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Antipsychotic response

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https://www.readbyqxmd.com/read/27933367/antipsychotic-inductors-of-brain-hypothermia-and-torpor-like-states-perspectives-of-application
#1
REVIEW
Yury S Tarahovsky, Irina S Fadeeva, Natalia P Komelina, Maxim O Khrenov, Nadezhda M Zakharova
Hypothermia and hypometabolism (hypometabothermia) normally observed during natural hibernation and torpor, allow animals to protect their body and brain against the damaging effects of adverse environment. A similar state of hypothermia can be achieved under artificial conditions through physical cooling or pharmacological effects directed at suppression of metabolism and the processes of thermoregulation. In these conditions called torpor-like states, the mammalian ability to recover from stroke, heart attack, and traumatic injuries greatly increases...
December 8, 2016: Psychopharmacology
https://www.readbyqxmd.com/read/27933003/altered-insular-function-during-aberrant-salience-processing-in-relation-to-the-severity-of-psychotic-symptoms
#2
Anna Walter, Claudia Suenderhauf, Renata Smieskova, Claudia Lenz, Fabienne Harrisberger, André Schmidt, Tobias Vogel, Undine E Lang, Anita Riecher-Rössler, Anne Eckert, Stefan Borgwardt
There is strong evidence for abnormal salience processing in patients with psychotic experiences. In particular, there are indications that the degree of aberrant salience processing increases with the severity of positive symptoms. The aim of the present study was to elucidate this relationship by means of brain imaging. Functional magnetic resonance imaging was acquired to assess hemodynamic responses during the Salience Attribution Test, a paradigm for reaction time that measures aberrant salience to irrelevant stimulus features...
2016: Frontiers in Psychiatry
https://www.readbyqxmd.com/read/27932945/monoaminergic-and-histaminergic-strategies-and-treatments-in-brain-diseases
#3
REVIEW
Giuseppe Di Giovanni, Dubravka Svob Strac, Montse Sole, Mercedes Unzeta, Keith F Tipton, Dorotea Mück-Šeler, Irene Bolea, Laura Della Corte, Matea Nikolac Perkovic, Nela Pivac, Ilse J Smolders, Anna Stasiak, Wieslawa A Fogel, Philippe De Deurwaerdère
The monoaminergic systems are the target of several drugs for the treatment of mood, motor and cognitive disorders as well as neurological conditions. In most cases, advances have occurred through serendipity, except for Parkinson's disease where the pathophysiology led almost immediately to the introduction of dopamine restoring agents. Extensive neuropharmacological studies first showed that the primary target of antipsychotics, antidepressants, and anxiolytic drugs were specific components of the monoaminergic systems...
2016: Frontiers in Neuroscience
https://www.readbyqxmd.com/read/27932884/a-randomized-trial-of-aripiprazole-vs-blonanserin-for-the-treatment-of-acute-schizophrenia-and-related-disorders
#4
Taro Kishi, Yuki Matsuda, Shinji Matsunaga, Tomohiko Mukai, Masatsugu Moriwaki, Hideaki Tabuse, Kiyoshi Fujita, Nakao Iwata
OBJECTIVE: There has been no direct comparison of aripiprazole and blonanserin for schizophrenia treatment. We conducted a 24-week, rater-masked, randomized trial of aripiprazole (6-30 mg/d) vs blonanserin (4-24 mg/d) in schizophrenia patients who were not taking any antipsychotic medication for more than 2 weeks before enrollment (UMIN000011194). METHODS: The primary outcome measure for efficacy was improvement of Positive and Negative Syndrome Scale (PANSS) total score at week 24...
2016: Neuropsychiatric Disease and Treatment
https://www.readbyqxmd.com/read/27931900/dimensions-of-schizophrenia-and-their-time-course-of-response-to-a-second-generation-antipsychotic-olanzapine-a-clinical-study
#5
Badari Birur, Jagadisha Thirthalli, N Janakiramaiah, Richard C Shelton, Bangalore N Gangadhar
BACKGROUND: The pattern of symptom response to second generation antipsychotics (SGAs) has not been studied extensively. Understanding the time course of symptom response would help to rationally monitor patient progress. OBJECTIVE: To determine the short-term differential time course of response of symptom dimensions of first episode schizophrenia viz., negative, positive symptoms and 5 factors of anergia, thought disturbance, activation, paranoid-belligerence and depression to treatment with SGA olanzapine...
