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https://www.readbyqxmd.com/read/27916623/multiple-beneficial-effects-of-melanocortin-mc4-receptor-agonists-in-experimental-neurodegenerative-disorders-therapeutic-perspectives
#1
REVIEW
Daniela Giuliani, Alessandra Ottani, Laura Neri, Davide Zaffe, Paolo Grieco, Jerzy Jochem, Gian Maria Cavallini, Anna Catania, Salvatore Guarini
Melanocortin peptides induce neuroprotection in acute and chronic experimental neurodegenerative conditions. Melanocortins likewise counteract systemic responses to brain injuries. Furthermore, they promote neurogenesis by activating critical signaling pathways. Melanocortin-induced long-lasting improvement in synaptic activity and neurological performance, including learning and memory, sensory-motor orientation and coordinated limb use, has been consistently observed in experimental models of acute and chronic neurodegeneration...
December 1, 2016: Progress in Neurobiology
https://www.readbyqxmd.com/read/27911749/casting-a-wide-net-role-of-perineuronal-nets-in-neural-plasticity
#2
Barbara A Sorg, Sabina Berretta, Jordan M Blacktop, James W Fawcett, Hiroshi Kitagawa, Jessica C F Kwok, Marta Miquel
Perineuronal nets (PNNs) are unique extracellular matrix structures that wrap around certain neurons in the CNS during development and control plasticity in the adult CNS. They appear to contribute to a wide range of diseases/disorders of the brain, are involved in recovery from spinal cord injury, and are altered during aging, learning and memory, and after exposure to drugs of abuse. Here the focus is on how a major component of PNNs, chondroitin sulfate proteoglycans, control plasticity, and on the role of PNNs in memory in normal aging, in a tauopathy model of Alzheimer's disease, and in drug addiction...
November 9, 2016: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/27911071/severe-brain-injury-in-massachusetts-assessing-the-continuum-of-care
#3
Laura Lorenz, Gabrielle Katz
Acquired brain injury (ABI) is a major public health problem in Massachusetts (Hackman et al, 2014) and includes traumatic brain injury (TBI), stroke, ABI-related infectious diseases, metabolic disorders affecting the central nervous system (brain and spinal cord), and brain tumor. Advances in emergency medical care and neurosurgery mean that more people are surviving severe traumatic brain injury (Trexler et al, 2014). Yet many patients with severe TBI in particular, are not receiving inpatient services after initial treatment (Hackman et al, 2014; CDC, 2014) or later that are known to be effective (Malec & Kean, 2015; Lewis & Horn, 2015; BI Commission, 2011; Kolakowsky-Hayner et al, 2000; Interviews)...
December 10, 2015: Issue Brief
https://www.readbyqxmd.com/read/27890382/-alzheimer-s-disease-cerebro-spinal-fluid-biomarkers-a-clinical-research-tool-sometimes-useful-in-daily-clinical-practice-of-memory-clinics-for-the-diagnosis-of-complex-cases
#4
E Magnin, J Dumurgier, E Bouaziz-Amar, S Bombois, D Wallon, A Gabelle, S Lehmann, F Blanc, O Bousiges, D Hannequin, B Jung, C Miguet-Alfonsi, M Quillard, F Pasquier, K Peoc'h, J-L Laplanche, J Hugon, C Paquet
The role of biomarkers in clinical research was recently highlighted in the new criteria for the diagnosis of Alzheimer's disease. Cerebro-spinal fluid (CSF) biomarkers (total Tau protein, threonine 181 phosphorylated Tau protein and amyloid Aβ1-42 peptide) are associated with cerebral neuropathological lesions observed in Alzheimer's disease (neuronal death, neurofibrillary tangle with abnormal Tau deposits and amyloid plaque). Aβ1-40 amyloid peptide dosage helps to interpret Aβ1-42 results. As suggested in the latest international criteria and the French HAS (Haute Autorité de santé) recommendations, using theses CSF biomarkers should not be systematic but sometimes could be performed to improve confidence about the diagnostic of Alzheimer's disease in young subjects or in complex clinical situations...
