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https://www.readbyqxmd.com/read/27922089/elderly-patients-have-an-altered-gut-brain-axis-regardless-of-the-presence-of-cirrhosis
#1
Jasmohan S Bajaj, Vishwadeep Ahluwalia, Joel L Steinberg, Sarah Hobgood, Peter A Boling, Michael Godschalk, Saima Habib, Melanie B White, Andrew Fagan, Edith A Gavis, Dinesh Ganapathy, Phillip B Hylemon, Karen E Stewart, Raffi Keradman, Eric J Liu, Jessica Wang, Patrick M Gillevet, Masoumeh Sikaroodi, F Gerard Moeller, James B Wade
Cognitive difficulties manifested by the growing elderly population with cirrhosis could be amnestic (memory-related) or non-amnestic (memory-unrelated). The underlying neuro-biological and gut-brain changes are unclear in this population. We aimed to define gut-brain axis alterations in elderly cirrhotics compared to non-cirrhotic individuals based on presence of cirrhosis and on neuropsychological performance. Age-matched outpatients with/without cirrhosis underwent cognitive testing (amnestic/non-amnestic domains), quality of life (HRQOL), multi-modal MRI (fMRI go/no-go task, volumetry and MR spectroscopy), blood (inflammatory cytokines) and stool collection (for microbiota)...
December 6, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27897267/increasing-bmi-is-associated-with-reduced-expression-of-p-glycoprotein-abcb1-gene-in-the-human-brain-with-a-stronger-association-in-african-americans-than-caucasians
#2
J Vendelbo, R H Olesen, J K Lauridsen, J Rungby, J E Kleinman, T M Hyde, A Larsen
The efflux pump, p-glycoprotein, controls bioavailability and excretion of pharmaceutical compounds. In the blood-brain barrier, p-glycoprotein regulates the delivery of pharmaceutical substances to the brain, influencing efficacy and side effects for some drugs notably antipsychotics. Common side effects to antipsychotics include obesity and metabolic disease. Polymorphisms in the ABCB1 gene coding for p-glycoprotein are associated with more severe side effects to neuro-pharmaceuticals as well as weight gain, indicating a potential link between p-glycoprotein function and metabolic regulation...
November 29, 2016: Pharmacogenomics Journal
https://www.readbyqxmd.com/read/27894933/parasitism-personality-and-cognition-in-fish
#3
REVIEW
I Barber, A B Mora, E M Payne, K L Weinersmith, A Sih
It is well established that parasites can have profound effects on the behaviour of host organisms, and that individual differences in behaviour can influence susceptibility to parasite infections. Recently, two major themes of research have developed. First, there has been a growing interest in the proximate, mechanistic processes underpinning parasite-associated behaviour change, and the interactive roles of the neuro-, immune, and other physiological systems in determining relationships between behaviour and infection susceptibility...
November 25, 2016: Behavioural Processes
https://www.readbyqxmd.com/read/27869134/assessing-sabu-serum-anti-bisa-ular-the-sole-indonesian-antivenom-a-proteomic-analysis-and-neutralization-efficacy-study
#4
Choo Hock Tan, Jia Lee Liew, Kae Yi Tan, Nget Hong Tan
Serum Anti Ular Bisa (SABU) is the only snake antivenom produced locally in Indonesia; however, its effectiveness has not been rigorously evaluated. This study aimed to assess the protein composition and neutralization efficacy of SABU. SDS polyacrylamide gel electrophoresis, size-exclusion liquid chromatography and shotgun proteomics revealed that SABU consists of F(ab')2 but a significant amount of dimers, protein aggregates and contaminant albumins. SABU moderately neutralized Calloselasma rhodostoma venom (potency of 12...
November 21, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27863709/the-neuronal-basis-of-copper-induced-modulation-of-anxiety-state-in-rat
#5
Abbaoui Abdellatif, E L Hiba Omar, Gamrani Halima
Recently, studies have provided strong evidence indicating the involvement of trace elements in the physiopathology of psychiatric disorders, particularly anxiety. We aimed, through the present study, to describe the effect of acute exposure to Cu (10mg/kg BW) on anxiety state together with the serotoninergic and dopaminergic systems in rat by means of neurobehavioral tests (elevated plus maze, dark light box) and immunohistochemistry using anti-serotonin (5HT) and anti-tyrosine hydroxylase (TH). Our data report that Cu enhanced 5HT innervation in the dorsal raphe nucleus (DRN) together with a loss of TH expression within the ventral tegmental area (VTA), Substantia nigra compacta (SNc) and their subsequent outputs including the medial forebrain bundle (MFB) and striatum...
