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https://www.readbyqxmd.com/read/28887184/chronic-fluoxetine-administration-enhances-synaptic-plasticity-and-increases-functional-dynamics-in-hippocampal-ca3-ca1-synapses
#1
Popova Dina, Eero Castren, Tomi Taira
Recent studies demonstrate that chronic administration of the widely used antidepressant fluoxetine (FLX) promotes neurogenesis, synaptogenesis and synaptic plasticity in the adult hippocampus, cortex and amygdala. However, the mechanisms underlying these effects and how are they related to the clinical antidepressant efficacy are still poorly understood. We show here that chronic FLX administration decreases hippocampus-associated neophobia in naïve mice. In parallel, electrophysiological recordings in hippocampal CA3-CA1 circuitry revealed that the FLX treatment resulted in increased short- and long-term plasticity likely attributed to changes in presynaptic function...
September 5, 2017: Neuropharmacology
https://www.readbyqxmd.com/read/28882175/strategies-to-improve-the-quality-of-life-of-persons-post-stroke-protocol-of-a-systematic-review
#2
Sarah E P Munce, Laure Perrier, Saeha Shin, Chamila Adhihetty, Kristen Pitzul, Michelle L A Nelson, Mark T Bayley
BACKGROUND: While many outcomes post-stroke (e.g., depression) have been previously investigated, there is no complete data on the impact of a variety of quality improvement strategies on the quality of life and physical and psychological well-being of individuals post-stroke. The current paper outlines a systematic review protocol on the impact of quality improvement strategies on quality of life as well as physical and psychological well-being of individuals with stroke. METHODS: MEDLINE, CINAHL, EMBASE, and PsycINFO databases will be searched...
September 7, 2017: Systematic Reviews
https://www.readbyqxmd.com/read/28758540/using-the-theoretical-domains-framework-to-guide-the-development-of-a-self-management-program-for-individuals-with-spinal-cord-injury-results-from-a-national-stakeholder-advisory-group
#3
Sarah E P Munce, Sonya Allin, Dalton L Wolfe, Karen Anzai, Gary Linassi, Vanessa K Noonan, Susan B Jaglal
OBJECTIVE: To determine the implementation considerations for a targeted self-management program for individuals with spinal cord injury (SCI) from the perspective of a national stakeholder advisory group using the Theoretical Domains Framework (TDF) as a guide. DESIGN: Qualitative descriptive approach. SETTING: Two focus groups held at the 6(th) National Spinal Cord Injury Conference (October 2-4(th), 2014) in Toronto, Ontario, Canada. PARTICIPANTS: A total of 25 stakeholders from across Canada participated in focus groups or "brainstorming sessions"...
July 30, 2017: Journal of Spinal Cord Medicine
https://www.readbyqxmd.com/read/28651530/perspectives-of-health-care-professionals-on-the-facilitators-and-barriers-to-the-implementation-of-a-stroke-rehabilitation-guidelines-cluster-randomized-controlled-trial
#4
Sarah E P Munce, Ian D Graham, Nancy M Salbach, Susan B Jaglal, Carol L Richards, Janice J Eng, Johanne Desrosiers, Marilyn MacKay-Lyons, Sharon Wood-Dauphinee, Nicol Korner-Bitensky, Nancy E Mayo, Robert W Teasell, Merrick Zwarenstein, Jennifer Mokry, Sandra Black, Mark T Bayley
BACKGROUND: The Stroke Canada Optimization of Rehabilitation by Evidence Implementation Trial (SCORE-IT) was a cluster randomized controlled trial that evaluated two knowledge translation (KT) interventions for the promotion of the uptake of best practice recommendations for interventions targeting upper and lower extremity function, postural control, and mobility. Twenty rehabilitation centers across Canada were randomly assigned to either the facilitated or passive KT intervention. The objective of the current study was to understand the factors influencing the implementation of the recommended treatments and KT interventions from the perspective of nurses, occupational therapists and physical therapists, and clinical managers following completion of the trial...
