keyword
MENU ▼
Read by QxMD icon Read
search

Dura

keyword
https://www.readbyqxmd.com/read/28733199/robust-highly-customizable-and-economical-multi-channel-electrode-for-chronic-multi-unit-recording-in-behaving-animals
#1
Yukina Tateyama, Kei Oyama, Masaru Shiraishi, Toshio Iijima, Ken-Ichiro Tsutsui
Multi-unit recording has been one of the most widely used techniques to investigate the correlation between multiple neuronal activities and behavior. However, a common problem of currently used multi-channel electrodes is their physical weakness. In this study, we developed a novel multi-channel electrode with sufficient physical strength to penetrate a thickened dura mater. This electrode consists of low-cost materials and is easily fabricated, and it enables recording without removing dura mater, thereby reducing the risk of inflammation, infection, or brain herniation...
July 18, 2017: Neuroscience Research
https://www.readbyqxmd.com/read/28726587/repair-of-tympanic-membrane-perforations-with-customized-bioprinted-ear-grafts-using-chinchilla-models
#2
Che-Ying Kuo, Emmanuel Wilson, Andrew Fuson, Nidhi Gandhi, Reza Monfaredi, Audrey Jenkins, Maria Romero, Marco Santoro, John P Fisher, Kevin Cleary, Brian Reilly
The goal of this work is to develop an innovative method that combines bioprinting and endoscopic imaging to repair tympanic membrane perforations (TMPs). TMPs are a serious health issue because they can lead to both conductive hearing loss and repeated otitis media. TMPs occur in 3 to 5% of cases after ear tube placement as well as in cases of acute otitis media (the second most common infection in pediatrics), chronic otitis media with or without cholesteatoma, or as a result of barotrauma to the ear. About 55,000 tympanoplasties, the surgery performed to reconstruct TMPs, are performed every year and the commonly used cartilage grafting technique has a success rate between 43% to 100%...
July 20, 2017: Tissue Engineering. Part A
https://www.readbyqxmd.com/read/28725032/remora-cranial-vein-morphology-and-its-functional-implications-for-attachment
#3
Brooke E Flammang
Remora fishes adhere to, and maintain long-term, reversible attachment with, surfaces of varying roughness and compliance under wetted high-shear conditions using an adhesive disc that evolved from the dorsal fin spines typical of other fishes. Evolution of this complex hierarchical structure required extensive reorganization of the skull and fin spines, but the functional role of the soft tissues of the disc are poorly understood. Here I show that remora cranial veins are highly-modified in comparison to those of other vertebrates; they are transposed anteriorly and enlarged, and lie directly ventral to the disc on the dorsum of the cranium...
July 19, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28724507/comparison-of-endocranial-morphology-according-to-age-in-one-piece-fronto-orbital-advancement-using-a-distraction-in-craniosynostotic-plagiocephaly
#4
Woo Shik Jeong, Ersin Altun, Jong Woo Choi, Young Shin Rah
The capacity for cranial remodelling is known to be better at younger ages. The timing of cranioplasty could affect the axis of the skull base. We investigated whether age at the time of distraction is related to the outcome of endocranial morphology correction. In this retrospective study, we investigated the surgical outcome of 14 patients with unilateral craniosynostotic plagiocephaly who underwent one-piece fronto-orbital advancement without bandeau by using a distraction technique between April 2005 and December 2015...
June 17, 2017: Journal of Cranio-maxillo-facial Surgery
https://www.readbyqxmd.com/read/28723776/a-case-of-idiopathic-hypertrophic-pachymeningitis-presenting-with-chronic-headache-and-multiple-cranial-nerve-palsies-a-case-report
#5
Yuanyuan Huang, Jun Chen, Li Gui
RATIONALE: Idiopathic hypertrophic pachymeningitis (IHP) is a rare condition, characterized by a chronic fibrosing inflammatory process usually involving either the intracranial or spinal dura mater, but rarely both. Here, we report a rare case of IHP affecting both the intracranial and spinal dura mater. We also discussed the diagnosis, management, and outcome of IHP. PATIENT CONCERNS: We reviewed the case of a 60-year-old woman presenting with chronic headache, multiple cranial nerve palsies and gait disturbance...
