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https://www.readbyqxmd.com/read/28087337/tunicamycin-impairs-olfactory-learning-and-synaptic-plasticity-in-the-olfactory-bulb
#1
Jia Tong, Fumino Okutani, Yoshihiro Murata, Mustuo Taniguchi, Toshiharu Namba, Yu-Jie Wang, Hideto Kaba
Tunicamycin (TM) induces endoplasmic reticulum (ER) stress and inhibits N-glycosylation in cells. ER stress is associated with neuronal death in neurodegenerative disorders, such as Parkinson's disease and Alzheimer's disease, and most patients complain of the impairment of olfactory recognition. Here we examined the effects of TM on aversive olfactory learning and the underlying synaptic plasticity in the main olfactory bulb (MOB). Behavioral experiments demonstrated that the intrabulbar infusion of TM disabled aversive olfactory learning without affecting short-term memory...
January 10, 2017: Neuroscience
https://www.readbyqxmd.com/read/28087243/using-deep-learning-to-investigate-the-neuroimaging-correlates-of-psychiatric-and-neurological-disorders-methods-and-applications
#2
REVIEW
Sandra Vieira, Walter H L Pinaya, Andrea Mechelli
Deep learning (DL) is a family of machine learning methods that has gained considerable attention in the scientific community, breaking benchmark records in areas such as speech and visual recognition. DL differs from conventional machine learning methods by virtue of its ability to learn the optimal representation from the raw data through consecutive nonlinear transformations, achieving increasingly higher levels of abstraction and complexity. Given its ability to detect abstract and complex patterns, DL has been applied in neuroimaging studies of psychiatric and neurological disorders, which are characterised by subtle and diffuse alterations...
January 10, 2017: Neuroscience and Biobehavioral Reviews
https://www.readbyqxmd.com/read/28079611/it-is-just-attention-deficit-hyperactivity-disorder%C3%A2-or-is-it
#3
Dana C Won, Christian Guilleminault, Peter J Koltai, Stacey D Quo, Martin T Stein, Irene M Loe
Carly is a 5-year-old girl who presents for an interdisciplinary evaluation due to behaviors at school and home suggestive of attention-deficit hyperactivity disorder (ADHD). Parent report of preschool teacher concerns was consistent with ADHD. Psychological testing showed verbal, visual-spatial, and fluid reasoning IQ scores in the average range; processing speed and working memory were below average. Carly's behavior improved when her mother left the room, and she was attentive during testing with a psychologist...
January 10, 2017: Journal of Developmental and Behavioral Pediatrics: JDBP
https://www.readbyqxmd.com/read/28076596/prevalence-of-inter-hemispheric-asymetry-in-children-and-adolescents-with-interdisciplinary-diagnosis-of-non-verbal-learning-disorder
#4
Alessandra Bernardes Caturani Wajnsztejn, Bianca Bianco, Caio Parente Barbosa
Objective: To describe clinical and epidemiological features of children and adolescents with interdisciplinary diagnosis of non-verbal learning disorder and to investigate the prevalence of inter-hemispheric asymmetry in this population group. Methods: Cross-sectional study including children and adolescents referred for interdisciplinary assessment with learning difficulty complaints, who were given an interdisciplinary diagnosis of non-verbal learning disorder...
October 2016: Einstein
https://www.readbyqxmd.com/read/28074407/youth-views-on-communication-about-adhd-and-medication-adherence
#5
Betsy Sleath, Delesha M Carpenter, Robyn Sayner, Kathleen Thomas, Larry Mann, Adam Sage, Sandra H Sulzer, Adrian D Sandler
The purpose of this study was to examine youth perceptions of attention deficit hyperactivity disorder (ADHD) communication with their pediatric providers, their reported adherence to their ADHD medications, and their desired location for an ADHD educational program. Youth ages 7 through 17 with an ADHD diagnosis were recruited. A research associate interviewed the youth. Parents completed demographic questionnaires. Seventy families participated. One-third of the youth wanted more discussion about ADHD with their providers during visits...
January 10, 2017: Community Mental Health Journal
https://www.readbyqxmd.com/read/28073047/examining-cognitive-examining-cognitive-processes-and-drinking-urge-in-ptsd
#6
Jennifer P Read, Rachel L Bachrach, Jeffrey D Wardell, Scott F Coffey
Despite their centrality to learning theories, strikingly little attention has been paid to the role of cognitions in efforts to understand associations between posttraumatic stress disorder (PTSD) and alcohol drinking. In the present study, we sought to examine information processing pathways for trauma and alcohol information, and the effects of posttraumatic stress and trauma cue exposure on these pathways. Participants were college students (N = 232; 49% female; Mage = 19.56,SD = 1.44) categorized into three diagnostic groups based on current PTSD status determined by structured clinical interview...
