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https://www.readbyqxmd.com/read/28445774/voxresnet-deep-voxelwise-residual-networks-for-brain-segmentation-from-3d-mr-images
#1
REVIEW
Hao Chen, Qi Dou, Lequan Yu, Jing Qin, Pheng-Ann Heng
Segmentation of key brain tissues from 3D medical images is of great significance for brain disease diagnosis, progression assessment and monitoring of neurologic conditions. While manual segmentation is time-consuming, laborious, and subjective, automated segmentation is quite challenging due to the complicated anatomical environment of brain and the large variations of brain tissues. We propose a novel voxelwise residual network (VoxResNet) with a set of effective training schemes to cope with this challenging problem...
April 23, 2017: NeuroImage
https://www.readbyqxmd.com/read/28445657/aquatic-bird-bornavirus-associated-disease-in-free-living-canada-geese-branta-canadensis-in-the-northeastern-united-states
#2
Maureen Murray, Jianhua Guo, Ian Tizard, Samuel Jennings, H L Shivaprasad, Susan Payne, Julie C Ellis, Arnaud J Van Wettere, Kathleen M O'Brien
During the winter of 2013-14, 22 Canada geese ( Branta canadensis ) were admitted to the Wildlife Clinic at the Cummings School of Veterinary Medicine at Tufts University with nonspecific neurologic abnormalities and emaciation. Five of these geese, along with three geese that were submitted dead, were evaluated via histopathology, immunohistochemistry, and reverse transcription PCR (RT-PCR) for bornaviruses. Histopathologically, six of the eight birds had lymphoplasmacytic encephalitis. One bird, which also had encephalitis, had a dilated esophagus...
April 26, 2017: Journal of Wildlife Diseases
https://www.readbyqxmd.com/read/28445615/status-epilepticus-in-dogs-and-cats-part-1-etiopathogenesis-epidemiology-and-diagnosis
#3
Susan Blades Golubovic, John H Rossmeisl
OBJECTIVE: To review current knowledge of the etiopathogenesis, diagnosis, and consequences of status epilepticus (SE) in veterinary patients. DATA SOURCES: Human and veterinary literature, including clinical and laboratory research and reviews. ETIOPATHOGENESIS: Status epilepticus is a common emergency in dogs and cats, and may be the first manifestation of a seizure disorder. It results from the failure of termination of an isolated seizure...
April 26, 2017: Journal of Veterinary Emergency and Critical Care
https://www.readbyqxmd.com/read/28444954/clinical-presentation-and-outcome-of-children-with-central-diabetes-insipidus-associated-with-a-self-limited-or-transient-pituitary-stalk-thickening-diagnosed-as-infundibuloneurohypophysitis
#4
J Schaefers, M Cools, K De Waele, I Gies, V Beauloye, P Lysy, I Francois, D Beckers, J De Schepper
OBJECTIVE: Despite lymphocytic or autoimmune infundibuloneurohypophysitis (INH) is an increasingly recognized etiology in children with central diabetes insipidus, clinical data on epidemiology (clinical evolution, predisposing factors, complications), diagnosis and management of this entity are limited and mostly based on published case reports. The aim of this study was to gain a broader insight in the natural history of this disease by analyzing the clinical presentation, radiological pituitary stalk changes, associated autoimmunity and hormonal deficiencies in children with CDI and a self-limiting or transient stalk thickening (ST), diagnosed as autoimmune INH, during the last 15 years in four Belgian university hospitals...
April 26, 2017: Clinical Endocrinology
https://www.readbyqxmd.com/read/28444554/relationships-between-environmental-factors-and-participation-in-adults-with-traumatic-brain-injury-stroke-and-spinal-cord-injury-a-cross-sectional-multi-center-study
#5
Alex W K Wong, Sheryl Ng, Jessica Dashner, M Carolyn Baum, Joy Hammel, Susan Magasi, Jin-Shei Lai, Noelle E Carlozzi, David S Tulsky, Ana Miskovic, Arielle Goldsmith, Allen W Heinemann
PURPOSE: To develop and evaluate a model of environmental factors-participation relationships for persons with traumatic brain injury (TBI), stroke, and spinal cord injury (SCI), and test whether this model differed across three diagnostic groups, as well as other demographic and clinical characteristics. METHODS: A cross-sectional observational study included 545 community-dwelling adults with neurological disorders (TBI = 166; stroke = 189; SCI = 190) recruited at three academic medical centers...
