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https://www.readbyqxmd.com/read/28526762/exacerbation-of-thromboinflammation-by-hyperglycemia-precipitates-cerebral-infarct-growth-and-hemorrhagic-transformation
#1
Jean-Philippe Desilles, Varouna Syvannarath, Véronique Ollivier, Clément Journé, Sandrine Delbosc, Célina Ducroux, William Boisseau, Liliane Louedec, Lucas Di Meglio, Stéphane Loyau, Martine Jandrot-Perrus, Louis Potier, Jean-Baptiste Michel, Mikael Mazighi, Benoit Ho-Tin-Noé
BACKGROUND AND PURPOSE: Admission hyperglycemia is associated with a poor outcome in acute ischemic stroke. How hyperglycemia impacts the pathophysiology of acute ischemic stroke remains largely unknown. We investigated how preexisting hyperglycemia increases ischemia/reperfusion cerebral injury. METHODS: Normoglycemic and streptozotocin-treated hyperglycemic rats were subjected to transient middle cerebral artery occlusion. Infarct growth and brain perfusion were assessed by magnetic resonance imaging...
May 19, 2017: Stroke; a Journal of Cerebral Circulation
https://www.readbyqxmd.com/read/28525587/assessing-the-psychedelic-after-glow-in-ayahuasca-users-post-acute-neurometabolic-and-functional-connectivity-changes-are-associated-with-enhanced-mindfulness-capacities
#2
Frederic Sampedro, Mario de la Fuente Revenga, Marta Valle, Natalia Roberto, Elisabet Domínguez-Clavé, Matilde Elices, Luís Eduardo Luna, José Alexandre S Crippa, Jaime E C Hallak, Draulio B de Araujo, Pablo Friedlander, Steven A Barker, Enrique Álvarez, Joaquim Soler, Juan C Pascual, Amanda Feilding, Jordi Riba
Background: Ayahuasca is a plant tea containing the psychedelic 5-HT2A agonist N,N-dimethyltryptamine (DMT) and harmala monoamine-oxidase inhibitors. Acute administration leads to neurophysiological modifications in brain regions of the default mode network (DMN), purportedly through a glutamatergic mechanism. Post-acutely, ayahuasca potentiates mindfulness capacities in volunteers, and induces rapid and sustained antidepressant effects in treatment-resistant patients. However, the mechanisms underlying these fast and maintained effects are poorly understood...
May 19, 2017: International Journal of Neuropsychopharmacology
https://www.readbyqxmd.com/read/28523604/chemo-enzymatic-synthesis-of-a-glycosylated-peptide-containing-a-complex-n-glycan-based-on-unprotected-oligosaccharides-by-using-dmt-mm-and-endo-m
#3
Yusuke Tomabechi, Toshihiko Katoh, Munetaka Kunishima, Toshiyuki Inazu, Kenji Yamamoto
For chemo-enzymatic synthesis of a glycosylated peptide, 4-(4,6-dimethoxy-1,3,5-triazin-2-yl)-4-methylmorpholinium chloride (DMT-MM) was used for the synthesis of a N-acetylglucosaminyl peptide and a pseudoglycopeptide by solid-phase peptide synthesis without the requirement of protecting groups on the carbohydrate. We also performed transglycosylation of an N-glycan to the N-acetylglucosaminyl peptide using endo-β-N-acetylglucosaminidase from Mucor hiemalis (Endo-M) to synthesize a glycopeptide containing a complex N-glycan...
May 18, 2017: Glycoconjugate Journal
https://www.readbyqxmd.com/read/28508331/is-pesticide-sorption-by-constructed-wetland-sediments-governed-by-water-level-and-water-dynamics
#4
Céline Gaullier, Sylvie Dousset, David Billet, Nicole Baran
Constructed wetlands (CWs) are used to reduce the pesticide inputs from tile drainage or run-off to surface water. Their effectiveness appears variable and remains to be better characterized and understood. The aim of this study was to assess the influences of two hydraulic parameters (i.e., dynamics and water level) on the sorption process occurring in CWs. Then, two solid/liquid ratios were studied (1/1 and 1/5) to mimic the water level variation in the field, and two agitation speeds were used (none and gentle agitation) to simulate different water dynamics (stagnation and flow pass, respectively)...
May 15, 2017: Environmental Science and Pollution Research International
https://www.readbyqxmd.com/read/28496344/adherence-to-disease-modifying-therapies-and-its-impact-on-relapse-health-resource-utilization-and-costs-among-patients-with-multiple-sclerosis
#5
Jack Burks, Thomas S Marshall, Xiaolan Ye
PURPOSE: To evaluate adherence to disease-modifying therapies (DMTs) among patients with multiple sclerosis (MS) initiating oral and injectable DMTs, and to estimate the impact of adherence on relapse, health resource utilization, and medical costs. PATIENTS AND METHODS: Commercially insured MS patients (aged 18-65 years, two or more MS diagnoses, one or more DMT claims) with continuous eligibility 12 months before and after the first DMT claim date (index date) and no DMT claim during the pre-index period were identified from a large commerical claims database for the period from January 1, 2008, to September 30, 2015...