November 24, 2016: La Revue de Médecine Interne
https://www.readbyqxmd.com/read/27866120/evidence-based-guidelines-on-the-therapeutic-use-of-transcranial-direct-current-stimulation-tdcs
#5
REVIEW
Jean-Pascal Lefaucheur, Andrea Antal, Samar S Ayache, David H Benninger, Jérôme Brunelin, Filippo Cogiamanian, Maria Cotelli, Dirk De Ridder, Roberta Ferrucci, Berthold Langguth, Paola Marangolo, Veit Mylius, Michael A Nitsche, Frank Padberg, Ulrich Palm, Emmanuel Poulet, Alberto Priori, Simone Rossi, Martin Schecklmann, Sven Vanneste, Ulf Ziemann, Luis Garcia-Larrea, Walter Paulus
A group of European experts was commissioned by the European Chapter of the International Federation of Clinical Neurophysiology to gather knowledge about the state of the art of the therapeutic use of transcranial direct current stimulation (tDCS) from studies published up until September 2016, regarding pain, Parkinson's disease, other movement disorders, motor stroke, poststroke aphasia, multiple sclerosis, epilepsy, consciousness disorders, Alzheimer's disease, tinnitus, depression, schizophrenia, and craving/addiction...
October 29, 2016: Clinical Neurophysiology: Official Journal of the International Federation of Clinical Neurophysiology
https://www.readbyqxmd.com/read/27798193/trem2-dap12-signal-elicits-proinflammatory-response-in-microglia-and-exacerbates-neuropathic-pain
#6
Masaaki Kobayashi, Hiroyuki Konishi, Akira Sayo, Toshiyuki Takai, Hiroshi Kiyama
: Neuropathic pain afflicts millions of people, and the development of an effective treatment for this intractable pain is an urgent issue. Recent evidence has implicated microglia in neuropathic pain. The present study showed that the DNAX-activating protein of 12 kDa (DAP12) and its associated "triggering receptor expressed on myeloid cells 2" (TREM2) were predominantly expressed by microglia in the dorsal horn after spinal nerve injury, revealing a role for TREM2/DAP12 signaling in neuropathic pain...
October 26, 2016: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/27714554/intrinsic-functional-connectivity-alterations-in-cognitively-intact-elderly-apoe-%C3%AE%C2%B54-carriers-measured-by-eigenvector-centrality-mapping-are-related-to-cognition-and-csf-biomarkers-a-preliminary-study
#7
Xiao Luo, Tiantian Qiu, Yunlu Jia, Peiyu Huang, Xiaojun Xu, Xinfeng Yu, Zhujing Shen, Yerfan Jiaerken, Xiaojun Guan, Jiong Zhou, Minming Zhang
Apolipoprotein E (APOE) ε4 allele is the best established genetic risk factor for sporadic Alzheimer's disease (AD). However, there is a need to understand the effects of this genotype on the brain by simultaneously assessing intrinsic brain network and cerebral spinal fluid (CSF) biomarkers changes in healthy older ε4 carriers. Thirteen cognitively intact, elderly APOE ε4 carriers and 22 ε3 homozygotes were included in the present study. Eigenvector centrality mapping (ECM) was used to identify brain network hub organization based on resting-state functional MRI (rsfMRI)...
October 6, 2016: Brain Imaging and Behavior
https://www.readbyqxmd.com/read/27699087/guanosine-a-neuromodulator-with-therapeutic-potential-in-brain-disorders
#8
REVIEW
Débora Lanznaster, Tharine Dal-Cim, Tetsadê C B Piermartiri, Carla I Tasca
Guanosine is a purine nucleoside with important functions in cell metabolism and a protective role in response to degenerative diseases or injury. The past decade has seen major advances in identifying the modulatory role of extracellular action of guanosine in the central nervous system (CNS). Evidence from rodent and cell models show a number of neurotrophic and neuroprotective effects of guanosine preventing deleterious consequences of seizures, spinal cord injury, pain, mood disorders and aging-related diseases, such as ischemia, Parkinson's and Alzheimer's diseases...
October 2016: Aging and Disease
https://www.readbyqxmd.com/read/27678294/protective-roles-of-slc30a3-against-endoplasmic-reticulum-stress-via-erk1-2-activation
#9
Hisaka Kurita, Rika Okuda, Kazuki Yokoo, Masatoshi Inden, Isao Hozumi
Endoplasmic reticulum (ER) stress has been thought to be involved to neurodegenerative diseases such as Alzheimer's disease (AD) or Amyotrophic lateral sclerosis (ALS). The previous studies have shown that SLC30A3 level is decreased in prefrontal cortex of AD patients. In addition, we have shown that level of zinc (Zn) is increased in cerebrospinal fluid and SLC30A3 level is decreased in spinal cord of ALS patients. It was thought that both SLC30A3 and ER stress could be related to the cause of AD and ALS, however the relationship between ER stress and SLC30A3 has not been elucidated...