June 26, 2017: BMC Health Services Research
https://www.readbyqxmd.com/read/28426513/evaluation-of-the-functional-movement-screen-and-a-novel-basketball-mobility-test-as-an-injury-prediction-tool-for-collegiate-basketball-players
#5
Colin W Bond, Jason C Dorman, Tryg O Odney, Scott J Roggenbuck, Steven W Young, Thayne A Munce
Identifying injury risk and implementing preventive measures can assist in reducing injury occurrence and may ultimately improve athletic performance. Improper movement patterns often contribute to musculoskeletal (MSK) injuries. The validity of the Functional Movement Screen (FMS™) as an injury prediction tool for athletes remains unclear. We designed the Basketball-Specific Mobility Test (BMT) to represent the neuromuscular demands of basketball and identify deficiencies that may be indicative of greater MSK injury risk while playing this sport...
April 15, 2017: Journal of Strength and Conditioning Research
https://www.readbyqxmd.com/read/28424586/app-protein-family-signaling-at-the-synapse-insights-from-intracellular-app-binding-proteins
#6
REVIEW
Suzanne Guénette, Paul Strecker, Stefan Kins
Understanding the molecular mechanisms underlying amyloid precursor protein family (APP/APP-like proteins, APLP) function in the nervous system can be achieved by studying the APP/APLP interactome. In this review article, we focused on intracellular APP interacting proteins that bind the YENPTY internalization motif located in the last 15 amino acids of the C-terminal region. These proteins, which include X11/Munc-18-interacting proteins (Mints) and FE65/FE65Ls, represent APP cytosolic binding partners exhibiting different neuronal functions...
2017: Frontiers in Molecular Neuroscience
https://www.readbyqxmd.com/read/28357064/key-proteins-involved-in-insulin-vesicle-exocytosis-and-secretion
#7
Qian-Yin Xiong, Cui Yu, Yao Zhang, Liefeng Ling, Lizhuo Wang, Jia-Lin Gao
In vivo insulin secretion is predominantly affected by blood glucose concentration, blood concentration of amino acids, gastrointestinal hormones and free nerve functional status, in addition to other factors. Insulin is one of the most important hormones in the body, and its secretion is precisely controlled by nutrients, neurotransmitters and hormones. The insulin exocytosis process is similar to the neurotransmitter release mechanism. There are various types of proteins and lipids that participate in the insulin secretory vesicle fusion process, such as soluble N-ethylmaleimide-sensitive factor attachment protein receptor (SNARE) protein, Ras-related proteins and vacuolar-type H(+)-ATPase (V-ATPase)...
February 2017: Biomedical Reports
https://www.readbyqxmd.com/read/28325859/scoping-review-of-potential-quality-indicators-for-hip-fracture-patient-care
#8
Kristen B Pitzul, Sarah E P Munce, Laure Perrier, Lauren Beaupre, Suzanne N Morin, Rhona McGlasson, Susan B Jaglal
OBJECTIVE: The purpose of this study is to identify existing or potential quality of care indicators (ie, current indicators as well as process and outcome measures) in the acute or postacute period, or across the continuum of care for older adults with hip fracture. DESIGN: Scoping review. SETTING: All care settings. SEARCH STRATEGY: English peer-reviewed studies published from January 2000 to January 2016 were included...
March 21, 2017: BMJ Open
https://www.readbyqxmd.com/read/28265073/sm-protein-munc18-2-facilitates-transition-of-syntaxin-11-mediated-lipid-mixing-to-complete-fusion-for-t-lymphocyte-cytotoxicity
#9
Waldo A Spessott, Maria L Sanmillan, Margaret E McCormick, Vineet V Kulkarni, Claudio G Giraudo
The atypical lipid-anchored Syntaxin 11 (STX11) and its binding partner, the Sec/Munc (SM) protein Munc18-2, facilitate cytolytic granule release by cytotoxic T lymphocytes (CTLs) and natural killer (NK) cells. Patients carrying mutations in these genes develop familial hemophagocytic lymphohistiocytosis, a primary immunodeficiency characterized by impaired lytic granule exocytosis. However, whether a SNARE such as STX11, which lacks a transmembrane domain, can support membrane fusion in vivo is uncertain, as is the precise role of Munc18-2 during lytic granule exocytosis...
