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Current Research in Neurology

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https://www.readbyqxmd.com/read/28322973/imidazoline-i2-receptors-an-update
#1
REVIEW
Jun-Xu Li
Since first introduced more than two decades ago, the research in imidazoline I2 receptors has been steadily increasing. This review provides an update on the current status of I2 receptor pharmacology. Imidazoline I2 receptors or I2 binding sites refer to several (at least four) different proteins that bind to [(3)H]-idazoxan and [(3)H]-2-BFI with high affinity. The molecular identities of the proteins remain elusive. One of the proteins (45 kD) seems to be consistent with the identity of brain creatine kinase...
March 16, 2017: Pharmacology & Therapeutics
https://www.readbyqxmd.com/read/28322170/utilizing-delta-opioid-receptors-and-peptides-for-cytoprotection-implications-in-stroke-and-other-neurological-disorders
#2
Marci G Crowley, M Grant Liska, Trenton Lippert, Sydney Coreya, Cesar V Borlongan
The opioid system has been elucidated as a potential target for therapy in a variety of neurological disorders including stroke. Delta opioid receptors have been revealed to pose an especially compelling biological function for new neuroprotective therapies. Two distinct therapeutic mechanisms have been characterized for delta opioid receptors s, namely, these receptors aid in maintaining ionic homeostasis and initiate endogenous neuroprotective pathways. Specific agonists of delta opioid receptors, such as (D-Ala2, D-Leu5) enkephalin (DADLE), have displayed the ability to promote neuronal survival and mitigate apoptotic pathways...
March 20, 2017: CNS & Neurological Disorders Drug Targets
https://www.readbyqxmd.com/read/28318966/structural-biology-of-the-zika-virus
#3
REVIEW
Yi Shi, George F Gao
Zika virus (ZIKV), a Flaviviridae family member transmitted to humans by mosquitoes, has emerged as a major health concern. ZIKV infections can cause serious neurological complications in adults, and infection in pregnant women can cause congenital malformations, including fetal and newborn microcephaly. In response to this emerging concern, the structural virology field was quick to explore the features of ZIKV. These efforts have provided significant insights into ZIKV pathogenesis, and have identified targets for drug design...
March 15, 2017: Trends in Biochemical Sciences
https://www.readbyqxmd.com/read/28318366/a-composite-neurobehavioral-test-to-evaluate-acute-functional-deficits-after-cerebellar-haemorrhage-in-rats
#4
Devin W McBride, Derek Nowrangi, Harpreet Kaur, Guangyong Wu, Lei Huang, Tim Lekic, Jiping Tang, John H Zhang
Cerebellar haemorrhage accounts for 5-10% of all intracerebral haemorrhages and leads to severe, long-lasting functional deficits. Currently, there is limited research on this stroke subtype, which may be due to the lack of a suitable composite neuroscoring system specific for cerebellar injury in rodents. The purpose of this study is to develop a comprehensive composite neuroscore test for cerebellar injury using a rat model of cerebellar haemorrhage. Sixty male Sprague-Dawley rats were subjected to either sham surgery or cerebellar haemorrhage...
January 1, 2017: Journal of Cerebral Blood Flow and Metabolism
https://www.readbyqxmd.com/read/28315071/delta-opioid-receptor-and-peptide-a-dynamic-therapy-for-stroke-and-other-neurological-disorders
#5
M Grant Liska, Marci G Crowley, Trenton Lippert, Sydney Corey, Cesar V Borlongan
Research of the opioid system and its composite receptors and ligands has revealed its promise as a potential therapy for neurodegenerative diseases such as stroke and Parkinson's Disease. In particular, delta opioid receptors (DORs) have been elucidated as a therapeutically distinguished subset of opioid receptors and a compelling target for novel intervention techniques. Research is progressively shedding light on the underlying mechanism of DORs and has revealed two mechanisms of DOR neuroprotection; DORs function to maintain ionic homeostasis and also to trigger endogenous neuroprotective pathways...