November 15, 2016: Acta Histochemica
https://www.readbyqxmd.com/read/27861322/laser-ablation-of-newly-diagnosed-malignant-gliomas-a-meta-analysis
#6
Michael E Ivan, Alireza M Mohammadi, Nicoleta De Deugd, Joshua Reyes, Gregor Rodriguez, Ashish Shah, Gene H Barnett, Ricardo J Komotar
BACKGROUND: Magnetic resonance-guided laser-interstitial thermotherapy (MR-LITT) is a minimally invasive technique that shows promise in neuro-oncology because of its superiority in delivering precise minimally invasive thermal energy with minimal collateral damage. OBJECTIVE: In this analysis, we investigate initial data on the use of MR-LITT in the treatment of newly diagnosed high-grade gliomas. METHODS: With the use of the PubMed, OVID, and Google-scholar database systems, a comprehensive search of the English literature was performed...
December 2016: Neurosurgery
https://www.readbyqxmd.com/read/27852968/-treatment-of-metacognitive-impairments-in-schizophrenia-the-metacognitive-training
#7
Zita Fekete, Edit Vass, Alexander Kancsev, Ildikó Kuritárné Szabó
In the recent years plenty of therapeutic treatment methods have been developed, aimed at neurocognitive impairments in schizophrenia. These trainingprograms can hold up promising results in the improvement of neurocognitive functions. Nevertheless the generalisation on the daily life is not perspicuous. A reason for it might be the supposition, that further factors such as metacognition and social cognition may play a mediator role between neurocognition and functional outcomes. As a result, many socialcognitive remediation methods and programs have emerged targeting the impairment of deficits both in the field of neuro- and social cognition and deficits of metacognition...
2016: Psychiatria Hungarica: A Magyar Pszichiátriai Társaság Tudományos Folyóirata
https://www.readbyqxmd.com/read/27848056/an-evaluation-of-health-related-quality-of-life-in-patients-with-systemic-lupus-erythematosus-using-promis-and-neuro-qol
#8
Jin-Shei Lai, Jennifer L Beaumont, Sally E Jensen, Karen Kaiser, David L Van Brunt, Amy H Kao, Shih-Yin Chen
Systemic lupus erythematosus (SLE) is a multi-organ chronic autoimmune disease that can negatively affect patients' health-related quality of life (HRQOL). This study evaluated HRQOL of SLE patients using questionnaires from the Patient-Reported Outcomes Measurement Information System (PROMIS) and Quality of Life in Neurological Disorders (Neuro-QoL). Individuals with SLE completed an online survey consisting of the PROMIS-29 health profile, PROMIS Psychosocial Illness Impact-Negative, and Neuro-QoL Applied Cognition...
November 15, 2016: Clinical Rheumatology
https://www.readbyqxmd.com/read/27837568/psynteract-a-flexible-cross-platform-open-framework-for-interactive-experiments
#9
Felix Henninger, Pascal J Kieslich, Benjamin E Hilbig
We introduce a novel platform for interactive studies, that is, any form of study in which participants' experiences depend not only on their own responses, but also on those of other participants who complete the same study in parallel, for example a prisoner's dilemma or an ultimatum game. The software thus especially serves the rapidly growing field of strategic interaction research within psychology and behavioral economics. In contrast to all available software packages, our platform does not handle stimulus display and response collection itself...
November 11, 2016: Behavior Research Methods
https://www.readbyqxmd.com/read/27829190/frontal-brain-asymmetry-childhood-maltreatment-and-low-grade-inflammation-at-midlife
#10
Camelia E Hostinar, Richard J Davidson, Eileen K Graham, Daniel K Mroczek, Margie E Lachman, Teresa E Seeman, Carien M van Reekum, Gregory E Miller
Frontal EEG asymmetry is thought to reflect variations in affective style, such that greater relative right frontal activity at rest predicts enhanced emotional responding to threatening or negative stimuli, and risk of depression and anxiety disorders. A diathesis-stress model has been proposed to explain how this neuro-affective style might predispose to psychopathology, with greater right frontal activity being a vulnerability factor especially under stressful conditions. Less is known about the extent to which greater relative right frontal activity at rest might be associated with or be a diathesis for deleterious physical health outcomes...
