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https://www.readbyqxmd.com/read/27898359/motherhood-and-infant-contact-regulate-neuroplasticity-in-the-serotonergic-midbrain-dorsal-raphe
#1
M Allie Holschbach, Joseph S Lonstein
The adult brain shows remarkable neuroplasticity in response to hormones and the socioemotional modifications that they influence. In females with reproductive and maternal experience, this neuroplasticity includes the birth and death of cells in several forebrain regions involved in maternal caregiving and postpartum affective state. Such plasticity in midbrain sites critical for these behavioral and emotional processes has never been examined, though. By visualizing bromodeoxyuridine (BrdU) to label mitotic cells, NeuroD for neuronal precursors, and TUNEL to identify dying cells, we found that the midbrain dorsal raphe nucleus (DR, the source of most ascending serotoninergic projections) exhibited significant neuroplasticity in response to motherhood...
November 19, 2016: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/27891086/circuits-regulating-pleasure-and-happiness-mechanisms-of-depression
#2
Anton J M Loonen, Svetlana A Ivanova
According to our model of the regulation of appetitive-searching vs. distress-avoiding behaviors, the motivation to display these essential conducts is regulated by two parallel cortico-striato-thalamo-cortical, re-entry circuits, including the core and the shell parts of the nucleus accumbens, respectively. An entire series of basal ganglia, running from the caudate nucleus on one side, to the centromedial amygdala on the other side, controls the intensity of these reward-seeking and misery-fleeing behaviors by stimulating the activity of the (pre)frontal and limbic cortices...
2016: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/27890578/adult-complex-regional-pain-syndrome-type-i-a-narrative-review
#3
REVIEW
Martino Bussa, Adriana Mascaro, Lorena Cuffaro, Simona Rinaldi
Complex regional pain syndrome type I (CRPS I) is a multifactorial painful disorder with a complex pathogenesis. Both peripheral and central mechanisms are involved. Acute CRPS I is considered an exaggerated inflammatory disorder but over time, because of altered function of the sympathetic nervous system, and maladaptive neuroplasticity, CRPS I evolves into a neurological disorder. This review thoroughly describes the pathophysiological aspects of CRPS I and summarizes the potential therapeutic options. The mechanisms and targets of the treatment are different in the early and late stages of the disease...
November 23, 2016: PM & R: the Journal of Injury, Function, and Rehabilitation
https://www.readbyqxmd.com/read/27889412/cannabidiol-reduces-neuroinflammation-and-promotes-neuroplasticity-and-functional-recovery-after-brain-ischemia
#4
Marco Aurélio Mori, Erika Meyer, Ligia Mendes Soares, Humberto Milani, Francisco Silveira Guimarães, Rúbia Maria Weffort de Oliveira
This study investigated the effects of cannabidiol (CBD), a non-psychotomimetic phytochemical present in Cannabis sativa, on the cognitive and emotional impairments induced by bilateral common carotid artery occlusion (BCCAO) in mice. Using a multi-tiered behavioral testing battery during 21days, we found that BCCAO mice exhibited long-lasting functional deficits reflected by increase in anxiety-like behavior (day 9), memory impairments (days 12-18) and despair-like behavior (day 21). Short-term CBD 10mg/kg treatment prevented the cognitive and emotional impairments, attenuated hippocampal neurodegeneration and white matter (WM) injury, and reduced glial response that were induced by BCCAO...
November 23, 2016: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/27888026/priming-theta-burst-stimulation-enhances-motor-cortex-plasticity-in-young-but-not-old-adults
#5
George M Opie, Eleni Vosnakis, Michael C Ridding, Ulf Ziemann, John G Semmler
BACKGROUND: Primary motor cortex (M1) neuroplasticity is reduced in old adults, which may contribute to the motor deficits commonly observed in the elderly. Previous research in young subjects suggests that the neuroplastic response can be enhanced using non-invasive brain stimulation (NIBS), with a larger plastic response observed following priming with both long-term potentiation (LTP) and depression (LTD)-like protocols. However, it is not known if priming stimulation can also modulate plasticity in older adults...
