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https://www.readbyqxmd.com/read/28650574/injection-of-microporous-annealing-particle-map-hydrogels-in-the-stroke-cavity-reduces-gliosis-and-inflammation-and-promotes-npc-migration-to-the-lesion
#1
Lina R Nih, Elias Sideris, S Thomas Carmichael, Tatiana Segura
With the number of deaths due to stroke decreasing, more individuals are forced to live with crippling disability resulting from the stroke. To date, no therapeutics exist after the first 4.5 h after the stroke onset, aside from rest and physical therapy. Following stroke, a large influx of astrocytes and microglia releasing proinflammatory cytokines leads to dramatic inflammation and glial scar formation, affecting brain tissue's ability to repair itself. Pathological conditions, such as a stroke, trigger neural progenitor cells (NPCs) proliferation and migration toward the damaged site...
June 26, 2017: Advanced Materials
https://www.readbyqxmd.com/read/28650560/uncovering-the-role-of-brain-derived-neurotrophic-factor-bdnf-trkb-signaling-in-head-and-neck-malignancies
#2
REVIEW
Juliana Kern de Moraes, Vivian Petersen Wagner, Felipe Paiva Fonseca, Pablo Agustin Vargas, Caroline Brunetto de Farias, Rafael Roesler, Manoela Domingues Martins
Brain-derived neurotrophic factor (BDNF) is a member of the neurotrophin family of growth factors that was first known as responsible for sustain the growth, function and plasticity of neural cells. BDNF exerts its effects by binding to the tyrosine kinase receptor B (TrkB). The BDNF/TrkB axis has been reported to be overexpressed in several neurogenic and non-neurogenic tumors. Its higher expression was associated with a poor prognosis to patients affected by different human malignancies, tumor growth, invasion and metastasis; epithelial-mesenchymal transition (EMT) and resistance to chemotherapy...
June 26, 2017: Journal of Oral Pathology & Medicine
https://www.readbyqxmd.com/read/28648570/brain-behavioral-adaptability-predicts-response-to-cognitive-behavioral-therapy-for-emotional-disorders-a-person-centered-event-related-potential-study
#3
Jonathan P Stange, Annmarie MacNamara, Amy E Kennedy, Greg Hajcak, K Luan Phan, Heide Klumpp
Single-trial-level analyses afford the ability to link neural indices of elaborative attention (such as the late positive potential [LPP], an event-related potential) with downstream markers of attentional processing (such as reaction time [RT]). This approach can provide useful information about individual differences in information processing, such as the ability to adapt behavior based on attentional demands ("brain-behavioral adaptability"). Anxiety and depression are associated with maladaptive information processing implicating aberrant cognition-emotion interactions, but whether brain-behavioral adaptability predicts response to psychotherapy is not known...
June 22, 2017: Neuropsychologia
https://www.readbyqxmd.com/read/28642684/ferulic-acid-improves-functional-recovery-after-acute-spinal-cord-injury-in-rats-by-inducing-hypoxia-to-inhibit-microrna-590-and-elevate-vascular-endothelial-growth-factor-expressions
#4
Zhenjie Li, Shengyun Wang, Wenfang Li, Hongbin Yuan
Spinal cord injury (SCI) is the leading cause of paralysis, disability and even death in severe cases, and neural stem cells (NSCs) transplant has been employed for repairing SCI. Ferulic acid (FA) is able to promote neurogenesis in various stem cell therapies. We aimed to investigate the effect of FA on NSC transplant therapy, and the underlying mechanism, in improving functional recovery in SCI rat model. A rat model of SCI was established, which then received transplant of NSCs with or without FA pre-treatment...
2017: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/28642175/subventricular-zone-involvement-characterised-by-dti-in-glioblastoma
#5
Bart Rj van Dijken, Jiun-Lin Yan, Natalie R Boonzaier, Chao Li, Peter Jan van Laar, Anouk van der Hoorn, Stephen J Price
BACKGROUND: Glioblastomas have a poor prognosis, possibly due to a subpopulation of therapy resistant stem cells within the heterogeneous glioblastoma. As the subventricular zone is the main source of neural stem cells, we aimed at characterising the subventricular zone using DTI to demonstrate subventricular zone involvement in glioblastoma. METHODS: We prospectively included 93 patients with primary glioblastomas who underwent preoperative DTI. The non-enhancing high FLAIR signal was used to describe the infiltrative tumour margin...
