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https://www.readbyqxmd.com/read/29783078/delayed-bipolar-and-ganglion-cells-neuroretinal-processing-in-regular-cannabis-users-the-retina-as-a-relevant-site-to-investigate-brain-synaptic-transmission-dysfunctions
#1
Thomas Schwitzer, Raymund Schwan, Karine Angioi-Duprez, Anne Giersch, Laurence Lalanne, Eliane Albuisson, Vincent Laprevote
Cannabis use is widespread worldwide, but the impact of smoking cannabis regularly on brain synaptic transmission has only been partially elucidated. The retina is considered as an easy means of determining dysfunction in brain synaptic transmission. The endocannabinoid system is involved in regulating retinal synaptic transmission, which might also be affected by tobacco. Previous preliminary results have shown impairments in retinal ganglion cell response in cannabis users. Here, we test the extent to which earlier retinal levels-bipolar cells and photoreceptors-are affected in cannabis users, i...
May 1, 2018: Journal of Psychiatric Research
https://www.readbyqxmd.com/read/29782961/baclofen-induced-encephalopathy-in-overdose-modeling-of-the-electroencephalographic-effect-concentration-relationships-and-contribution-of-tolerance-in-the-rat
#2
Magali Chartier, Isabelle Malissin, Salma Tannous, Laurence Labat, Patricia Risède, Bruno Mégarbane, Lucie Chevillard
Baclofen, a γ-amino-butyric acid type-B receptor agonist with exponentially increased use at high-dose to facilitate abstinence in chronic alcoholics, is responsible for increasing poisonings. Baclofen overdose may induce severe encephalopathy and electroencephalographic (EEG) abnormalities. Whether prior prolonged baclofen treatment may influence the severity of baclofen-induced encephalopathy in overdose has not been established. We designed a rat study to characterize baclofen-induced encephalopathy, correlate its severity with plasma concentrations and investigate the contribution of tolerance...
May 18, 2018: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/29775031/-neurofeedback-therapy-in-the-treatment-of-tinnitus
#3
REVIEW
Z Q Zhao, G X Lei, Y L Li, D Zhang, W D Shen, S M Yang, Y H Qiao
Neurofeedback therapy is a fast-growing field of tinnitus treatment, which is a new type of biofeedback therapy. In the past, the "muscle tone" and "blood flow" were used as feedback signals in biofeedback therapy to treat tinnitus, however there was no long-term follow-up report. Instead, neurofeedback therapy utilizes EEG (electroencephalogram) as the feedback signal, which is also called EEG biofeedback therapy. At present, most treatments of tinnitus only record subjective measures of patients as evaluation indicators, whereas neurofeedback therapy is more convincing for using comprehensive evaluation including changes of brain wave as objective indicators and subjective measures of patients...
February 2018: Journal of Clinical Otorhinolaryngology, Head, and Neck Surgery
https://www.readbyqxmd.com/read/29764918/a-feed-forward-relay-integrates-the-regulatory-activities-of-bicoid-and-orthodenticle-via-sequential-binding-to-suboptimal-sites
#4
Rhea R Datta, Jia Ling, Jesse Kurland, Xiaotong Ren, Zhe Xu, Gozde Yucel, Jackie Moore, Leila Shokri, Isabel Baker, Timothy Bishop, Paolo Struffi, Rimma Levina, Martha L Bulyk, Robert J Johnston, Stephen Small
The K50 (lysine at amino acid position 50) homeodomain (HD) protein Orthodenticle (Otd) is critical for anterior patterning and brain and eye development in most metazoans. In Drosophila melanogaster , another K50HD protein, Bicoid (Bcd), has evolved to replace Otd's ancestral function in embryo patterning. Bcd is distributed as a long-range maternal gradient and activates transcription of a large number of target genes, including otd Otd and Bcd bind similar DNA sequences in vitro, but how their transcriptional activities are integrated to pattern anterior regions of the embryo is unknown...