November 17, 2016: Brain Stimulation
https://www.readbyqxmd.com/read/27886522/increase-in-pas-induced-neuroplasticity-after-a-treatment-course-of-intranasal-ketamine-for-depression-report-of-three-cases-from-a-placebo-controlled-trial
#6
Verònica Gálvez, Stevan Nikolin, Kerrie-Anne Ho, Angelo Alonzo, Andrew A Somogyi, Colleen K Loo
BACKGROUND: Animal studies suggest that neural plasticity may play a role in the antidepressant effects of a single ketamine dose. However, the potential effects of repeated ketamine treatments on human neuroplasticity are unknown. METHODS: This pilot RCT study measured plasticity-induced changes before and after a ketamine course, in three treatment-resistant depressed subjects, who were randomized to receive 8 intranasal treatments of 100mg ketamine or 4.5mg midazolam...
November 4, 2016: Comprehensive Psychiatry
https://www.readbyqxmd.com/read/27886079/cerebellar-intermittent-theta-burst-stimulation-and-motor-control-training-in-individuals-with-cervical-dystonia
#7
Lynley V Bradnam, Michelle N McDonnell, Michael C Ridding
BACKGROUND: There is emerging evidence that cervical dystonia is a neural network disorder with the cerebellum as a key node. The cerebellum may provide a target for neuromodulation as a therapeutic intervention in cervical dystonia. OBJECTIVE: This study aimed to assess effects of intermittent theta-burst stimulation of the cerebellum on dystonia symptoms, quality of life, hand motor dexterity and cortical neurophysiology using transcranial magnetic stimulation...
November 23, 2016: Brain Sciences
https://www.readbyqxmd.com/read/27884012/gut-microbiota-bacterial-translocation-and-interactions-with-diet-pathophysiological-links-between-major-depressive-disorder-and-non-communicable-medical-comorbidities
#8
Anastasiya Slyepchenko, Michael Maes, Felice N Jacka, Cristiano A Köhler, Tatiana Barichello, Roger S McIntyre, Michael Berk, Iria Grande, Jane A Foster, Eduard Vieta, André F Carvalho
BACKGROUND: Persistent low-grade immune-inflammatory processes, oxidative and nitrosative stress (O&NS), and hypothalamic-pituitary-adrenal axis activation are integral to the pathophysiology of major depressive disorder (MDD). The microbiome, intestinal compositional changes, and resultant bacterial translocation add a new element to the bidirectional interactions of the gut-brain axis; new evidence implicates these pathways in the patho-aetiology of MDD. In addition, abnormalities in the gut-brain axis are associated with several chronic non-communicable disorders, which frequently co-occur in individuals with MDD, including but not limited to irritable bowel syndrome (IBS), chronic fatigue syndrome (CFS), obesity, and type 2 diabetes mellitus (T2DM)...
November 25, 2016: Psychotherapy and Psychosomatics
https://www.readbyqxmd.com/read/27881040/a-single-dose-of-docosahexaenoic-acid-increases-the-functional-recovery-promoted-by-rehabilitation-following-cervical-spinal-cord-injury-in-the-rat
#9
Zhuo-Hao Liu, Ping Yip, John V Priestley, Adina T Michael-Titus
Task-specific rehabilitation has been shown to promote functional recovery after acute spinal cord injury (SCI). Recently, the omega-3 polyunsaturated fatty acid, docosahexaenoic acid (DHA), has been shown to promote neuroplasticity after SCI. Here, we investigated whether the combination of a single bolus of DHA with rehabilitation can enhance the effect of DHA or rehabilitation therapy in adult injured spinal cord. We found enhanced functional improvement with DHA in combination with rehabilitation compared to either treatment alone in a rat cervical lateral hemisection SCI model...
November 23, 2016: Journal of Neurotrauma
https://www.readbyqxmd.com/read/27878552/strength-and-aerobic-exercises-improve-spatial-memory-in-aging-rats-through-stimulating-distinct-neuroplasticity-mechanisms
#10
Thais Ceresér Vilela, Alexandre Pastoris Muller, Adriani Paganini Damiani, Tamires Pavei Macan, Sabrina da Silva, Paula Bortoluzzi Canteiro, Alisson de Sena Casagrande, Giulia Dos Santos Pedroso, Renata Tiscoski Nesi, Vanessa Moraes de Andrade, Ricardo Aurino de Pinho
Aging is associated with impaired cognition and memory and increased susceptibility to neurodegenerative disorders. Physical exercise is neuroprotective; however, the major evidence of this effect involves studies of only aerobic training in young animals. The benefits of other exercise protocols such as strength training in aged animals remains unknown. Here, we investigated the effect of aerobic and strength training on spatial memory and hippocampal plasticity in aging rats. Aging Wistar rats performed aerobic or strength training for 50 min 3 to 4 days/week for 8 weeks...
