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https://www.readbyqxmd.com/read/29684437/sleep-dysfunction-following-neonatal-ischemic-seizures-are-differential-by-neonatal-age-of-insult-as-determined-by-qeeg-in-a-mouse-model
#1
S K Kang, S Ammanuel, S Thodupunuri, D A Adler, M V Johnston, S D Kadam
Neonatal seizures associated with hypoxic-ischemic encephalopathy (HIE) pose a challenge in their acute clinical management and are often followed by long-term neurological consequences. We used a newly characterized CD-1 mouse model of neonatal ischemic seizures associated with age-dependent (P7 vs. P10) seizure severity and phenobarbital efficacy (i.e.; PB-resistant vs. PB-efficacious respectively) following unilateral carotid ligation. The long-term consequences following untreated neonatal seizures in P7 vs...
April 20, 2018: Neurobiology of Disease
https://www.readbyqxmd.com/read/29666960/consciousness-indexing-and-outcome-prediction-with-resting-state-eeg-in-severe-disorders-of-consciousness
#2
Sabina Stefan, Barbara Schorr, Alex Lopez-Rolon, Iris-Tatjana Kolassa, Jonathan P Shock, Martin Rosenfelder, Suzette Heck, Andreas Bender
We applied the following methods to resting-state EEG data from patients with disorders of consciousness (DOC) for consciousness indexing and outcome prediction: microstates, entropy (i.e. approximate, permutation), power in alpha and delta frequency bands, and connectivity (i.e. weighted symbolic mutual information, symbolic transfer entropy, complex network analysis). Patients with unresponsive wakefulness syndrome (UWS) and patients in a minimally conscious state (MCS) were classified into these two categories by fitting and testing a generalised linear model...
April 17, 2018: Brain Topography
https://www.readbyqxmd.com/read/29658505/-the-possibilities-of-neurostimulation-sympathetic-correction-in-the-treatment-of-amnestic-korsakoff-s-psychosis
#3
A V Fedotovskih, K Yu Retyunskiy, T S Petrenko, V S Kublanov
AIM: To evaluate the efficacy of non-invasive multichannel electrical stimulation (sympathetic correction) in patients with alcohol amnesic (Korsakoff's) psychosis. MATERIAL AND METHODS: Thirty-seven men, aged 33-48 years, with Korsakoff's (amnestic) psychosis were studied. The duration of disease varied from 12 to 24 month. The device of electrical stimulation of neck nerve structures was used for neuroelectrostimulation. Treatment included 15 sessions within 3 weeks...
2018: Zhurnal Nevrologii i Psikhiatrii Imeni S.S. Korsakova
https://www.readbyqxmd.com/read/29656189/quantitative-electroencephalography-as-a-marker-of-cognitive-fluctuations-in-dementia-with-lewy-bodies-and-an-aid-to-differential-diagnosis
#4
Myrto Stylianou, Nicholas Murphy, Luis R Peraza, Sara Graziadio, Ruth Cromarty, Alison Killen, John T O' Brien, Alan J Thomas, Fiona E N LeBeau, John-Paul Taylor
OBJECTIVE: We investigated for quantitative EEG (QEEG) differences between Alzheimer's disease (AD), dementia with Lewy bodies (DLB) and Parkinson's disease dementia (PDD) patients and healthy controls, and for QEEG signatures of cognitive fluctuations (CFs) in DLB. METHODS: We analysed eyes-closed, resting state EEGs from 18 AD, 17 DLB and 17 PDD patients with mild dementia, and 21 age-matched controls. Measures included spectral power, dominant frequency (DF), frequency prevalence (FP), and temporal DF variability (DFV), within defined EEG frequency bands and cortical regions...
April 3, 2018: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/29563325/preclinical-to-human-translational-pharmacology-of-the-novel-m-1-positive-allosteric-modulator-mk-7622
#5
Jason M Uslaner, Scott D Kuduk, Marion Wittmann, Henry S Lange, Steven V Fox, Chris Min, Natasa Pajkovic, Dawn Harris, Caroline Cilissen, Chantal Mahon, Kate Mostoller, Steve Warrington, Douglas C Beshore
The current standard of care for treating Alzheimer's disease is acetylcholinesterase inhibitors, which nonselectively increase cholinergic signaling by indirectly enhancing activity of nicotinic and muscarinic receptors. These drugs improve cognitive function in patients, but also produce unwanted side-effects that limit their efficacy. In an effort to selectively improve cognition and avoid the cholinergic side-effects associated with the standard of care, various efforts have been aimed at developing selective M1 muscarinic receptor activators...
