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https://www.readbyqxmd.com/read/29141247/connections-of-anterior-thalamic-visual-centers-in-the-leopard-frog-rana-pipiens
#1
Eric W Recktenwald, Elizabeth A Dudkin, Laura K Skorina, William M Saidel, Edward R Gruberg
The amphibian retina projects to two discrete regions of neuropil in the anterior thalamus: the neuropil of Bellonci and the corpus geniculatum. These retinorecipient areas are encompassed within a larger zone of surrounding neuropil we call the NCZ (for neuropil of Bellonci/corpus geniculatum zone). The NCZ is characterized electrophysiologically by a distinctive tonic oscillatory response to blue light; it appears to be a visual module involved in processing the stationary visual environment. Using horseradish peroxidase (HRP), we mapped the connections of the NCZ...
November 16, 2017: Brain, Behavior and Evolution
https://www.readbyqxmd.com/read/29130952/efferent-axonal-projections-of-the-habenular-complex-in-the-fire-bellied-toad-bombina-orientalis
#2
Frédéric Laberge, Allison Smith
The habenular complex and its associated axonal pathways are often thought of as phylogenetically conserved features of the brain among vertebrates despite the fact that detailed studies of this brain region are limited to a few species. Here, the gross morphology and axonal projection pattern of the habenular complex of an anuran amphibian, the fire-bellied toad Bombina orientalis, was studied to allow comparison with the situation in other vertebrates. Axonal pathways were traced using biocytin applications in dissected brain preparations...
November 2, 2017: Brain, Behavior and Evolution
https://www.readbyqxmd.com/read/29127655/the-endoscopic-endonasal-approach-is-not-superior-to-the-microscopic-transcranial-approach-for-anterior-skull-base-meningiomas-a-meta-analysis
#3
Ivo S Muskens, Vanessa Briceno, Tom L Ouwehand, Joseph P Castlen, William B Gormley, Linda S Aglio, Amir H Zamanipoor Najafabadi, Wouter R van Furth, Timothy R Smith, Rania A Mekary, Marike L D Broekman
OBJECT: In the past decade, the endonasal transsphenoidal approach (eTSA) has become an alternative to the microsurgical transcranial approach (mTCA) for tuberculum sellae meningiomas (TSMs) and olfactory groove meningiomas (OGMs). The aim of this meta-analysis was to evaluate which approach offered the best surgical outcomes. METHODS: A systematic review of the literature from 2004 and meta-analysis were conducted in accordance with the PRISMA guidelines. Pooled incidence was calculated for gross total resection (GTR), visual improvement, cerebrospinal fluid (CSF) leak, intraoperative arterial injury, and mortality, comparing eTSA and mTCA, with p-interaction values...
November 10, 2017: Acta Neurochirurgica
https://www.readbyqxmd.com/read/29125820/rafting-technique-without-bone-grafting-in-reverse-hill-sachs-lesions
#4
Meriç Çırpar, Birhan Oktaş, Bülent Dağlar
In this article, we report a case of bilateral posterior shoulder instability, having reverse Hill-Sachs lesions of 25 to 50% of the articular surface on the right side, and of 50% on the left side. The defects were anatomically reconstructed after tuberculum minus osteotomy by elevation of the articular surface and buttressing with raft screws without graft usage. Early rehabilitation with pendulum shoulder exercises was started at third postoperative day. At postoperative sixth week, patient had full range of motion without instability and pain...
December 2017: Eklem Hastalıkları Ve Cerrahisi, Joint Diseases & related Surgery
https://www.readbyqxmd.com/read/29097336/a-case-of-subarachnoid-hemorrhage-caused-by-tuberculous-aneurysm
#5
Wei Liu, Chuanfeng Li, Xianming Liu, Zhiming Xu, Lu Kong
In this paper, we report a case of intracranial tuberculum with adjacent intracerebral inflammatory aneurysm, and include a brief discussion of the developmental mechanism of these pathologies. A 28-year-old man presented with sudden onset of severe headache. He was diagnosed with h pulmonary tuberculosis 8 year ago, and had been treated with anti-tuberculosis medications for 6 months. Head computed tomography (CT) showed a small hematoma in the left Sylvian fissure with subarachnoid hemorrhage. Cerebral digital subtraction angiograph (DSA) was performed and no aneurysm was found...