December 2016: Asian Journal of Psychiatry
https://www.readbyqxmd.com/read/27922589/does-adding-a-second-antipsychotic-to-clozapine-improve-clinical-response-in-resistant-schizophrenia
#6
Magdalena Jiménez-Cornejo, Gonzalo Munizaga, David Aceituno
Clozapine constitutes the treatment of choice in patients with schizophrenia with persisting symptoms despite antipsychotics at adequate dose and treatment duration. However, an important proportion does not respond to optimal doses of clozapine, so the addition of a second antipsychotic might increase clinical response. Searching in Epistemonikos database, which is maintained by screening multiple databases, we identified 17 systematic reviews comprising 62 studies addressing the question of this article, including 26 randomized trials...
December 2, 2016: Medwave
https://www.readbyqxmd.com/read/27919211/development-of-mlr-and-svm-aided-qsar-models-to-identify-common-sar-of-gaba-uptake-herbal-inhibitors-used-in-the-treatment-of-schizophrenia
#7
Sahila Mohammed Marunnan, Babitha Pallikkara Pulikka, V K Gopalakrishnan, Srinivas Bandaru, Mukesh Yadav, Anuraj Nayarisseri, Victor Arokia Doss
Deficits in GABAnergic system is implicated in the pathophysiology of schizophrenia. Available antipsychotics that target GABA receptor form a desirable therapeutic strategy in the treatment regimen of schizophrenia but, unfortunately, suffers serious setback due to their prolonged side effects. The present investigation focuses on developing QSAR models from the biological activity of herbal compounds and their derivatives that promise to be alternative candidates to GABA uptake inhibitors. Three sets of compounds were undertaken in the study to develop the QSAR models...
December 5, 2016: Current Neuropharmacology
https://www.readbyqxmd.com/read/27919182/treatment-resistant-schizophrenia-treatment-response-and-resistance-in-psychosis-trrip-working-group-consensus-guidelines-on-diagnosis-and-terminology
#8
Oliver D Howes, Rob McCutcheon, Ofer Agid, Andrea de Bartolomeis, Nico J M van Beveren, Michael L Birnbaum, Michael A P Bloomfield, Rodrigo A Bressan, Robert W Buchanan, William T Carpenter, David J Castle, Leslie Citrome, Zafiris J Daskalakis, Michael Davidson, Richard J Drake, Serdar Dursun, Bjørn H Ebdrup, Helio Elkis, Peter Falkai, W Wolfgang Fleischacker, Ary Gadelha, Fiona Gaughran, Birte Y Glenthøj, Ariel Graff-Guerrero, Jaime E C Hallak, William G Honer, James Kennedy, Bruce J Kinon, Stephen M Lawrie, Jimmy Lee, F Markus Leweke, James H MacCabe, Carolyn B McNabb, Herbert Meltzer, Hans-Jürgen Möller, Shinchiro Nakajima, Christos Pantelis, Tiago Reis Marques, Gary Remington, Susan L Rossell, Bruce R Russell, Cynthia O Siu, Takefumi Suzuki, Iris E Sommer, David Taylor, Neil Thomas, Alp Üçok, Daniel Umbricht, James T R Walters, John Kane, Christoph U Correll
OBJECTIVE: Research and clinical translation in schizophrenia is limited by inconsistent definitions of treatment resistance and response. To address this issue, the authors evaluated current approaches and then developed consensus criteria and guidelines. METHOD: A systematic review of randomized antipsychotic clinical trials in treatment-resistant schizophrenia was performed, and definitions of treatment resistance were extracted. Subsequently, consensus operationalized criteria were developed through 1) a multiphase, mixed methods approach, 2) identification of key criteria via an online survey, and 3) meetings to achieve consensus...