July 2017: Medicine (Baltimore)
https://www.readbyqxmd.com/read/28719455/microscope-and-fiberscope-assisted-subarachnoid-subarachnoid-s-s-bypass-a-novel-surgical-technique-to-reestablish-cerebrospinal-fluid-flow-in-treating-dorsal-spinal-arachnoid-webs-diagnosed-by-cine-mri
#6
Yasushi Fujiwara, Hideki Manabe, Bunichiro Izumi, Takayuki Shima, Nobuo Adachi
A "dorsal spinal arachnoid web" is the thickened arachnoid band on the surface of the spinal cord which disturbs the cerebrospinal fluid (CSF) flow, known as a rare cause of thoracic myelopathy. The ideal treatment is controversial because of the risk of readhesion after simple resection of the web. A subarachnoid-subarachnoid bypass is a method to reestablish CSF flow through a silicon tube between the cranial and caudal subarachnoid space. This method is reported to be useful for traumatic syringomyelia, adhesive arachnoiditis, etc...
July 17, 2017: Clinical Spine Surgery
https://www.readbyqxmd.com/read/28718255/dural-tears-in-patients-with-depressed-skull-fractures
#7
Gul Muhammad, Ahsan Aurangzeb, Shahbaz Ali Khan, Iqbal Hussain, Sudhair Alam, Ehtisham Ahmed Khan Afridi, Baynazir Khan, Sajid Nazir Bhatti
BACKGROUND: The presence of skull fracture in patients sustaining traumatic brain injury is an important risk factor for intracranial lesions. Assessment of integrity of dura in depressed skull fracture is of paramount importance because if dura is torn, lacerated brain matter may be present in the wound which needs proper debridement followed by water tight dural closure to prevent meningitis, cerebral abscess, and pseudomeningocoele formation. The objective of this study was to determine the frequency of dural tear in patients with depressed skull fractures...
April 2017: Journal of Ayub Medical College, Abbottabad: JAMC
https://www.readbyqxmd.com/read/28713632/radiographic-assessment-of-the-presigmoid-retrolabyrinthine-approach
#8
Andrew K Wong, Melissa M Stamates, Anita P Bhansali, Michael Shinners, Ricky H Wong
BACKGROUND: Lesions of the petroclival fissure are difficult to access surgically. Both retrosigmoid and presigmoid retrolabyrinthine approaches have been described to successfully treat these complex tumors. The retrosigmoid approach offers quick and familiar access, whereas the presigmoid retrolabyrinthine approach reduces the operative distance and the need for cerebellar retraction. The presigmoid retrolabyrinthine approach, however, is constrained by anatomical limits that can be subject to patient variation...
2017: Surgical Neurology International
https://www.readbyqxmd.com/read/28711538/cerebral-venous-sinus-thrombosis-secondary-to-idiopathic-hypertrophic-cranial-pachymeningitis-a-case-report-and-review-of-the-literature
#9
Kaiyuan Huang, Qingsheng Xu, Yuankun Ma, Renya Zhan, Jian Shen, Jianwei Pan
BACKGOUND AND IMPORTANCE: Idiopathic hypertrophic cranial pachymeningitis (IHCP) is a rare fibrosing inflammatory process involving the dura mater. Currently, there is no consensus on the treatments for IHCP, and the usefulness of immunosuppressive agents as a first-line option remains controversial. Cerebral venous sinus occlusion (CVSO) and cerebral venous sinus thrombosis (CVST) secondary to IHCP, which may cause progressive intracranial hypertension and venous obstructive parenchymal lesions, make the diagnosis and treatment of IHCP more complicated...
July 12, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28711532/an-intraoperative-look-at-a-residual-recurrent-tentorial-dural-arteriovenous-fistula
#10
Bradley A Gross, Andrew F Ducruet, Brian T Jankowitz, Paul A Gardner
BACKGROUND: Dural arteriovenous fistulas (dAVF)s are often treated via transarterial or transvenous embolization. Incomplete penetration of the draining vein/occult residual will often become apparent on follow-up angiography, requiring repeat embolization, or at times, surgical resection. CASE DESCRIPTION: A 41 year old female presented with cerebellar hemorrhage from a tentorial dAVF treated with transvenous coil embolization. Follow-up angiography disclosed a residual/recurrent fistula treated with transvenous Onyx embolization...
July 12, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28705701/piezosurgery-in-modified-pterional-orbital-decompression-surgery-in-graves-disease
#11
Juergen Grauvogel, Christian Scheiwe, Waseem Masalha, Nadja Jarc, Tanja Grauvogel, Andreas Beringer
OBJECTIVE: Piezosurgery utilizes microvibrations to selectively cut bone, preserving the adjacent soft tissue. The present study evaluated the use of piezosurgery for bone removal in orbital decompression surgery in Graves' disease via a modified pterional approach. METHODS: A piezosurgical device (Piezosurgery medical®) was used in 14 patients (20 orbits) with Graves' disease who underwent orbital decompression surgery in additional to drills and rongeurs for bone removal of the lateral orbital wall and orbital roof...