October 30, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/29049148/skull-base-neuroendoscopic-training-model-using-a-fibrous-injectable-tumor-polymer-and-the-nico-myriad
#6
Filippo Gagliardi, Anthony M Chau, Pietro Mortini, Anthony J Caputy, Cristian Gragnaniello
The Myriad is an innovative, high precision tool for tumor resection, designed to work within narrow endoscopic corridors. Due to its application in technically demanding situations, the learning curve associated with its use might be extremely challenging and time-consuming.The authors describe the application of an already validated training model, the skull base injectable tumor model (ITM), to allow trainees to practice with the use of the Myriad during endoscopic skull base procedures.A formalin embalmed cadaveric head was used for technical assessment...
October 18, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/29040718/the-mcconnell-s-capsular-arteries-and-their-relevance-in-endoscopic-endonasal-approach-to-the-sellar-region
#7
Cristian Ferrareze Nunes, André Beer-Furlan, Francesco Doglietto, Ricardo Luis Carrau, Daniel Monte-Serrat Prevedello
BACKGROUND: The McConnell's capsular arteries (MCCA) were first described in 1953. They consist of medial branches of the cavernous internal carotid artery (ICA) and are divided in anterior and inferior capsular arteries. OBJECTIVE: To highlight the anatomy of the MCCA and its importance in the surgical treatment of tuberculum sellae and planum sphenoidale tumors through an endoscopic endonasal approach. METHODS: Ten cadaveric specimens fixed in formalin and perfused with colored silicone were dissected...
October 13, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/29040698/clinical-outcome-after-endoscopic-endonasal-resection-of-tuberculum-sella-meningiomas
#8
Khaled Elshazly, Varun R Kshettry, Christopher J Farrell, Gurston Nyquist, Marc Rosen, James J Evans
BACKGROUND: In select cases, the endoscopic endonasal approach (EEA) has distinct advantages for resection of tuberculum sella meningiomas (TSM). OBJECTIVE: To report the extent of resection (EOR), complication rates, and outcomes in a large series of TSM treated by the EEA. METHODS: Twenty-five consecutive TSM cases treated by EEA from 2008 to 2016 were retrospectively reviewed. Patient history, imaging, volumetric EOR, complications, and outcomes are presented...
October 10, 2017: Operative Neurosurgery (Hagerstown, Md.)
https://www.readbyqxmd.com/read/29026671/bilateral-caudate-nucleus-infarcts-a-case-report-of-a-rare-complication-following-endoscopic-resection-of-a-tuberculum-sellae-meningioma
#9
Joel Bierer, Amparo Wolf, Donald H Lee, Brian W Rotenberg, Neil Duggal
BACKGROUND: We present a rare complication of bilateral caudate infarcts and necrosed nasoseptal flaps after endoscopic transsphenoidal resection of tuberculum sellae meningioma. This case highlights the importance of early and accurate diagnosis and treatment of a postoperative cerebrospinal fluid (CSF) leak and associated bacterial meningitis, and reviews any existing guidelines regarding its management. CASE DESCRIPTION: A 54-year-old otherwise healthy man presented with progressive bitemporal hemianopsia...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/29019661/venlafaxine-in-embryos-stimulates-neurogenesis-and-disrupts-larval-behavior-in-zebrafish
#10
William A Thompson, Victoria I Arnold, Mathilakath M Vijayan
Venlafaxine, a widely prescribed antidepressant, is a selective serotonin and norepinephrine reuptake inhibitor in humans, and this drug is prevalent in municipal wastewater effluents. While studies have shown that this drug affects juvenile fish behavior, little is known about the developmental impact on nontarget aquatic animals. We tested the hypothesis that venlafaxine deposition in the egg, mimicking maternal transfer of this antidepressant, disrupts developmental programming using zebrafish (Danio rerio) as a model...