March 18, 2017: Handbook of Experimental Pharmacology
https://www.readbyqxmd.com/read/28314976/enzyme-replacement-therapy-and-beyond-in-memoriam-roscoe-o-brady-m-d-1923-2016
#6
REVIEW
Markus Ries
Lysosomal storage disorders are strong candidates for the development of specific innovative therapies. The discovery of enzyme deficiencies is an important milestone in understanding the underlying cause of disease. Being able to replace the first missing enzyme in a lysosomal storage required three decades of dedicated research. Successful drug development for lysosomal storage disorders was fostered by the U.S. Orphan Drug Act. Various optimization strategies have the potential to overcome the current limitations of enzyme replacement therapies...
March 17, 2017: Journal of Inherited Metabolic Disease
https://www.readbyqxmd.com/read/28314518/the-interface-between-chronic-fatigue-syndrome-and-depression-a-psychobiological-and-neurophysiological-conundrum
#7
Derek Larkin, Colin R Martin
The chronic fatigue syndrome (CFS) remains a contentious and controversial presentation despite decades of systematic research from a variety of medical specialties and associated disciplines. Variously championed as a condition of immunological, neurological, neurophysiological, psychiatric or psychological origin, consensus on a cogent and evidenced-based pathway has yet to be achieved. Irrespective of the ambiguity regarding aetiology, what is incontrovertible is the experience of significant depression, which often accompanies this most distressing clinical presentation...
March 14, 2017: Neurophysiologie Clinique, Clinical Neurophysiology
https://www.readbyqxmd.com/read/28306631/thermoregulate-autoregulate-and-ventilate-brain-directed-critical-care-for-pediatric-cardiac-arrest
#8
Jonathan E Kurz, Craig M Smith, Mark S Wainwright
PURPOSE OF REVIEW: Cardiac arrest in childhood is associated with a high risk for mortality and poor long-term functional outcome. This review discusses the current evidence for neuroprotective therapies and goals for postarrest care in the context of the pathophysiology of hypoxic-ischemic injury, modalities for neurologic prognostication in these children and potential future monitoring paradigms for maximizing cerebral perfusion in the postarrest period. RECENT FINDINGS: The recent publication of the in-hospital and out-of-hospital Therapeutic Hypothermia After Cardiac Arrest trials demonstrated a lack of statistically significant benefit for the use of postarrest therapeutic hypothermia...
March 16, 2017: Current Opinion in Pediatrics
https://www.readbyqxmd.com/read/28306628/pediatric-spinal-cord-injury-without-radiographic-abnormality-in-the-era-of-advanced-imaging
#9
Caitlin A Farrell, Megan Hannon, Lois K Lee
PURPOSE OF REVIEW: The current review describes the current evidence on pediatric spinal cord injury without radiographic abnormality (SCIWORA) with attention to the definition, epidemiology, and clinical presentation of the condition, as well as common MRI findings, management strategies, and outcomes. RECENT FINDINGS: Recent literature demonstrates that with more widespread MRI use, our understanding of SCIWORA has improved. The new literature, although still limited, provides a more granular conceptualization of patterns of injury as well as potential prognostic stratification of patients based on MRI findings...
March 16, 2017: Current Opinion in Pediatrics
https://www.readbyqxmd.com/read/28298927/therapeutic-potential-of-olfactory-ensheathing-cells-and-mesenchymal-stem-cells-in-spinal-cord-injuries
#10
REVIEW
Zadroga Anna, Jezierska-Woźniak Katarzyna, Czarzasta Joanna, Monika Barczewska, Wojtkiewicz Joanna, Maksymowicz Wojciech
Spinal cord injury (SCI) is a devastating neurological condition that affects individuals worldwide, significantly reducing quality of life, for both patients and their families. In recent years there has been a growing interest in cell therapy potential in the context of spinal cord injuries. The present review aims to discuss and compare the restorative approaches based on the current knowledge, available spinal cord restorative cell therapies, and use of selected cell types. However, treatment options for spinal cord injury are limited, but rehabilitation and experimental technologies have been found to help maintain or improve remaining nerve function in some cases...
