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https://www.readbyqxmd.com/read/28431905/dynamic-interhemispheric-competition-and-vestibulo-cortical-control-in-humans-a-theoretical-proposition
#1
REVIEW
Qadeer Arshad
Neuroscientific research has made a concerted effort to determine cortical localisation using various functional imaging techniques. This approach has undoubtedly yielded important novel anatomical knowledge, albeit at times contradictory, regarding the structural organisation of the vestibular cortex. Unfortunately however, this knowledge has not translated to our understanding regarding how neural mechanisms control vestibular function. Based upon recent functional imaging, lesion and neuro-physiological data that has demonstrated (i) the close behavioural and neuro-anatomical relationship between cortical processing of vestibular and spatial attention signals, and (ii) that inducing interhemispheric competition can in-turn strongly modulate vestibular function akin to that observed in cortical lesion patients, I herewith propose the hypothesis that vestibular cortical processing is controlled, as per for spatial attention, via dynamic interhemispheric competition...
April 18, 2017: Neuroscience
https://www.readbyqxmd.com/read/28419104/further-characterisation-of-differences-between-tl-and-ab-zebrafish-danio-rerio-gene-expression-physiology-and-behaviour-at-day-5-of-the-larval-stage
#2
Ruud van den Bos, Wouter Mes, Pietro Galligani, Anthony Heil, Jan Zethof, Gert Flik, Marnix Gorissen
Zebrafish (Danio rerio) have become popular as model organism in research. Many strains are readily available, which not only differ morphologically, but also genetically, physiologically and behaviourally. Here, we focus on the AB and Tupfel long-fin (TL) strain for which we have previously shown that adults differ in baseline hypothalamus-pituitary-interrenal (HPI)-axis activity (AB higher than TL) affecting inhibitory avoidance behaviour (absent in AB). To assess whether strain differences are already present in early life stages, we compared baseline HPI-axis related gene expression as well as cortisol levels, (neuro)development related as well as (innate) immune system related gene expression, and light-dark as well as startle behaviour in larvae 5 days post fertilisation...
2017: PloS One
https://www.readbyqxmd.com/read/28369799/effect-of-dental-pulp-stem-cells-in-mptp-induced-old-aged-mice-model
#3
Nareshwaran Gnanasegaran, Vijayendran Govindasamy, Christopher Simon, Quan Fu Gan, Vui King Vincent-Chong, Vasudevan Mani, Kesavanarayanan Krishnan Selvarajan, Vellayan Subramaniam, Sabri Musa, Noor Hayaty Abu Kasim
Parkinson's disease (PD) is a neurodegenerative disease caused by the loss of dopaminergic (DA-ergic) neurons in the substantia nigra (SN) and represent as a huge threat to the geriatric population. Cell-replacement therapies (CRTs) have been proposed as a promising strategy to slow down or replace neuronal loss. Among the widely available cell sources, dental pulp stem cells (DPSCs) portray as an attractive source primarily due to their neural crest origin, ease of tissue procurement and less ethical hurdles MATERIALS AND METHODS: We first demonstrated the in vitro differentiation ability of DPSCs towards DA-ergic-like cells before evaluating their neuro-protection/neuro-restoration capacities in MPTP-induced mice...
March 30, 2017: European Journal of Clinical Investigation
https://www.readbyqxmd.com/read/28351736/musculoskeletal-modelling-of-human-ankle-complex-estimation-of-ankle-joint-moments
#4
Prashant K Jamwal, Shahid Hussain, Yun Ho Tsoi, Mergen H Ghayesh, Sheng Quan Xie
BACKGROUND: A musculoskeletal model for the ankle complex is vital in order to enhance the understanding of neuro-mechanical control of ankle motions, diagnose ankle disorders and assess subsequent treatments. Motions at the human ankle and foot, however, are complex due to simultaneous movements at the two joints namely, the ankle joint and the subtalar joint. The musculoskeletal elements at the ankle complex, such as ligaments, muscles and tendons, have intricate arrangements and exhibit transient and nonlinear behaviour...