November 7, 2017: Environmental Science & Technology
https://www.readbyqxmd.com/read/29017976/outcomes-after-transcranial-and-endoscopic-endonasal-approach-for-tuberculum-meningiomas-a-retrospective-comparison
#11
Sang Woo Song, Yong Hwy Kim, Jin Wook Kim, Chul-Kee Park, Jung Eun Kim, Dong Gyu Kim, Young-Cho Koh, Hee-Won Jung
BACKGROUND: Degree of resection and visual outcome are the main concerns in the surgical resection of tuberculum sellae meningioma (TSM). In addition to the transcranial approach (TCA), the endoscopic endonasal approach (EEA) has been used increasingly. However, the controversy regarding the optimal surgical approach is not clearly resolved. METHODS: We compared the surgical outcomes of each approach for TSMs from 44 patients receiving EEA and 40 patients receiving TCA in 2 institutions between 2004 and 2015...
October 7, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28992072/attention-and-motivated-response-to-simulated-male-advertisement-call-activates-forebrain-dopaminergic-and-social-decision-making-network-nuclei-in-female-midshipman-fish
#12
Paul M Forlano, Roshney R Licorish, Zachary N Ghahramani, Miky Timothy, Melissa Ferrari, William C Palmer, Joseph A Sisneros
Little is known regarding the coordination of audition with decision-making and subsequent motor responses that initiate social behavior including mate localization during courtship. Using the midshipman fish model, we tested the hypothesis that the time spent by females attending and responding to the advertisement call is correlated with the activation of a specific subset of catecholaminergic (CA) and social decision-making network (SDM) nuclei underlying auditory- driven sexual motivation. In addition, we quantified the relationship of neural activation between CA and SDM nuclei in all responders with the goal of providing a map of functional connectivity of the circuitry underlying a motivated state responsive to acoustic cues during mate localization...
July 20, 2017: Integrative and Comparative Biology
https://www.readbyqxmd.com/read/28986226/internal-carotid-artery-and-its-relationship-with-structures-in-sellar-region-anatomy-study-and-its-clinical-applications
#13
Yishui Zhang, Wen Yang
BACKGROUND: Complications of the ICA in surgeries are rare but severe. This study aims to locate the ICA with 5 stationary bony structures in the sellar region: the anterior clinoid process (ACP), the tuberculum sellae, the bottom of the hypophyseal fossa, the posterior edge of the hypophyseal fossa and the post clinoid process and do measurements to determine their anatomic relationship with the ICA. METHODS: After multiple planar reconstructions on computer tomographic angiography images of 120 ICA in 60 individuals, we defined the 5 bony structures as 5 origins in horizontal, sagittal and vertical planes with the 3D coordinate system and got the cross-sections of bilateral ICA on the coronal plane passing through each origin...
October 3, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28967318/extended-endoscopic-endonasal-approach-for-resection-of-tuberculum-sellae-meningioma
#14
Gabriel Zada, Vance L Fredrickson, Bozena B Wrobel
Meningiomas are the most prevalent primary intracranial tumor, with 3%-10% arising from the tuberculum sellae. Optimal management consists of total microsurgical resection with preservation of surrounding structures. The authors present a 64-year-old woman with progressive bilateral vision loss, including visual acuity deficits and bitemporal hemianopsia. MRI revealed a 2-cm tuberculum sellae meningioma causing optic apparatus compression. An extended endoscopic endonasal transtuberculum approach was utilized for gross-total resection, including microdissection of tumor from the optic chiasm and infundibulum...