2017: Stem Cells International
https://www.readbyqxmd.com/read/28293185/hypoconnectivity-of-resting-state-networks-in-persons-with-aphasia-compared-with-healthy-age-matched-adults
#11
Chaleece W Sandberg
Aphasia is a language disorder affecting more than one million people in the US. While language function has traditionally been the focus of neuroimaging research, other cognitive functions are affected in this population, which has implications not only for those specific processes but also for the interaction of language and other cognitive functions. Resting state fMRI (rs-fMRI) is a practical and informative way to explore and characterize general cognitive engagement and/or health in this population, but it is currently underutilized...
2017: Frontiers in Human Neuroscience
https://www.readbyqxmd.com/read/28290467/long-term-survival-after-traumatic-spinal-cord-injury-a-70-year-british-study
#12
G Savic, M J DeVivo, H L Frankel, M A Jamous, B M Soni, S Charlifue
STUDY DESIGN: Retrospective and prospective observational. OBJECTIVES: Analyse long-term survival after traumatic spinal cord injury (SCI) in Great Britain over the 70-year study period, identify mortality risk factors and estimate current life expectancy. SETTING: Two spinal centres in Great Britain. METHODS: The sample consisted of patients with traumatic SCI injured 1943-2010 who survived the first year post-injury, had residual neurological deficit on discharge and were British residents...
March 14, 2017: Spinal Cord
https://www.readbyqxmd.com/read/28288694/mtor-inhibitors-in-the-pharmacologic-management-of-tuberous-sclerosis-complex-and-their-potential-role-in-other-rare-neurodevelopmental-disorders
#13
REVIEW
David N Franz, Jamie K Capal
Tuberous sclerosis complex (TSC) is a rare autosomal dominant genetic disorder that affects multiple organ systems throughout the body. Dysregulation of the mammalian target of rapamycin (mTOR) pathway is implicated in the disease pathology, and evidence exists to support the use of mTOR inhibitors in treatment. The mTOR pathway has also been investigated as a potential treatment target for several other rare diseases. TSC research has highlighted the value of pursuing targeted therapies based on underlying molecular pathophysiology...
March 14, 2017: Orphanet Journal of Rare Diseases
https://www.readbyqxmd.com/read/28285378/monoclonal-antibodies-for-relapsing-multiple-sclerosis-a-review-of-recently-marketed-and-late-stage-agents
#14
REVIEW
Morten Blinkenberg, Per Soelberg Sørensen
Treatment of multiple sclerosis (MS) has improved considerably over the last decade because of new insights into MS pathology and biotechnological advances. This has led to the development of new potent pharmaceutical compounds targeting different processes in the complex autoimmune pathology leading to chronic central nervous system (CNS) demyelination, neural loss, and, finally, neurological disability. Although a number of disease-modifying treatments are available for the treatment of the inflammatory phase of MS, there is still a need for highly efficacious therapies with an acceptable safety profile in order to gain therapeutic control early in the disease course...
March 11, 2017: CNS Drugs
https://www.readbyqxmd.com/read/28283560/hdac7-ubiquitination-by-the-e3-ligase-cbx4-is-involved-in-contextual-fear-conditioning-memory-formation
#15
Xu Jing, Wen-Hai Sui, Shuai Wang, Xu-Feng Xu, Rong-Rong Yuan, Xiao-Rong Chen, Hui-Xian Ma, Ying-Xiao Zhu, Jin-Kai Sun, Fan Yi, Zhe-Yu Chen, Yue Wang
Histone acetylation, which comprises an epigenetic modification, plays an important role in long-term memory formation. Recently, histone deacetylase (HDAC) inhibitors were demonstrated to promote memory formation, which raises the intriguing possibility that HDAC inhibitors may be used to rescue memory deficits. However, additional research is necessary to clarify the roles of individual HDACs in memory. In this study, we demonstrated that HDAC7, within the dorsal hippocampus (DH) of C57BL6J mice, had a late and persistent decrease after contextual fear conditioning (CFC) training (4 h∼24 h), which was involved in long-term CFC memory formation...
