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https://www.readbyqxmd.com/read/27911749/casting-a-wide-net-role-of-perineuronal-nets-in-neural-plasticity
#1
Barbara A Sorg, Sabina Berretta, Jordan M Blacktop, James W Fawcett, Hiroshi Kitagawa, Jessica C F Kwok, Marta Miquel
Perineuronal nets (PNNs) are unique extracellular matrix structures that wrap around certain neurons in the CNS during development and control plasticity in the adult CNS. They appear to contribute to a wide range of diseases/disorders of the brain, are involved in recovery from spinal cord injury, and are altered during aging, learning and memory, and after exposure to drugs of abuse. Here the focus is on how a major component of PNNs, chondroitin sulfate proteoglycans, control plasticity, and on the role of PNNs in memory in normal aging, in a tauopathy model of Alzheimer's disease, and in drug addiction...
November 9, 2016: Journal of Neuroscience: the Official Journal of the Society for Neuroscience
https://www.readbyqxmd.com/read/27900342/cacna1c-protecting-young-hippocampal-neurons-in-the-adult-brain
#2
Héctor De Jesús-Cortés, Anjali M Rajadhyaksha, Andrew A Pieper
Neuropsychiatric disease is the leading cause of disability in the United States, and fourth worldwide.(1,2) Not surprisingly, human genetic studies have revealed a common genetic predisposition for many forms of neuropsychiatric disease, potentially explaining why overlapping symptoms are commonly observed across multiple diagnostic categories. For example, the CACNA1C gene was recently identified in the largest human genome-wide association study to date as a risk loci held in common across 5 major forms of neuropsychiatric disease: bipolar disorder, schizophrenia, major depressive disorder (MDD), autism spectrum disorder and attention deficit-hyperactivity disorder...
2016: Neurogenesis (Austin, Tex.)
https://www.readbyqxmd.com/read/27894237/new-insight-in-improving-therapeutic-efficacy-of-antipsychotic-agents-an-overview-of-improved-in-vitro-and-in-vivo-performance-efficacy-upgradation-and-future-prospects
#3
Zahid Hussain, Hnin Ei Thu, Ahmad Nazrun Shuid
Psychotic disorders are severe mental disorders that rigorously affect patient personality, critical thinking, and perceptional ability. High prevalence, global dissemination and limitations of conventional pharmacological approaches compel a significant burden to the patient, medical professionals and the healthcare system. To date, numerous orally administered therapies are available for the management of depressive disorders, schizophrenia, anxiety, bipolar disorders and autism spectrum problems. However, poor water solubility, erratic oral absorption, extensive first-pass metabolism, low oral bioavailability and short half-lives are major factors which limit the pharmaceutical significance and therapeutic feasibility of these agents...
November 25, 2016: Current Drug Targets
https://www.readbyqxmd.com/read/27888397/synaptosome-associated-protein-25-snap25-gene-association-analysis-revealed-risk-variants-for-asd-in-iranian-population
#4
Mohammad Reza Safari, Mir Davood Omrani, Rezvan Noroozi, Arezou Sayad, Shaghayegh Sarrafzadeh, Alireza Komaki, Fateme Asadzadeh Manjili, Mehrdokht Mazdeh, Ali Ghaleiha, Mohammad Taheri
Autism spectrum disorder (ASD) is a common, complex neurological condition, affecting approximately 1% of people worldwide. Monogenic neurodevelopmental disorders which showed autistic behavior patterns have suggested synaptic dysfunction, as a key mechanism in the pathophysiology of ASD. Subsequently, genes involved in synaptic signaling have been investigated with a priority for candidate gene studies. A synaptosomal-associated protein 25 (SNAP25) gene plays a crucial role in the central nervous system, contributing to exocytosis by targeting and fusion of vesicles to the cell membrane...