June 19, 2017: World Neurosurgery
https://www.readbyqxmd.com/read/28641524/the-bio-psycho-social-dimension-in-women-s-sexual-desire-argumentum-ad-novitatem
#6
Nur Syazwani Roslan, Nik Ruzyanei Nik Jaafar, Hatta Sidi, Najwa Baharuddin, Jaya Kumar, Srijit Das, Nik Hazlina Nik Hussein
Sexual desire includes complex motivation and drive. In the context of biological and cognitive-emotive state art of science, it is often a neglected field in medicine. With regard to the treatment, study on women's sexual function received less attention compared to the men's sexuality. In the past, this endeavor was relatively not well disseminated in the scientific community. Recently, there was a revolutionized surge of drug targets available to treat women with low sexual desire. It is timely to review the relevant biological approach, especially in the context of pharmacotherapy to understand this interesting clinical entity which was modulated by numerous interactive psychosocial inter-play and factors...
June 21, 2017: Current Drug Targets
https://www.readbyqxmd.com/read/28641519/neural-stem-cells-and-human-induced-pluripotent-stem-cells-to-model-rare-cns-diseases
#7
Lidia De Filippis, Cristina Zalfa, Daniela Ferrari
Despite the great effort spent over the last decades to unravel the pathological mechanisms underpinning the development of central nervous system disorders, most of them remain still unclear. In particular, the study of rare brain diseases is hurdled by the lack of post-mortem samples and of reliable epidemiological studies, thus the setting of in vitro modeling systems appears essential to dissect the puzzle of genetic and environmental alterations affecting neural cells viability and functionality The isolation and expansion in vitro of embryonic (ESC) and fetal neural stem cells (NSC) from human tissue has efficiently allowed to model several neurological diseases "in a dish" and has also provided a novel platform to test potential therapeutic strategies in a pre-clinical setting...
June 15, 2017: CNS & Neurological Disorders Drug Targets
https://www.readbyqxmd.com/read/28641497/a-neuropsychiatric-analysis-of-the-cotard-delusion
#8
Aradhana Sahoo, Keith A Josephs
Cotard's syndrome, a condition in which the patient denies his or her own existence or the existence of body parts, is a rare illness that has been reported in association with several neuropsychiatric diagnoses. The majority of published literature on the topic is in the form of case reports, many of which are several years old. The authors evaluated associated diagnoses, neuroimaging, and treatments recorded in patients diagnosed with Cotard's syndrome at their institution. A search of the Mayo Clinic database for patients with mention of signs and symptoms associated with Cotard's in their records between 1996 and 2016 was conducted...
June 23, 2017: Journal of Neuropsychiatry and Clinical Neurosciences
https://www.readbyqxmd.com/read/28641333/validation-of-brain-angiotensin-system-blockade-as-a-novel-drug-target-in-pharmacological-treatment-of-neuropsychiatric-disorders
#9
Dominik Wincewicz, Jan J Braszko
Retreat in psychiatric drug development results in innovative medication decline that might be at least partially overcome by adjunct therapy. New evidence from clinical studies has shown a possible role for brain Renin-Angiotensin System (RAS) in both affective and psychotic disorders. Simultaneously, rapidly accumulating data from basic studies indicate effectiveness of central RAS blockade in much broader range of neuropsychiatric disease. Recent findings implicate brain RAS, especially Angiotensin II (Ang II), in neural pathophysiology of mental disorders through neuroendocrine modulation and effects on neurotransmitter release, mostly noradrenaline, acetylcholine and dopamine...
June 22, 2017: Pharmacopsychiatry
https://www.readbyqxmd.com/read/28641164/protective-effects-of-flavonoids-against-alzheimer-s-disease-related-neural-dysfunctions
#10
REVIEW
Mahsa Bakhtiari, Yunes Panahi, Javad Ameli, Behrad Darvishi
Senile ages of human life is mostly associated with developmental of several neurological complicated conditions including decreased cognition and reasoning, increased memory loss and impaired language performance. Alzheimer's disease (AD) is the most prevalent neural disorder associated with dementia, consisting of about 70% of dementia reported cases. Failure of currently approved chemical anti-AD therapeutic agents has once again brought up the idea of administering naturally occurring compounds as effective alternative and/or complementary regimens in AD treatment...