March 10, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28283559/a-rare-variant-identified-within-the-glun2b-c-terminus-in-a-patient-with-autism-affects-nmda-receptor-surface-expression-and-spine-density
#16
Shuxi Liu, Liang Zhou, Hongjie Yuan, Marta Vieira, Antonio Sanz-Clemente, John D Badger, Wei Lu, Stephen F Traynelis, Katherine W Roche
NMDA receptors (NMDARs) are ionotropic glutamate receptors that are crucial for neuronal development and higher cognitive processes. NMDAR dysfunction is involved in a variety of neurological and psychiatric diseases; however, the mechanistic link between the human pathology and NMDAR dysfunction is poorly understood. Rare missense variants within NMDAR subunits have been identified in numerous patients with mental or neurological disorders. We specifically focused on the GluN2B NMDAR subunit, which is highly expressed in the hippocampus and cortex throughout development...
March 10, 2017: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/28280466/embryonic-stem-cell-derived-neurons-grown-on-multi-electrode-arrays-as-a-novel-in-vitro-bioassay-for-the-detection-of-clostridium-botulinum-neurotoxins
#17
Stephen P Jenkinson, Denis Grandgirard, Martina Heidemann, Anne Tscherter, Marc-André Avondet, Stephen L Leib
Clostridium botulinum neurotoxins (BoNTs) are the most poisonous naturally occurring protein toxins known to mankind and are the causative agents of the severe and potentially life-threatening disease botulism. They are also known for their application as cosmetics and as unique bio-pharmaceuticals to treat an increasing number of neurological and non-neurological disorders. Currently, the potency of biologically active BoNT for therapeutic use is mainly monitored by the murine LD50-assay, an ethically disputable test causing suffering and death of a considerable number of mice...
2017: Frontiers in Pharmacology
https://www.readbyqxmd.com/read/28273039/multiple-sclerosis-in-canada-2011-to-2031-results-of-a-microsimulation-modelling-study-of-epidemiological-and-economic-impacts
#18
Nana Amankwah, Ruth Ann Marrie, Christina Bancej, Rochelle Garner, Douglas G Manuel, Ron Wall, Philippe Finès, Julie Bernier, Karen Tu, Kim Reimer
INTRODUCTION: The objective of our study was to present model-based estimates and projections on current and future health and economic impacts of multiple sclerosis (MS) in Canada over a 20-year time horizon (2011-2031). METHODS: Using Statistics Canada's Population Health Microsimulation Model (POHEM) framework, specifically the population-based longitudinal, microsimulation model named POHEM-Neurological, we identified people with MS from health administrative data sources and derived incidence and mortality rate parameters from a British Columbia population-based cohort for future MS incidence and mortality projections...
February 2017: Health Promotion and Chronic Disease Prevention in Canada
https://www.readbyqxmd.com/read/28269447/using-bioimpedance-spectroscopy-parameters-as-real-time-feedback-during-tdcs
#19
Isar Nejadgholi, Herschel Caytak, Miodrag Bolic
An exploratory analysis is carried out to investigate the feasibility of using BioImpedance Spectroscopy (BIS) parameters, measured on scalp, as real-time feedback during Transcranial Direct Current Stimulation (tDCS). TDCS is shown to be a potential treatment for neurological disorders. However, this technique is not considered as a reliable clinical treatment, due to the lack of a measurable indicator of treatment efficacy. Although the voltage that is applied on the head is very simple to measure during a tDCS session, changes of voltage are difficult to interpret in terms of variables that affect clinical outcome...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
https://www.readbyqxmd.com/read/28269381/relationship-between-gait-variables-and-domains-of-neurologic-dysfunction-in-multiple-sclerosis-using-six-minute-walk-test
#20
Asma Qureshi, Maite Brandt-Pearce, Myla D Goldman
Most multiple sclerosis (MS) patients eventually suffer from mobility impairment, and thus it is critical that walking disability in MS be accurately assessed. The six-minute walk test (6MWT), a reliable MS measure, is traditionally used to determine the distance covered in six minutes using a standard protocol. With the availability of body sensor networks (BSNs), researchers are interested in leveraging BSN data for finding new gait assessment anchors for improved separability performance. Further, current methods for gait assessments are insufficient since assessments are absolute, performed by comparing outcomes to the statistical norms established from diverse patient data despite natural inter-patient variability...
August 2016: Conference Proceedings: Annual International Conference of the IEEE Engineering in Medicine and Biology Society
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