April 25, 2017: Quality of Life Research
https://www.readbyqxmd.com/read/28444410/-apnea-test-for-assessment-of-brain-death-under-extracorporeal-life-support
#6
REVIEW
S Winter, H V Groesdonk, M Beiderlinden
BACKGROUND: The fourth edition of the German guideline for the assessment of brain death, published in 2015 by the German Medical Council (Bundesärztekammer), emphasizes the importance of an apnea test. It is also now required under all circumstances of extracorporeal life support. OBJECTIVES: This article is an instruction for the guideline-conforming performance of an apnea test in general and also in cases of extracorporeal life support in different configurations...
April 25, 2017: Medizinische Klinik, Intensivmedizin und Notfallmedizin
https://www.readbyqxmd.com/read/28444227/incidence-and-prognosis-of-patients-with-brain-metastases-at-diagnosis-of-systemic-malignancy-a-population-based-study
#7
Daniel N Cagney, Allison M Martin, Paul J Catalano, Amanda J Redig, Nancy U Lin, Eudocia Q Lee, Patrick Y Wen, Ian F Dunn, Wenya Linda Bi, Stephanie E Weiss, Daphne A Haas-Kogan, Brian M Alexander, Ayal A Aizer
Background: Brain metastases are associated with significant morbidity and mortality. Population-level data describing the incidence and prognosis of patients with brain metastases are lacking. The aim of this study was to characterize the incidence and prognosis of patients with brain metastases at diagnosis of systemic malignancy using recently released data from the Surveillance, Epidemiology, and End Results (SEER) program. Methods: We identified 1,302,166 patients diagnosed with non-hematologic malignancies originating outside of the central nervous system between 2010-2013 and described the incidence proportion and survival of patients with brain metastases...
April 24, 2017: Neuro-oncology
https://www.readbyqxmd.com/read/28443599/a-pott-s-puffy-tumor-associated-with-epidural-cutaneous-fistula-and-epidural-abscess-case-report
#8
Aleksandar Perić, Milanko Milojević, Dražen Ivetić
BACKGROUND: Pott's puffy tumor is characterized by a fluctuate swelling of the frontal region as a result of osteomyelitis of the frontal bone. This inflammatory lesion may propagate endocranially resulting in acute meningitis, epidural abscess, subdural empyema, cavernous sinus trombophlebitis, cerebritis, and frontal lobe abscess of the brain. CASE REPORT: We present an unusual case of a 33-year-old man suffering from the Pott's puffy tumor whose condition was further complicated by a draining epidural-cutaneous fistula and an epidural abscess...
April 13, 2017: Balkan Medical Journal
https://www.readbyqxmd.com/read/28443260/growth-without-growth-hormone-in-combined-pituitary-hormone-deficiency-caused-by-pituitary-stalk-interruption-syndrome
#9
Sang Soo Lee, A-Leum Han, Moon Bae Ahn, Shin Hee Kim, Won Kyoung Cho, Kyoung Soon Cho, So Hyun Park, Min Ho Jung, Byung-Kyu Suh
Growth hormone (GH) is an essential element for normal growth. However, reports of normal growth without GH have been made in patients who have undergone brain surgery for craniopharyngioma. Normal growth without GH can be explained by hyperinsulinemia, hyperprolactinemia, elevated leptin levels, and GH variants; however, its exact mechanism has not been elucidated yet. We diagnosed a female patient aged 13 with combined pituitary hormone deficiency (CPHD) caused by pituitary stalk interruption syndrome (PSIS)...
March 2017: Annals of Pediatric Endocrinology & Metabolism
https://www.readbyqxmd.com/read/28442998/glial-cell-line-derived-neurotrophic-factor-gene-delivery-in-parkinson-s-disease-a-delicate-balance-between-neuroprotection-trophic-effects-and-unwanted-compensatory-mechanisms
#10
REVIEW
Liliane Tenenbaum, Marie Humbert-Claude
Glial cell line-derived neurotrophic factor (GDNF) and Neurturin (NRTN) bind to a receptor complex consisting of a member of the GDNF family receptor (GFR)-α and the Ret tyrosine kinase. Both factors were shown to protect nigro-striatal dopaminergic neurons and reduce motor symptoms when applied terminally in toxin-induced Parkinson's disease (PD) models. However, clinical trials based on intraputaminal GDNF protein administration or recombinant adeno-associated virus (rAAV)-mediated NRTN gene delivery have been disappointing...
