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https://www.readbyqxmd.com/read/28197543/impedance-spectrum-in-cortical-tissue-implications-for-propagation-of-lfp-signals-on-the-microscopic-level
#1
Stéphanie Miceli, Torbjørn V Ness, Gaute T Einevoll, Dirk Schubert
Brain research investigating electrical activity within neural tissue is producing an increasing amount of physiological data including local field potentials (LFPs) obtained via extracellular in vivo and in vitro recordings. In order to correctly interpret such electrophysiological data, it is vital to adequately understand the electrical properties of neural tissue itself. An ongoing controversy in the field of neuroscience is whether such frequency-dependent effects bias LFP recordings and affect the proper interpretation of the signal...
January 2017: ENeuro
https://www.readbyqxmd.com/read/28197046/outcome-of-noncardiac-surgical-patients-admitted-to-a-multidisciplinary-intensive-care-unit
#2
Pradeep Kumar, M K Renuka, M S Kalaiselvan, A S Arunkumar
CONTEXT: Surgical procedures carry significant morbidity and mortality depending on the type of surgery and patients. There is a dearth of evidence from India on the outcome of surgical patients admitted to an Intensive Care Unit (ICU). AIMS: We aimed to describe the incidence and risk factors of postoperative complications and mortality in noncardiac surgical patients admitted to the ICU. SETTINGS AND DESIGN: This was a prospective observational study on all perioperative patients admitted to a multidisciplinary ICU for 18 months...
January 2017: Indian Journal of Critical Care Medicine
https://www.readbyqxmd.com/read/28181091/neuro-emotional-technique-effects-on-brain-physiology-in-cancer-patients-with-traumatic-stress-symptoms-preliminary-findings
#3
Daniel A Monti, Anna Tobia, Marie Stoner, Nancy Wintering, Michael Matthews, Xiao-Song He, Gaelle Doucet, Inna Chervoneva, Joseph I Tracy, Andrew B Newberg
PURPOSE: The purpose of this study was to characterize the neurophysiological and clinical effects that may result from the neuro emotional technique (NET) in patients with traumatic stress symptoms associated with a cancer-related event. We hypothesized that self-regulatory processing of traumatic memories would be observable as physiological changes in key brain areas after undergoing the NET intervention and that these changes would be associated with improvement of traumatic stress symptoms...
February 8, 2017: Journal of Cancer Survivorship: Research and Practice
https://www.readbyqxmd.com/read/28171804/hemodynamic-and-neuro-monitoring-for-neurocritically-ill-patients-an-international-survey-of-intensivists
#4
Sanjeev Sivakumar, Fabio S Taccone, Mohammed Rehman, Holly Hinson, Neeraj Naval, Christos Lazaridis
PURPOSE: To investigate multimodality systemic and neuro-monitoring practices in acute brain injury (ABI) and to analyze differences among "neurointensivists" (NI; clinical practice comprised >1/3 by neurocritical care), and other intensivists (OI). METHODS: Anonymous 22-question Web-based survey among physician members of SCCM and ESICM. RESULTS: Six hundred fifty-five responded (66% completion rate); 422 (65%) were OI, and 226 (35%) were NI...
January 21, 2017: Journal of Critical Care
https://www.readbyqxmd.com/read/28167808/how-do-individuals-cope-with-stress-behavioural-physiological-and-neuronal-differences-between-proactive-and-reactive-coping-styles-in-fish
#5
Marco A Vindas, Marnix Gorissen, Erik Höglund, Gert Flik, Valentina Tronci, Børge Damsgård, Per-Ove Thörnqvist, Tom O Nilsen, Svante Winberg, Øyvind Øverli, Lars O E Ebbesson
Despite the use of fish models to study human mental disorders and dysfunctions, knowledge of regional telencephalic responses in non-mammalian vertebrates expressing alternate stress coping styles is poor. Since perception of salient stimuli associated with stress coping in mammals is mainly under forebrain limbic control, we tested region-specific forebrain neural (i.e mRNA abundance and monoamine neurochemistry) and endocrine responses at basal and acute stress conditions for previously characterised proactive and reactive Atlantic salmon...
February 6, 2017: Journal of Experimental Biology
https://www.readbyqxmd.com/read/28155242/sensory-neuron-regulation-of-gastrointestinal-inflammation-and-bacterial-host-defence
#6
N Y Lai, K Mills, I M Chiu
Sensory neurons in the gastrointestinal tract have multifaceted roles in maintaining homeostasis, detecting danger and initiating protective responses. The gastrointestinal tract is innervated by three types of sensory neurons: dorsal root ganglia, nodose/jugular ganglia and intrinsic primary afferent neurons. Here, we examine how these distinct sensory neurons and their signal transducers participate in regulating gastrointestinal inflammation and host defence. Sensory neurons are equipped with molecular sensors that enable neuronal detection of diverse environmental signals including thermal and mechanical stimuli, inflammatory mediators and tissue damage...