December 24, 2016: Behaviour Research and Therapy
https://www.readbyqxmd.com/read/28072503/posttraumatic-stress-disorder-symptoms-and-cognitive-function-in-a-large-cohort-of-middle-aged-women
#7
Jennifer A Sumner, Kaitlin Hagan, Fran Grodstein, Andrea L Roberts, Brian Harel, Karestan C Koenen
BACKGROUND: Posttraumatic stress disorder (PTSD) has been linked to cognitive decline, but research in women is generally lacking. We examined whether trauma and elevated PTSD symptoms were associated with worse cognitive function in middle-aged civilian women. A secondary objective was to investigate the possible role of depression in the relation of PTSD symptoms to cognitive function. METHODS: The sample comprised 14,029 middle-aged women in the Nurses' Health Study II...
January 10, 2017: Depression and Anxiety
https://www.readbyqxmd.com/read/28072468/a-multi-dimensional-functional-principal-components-analysis-of-eeg-data
#8
Kyle Hasenstab, Aaron Scheffler, Donatello Telesca, Catherine A Sugar, Shafali Jeste, Charlotte DiStefano, Damla Şentürk
The electroencephalography (EEG) data created in event-related potential (ERP) experiments have a complex high-dimensional structure. Each stimulus presentation, or trial, generates an ERP waveform which is an instance of functional data. The experiments are made up of sequences of multiple trials, resulting in longitudinal functional data and moreover, responses are recorded at multiple electrodes on the scalp, adding an electrode dimension. Traditional EEG analyses involve multiple simplifications of this structure to increase the signal-to-noise ratio, effectively collapsing the functional and longitudinal components by identifying key features of the ERPs and averaging them across trials...
January 10, 2017: Biometrics
https://www.readbyqxmd.com/read/28072410/pre-trauma-methylphenidate-in-rats-reduces-ptsd-like-reactions-one-month-later
#9
G Ritov, G Richter-Levin
In basic research, the etiology of fear-related pathologies, such as post-traumatic stress disorder (PTSD), is conceptualized using fear-conditioning protocols that pair environmental stimuli (that is, a conditioned stimulus-CS) with an aversive, unconditioned stimulus (US) to elicit an assessable conditioned fear response. Although pathophysiological models agree that regulatory dysfunctions in this associative process may instigate fear-related pathology, current opinions differ in regard to the nature of these dysfunctions...
January 10, 2017: Translational Psychiatry
https://www.readbyqxmd.com/read/28071963/impaired-verbal-learning-in-forensic-inpatients-with-schizophrenia-spectrum-disorder
#10
Lasha Corbett, Kenny A Karyadi, Dominique Kinney, Stephen R Nitch, Stacey Marie Bayan, Mark Williams
The present study aimed to: (a) examine verbal learning performances among forensic inpatients diagnosed with Schizophrenia Spectrum Disorder (SSD); and (b) compare verbal learning performances among forensic SSD inpatients, SSD outpatients, and a small control sample. Participants included forensic SSD inpatients (n = 71), SSD outpatients (n = 305; see Stone et al.), and a control sample from the California Verbal Learning Test-II (CVLT-II) manual (n = 78; see Delis, Kramer, Kaplan, & Ober). Five verbal learning outcomes were measured using the CVLT-II...
January 10, 2017: Applied Neuropsychology. Adult
https://www.readbyqxmd.com/read/28071689/haploinsufficiency-of-ehmt1-improves-pattern-separation-and-increases-hippocampal-cell-proliferation
#11
Marco Benevento, Charlotte A Oomen, Alexa E Horner, Houshang Amiri, Tessa Jacobs, Charlotte Pauwels, Monica Frega, Tjitske Kleefstra, Maksym V Kopanitsa, Seth G N Grant, Timothy J Bussey, Lisa M Saksida, Catharina E E M Van der Zee, Hans van Bokhoven, Jeffrey C Glennon, Nael Nadif Kasri
Heterozygous mutations or deletions of the human Euchromatin Histone Methyltransferase 1 (EHMT1) gene are the main causes of Kleefstra syndrome, a neurodevelopmental disorder that is characterized by impaired memory, autistic features and mostly severe intellectual disability. Previously, Ehmt1(+/-) heterozygous knockout mice were found to exhibit cranial abnormalities and decreased sociability, phenotypes similar to those observed in Kleefstra syndrome patients. In addition, Ehmt1(+/-) knockout mice were impaired at fear extinction and novel- and spatial object recognition...