May 15, 2018: Genes & Development
https://www.readbyqxmd.com/read/29758941/from-cerebrospinal-fluid-to-blood-the-third-wave-of-fluid-biomarkers-for-alzheimer-s-disease
#5
Henrik Zetterberg, Kaj Blennow
The past five years have seen an enormous development in the field of fluid biomarkers for Alzheimer's disease (AD) and related disorders. The proteins that constitute the foundation for the cerebrospinal fluid (CSF) tests for the classical AD pathologies are now being explored as potential blood-based biomarkers, thanks to the recent implementation of ultrasensitive measurement technologies in academic and clinical laboratories worldwide. The current blood-derived data are still less clear than those obtained using CSF as the sample type, but independent research suggests that there are biomarker signals in blood that relate to plaque and tangle pathologies in AD, which are relevant to explore further...
May 11, 2018: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/29758338/how-do-children-fall-asleep-a-high-density-eeg-study-of-slow-waves-in-the-transition-from-wake-to-sleep
#6
Mathilde Spiess, Giulio Bernardi, Salome Kurth, Maya Ringli, Flavia M Wehrle, Oskar G Jenni, Reto Huber, Francesca Siclari
INTRODUCTION: Slow waves, the hallmarks of non-rapid eye-movement (NREM) sleep, are thought to reflect maturational changes that occur in the cerebral cortex throughout childhood and adolescence. Recent work in adults has revealed evidence for two distinct synchronization processes involved in the generation of slow waves, which sequentially come into play in the transition to sleep. In order to understand how these two processes are affected by developmental changes, we compared slow waves between children and young adults in the falling asleep period...
May 17, 2018: NeuroImage
https://www.readbyqxmd.com/read/29754170/cardiac-support-device-asd-delivers-bone-marrow-stem-cells-repetitively-to-epicardium-has-promising-curative-effects-in-advanced-heart-failure
#7
Shizhong Yue, Muhammad Naveed, Wang Gang, Dingding Chen, Zhijie Wang, Feng Yu, Xiaohui Zhou
Ventricular restraint therapy is a non-transplant surgical option for the management of advanced heart failure (HF). To augment the therapeutic applications, it is hypothesized that ASD shows remarkable capabilities not only in delivering stem cells but also in dilated ventricles. Male SD rats were divided into four groups (n = 6): normal, HF, HF + ASD, and HF + ASD-BMSCs respectively. HF was developed by left anterior descending (LAD) coronary artery ligation in all groups except normal group. Post-infarcted electrocardiography (ECG) and brain natriuretic peptide (BNP) showed abnormal heart function in all model groups and HF + ASD-BMSCs group showed significant improvement as compared to other HF, HF + ASD groups on day 30...
May 12, 2018: Biomedical Microdevices
https://www.readbyqxmd.com/read/29753957/brainstem-blood-brain-barrier-disruption-using-focused-ultrasound-a-demonstration-of-feasibility-and-enhanced-doxorubicin-delivery
#8
Saira Alli, Carlyn A Figueiredo, Brian Golbourn, Nesrin Sabha, Megan Yijun Wu, Andrew Bondoc, Amanda Luck, Daniel Coluccia, Colin Maslink, Christian Smith, Heiko Wurdak, Kullervo Hynynen, Meaghan O'Reilly, James T Rutka
Magnetic Resonance Image-guided Focused Ultrasound (MRgFUS) has been used to achieve transient BBB opening without tissue injury. Delivery of a targeted ultrasonic wave causes an interaction between administered microbubbles and the capillary bed resulting in enhanced vessel permeability. The use of MRgFUS in the brainstem has not previously been shown but could provide value in the treatment of tumours such as Diffuse Intrinsic Pontine Glioma (DIPG) where the intact BBB has contributed to the limited success of chemotherapy...
May 10, 2018: Journal of Controlled Release: Official Journal of the Controlled Release Society
https://www.readbyqxmd.com/read/29751200/biosensor-based-selective-detection-of-zika-virus-specific-antibodies-in-infected-individuals
#9
Gustavo Cabral-Miranda, Ana R Cardoso, Luis C S Ferreira, M Goreti F Sales, Martin F Bachmann
Zika virus (ZIKV) recently emerged as a global threat subsequent to its global spread because it induces microencephaly and other brain damages in infants born to infected mothers. Epidemiological monitoring of infection has been hampered by the absence of reliable serological tests capable to distinguish between ZIKV and other Flavivirus infections, in particular Dengue virus (DENV). As both viruses are transmitted by the same mosquito-species, their distributions largely overlap and reliable serological distinction between the viruses is essential...