2017: ClinicoEconomics and Outcomes Research: CEOR
https://www.readbyqxmd.com/read/28483815/drosophila-dalmatian-combines-sororin-and-shugoshin-roles-in-establishment-and-protection-of-cohesion
#6
Takashi Yamada, Eri Tahara, Mai Kanke, Keiko Kuwata, Tomoko Nishiyama
Sister chromatid cohesion is crucial to ensure chromosome bi-orientation and equal chromosome segregation. Cohesin removal via mitotic kinases and Wapl has to be prevented in pericentromeric regions in order to protect cohesion until metaphase, but the mechanisms of mitotic cohesion protection remain elusive in Drosophila Here, we show that dalmatian (Dmt), an ortholog of the vertebrate cohesin-associated protein sororin, is required for protection of mitotic cohesion in flies. Dmt is essential for cohesion establishment during interphase and is enriched on pericentromeric heterochromatin...
May 8, 2017: EMBO Journal
https://www.readbyqxmd.com/read/28431632/combined-evaluation-of-personality-risk-and-coping-in-ms-patients-a-step-towards-individualized-treatment-choice-the-pericoms-study-i
#7
G Bsteh, E Monz, L Zamarian, S Hagspiel, H Hegen, M Auer, S Wurth, F Di Pauli, F Deisenhammer, T Berger
BACKGROUND: Multiple sclerosis (MS) is a chronic inflammatory neurological disease requiring disease-modifying treatment (DMT). To provide patients with the optimal individual therapeutic option, treatment recommendations should be based not only on individual disease course and DMT specific benefit-risk estimates, but also on patient's individual characteristics such as personality, risk attitude and coping strategies. However, these characteristics are difficult to objectify in clinical routine practice without the support of appropriate evaluation instruments...
May 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28427690/factors-associated-with-adherence-to-disease-modifying-therapy-in-multiple-sclerosis-an-observational-survey-from-a-referral-center-in-lithuania
#8
Neringa Duchovskiene, Dalia Mickeviciene, Giedre Jurkeviciene, Birute Dirziuviene, Renata Balnyte
AIM OF THE STUDY: To investigate adherence to disease modifying therapy (DMT) in Lithuanian population of multiple sclerosis patients and factors associated to it. METHODS: Patients receiving one of the following DMT's: Interferon β 1a (Rebif) 44 micrograms three times a week subdermally (s/c) or Interferon β 1a (Avonex) 30 micrograms weekly intramuscularly (i/m), or Interferon β 1b (Betaferon, Extavia) 250 micrograms once in two days s/c, or Glatiramer acetate (Copaxone) 20mg daily s/c, were presented with a questionnaire inquiring their demographic and clinical characteristics and adherence to treatment profile, as well as HAD scale and SF-36 questionnaire...
April 2017: Multiple Sclerosis and related Disorders
https://www.readbyqxmd.com/read/28406297/binding-analysis-of-some-classical-acetylcholinesterase-inhibitors-insights-for-a-rational-design-using-free-energy-perturbation-method-calculations-with-qm-mm-md-simulations
#9
Érica C M Nascimento, Mónica Oliva, Katarzyna Świderek, João B L Martins, Juan Andrés
In the present study, the binding free energy of some classical inhibitors (DMT, DNP, GNT, HUP, THA) with acetylcholinesterase (AChE) is calculated by means of the free energy perturbation (FEP) method based on hybrid quantum mechanics and molecular mechanics (QM/MM) potentials. The results highlight the key role of the van der Waals interaction for the inhibition process, since the contribution of this term to the binding free energy is almost as decisive as the electrostatic one. The analysis of the geometrical parameters and the interaction energy per residue along the QM/MM molecular dynamics (MD) simulations highlights the most relevant interactions in the different AChE-ligand systems, showing that the charged residues with a more prominent contribution to the interaction energy are Asp72 and Glu199, although the relative importance depends on the molecular size of the ligand...
April 24, 2017: Journal of Chemical Information and Modeling
https://www.readbyqxmd.com/read/28401525/new-world-tryptamine-hallucinogens-and-the-neuroscience-of-ayahuasca
#10
Dennis McKenna, Jordi Riba
New World indigenous peoples are noted for their sophisticated use of psychedelic plants in shamanic and ethnomedical practices. The use of psychedelic plant preparations among New World tribes is far more prevalent than in the Old World. Yet, although these preparations are botanically diverse, almost all are chemically similar in that their active principles are tryptamine derivatives, either DMT or related constituents. Part 1 of this paper provides an ethnopharmacological overview of the major tryptamine-containing New World hallucinogens...