January 2017: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/27825385/neurogenomics-and-the-role-of-a-large-mutational-target-on-rapid-behavioral-change
#11
Craig E Stanley, Rob J Kulathinal
BACKGROUND: Behavior, while complex and dynamic, is among the most diverse, derived, and rapidly evolving traits in animals. The highly labile nature of heritable behavioral change is observed in such evolutionary phenomena as the emergence of converged behaviors in domesticated animals, the rapid evolution of preferences, and the routine development of ethological isolation between diverging populations and species. In fact, it is believed that nervous system development and its potential to evolve a seemingly infinite array of behavioral innovations played a major role in the successful diversification of metazoans, including our own human lineage...
November 8, 2016: Biology Direct
https://www.readbyqxmd.com/read/27817030/gene-expression-of-proteins-of-the-vesicle-cycle-in-the-striatum-and-motor-cortex-under-functional-failure-of-nigrostriatal-system
#12
E R Mingazov, M V Ugrumov
Degeneration of dopaminergic neurons in the substantia nigra and the decrease in the dopamine level in the striatum lead to dysfunctions of motor behavior. This is accompanied by dysregulation of neuro-transmission in glutamatergic neurons of the motor cortex and GABA-ergic neurons of the striatum. It is shown that dysregulation of the gene expression of vesicle cycle proteins in neurons of the motor cortex occurs at an early (presymptomatic) stage of degeneration of the nigrostriatal system, and in more severe degeneration (symptomatic stage) the level of gene expression of vesicle cycle proteins in the striatum decreases...
September 2016: Doklady. Biochemistry and Biophysics
https://www.readbyqxmd.com/read/27816615/nocturnal-urinary-disorders-in-multiple-sclerosis-clinical-and-urodynamic-study-of-309-patients
#13
Elsa Mauruc, Amandine Guinet-Lacoste, Lætitia Falcou, Philippe Manceau, Delphine Verollet, Frédérique Le Breton, Gérard Amarenco
PURPOSE: The aim of this study was to describe nocturia with or without leakage in a population of patients with multiple sclerosis. MATERIALS AND METHODS: This is a retrospective, single center study of 309 patients with multiple sclerosis who were followed at an experienced neurourology center between 2011 and 2013. All patients had daytime urinary symptoms associated with this disorder. Among the patients with nocturia 2 groups were defined, including those with isolated nocturia but without nocturnal urinary incontinence and patients with nocturia associated with nocturnal urinary incontinence...
November 2, 2016: Journal of Urology
https://www.readbyqxmd.com/read/27816462/-lower-urinary-tract-dysfunction-in-normal-pressure-hydrocephalus-review-of-the-literature
#14
E Bey, B Nicot, O Casez, L Le Normand
INTRODUCTION: Lower urinary tract dysfunction in normal pressure hydrocephalus has received little attention from the scientific community. The aim of this review article was to discuss diagnostic and therapeutic options for these patients. SOURCES: A literature review of MedLine publications on urinary incontinence in normal pressure hydrocephalus was conducted. The following keywords were used: "hydrocephalus, normal pressure" and "bladder dysfunction" or "urinary incontinence" or "overactive bladder" or "urinary bladder, neurogenic"...
December 2016: Progrès en Urologie
https://www.readbyqxmd.com/read/27816346/-neuro-langerhans-cell-histiocytosis
#15
Loïc Le Guennec, Nadine Martin-Duverneuil, Karima Mokhtari, Maria Santiago-Ribeiro, Eléonore Bayen, Antoine Del Cul, Daniel Delgadillo, Aurélie Kas, Carine Courtillot, Julien Haroche, Fleur Cohen, Jean Donadieu, Khê Hoang-Xuan, Ahmed Idbaih
Langerhans cell histiocytosis (LCH) is a rare multisystemic disease. LCH is characterized by proliferation of myeloid progenitors with altered differentiation program and similar phenotypic features to epidermal dendritic cells termed Langerhans cell. LCH cells express CD1a+ and langerin and exhibit BRAF V600E mutation in ∼50% of cases. Neurological involvement or neuro-LCH is observed in 5 to 10% of cases. Three subtypes of neuro-LCH are individualized. The tumor type, accounting for 45% of neuro-LCH, affect mainly young adults...