November 26, 2016: Journal of Molecular Neuroscience: MN
https://www.readbyqxmd.com/read/27877043/polycystic-ovary-syndrome-and-mental-disorders-a-systematic-review-and-exploratory-meta-analysis
#5
REVIEW
Sergio Luís Blay, João Vicente Augusto Aguiar, Ives Cavalcante Passos
BACKGROUND: The association between depression, anxiety, and polycystic ovary syndrome (PCOS) is still unclear. Therefore, a systematic review and meta-analysis was conducted to assess the rates of comorbid psychiatric disorders among women with PCOS compared to women without it. METHODS: PubMed/MEDLINE, Embase, PsycINFO, and Web of Science databases were searched from inception to November 27, 2015. Studies were eligible for inclusion if they were original reports in which the rates of mood (bipolar disorder, dysthymia, or major depressive disorder), obsessive-compulsive spectrum disorders, trauma- and stressor-related disorders, anxiety disorders or psychotic disorders, somatic symptom and related disorders, or eating disorders had been investigated among women with an established diagnosis of PCOS and compared with women without PCOS...
2016: Neuropsychiatric Disease and Treatment
https://www.readbyqxmd.com/read/27871641/longitudinal-course-of-bipolar-disorder-in-youth-with-high-functioning-autism-spectrum-disorder
#6
Xenia Borue, Carla Mazefsky, Brian T Rooks, Michael Strober, Martin B Keller, Heather Hower, Shirley Yen, Mary Kay Gill, Rasim S Diler, David A Axelson, Benjamin I Goldstein, Tina R Goldstein, Neal Ryan, Fangzi Liao, Jeffrey I Hunt, Daniel P Dickstein, Boris Birmaher
OBJECTIVE: To provide the first longitudinal characterization of mood and psychosocial functioning in youth with comorbid bipolar (BD) and autism spectrum (ASD) disorders. METHOD: The Course and Outcome of Bipolar Youth study followed 368 youth (aged 7-17 years) with DSM-IV bipolar I (BP-I), BP-II, or Not Otherwise Specified (NOS) for, on average, 9 years using the Longitudinal Interval Follow-up Evaluation. This subgroup analysis compared youth with and without ASD on clinical presentation, percentage of time with mood symptomatology, and psychosocial functioning...
December 2016: Journal of the American Academy of Child and Adolescent Psychiatry
https://www.readbyqxmd.com/read/27863313/an-examination-of-sleep-quality-in-veterans-with-a-dual-diagnosis-of-ptsd-and-severe-mental-illness
#7
Wilson J Brown, Allison K Wilkerson, Melissa E Milanak, Peter W Tuerk, Thomas W Uhde, Bernadette M Cortese, Anouk L Grubaugh
Poor sleep quality is one of the most frequently reported symptoms by veterans with Posttraumatic Stress Disorder (PTSD) and by veterans with severe mental illness (SMI; i.e., schizophrenia spectrum disorders, bipolar disorder, major depression with or without psychotic features). However, little is known about the compounding effects of co-occurring PTSD/SMI on sleep quality in this population. Given the high rates of comorbidity and poor functional outcomes associated with sleep dysfunction, there is a need to better understand patterns of poor sleep quality in this population...
September 30, 2016: Psychiatry Research
https://www.readbyqxmd.com/read/27858347/serum-concentrations-of-mood-stabilizers-are-associated-with-memory-but-not-other-cognitive-domains-in-psychosis-spectrum-disorders-explorative-analyses-in-a-naturalistic-setting
#8
Nils Eiel Steen, Monica Aas, Carmen Simonsen, Ingrid Dieset, Martin Tesli, Mari Nerhus, Erlend Gardsjord, Ragni Mørch, Ingrid Agartz, Ingrid Melle, Anja Vaskinn, Olav Spigset, Ole A Andreassen
BACKGROUND: Mood stabilizers like lithium and anticonvulsants are used in bipolar and related psychotic disorders. There is a lack of knowledge of the relationship of these medications and cognition in the psychosis spectrum. We studied the association between serum concentration of mood stabilizers and cognitive performance in a well-characterized sample of bipolar and schizophrenia spectrum disorders. METHODS: Serum concentrations of valproate, lamotrigine, and lithium were analyzed for associations to performance on neuropsychological tests in six cognitive domains in individuals with bipolar disorder (n = 167) and in a combined sample of individuals with bipolar or schizophrenia spectrum disorders (n = 217)...
