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https://www.readbyqxmd.com/read/28550793/acute-gonadotropin-releasing-hormone-agonist-treatment-enhances-extinction-memory-in-male-rats
#1
L Y Maeng, M B Taha, K K Cover, S S Glynn, M Murillo, K Lebron-Milad, M R Milad
Leuprolide acetate (LEU), also known as Lupron, is commonly used to treat prostate cancer in men. As a gonadotropin-releasing hormone (GnRH) receptor agonist, it initially stimulates the release of gonadal hormones, testosterone (T) and estradiol. This surge eventually suppresses these hormones, preventing the further growth and spread of cancer cells. Individuals receiving this treatment often report anxiety and cognitive changes, but LEU's effects on the neural mechanisms that are involved in anxiety during the trajectory of treatment are not well known...
May 17, 2017: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/28550500/acute-and-long-term-effects-of-intracerebroventricular-administration-of-%C3%AE-ketoisocaproic-acid-on-oxidative-stress-parameters-and-cognitive-and-noncognitive-behaviors
#2
Luciane Taschetto, Giselli Scaini, Hugo G Zapelini, Ândrea C Ramos, Giulia Strapazzon, Vanessa M Andrade, Gislaine Z Réus, Monique Michels, Felipe Dal-Pizzol, João Quevedo, Patrícia F Schuck, Gustavo C Ferreira, Emilio L Streck
Maple Syrup Urine Disease (MSUD) is biochemically characterized by elevated levels of leucine, isoleucine and valine, as well as their corresponding transaminated branched-chain α-keto acids in tissue and biological fluids. Neurological symptoms and cerebral abnormalities, whose mechanisms are still unknown, are typical of this metabolic disorder. In the present study, we evaluated the early effects (1 h after injection) and long-term effects (15 days after injection) of a single intracerebroventricular administration of α-ketoisocaproic acid (KIC) on oxidative stress parameters and cognitive and noncognitive behaviors...
May 27, 2017: Metabolic Brain Disease
https://www.readbyqxmd.com/read/28550458/what-happened-in-dialogical-classes-of-intercultural-understanding-an-analysis-of-exchanging-classes-between-chinese-and-japanese-university-students
#3
Chengnan Pian
Chinese and Japanese university students make an exchanging of opinions regarding the topic "making a mobile phone call in the bus". Both sides of the communication can achieve different changes of cognition through different ways. This paper focuses on Chinese university students, and analyzes their cognition of the traffic etiquette in Japan and China. Unlike Japanese university students' change of cognition, Chinese university students have made more negative evaluation on Japanese traffic etiquette after the communication...
May 26, 2017: Integrative Psychological & Behavioral Science
https://www.readbyqxmd.com/read/28550249/avn-492-a-novel-highly-selective-5-ht6r-antagonist-preclinical-evaluation
#4
Alexandre V Ivachtchenko, Ilya Okun, Vladimir Aladinskiy, Yan Ivanenkov, Angela Koryakova, Ruben Karapetyan, Oleg Mitkin, Ramiz Salimov, Andrey Ivashchenko
Discovery of 5-HT6 receptor subtype and its exclusive localization within the central nervous system led to extensive investigations of its role in Alzheimer's disease, schizophrenia, and obesity. In the present study, we present preclinical evaluation of a novel highly-potent and highly-selective 5-HT6R antagonist, AVN-492. The affinity of AVN-492 to bind to 5-HT6R (Ki = 91 pM) was more than three orders of magnitude higher than that to bind to the only other target, 5-HT2BR, (Ki = 170 nM). Thus, the compound displayed great 5-HT6R selectivity against all other serotonin receptor subtypes, and is extremely specific against any other receptors such as adrenergic, GABAergic, dopaminergic, histaminergic, etc...
May 25, 2017: Journal of Alzheimer's Disease: JAD
https://www.readbyqxmd.com/read/28550099/viral-delivery-of-c9orf72-hexanucleotide-repeat-expansions-in-mice-lead-to-repeat-length-dependent-neuropathology-and-behavioral-deficits
#5
Saul Herranz-Martin, Jayanth Chandran, Katherine Lewis, Padraig Mulcahy, Adrian Higginbottom, Callum Walker, Isabel Martinez-Pena Y Valenzuela, Ross A Jones, Ian Coldicott, Tommaso Iannitti, Mohammed Akaaboune, Sherif F El-Khamisy, Thomas H Gillingwater, Pamela J Shaw, Mimoun Azzouz
Intronic GGGGCC repeat expansions in C9orf72 are the most common genetic cause of amyotrophic lateral sclerosis (ALS) and frontotemporal dementia (FTD). Two major pathologies stemming from the hexanucleotide RNA expansions (HREs) have been identified in postmortem tissue: intracellular RNA foci and repeat-associated non-ATG dependent (RAN) dipeptides, though it is unclear how these and other hallmarks of disease contribute to the pathophysiology of neuronal injury. Here we generated two novel lines of mice that overexpress either 10 pure or 102 interrupted G4C2 repeats mediated by adeno-associated virus (AAV) and characterized relevant pathology and disease-related behavioral phenotypes...