January 10, 2017: Scientific Reports
https://www.readbyqxmd.com/read/28070599/organophosphate-neurotoxicity-to-the-voluntary-motor-system-on-the-trail-of-environment-caused-amyotrophic-lateral-sclerosis-the-known-the-misknown-and-the-unknown
#12
Samantha J Merwin, Teresa Obis, Yanelli Nunez, Diane B Re
Amyotrophic lateral sclerosis (ALS) is the most common adult-onset paralytic disorder. It is characterized by progressive degeneration of the motor neurons controlling voluntary movement. The underlying mechanisms remain elusive, a fact that has precluded development of effective treatments. ALS presents as a sporadic condition 90-95% of the time, i.e., without familial history or obvious genetic mutation. This suggests that ALS has a strong environmental component. Organophosphates (OPs) are prime candidate neurotoxicants in the etiology of ALS, as exposure to OPs was linked to higher ALS incidence among farmers, soccer players, and Gulf War veterans...
January 9, 2017: Archives of Toxicology
https://www.readbyqxmd.com/read/28069946/wnt5a-is-essential-for-hippocampal-dendritic-maintenance-and-spatial-learning-and-memory-in-adult-mice
#13
Chih-Ming Chen, Lauren L Orefice, Shu-Ling Chiu, Tara A LeGates, Samer Hattar, Richard L Huganir, Haiqing Zhao, Baoji Xu, Rejji Kuruvilla
Stability of neuronal connectivity is critical for brain functions, and morphological perturbations are associated with neurodegenerative disorders. However, how neuronal morphology is maintained in the adult brain remains poorly understood. Here, we identify Wnt5a, a member of the Wnt family of secreted morphogens, as an essential factor in maintaining dendritic architecture in the adult hippocampus and for related cognitive functions in mice. Wnt5a expression in hippocampal neurons begins postnatally, and its deletion attenuated CaMKII and Rac1 activity, reduced GluN1 glutamate receptor expression, and impaired synaptic plasticity and spatial learning and memory in 3-mo-old mice...
January 9, 2017: Proceedings of the National Academy of Sciences of the United States of America
https://www.readbyqxmd.com/read/28069663/cybercycling-effects-on-classroom-behavior-in-children-with-behavioral-health-disorders-an-rct
#14
April Bowling, James Slavet, Daniel P Miller, Sebastien Haneuse, William Beardslee, Kirsten Davison
BACKGROUND AND OBJECTIVES: Exercise is linked with improved cognition and behavior in children in clinical and experimental settings. This translational study examined if an aerobic cybercycling intervention integrated into physical education (PE) resulted in improvements in behavioral self-regulation and classroom functioning among children with mental health disabilities attending a therapeutic day school. METHODS: Using a 14-week crossover design, students (N = 103) were randomly assigned by classroom (k = 14) to receive the 7-week aerobic cybercycling PE curriculum during fall 2014 or spring 2015...
January 9, 2017: Pediatrics
https://www.readbyqxmd.com/read/28069458/loganin-enhances-long-term-potentiation-and-recovers-scopolamine-induced-learning-and-memory-impairments
#15
Eun-Sang Hwang, Hyun-Bum Kim, Seok Lee, Min-Ji Kim, Sung-Ok Lee, Seung-Moo Han, Sungho Maeng, Ji-Ho Park
Although the incidence rate of dementia is rapidly growing in the aged population, therapeutic and preventive reagents are still suboptimal. Various model systems are used for the development of such reagents in which scopolamine is one of the favorable pharmacological tools widely applied. Loganin is a major iridoid glycoside obtained from Corni fructus (Cornusofficinaliset Zucc) and demonstrated to have anti-inflammatory, anti-tumor and osteoporosis prevention effects. It has also been found to attenuate Aβ-induced inflammatory reactions and ameliorate memory deficits induced by scopolamine...