December 2016: International Journal of Bipolar Disorders
https://www.readbyqxmd.com/read/27846411/binge-eating-disorder-and-bipolar-spectrum-disorders-in-obesity-psychopathological-and-eating-behaviors-differences-according-to-comorbidities
#9
Cristina Segura-Garcia, Mariarita Caroleo, Marianna Rania, Elvira Barbuto, Flora Sinopoli, Matteo Aloi, Franco Arturi, Pasquale De Fazio
BACKGROUND: Obesity is not a mental disorder, yet DSM-5 recognizes a strong association between obesity and psychiatric syndromes. Disorders within the Bipolar Spectrum (BSD) and Binge Eating Disorder (BED) are the most frequent psychiatric disorders among obese patients. The aim of this research is to investigate the psychopathological differences and the distinctive eating behaviors that accompany these comorbidities in obese patients. METHODS: One hundred and nineteen obese patients (40 males; 79 females) underwent psychological evaluation and psychiatric interview, and a dietitian evaluated their eating habits...
November 10, 2016: Journal of Affective Disorders
https://www.readbyqxmd.com/read/27845777/newer-insights-into-the-role-of-mirna-a-tiny-genetic-tool-in-psychiatric-disorders-focus-on-post-traumatic-stress-disorder
#10
REVIEW
V V Giridharan, R A Thandavarayan, G R Fries, C Walss-Bass, T Barichello, N J Justice, M K Reddy, J Quevedo
Post-traumatic stress disorder (PTSD) is a mental disorder occurring in about 2-9% of individuals after their exposure to life-threatening events, such as severe accidents, sexual abuse, combat or a natural catastrophe. Because PTSD patients are exposed to trauma, it is likely that epigenetic modifications have an important role in disease development and prognosis. For the past two decades, abnormal expression of the epigenetic regulators microRNAs (miRs) and miR-mediated gene regulation have been given importance in a variety of human diseases, such as cancer, heart disease and viral infection...
November 15, 2016: Translational Psychiatry
https://www.readbyqxmd.com/read/27834153/childhood-trauma-is-associated-with-increased-brain-responses-to-emotionally-negative-as-compared-with-positive-faces-in-patients-with-psychotic-disorders
#11
M Aas, K Kauppi, C L Brandt, M Tesli, T Kaufmann, N E Steen, I Agartz, L T Westlye, O A Andreassen, I Melle
BACKGROUND: Childhood trauma increases risk of a range of mental disorders including psychosis. Whereas the mechanisms are unclear, previous evidence has implicated atypical processing of emotions among the core cognitive models, in particular suggesting altered attentional allocation towards negative stimuli and increased negativity bias. Here, we tested the association between childhood trauma and brain activation during emotional face processing in patients diagnosed with psychosis continuum disorders...
November 11, 2016: Psychological Medicine
https://www.readbyqxmd.com/read/27825156/psychopathological-course-typology-in-schizophrenia-spectrum-disorders-a-heuristic-approach-in-a-sample-of-100-patients
#12
Moritz E Wigand, Fabian U Lang, Thomas Becker, Thomas G Schulze, Werner Strik, Markus Jäger
BACKGROUND: Despite several previous attempts at subtyping schizophrenia, a typology that reflects neurobiological knowledge and reliably predicts course and outcome is lacking. We applied the system-specific concept of the Bern Psychopathology Scale (BPS) to generate a course typology based on three domains: language, affectivity, and motor behaviour. SAMPLING AND METHODS: A cohort of 100 patients with schizophrenia or schizoaffective disorders according to DSM-IV criteria underwent psychopathological assessment, and all their available medical records were retrospectively analysed on the basis of the BPS...
