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https://www.readbyqxmd.com/read/29036814/curcumin-ameliorates-neuroinflammation-neurodegeneration-and-memory-deficits-in-p25-transgenic-mouse-model-that-bears-hallmarks-of-alzheimer-s-disease
#1
Jeyapriya Raja Sundaram, Charlene Priscilla Poore, Noor Hazim Bin Sulaimee, Tej Pareek, Wei Fun Cheong, Markus R Wenk, Harish C Pant, Sally A Frautschy, Chian-Ming Low, Sashi Kesavapany
Several studies have indicated that neuroinflammation is indeed associated with neurodegenerative disease pathology. However, failures of recent clinical trials of anti-inflammatory agents in neurodegenerative disorders have emphasized the need to better understand the complexity of the neuroinflammatory process in order to unravel its link with neurodegeneration. Deregulation of Cyclin-dependent kinase 5 (Cdk5) activity by production of its hyperactivator p25 is involved in the formation of tau and amyloid pathology reminiscent of Alzheimer's disease (AD)...
October 12, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/29035978/use-of-blood-biomarkers-in-the-assessment-of-sports-related-concussion-a-systematic-review-in-the-context-of-their-biological-significance
#2
Brendan OʼConnell, Áine M Kelly, David Mockler, Matej Orešič, Karl Denvir, Garreth Farrell, Damir Janigro, Fiona Wilson
OBJECTIVES: To critically review current knowledge on the positive and negative predictive value of blood biomarkers for concussion; to illustrate the clinical and biological contexts that help evaluate the use of these markers in sport-related traumatic brain injuries (TBIs). METHODS: This systematic review was performed in accordance with PRISMA guidelines. We reviewed the measurement, clinical utility, endpoint, and biological significance of blood biomarkers in concussion...
October 12, 2017: Clinical Journal of Sport Medicine: Official Journal of the Canadian Academy of Sport Medicine
https://www.readbyqxmd.com/read/29035086/notch-signaling-is-essential-for-maturation-self-renewal-and-tri-differentiation-of-in-vitro-derived-human-neural-stem-cells
#3
Katari Venkatesh, L Vinod Kumar Reddy, Salar Abbas, Madhubanti Mullick, Erfath Thanjeem Begum Moghal, Janardhana Papayya Balakrishna, Dwaipayan Sen
Although neural stem cells (NSCs) have potential applications in treating neurological disorders, much still needs to be understood about the differentiation biology for their successful clinical translation. In this study, we aimed at deriving NSCs from human umbilical cord blood-derived mesenchymal stem cells (hUCB-MSCs) and explored the role of Notch signaling in the differentiation process. The hUCB-MSCs were characterized as per guidelines of the International Society of Cellular Therapy. NSCs were successfully generated from hUCB-MSCs by using epidermal and fibroblast growth factors under serum-free conditions...
October 16, 2017: Cellular Reprogramming
https://www.readbyqxmd.com/read/29034618/altered-electroencephalography-spectral-profiles-in-rats-with-different-patterns-of-experimental-brain-dysplasia
#4
Michal Kielbinski, Zuzanna Setkowicz, Kinga Gzielo, Władysław Węglarz, Krzysztof Janeczko
BACKGROUND: Malformations of cortical development, such as focal cortical dysplasia, are commonly associated with intractable epilepsy. Multiple animal models were created in attempts to recapitulate features of human malformations of cortical development. These manipulations give rise to various focal or diffuse anatomical abnormalities, accompanied by altered susceptibility to epileptic seizures. Both in humans and in models of dysplasia, the question of timing of the initiating insult is important...
October 16, 2017: Birth defects research
https://www.readbyqxmd.com/read/29034506/microglial-induced-m%C3%A3-ller-cell-gliosis-is-attenuated-by-progesterone-in-a-mouse-model-of-retinitis-pigmentosa
#5
Sarah L Roche, Ana M Ruiz-Lopez, Jennifer N Moloney, Ashleigh M Byrne, Thomas G Cotter
Norgestrel, a progesterone analogue, has demonstrated neuroprotective effects in a mouse model of retinitis pigmentosa. Neuroprotection is achieved in part through Norgestrels anti-inflammatory properties, alleviating detrimental microglial activity. Gliosis is a feature of many neurodegenerative diseases of the retina, including retinitis pigmentosa. Müller glia, a type of macroglia found in the retina, are major contributors of gliosis, characterized by the upregulation of glial fibrillary acidic protein (GFAP)...