2017: Frontiers in Neuroanatomy
https://www.readbyqxmd.com/read/28442358/an-oscillopathic-approach-to-developmental-dyslexia-from-genes-to-speech-processing
#11
REVIEW
Miguel Jiménez-Bravo, Victoria Marrero, Antonio Benítez-Burraco
Developmental dyslexia is a heterogeneous condition entailing problems with reading and spelling. Several genes have been linked or associated to the disease, many of which contribute to the development and function of brain areas important for auditory and phonological processing. Nonetheless, a clear link between genes, the brain, and the symptoms of dyslexia is still pending. The goal of this paper is contributing to bridge this gap. With this aim, we have focused on how the dyslexic brain fails to process speech sounds and reading cues...
April 22, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28441632/emergency-computed-tomography-in-patients-with-first-seizure
#12
Kaisa Kotisaari, Pekka Virtanen, Nina Forss, Daniel Strbian, Filip Scheperjans
PURPOSE: To determine the frequency of emergent imaging findings on head computed tomography (CT) in an adult population of first seizure (FS) patients presenting to an emergency department (ED); and to search for associations between clinical features and emergent imaging findings among these patients. METHODS: For this retrospective registry-based study, adult FS patients presenting to Helsinki University Hospital ED in 2006 were identified based on ICD-10 diagnosis...
April 17, 2017: Seizure: the Journal of the British Epilepsy Association
https://www.readbyqxmd.com/read/28440972/a-comparison-between-the-diagnostic-accuracy-of-frozen-section-and-permanent-section-analyses-in-central-nervous-system
#13
Razie Amraei, Afshin Moradi, Hanieh Zham, Mahsa Ahadi, Maryam Baikpour, Azadeh Rakhshan
Objective: Using diagnostic pathological methods during surgery is a valuable means of determining the appropriate management for patients. Application of Frozen Section in CNS surgeries might face challenges due to friability of brain tissue and its relative inaccessibility. Various studies have evaluated the diagnostic acuity of frozen section compared to gold standard but results have been quite inconsistent. We conducted the present study to evaluate the accuracy of cryostat in diagnosing central nervous system tumors compared to the Gold Standard method...
March 1, 2017: Asian Pacific Journal of Cancer Prevention: APJCP
https://www.readbyqxmd.com/read/28440814/depletion-of-adult-neurogenesis-using-the-chemotherapy-drug-temozolomide-in-mice-induces-behavioural-and-biological-changes-relevant-to-depression
#14
M Egeland, C Guinaudie, A Du Preez, K Musaelyan, P A Zunszain, C Fernandes, C M Pariante, S Thuret
Numerous studies have examined links between postnatal neurogenesis and depression using a range of experimental methods to deplete neurogenesis. The antimitotic drug temozolomide (TMZ) has previously been used successfully as an experimental tool in animals to deplete adult neurogenesis and is used regularly on human patients as a standard chemotherapy for brain cancer. In this study, we wanted to evaluate whether TMZ as a model for chemotherapy treatment could affect parameters related to depression in an animal model...
April 25, 2017: Translational Psychiatry
https://www.readbyqxmd.com/read/28440354/normal-intracranial-bs-bsob-ratio-values-in-the-first-trimester-of-single-gestations-with-live-fetuses-in-a-korean-population
#15
Sung Hee Yang, Hyun Sook An, Jin Soo Lee, Changsoo Kim
AIM: The purpose of this study was to determine the normal length of the brainstem (BS) in Korean fetuses and to evaluatethe usefulness of the routine measurement of BS size in the first trimester of pregnancy for the early detection of spina bifida. MATERIAL AND METHODS: A total of 2,621 normal singleton pregnant Korean women at 10+6 to 13+6 weeks of gestation were selected for this retrospective cross-sectional study. Ultrasonography was used to measure the length of the longest vertical depth diameter of the BS and brainstem-occipital bone (BSOB) in order to obtain the BS to BSOB ratio...