November 9, 2016: Psychopathology
https://www.readbyqxmd.com/read/27821338/electrochemical-acidification-of-kraft-black-liquor-by-electrodialysis-with-bipolar-membrane-ion-exchange-membrane-fouling-identification-and-mechanisms
#13
Maryam Haddad, Sergey Mikhaylin, Laurent Bazinet, Oumarou Savadogo, Jean Paris
Integrated forest biorefinery offers promising pathways to sustainably diversify the revenue of pulp and paper industry. In this context, lignin can be extracted from a residual stream of Kraft pulping process, called black liquor, and subsequently converted into a wide spectrum of bio-based products. Electrochemical acidification of Kraft black liquor by electrodialysis with bipolar membrane results in lignin extraction and caustic soda production. Even though the implementation of this method requires less chemicals than the chemical acidification process, fouling of the ion exchange membranes and especially bipolar membrane impairs its productivity...
October 11, 2016: Journal of Colloid and Interface Science
https://www.readbyqxmd.com/read/27816931/underlying-role-of-mitochondrial-mutagenesis-in-the-pathogenesis-of-a-disease-and-current-approaches-for-translational-research
#14
Maria Paraskevaidi, Pierre L Martin-Hirsch, Maria Kyrgiou, Francis L Martin
Mitochondrial diseases have been extensively investigated over the last three decades, but many questions regarding their underlying aetiologies remain unanswered. Mitochondrial dysfunction is not only responsible for a range of neurological and myopathy diseases but also considered pivotal in a broader spectrum of common diseases such as epilepsy, autism and bipolar disorder. These disorders are a challenge to diagnose and treat, as their aetiology might be multifactorial. In this review, the focus is placed on potential mechanisms capable of introducing defects in mitochondria resulting in disease...
November 5, 2016: Mutagenesis
https://www.readbyqxmd.com/read/27816074/role-of-reward-sensitivity-and-processing-in-major-depressive-and-bipolar-spectrum-disorders
#15
Lauren B Alloy, Thomas Olino, Rachel D Freed, Robin Nusslock
Since Costello's (1972) seminal Behavior Therapy article on loss of reinforcers or reinforcer effectiveness in depression, the role of reward sensitivity and processing in both depression and bipolar disorder has become a central area of investigation. In this article, we review the evidence for a model of reward sensitivity in mood disorders, with unipolar depression characterized by reward hyposensitivity and bipolar disorders by reward hypersensitivity. We address whether aberrant reward sensitivity and processing are correlates of, mood-independent traits of, vulnerabilities for, and/or predictors of the course of depression and bipolar spectrum disorders, covering evidence from self-report, behavioral, neurophysiological, and neural levels of analysis...
September 2016: Behavior Therapy
https://www.readbyqxmd.com/read/27810616/exposure-to-tobacco-smoke-in-utero-or-during-early-childhood-and-risk-of-hypomania-prospective-birth-cohort-study
#16
D F Mackay, J J Anderson, J P Pell, S Zammit, D J Smith
OBJECTIVES: Using data from a prospective birth cohort, we aimed to test for an association between exposure to tobacco smoke in utero or during early development and the experience of hypomania assessed in young adulthood. METHODS: We used data on 2957 participants from a large birth cohort (Avon longitudinal study of parents and children [ALSPAC]). The primary outcome of interest was hypomania, and the secondary outcome was "hypomania plus previous psychotic experiences (PE)"...