June 19, 2017: Biomedicine & Pharmacotherapy, Biomédecine & Pharmacothérapie
https://www.readbyqxmd.com/read/28640440/frequency-dependent-inhibition-of-bladder-function-by-saphenous-nerve-stimulation-in-anesthetized-rats
#11
Zainab Moazzam, Paul B Yoo
AIMS: Percutaneous tibial nerve stimulation (PTNS) is an effective neuromodulation therapy for treating overactive bladder (OAB). The therapeutic effects are achieved by repeatedly applying electrical stimulation through a percutaneous needle electrode that is used to target the tibial nerve (TN). Anatomical studies indicate there can be multiple saphenous nerve (SAFN) branches located near the site of electrical stimulation, and therefore we investigated the possibility of evoking a bladder-inhibitory reflex by electrically activating the SAFN...
June 22, 2017: Neurourology and Urodynamics
https://www.readbyqxmd.com/read/28639464/neurophysiological-analysis-of-the-genesis-mechanism-of-eeg-during-the-interictal-and-ictal-periods-using-a-multiple-neural-masses-model
#12
Zhen Ma
Electroencephalography (EEG) is an important method to investigate the neurophysiological mechanism underlying epileptogenesis to identify new therapies for the treatment of epilepsy. The neurophysiologically based neural mass model (NMM) can build a bridge between signal processing and neurophysiology, which can be used as a platform to explore the neurophysiological mechanism of epileptogenesis. Most EEG signals cannot be regarded as the outputs of a single NMM with identical model parameters. The outputs of NMM are simple because the diversity of neural signals in the same NMM is ignored...
April 11, 2017: International Journal of Neural Systems
https://www.readbyqxmd.com/read/28639376/mfat-1-transgene-protects-cultured-adult-neural-stem-cells-against-cobalt-chloride-mediated-hypoxic-injury-by-activating-nrf2-are-pathways
#13
Junfeng Yu, Haiyuan Yang, Bin Fang, Zhengwei Zhang, Ying Wang, Yifan Dai
Ischemic stroke is a devastating neurological disorder and one of the leading causes of death and serious disability in adults. Adult neural stem cell (NSC) replacement therapy is a promising treatment for both structural and functional neurological recovery. However, for the treatment to work, adult NSCs must be protected against hypoxic-ischemic damage in the ischemic penumbra. In the present study, we aimed to investigate the neuroprotective effects of the mfat-1 transgene on cobalt chloride (CoCl2 )-induced hypoxic-ischemic injury in cultured adult NSCs as well as its underlying mechanisms...
June 22, 2017: Journal of Neuroscience Research
https://www.readbyqxmd.com/read/28638359/neural-correlates-of-outcome-of-the-psychotherapy-compared-to-antidepressant-therapy-in-anxiety-and-depression-disorders-a-meta-analysis
#14
REVIEW
Navkiran Kalsi, Daniela Altavilla, Renata Tambelli, Paola Aceto, Cristina Trentini, Chiara Di Giorgio, Carlo Lai
The most prevalent mental disorders, anxiety and depression, are commonly associated with structural and functional changes in the fronto-limbic brain areas. The clinical trials investigating patients with affective disorders showed different outcome to different treatments such as psychotherapy or pharmacotherapy. It is, however, still unexplored how these interventions approach affect the functional brain. This meta-analysis aims to compare the effects of psychotherapy compared to antidepressant therapy on functional brain activity in anxiety and depression disorders...
2017: Frontiers in Psychology
https://www.readbyqxmd.com/read/28638249/circulatory-levels-of-c-x-c-motif-chemokine-ligands-1-9-and-10-are-elevated-in-patients-with-ischemic-stroke
#15
Masoud Amin, Alireza Vakilian, Mohammad Hossein Mahmoodi, Gholamhossein Hassanshahi, Soudeh Khanamani Falahati-Pour, Maryam Rafiei Dolatabadi, Ali Esmaeili Nadimi
OBJECTIVE: Inflammation plays a significant role in the development of ischemic stroke. CXC chemokines play pleiotropic roles in prolonged leukocyte locomotion, astrocyte migration/activation, and neural attachment/sprouting in response to focal stroke. In this study, we aimed to explore the changes in serum levels of three chemokines, C-X-C motif chemokine ligand 1 (CXCL1), C-X-C motif chemokine ligand 9 (CXCL9), and C-X-C motif chemokine ligand 10 (CXCL10), in ischemic stroke patients at the time of admission and before discharge from the hospital ward...