April 22, 2017: Medical Ultrasonography
https://www.readbyqxmd.com/read/28439202/a-rare-complication-of-esophageal-dilatation-brain-abscess
#16
Nagehan Aslan, Esra Sesli, Tuba Koca, Nilgün Şenol, Mustafa Akçam
Brain abscess is an uncommon serious disease, which has been reported as a rare complication of repeated esophageal dilations; however, routine periprocedural antibiotic prophylaxis is not currently recommended. Herein, we present a brain abscess that developed after esophageal dilatation for the treatment of induced caustic esophageal strictures. The clinical presentation is non-specific, the most reported signs are high fever and neurologic findings. Cases have been reported in the literature in adult and pediatric patients...
March 2017: Türk Pediatri Arşivi
https://www.readbyqxmd.com/read/28438881/prevalence-of-congenital-cytomegalovirus-infection-assessed-through-viral-genome-detection-in-dried-blood-spots-in-children-with-autism-spectrum-disorders
#17
Ivan Gentile, Emanuela Zappulo, Maria Pia Riccio, Sandro Binda, Laura Bubba, Laura Pellegrinelli, Domenico Scognamiglio, Francesca Operto, Lucia Margari, Guglielmo Borgia, Carmela Bravaccio
BACKGROUND/AIM: Autism spectrum disorders (ASD) are neurodevelopmental disorders without a definitive etiology in most cases. Environmental factors, such as viral infections, have been linked with anomalies in brain growth, neuronal development, and functional connectivity. Congenital cytomegalovirus (CMV) infection has been associated with the onset of ASD in several case reports. The aim of this study was to evaluate the prevalence of congenital CMV infection in children with ASD and in healthy controls...
May 2017: In Vivo
https://www.readbyqxmd.com/read/28438775/emergency-diagnosis-of-cancer-and-previous-general-practice-consultations-insights-from-linked-patient-survey-data
#18
Gary A Abel, Silvia C Mendonca, Sean McPhail, Yin Zhou, Lucy Elliss-Brookes, Georgios Lyratzopoulos
BACKGROUND: Emergency diagnosis of cancer is common and aetiologically complex. The proportion of emergency presenters who have consulted previously with relevant symptoms is uncertain. AIM: To examine how many patients with cancer, who were diagnosed as emergencies, have had previous primary care consultations with relevant symptoms; and among those, to examine how many had multiple consultations. DESIGN AND SETTING: Secondary analysis of patient survey data from the 2010 English Cancer Patient Experience Survey (CPES), previously linked to population-based data on diagnostic route...
April 24, 2017: British Journal of General Practice: the Journal of the Royal College of General Practitioners
https://www.readbyqxmd.com/read/28438600/neurotrophin-receptors-in-the-pathogenesis-diagnosis-and-therapy-of-neurodegenerative-diseases
#19
REVIEW
Jacopo Meldolesi
In the last few years, exciting properties have emerged regarding the activation, signaling, mechanisms of action, and therapeutic targeting of the two types of neurotrophin receptors: the p75(NTR) with its intracellular and extracellular peptides, the Trks, their precursors and their complexes. This review summarizes these new developments, with particular focus on neurodegenerative diseases. Based on the evolving knowledge, innovative concepts have been formulated regarding the pathogenesis of these diseases, especially the Alzheimer's and two other, the Parkinson's and Huntington's diseases...
April 21, 2017: Pharmacological Research: the Official Journal of the Italian Pharmacological Society
https://www.readbyqxmd.com/read/28438175/a-matched-pair-analysis-comparing-whole-brain-radiotherapy-with-and-without-a-stereotactic-boost-for-intracerebral-control-and-overall-survival-in-patients-with-one-to-three-cerebral-metastases
#20
Dirk Rades, Stefan Janssen, Amira Bajrovic, Mai Trong Khoa, Theo Veninga, Steven E Schild
BACKGROUND: Twelve years ago, a randomized trial demonstrated that a radiosurgery boost added to whole-brain radiotherapy (WBRT) improved intracerebral control (IC) in patients with one to three cerebral metastases. Overall survival (OS) was improved only in the subgroup of patients with a single metastasis but not in the entire cohort. The present study compared both regimens in a different scenario outside a randomized trial. METHODS: A total of 252 patients with one to three cerebral metastases were included...
April 24, 2017: Radiation Oncology
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