March 23, 2017: Clinical Biomechanics
https://www.readbyqxmd.com/read/28336920/xiaoyaosan-exerts-anxiolytic-like-effects-by-down-regulating-the-tnf-%C3%AE-jak2-stat3-pathway-in-the-rat-hippocampus
#5
Xiao-Juan Li, Qing-Yu Ma, You-Ming Jiang, Xiao-Hui Bai, Zhi-Yi Yan, Qun Liu, Qiu-Xia Pan, Yue-Yun Liu, Jia-Xu Chen
Although the anxiolytic-like effects of Xiaoyaosan, a Chinese herbal formula, have been described in many previous studies, its underlying mechanism remains undefined. The cytokine tumour necrosis factor-α (TNF-α) and its closely associated janus kinase 2 (JAK2)-signal transducer and activator of transcription (STAT3) signalling pathway regulate the neuro-inflammatory response in the brain, thus participating in the development of anxiety. Our purpose was to investigate whether the anxiolytic-like effects of Xiaoyaosan are related to the TNF-α/JAK2-STAT3 pathway in the hippocampus...
March 23, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28262852/repeated-acute-oral-exposure-to-cannabis-sativa-impaired-neurocognitive-behaviours-and-cortico-hippocampal-architectonics-in-wistar-rats
#6
A Imam, M S Ajao, O B Akinola, M I Ajibola, A Ibrahim, A Amin, W I Abdulmajeed, Z A Lawal, A Ali-Oluwafuyi
The most abused illicit drug in both the developing and the developed world is Cannabis disposing users to varying forms of personality disorders. However, the effects of cannabis on cortico-hippocampal architecture and cognitive behaviours still remain elusive.  The present study investigated the neuro-cognitive implications of oral cannabis use in rats. Eighteen adult Wistar rats were randomly grouped to three. Saline was administered to the control rats, cannabis (20 mg/kg) to the experimental group I, while Scopolamine (1 mg/kg...
March 6, 2017: Nigerian Journal of Physiological Sciences: Official Publication of the Physiological Society of Nigeria
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
#7
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 alternative stress coping styles is poor. As 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 under basal and acute stress conditions for previously characterised proactive and reactive Atlantic salmon...
April 15, 2017: Journal of Experimental Biology
https://www.readbyqxmd.com/read/28164735/ameliorating-effect-of-celastrus-paniculatus-standardized-extract-and-its-fractions-on-3-nitropropionic-acid-induced-neuronal-damage-in-rats-possible-antioxidant-mechanism
#8
Jai Malik, Maninder Karan, Rachna Dogra
CONTEXT: Celastrus paniculatus Wild. (Celasteraceae) (CP) is a well-known Ayurvedic 'Medhya Rasayana' (nervine tonic), used extensively as a neuro-protective and memory enhancer, and in different central nervous system disorders. OBJECTIVE: To evaluate the effect of CP against 3-nitropropionic acid (3-NP) induced Huntington's disease (HD) like symptoms in Wistar male rats. MATERIALS AND METHODS: The ethanol extract of CP seeds (CPEE), prepared by maceration, was standardized on the basis of linoleic acid content (6...
December 2017: Pharmaceutical Biology
https://www.readbyqxmd.com/read/28118492/melatonin-prevents-mitochondrial-dysfunction-and-promotes-neuroprotection-by-inducing-autophagy-during-oxaliplatin-evoked-peripheral-neuropathy
#9
Aparna Areti, Prashanth Komirishetty, Manasaveena Akuthota, Rayaz A Malik, Ashutosh Kumar
Oxaliplatin, an organoplatinum compound, is used in the treatment of colorectal cancer, but its clinical use can be limited due to the development of peripheral neuropathy. Whilst mitochondrial dysfunction has been implicated as a major pathomechanism for oxaliplatin-induced neurotoxicity, the prevention of autophagy may also aggravate neuronal cell death. Melatonin, a well-known mitoprotectant and autophagy inducer, was used to examine its neuroprotective role in oxaliplatin-induced peripheral neuropathy (OIPN)...