October 28, 2016: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/27662296/preclinical-amyloid-%C3%AE-and-axonal-degeneration-pathology-in-delirium
#10
Ane-Victoria Idland, Torgeir Bruun Wyller, Randi Støen, Lars Magne Eri, Frede Frihagen, Johan Ræder, Farrukh Abbas Chaudhry, Oskar Hansson, Henrik Zetterberg, Kaj Blennow, Nenad Bogdanovic, Anne Brækhus, Leiv Otto Watne
BACKGROUND: The clinical relevance of brain β-amyloidosis in older adults without dementia is not established. As delirium and dementia are strongly related, studies on patients with delirium may give pathophysiological clues. OBJECTIVE: To determine whether the Alzheimer's disease (AD) cerebrospinal fluid (CSF) biomarkers amyloid-β 1-42 (Aβ42), total tau (T-tau), and phosphorylated tau (P-tau) are associated with delirium in hip fracture patients with and without dementia...
September 20, 2016: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/27660272/modulation-of-molecular-chaperones-in-huntington-s-disease-and-other-polyglutamine-disorders
#11
Sara D Reis, Brígida R Pinho, Jorge M A Oliveira
Polyglutamine expansion mutations in specific proteins underlie the pathogenesis of a group of progressive neurodegenerative disorders, including Huntington's disease, spinal and bulbar muscular atrophy, dentatorubral-pallidoluysian atrophy, and several spinocerebellar ataxias. The different mutant proteins share ubiquitous expression and abnormal proteostasis, with misfolding and aggregation, but nevertheless evoke distinct patterns of neurodegeneration. This highlights the relevance of the full protein context where the polyglutamine expansion occurs and suggests different interactions with the cellular proteostasis machinery...
September 22, 2016: Molecular Neurobiology
https://www.readbyqxmd.com/read/27553276/calcium-s-role-as-nuanced-modulator-of-cellular-physiology-in-the-brain
#12
Hilaree N Frazier, Shaniya Maimaiti, Katie L Anderson, Lawrence D Brewer, John C Gant, Nada M Porter, Olivier Thibault
Neuroscientists studying normal brain aging, spinal cord injury, Alzheimer's disease (AD) and other neurodegenerative diseases have focused considerable effort on carefully characterizing intracellular perturbations in calcium dynamics or levels. At the cellular level, calcium is known for controlling life and death and orchestrating most events in between. For many years, intracellular calcium has been recognized as an essential ion associated with nearly all cellular functions from cell growth to degeneration...
August 20, 2016: Biochemical and Biophysical Research Communications
https://www.readbyqxmd.com/read/27549144/role-of-kca3-1-channels-in-cns-diseases-a-concise-review
#13
Sinoy Sugunan, Sreekala S Nampoothiri, Tanya Garg, Rajanikant G Krishnamurthy
KCa3.1 protein is part of a heterotetrameric voltage-independent potassium channel, the activity of which depends on the intracellular calcium binding to calmodulin. KCa3.1 is immensely significant in regulating immune responses and primarily expressed in cells of hematopoietic lineage. It is one of the attractive pharmacological targets that are known to inhibit neuroinflammation. KCa3.1 blockers mediate neuroprotection through multiple mechanisms, such as by targeting microglia-mediated neuronal killing. KCa3...
August 22, 2016: CNS & Neurological Disorders Drug Targets
https://www.readbyqxmd.com/read/27546055/the-choroid-plexus-in-health-and-in-disease-dialogues-into-and-out-of-the-brain
#14
Fernanda Marques, João Carlos Sousa, Alexandra Brito, Jens Pahnke, Cecilia Santos, Margarida Correia-Neves, Joana Almeida Palha
This article brings the choroid plexus into the context of health and disease. It is remarkable that the choroid plexus, composed by the monolayer of epithelial cells that lie in a highly vascularized stroma, floating within the brain ventricles, gets so little attention in major physiology and medicine text books and in the scientific literature in general. Consider that it is responsible for producing most of the about 150mL of cerebrospinal fluid that fills the brain ventricles and the subarachnoid space and surrounds the spinal cord in the adult human brain, which is renewed approximately 2-3 times daily...
August 18, 2016: Neurobiology of Disease
https://www.readbyqxmd.com/read/27540523/the-evaluation-of-nerve-growth-factor-over-expression-on-neural-lineage-specific-genes-in-human-mesenchymal-stem-cells
#15
Yousef Mortazavi, Fatemeh Sheikhsaran, Gholamreza Khamisipour Khamisipour, Masoud Soleimani, Ali Teimuri, Somayeh Shokri
OBJECTIVE: Treatment and repair of neurodegenerative diseases such as brain tumors, spinal cord injuries, and functional disorders, including Alzheimer's disease, are challenging problems. A common treatment approach for such disorders involves the use of mesenchymal stem cells (MSCs) as an alternative cell source to replace injured cells. However, use of these cells in hosts may potentially cause adverse outcomes such as tumorigenesis and uncontrolled differentiation. In attempt to generate mesenchymal derived neural cells, we have infected MSCs with recombinant lentiviruses that expressed nerve growth factor (NGF) and assessed their neural lineage genes...