May 1, 2018: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/29747374/use-of-the-stockwell-transform-in-the-detection-of-p300-evoked-potentials-with-low-cost-brain-sensors
#10
Alan F Pérez-Vidal, Carlos D Garcia-Beltran, Albino Martínez-Sibaja, Rubén Posada-Gómez
The evoked potential is a neuronal activity that originates when a stimulus is presented. To achieve its detection, various techniques of brain signal processing can be used. One of the most studied evoked potentials is the P300 brain wave, which usually appears between 300 and 500 ms after the stimulus. Currently, the detection of P300 evoked potentials is of great importance due to its unique properties that allow the development of applications such as spellers, lie detectors, and diagnosis of psychiatric disorders...
May 9, 2018: Sensors
https://www.readbyqxmd.com/read/29746845/detection-of-stress-and-the-effects-of-central-nervous-system-depressants-by-gastrointestinal-smooth-muscle-electromyography-in-wakeful-rats
#11
K F Szűcs, G Grosz, M Süle, A Sztojkov-Ivanov, E Ducza, A Márki, A Kothencz, L Balogh, R Gáspár
AIMS: The altered gut-brain interaction can be in the background of functional gastrointestinal (GI) disorders. In the GI tract, the slow-wave myoelectric signals can be detected by electromyography (EMG). The aims of our study were to follow up the stress induced alteration in the GI tract by smooth muscle EMG in wakeful rats. MAIN METHODS: The GI tract myoelectric activity of male rats was measured by an electrode pair under the abdominal skin, the responses were detected and analyzed by a software using fast Fourier transformation...
May 7, 2018: Life Sciences
https://www.readbyqxmd.com/read/29740553/development-and-validation-of-exercise-rehabilitation-program-for-cognitive-function-and-activity-of-daily-living-improvement-in-mild-dementia-elderly
#12
Mi-Ri Choi, Ji-Youn Kim, Eun-Surk Yi
We investigated the effect of exercise rehabilitation based on fine motor movement for the elderly with mild dementia. Using electroencephalogram (EEG), the change of brain wave of them based on fine motor movement and comparing the improvement level of cognitive ability and performance capability in daily living activity was recorded. The subjects were the elderly with mild dementia living in a sanatorium in Incheon city. Mini-Mental Status Examination, activity of daily living (ADL), and the influence on depression were examined...
April 2018: Journal of Exercise Rehabilitation
https://www.readbyqxmd.com/read/29739092/satb2-associated-syndrome-a-case-report-of-a-de-novo-nonsense-mutation-in-satb2-from-china-and-review-of-literature
#13
Hong-Yan Lv, Rui-Jiang Zheng, Qiu-Li Wang, Peng-Shun Ren, Lin-Hong Jin, Xiu-Ling Gu, Lian-Xiang Li
BACKGROUND: To study the clinical and genetic features from a Chinese child with SATB2-associated syndrome (SAS) and review of literature. METHODS: The girl, 2 years 3 months old, is admitted to the Department of Pediatric Rehabilitation in our hospital. This patient has mental retardation, language development disorder, cleft palate II0, micrognathia, malocclusion, irritability and bilateral oblique palpebral fissure as a clinical manifestation and is treated for 3 months...
April 1, 2018: Clinical Laboratory
https://www.readbyqxmd.com/read/29736384/a-technology-developed-from-concept-of-acupuncture-and-meridian-system-the-clinical-effect-of-bioceramic-resonance-on-psychological-related-sleep-disturbance-with-findings-on-questionnaire-eeg-and-fmri
#14
Lei Zhang, Paul Chan, Zhong Min Liu, Yi Li Tseng, C Will Chen, Ming Tse Lin, Wing P Chan, Ting-Kai Leung
Under the concept of meridian channels that belongs to traditional Chinese medicine, BIOCERAMIC Resonance (BR) has already been applied to many clinical medical research projects with functions mimicking of traditional acupuncture. Forty-five patients were recruited with chronic sleep disorders; 36 patients were given, applied to the device with BIOCERAMIC material and sound rhythm on chest skin surface; 9 patients were included as controls. All study participants completed a sleep pattern and quality of life questionnaire (assessment on psychological and physical causes of sleep disturbances), which was repeated before, during and after treatment...