November 22, 2016: Molecular Neurobiology
https://www.readbyqxmd.com/read/27872594/modafinil-induces-rapid-onset-behavioral-sensitization-and-cross-sensitization-with-cocaine-in-mice-implications-for-the-addictive-potential-of-modafinil
#11
Raphael Wuo-Silva, Daniela F Fukushiro, André W Hollais, Renan Santos-Baldaia, Elisa Mári-Kawamoto, Laís F Berro, Thaís S Yokoyama, Leonardo B Lopes-Silva, Carolina S Bizerra, Roberta Procópio-Souza, Debora Hashiguchi, Lilian A Figueiredo, Jose L Costa, Roberto Frussa-Filho, Beatriz M Longo
There is substantial controversy about the addictive potential of modafinil, a wake-promoting drug used to treat narcolepsy, proposed as pharmacotherapy for cocaine abuse, and used indiscriminately by healthy individuals due to its positive effects on arousal and cognition. The rapid-onset type of behavioral sensitization (i.e., a type of sensitization that develops within a few hours from the drug priming administration) has been emerged as a valuable tool to study binge-like patterns of drug abuse and the neuroplastic changes that occur quickly after drug administration that ultimately lead to drug abuse...
2016: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/27871848/sonic-hedgehog-promotes-neurite-outgrowth-of-cortical-neurons-under-oxidative-stress-involving-of-mitochondria-and-energy-metabolism
#12
Weiliang He, Lili Cui, Cong Zhang, Xiangjian Zhang, Junna He, Yanzhao Xie, Yanxia Chen
Oxidative stress has been demonstrated to be involved in the etiology of several neurobiological disorders. Sonic hedgehog (Shh), a secreted glycoprotein factor, has been implicated in promoting several aspects of brain remodeling process. Mitochondria may play an important role in controlling fundamental processes in neuroplasticity. However, little evidence is available about the effect and the potential mechanism of Shh on neurite outgrowth in primary cortical neurons under oxidative stress. Here, we revealed that Shh treatment significantly increased the viability of cortical neurons in a dose-dependent manner, which was damaged by hydrogen peroxide (H2O2)...
November 18, 2016: Experimental Cell Research
https://www.readbyqxmd.com/read/27871363/special-issue-respiratory-neuroplasticity
#13
EDITORIAL
David D Fuller, Gordon S Mitchell
No abstract text is available yet for this article.
January 2017: Experimental Neurology
https://www.readbyqxmd.com/read/27869225/noisy-galvanic-vestibular-stimulation-induces-a-sustained-improvement-in-body-balance-in-elderly-adults
#14
Chisato Fujimoto, Yoshiharu Yamamoto, Teru Kamogashira, Makoto Kinoshita, Naoya Egami, Yukari Uemura, Fumiharu Togo, Tatsuya Yamasoba, Shinichi Iwasaki
Vestibular dysfunction causes postural instability, which is prevalent in the elderly. We previously showed that an imperceptible level of noisy galvanic vestibular stimulation (nGVS) can improve postural stability in patients with bilateral vestibulopathy during the stimulus, presumably by enhancing vestibular information processing. In this study, we investigated the after-effects of an imperceptible long-duration nGVS on body balance in elderly adults. Thirty elderly participants underwent two nGVS sessions in a randomised order...
November 21, 2016: Scientific Reports
https://www.readbyqxmd.com/read/27868225/first-language-attrition-induces-changes-in-online-morphosyntactic-processing-and-re-analysis-an-erp-study-of-number-agreement-in-complex-italian-sentences
#15
Kristina Kasparian, Francesco Vespignani, Karsten Steinhauer
First language (L1) attrition in adulthood offers new insight on neuroplasticity and the role of language experience in shaping neurocognitive responses to language. Attriters are multilinguals for whom advancing L2 proficiency comes at the cost of the L1, as they experience a shift in exposure and dominance (e.g., due to immigration). To date, the neurocognitive mechanisms underlying L1 attrition are largely unexplored. Using event-related potentials (ERPs), we examined L1-Italian grammatical processing in 24 attriters and 30 Italian native-controls...