May 26, 2017: Disease Models & Mechanisms
https://www.readbyqxmd.com/read/28549937/is-learning-episodic-memory-distinct-cognitive-and-neuroanatomic-correlates-of-immediate-recall-during-learning-trials-in-neurologically-normal-aging-and-neurodegenerative-cohorts
#6
K B Casaletto, G Marx, S Dutt, J Neuhaus, R Saloner, L Kritikos, B Miller, J H Kramer
Although commonly interpreted as a marker of episodic memory during neuropsychological exams, relatively little is known regarding the neurobehavior of "total learning" immediate recall scores. Medial temporal lobes are clearly associated with delayed recall performances, yet immediate recall may necessitate networks beyond traditional episodic memory. We aimed to operationalize cognitive and neuroanatomic correlates of total immediate recall in several aging syndromes. Demographically-matched neurologically normal adults (n=91), individuals with Alzheimer's disease (n=566), logopenic variant primary progressive aphasia (PPA) (n=34), behavioral variant frontotemporal dementia (n=97), semantic variant PPA (n=71), or nonfluent/agrammatic variant PPA (n=39) completed a neurocognitive battery, including the CVLT-Short Form trials 1-4 Total Immediate Recall; a majority subset also completed a brain MRI...
May 23, 2017: Neuropsychologia
https://www.readbyqxmd.com/read/28549887/fluvoxamine-maleate-effects-on-dopamine-signaling-in-the-prefrontal-cortex-of-stressed-parkinsonian-rats-implications-for-learning-and-memory
#7
Ernest Dallé, Willie M U Daniels, Musa V Mabandla
Parkinson's disease (PD) is also associated with cognitive impairment and reduced extrinsic supply of dopamine (DA) to the prefrontal cortex (PFC). In the present study, we looked at whether exposure to early life stress reduces DA and serotonin (5-HT) concentration in the PFC thus leading to enhanced cognitive impairment in a Parkinsonian rat model. Maternal separation was the stressor used to develop an animal model for early life stress that has chronic effects on brain and behavior. Sprague-Dawley rats were treated with the antidepressant Fluvoxamine maleate (FM) prior to a unilateral 6-hydroxydopamine (6-OHDA) lesion to model motor deficits in rats...
May 23, 2017: Brain Research Bulletin
https://www.readbyqxmd.com/read/28549796/development-of-the-error-monitoring-system-from-ages-9-35-unique-insight-provided-by-mri-constrained-source-localization-of-eeg
#8
George A Buzzell, John E Richards, Lauren K White, Tyson V Barker, Daniel S Pine, Nathan A Fox
The ability to self-detect errors and dynamically adapt behavior is a cornerstone of higher-level cognition, requiring coordinated activity from a network of neural regions. However, disagreement exists over how the error-monitoring system develops throughout adolescence and early adulthood. The present report leveraged MRI-constrained EEG source localization to detail typical development of the error-monitoring system in a sample of 9-35 year-olds (n=43). Participants performed a flanker task while high-density EEG was recorded; structural MRIs were also acquired for all participants...
May 23, 2017: NeuroImage
https://www.readbyqxmd.com/read/28549713/childhood-opsoclonus-myoclonus-syndrome-a-case-series-from-tunisia
#9
Nedia Ben Achour, Saloua Mrabet, Ibtihel Rebai, Ines Abid, Hanene Benrhouma, Hedia Klaa, Aida Rouissi, Ichraf Kraoua, Ilhem Ben Youssef Turki
INTRODUCTION: Opsoclonus myoclonus syndrome (OMS) is a rare immune-mediated disorder characterized by opsoclonus, myoclonus, ataxia and behavioral changes. The aim of our study was to investigate the epidemiology, clinical features, etiological aspects and outcome of OMS in Tunisian children. METHODS: We conducted a retrospective study over 11years (2005-2016) including all patients aged under 18years who were managed for newly diagnosed OMS in a tertiary care research centre for children with neurological symptoms...
May 23, 2017: Brain & Development
https://www.readbyqxmd.com/read/28549649/prolonged-deficits-of-associative-motor-learning-in-cynomolgus-monkeys-after-long-term-administration-of-phencyclidine
#10
Bing Wu, Xu-Dong Zhao, Hui-Min Zhang, Xuan Li, Guang-Yan Wu, Ying-Shan Yang, Chao-Yang Tian, Jian-Feng Sui
Phencyclidine (PCP) is a potent drug of abuse that induces sustained schizophrenia-like symptoms in humans by blocking neurotransmission at N-methyl-D-aspartate (NMDA)-type glutamate receptors. Alterations in NMDA receptor function have been linked to numerous behavioral deficits and cognitive dysfunction. Classical eye-blink conditioning (EBC), including delay (dEBC) and trace (tEBC) pafadigms, provides an effective means to study the neurobiology of associative motor learning in rodents, mammals and primates...
