keyword
MENU ▼
Read by QxMD icon Read
search

pontin

keyword
https://www.readbyqxmd.com/read/29349602/does-the-interval-from-tumour-surgery-to-radiotherapy-influence-survival-in-paediatric-high-grade-glioma
#1
Amedeo A Azizi, Simon Paur, Alexandra Kaider, Karin Dieckmann, Andreas Peyrl, Monika Chocholous, Thomas Czech, Irene Slavc
PURPOSE: Paediatric high grade glioma (pHGG) are rare. Following maximum safe resection, children >3 years with HGG receive radiotherapy as standard of care. Whether the interval from tumour surgery to radiotherapy (ISRT) influences survival is disputed in adults with glioblastoma, data for children are lacking. This retrospective single-centre analysis investigates a possible impact of ISRT on survival in paediatric patients with HGG. METHODS: Survival was analysed in patients aged 3-19 years with non-pontine HGG...
January 18, 2018: Strahlentherapie und Onkologie: Organ der Deutschen Röntgengesellschaft ... [et Al]
https://www.readbyqxmd.com/read/29343638/commissural-neurons-transgress-the-cns-pns-boundary-in-absence-of-ventricular-zone-derived-netrin-1
#2
Juan Antonio Moreno-Bravo, Sergi Roig Puiggros, Heike Blockus, Chloé Dominici, Pavol Zelina, Patrick Mehlen, Alain Chédotal
During the development of the central nervous system (CNS), only motor axons project into peripheral nerves. Little is known about the cellular and molecular mechanisms that control the development of a boundary at the CNS surface and prevent CNS neuron emigration from the neural tube. It has previously been shown that a subset of spinal cord commissural axons abnormally invades sensory nerves in Ntn1 hypomorphic embryos and Dcc knockouts. However, whether netrin 1 also plays a similar role in the brain is unknown...
January 17, 2018: Development
https://www.readbyqxmd.com/read/29343636/non-cell-autonomous-control-of-precerebellar-neuron-migration-by-slit-and-robo-proteins
#3
Chloé Dominici, Quentin Rappeneau, Pavol Zelina, Stéphane Fouquet, Alain Chédotal
During development, precerebellar neurons migrate tangentially from the dorsal hindbrain to the floor plate. Their axons cross it but their cell bodies stop their ventral migration upon reaching the midline. It has previously been shown that Slit chemorepellents and their receptors, Robo1 and Robo2, might control the migration of precerebellar neurons in a repulsive manner. Here, we have used a conditional knockout strategy in mice to test this hypothesis. We show that the targeted inactivation of the expression of Robo1 and Robo2 receptors in precerebellar neurons does not perturb their migration and that they still stop at the midline...
January 17, 2018: Development
https://www.readbyqxmd.com/read/29334768/angular-and-metric-analysis-of-the-neural-structures-in-the-cerebellopontine-angle
#4
Helbert de Oliveira Manduca Palmiero, Marcos Devanir Silva da Costa, Ricardo Lourenço Caramanti, Feres Eduardo Aparecido Chaddad-Neto
INTRODUCTION: The cerebellopontine angle (CPA) is a subarachnoid space in the lateral aspect of the posterior fossa. In this study, we propose a complementary analysis of the CPA from the cerebellopontine fissure. METHODS: We studied 50 hemi-cerebelli in the laboratory of neuroanatomy and included a description of the CPA anatomy from the cerebellopontine fissure and its relationship with the flocculus and the 5th, 6th, 7th, and 8th cranial nerves (CN) origins. RESULTS: The average distance from the 5th CN to the mid-line (ML) was 19...
January 15, 2018: British Journal of Neurosurgery
https://www.readbyqxmd.com/read/29329908/anatomical-evidence-for-lateral-hypothalamic-innervation-of-the-pontine-a7-catecholamine-cell-group-in-rat
#5
Janean E Holden, Monica A Wagner, Brady L Reeves
Substantial behavioral evidence exists to support the idea that the lateral hypothalamus (LH) makes axonal connection with spinally-projecting noradrenergic neurons of the A7 catecholamine cell group in the pons. Through this putative projection, the LH modulates nociception via α1- and α2-adrenoceptors in the dorsal horn. We used double-label immunocytochemistry to demonstrate that axons from the LH labeled with the anterograde tracer biotinylated dextran amine (BDA) appose tyrosine hydroxylase-immunoreactive (TH-ir) neuron profiles in the A7 area...