March 21, 2018: Journal of Pharmacology and Experimental Therapeutics
https://www.readbyqxmd.com/read/29545700/the-effects-of-whole-body-vibration-combined-computerized-postural-control-training-on-the-lower-extremity-muscle-activity-and-cerebral-cortex-activity-in-stroke-patients
#6
Yo-Han Uhm, Dae-Jung Yang
[Purpose] The purpose of this study was to examine the effect of computerized postural control training using whole body vibration on lower limb muscle activity and cerebral cortical activation in acute stroke patients. [Subjects and Methods] Thirty stroke patients participated and were divided into groups of 10, a group of the computerized postural control training using whole body vibration (Group I), the computerized postural control training combined with aero step (Group II) and computerized postural control training (Group III)...
February 2018: Journal of Physical Therapy Science
https://www.readbyqxmd.com/read/29526715/a-novel-pharmacodynamic-model-in-rats-for-preventing-vascular-dementia-from-maintaining-neurovascular-coupling-sensitivity
#7
Xin Zhao, Jinyu Liu, Shijun Yang, Dandan Song, Chen Wang, Chen Chen, Chengcheng Wang, Feifei Pu, Runmei Yang, Xiaoya Li, Qiuting Wang, Shasha Ge, Yulin Lin, Xiuhua Liu, Dayong Cai
Vascular dementia (VaD) is the common cognitive disorder derived mainly from lacunar stroke. The neurovascular coupling (NVC) dysfunction involves in its pathogenesis. VaD lacks suitable animal models for developing preventive therapies. This study aimed to confirm a model for preventing VaD via maintaining NVC sensitivity in rats. The model was replicated with autologous microthrombi against the background of hypercholesterolemia. A phosphodiesterase inhibitor (pentoxyfylline) was preventively administrated to confirm the role of NVC sensitivity...
May 15, 2018: European Journal of Pharmacology
https://www.readbyqxmd.com/read/29526598/disturbed-functional-connectivity-within-the-left-prefrontal-cortex-and-sensorimotor-areas-predicts-impaired-cognitive-speed-in-patients-with-first-episode-schizophrenia
#8
Paweł Krukow, Kamil Jonak, Hanna Karakuła-Juchnowicz, Arkadiusz Podkowiński, Katarzyna Jonak, Magdalena Borys, Michał Harciarek
This study aimed at identifying abnormal cortico-cortical functional connectivity patterns that could predict cognitive slowing in patients with schizophrenia. A group of thirty-two patients with the first-episode schizophrenia and comparable healthy controls underwent resting-state qEEG and cognitive assessment. Phase Lag Index (PLI) was applied as a connectivity index and the synchronizations were analyzed in six frequencies. Pairs of electrodes were grouped to separately cover frontal, temporal, central, parietal and occipital regions...
March 4, 2018: Psychiatry Research
https://www.readbyqxmd.com/read/29468978/comparing-effectiveness-of-a-combined-herbal-drug-based-on-echium-amoenum-with-citalopram-in-the-treatment-of-major-depressive-disorder
#9
Majid Anushiravani, Ali Akhondpour Manteghi, Ali Taghipur, Mahdi Eslami
BACKGROUND: According to new studies, only 60% of depressed patients respond to pharmaceutical treatment while suffering from their side effects. Natural products as adjuvant or alternative therapies should be examined to find safer and more effective ways to cope with depression. OBJECTIVE: Finding out the potential benefits of a combined herbal drug based on Echium amoenum compared with citalopram in the treatment of Major Depressive Disorder. DESIGN AND SETTING: In psychiatry clinics of Mashhad University of Medical Sciences, 50 patients who met the criteria for Major Depressive Disorder based on DSM-5 were studied in a parallel randomized controlled trial...
February 18, 2018: Current Drug Discovery Technologies
https://www.readbyqxmd.com/read/29463290/transcranial-doppler-combined-with-quantitative-eeg-brain-function-monitoring-and-outcome-prediction-in-patients-with-severe-acute-intracerebral-hemorrhage
#10
Ying Chen, Weihai Xu, Lijuan Wang, Xiaoming Yin, Jie Cao, Fang Deng, Yingqi Xing, Jiachun Feng
BACKGROUND: Neurological deterioration after intracerebral hemorrhage (ICH) is thought to be closely related to increased intracranial pressure (ICP), decreased cerebral blood flow (CBF), and brain metabolism. Transcranial Doppler (TCD) is increasingly used as an indirect measure of ICP, and quantitative EEG (QEEG) can reflect the coupling of CBF and metabolism. We aimed to combine TCD and QEEG to comprehensively assess brain function after ICH and provide prognostic diagnosis. METHODS: We prospectively enrolled patients with severe acute supratentorial (SAS)-ICH from June 2015 to December 2016...
