keyword
MENU ▼
Read by QxMD icon Read
search

Nerve

keyword
https://www.readbyqxmd.com/read/29471202/conductive-micropatterned-polyurethane-films-as-tissue-engineering-scaffolds-for-schwann-cells-and-pc12-cells
#1
Yaobin Wu, Ling Wang, Tianli Hu, Peter X Ma, Baolin Guo
Controlling cellular alignment and elongation has been demonstrated as an important parameter for developing nerve tissue engineering scaffolds. Many approaches have been developed to guide cellular orientation for nerve regeneration such as micropatterning techniques. However, most of materials used for developing micropatterning scaffolds lack of bioactivity and biofunctionability. Here we present a functional conductive micropatterned scaffold based on bioactive conductive biodegradable polyurethane prepared using a micro-molding technique...
February 13, 2018: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/29471183/axillary-motor-nerve-conduction-study-description-of-technique-and-provision-of-normative-data
#2
Panagiotis Zis, Marios Hadjivassiliou, Dasappaiah Ganesh Rao
BACKGROUND: Axillary nerve lesions can commonly occur secondary to trauma or brachial plexopathy. Our aim was to describe our technique of axillary nerve motor conduction studies and provide the respective normal values. METHODS: Active electrode was positioned over the most prominent portion of the middle deltoid, approximately 5-7 cm distal to the acromion. Reference electrode was positioned over the acromion. Ground electrode was placed between the active and the reference electrodes...
February 10, 2018: Journal of Electromyography and Kinesiology
https://www.readbyqxmd.com/read/29471064/tms-smart-scalp-mapping-of-annoyance-ratings-and-twitches-caused-by-transcranial-magnetic-stimulation
#3
Lotte Meteyard, Nicholas Holmes
BACKGROUND: The magnetic pulse generated during transcranial magnetic stimulation (TMS) also stimulates cutaneous nerves and muscle fibres, with the most commonly reported side effect being muscle twitches and sometimes painful sensations. These sensations affect behaviour during experimental tasks, presenting a potential confound for 'online' TMS studies. NEW METHOD: Our objective was to systematically map the degree of disturbance (ratings of annoyance, pain, and muscle twitches) caused by TMS at 43 locations across the scalp...
February 19, 2018: Journal of Neuroscience Methods
https://www.readbyqxmd.com/read/29471052/revisiting-rabies-virus-neutralizing-antibodies-through-infecting-balb-c-mice-with-live-rabies-virus
#4
Yunlong Qin, Todd G Smith, Felix Jackson, Nadia F Gallardo-Romero, Clint N Morgan, Victoria Olson, Christina L Hutson, Xianfu Wu
This study investigates the production of rabies virus (RABV) neutralizing antibody after virus infection through a mouse model. The BALB/c mice from different age groups (three, five, seven week old) were intramuscularly inoculated with live rabies virus (TX coyote 323R). Without pre-exposure or post-exposure prophylaxis (PEP), we found there is a decreased fatality with increased age of animals, the mortalities are 60%, 50%, and 30%, respectively. Interestingly, through assay of rapid fluorescent focus inhibition test (RFFIT), direct fluorescent antibody (DFA) and quantitative Polymerase Chain Reaction (qPCR), the results showed that all the animals that succumbed to rabies challenge, except one, developed circulating neutralizing antibodies, and all the healthy animals, except two, did not generate virus neutralizing antibodies (VNA)...
February 19, 2018: Virus Research
https://www.readbyqxmd.com/read/29471039/high-frequency-low-intensity-ultrasound-and-microbubbles-enhance-nerve-blockade
#5
Kathleen Cullion, Claudia M Santamaria, Changyou Zhan, David Zurakowski, Tao Sun, Nathan J McDannold, Daniel S Kohane
No abstract text is available yet for this article.