November 7, 2016: Cognitive Science
https://www.readbyqxmd.com/read/27867664/the-case-for-musical-instrument-training-in-cerebral-palsy-for-neurorehabilitation
#16
REVIEW
Ana Alves-Pinto, Varvara Turova, Tobias Blumenstein, Renée Lampe
Recent imaging studies in cerebral palsy (CP) have described several brain structural changes, functional alterations, and neuroplastic processes that take place after brain injury during early development. These changes affect motor pathways as well as sensorimotor networks. Several of these changes correlate with behavioral measures of motor and sensory disability. It is now widely acknowledged that management of sensory deficits is relevant for rehabilitation in CP. Playing a musical instrument demands the coordination of hand movements with integrated auditory, visual, and tactile feedback, in a process that recruits multiple brain regions...
2016: Neural Plasticity
https://www.readbyqxmd.com/read/27865563/sonic-hedgehog-signaling-and-hippocampal-neuroplasticity
#17
REVIEW
Pamela J Yao, Ronald S Petralia, Mark P Mattson
Sonic hedgehog (Shh) is a secreted protein that controls the patterning of neural progenitor cells, and their neuronal and glial progeny, during development. Emerging findings suggest that Shh also has important roles in the formation and plasticity of neuronal circuits in the hippocampus, a brain region of fundamental importance in learning and memory. Shh mediates activity-dependent and injury-induced hippocampal neurogenesis. Activation of Shh receptors in the dendrites of hippocampal neurons engages a trans-neuronal signaling pathway that accelerates axon outgrowth and enhances glutamate release from presynaptic terminals...
November 16, 2016: Trends in Neurosciences
https://www.readbyqxmd.com/read/27864047/apoe%C3%AE%C2%B54-impacts-up-regulation-of-brain-derived-neurotrophic-factor-after-a-six-month-stretch-and-aerobic-exercise-intervention-in-mild-cognitively-impaired-elderly-african-americans-a-pilot-study
#18
Joanne S Allard, Oyonumo Ntekim, Steven P Johnson, Julius S Ngwa, Vernon Bond, Dynell Pinder, Richard F Gillum, Thomas V Fungwe, John Kwagyan, Thomas O Obisesan
Possession of the Apolipoprotein E (APOE) gene ε4 allele is the most prevalent genetic risk factor for late onset Alzheimer's disease (AD). Recent evidence suggests that APOE genotype differentially affects the expression of brain-derived neurotrophic factor (BDNF). Notably, aerobic exercise-induced upregulation of BDNF is well documented; and exercise has been shown to improve cognitive function. As BDNF is known for its role in neuroplasticity and survival, its upregulation is a proposed mechanism for the neuroprotective effects of physical exercise...
November 15, 2016: Experimental Gerontology
https://www.readbyqxmd.com/read/27863706/advanced-neuroimaging-and-its-role-in-predicting-neurodevelopmental-outcomes-in-very-preterm-infants
#19
REVIEW
Nehal A Parikh
Up to 35% of very preterm infants survive with neurodevelopmental impairments (NDI) such as cognitive deficits, cerebral palsy, and attention deficit disorder. Advanced MRI quantitative tools such as brain morphometry, diffusion MRI, magnetic resonance spectroscopy, and functional MRI at term-equivalent age are ideally suited to improve current efforts to predict later development of disabilities. This would facilitate application of targeted early intervention therapies during the first few years of life when neuroplasticity is optimal...
November 15, 2016: Seminars in Perinatology
https://www.readbyqxmd.com/read/27859933/spectroscopic-biomarkers-of-motor-cortex-developmental-plasticity-in-hemiparetic-children-after-perinatal-stroke
#20
Helen L Carlson, Frank P MacMaster, Ashley D Harris, Adam Kirton
Perinatal stroke causes hemiparetic cerebral palsy and lifelong motor disability. Bilateral motor cortices are key hubs within the motor network and their neurophysiology determines clinical function. Establishing biomarkers of motor cortex function is imperative for developing and evaluating restorative interventional strategies. Proton magnetic resonance spectroscopy (MRS) quantifies metabolite concentrations indicative of underlying neuronal health and metabolism in vivo. We used functional magnetic resonance imaging (MRI)-guided MRS to investigate motor cortex metabolism in children with perinatal stroke...
November 17, 2016: Human Brain Mapping
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