February 20, 2018: Critical Care: the Official Journal of the Critical Care Forum
https://www.readbyqxmd.com/read/29448148/large-inter-rater-variability-on-eeg-reactivity-is-improved-by-a-novel-quantitative-method
#11
Christophe Henri Valdemar Duez, Mads Qvist Ebbesen, Krisztina Benedek, Martin Fabricius, Mary Doreen Atkins, Sandor Beniczky, Troels W Kjaer, Hans Kirkegaard, Birger Johnsen
OBJECTIVE: To assess inter-rater agreement on EEG-reactivity (EEG-R) in comatose patients and compare it with a quantitative method (QEEG-R). METHODS: Six 30-s stimulation epochs (noxious, visual and auditory) were performed during EEG on 19 neurosurgical and 11 cardiac arrest patients. Six experts analysed EEGs for reactivity using their habitual methods. QEEG-R was defined as present if ≥2/6 epochs were reactive (stimulation/rest power ratio exceeding noise level)...
February 2, 2018: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/29444081/alpha-desynchronization-synchronization-during-working-memory-testing-is-compromised-in-acute-mild-traumatic-brain-injury-mtbi
#12
Xianghong Arakaki, Michael Shoga, Lianyang Li, George Zouridakis, Thao Tran, Alfred N Fonteh, Jessica Dawlaty, Robert Goldweber, Janice M Pogoda, Michael G Harrington
Diagnosing and monitoring recovery of patients with mild traumatic brain injury (mTBI) is challenging because of the lack of objective, quantitative measures. Diagnosis is based on description of injuries often not witnessed, subtle neurocognitive symptoms, and neuropsychological testing. Since working memory (WM) is at the center of cognitive functions impaired in mTBI, this study was designed to define objective quantitative electroencephalographic (qEEG) measures of WM processing that may correlate with cognitive changes associated with acute mTBI...
2018: PloS One
https://www.readbyqxmd.com/read/29414138/comparative-sensitivity-of-quantitative-eeg-qeeg-spectrograms-for-detecting-seizure-subtypes
#13
Ajay Goenka, Alexis Boro, Elissa Yozawitz
PURPOSE: To assess the sensitivity of Persyst version 12 QEEG spectrograms to detect focal, focal with secondarily generalized, and generalized onset seizures. METHODS: A cohort of 562 seizures from 58 patients was analyzed. Successive recordings with 2 or more seizures during continuous EEG monitoring for clinical indications in the ICU or EMU between July 2016 and January 2017 were included. Patient ages ranged from 5 to 64 years (mean = 36 years). There were 125 focal seizures, 187 secondarily generalized and 250 generalized seizures from 58 patients analyzed...
January 25, 2018: Seizure: the Journal of the British Epilepsy Association
https://www.readbyqxmd.com/read/29379037/detection-of-time-frequency-and-direction-resolved-communication-within-brain-networks
#14
Barry Crouch, Linda Sommerlade, Peter Veselcic, Gernot Riedel, Björn Schelter, Bettina Platt
Electroencephalography (EEG) records fast-changing neuronal signalling and communication and thus can offer a deep understanding of cognitive processes. However, traditional data analyses which employ the Fast-Fourier Transform (FFT) have been of limited use as they do not allow time- and frequency-resolved tracking of brain activity and detection of directional connectivity. Here, we applied advanced qEEG tools using autoregressive (AR) modelling, alongside traditional approaches, to murine data sets from common research scenarios: (a) the effect of age on resting EEG; (b) drug actions on non-rapid eye movement (NREM) sleep EEG (pharmaco-EEG); and (c) dynamic EEG profiles during correct vs incorrect spontaneous alternation responses in the Y-maze...
January 29, 2018: Scientific Reports
https://www.readbyqxmd.com/read/29283290/real-time-quantitative-monitoring-of-cerebral-blood-flow-by-laser-speckle-contrast-imaging-after-cardiac-arrest-with-targeted-temperature-management
#15
Junyun He, Hongyang Lu, Leanne Young, Ruoxian Deng, Daniel Callow, Shanbao Tong, Xiaofeng Jia
Brain injury is the main cause of mortality and morbidity after cardiac arrest (CA). Changes in cerebral blood flow (CBF) after reperfusion are associated with brain injury and recovery. To characterize the relative CBF (rCBF) after CA, 14 rats underwent 7 min asphyxia-CA and were randomly treated with 6 h post-resuscitation normothermic (36.5-37.5℃) or hypothermic- (32-34℃) targeted temperature management (TTM) (N = 7). rCBF was monitored by a laser speckle contrast imaging (LSCI) technique. Brain recovery was evaluated by neurologic deficit score (NDS) and quantitative EEG - information quantity (qEEG-IQ)...