October 16, 2017: Glia
https://www.readbyqxmd.com/read/29034181/inhibitory-effect-of-yokukansan-on-the-decrease-in-the-hippocampal-excitatory-amino-acid-transporter-eaat2-in-stress-maladaptive-mice
#6
Hiroko Miyagishi, Minoru Tsuji, Atsumi Saito, Kazuya Miyagawa, Hiroshi Takeda
Chronic stress is widely recognized as a risk factor for the development of major depression and anxiety disorders. Recently, we reported that yokukansan (YKS), a traditional Japanese herbal medicine, alleviated emotional abnormality in stress-maladaptive mice. The aim of the present study was to examine the effect of YKS on the expression of excitatory amino acid transporter (EAAT) 1-4 in the prefrontal cortex and hippocampus in stress-maladaptive mice. Mice were chronically exposed to inadaptable stress, i...
October 2017: Journal of Traditional and Complementary Medicine
https://www.readbyqxmd.com/read/29033949/microarray-analysis-identifies-the-potential-role-of-long-non-coding-rna-in-regulating-neuroinflammation-during-japanese-encephalitis-virus-infection
#7
Yunchuan Li, Hao Zhang, Bibo Zhu, Usama Ashraf, Zheng Chen, Qiuping Xu, Dengyuan Zhou, Bohan Zheng, Yunfeng Song, Huanchun Chen, Jing Ye, Shengbo Cao
Japanese encephalitis virus (JEV) is the leading cause of epidemic encephalitis worldwide. JEV-induced neuroinflammation is characterized by profound neuronal cells damage accompanied by activation of glial cells. Albeit long non-coding RNAs (lncRNAs) have been emerged as important regulatory RNAs with profound effects on various biological processes, it is unknown how lncRNAs regulate JEV-induced inflammation. Here, using microarray approach, we identified 618 lncRNAs and 1,007 mRNAs differentially expressed in JEV-infected mice brain...
2017: Frontiers in Immunology
https://www.readbyqxmd.com/read/29033188/ppp1cc-is-associated-with-astrocyte-and-microglia-proliferation-after-traumatic-spinal-cord-injury-in-rats
#8
Xiaojuan Liu, Shen Huang, Chun Liu, Xia Liu, Yuntian Shen, Zhiming Cui
Reactive astrogliosis and microgliosis after spinal cord injury (SCI) contribute to glial scar formation that impedes axonal regeneration. The mechanisms underlying reactive astrocyte and microglia proliferation upon injury remain partially understood. Protein phosphatase 1, catalytic subunit, gamma isozyme (PPP1CC) participates in cell proliferation, differentiation and apoptosis. However, the expression and functions of PPP1CC following SCI are still unknown. In this study, an acute spinal cord contusion injury model in adult rats was established to investigate the potential role of PPP1CC during the pathological process of SCI...
September 28, 2017: Pathology, Research and Practice
https://www.readbyqxmd.com/read/29032758/multifaceted-effects-of-delta-opioid-receptors-and-dadle-in-diseases-of-the-nervous-system
#9
Jea-Young Lee, M Grant Liska, Marci Crowley, Kaya Xu, Sandra A Acosta, Cesar V Borlongan, Vivian A Guedes
The opioid system is considered a potential therapeutic target in a variety of neurological disorders. Delta opioid receptors (DOPs) are broadly expressed in the brain, and their activation protects cells from hypoxic/ischemic insults by counteracting disruptions of ionic homeostasis and initiating neuroprotective pathways. The DOP agonist D-Ala2-D-Leu2-Enkephalin (DADLE) promotes neuronal survival, mitigates apoptotic pathways, and protects neurons and glial cells from ischemia-induced cell death, thus making DADLE a promising therapeutic option for stroke...
October 10, 2017: Current Drug Discovery Technologies
https://www.readbyqxmd.com/read/29032126/weekly-follow-up-of-acute-lesions-in-three-early-multiple-sclerosis-patients-using-mr-spectroscopy-and-diffusion
#10
Gabriel Kocevar, Claudio Stamile, Salem Hannoun, Jean-Amédée Roch, Françoise Durand-Dubief, Sandra Vukusic, François Cotton, Dominique Sappey-Marinier
OBJECT: Pathophysiological mechanisms underlying multiple sclerosis (MS) lesion formation, including inflammation, demyelination/remyelination and axonal damage, and their temporal evolution are still not clearly understood. To this end, three acute white matter lesions were monitored using a weekly multimodal magnetic resonance (MR) protocol. MATERIALS AND METHODS: Three untreated patients with early relapsing-remitting MS and one healthy control subject were followed weekly for two months...