March 14, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28218020/stroke-rehabilitation-evidence-and-comorbidity-a-systematic-scoping-review-of-randomized-controlled-trials
#10
Michelle L A Nelson, Kaileah A McKellar, Juliana Yi, Linda Kelloway, Sarah Munce, Cheryl Cott, Ruth Hall, Martin Fortin, Robert Teasell, Renee Lyons
BACKGROUND: Most strokes occur in the context of other medical diagnoses. Currently, stroke rehabilitation evidence reviews have not synthesized or presented evidence with a focus on comorbidities and correspondingly may not align with current patient population. The purpose of this review was to determine the extent and nature of randomized controlled trial stroke rehabilitation evidence that included patients with multimorbidity. METHODS: A systematic scoping review was conducted...
February 20, 2017: Topics in Stroke Rehabilitation
https://www.readbyqxmd.com/read/28215356/the-financial-burden-of-prescription-drugs-for-neurological-conditions-in-canada-results-from-the-national-population-health-study-of-neurological-conditions
#11
Sara Guilcher, Sarah Munce, James Conklin, Tanya Packer, Molly Verrier, Connie Marras, Tarik Bereket, Joan Versnel, Richard Riopelle, Susan Jaglal
This paper describes the current situation in Canada concerning the availability and use of prescription drugs for neurological conditions. We conducted semi-structured qualitative interviews with health care providers, administrators, community organization representatives, opinion leaders and policy makers. The analysis revealed three primary themes related to the availability of and access to prescription drugs to treat neurological conditions. First, we learned that across Canada there is significant vulnerability and a need for advocacy on behalf of people living with these conditions...
April 2017: Health Policy
https://www.readbyqxmd.com/read/27723231/the-importance-of-provision-and-utilization-of-supervisor-support
#12
Alec Munc, Kevin Eschleman, Janet Donnelly
Three cross-sectional studies examined the benefits of provision of supervisor support while controlling for subordinate utilization of supervisor support. Data were collected from workers in a subordinate role (Study 1 N = 355; Study 2 N = 229; Study 3 N = 109). Consistent with expectations, provision of supervisor support consistently explained unique variance in affective job criteria while controlling for utilization of supervisor support. The results indicate that supervisors should acknowledge that their workers experience the affective benefits of supervisor support even if the workers do not consistently use the support provided...
October 10, 2016: Stress and Health: Journal of the International Society for the Investigation of Stress
https://www.readbyqxmd.com/read/27630671/repair-of-traumatic-plasmalemmal-damage-to-neurons-and-other-eukaryotic-cells
#13
REVIEW
George D Bittner, Christopher S Spaeth, Andrew D Poon, Zachary S Burgess, Christopher H McGill
The repair (sealing) of plasmalemmal damage, consisting of small holes to complete transections, is critical for cell survival, especially for neurons that rarely regenerate cell bodies. We first describe and evaluate different measures of cell sealing. Some measures, including morphological/ultra-structural observations, membrane potential, and input resistance, provide very ambiguous assessments of plasmalemmal sealing. In contrast, measures of ionic current flow and dye barriers can, if appropriately used, provide more accurate assessments...
July 2016: Neural Regeneration Research
https://www.readbyqxmd.com/read/27630261/the-interaction-of-munc-18-p67-with-the-p10-domain-of-p35-protects-in-vivo-cdk5-p35-activity-from-inhibition-by-tfp5-a-peptide-derived-from-p35
#14
Niranjana D Amin, Yali Zheng, Binukumar Bk, Varsha Shukla, Susan Skuntz, Philip Grant, Joseph Steiner, Manju Bhaskar, Harish C Pant
In a series of studies, we have identified TFP5, a truncated fragment of p35, the Cdk5 kinase regulatory protein, which inhibits Cdk5/p35 and the hyperactive Cdk5/p25 activities in test tube experiments. In cortical neurons, however, and in vivo in Alzheimer's disease (AD) model mice, the peptide specifically inhibits the Cdk5/p25 complex and not the endogenous Cdk5/p35. To account for the selective inhibition of Cdk5/p25 activity, we propose that the "p10" N-terminal domain of p35, absent in p25, spares Cdk5/p35 because p10 binds to macromolecules (e...