February 19, 2018: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/29470730/sacral-nerve-stimulation-versus-percutaneous-tibial-nerve-stimulation-for-faecal-incontinence-a-systematic-review-and-meta-analysis
#6
Constantinos Simillis, Nikhil Lal, Shengyang Qiu, Christos Kontovounisios, Shahnawaz Rasheed, Emile Tan, Paris P Tekkis
AIMS: Percutaneous tibial nerve stimulation (PTNS) and sacral nerve stimulation (SNS) are both second-line treatments for faecal incontinence (FI). To compare the clinical outcomes and effectiveness of SNS versus PTNS for treating FI in adults. METHOD: A literature search of MEDLINE, Embase, Science Citation Index Expanded and Cochrane was performed in order to identify studies comparing SNS and PTNS for treating FI. A risk of bias assessment was performed using The Cochrane Collaboration's risk of bias tool...
February 22, 2018: International Journal of Colorectal Disease
https://www.readbyqxmd.com/read/29470713/health-related-quality-of-life-in-patients-undergoing-cervico-thoracic-osteotomies-for-fixed-cervico-thoracic-kyphosis-in-patients-with-ankylosing-spondylitis
#7
Silviu Sabou, Hossein Mehdian, Dritan Pasku, Luca Boriani, Nasir A Quraishi
PURPOSE: Ankylosing spondylitis (AS) can result in severe cervico-thoracic kyphotic deformity (CTKD). Few studies have addressed the relationship between cervico-thoracic osteotomies in AS and health-related quality of life scores. The aim of this study is to evaluate the impact of cervico-thoracic osteotomy (CTO) on improving quality of life for patients with fixed CTKD. METHODS: A database of all patients who underwent a CTO for CTKD in patients with AS was created...
February 22, 2018: European Spine Journal
https://www.readbyqxmd.com/read/29470711/mast-cell-nerve-interaction-in-the-colon-of-trypanosoma-cruzi-infected-individuals-with-chagasic-megacolon
#8
Patrícia Rocha Martins, Rodolfo Duarte Nascimento, Aline Tomaz Dos Santos, Enio Chaves de Oliveira, Patricia Massara Martinelli, Débora d'Avila Reis
Chagas disease is an infection caused by the parasite Trypanosoma cruzi that affects millions of people worldwide and is endemic in Latin America. Megacolon is the most frequent complication of the digestive chronic form and happens due to lesions of the enteric nervous system. The neuronal lesions seem to initiate in the acute phase and persist during the chronic phase, albeit the mechanisms involved in this process are still debated. Among the cells of the immune system possibly involved in this pathological process is the mast cell (MC) due to its well-known role in the bi-directional communication between the immune and nervous systems...
February 22, 2018: Parasitology Research
https://www.readbyqxmd.com/read/29470646/reactive-oxygen-radicals-and-gaseous-transmitters-in-carotid-body-activation-by-intermittent-hypoxia
#9
REVIEW
Nanduri R Prabhakar, Ying-Jie Peng, Guoxiang Yuan, Jayasri Nanduri
Sleep apnea is a prevalent respiratory disease characterized by periodic cessation of breathing during sleep causing intermittent hypoxia (IH). Sleep apnea patients and rodents exposed to IH exhibit elevated sympathetic nerve activity and hypertension. A heightened carotid body (CB) chemoreflex has been implicated in causing autonomic abnormalities in IH-treated rodents and in sleep apnea patients. The purpose of this article is to review the emerging evidence showing that interactions between reactive oxygen species (ROS) and gaseous transmitters as a mechanism cause hyperactive CB by IH...
February 22, 2018: Cell and Tissue Research
https://www.readbyqxmd.com/read/29470563/nonsurgical-treatment-for-posttraumatic-complete-facial-nerve-paralysis
#10
Alok Thakar, Madan P Gupta, Achal Srivastava, Deepak Agrawal, Atin Kumar
Importance: Current recommendations envisage early surgical exploration for complete facial nerve paralysis associated with temporal bone fracture and unfavorable electrophysiologic features (response to electroneuronography, <5%). However, the evidence base for such a practice is weak, with the potential for spontaneous improvement being unknown, and the expected results from alternative nonsurgical treatment also undefined. Objective: To document the results of nonsurgical treatment for posttraumatic complete facial paralysis with undisplaced temporal bone fracture and unfavorable electrophysiologic features...