February 2, 2017: Journal of Internal Medicine
https://www.readbyqxmd.com/read/28147268/autonomous-camkii-activity-as-a-drug-target-for-histological-and-functional-neuroprotection-after-resuscitation-from-cardiac-arrest
#7
Guiying Deng, James E Orfila, Robert M Dietz, Myriam Moreno-Garcia, Krista M Rodgers, Steve J Coultrap, Nidia Quillinan, Richard J Traystman, K Ulrich Bayer, Paco S Herson
The Ca(2+)/calmodulin-dependent protein kinase II (CaMKII) is a major mediator of physiological glutamate signaling, but its role in pathological glutamate signaling (excitotoxicity) remains less clear, with indications for both neuro-toxic and neuro-protective functions. Here, the role of CaMKII in ischemic injury is assessed utilizing our mouse model of cardiac arrest and cardiopulmonary resuscitation (CA/CPR). CaMKII inhibition (with tatCN21 or tatCN19o) at clinically relevant time points (30 min after resuscitation) greatly reduces neuronal injury...
January 31, 2017: Cell Reports
https://www.readbyqxmd.com/read/28130190/the-immunologic-considerations-in-head-transplantation
#8
REVIEW
Mark A Hardy, Allen Furr, Juan P Barret, John H Barker
The idea of head transplantation appears at first as unrealistic, unethical, and futile. Here we discuss immunological considerations in head transplantation. In a separate accompanying article we discuss surgical, physiologic, anatomic, and ethical issues concerned in body-to-head transplantation (BHT) [1]. The success of such an unusual allograft, where the donor and the recipient can reject each other, depends on prevention of complex immunologic reactions, especially rejection of the head by the body (graft-vs-host) or probably less likely, the possibility of the head rejecting the total body allograft (host-vs-graft)...
January 24, 2017: International Journal of Surgery
https://www.readbyqxmd.com/read/28112808/nerve-growth-factor-a-neuroimmune-crosstalk-mediator-for-all-seasons
#9
REVIEW
Stephen D Skaper
Neurotrophic factors comprise a broad family of biomolecules - most of which are peptides or small proteins - that support the growth, survival, and differentiation of both developing and mature neurons. The prototypical example and best-characterized neurotrophic factor is nerve growth factor (NGF) which is widely recognized as a target-derived factor responsible for the survival and maintenance of the phenotype of specific subsets of peripheral neurons and basal forebrain cholinergic nuclei during development and maturation...
January 23, 2017: Immunology
https://www.readbyqxmd.com/read/28094764/neuromorphic-meets-neuromechanics-part-ii-the-role-of-fusimotor-drive
#10
Kian Jalaleddini, Chuanxin Minos Niu, Suraj Chakravarthi Raja, Won Joon Sohn, Gerald E Loeb, Terence D Sanger, Francisco J Valero-Cuevas
OBJECTIVE: We studied the fundamentals of muscle afferentation by building a Neuro-mechano-morphic system actuating a cadaveric finger. This system is a faithful implementation of the stretch reflex circuitry. It allowed the systematic exploration of the effects of different fusimotor drives to the muscle spindle on the closed-loop stretch reflex response. APPROACH: As in Part I of this work, sensory neurons conveyed proprioceptive information from muscle spindles (with static and dynamic fusimotor drive) to populations of α-motor neurons (with recruitment and rate coding properties)...
January 17, 2017: Journal of Neural Engineering
https://www.readbyqxmd.com/read/28093303/chlorogenic-acid-rescues-sensorineural-auditory-function-in-a-diabetic-animal-model
#11
Bin Na Hong, Youn Hee Nam, Sang Ho Woo, Tong Ho Kang
Recently, many studies have reported that sensorineural hearing impairment related to neurological disorders may be caused by diabetes mellitus. However, to date, only a small number of studies have investigated the treatment of sensorineural hearing impairment. In the present study, the effects of chlorogenic acid on diabetic auditory pathway impairment were evaluated by neuro-electrical physiological measurements and morphological investigations. We have shown that CA efficiently prevents the progression of auditory pathway dysfunction caused by DM using auditory brainstem responses and auditory middle latency responses in mice...
January 16, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28057562/imaging-retina-to-study-dementia-and-stroke
#12
REVIEW
Carol Yim-Lui Cheung, M Kamran Ikram, Christopher Chen, Tien Yin Wong
With increase in life expectancy, the number of persons suffering from common age-related brain diseases, including neurodegenerative (e.g., dementia) and cerebrovascular (e.g., stroke) disease is expected to rise substantially. As current neuro-imaging modalities such as magnetic resonance imaging may not be able to detect subtle subclinical changes (resolution <100-500 μm) in dementia and stroke, there is an urgent need for other complementary techniques to probe the pathophysiology of these diseases...