July 10, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28701072/a-novel-biomimetic-composite-substitute-of-plla-gelatin-nanofiber-membrane-for-dura-repairing
#12
Kunxue Deng, Yaya Yang, Yiquan Ke, Chengyi Luo, Man Liu, Yuting Deng, Quan Tian, Yuyu Yuan, Tun Yuan, Tao Xu
OBJECTIVE: Biomimetic design will significantly improve growth and regeneration of dural cells and tissue for better repairing effects and fewer complications in repairing the native dura. This study designed a novel composite, biomimetic substitute based on the characteristics of native dura extracellular matrix. METHODS AND RESULTS: This substitute is expected to rapidly induce cell adhesion, migration, and fast regeneration of neotissue. The material characteristics (contact angle, surface charge, and zeta potential were evaluated), in vitro biological characteristics (cell stretch, connections between cells, cell proliferation) and in vivo tissue regeneration capability of this substitute were evaluated, compared to those of collagen dura substitute, the mostly used dura substitute...
July 12, 2017: Neurological Research
https://www.readbyqxmd.com/read/28700539/propranolol-treatment-prevents-chronic-central-sensitization-induced-by-repeated-dural-stimulation
#13
Nelly Boyer, Jérémy Signoret-Genest, Alain Artola, Radhouane Dallel, Lénaïc Monconduit
Migraine is currently conceptualized as a chronic disease with episodic manifestations. In some patients, migraine attack frequency increases, leading to chronic migraine. Daily preventive therapy is initiated to decrease attack frequency. Propranolol, a first-line medication for migraine prophylaxis, reduces attack frequency in nearly 50% of patients receiving it. However, the mechanisms of its antimigraine action are unclear. We examined the effect of daily propranolol treatment (10 mg.kg per os, 8 days) in a rat model of recurrent activation of dural nociceptors (repeated infusion of an inflammatory soup (IS) on the dura through a cannula every 2-3 days)...
July 8, 2017: Pain
https://www.readbyqxmd.com/read/28700536/fully-implantable-battery-free-wireless-optoelectronic-devices-for-spinal-optogenetics
#14
Vijay K Samineni, Jangyeol Yoon, Kaitlyn E Crawford, Yu Ra Jeong, Kajanna C McKenzie, Gunchul Shin, Zhaoqian Xie, Saranya S Sundaram, Yuhang Li, Min Young Yang, Jeonghyun Kim, Di Wu, Yeguang Xue, Xue Feng, Yonggang Huang, Aaron D Mickle, Anthony Banks, Jeong Sook Ha, Judith P Golden, John A Rogers, Robert W Gereau
The advent of optogenetic tools has allowed unprecedented insights into the organization of neuronal networks. Although recently developed technologies have enabled implementation of optogenetics for studies of brain function in freely moving, untethered animals, wireless powering and device durability pose challenges in studies of spinal cord circuits where dynamic, multidimensional motions against hard and soft surrounding tissues can lead to device degradation. We demonstrate here a fully implantable optoelectronic device powered by near-field wireless communication (NFC) technology, with a thin and flexible open-architecture that provides excellent mechanical durability, robust sealing against biofluid penetration and fidelity in wireless activation, thereby allowing for long-term optical stimulation of the spinal cord without constraint on the natural behaviors of the animals...
June 8, 2017: Pain
https://www.readbyqxmd.com/read/28695607/visualization-of-the-tentorial-innervation-of-human-dura-mater
#15
Shin-Hyo Lee, Kang-Jae Shin, Ki-Seok Koh, Wu-Chul Song
Posterior projections of the ophthalmic division of the trigeminal nerve (the ophthalmic nerve) are distributed in the tentorium cerebelli as recurrent meningeal branches. We investigated the morphological tentorial distribution of the ophthalmic nerve. Fifty-two sides of the tentorium cerebelli and adjacent dura mater obtained from 29 human specimens were stained using Sihler's method to examine the nerve fibres in the dural sheets. The innervation patterns of the tentorium cerebelli were classified into the following four types according to their distributions: Type 1, where nerve fibres projected to both the straight and transverse sinuses; Type 2, where nerve fibres projected only to the transverse sinus and lateral convexity; Type 3, where nerve fibres projected medially only to the straight sinus and the posterior part of the falx cerebri; and Type 4, where the nerve fibres terminated within the tentorium cerebelli...