January 9, 2018: Neuroscience Letters
https://www.readbyqxmd.com/read/29325939/liponeurocytoma-of-the-cerebello-pontine-angle
#6
Carmela Chiaramonte, Sylvain Rabaste, Timothee Jacquesson, David Meyronet, François Cotton, Emmanuel Jouanneau, Moncef Berhouma
Liponeurocytoma is a very rare tumor classified as grade II (neuronal and mixed neuronal-glial tumors) according to 2016 WHO classification of Tumors of the Central Nervous System. The median age is 50-years-old and the most frequent location is the posterior cranial fossa especially within the cerebellar hemispheres; those arising in the cerebellopontine angle are exceptional. We herein report the clinical, radiological and pathological characteristics of a cerebellopontine angle liponeurocytoma in a 35-year-old woman...
January 8, 2018: World Neurosurgery
https://www.readbyqxmd.com/read/29325920/twenty-four-syndrome-an-untold-presentation-of-pontine-hemorrhage
#7
Ummer Karadan, Ramesh N Supreeth, Robin George Manappallil, Chellenton Jayakrishnan
Pontine hemorrhages are relatively uncommon. Various atypical manifestations of pontine stroke like eight-and-a-half syndrome, fifteen-and-a-half syndrome, and sixteen syndrome have been described in the past. We came across a case of pontine bleed that presented with bilateral facial palsy, bilateral horizontal gaze palsy, and contralateral sensorineural hearing loss accounting to the hitherto not described "twenty-four syndrome" with Horner's syndrome and left hemiparesis.
January 8, 2018: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/29324584/maternal-serum-eye-drops-in-the-management-of-pediatric-persistent-corneal-epithelial-defects-a-case-series
#8
Ashton J Kalhorn, Kirstin L Tawse, Avni A Shah, Jennifer L Jung, Darren G Gregory, Emily A McCourt
PURPOSE: We report our experience with the use of maternally derived serum eye drops as adjunctive treatment in the management of pediatric persistent corneal epithelial defects. METHODS: Five eyes of 4 patients were identified in a retrospective review of pediatric patients with persistent corneal epithelial defects who received maternal serum drops. Diagnoses associated with the defects comprised pontine tegmental cap dysplasia with bilateral cranial nerve V1, V2, V3, and VII palsies; pontine tegmental cap dysplasia with left cranial nerve V1, VII, and VIII palsies; traumatic left cranial nerve II, V1, V2, and VI palsies due to a basilar skull fracture; and Stevens-Johnson syndrome with ocular involvement...
January 10, 2018: Cornea
https://www.readbyqxmd.com/read/29306594/vertebrobasilar-artery-stroke-as-the-heralding-sign-of-systemic-lupus-erythematosus
#9
Reza Mohammadian, Ali Tarighatnia, Mehran Naghibi, Evin Koleini, Nader D Nader
Cerebral ischemia because of vertebrobasilar insufficiency (VBI) rarely presents as an initial sign within the systemic lupus erythematosus (SLE) population, and there are very few case reports supporting this manifestation. This report details 3 different patients with SLE who experienced VBI as an initial manifestation. Patient 1 was a 24-year-old female who developed a bilateral pontine lesion as a consequence of basilar artery stenosis. Patient 2 was a 34-year-old male with an acute ischemic lesion on the right side of his cerebellum and pons because of significant stenosis in the distal segment of the right vertebral artery...
January 3, 2018: Journal of Stroke and Cerebrovascular Diseases: the Official Journal of National Stroke Association
https://www.readbyqxmd.com/read/29298724/brainstem-tau-pathology-in-alzheimer-s-disease-is-characterized-by-increase-of-three-repeat-tau-and-independent-of-amyloid%C3%A2-%C3%AE
#10
Miho Uematsu, Ayako Nakamura, Momoko Ebashi, Katsuiku Hirokawa, Ryosuke Takahashi, Toshiki Uchihara
INTRODUCTION: Alzheimer-type neuropil threads (NTs) and neurofibrillary tangles (NFTs) are comprised of either 4 repeat (4R)-tau, 3 repeat (3R)-tau, or a mixture of both. In the hippocampus, the number of NFTs, and the proportion of 3R tau progressively increases. If this preferential accumulation of 3R tau also occurs in the brainstem, it may be fundamentally related to progression of Alzheimer pathology. METHODS: Midbrain and pontine sections of brainstems from 23 cases (Braak-NFT stages I/II: 8, III/IV: 8, and V/VI: 7) were double immunofluorolabeled for 4R and 3R tau...