October 2017: Neurosurgical Focus
https://www.readbyqxmd.com/read/28967307/introduction-surgical-management-of-skull-base-meningiomas
#15
Gabriel Zada, Mustafa K Başkaya, Mitesh V Shah
Meningiomas represent the most common primary intracranial neoplasm treated by neurosurgeons. Although multimodal treatment of meningiomas includes surgery, radiation-based treatments, and occasionally medical therapy, surgery remains the mainstay of treatment for most symptomatic meningiomas. Because of the intricate relationship of the dura mater and arachnoid mater with the central nervous system and cranial nerves, meningiomas can arise anywhere along the skull base or convexities, and occasionally even within the ventricular system, thereby mandating a catalog of surgical approaches that neurosurgeons may employ to individualize treatment for patients...
October 2017: Neurosurgical Focus
https://www.readbyqxmd.com/read/28967305/orbitozygomatic-craniotomy-and-trans-sylvian-approach-for-resection-of-a-tuberculum-sella-meningioma-with-extension-to-the-posterior-fossa
#16
Georgios Klironomos, Amir R Dehdashti
Tuberculum sella meningiomas can be approached through lateral approaches including pterional/orbitozygomatic craniotomies, frontobasal craniotomy, or through expanded endoscopic transsphenoidal approaches. The authors present the case of a 60-year-old male who presented with bitemporal hemianopia and significant right-side visual acuity compromise due to a large tuberculum sella meningioma. The tumor had an important extension to the posterior fossa. A right orbitozygomatic trans-sylvian approach was deemed most suitable to tackle the posterior extension of the tumor...
October 2017: Neurosurgical Focus
https://www.readbyqxmd.com/read/28959875/postoperative-cerebrospinal-fluid-rhinorrhea-in-puerperal-women-following-transcranial-resection-of-tuberculum-sella-meningiomas
#17
Ben Shofty, Lior Gonen, Sarit Avraham, Avraham Abergel, Daniel Umansky, Nevo Margalit
No abstract text is available yet for this article.
September 28, 2017: Journal of Neurosurgical Sciences
https://www.readbyqxmd.com/read/28958924/moyamoya-disease-associated-with-tuberculum-sellae-meningioma-and-cavernous-sinus-hemangioma-case-report
#18
Feng Xu, Hailiang Tang, Ji Xiong, Xiaoxia Liu
BACKGROUND: Primary moyamoya disease associated with skull base tumors has been rarely reported in the literature. Surgical treatment can be complicated due to the compensatory collateral circulation through meningeal and leptomeningeal anastomosis. The standard frontotemporal craniotomy may interrupt critical transdural anastomoses. CASE DESCRIPTION: We reported a case of primary moyamoya disease coexisting with tuberculum sellae meningioma and left cavernous sinus hemangioma...
September 25, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28951179/clinical-outcomes-with-transcranial-resection-of-tuberculum-sellae-meningioma
#19
Michael Karsy, Amol Raheja, Ilyas Eli, Jian Guan, William T Couldwell
OBJECTIVE: The tuberculum sellae is a relatively common location for meningiomas. We assessed our experience with the use of the transcranial resection, which, while criticized for its more invasive nature compared with endonasal approaches, may be the ideal approach in selected patients with tuberculum sellae meningiomas (TSMs). METHODS: We retrospectively reviewed the charts of patients with TSMs that were treated by frontotemporal or bifrontal open cranial resection...
September 22, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28940616/skull-of-the-grey-heron-ardea-cinerea-detailed-investigation-of-the-orbital-region
#20
S V Bavdek, Z Golob, F Janžekovič, C S Rutland, V Kubale
The skull of the grey heron (Ardea cinerea) was examined with an emphasis on describing the orbital region. In the young (circa sixteen to seventeen days old) heron, the frontal bone (os frontale) and nasal bone (os nasale) comprised separate paired bones, connected by sutures (sutura interfrontalis, sutura internasalis and sutura frontonasalis plana). In adult animals, the relationship between these bones was different: the left and right frontal bone and the left and right nasal bone had grown together, and the frontal bone and nasal bone had fused into a common frontonasal bone (os frontonasale)...
September 20, 2017: Anatomia, Histologia, Embryologia
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