November 1, 2016: Molecular Biology of the Cell
https://www.readbyqxmd.com/read/27558849/distinct-roles-of-the-two-vps33-proteins-in-the-endolysosomal-system-in-caenorhabditis-elegans
#15
Keiko Gengyo-Ando, Eriko Kage-Nakadai, Sawako Yoshina, Muneyoshi Otori, Yuko Kagawa-Nagamura, Junichi Nakai, Shohei Mitani
Sec1/Munc-18 (SM) family proteins are essential regulators in intracellular transport in eukaryotic cells. The SM protein Vps33 functions as a core subunit of two tethering complexes, class C core vacuole/endosome tethering (CORVET) and homotypic fusion and vacuole protein sorting (HOPS) in the endocytic pathway in yeast. Metazoan cells possess two Vps33 proteins, VPS33A and VPS33B, but their precise roles remain unknown. Here, we present a comparative analysis of Caenorhabditis elegans null mutants for these proteins...
November 2016: Traffic
https://www.readbyqxmd.com/read/27361632/injury-rates-and-types-at-a-small-recreational-ski-area-in-the-upper-midwest-3063-board-128-june-3-3-30-pm-5-00-pm
#16
James A White, Darren L DeNeui, Jason C Dorman, Thayne A Munce
No abstract text is available yet for this article.
May 2016: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/27360154/head-impact-exposure-in-youth-football-during-different-practice-activities-1011-board-327-june-1-3-30-pm-5-00-pm
#17
Thayne A Munce, Jason C Dorman, Verle D Valentine
No abstract text is available yet for this article.
May 2016: Medicine and Science in Sports and Exercise
https://www.readbyqxmd.com/read/27324898/protein-profile-and-morphological-alterations-in-penumbra-after-focal-photothrombotic-infarction-in-the-rat-cerebral-cortex
#18
Anatoly Uzdensky, Svetlana Demyanenko, Grigory Fedorenko, Tayana Lapteva, Alexej Fedorenko
After ischemic stroke, cell damage propagates from infarct core to surrounding tissues (penumbra). To reveal proteins involved in neurodegeneration and neuroprotection in penumbra, we studied protein expression changes in 2-mm ring around the core of photothrombotic infarct induced in the rat brain cortex by local laser irradiation after administration of Bengal Rose. The ultrastructural study showed edema and degeneration of neurons, glia, and capillaries. Morphological changes gradually decreased across the penumbra...
August 2017: Molecular Neurobiology
https://www.readbyqxmd.com/read/27125645/manganese-exposure-disrupts-snare-protein-complex-mediated-vesicle-fusion-in-primary-cultured-neurons
#19
Can Wang, Bin Xu, Qi-Fan Song, Yu Deng, Wei Liu, Zhao-Fa Xu
Overexposure to manganese (Mn) has been known to disrupt neurotransmitter release in the brain. However, the underlying mechanisms of Mn exposure on neurotransmitter vesicle release are still unclear. The current study investigated whether the protein expression and their interaction of SNARE complex associated proteins were the media between Mn exposure and neurotransmitter vesicle fusion disorders. After the neurons were respectively exposed to Mn (0-200 μM) for 0, 6, 12, 18, 24 h, there were different degrees of cell injury in neurons...
February 2017: Environmental Toxicology
https://www.readbyqxmd.com/read/27067299/evaluation-of-automated-fracture-risk-assessment-based-on-the-canadian-association-of-radiologists-and-osteoporosis-canada-assessment-tool
#20
Sonya Allin, Robert Bleakney, Julie Zhang, Sarah Munce, Angela M Cheung, Susan Jaglal
Fracture risk assessments are not always clearly communicated on bone mineral density (BMD) reports; evidence suggests that structured reporting (SR) tools may improve report clarity. The aim of this study is to compare fracture risk assessments automatically assigned by SR software in accordance with Canadian Association of Radiologists and Osteoporosis Canada (CAROC) recommendations to assessments from experts on narrative BMD reports. Charts for 500 adult patients who recently received a BMD exam were sampled from across University of Toronto's Joint Department of Medical Imaging...
July 2016: Journal of Clinical Densitometry
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