November 2, 2016: La Presse Médicale
https://www.readbyqxmd.com/read/27815337/development-of-original-metabolically-stable-apelin-17-analogs-with-diuretic-and-cardiovascular-effects
#16
Romain Gerbier, Rodrigo Alvear-Perez, Jean-Francois Margathe, Adrien Flahault, Pierre Couvineau, Ji Gao, Nadia De Mota, Hubert Dabire, Bo Li, Emilie Ceraudo, Annette Hus-Citharel, Lucie Esteoulle, Cynthia Bisoo, Marcel Hibert, Alain Berdeaux, Xavier Iturrioz, Dominique Bonnet, Catherine Llorens-Cortes
Apelin, a (neuro)vasoactive peptide, plays a prominent role in controlling cardiovascular functions and water balance. Because the in vivo apelin half-life is in the minute range, we aimed to identify metabolically stable apelin-17 (K17F) analogs. We generated P92 by classic chemical substitutions and LIT01-196 by original addition of a fluorocarbon chain to the N terminus of K17F. Both analogs were much more stable in plasma (half-life >24 h for LIT01-196) than K17F (4.6 min). Analogs displayed a subnanomolar affinity for the apelin receptor and behaved as full agonists with regard to cAMP production, ERK phosphorylation, and apelin receptor internalization...
November 4, 2016: FASEB Journal: Official Publication of the Federation of American Societies for Experimental Biology
https://www.readbyqxmd.com/read/27812676/cardiac-cachexia-perspectives-for-prevention-and-treatment
#17
Marina Politi Okoshi, Rafael Verardino Capalbo, Fernando G Romeiro, Katashi Okoshi
Cachexia is a prevalent pathological condition associated with chronic heart failure. Its occurrence predicts increased morbidity and mortality independent of important clinical variables such as age, ventricular function, or heart failure functional class. The clinical consequences of cachexia are dependent on both weight loss and systemic inflammation, which accompany cachexia development. Skeletal muscle wasting is an important component of cachexia; it often precedes cachexia development and predicts poor outcome in heart failure...
October 27, 2016: Arquivos Brasileiros de Cardiologia
https://www.readbyqxmd.com/read/27810006/high-performance-computing-in-neuroscience-for-data-driven-discovery-integration-and-dissemination
#18
Kristofer E Bouchard, James B Aimone, Miyoung Chun, Thomas Dean, Michael Denker, Markus Diesmann, David D Donofrio, Loren M Frank, Narayanan Kasthuri, Chirstof Koch, Oliver Ruebel, Horst D Simon, Friedrich T Sommer, Prabhat
Opportunities offered by new neuro-technologies are threatened by lack of coherent plans to analyze, manage, and understand the data. High-performance computing will allow exploratory analysis of massive datasets stored in standardized formats, hosted in open repositories, and integrated with simulations.
November 2, 2016: Neuron
https://www.readbyqxmd.com/read/27808006/radiologic-detectability-of-the-cochlear-implant-electrode-fixation-clip-using-cone-beam-computed-tomography
#19
Victor Helmstaedter, Eva Bueltmann, Thomas Lenarz, Magnus Teschner
INTRODUCTION: With the aim of preventing migration of cochlear implantation electrodes in the postoperative course, an electrode fixation clip has been developed. It is characterized by two clips of double U-geometry. The bone fixation clip will be clamped on the bony incus bridge, and the electrode fixation clip is clamped to the electrode lead. Although made of titanium, the detectability in radiologic imaging appears limited. MATERIALS AND METHODS: Six patients, who received a cochlear implant between August 2014 and March 2015, were retrospectively analyzed for the detectability of the Med-El Electrode Fixation Clip in postoperative cone beam CT scans...
November 3, 2016: Cochlear Implants International
https://www.readbyqxmd.com/read/27806074/a-novel-robot-system-integrating-biological-and-mechanical-intelligence-based-on-dissociated-neural-network-controlled-closed-loop-environment
#20
Yongcheng Li, Rong Sun, Yuechao Wang, Hongyi Li, Xiongfei Zheng
We propose the architecture of a novel robot system merging biological and artificial intelligence based on a neural controller connected to an external agent. We initially built a framework that connected the dissociated neural network to a mobile robot system to implement a realistic vehicle. The mobile robot system characterized by a camera and two-wheeled robot was designed to execute the target-searching task. We modified a software architecture and developed a home-made stimulation generator to build a bi-directional connection between the biological and the artificial components via simple binomial coding/decoding schemes...
2016: PloS One
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