April 2018: Journal of Traditional and Complementary Medicine
https://www.readbyqxmd.com/read/29734943/low-mood-visual-hallucinations-and-falls-heralding-the-onset-of-rapidly-progressive-probable-sporadic-creutzfeldt-jakob-disease-in-a-73-year-old-a-case-report
#15
Daniel Martin Klotz, Rose Sarah Penfold
BACKGROUND: Creutzfeldt-Jakob disease is a rare and rapidly fatal neurodegenerative disease. Since clinicians may see only very few cases during their professional career, it is important to be familiar with the clinical presentation and progression, to perform appropriate investigations, and allow for quick diagnosis. CASE PRESENTATION: A 73-year-old British Caucasian woman presented with acute confusion of 2 weeks' duration on a background of low mood following a recent bereavement...
May 8, 2018: Journal of Medical Case Reports
https://www.readbyqxmd.com/read/29731401/adverse-effects-of-common-sports-and-recreational-activities-on-male-reproduction
#16
REVIEW
Kush Panara, John M Masterson, Luis F Savio, Ranjith Ramasamy
CONTEXT: Male factor infertility plays a significant role in infertility. Many factors have been associated with male infertility; however, the link between many sports and recreational factors and male reproduction remains poorly characterized. OBJECTIVE: To evaluate the current literature regarding the impact of many common sports and recreational factors on male reproduction. EVIDENCE ACQUISITION: A comprehensive PubMed and Embase search for relevant articles published between 1970 and 2017 was performed by combining the following search terms: male, sports (including individual sports), traumatic brain injury, sauna, hot tub, fertility, erectile dysfunction, varicocele, environment, cell phone, and laptop computer...
May 3, 2018: European Urology Focus
https://www.readbyqxmd.com/read/29729527/the-hippocampus-in-depth-a-sublayer-specific-perspective-of-entorhinal-hippocampal-function
#17
REVIEW
Manuel Valero, Liset Menendez de la Prida
Understanding how the brain represents events is a fundamental question in neuroscience. The entorhinal-hippocampal system is central to such representations, which are severely compromised in some neurological diseases. In spite of much progress, a comprehensive, integrated view of spatial, temporal and other aspects of episodic representation remains elusive. Here, we review recent data on the role of cell-type specific entorhinal inputs which excite deep and superficial CA1 pyramidal cells by direct and indirect pathways...
May 2, 2018: Current Opinion in Neurobiology
https://www.readbyqxmd.com/read/29726812/how-the-stomach-and-the-brain-work-together-at-rest
#18
Giuseppina Porciello, Alessandro Monti, Salvatore Maria Aglioti
Low-frequency electrical waves in the stomach seem to be synchronised with the activity of a newly discovered resting-state network in the human brain.
May 4, 2018: ELife
https://www.readbyqxmd.com/read/29726629/high-precision-voluntary-movements-are-largely-independent-from-preceding-vertex-potentials-elicited-by-sudden-sensory-events
#19
M Kilintari, R J Bufacchi, G Novembre, Y Guo, P Haggard, G D Iannetti
Salient and sudden sensory events generate a remarkably large response in the human brain, the vertex wave (VW) The VW is coupled with a modulation of a voluntarily-applied isometric force Here, we tested whether the VW is also related to executing high-precision movements The execution of a voluntary high-precision movement remains relatively independent of the brain activity reflected by the preceding VW The apparent relationship between the positive VW and the movement onset time is explained by goal-related but stimulus-independent neural activities These results highlight the need of considering such goal-related but stimulus-independent neural activities when attempting to relate ERP amplitude with perceptual and behavioural performance ABSTRACT: Salient and fast-rising sensory events generate a large biphasic vertex wave (VW) in the human electroencephalogram (EEG)...
May 4, 2018: Journal of Physiology
https://www.readbyqxmd.com/read/29723670/circuit-mechanisms-of-hippocampal-reactivation-during-sleep
#20
Paola Malerba, Maxim Bazhenov
The hippocampus is important for memory and learning, being a brain site where initial memories are formed and where sharp wave - ripples (SWR) are found, which are responsible for mapping recent memories to long-term storage during sleep-related memory replay. While this conceptual schema is well established, specific intrinsic and network-level mechanisms driving spatio-temporal patterns of hippocampal activity during sleep, and specifically controlling off-line memory reactivation are unknown. In this study, we discuss a model of hippocampal CA1-CA3 network generating spontaneous characteristic SWR activity...
April 30, 2018: Neurobiology of Learning and Memory
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