January 1, 2017: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/29224411/change-in-quantitative-eeg-theta-cordance-as-a-potential-predictor-of-repetitive-transcranial-magnetic-stimulation-clinical-outcome-in-major-depressive-disorder
#16
Aimee M Hunter, Thien X Nghiem, Ian A Cook, David E Krantz, Michael J Minzenberg, Andrew F Leuchter
Repetitive transcranial magnetic stimulation (rTMS) has demonstrated efficacy in major depressive disorder (MDD), although clinical outcome is variable. Change in the resting-state quantitative electroencephalogram (qEEG), particularly in theta cordance early in the course of treatment, has been linked to antidepressant medication outcomes but has not been examined extensively in clinical rTMS. This study examined change in theta cordance over the first week of clinical rTMS and sought to identify a biomarker that would predict outcome at the end of 6 weeks of treatment...
November 1, 2017: Clinical EEG and Neuroscience: Official Journal of the EEG and Clinical Neuroscience Society (ENCS)
https://www.readbyqxmd.com/read/29214652/pharmacology-in-translation-the-preclinical-and-early-clinical-profile-of-the-novel-%C3%AE-2-3-functionally-selective-gaba-a-receptor-positive-allosteric-modulator-pf-06372865
#17
Sarah A Nickolls, Rachel Gurrell, Guido van Amerongen, Juha Kammonen, Lishuang Cao, Adam R Brown, Clara Stead, Andy Mead, Christine Watson, Cathleen Hsu, Robert M Owen, Andy Pike, Rebecca L Fish, Laigao Chen, Ruolun Qiu, Evan D Morris, Gang Feng, Mark Whitlock, Donal Gorman, Joop van Gerven, David S Reynolds, Pinky Dua, Richard P Butt
BACKGROUND AND PURPOSE: Benzodiazepines, non-selective positive allosteric modulators (PAMs) of GABAA receptors, have significant side effects that limit their clinical utility. As many of these side effects are mediated by the α1 subunit, there has been a concerted effort to develop α2/3 subtype-selective PAMs. EXPERIMENTAL APPROACH: In vitro screening assays were used to identify molecules with functional selectivity for receptors containing α2/3 subunits over those containing α1 subunits...
February 2018: British Journal of Pharmacology
https://www.readbyqxmd.com/read/29213487/traumatic-brain-injury-an-eeg-point-of-view
#18
REVIEW
Jéssica Natuline Ianof, Renato Anghinah
Traumatic brain injury (TBI) is a silent epidemic. Mild traumatic brain injury (mTBI) causes brain injury that results in electrophysiologic abnormalities visible on electroencephalography (EEG) recordings. The purpose of this brief review was to discuss the importance of EEG findings in traumatic brain injury. Relevant articles published during the 1996-2016 period were retrieved from Medline (PubMed). The keywords were in English and included "traumatic brain injury", "EEG" and "quantitative EEG"...
January 2017: Dementia & Neuropsychologia
https://www.readbyqxmd.com/read/29197598/effect-of-sedation-on-quantitative-electroencephalography-after-cardiac-arrest
#19
Callie M Drohan, Alessandra I Cardi, Jon C Rittenberger, Alexandra Popescu, Clifton W Callaway, Maria E Baldwin, Jonathan Elmer
BACKGROUND: Electroencephalography (EEG) has clinical and prognostic importance after cardiac arrest (CA). Recently, interest in quantitative EEG (qEEG) analysis has grown. The qualitative effects of sedation on EEG are well known, but potentially confounding effects of sedatives on qEEG after anoxic injury are poorly characterized. We hypothesize that sedation increases suppression ratio (SR) and decreases alpha/delta ratio (ADR) and amplitude-integrated EEG (aEEG), and that the magnitude of sedation effects will be associated with outcome...
March 2018: Resuscitation
https://www.readbyqxmd.com/read/29197198/cardiovascular-disease-risk-factors-in-patients-with-posttraumatic-stress-disorder-ptsd-a-narrative-review
#20
Marina Šagud, Nenad Jakšić, Bjanka Vuksan-Ćusa, Mladen Lončar, Ivana Lončar, Alma Mihaljević Peleš, Davor Miličić, Miro Jakovljević
Posttraumatic stress disorder (PTSD) is a chronic condition related to severe stress and trauma. There is a mounting evidence about increased prevalence and mortality from cardiovascular diseases (CVD) in patients with PTSD. This review summarizes the current data on possible relations between PTSD and increased risks of CVD, including biological, psychological and behavioral factors. Biological factors refer to increased prevalence of metabolic syndrome (MetS), hypertension, elevation of pro-inflammatory cytokines and homocysteine levels...
December 2017: Psychiatria Danubina
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