January 24, 2017: Journal of Pineal Research
https://www.readbyqxmd.com/read/28108415/how-does-mindfulness-modulate-self-regulation-in-pre-adolescent-children-an-integrative-neurocognitive-review
#10
REVIEW
Rebekah Jane Kaunhoven, Dusana Dorjee
Pre-adolescence is a key developmental period in which complex intrinsic volitional methods of self-regulation are acquired as a result of rapid maturation within the brain networks underlying the self-regulatory processes of attention control and emotion regulation. Fostering adaptive self-regulation skills during this stage of development has strong implications for physical health, emotional and socio-economic outcomes during adulthood. There is a growing interest in mindfulness-based programmes for pre-adolescents with initial findings suggesting self-regulation improvements, however, neurodevelopmental studies on mindfulness with pre-adolescents are scarce...
January 17, 2017: Neuroscience and Biobehavioral Reviews
https://www.readbyqxmd.com/read/28077286/assessment-of-neuroanatomical-and-behavioural-effects-of-in-ovo-methylmercury-exposure-in-zebra-finches-taeniopygia-guttata
#11
Maria S Yu, Margaret L Eng, Tony D Williams, Mélanie F Guigueno, John E Elliott
Methylmercury (MeHg) readily crosses the blood brain barrier and is a known neuro-toxicant. MeHg accumulation in the brain causes histopathological alterations, neurobehavioral changes, and impairments to cognitive motor functions in mammalian models. However, in birds the neurotoxic effects of MeHg on the developing pre-hatching brain and consequent behavioral alterations in adult birds have not received much attention. Moreover, passerine birds are poorly represented in MeHg neurotoxicology studies in comparison to other avian orders...
January 7, 2017: Neurotoxicology
https://www.readbyqxmd.com/read/28057531/resting-state-brain-connectivity-patterns-before-eventual-relapse-into-cocaine-abuse
#12
M Berlingeri, D Losasso, A Girolo, E Cozzolino, T Masullo, M Scotto, M Sberna, G Bottini, E Paulesu
According to recent theories, drug addicted patients suffer of an impaired response inhibition and salience attribution (I-RISA) together with a perturbed connectivity between the nuclei accumbens (NAcs) and the orbito-prefrontal (oPFC) and dorsal prefrontal (dPFC) cortices, brain regions associated with motivation and cognitive control. To empirically test these assumptions, we evaluated the (neuro)psychological trait and the functional organization of the resting state brain networks associated with the NAcs in 18 former cocaine abusers (FCAs), while being in drug abstinence since 5 months...
January 3, 2017: Behavioural Brain 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/28012396/antidepressant-like-effects-of-hydrolysable-tannins-of-terminalia-catappa-leaf-extract-via-modulation-of-hippocampal-plasticity-and-regulation-of-monoamine-neurotransmitters-subjected-to-chronic-mild-stress-cms
#14
Y Chandrasekhar, E M Ramya, K Navya, G Phani Kumar, K R Anilakumar
Terminalia catappa L. belonging to Combretaceae family is a folk medicine, known for its multiple pharmacological properties, but the neuro-modulatory effect of TC against chronic mild stress was seldom explored. The present study was designed to elucidate potential antidepressant-like effect of Terminalia cattapa (leaf) hydro-alcoholic extract (TC) by using CMS model for a period of 7 weeks. Identification of hydrolysable tannins was done by using LC-MS. After the CMS exposure, mice groups were administered with imipramine (IMP, 10mg/kg, i...
February 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28009062/cytokine-therapy-mediated-neuroprotection-in-a-friedreich-s-ataxia-mouse-model
#15
Kevin C Kemp, Nadia Cerminara, Kelly Hares, Juliana Redondo, Amelia J Cook, Harry R Haynes, Bronwen R Burton, Mark Pook, Richard Apps, Neil J Scolding, Alastair Wilkins
OBJECTIVES: Friedreich's ataxia is a devastating neurological disease currently lacking any proven treatment. We studied the neuroprotective effects of the cytokines, granulocyte-colony stimulating factor (G-CSF) and stem cell factor (SCF) in a humanized murine model of Friedreich's ataxia. METHODS: Mice received monthly subcutaneous infusions of cytokines while also being assessed at monthly time points using an extensive range of behavioral motor performance tests...