July 2016: Cell Journal
https://www.readbyqxmd.com/read/27539630/risk-of-dementia-in-patients-with-spinal-cord-injury-a-nationwide-population-based-cohort-study
#16
ShihWei Huang, WeiTe Wang, LinChuan Chou, TsanHon Liou, Hui-Wen Lin
Spinal cord injury (SCI) can cause physical disability and psychological distress; however, whether SCI is a risk factor for dementia is unclear. This study evaluated the incidence of dementia in patients with SCI. Study participants were recruited from a nationwide cohort during 2004-2007 and categorized into SCI (patients diagnosed with SCI; n = 941) and non-SCI (age- and sex-matched controls; n = 5,060) cohorts. Each participant was followed for 7 years until diagnosis of dementia or December 31, 2010, whichever occurred first...
August 18, 2016: Journal of Neurotrauma
https://www.readbyqxmd.com/read/27528056/micrornas-key-players-in-microglia-and-astrocyte-mediated-inflammation-in-cns-pathologies
#17
REVIEW
Aparna Karthikeyan, Radhika Patnala, Shweta P Jadhav, Ling Eng-Ang, S Thameem Dheen
The significance of microglia and astrocytes in neural development, in maintaining synaptic connections and homeostasis in the healthy brain is well established. Microglia are dynamic immune cells of the brain that elicit an immune response during brain damage and also participate in tissue repair and regeneration, while astrocytes contribute to the local inflammatory response by producing proinflammatory cytokines and resolving neuronal damage through production of anti-inflammatory cytokines and neurotrophic factors...
2016: Current Medicinal Chemistry
https://www.readbyqxmd.com/read/27516988/therapeutic-effect-of-frankincense-in-a-rat-model-of-alzheimer-s-disease
#18
Siamak Beheshti, Rezvan Aghaie
OBJECTIVE: Frankincense improves memory in different models of learning. However, its influence on models of Alzheimer's disease (AD) has not been studied widely. In the present study, the therapeutic effect of frankincense was evaluated in a model of AD induced by i.c.v administration of streptozotocin. MATERIALS AND METHODS: Under stereotaxic surgery, two guide cannulas were implanted in the lateral ventricles of adult male Wistar rats weighing 230-270 g. One group received streptozotocin (1...
July 2016: Avicenna Journal of Phytomedicine
https://www.readbyqxmd.com/read/27500182/altered-t-ucrs-expression-profile-in-the-spinal-cord-of-mice-with-neuropathic-pain
#19
Bao-Chun Jiang, Tian Yang, Li-Na He, Yuan-Xiang Tao, Yong-Jing Gao
Spinal cord plays an important role in the transmission and modulation of nociceptive information. Global changes in gene expression in the spinal cord contribute to the induction and maintenance of neuropathic pain. Transcribed Ultraconserved Regions (T-UCRs), a novel class of long noncoding RNAs, can regulate gene expression at both transcriptional and post-transcriptional levels and are related to many human diseases such as cancer, Alzheimer's disease, and heart diseases. In this study, we screened abnormal T-UCRs expression in the spinal cord under spinal nerve ligation (SNL)-induced neuropathic pain condition...
2016: Translational Perioperative and Pain Medicine
https://www.readbyqxmd.com/read/27499322/less-invasive-surgery-using-external-fixator-for-the-treatment-of-subtrochanteric-femur-fracture-in-a-high-risk-geriatric-patient
#20
O Şahap Atik, Fatih I Can, M Selçuk Şenol, Toygun K Eren
A 90-year-old female patient was admitted to our clinic complaining of pain in her left hip which occurred due to fall from a chair. Her medical history included memory loss and mental changes associated with Alzheimer's disease and depression. Patient's cooperation and orientation were weak. Range of motion of the left hip was restricted and painful. Radiographs of the left hip demonstrated subtrochanteric comminuted fracture of femur. Laboratory tests revealed anemia and liver insufficiency. Departments of internal medicine and anesthesiology reported high risk for surgery...
August 2016: Eklem Hastalıkları Ve Cerrahisi, Joint Diseases & related Surgery
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