December 6, 2016: American Journal of Psychiatry
https://www.readbyqxmd.com/read/27918972/a-typical-antipsychotics-normalize-low-gamma-evoked-oscillations-in-patients-with-schizophrenia
#9
Manuel Alegre, Patricio Molero, Miguel Valencia, Guillermo Mayner, Felipe Ortuño, Julio Artieda
The symptoms of schizophrenia might be mediated by a cortical network disconnection which may disrupt the cortical oscillatory activity. Steady-state responses are an easy and consistent way to explore cortical oscillatory activity. A chirp-modulated tone (increasing the frequency of the modulation in a linear manner) allows a fast measure of the steady-state response to different modulation rates. With this approach, we studied the auditory steady-state responses in two groups of patients with schizophrenia (drug-naive and treated with atypical antipsychotic drugs), in order to assess the differences in their responses with respect to healthy subjects, and study any potential effect of medication...
November 26, 2016: Psychiatry Research
https://www.readbyqxmd.com/read/27913254/quetiapine-treatment-reverses-depressive-like-behavior-and-reduces-dna-methyltransferase-activity-induced-by-maternal-deprivation
#10
Zuleide M Ignácio, Gislaine Z Réus, Helena M Abelaira, Amanda L Maciel, Airam B de Moura, Danyela Matos, Júlia P Demo, Júlia B I da Silva, Fernanda F Gava, Samira S Valvassori, André F Carvalho, João Quevedo
Stress in early life has been appointed as an important phenomenon in the onset of depression and poor response to treatment with classical antidepressants. Furthermore, childhood trauma triggers epigenetic changes, which are associated with the pathophysiology of major depressive disorder (MDD). Treatment with atypical antipsychotics such as quetiapine, exerts therapeutic effect for MDD patients and induces epigenetic changes. This study aimed to analyze the effect of chronic treatment with quetiapine (20mg/kg) on depressive-like behavior of rats submitted to maternal deprivation (MD), as well as the activity of histone acetylation by the enzymes histone acetyl transferases (HAT) and deacetylases (HDAC) and DNA methylation, through DNA methyltransferase enzyme (DNMT) in the prefrontal cortex (PFC), nucleus accumbens (NAc) and hippocampus...
November 29, 2016: Behavioural Brain Research
https://www.readbyqxmd.com/read/27898069/clozapine-modifies-the-differentiation-program-of-human-adipocytes-inducing-browning
#11
E Kristóf, Q-M Doan-Xuan, A K Sárvári, Á Klusóczki, P Fischer-Posovszky, M Wabitsch, Z Bacso, P Bai, Z Balajthy, L Fésüs
Administration of second-generation antipsychotic drugs (SGAs) often leads to weight gain and consequent cardio-metabolic side effects. We observed that clozapine but not six other antipsychotic drugs reprogrammed the gene expression pattern of differentiating human adipocytes ex vivo, leading to an elevated expression of the browning marker gene UCP1, more and smaller lipid droplets and more mitochondrial DNA than in the untreated white adipocytes. Laser scanning cytometry showed that up to 40% of the differentiating single primary and Simpson-Golabi-Behmel syndrome (SGBS) adipocytes had the characteristic morphological features of browning cells...
November 29, 2016: Translational Psychiatry
https://www.readbyqxmd.com/read/27892953/thalamic-mir-338-3p-mediates-auditory-thalamocortical-disruption-and-its-late-onset-in-models-of-22q11-2-microdeletion
#12
Sungkun Chun, Fei Du, Joby J Westmoreland, Seung Baek Han, Yong-Dong Wang, Donnie Eddins, Ildar T Bayazitov, Prakash Devaraju, Jing Yu, Marcia M Mellado Lagarde, Kara Anderson, Stanislav S Zakharenko
Although 22q11.2 deletion syndrome (22q11DS) is associated with early-life behavioral abnormalities, affected individuals are also at high risk for the development of schizophrenia symptoms, including psychosis, later in life. Auditory thalamocortical (TC) projections recently emerged as a neural circuit that is specifically disrupted in mouse models of 22q11DS (hereafter referred to as 22q11DS mice), in which haploinsufficiency of the microRNA (miRNA)-processing-factor-encoding gene Dgcr8 results in the elevation of the dopamine receptor Drd2 in the auditory thalamus, an abnormal sensitivity of thalamocortical projections to antipsychotics, and an abnormal acoustic-startle response...