July 10, 2017: Journal of Anatomy
https://www.readbyqxmd.com/read/28692498/distraction-of-fronto-orbital-segment-as-a-nonvascularized-bone-graft-in-craniosynostotic-patients
#16
Gökhan Tunçbilek, Ersoy Konaş, Mert Çaliş, Galip Gencay, Burçak Bilginer
Fronto-orbital advancement using distraction techniques involves the dura left attached to the osteotomized bone segment to avoid dead space formation and dural injury, whereas it is impossible to reshape the supraorbital bar and the frontal bone complex, when necessary. Our approach combines advantageous parts of conventional and distraction osteogenesis techniques as remodel and distract the supraorbital bar and frontal bone complex as a free bone graft. Twenty-seven patients either being syndromic and nonsyndromic craniosynostosis, with at least 3 years of follow-up were reviewed in this study...
July 7, 2017: Journal of Craniofacial Surgery
https://www.readbyqxmd.com/read/28691240/superdurable-coating-fabricated-from-a-double-sided-tape-with-long-term-zero-bacterial-adhesion
#17
Wei Wang, Yang Lu, Hui Zhu, Zhiqiang Cao
There is no coating technology currently available to prevent the notorious biofilm formation issue. Here, a potential solution to fully address this tough issue is reported by developing a super-antifouling coating. The use of zwitterionic hydrogel (a double-sided tape) and commercial superglue is combined and a durable and ultrarobust antifouling zwitterionic (DURA-Z) coating is created that can be easily and universally applied on common substrates. Commercial superglue mostly for binding hydrophobic materials is used to strongly immobilize the superhydrophilic DURA-Z coating through interpenetration...
July 10, 2017: Advanced Materials
https://www.readbyqxmd.com/read/28690768/endoscopic-recommendations-for-colorectal-cancer-screening-and-surveillance-in-patients-with-inflammatory-bowel-disease-review-of-general-recommendations
#18
REVIEW
Jose María Huguet, Patricia Suárez, Luis Ferrer-Barceló, Lucía Ruiz, Ana Monzó, Ana Belén Durá, Javier Sempere
Screening for colorectal cancer (CRC) in patients with inflammatory bowel disease (IBD) is recommended by all scientific societies. However, there are differences in the recommendations they make regarding screening and surveillance. We address a series of questions that come up in the daily clinical practice of a physician. The first two questions that are raised are: (1) Who should be offered screening for CRC? and (2) When should the first colonoscopy be performed? The next step is to decide who should undergo endoscopic surveillance and at what intervals they should be performed...
June 16, 2017: World Journal of Gastrointestinal Endoscopy
https://www.readbyqxmd.com/read/28688405/ion-ion-coincidence-imaging-at-high-event-rate-using-an-in-vacuum-pixel-detector
#19
Jingming Long, Federico J Furch, Judith Durá, Anton S Tremsin, John Vallerga, Claus Peter Schulz, Arnaud Rouzée, Marc J J Vrakking
A new ion-ion coincidence imaging spectrometer based on a pixelated complementary metal-oxide-semiconductor detector has been developed for the investigation of molecular ionization and fragmentation processes in strong laser fields. Used as a part of a velocity map imaging spectrometer, the detection system is comprised of a set of microchannel plates and a Timepix detector. A fast time-to-digital converter (TDC) is used to enhance the ion time-of-flight resolution by correlating timestamps registered separately by the Timepix detector and the TDC...
July 7, 2017: Journal of Chemical Physics
https://www.readbyqxmd.com/read/28685821/pd-1-pd-l1-inhibitors-in-haematological-malignancies-update-2017
#20
REVIEW
Tomas Jelinek, Jana Mihalyova, Michal Kascak, Juraj Duras, Roman Hajek
The introduction of PD-1/PD-L1 pathway inhibitors is an important landmark in solid oncology with unprecedented practice-changing activity in various types of solid tumours. Amongst haematological malignancies, PD-1/PD-L1 inhibitors have been successful, so far, only in the treatment of classical Hodgkin lymphoma, which typically exhibits an over-expression of PD-1 ligands (PD-L1, PD-L2) due to alterations in chromosome 9p24.1. Such positive outcomes led to the FDA approval of nivolumab use in relapsed Hodgkin lymphoma in 2016 as the first haematological indication...
July 6, 2017: Immunology
keyword
keyword
18191
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"