January 6, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/28069411/age-related-alterations-of-neuronal-excitability-and-voltage-dependent-ca-2-current-in-a-spontaneous-mouse-model-of-alzheimer-s-disease
#16
Hua-Long Wang, Xiao-Hui Xian, Qiao-Yun Song, Chao Pang, Jia-Lei Wang, Ming-Wei Wang, Wen-Bin Li
Alzheimer's disease (AD) is the most common age-dependent neurodegenerative disorder, characterized by a progressive dysfunction of central neurons, and senescence-accelerated mouse prone 8 (SAMP8), a spontaneous AD mouse model, appears to be an excellent model to investigate the process of AD. Previous studies have indicated that neuronal excitability is impaired in transgenic AD mice. In this study, the cognition of SAMP8 mice was tested using the passive avoidance task and Morris water maze; whole-cell current-clamp recordings were used to evaluate the neuronal excitability, including the resting membrane potential, the number of action potentials, and after-hyperpolarization; and the voltage-dependent Ca(2+) current in hippocampal slices was measured using whole-cell voltage-clamp recordings...
January 6, 2017: Behavioural Brain Research
https://www.readbyqxmd.com/read/28069149/exploring-men-s-preferred-strategies-for-learning-about-testicular-disorders-inclusive-of-testicular-cancer-a-qualitative-descriptive-study
#17
Mohamad M Saab, Margaret Landers, Josephine Hegarty
PURPOSE: Men's awareness of testicular disorders is lacking and their intention to seek help for testicular symptoms is sub-optimal. Studies conducted to explore and raise men's awareness of testicular disorders did not address their preferred learning strategies and failed to include men who are at risk for health inequities. The aim of this study was to explore, in-depth, the preferred strategies for learning about testicular disorders inclusive of testicular cancer among men who self-identify as heterosexual, gay, or bisexual...
February 2017: European Journal of Oncology Nursing: the Official Journal of European Oncology Nursing Society
https://www.readbyqxmd.com/read/28068461/a-new-prediction-model-for-evaluating-treatment-resistant-depression
#18
Alexander Kautzky, Pia Baldinger-Melich, Georg S Kranz, Thomas Vanicek, Daniel Souery, Stuart Montgomery, Julien Mendlewicz, Joseph Zohar, Alessandro Serretti, Rupert Lanzenberger, Siegfried Kasper
OBJECTIVE: Despite a broad arsenal of antidepressants, about a third of patients suffering from major depressive disorder (MDD) do not respond sufficiently to adequate treatment. Using the data pool of the Group for the Study of Resistant Depression and machine learning, we intended to draw new insights featuring 48 clinical, sociodemographic, and psychosocial predictors for treatment outcome. METHOD: Patients were enrolled starting from January 2000 and diagnosed according to DSM-IV...
January 3, 2017: Journal of Clinical Psychiatry
https://www.readbyqxmd.com/read/28067109/depression-literacy-in-women-attending-university-hospital-clinics-in-riyadh-saudi-arabia
#19
Amna Rehana Siddiqui, Sarah Mahasin, Roa Alsajjan, Marwah Hassounah, Zeinah Alhalees, Norah AlSaif, Fahad D Alosaimi, AlJohara AlQuaiz
BACKGROUND: Depression literacy in general population constitutes an ability to understand depression, with knowledge of disease, its risk factors and symptoms. High levels of depression literacy promote early intervention, potentially reducing related disability. AIM: This study investigated the depression literacy in women visitors to clinics of a tertiary care hospital in Riyadh, Saudi Arabia. METHODS: Women of 18 and more years were surveyed during their visit to primary and other healthcare clinics of a public hospital in Riyadh...
January 1, 2017: International Journal of Social Psychiatry
https://www.readbyqxmd.com/read/28066141/dehydroevodiamine%C3%A2-hcl-enhances-cognitive-function-in-memory-impaired-rat-models
#20
Ki Young Shin, Ka Young Kim, Yoo-Hun Suh
Progressive memory impairment such as that associated with depression, stroke, and Alzheimer's disease (AD) can interfere with daily life. In particular, AD, which is a progressive neurodegenerative disorder, prominently features a memory and learning impairment that is related to changes in acetylcholine and abnormal β-amyloid (Aβ) deposition in the brain. In the present study, we investigated the effects of dehydroevodiamine·HCl (DHED) on cognitive improvement and the related mechanism in memory-impaired rat models, namely, a scopolamine-induced amnesia model and a Aβ1-42-infused model...
January 2017: Korean Journal of Physiology & Pharmacology
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