May 23, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28549526/mobile-phone-ecological-momentary-assessment-of-daily-stressors-among-people-living-with-hiv-elucidating-factors-underlying-health-related-challenges-in-daily-routines
#11
Shu Farmer, Deborah Mindry, W Scott Comulada, Dallas Swendeman
Stressful life events and daily hassles affect people living with HIV (PLWH). However, capturing stress-related events and cognitive impairment is often plagued with recall biases. Incorporating reliable information technology, such as mobile phones, can be a resourceful method for measuring health behaviors (MHB). We report findings from an MHB pilot study with 32 African American, Latino/Hispanic, and White PLWH from Los Angeles. Participants reported perceived stressors in their daily routines using a smartphone Ecological Momentary Assessment (EMA) application...
April 12, 2017: Journal of the Association of Nurses in AIDS Care: JANAC
https://www.readbyqxmd.com/read/28549484/the-effects-of-a-psychological-intervention-directed-at-optimizing-immune-function-study-protocol-for-a-randomized-controlled-trial
#12
Lemmy Schakel, Dieuwke S Veldhuijzen, Henriët van Middendorp, Corine Prins, Simone A Joosten, Tom H M Ottenhoff, Leo G Visser, Andrea W M Evers
BACKGROUND: Previous research has provided evidence for the link between psychological processes and psychophysiological health outcomes. Psychological interventions, such as face-to-face or online cognitive behavioral therapy (CBT) and serious games aimed at improving health, have shown promising results in promoting health outcomes. Few studies so far, however, have examined whether Internet-based CBT combined with serious gaming elements is effective in modulating health outcomes. Moreover, studies often did not incorporate psychophysiological or immunological challenges in order to gain insight into physiological responses to real-life challenges after psychological interventions...
May 26, 2017: Trials
https://www.readbyqxmd.com/read/28549424/high-intensity-therapist-guided-internet-based-cognitive-behavior-therapy-for-alcohol-use-disorder-a-pilot-study
#13
Christopher Sundström, Martin Kraepelien, Niels Eék, Claudia Fahlke, Viktor Kaldo, Anne H Berman
BACKGROUND: A large proportion of individuals with alcohol problems do not seek psychological treatment, but access to such treatment could potentially be increased by delivering it over the Internet. Cognitive behavior therapy (CBT) is widely recognized as one of the psychological treatments for alcohol problems for which evidence is most robust. This study evaluated a new, therapist-guided internet-based CBT program (entitled ePlus) for individuals with alcohol use disorders. METHODS: Participants in the study (n = 13) were recruited through an alcohol self-help web site ( www...
May 26, 2017: BMC Psychiatry
https://www.readbyqxmd.com/read/28549355/predictors-of-language-gains-among-school-age-children-with-language-impairment-in-the-public-schools
#14
Laura M Justice, Hui Jiang, Jessica A Logan, Mary Beth Schmitt
Purpose: This study aimed to identify child-level characteristics that predict gains in language skills for children with language impairment who were receiving therapy within the public schools. The therapy provided represented business-as-usual speech/language treatment provided by speech-language pathologists in the public schools. Method: The sample included 272 kindergartners and first-graders with language impairment who participated in a larger study titled "Speech-Therapy Experiences in the Public Schools...
May 26, 2017: Journal of Speech, Language, and Hearing Research: JSLHR
https://www.readbyqxmd.com/read/28549161/cigarette-smoking-cessation-intervention-for-buprenorphine-treatment-patients
#15
Sharon M Hall, Gary Humfleet, James Gasper, Kevin L Delucchi, David Hersh, Joseph Guydish
Introduction: Patients receiving Medication Assisted Therapy (MAT) for opioid use disorder have high cigarette smoking rates. Cigarette smoking interventions have had limited success. We evaluated an intervention to increase cigarette abstinence rates in patients receiving buprenorphine-assisted therapy. Methods: Cigarette smokers (N=175; 78% male; 69% Caucasian; 20% Hispanic), recruited from a buprenorphine clinic were randomly assigned to either an extended innovative system intervention (E-ISI) or to Standard Treatment Control (STC)...