October 28, 2016: European Psychiatry: the Journal of the Association of European Psychiatrists
https://www.readbyqxmd.com/read/27803648/reelin-and-neuropsychiatric-disorders
#17
REVIEW
Kazuhiro Ishii, Ken-Ichiro Kubo, Kazunori Nakajima
Proper neuronal migration and laminar formation during corticogenesis is essential for normal brain function. Disruption of these developmental processes is thought to be involved in the pathogenesis of some neuropsychiatric conditions. Especially, Reelin, a glycoprotein mainly secreted by the Cajal-Retzius cells and a subpopulation of GABAergic interneurons, has been shown to play a critical role, both during embryonic and postnatal periods. Indeed, animal studies have clearly revealed that Reelin is an essential molecule for proper migration of cortical neurons and finally regulates the cell positioning in the cortex during embryonic and early postnatal stages; by contrast, Reelin signaling is closely involved in synaptic function in adulthood...
2016: Frontiers in Cellular Neuroscience
https://www.readbyqxmd.com/read/27792692/-white-matter-hyperintensities-and-cognitive-function-in-patients-with-late-onset-mania
#18
Jesús Ramírez-Bermúdez, Roger Carrillo-Mezo, Carmen Atriano, Dora Sánchez, Óscar Marrufo-Meléndez, Cecilia Berlanga, Adilia Guadamuz, Jesús Taboada, Camilo Ríos
Bipolar disorder is characterized by affective episodes in the mania-depression spectrum. Ninety per cent of the cases have an onset before age 50. In the patients with late onset mania, white matter hyperintensities (WMH) may be seen in the MRI FLAIR sequence, although these are of uncertain significance. A case-control study was done, including patients with late onset mania attended at the National Institute of Neurology and Neurosurgery, as well as healthy controls which were paired by age, sex, and academic level...
September 2016: Gaceta Médica de México
https://www.readbyqxmd.com/read/27789186/novel-gene-brain-structure-relationships-in-psychotic-disorder-revealed-using-parallel-independent-component-analyses
#19
Neeraj Tandon, Pranav Nanda, Jaya L Padmanabhan, Ian T Mathew, Shaun M Eack, Balaji Narayanan, Shashwath A Meda, Sarah E Bergen, Gualbert Ruaño, Andreas Windemuth, Mohan Kocherla, Tracey L Petryshen, Brett Clementz, John Sweeney, Carol Tamminga, Godfrey Pearlson, Matcheri S Keshavan
BACKGROUND: Schizophrenia, schizoaffective disorder, and psychotic bipolar disorder overlap with regard to symptoms, structural and functional brain abnormalities, and genetic risk factors. Neurobiological pathways connecting genes to clinical phenotypes across the spectrum from schizophrenia to psychotic bipolar disorder remain largely unknown. METHODS: We examined the relationship between structural brain changes and risk alleles across the psychosis spectrum in the multi-site Bipolar-Schizophrenia Network for Intermediate Phenotypes (B-SNIP) cohort...
October 24, 2016: Schizophrenia Research
https://www.readbyqxmd.com/read/27788777/test-for-association-of-common-variants-in-grm7-with-alcohol-consumption
#20
Whitney E Melroy-Greif, Csaba Vadasz, Helen M Kamens, Matthew B McQueen, Robin P Corley, Michael C Stallings, Christian J Hopfer, Kenneth S Krauter, Sandra A Brown, John K Hewitt, Marissa A Ehringer
Recent work using a mouse model has identified the glutamate metabotropic receptor 7 (Grm7) gene as a strong candidate gene for alcohol consumption. Although there has been some work examining the effect of human glutamate metabotropic receptor 7 (GRM7) polymorphisms on human substance use disorders, the majority of the work has focused on other psychiatric disorders such as ADHD, major depressive disorder, schizophrenia, bipolar disorder, panic disorder, and autism spectrum disorders. The current study aimed to evaluate evidence for association between GRM7 and alcohol behaviors in humans using a single nucleotide polymorphism (SNP) approach, as well as a gene-based approach...
September 2016: Alcohol
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