February 22, 2018: JAMA Otolaryngology—Head & Neck Surgery
https://www.readbyqxmd.com/read/29470537/microsomal-prostaglandin-e-synthase-1-gene-deletion-impairs-neuro-immune-circuitry-of-the-cholinergic-anti-inflammatory-pathway-in-endotoxaemic-mouse-spleen
#11
Priya Revathikumar, Johanna Estelius, Utsa Karmakar, Erwan Le Maître, Marina Korotkova, Per-Johan Jakobsson, Jon Lampa
The cholinergic anti-inflammatory pathway (CAP) is an innate neural reflex where parasympathetic and sympathetic nerves work jointly to control inflammation. Activation of CAP by vagus nerve stimulation (VNS) has paved way for novel therapeutic strategies in treating inflammatory diseases. Recently, we discovered that VNS mediated splenic acetylcholine (ACh) release and subsequent immunosuppression in response to LPS associated inflammation is impaired in mice lacking microsomal prostaglandin E synthase-1 (mPGES-1) expression, a key enzyme responsible for prostaglandin E2 synthesis...
2018: PloS One
https://www.readbyqxmd.com/read/29470529/xenopus-an-alternative-model-system-for-identifying-muco-active-agents
#12
Hyo Jung Sim, Sang-Hyun Kim, Kyung-Jae Myung, Taejoon Kwon, Hyun-Shik Lee, Tae Joo Park
The airway epithelium in human plays a central role as the first line of defense against environmental contaminants. Most respiratory diseases such as chronic obstructive pulmonary disease (COPD), asthma, and respiratory infections, disturb normal muco-ciliary functions by stimulating the hypersecretion of mucus. Several muco-active agents have been used to treat hypersecretion symptoms in patients. Current muco-active reagents control mucus secretion by modulating either airway inflammation, cholinergic parasympathetic nerve activities or by reducing the viscosity by cleaving crosslinking in mucin and digesting DNAs in mucus...
2018: PloS One
https://www.readbyqxmd.com/read/29470522/quantification-of-edematous-changes-by-diffusion-magnetic-resonance-imaging-in-gastrocnemius-muscles-after-spinal-nerve-ligation
#13
Koji Abe, Toshiyasu Nakamura, Eiko Yamabe, Koichi Oshio, Takeshi Miyamoto, Masaya Nakamura, Morio Matsumoto, Kazuki Sato
Patients with complex regional pain syndrome (CRPS) exhibit diverse symptoms, such as neuropathic pain, allodynia, local edema and skin color changes in the affected lesion. Although nerve injury may cause CRPS, pathophysiological mechanisms underlying the syndrome are unclear, and local edema, a characteristic of CRPS, has not been evaluated quantitatively for technical reasons. Here, using a rat spinal nerve ligation-induced CRPS model, we show that edematous changes in gastrocnemius muscle can be detected quantitatively by diffusion magnetic resonance imaging (MRI)...
2018: PloS One
https://www.readbyqxmd.com/read/29470463/monitoring-intracellular-nanomolar-calcium-using-fluorescence-lifetime-imaging
#14
Kaiyu Zheng, Thomas P Jensen, Dmitri A Rusakov
Nanomolar-range fluctuations of intracellular [Ca2+ ] are critical for brain cell function but remain difficult to measure. We have advanced a microscopy technique to monitor intracellular [Ca2+ ] in individual cells in acute brain slices (also applicable in vivo) using fluorescence lifetime imaging (FLIM) of the Ca2+ -sensitive fluorescent indicator Oregon Green BAPTA1 (OGB-1). The OGB-1 fluorescence lifetime is sensitive to [Ca2+ ] within the 10-500 nM range but not to other factors such as viscosity, temperature, or pH...
March 2018: Nature Protocols
https://www.readbyqxmd.com/read/29470437/neurophysiological-assessment-of-abnormalities-of-the-neuromuscular-junction-in-children
#15
REVIEW
Matthew Pitt
The function of the neuromuscular junction in children is amenable to electrophysiological testing. Of the two tests available, repetitive nerve stimulation is uncomfortable and has a reduced sensitivity compared with single-fibre methodology. The latter is the method of choice, recording the variability in neuromuscular transmission as a value called jitter. It can be performed by voluntary activation of the muscle being examined, which is not suitable in children, or by stimulation techniques. A modification of these techniques, called Stimulated Potential Analysis with Concentric needle Electrodes (SPACE), is well tolerated and can be performed while the child is awake...