April 2, 2017: Current Topics in Behavioral Neurosciences
https://www.readbyqxmd.com/read/28393317/impact-of-an-electronic-monitoring-device-and-behavioral-feedback-on-adherence-to-multiple-sclerosis-therapies-in-youth-results-of-a-randomized-trial
#11
E Ann Yeh, Stephanie A Grover, Victoria E Powell, Gulay Alper, Brenda L Banwell, Kim Edwards, Mark Gorman, Jennifer Graves, Timothy E Lotze, Jean K Mah, Lauren Mednick, Jayne Ness, Maya Obadia, Ruth Slater, Amy Waldman, Emmanuelle Waubant, Carolyn E Schwartz
PURPOSE: To report the results of a randomized controlled trial using an electronic monitoring device (EM) plus a motivational interviewing (MI) intervention to enhance adherence to disease-modifying therapies (DMT) in pediatric MS. METHODS: Fifty-two youth with MS (16.03 ± 2.2 years) were randomized to receive either MI (n = 25) (target intervention) or a MS medication video (n = 27) (attention control). Primary endpoint was change in adherence. Secondary outcomes included changes in quality of life, well-being and self-efficacy...
April 9, 2017: Quality of Life Research
https://www.readbyqxmd.com/read/28390507/a-cytosine-methyltransferase-ortholog-dmta-is-involved-in-the-sensitivity-of-aspergillus-flavus-to-environmental-stresses
#12
Qing-Qing Zhi, Jie-Ying Li, Qiu-Yun Liu, Zhu-Mei He
DNA methylation is an important epigenetic modification that depends on DNA methyltransferases (DMT). However, the filamentous fungus Aspergillus flavus has no detectable methylation, and role of a DMT homologue, DmtA, is undefined. Here we describe the role of the dmtA gene responding to changes in the environment by comparing knockout, point mutation, over-expression and wild type strains. Deletion of dmtA differentially affected conidia development in a media-dependent fashion, which suggests that dmtA plays an important role in conidiation...
May 2017: Fungal Biology
https://www.readbyqxmd.com/read/28385216/peakforce-qnm-afm-study-of-chitin-silica-hybrid-films
#13
Georgiy Smolyakov, Sébastien Pruvost, Laura Cardoso, Bruno Alonso, Emmanuel Belamie, Jannick Duchet-Rumeau
Chitin-silica hybrid thin films, prepared through the colloidal self-assembly of chitin nanorods and siloxane oligomers, have been studied for the first time by PeakForce QNM AFM mode to explore their structure and mechanical behaviour. The change in structure and mechanical properties of chitin-silica hybrids is mainly driven by the relative quantities in chitin nanorods and silica, expressed as the chitin volume fraction ϕchi. The coating of the chitin polysaccharide by silica leads to an increase of the nanorods diameter and films surface roughness at small ϕchi values...
June 15, 2017: Carbohydrate Polymers
https://www.readbyqxmd.com/read/28370875/adherence-to-disease-modifying-therapies-for-multiple-sclerosis-and-subsequent-hospitalizations
#14
Charity Evans, Ruth Ann Marrie, Feng Zhu, Stella Leung, Xinya Lu, Elaine Kingwell, Yinshan Zhao, Helen Tremlett
PURPOSE: The aim of this study was to examine the association between optimal adherence to first-line disease-modifying therapies (DMT) for multiple sclerosis (MS) and hospitalizations. METHODS: We used population-based administrative data from three Canadian provinces. All individuals receiving DMT (interferon-B-1b, interferon-B-1a, or glatiramer acetate) between January 1, 1996, and December 31, 2011 (British Columbia); March 31, 2012 (Manitoba); or March 31, 2014, (Saskatchewan) were included...
April 3, 2017: Pharmacoepidemiology and Drug Safety
https://www.readbyqxmd.com/read/28347772/bifunctional-opioid-nociceptin-hybrid-kgnop1-effectively-attenuates-pain-related-behaviour-in-a-rat-model-of-neuropathy
#15
Joanna Starnowska, Karel Guillemyn, Wioletta Makuch, Joanna Mika, Steven Ballet, Barbara Przewlocka
A bifunctional peptide containing an opioid and nociceptin receptor-binding pharmacophore, H-Dmt-D-Arg-Aba-β-Ala-Arg-Tyr-Tyr-Arg-Ile-Lys-NH2 (KGNOP1), was tested for its analgesic properties when administered intrathecally in naïve and chronic constriction injury (CCI)-exposed rats with neuropathy-like symptoms. KGNOP1 significantly increased the acute pain threshold, as measured by the tail-flick test, and also increased the threshold of a painful reaction to mechanical and thermal stimuli in CCI-exposed rats...