January 3, 2017: Progress in Retinal and Eye Research
https://www.readbyqxmd.com/read/28051273/neural-stem-cells-in-lead-toxicity
#13
W-W Chen, X Zhang, W-J Huang
Lead (Pb) exposure in the early stages of neurodevelopment results in long-lasting alterations that ultimately cognitive function and behaviour. The prime targets of lead toxicity are the multipotent neural stem cells (NSCs). The present review will discuss the basic molecular physiology involved in the toxicity mechanisms induced by lead and its resultant counter effects on nervous system and physiology. The article shall help researchers working in the area to design new drugs and therapeutics for the efficient management of neuro-toxic states especially upon prenatal exposure to lead...
December 2016: European Review for Medical and Pharmacological Sciences
https://www.readbyqxmd.com/read/28048545/we-de-207a-04-advances-in-radiological-neuro-endovascular-interventional-imaging
#14
S Rudin
: 1. Parallels in the evolution of x-ray angiographic systems and devices used for minimally invasive endovascular therapy Charles Strother - DSA, invented by Dr. Charles Mistretta at UW-Madison, was the technology which enabled the development of minimally invasive endovascular procedures. As DSA became widely available and the potential benefits for accessing the cerebral vasculature from an endovascular approach began to be apparent, industry began efforts to develop tools for use in these procedures...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28048454/we-de-207a-00-advances-in-image-guided-neurointerventions-clinical-pull-and-technology-push
#15
Jeffrey Siewerdsen, Rebecca Fahrig
: 1. Parallels in the evolution of x-ray angiographic systems and devices used for minimally invasive endovascular therapy Charles Strother - DSA, invented by Dr. Charles Mistretta at UW-Madison, was the technology which enabled the development of minimally invasive endovascular procedures. As DSA became widely available and the potential benefits for accessing the cerebral vasculature from an endovascular approach began to be apparent, industry began efforts to develop tools for use in these procedures...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047800/we-de-207a-01-parallels-in-the-evolution-of-x-ray-angiographic-systems-and-devices-used-for-minimally-invasive-endovascular-therapy
#16
C Strother
: 1. Parallels in the evolution of x-ray angiographic systems and devices used for minimally invasive endovascular therapy Charles Strother - DSA, invented by Dr. Charles Mistretta at UW-Madison, was the technology which enabled the development of minimally invasive endovascular procedures. As DSA became widely available and the potential benefits for accessing the cerebral vasculature from an endovascular approach began to be apparent, industry began efforts to develop tools for use in these procedures...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28047144/we-de-207a-02-advances-in-cone-beam-ct-anatomical-and-functional-imaging-in-angio-suite-to-enable-one-stop-shop-stroke-imaging-workflow
#17
G Chen
: 1. Parallels in the evolution of x-ray angiographic systems and devices used for minimally invasive endovascular therapy Charles Strother - DSA, invented by Dr. Charles Mistretta at UW-Madison, was the technology which enabled the development of minimally invasive endovascular procedures. As DSA became widely available and the potential benefits for accessing the cerebral vasculature from an endovascular approach began to be apparent, industry began efforts to develop tools for use in these procedures...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28046482/we-de-207a-03-recent-advances-in-devices-used-in-neuro-interventions
#18
M Gounis
: 1. Parallels in the evolution of x-ray angiographic systems and devices used for minimally invasive endovascular therapy Charles Strother - DSA, invented by Dr. Charles Mistretta at UW-Madison, was the technology which enabled the development of minimally invasive endovascular procedures. As DSA became widely available and the potential benefits for accessing the cerebral vasculature from an endovascular approach began to be apparent, industry began efforts to develop tools for use in these procedures...
June 2016: Medical Physics
https://www.readbyqxmd.com/read/28019690/structural-analysis-of-oligomeric-and-protofibrillar-a%C3%AE-amyloid-pair-structures-considering-f20l-mutation-effects-using-molecular-dynamics-simulations
#19
Myeongsang Lee, Hyun Joon Chang, Inchul Baek, Sungsoo Na
Aβ amyloid proteins are involved in neuro-degenerative diseases such as Alzheimer's, Parkinson's, and so forth. Due to its structurally stable feature under physiological conditions, Aβ amyloid protein disrupts the normal cell function. Because of these concerns, understanding the structural feature of Aβ amyloid protein in detail is crucial. There have been some efforts on lowering the structural stabilities of Aβ amyloid fibrils by decreasing the aromatic residues characteristic and hydrophobic effect...
December 26, 2016: Proteins
https://www.readbyqxmd.com/read/27992068/exploring-two-novel-cases-of-suspected-ictal-epileptic-headache-a-rare-form-of-paediatric-epilepsy
#20
Emanuele G Coci, Joachim Riedel
AIM: Ictal epileptic headache (IEH) is a rare and underestimated epileptic form, characterised by epileptiform discharges and headache attacks without any other ictal sensory-motor manifestations. IEH is difficult to diagnose, because the epileptiform discharges have to be registered during the headache attack and the headache has to disappear after the intravenous administration of an anti-epileptic drug, according to the last diagnostic criteria. This study explored the clinical, neuro-physiological and therapeutic features of IEH in the paediatric population...
December 19, 2016: Acta Paediatrica
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