November 28, 2016: Nature Medicine
https://www.readbyqxmd.com/read/27889384/reduced-superoxide-dismutase-1-sod1-in-cerebrospinal-fluid-of-patients-with-early-psychosis-in-association-with-clinical-features
#13
Jennifer M Coughlin, Lindsay N Hayes, Teppei Tanaka, Meifang Xiao, Robert H Yolken, Paul Worley, F Markus Leweke, Akira Sawa
Oxidative stress is implicated in the underlying pathophysiology of psychosis from studies of animal models and of tissues obtained from patients. Superoxide dismutase 1 (SOD1) is an antioxidant responsible for reducing free radicals. SOD1 levels in cerebrospinal fluid (CSF) reportedly correlate with those in brain. We hypothesized that patients in early-stages of psychotic disease may have altered SOD1 in CSF compared to healthy controls. We previously reported in a pilot study that SOD1 levels in CSF of patients with recent onset schizophrenia (SZ) were lower compared to healthy controls...
November 23, 2016: Schizophrenia Research
https://www.readbyqxmd.com/read/27887859/olanzapine-modulation-of-long-and-short-range-functional-connectivity-in-the-resting-brain-in-a-sample-of-patients-with-schizophrenia
#14
Wenbin Guo, Feng Liu, Jindong Chen, Renrong Wu, Lehua Li, Zhikun Zhang, Jingping Zhao
Treatment effects of antipsychotic drugs on cerebral function are seldom examined. Exploring functional connectivity (FC) in drug-free schizophrenia patients before and after antipsychotic treatment can improve the understanding of antipsychotic drug mechanisms. A total of 17 drug-free patients with recurrent schizophrenia and 24 healthy controls underwent resting-state functional magnetic resonance imaging scans. Long- and short-range FC strengths (FCS) were calculated for each participant. Compared with the controls, the patients at baseline exhibited increased long-range positive FCS (lpFCS) in the bilateral inferior parietal lobule (IPL) and decreased lpFCS in the brain regions of the default-mode network (DMN) regions and sensorimotor circuits of the brain...
November 22, 2016: European Neuropsychopharmacology: the Journal of the European College of Neuropsychopharmacology
https://www.readbyqxmd.com/read/27884042/valproate-for-schizophrenia
#15
REVIEW
Yijun Wang, Jun Xia, Bartosz Helfer, Chunbo Li, Stefan Leucht
BACKGROUND: Many people with schizophrenia do not achieve a satisfactory treatment response with ordinary antipsychotic drug treatment. In these cases, various add-on medications are used, and valproate is one of these. OBJECTIVES: To examine whether:1. valproate alone is an effective treatment for schizophrenia and schizoaffective psychoses; and2. valproate augmentation of antipsychotic medication is an effective treatment for the same illnesses. SEARCH METHODS: We searched the Cochrane Schizophrenia Group's Study-Based Register of Trials (July 2002; February 2007; July 2012; March 04, 2016)...
November 24, 2016: Cochrane Database of Systematic Reviews
https://www.readbyqxmd.com/read/27879426/the-successful-concurrent-use-of-two-long-acting-depot-antipsychotics-in-a-patient-with-treatment-resistant-schizophrenia-and-history-of-serious-violence-a-case-report
#16
Anna Lenardon, Mona Ahmed, Katie-Lynn Harfield, Mrigendra Das
OBJECTIVE: This case report describes a forensic psychiatric patient presenting with treatment-resistant schizophrenia and serious interpersonal violence complicated by poor adherence to oral medication who was treated successfully with two concurrent long-acting depot antipsychotics. METHOD: Treatment response was measured for a 6-month period at 6-weekly intervals, post-initiation using the Positive and Negative Symptoms of Schizophrenia with Excited Component score (PANSS-EC), Brief Psychiatric Rating Scale (BPRS) and Clinical Global Impression Scale (CGI)...