March 24, 2017: European Journal of Pharmaceutical Sciences
https://www.readbyqxmd.com/read/28335467/through-the-kinesthetic-lens-observation-of-social-attunement-in-autism-spectrum-disorders
#16
Rosemarie Samaritter, Helen Payne
This paper will present a movement-informed perspective to social attunement in Autism Spectrum Disorders (ASD). BACKGROUND: Dance movement therapy (DMT) is a psychotherapeutic intervention that is used with participants with ASD in various settings. Regular clinical outcome monitoring in an outpatient setting in the Netherlands had shown positive effects on social attunement capacities in young people with ASD. However, a systematic study of the development of social attunement movement behaviors of participants with ASD throughout a DMT intervention was not yet available...
March 18, 2017: Behavioral Sciences
https://www.readbyqxmd.com/read/28333552/treatment-of-multiple-sclerosis-during-pregnancy-safety-considerations
#17
Jan Thöne, Sandra Thiel, Ralf Gold, Kerstin Hellwig
Women with multiple sclerosis (MS) are treated early in the disease course with disease modifying therapies (DMT). Updated information is needed on pregnancy outcomes of DMT-exposed pregnancies and the effect of the drug withdrawal on MS disease activity. Areas covered: In this review, we will cover the most important updated management strategies in planning a pregnancy when having MS. Expert opinion: MS itself does not increase the risk of adverse pregnancy outcomes and does not negatively influence the long-term course of the disease...
May 2017: Expert Opinion on Drug Safety
https://www.readbyqxmd.com/read/28320170/evaluating-the-association-of-allergies-with-multiple-sclerosis-susceptibility-risk-and-disease-activity-in-a-pediatric-population
#18
Theresa Bourne, Michael Waltz, T C Casper, K Kavak, G Aaen, A Belman, L Benson, M Candee, T Chitnis, J Graves, B Greenberg, M Gorman, Y Harris, L Krupp, T Lotze, S Mar, J Ness, C Olsen, S Roalstad, M Rodriguez, J Rose, J Rubin, T Schreiner, J M Tillema, I Kahn, A Waldman, L Barcellos, E Waubant, B Weinstock-Guttman
BACKGROUND: Multiple sclerosis (MS) and allergies are both considered to be related to imbalanced Th1 and Th2 immune responses. Previous studies evaluating the relationship between MS and allergies provide conflicting results. OBJECTIVE: To assess allergies and asthma as risk factors for MS and as predictors of MS relapses in a pediatric cohort. METHODS: The environment and genetic risk factors for pediatric MS study is a national case-control project with 16 participating US sites...
April 15, 2017: Journal of the Neurological Sciences
https://www.readbyqxmd.com/read/28317084/dietary-interventions-and-multiple-sclerosis
#19
REVIEW
Ghadah Altowaijri, Allison Fryman, Vijayshree Yadav
Multiple Sclerosis (MS) is a chronic, disabling neurologic disease that has its onset in young adulthood. While the knowledge about underlying pathogenesis of MS has improved significantly over the last few decades, the exact cause still eludes us. Despite the availability of several United States Food and Drug Administration-approved disease-modifying therapies (DMT) for MS in the last two decades, the disease remains disabling for many. DMT use is limited by its partial effectiveness, significant side effects in many cases, and high cost that leads people with MS (PwMS) to look for alternative management options...
March 2017: Current Neurology and Neuroscience Reports
https://www.readbyqxmd.com/read/28315276/the-sigma-1-receptor-a-therapeutic-target-for-the-treatment-of-als
#20
Timur A Mavlyutov, Erin M Baker, Tasher M Losenegger, Jaimie R Kim, Brian Torres, Miles L Epstein, Arnold E Ruoho
The membrane bound 223 amino acid Sigma-1 Receptor (S1R) serves as a molecular chaperone and functional regulator of many signaling proteins. Spinal cord motor neuron activation occurs, in part, via large ventral horn cholinergic synapses called C-boutons/C-terminals. Chronic excitation of motor neurons and alterations in C-terminals has been associated with Amyotrophic Lateral Sclerosis (ALS ). The S1R has an important role in regulating motor neuron function. High levels of the S1R are localized in postsynaptic endoplasmic reticulum (ER) subsurface cisternae within 10-20 nm of the plasma membrane that contain muscarinic type 2 acetylcholine receptors (M2AChR), calcium activated potassium channels (Kv2...
2017: Advances in Experimental Medicine and Biology
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