February 2017: Annals of Neurology
https://www.readbyqxmd.com/read/28004351/withania-somnifera-as-a-potential-anxiolytic-and-immunomodulatory-agent-in-acute-sleep-deprived-female-wistar-rats
#16
Taranjeet Kaur, Harpal Singh, Rachana Mishra, Shaffi Manchanda, Muskan Gupta, Vedangana Saini, Anuradha Sharma, Gurcharan Kaur
Sleep is a profound regulator of cellular immunity, and the curtailment of sleep in present day lifestyle leads to disruption of neuro-immune-endocrine interactions. No therapeutic remedy is yet known for the amelioration of detrimental effects caused by sleep deprivation (SD). The current study was aimed to elucidate the effects of acute SD on immune function and its modulation by water extract from leaves of Withania somnifera (ASH-WEX). Three groups of animals, i.e. Vehicle-Undisturbed sleep (VUD), Vehicle-Sleep deprived (VSD) and ASH-WEX fed sleep deprived (WSD) rats were tested for their anxiety-like behaviour and further used for the study of inflammatory and apoptotic markers expression in piriform cortex and hippocampus regions of the brain...
March 2017: Molecular and Cellular Biochemistry
https://www.readbyqxmd.com/read/28000539/comparison-of-smart-and-whim-as-measurement-tools-in-routine-assessment-of-pdoc-patients
#17
Aisling McAleese, Colin F Wilson, Margaret McEvoy, Sheena Caldwell
BACKGROUND: Royal College of Physicians guidelines on PDOC recommended repeated assessments of patients in PDOC are undertaken by skilled clinicians. The Wessex Head Injury Matrix (WHIM) and the Sensory Modality Assessment and Rehabilitation Technique (SMART) are the most commonly used measures within UK. OBJECTIVE: To evaluate the use of WHIM and SMART to identify potential changes in PDOC patients. METHODS: Twelve PDOC patients admitted to a post-acute regional neuro-rehabilitation unit were assessed using WHIM and SMART...
December 21, 2016: Neuropsychological Rehabilitation
https://www.readbyqxmd.com/read/27976933/treatment-of-pain-following-cancer-applying-neuro-immunology-in-rehabilitation-practice
#18
Jo Nijs, Laurence Leysen, Roselien Pas, Nele Adriaenssens, Mira Meeus, Wouter Hoelen, Kelly Ickmans, Niamh Moloney
AIM: Pain is the second most frequent persistent symptom following cancer treatment. This article aims at explaining how the implementation of contemporary pain neuroscience can benefit rehabilitation for adults following cancer treatment within an evidence-based perspective. MATERIALS AND METHODS: Narrative review. RESULTS: First, pain education is an effective but underused strategy for treating cancer related pain. Second, our neuro-immunological understanding of how stress can influence pain highlights the importance of integrating stress management into the rehabilitation approach for patients having cancer-related pain...
December 15, 2016: Disability and Rehabilitation
https://www.readbyqxmd.com/read/27975358/-music-in-health-promotion-and-therapeutic-practice-cultural-theoretical-and-clinical-perspectives
#19
REVIEW
Wolfgang Mastnak
Music can serve as a shelter and music therapy can provide spaces for symbolic experience and the modification of behavioural and cognitive patterns. Explaining the power of music, ancient theories speak of an analogy between music and man. Similar views are also found in modern music therapy such as Sound Work, a voice-body-based model. Complementary to the aspect of analogy, the principle of transformation is of vital importance, such as the transitions between the five elements, the solid organs and the pentatonic scale in Chinese music therapy, for instance...
December 2016: Deutsche Medizinische Wochenschrift
https://www.readbyqxmd.com/read/27934947/opposite-effects-of-high-and-low-frequency-transcranial-random-noise-stimulation-probed-with-visual-motion-adaptation
#20
Gianluca Campana, Rebecca Camilleri, Beatrice Moret, Filippo Ghin, Andrea Pavan
Transcranial random noise stimulation (tRNS) is a recent neuro-modulation technique whose effects at both behavioural and neural level are still debated. Here we employed the well-known phenomenon of motion after-effect (MAE) in order to investigate the effects of high- vs. low-frequency tRNS on motion adaptation and recovery. Participants were asked to estimate the MAE duration following prolonged adaptation (20 s) to a complex moving pattern, while being stimulated with either sham or tRNS across different blocks...
December 9, 2016: Scientific Reports
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