February 22, 2018: International Journal of Molecular Sciences
https://www.readbyqxmd.com/read/29470276/anatomical-feasibility-of-extradural-transferring-s2-and-s3-ventral-roots-to-s1-ventral-root-for-restoring-neurogenic-bladder-in-spinal-cord-injury
#16
Kaixiang Yang, Hongtao Chen, Jian Tang, Dawei Ge, Sheng Zhang, Tao Sui, Xiaojian Cao
STUDY DESIGN: Anatomic study in 6 formalin-fixed cadavers. OBJECTIVE: To determine the anatomical feasibility of transferring the S2 and S3 ventral roots (VRs) to S1 VR as a method for restoring bladder dysfunction in spinal cord injury. SUMMARY OF BACKGROUND DATA: A large quantity of researches of neuroanastomosis methods have been used for treating the bladder dysfunction in spinal cord injury (SCI). However, some limitations retard the development of those studies...
February 21, 2018: Spine
https://www.readbyqxmd.com/read/29470194/magnetization-transfer-ratio-in-peripheral-nerve-tissue-does-it-depend-on-age-or-location
#17
Jennifer Kollmer, Thorsten Kästel, Johann M E Jende, Martin Bendszus, Sabine Heiland
BACKGROUND AND PURPOSE: Magnetization transfer contrast imaging provides indirect information on the concentration of "bound" water protons and their interactions with "free" water molecules. The purpose of this study is to analyze location- and age-dependent changes in the magnetization transfer ratio (MTR) of lower extremity nerves. MATERIALS AND METHODS: Ten younger (20-32 years) and 5 older (50-63 years) healthy volunteers underwent magnetization transfer contrast imaging at 3 Tesla Two 3-dimensional gradient echo sequences with and without an off-resonance saturation pulse (repetition time: 58 milliseconds; echo time: 2...
February 21, 2018: Investigative Radiology
https://www.readbyqxmd.com/read/29469705/herpes-zoster-ophthalmicus-with-associated-vasculopathy-causing-stroke
#18
Camila Antia, Leah Persad, Ali Alikhan
Varicella zoster virus (VZV) is an exclusively human, double-stranded DNA virus. Primary infection causes varicella (chickenpox); later the virus becomes dormant in the dorsal root, cranial nerve, and autonomic ganglia along the entire span of the nervous system, retaining the capacity to reactivate and cause a variety of dermal and neurological complications. Recently there has been increasing recognition, both clinically and epidemiologically, of the relationship between VZV and subsequent strokes. Herein, we describe a case of a previously healthy individual with reactivation of VZV causing herpes zoster opthtalmicus along with devastating multifocal vasculopathy...
July 15, 2017: Dermatology Online Journal
https://www.readbyqxmd.com/read/29469548/pectoral-nerve-block-and-persistent-pain-following-breast-cancer-surgery-an-observational-cohort-study
#19
Guillaume Besch, Caroline Lagrave-Safranez, Fiona Ecarnot, Valentine de Larminat, Catherine Gay, Francis Berthier, Emmanuel Samain, Sebastien Pili-Floury
No abstract text is available yet for this article.
February 15, 2018: Minerva Anestesiologica
https://www.readbyqxmd.com/read/29469164/heart-rate-variability-affected-by-radiofrequency-electromagnetic-field-in-adolescent-students
#20
Jakub Misek, Igor Belyaev, Viera Jakusova, Ingrid Tonhajzerova, Jan Barabas, Jan Jakus
This study examines the possible effect of radiofrequency (RF) electromagnetic fields (EMF) on the autonomic nervous system (ANS). The effect of RF EMF on ANS activity was studied by measuring heart rate variability (HRV) during ortho-clinostatic test (i.e., transition from lying to standing and back) in 46 healthy grammar school students. A 1788 MHz pulsed wave with intensity of 54 ± 1.6 V/m was applied intermittently for 18 min in each trial. Maximum specific absorption rate (SAR10 ) value was determined to 0...
February 22, 2018: Bioelectromagnetics
keyword
keyword
10899
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"