish biology that can be used in stock assessments, ecosystem modeling and fisheries management. Based on the datasets that emerged from the literature review, there is no information on any biological characteristic for 43% (n = 310) of the Mediterranean fish species, whereas for an additional 15% (n = 109) of them there is information about just one characteristic...
2017: PloS One
https://www.readbyqxmd.com/read/28327927/pineoblastoma-the-experience-at-st-jude-children-s-research-hospital
#17
Kara A Parikh, Garrett T Venable, Brent A Orr, Asim F Choudhri, Frederick A Boop, Amar J Gajjar, Paul Klimo
BACKGROUND: Pineoblastomas are rare, supratentorial, primitive neuroectodermal tumors. OBJECTIVE: To document outcomes with multimodal therapy and evaluate the impact that the degree of surgical resection has on outcome. METHODS: A departmental brain tumor database was queried to identify all patients with pathologically proven pineoblastoma who were treated from January 1997 to June 2015 at St. Jude Children's Research Hospital. For each patient, we recorded demographic, pathological, radiological, surgical, and clinical follow-up data...
July 1, 2017: Neurosurgery
https://www.readbyqxmd.com/read/28266889/lung-injury-pathways-adenosine-receptor-2b-signaling-limits-development-of-ischemic-bronchiolitis-obliterans-organizing-pneumonia
#18
John C Densmore, Terry R Schaid, Paul M Jeziorczak, Meetha Medhora, Said Audi, Shraddha Nayak, John Auchampach, Melinda R Dwinell, Aron M Geurts, Elizabeth R Jacobs
Purpose/Aim of the Study: Adenosine signaling was studied in bronchiolitis obliterans organizing pneumonia (BOOP) resulting from unilateral lung ischemia. MATERIALS AND METHODS: Ischemia was achieved by either left main pulmonary artery or complete hilar ligation. Sprague-Dawley (SD) rats, Dahl salt sensitive (SS) rats and SS mutant rat strains containing a mutation in the A2B adenosine receptor gene (Adora2b) were studied. Adenosine concentrations were measured in bronchoalveolar lavage (BAL) by HPLC...
February 2017: Experimental Lung Research
https://www.readbyqxmd.com/read/28106480/radio-pathological-correlation-of-organizing-pneumonia-op-a-pictorial-review
#19
REVIEW
Mohammad Zare Mehrjardi, Shahram Kahkouee, Mihan Pourabdollah
Since the description of cryptogenic organizing pneumonia in 1983 by Davison et al and the subsequent report on bronchiolitis obliterans organizing pneumonia by Epler et al, some reports have been published regarding the imaging features of organizing pneumonia (OP). In this pictorial review, we aimed to describe and illustrate different manifestations of OP on high-resolution CT (HRCT) accompanied by their histopathological correlations for a better comprehension of pathomechanism of the radiological findings...
March 2017: British Journal of Radiology
https://www.readbyqxmd.com/read/28096986/extracorporeal-membrane-oxygenation-rescue-in-adolescent-with-bronchiolitis-obliterans-organizing-pneumonia-like-wegener-s-granulomatosis
#20
Lars Falk, Lars Mikael Broman
We report a 17-year-old woman with bronchiolitis obliterans-organizing pneumonia (BOOP)-like granulomatosis with polyangiitis developing severe airway obliterations. Pending age, phase and grade of autoimmune treatment, and offering ECMO treatment may be crucial for survival but occasionally preface futility. ECMO-treated patient with BOOP-like GPA has never been described before.
January 2017: Clinical Case Reports
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