October 12, 2017: Journal of Neuroradiology. Journal de Neuroradiologie
https://www.readbyqxmd.com/read/29032011/sitagliptin-enhances-the-neuroprotective-effect-of-pregabalin-against-pentylenetetrazole-induced-acute-epileptogenesis-in-mice-implication-of-oxidative-inflammatory-apoptotic-and-autophagy-pathways
#11
Manar A Nader, Hayam Ateyya, Mohamed El-Shafey, Nagla A El-Sherbeeny
The current investigation aimed at studying the anti-epileptogenic effect of sitagliptin. The possible effect of the drug in combination with pregabalin in pentylenetetrazole (PTZ)- induced seizures was studied. In addition, the postulated mechanisms that could mediate such effect were explored namely, suppression of oxidative stress and neuro-inflammatory markers, autophagy and apoptosis. Seven days prior to PTZ (60 mg/kg, sc) injection, mice were treated with sitagliptin (5, 15, and 60 mg/kg, twice daily, orally) or pregabalin (30 mg/kg, once daily, orally) or their combination...
October 11, 2017: Neurochemistry International
https://www.readbyqxmd.com/read/29031901/als-and-ftd-insights-into-the-disease-mechanisms-and-therapeutic-targets
#12
Rajka M Liscic
Amyotrophic lateral sclerosis (ALS) and frontotemporal lobar degeneration (FTLD) are neurodegenerative disorders, related by signs of deteriorating motor and cognitive functions, and short survival. The causes are still largely unknown and no effective treatment currently exists. It has been shown that FTLD may coexist with ALS. The overlap between ALS and frontotemporal dementia (FTD), the clinical syndrome associated with FTLD, occurs at clinical, genetic, and pathological levels. The hallmark proteins of the pathognomonic inclusions are SOD-1, TDP-43 or FUS, rarely the disease is caused by mutations in the respective genes...
October 11, 2017: European Journal of Pharmacology
https://www.readbyqxmd.com/read/29031858/involvement-of-integrin-%C3%AE-1-fak-signaling-in-the-analgesic-effects-induced-by-glial-cell-line-derived-neurotrophic-factor-in-neuropathic-pain
#13
Hong-Jun Wang, Ge Song, Jian Liang, Yuan-Yuan Gao, Cun-Jin Wang
Treatment of neuropathic pain (NP) continues to be a clinical challenge and the underlying mechanisms of NP remain elusive. More evidence suggests that glial cell line-derived neurotrophic factor (GDNF) has potent anti-nociceptive effects on NP, but the underlying mechanisms are still largely unknown. Recent data have shown that integrin β1 plays an important part in NP induction, and that the activity of integrin β1 signaling is associated with the phosphorylation of the conserved threonines in the cytoplasmic domain and recruitment of focal adhesion kinase (FAK) to the integrin β1 tail and phosphorylation...
October 12, 2017: Brain Research Bulletin
https://www.readbyqxmd.com/read/29031851/constitutive-ret-signaling-leads-to-long-lasting-expression-of-amphetamine-induced-place-conditioning-via-elevation-of-mesolimbic-dopamine
#14
Jaakko Kopra, Marian Villarta-Aguilera, Mari Savolainen, Samo Weingerl, Timo T Myöhänen, Saara Rannanpää, Michael F Salvatore, Jaan-Olle Andressoo, T Petteri Piepponen
Addictive drugs enhance dopamine release in the striatum, which can lead to compulsive drug-seeking after repeated exposure. Glial cell line-derived neurotrophic factor (GDNF) is an important regulator of midbrain dopamine neurons, and may play a mechanistic role in addiction-related behaviors. To elucidate the components of GDNF-signaling that contribute to addiction-related behaviors of place preference and its extinction, we utilized two genetically modified GDNF mouse models in an amphetamine-induced conditioned place preference (CPP) paradigm and evaluated how the behavioral findings correlate with dopamine signaling in the dorsal and ventral striatum...
October 12, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/29031644/a-preliminary-evaluation-of-glial-cell-line-derived-neurotrophic-factor-gdnf-levels-in-cerebrospinal-fluid-across-various-gestational-ages-and-clinical-conditions-of-the-neonate
#15
Rahul Rajkumar, Divya Mamilla, Bhavana Bhaya, Theresa Czech, Esther Kisseih, Arun Saini, Nitin Chouthai
BACKGROUND: This study aims to investigate glial cell derived neurotrophic factor (GDNF) levels in newborns' umbilical cord blood and cerebrospinal fluid across various perinatal growth parameters and clinical conditions. METHODS: Cord blood from 20 newborns and 58 residual CSF samples (stored after completion of clinical testing) were collected. GDNF levels were determined using GDNF ELISA kits from R&D Systems in triplicates with appropriate controls to eliminate background...