June 2017: Eurasian Journal of Medicine
https://www.readbyqxmd.com/read/28637759/role-of-jnk-pathway-in-varicella-zoster-virus-lytic-infection-and-reactivation
#16
Sravya Kurapati, Tomohiko Sadaoka, Labchan Rajbhandari, Balaji Jagdish, Priya Shukla, Yong Jun Kim, Gabsang Lee, Jeffrey I Cohen, Arun Venkatesan
Mechanisms of neuronal infection by varicella-zoster virus (VZV) have been challenging to study due to the relatively strict human tropism of the virus and the paucity of tractable experimental models. Cellular mitogen activated protein kinases (MAPKs) have been shown to play a role in VZV infection of non-neuronal cells, with distinct consequences on infectivity in differing cell types. Here, we utilize several human neuronal culture systems to investigate the role of one such MAPK, the c-Jun N-terminal kinase (JNK), in VZV lytic infection and reactivation...
June 21, 2017: Journal of Virology
https://www.readbyqxmd.com/read/28637240/tfeb-activation-restores-migration-ability-to-tsc1-deficient-adult-neural-stem-progenitor-cells
#17
Alessandro Magini, Alice Polchi, Danila Di Meo, Giuseppina Mariucci, Krizia Sagini, Federico De Marco, Tommaso Cassano, Stefano Giovagnoli, Diego Dolcetta, Carla Emiliani
Tuberous sclerosis complex (TSC) is an autosomal dominant genetic disorder caused by mutations in either of two genes, TSC1 or TSC2, resulting in the constitutive activation of the mammalian target of rapamycin complex 1 (mTORC1). mTOR inhibitors are now considered the treatment of choice for TSC disease. A major pathological feature of TSC is the development of subependymal giant cell astrocytomas (SEGAs) in the brain. Nowadays, it is thought that SEGAs could be a consequence of aberrant aggregation and migration of neural stem/progenitor cells (NSPCs)...
June 14, 2017: Human Molecular Genetics
https://www.readbyqxmd.com/read/28636928/neurovascular-toxicity-of-n-methyl-d-aspartate-is-markedly-enhanced-in-the-developing-mouse-central-nervous-system
#18
Sudhakar Vadivelu, Kui Xu, Vanja Tolj, Rahul Rege, Lindsay Darkins, Karthik Vishwanath
Penumbral perfusion is critical to brain viability. Proximal arterial occlusion and deep brain stroke has variable effect on cortical dysfunction. Cortical microvessel collaterals may be recruited and at times sufficient for partial parenchymal perfusion. Postnatal neural and endothelial cells are markedly vulnerable to glutamate excitotoxicity. Early vascular cell stress may promote partial protective neural preconditioning though postnatally a developmental window of the cerebral microvasculature may be particularly vulnerable to injury...
June 18, 2017: Neuroscience Letters
https://www.readbyqxmd.com/read/28634087/treatment-with-levetiracetam-improves-cognition-in-a-ketamine-rat-model-of-schizophrenia
#19
Ming Teng Koh, Yi Shao, Sharon Rosenzweig-Lipson, Michela Gallagher
Imbalance in neural excitation and inhibition is associated with behavioral dysfunction in individuals with schizophrenia and at risk for this illness. We examined whether targeting increased neural activity with the antiepileptic agent, levetiracetam, would benefit memory performance in a preclinical model of schizophrenia that has been shown to exhibit hyperactivity in the hippocampus. Adult rats exposed to ketamine subchronically during late adolescence showed impaired hippocampal-dependent memory performance...
June 17, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28632204/successful-pharmacotherapy-for-the-treatment-of-severe-feeding-aversion-with-mechanistic-insights-from-cross-species-neuronal-remodeling
#20
W G Sharp, A G Allen, K H Stubbs, K K Criado, R Sanders, C E McCracken, R G Parsons, L Scahill, S L Gourley
Pediatric feeding disorders affect up to 5% of children, causing severe food intake problems that can result in serious medical and developmental outcomes. Behavioral intervention (BI) is effective in extinguishing feeding aversions, and also expert-dependent, time/labor-intensive and not well understood at a neurobiological level. Here we first conducted a double-blind, placebo-controlled trial comparing BI with BI plus d-cycloserine (DCS). DCS is a partial N-methyl-d-aspartate (NMDA) receptor agonist shown to augment extinction therapies in multiple anxiety disorders...
June 20, 2017: Translational Psychiatry
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