May 26, 2017: Nicotine & Tobacco Research: Official Journal of the Society for Research on Nicotine and Tobacco
https://www.readbyqxmd.com/read/28548888/an-interdisciplinary-intervention-for-fear-of-falling-lessons-learned-from-two-case-studies
#16
James B Robinson, Julie Loebach Wetherell
This article describes two case studies using an interdisciplinary intervention for homebound older adults who experience fear of falling, resulting in debility and isolation. The patients discussed received separate home visits from a physical therapist (two and four visits) and psychologist (six and eight visits) and intervention components included an initial assessment of physical ability, prescription of home exercise program, exposure therapy, and cognitive restructuring. Both patients reported satisfaction with the fear of falling intervention and showed improved ability to walk, both in distance and in requiring less assistance...
May 12, 2017: Clinical Gerontologist
https://www.readbyqxmd.com/read/28548707/phenotypes-and-genotypes-in-individuals-with-smc1a-variants
#17
Sylvia Huisman, Paul A Mulder, Egbert Redeker, Ingrid Bader, Anne-Marie Bisgaard, Alice Brooks, Anna Cereda, Constanza Cinca, Dinah Clark, Valerie Cormier-Daire, Matthew A Deardorff, Karin Diderich, Mariet Elting, Anthonie van Essen, David Fitz Patrick, Cristina Gervasini, Gabriele Gillessen-Kaesbach, Katta M Girisha, Yvonne Hilhorst-Hofstee, Saskia Hopman, Denise Horn, Mala Isrie, Sandra Jansen, Cathrine Jespersgaard, Frank J Kaiser, Maninder Kaur, Tjitske Kleefstra, Ian D Krantz, Phillis Lakeman, Annemiek Landlust, Davor Lessel, Caroline Michot, Jo Moss, Sarah E Noon, Chris Oliver, Ilaria Parenti, Juan Pie, Feliciano J Ramos, Claudine Rieubland, Silvia Russo, Angelo Selicorni, Zeynep Tümer, Rieneke Vorstenbosch, Tara L Wenger, Ingrid van Balkom, Sigrid Piening, Jolanta Wierzba, Raoul C Hennekam
SMC1A encodes one of the proteins of the cohesin complex. SMC1A variants are known to cause a phenotype resembling Cornelia de Lange syndrome (CdLS). Exome sequencing has allowed recognizing SMC1A variants in individuals with encephalopathy with epilepsy who do not resemble CdLS. We performed an international, interdisciplinary study on 51 individuals with SMC1A variants for physical and behavioral characteristics, and compare results to those in 67 individuals with NIPBL variants. For the Netherlands all known individuals with SMC1A variants were studied, both with and without CdLS phenotype...
May 26, 2017: American Journal of Medical Genetics. Part A
https://www.readbyqxmd.com/read/28548609/a-pilot-study-to-validate-measures-of-the-theory-of-reasoned-action-for-organ-donation-behavior
#18
Shui Hung Wong, Amy Yin Man Chow
The present study aimed at taking the first attempt in validating the measures generated based on the theory of reasoned action (TRA). A total of 211 university students participated in the study, 95 were included in the exploratory factor analysis and 116 were included in the confirmatory factor analysis. The TRA measurements were established with adequate psychometric properties, internal consistency and construct validity. Findings also suggested that attitude towards organ donation has both a cognitive and affective nature, while the subjective norm of the family seems to be important to students' views on organ donation...
May 26, 2017: Death Studies
https://www.readbyqxmd.com/read/28548578/emotional-cognitive-and-behavioral-reactions-to-paranoid-symptoms-in-clinical-and-nonclinical-populations
#19
Célia Barreto Carvalho, Carolina da Motta, José Pinto-Gouveia, Ermelindo Manuel Bernardo Peixoto
BACKGROUND: Paranoia is a disruptive belief that can vary across a continuum, ranging from persecutory delusions presented in clinical settings to paranoid cognitions that are highly prevalent in the general population. The literature suggests that paranoid thoughts derive from the activation of a paranoid schema or information processing biases that can be sensitive to socially ambiguous stimuli and influence the processing of threatening situations. METHODS: Four groups (schizophrenic participants in active psychotic phases, n=61; stable participants in remission, n=30; participants' relatives, n=32; and, healthy controls, n=64) were assessed with self-report questionnaires to determine how the reactions to paranoia of clinical patients differ from healthy individuals...
2017: Clinical Schizophrenia & related Psychoses
https://www.readbyqxmd.com/read/28548462/neurocognitive-mechanisms-of-real-world-autobiographical-memory-retrieval-insights-from-studies-using-wearable-camera-technology
#20
REVIEW
Tiffany E Chow, Jesse Rissman
In recent years, investigation into the cognitive and neural mechanisms of autobiographical memory has been aided by the use of experimental paradigms incorporating wearable camera technology. By effortlessly capturing first-person images of one's life events, these cameras provide a rich set of naturalistic stimuli that can later be used to trigger the recall of specific episodes. Here, we chronicle the development and progression of such studies in behavioral and neuroimaging examinations of both clinical and nonclinical adult populations...
May 2017: Annals of the New York Academy of Sciences
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