November 22, 2016: Australasian Psychiatry: Bulletin of Royal Australian and New Zealand College of Psychiatrists
https://www.readbyqxmd.com/read/27873285/prescription-drug-use-and-polypharmacy-among-medicaid-enrolled-adults-with-autism-a-retrospective-cross-sectional-analysis
#17
Rini Vohra, Suresh Madhavan, Usha Sambamoorthi, Claire StPeter, Susannah Poe, Nilanjana Dwibedi, Mayank Ajmera
BACKGROUND: A lack of gold standard treatment for autism spectrum disorders (ASD), no clear ASD management guidelines, and lack of evidence-based pharmacological interventions other than aripiprazole and risperidone elevate the risk of off-label prescribing and adverse effects among individuals with ASD, more so among adults. OBJECTIVE: The aim of this study was to identify and compare the types of prescription drug use, rates of polypharmacy, and characteristics associated with polypharmacy among adults with and without ASD in a retrospective cross-sectional analysis of a three-state Medicaid Analytic eXtract database (2000-2008)...
December 2016: Drugs—Real World Outcomes
https://www.readbyqxmd.com/read/27872683/safe-and-effective-sofosbuvir-based-therapy-in-patients-with-mental-health-disease-on-hepatitis-c-virus-treatment
#18
Lydia Shuk Yee Tang, Jack Masur, Zayani Sims, Amy Nelson, Anu Osinusi, Anita Kohli, Sarah Kattakuzhy, Michael Polis, Shyam Kottilil
AIM: To study impact of baseline mental health disease on hepatitis C virus (HCV) treatment; and Beck's Depression Inventory (BDI) changes with sofosbuvir- and interferon-based therapy. METHODS: This is a retrospective cohort study of participants from 5 studies enrolled from single center trials conducted at the Clinical Research Center of the National Institutes of Health, Bethesda, MD, United States. All participants were adults with chronic HCV genotype 1 infection and naïve to HCV therapy...
November 8, 2016: World Journal of Hepatology
https://www.readbyqxmd.com/read/27866695/does-formulation-matter-a-systematic-review-and-meta-analysis-of-oral-versus-long-acting-antipsychotic-studies
#19
REVIEW
Giovanni Ostuzzi, Irene Bighelli, Ryuhei So, Toshi A Furukawa, Corrado Barbui
Recently, many authors highlighted the potential advantages of a broader prescription of long-acting injectable antipsychotics (LAIs) based on various assumptions, including favorable pharmacokinetic features. In this systematic review, data from randomized controlled trials comparing LAIs versus the oral formulation of the same antipsychotic were meta-analyzed in order to ascertain whether the route of administration may be associated with a different efficacy and tolerability profile. Of 21 included studies, 18 contributed to the meta-analysis, providing data for risperidone, olanzapine, aripiprazole, zuclopenthixol, fluphenazine and haloperidol...
November 17, 2016: Schizophrenia Research
https://www.readbyqxmd.com/read/27866485/determinants-of-the-nurses-and-nursing-assistants-request-for-antipsychotics-for-people-with-dementia
#20
Sarah I M Janus, Jeannette G van Manen, Maarten J IJzerman, Marloes Bisseling, Constance H C Drossaert, Sytse U Zuidema
BACKGROUND: Although physicians are responsible for writing the antipsychotic prescriptions for patients with dementia, the initiative is often taken by nurses or nursing assistants. To reduce antipsychotics uses, one needs to understand the reasons for nurses and nursing assistants to request them. This study gives an overview of the influencing factors for this request based on the Theory of Planned Behavior in which attitude, beliefs, and behavioral control is thought to influence the intention to request, which in turn affects the behavior to request for a prescription...
November 21, 2016: International Psychogeriatrics
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