January 3, 2018: Acta Neuropathologica Communications
https://www.readbyqxmd.com/read/29290554/a-non-canonical-reticular-limbic-central-auditory-pathway-via-medial-septum-contributes-to-fear-conditioning
#11
Guang-Wei Zhang, Wen-Jian Sun, Brian Zingg, Li Shen, Jufang He, Ying Xiong, Huizhong W Tao, Li I Zhang
In the mammalian brain, auditory information is known to be processed along a central ascending pathway leading to auditory cortex (AC). Whether there exist any major pathways beyond this canonical auditory neuraxis remains unclear. In awake mice, we found that auditory responses in entorhinal cortex (EC) cannot be explained by a previously proposed relay from AC based on response properties. By combining anatomical tracing and optogenetic/pharmacological manipulations, we discovered that EC received auditory input primarily from the medial septum (MS), rather than AC...
December 21, 2017: Neuron
https://www.readbyqxmd.com/read/29289389/tubb3-e410k-syndrome-with-osteoporosis-and-cough-syncope-in-a-patient-previously-diagnosed-with-atypical-moebius-syndrome
#12
Yasuko Nakamura, Hiroshi Matsumoto, Kiyotaka Zaha, Kenji Uematsu, Shigeaki Nonoyama
BACKGROUND: A heterozygous c.1228G > A p.E410K mutation in TUBB3 encoding neuronal-specific β-tubulin isotype 3 causes TUBB3 E410K syndrome, which exhibits a wide range of neurological and endocrinological abnormalities. CASE DESCRIPTION: The patient is a 31-year-old Japanese woman who was diagnosed with atypical Moebius syndrome because of congenital facial weakness and extraocular ophthalmoplegia sparing abduction. She suffered a femoral neck fracture at 23 years of age, and radiological and endocrinological studies revealed osteoporosis because of hypogonadotropic hypogonadism...
December 27, 2017: Brain & Development
https://www.readbyqxmd.com/read/29284598/noninvasive-assessment-of-intracranial-pressure-status-in-idiopathic-intracranial-hypertension-using-displacement-encoding-with-stimulated-echoes-dense-mri-a-prospective-patient-study-with-contemporaneous-csf-pressure-correlation
#13
A M Saindane, D Qiu, J N Oshinski, N J Newman, V Biousse, B B Bruce, J F Holbrook, B M Dale, X Zhong
BACKGROUND AND PURPOSE: Intracranial pressure is estimated invasively by using lumbar puncture with CSF opening pressure measurement. This study evaluated displacement encoding with stimulated echoes (DENSE), an MR imaging technique highly sensitive to brain motion, as a noninvasive means of assessing intracranial pressure status. MATERIALS AND METHODS: Nine patients with suspected elevated intracranial pressure and 9 healthy control subjects were included in this prospective study...
December 28, 2017: AJNR. American Journal of Neuroradiology
https://www.readbyqxmd.com/read/29281072/retrosigmoid-craniotomy-and-petrosal-fissure-dissection-for-transpeduncular-resection-of-a-deep-pontine-arteriovenous-malformation-2-dimensional-operative-video
#14
Rami O Almefty, Robert F Spetzler
No abstract text is available yet for this article.
December 21, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/29280227/neuroimaging-of-dilated-perivascular-spaces-from-benign-and-pathologic-causes-to-mimics
#15
REVIEW
Jeffrey D Rudie, Andreas M Rauschecker, Seyed A Nabavizadeh, Suyash Mohan
Perivascular spaces (PVSs), also known as Virchow-Robin spaces, are pial-lined, fluid-filled structures found in characteristic locations throughout the brain. They can become abnormally enlarged or dilated and in rare cases can cause hydrocephalus. Dilated PVSs can pose a diagnostic dilemma for radiologists because of their varied appearance, sometimes mimicking more serious entities such as cystic neoplasms, including dysembryoplastic neuroepithelial tumor and multinodular and vacuolating neuronal tumor, or cystic infections including toxoplasmosis and neurocysticercosis...