October 11, 2017: International Journal of Developmental Neuroscience
https://www.readbyqxmd.com/read/29030688/neurotrophic-function-of-phytochemicals-for-neuroprotection-in-aging-and-neurodegenerative-disorders-modulation-of-intracellular-signaling-and-gene-expression
#16
REVIEW
Makoto Naoi, Keiko Inaba-Hasegawa, Masayo Shamoto-Nagai, Wakako Maruyama
Bioactive compounds in food and beverages have been reported to promote health and prevent age-associated decline in cognitive, motor and sensory activities, and emotional function. Phytochemicals, a ubiquitous class of plant secondary metabolites, protect neuronal cells by interaction with cellular activities, in addition to the antioxidant and anti-inflammatory function. In aging and age-associated neurodegenerative disorders, phytochemicals protect neuronal cells by neurotrophic factor-mimic activity, in addition to suppression of apoptosis signaling in mitochondria...
October 13, 2017: Journal of Neural Transmission
https://www.readbyqxmd.com/read/29030217/impact-of-peripheral-immune-status-on-central-molecular-responses-to-facial-nerve-axotomy
#17
D O Setter, E M Runge, N D Schartz, F M Kennedy, B L Brown, K P McMillan, W M Miller, K M Shah, M M Haulcomb, V M Sanders, K J Jones
When facial nerve axotomy (FNA) is performed on immunodeficient recombinase activating gene-2 knockout (RAG-2(-/-)) mice, there is greater facial motoneuron (FMN) death relative to wild type (WT) mice. Reconstituting RAG-2(-/-) mice with whole splenocytes rescues FMN survival after FNA, and CD4+ T cells specifically drive immune-mediated neuroprotection. Evidence suggests that immunodysregulation may contribute to motoneuron death in amyotrophic lateral sclerosis (ALS). Immunoreconstitution of RAG-2(-/-) mice with lymphocytes from the mutant superoxide dismutase (mSOD1) mouse model of ALS revealed that the mSOD1 whole splenocyte environment suppresses mSOD1 CD4+ T cell-mediated neuroprotection after FNA...
October 10, 2017: Brain, Behavior, and Immunity
https://www.readbyqxmd.com/read/29030175/characterization-of-the-pleiotropic-roles-of-sonic-hedgehog-during-retinal-regeneration-in-adult-zebrafish
#18
Jennifer L Thomas, Gregory W Morgan, Kaylee M Dolinski, Ryan Thummel
In contrast to the mammalian retina, the zebrafish retina possesses the ability to regenerate. This is primarily accomplished through Müller glial cells, which, upon damage, re-enter the cell cycle to form retinal progenitors. The progenitors continue to proliferate as they migrate to the area of damage and ultimately differentiate into new neurons. The purpose of this study was to characterize the expression and function of Sonic Hedgehog (Shh) during regeneration of the adult zebrafish retina. Expression profiling of Shh pathway genes showed a significant upregulation of expression associated with stages of progenitor proliferation and neuronal differentiation...
October 10, 2017: Experimental Eye Research
https://www.readbyqxmd.com/read/29030124/targeting-nitric-oxide-and-nmda-receptor-associated-pathways-in-treatment-of-high-grade-glial-tumors-hypotheses-for-nitro-memantine-and-nitrones
#19
REVIEW
Meric A Altinoz, İlhan Elmaci
Glioblastoma multiforme (GBM) is a devastating brain cancer with no curative treatment. Targeting Nitric Oxide (NO) and glutamatergic pathways may help as adjunctive treatments in GBM. NO at low doses promotes tumorigenesis, while at higher levels (above 300 nM) triggers apoptosis. Gliomas actively secrete high amounts of glutamate which activates EGR signaling and mediates degradation of peritumoral tissues via excitotoxic injury. Memantine inhibits NMDA-subtype of glutamate receptors (NMDARs) and induces autophagic death of glioma cells in vitro and blocks glioma growth in vivo...
October 10, 2017: Nitric Oxide: Biology and Chemistry
https://www.readbyqxmd.com/read/29030097/transient-vimentin-expression-during-the-embryonic-development-of-the-chicken-cerebellum
#20
Vasiliki Kommata, Catherine R Dermon
Complex morphogenetic events, critical for the development of normal cerebellum foliation and layering, are known to involve type III intermediate filament protein such as vimentin expressed by Bergmann glia. The present study aimed to determine aspects of intermediate and late embryonic pattern of vimentin expression during the corticogenesis of chicken cerebellum at embryonic days 10 to 19 (E10-E19), using single and double immunohistochemistry/immunofluorescence. Vimentin expression showed partial co-localization with the glial markers GFAP and BLBP...
October 10, 2017: International Journal of Developmental Neuroscience
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