December 27, 2017: Journal of Neuroimaging: Official Journal of the American Society of Neuroimaging
https://www.readbyqxmd.com/read/29278012/pilocytic-astrocytoma-of-the-cerebellopontine-angle-mimicking-vestibular-schwannoma-report-of-a-rare-entity
#16
Gautam Dutta, Daljit Singh, Hukum Singh, Deepashu Sachdeva, Vikas Kumar, Ashutosh Chaturvedi
We present a rare case of a 55-yr old patient of pilocytic astrocytoma of the cerebello-pontine angle mimicking a vestibular schwannoma. The tumor protruded into the porus acusticus causing enlargement of the internal auditory meatus, which is quite an unusual feature of glial tumours.
December 26, 2017: British Journal of Neurosurgery
https://www.readbyqxmd.com/read/29274747/more-highly-myelinated-white-matter-tracts-are-associated-with-faster-processing-speed-in-healthy-adults
#17
Sidhant Chopra, Marnie Shaw, Thomas Shaw, Perminder S Sachdev, Kaarin J Anstey, Nicolas Cherbuin
The objective of this study was to investigate whether the estimated myelin content of white matter tracts is predictive of cognitive processing speed and whether such associations are modulated by age. Associations between estimated myelin content and processing speed was assessed in 570 community-living individuals (277 middle-age, 293 older-age). Myelin content was estimated using the mean T1w/T2w magnetic resonance ratio, in six white matter tracts (anterior corona radiata, superior corona radiata, pontine crossing tract, anterior limb of the internal capsule, genu of the corpus callosum, and splenium of the corpus callosum)...
December 21, 2017: NeuroImage
https://www.readbyqxmd.com/read/29262389/-pontine-hemorrhage-suspected-due-to-dural-arteriovenous-fistula-at-the-craniocervical-junction-a-case-report
#18
Shou Nishii, Tomohiro Araki, Kazuhide Hamada, Yotaro Kitano, Yoichi Miura, Kenji Kanamaru
Dural arteriovenous fistulas occurring at the craniocervical junction(CCJd-AVF)are uncommon; however, they demonstrate a wide range of clinical presentations. We describe the case of a patient with pontine hemorrhage suspected due to CCJd-AVF. A 68-year-old man presented to our hospital with a sudden onset of left hemiparesis. Cranial computed tomography(CT)revealed pontine and subarachnoid hemorrhage. Magnetic resonance imaging, as well as MR, CT, and left vertebral angiograms were performed and showed a CCJd-AVF in addition to a varix coincident with the hematoma cavities...
December 2017: No Shinkei Geka. Neurological Surgery
https://www.readbyqxmd.com/read/29258560/a-clinical-series-using-intensive-neurorehabilitation-to-promote-functional-motor-and-cognitive-skills-in-three-girls-with-cask-mutation
#19
Stephanie C DeLuca, Dory A Wallace, Mary Rebekah Trucks, Konark Mukherjee
OBJECTIVES: Children with microcephaly face lifelong psychomotor, cognitive, and communications skills disabilities. Etiology of microcephaly is heterogeneous but presentation often includes seizures, hypotonia, ataxia, stereotypic movements, attention deficits, excitability, cognitive delays, and poor communication skills. Molecular diagnostics have outpaced available interventions and most children receive generic physical, speech, and occupational therapies with little attention to the efficacy of such treatments...
December 19, 2017: BMC Research Notes
https://www.readbyqxmd.com/read/29244097/reply-a-case-of-chronic-lymphocytic-inflammation-with-pontine-perivascular-enhancement-responsive-to-steroids-challenging-the-new-diagnostic-criteria
#20
W Oliver Tobin, Yong Guo, Karl N Krecke, B Mark Keegan
No abstract text is available yet for this article.
December 13, 2017: Brain: a Journal of Neurology
keyword
keyword
52710
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"