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Schizophrenia and negative symptoms

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https://www.readbyqxmd.com/read/28529369/concurrent-validity-of-indian-disability-evaluation-and-assessment-scale-with-sociooccupational-functioning-scale-in-patients-with-schizophrenia
#1
Swapnajeet Sahoo, Sandeep Grover, Devakshi Dua, Subho Chakrabarti, Ajit Avasthi
BACKGROUND: The Government of India (GOI) has recommended the use of Indian Disability Evaluation and Assessment Scale (IDEAS) for the assessment and certification of disability in patients with mental illness. Although data are available in terms of internal consistency and construct validity of IDEAS, concurrent validity of IDEAS has rarely been evaluated. AIM: The aim was to study the concurrent validity of IDEAS with Global Assessment of Functioning (GAF) and Social and Occupational Functioning Scale (SOFS) in patients with schizophrenia...
January 2017: Indian Journal of Psychiatry
https://www.readbyqxmd.com/read/28529366/wisconsin-card-sorting-test-performance-impairment-in-schizophrenia-an-indian-study-report
#2
Shailja Singh, Tapas Kumar Aich, Raju Bhattarai
AIM: The present study attempted to find out the relationship between positive and negative clinical symptoms and Wisconsin Card Sorting Test (WCST) performance in a group of schizophrenia patients. METHODOLOGY: Fifty schizophrenia patients were assessed using the Positive and Negative Syndrome Scale (PANSS) by a trained psychiatrist (TKA) and two groups, each of 25 positive symptom and 25 negative symptom schizophrenia patients were formed. On these fifty patients with schizophrenia and 15 normal control groups, WCST measures were applied by a clinical psychologist (SS) who remained blind to the PANSS score...
January 2017: Indian Journal of Psychiatry
https://www.readbyqxmd.com/read/28529220/clinical-correlates-of-treatment-response-among-patients-with-schizophrenia-in-a-tertiary-nigerian-hospital
#3
Mark Sunday Ezeme, Richard Uwakwe, Appolos Chidi Ndukuba, Monday N Igwe, Paul Chigozie Odinka, Kennedy Amadi, Nichodemus O Obayi
A significant proportion of patients treated for schizophrenia respond poorly to medication. Few studies have systematically examined the impact of clinical characteristics of patients to antipsychotic response in our environment. The study aimed to identify clinical variables associated with response in patients with schizophrenia. A total of 172 participants diagnosed with schizophrenia, placed on antipsychotics, who presented for the first time to the hospital or have stopped medication in the preceding six months, whose responses were assessed after four to six weeks were studied...
2017: Journal of Health Care for the Poor and Underserved
https://www.readbyqxmd.com/read/28528597/adjunctive-memantine-for-schizophrenia-a-meta-analysis-of-randomized-double-blind-placebo-controlled-trials
#4
W Zheng, X-H Li, X-H Yang, D-B Cai, G S Ungvari, C H Ng, S-B Wang, Y-Y Wang, Y-P Ning, Y-T Xiang
BACKGROUND: Dysfunction of N-methyl-D-aspartate receptor (NMDAR) is involved in the pathophysiology of schizophrenia. A meta-analysis of randomized controlled trials (RCTs) was conducted to examine the efficacy and safety of memantine, a non-competitive NMDAR antagonist, in the treatment of schizophrenia. METHODS: Standardized/weighted mean differences (SMDs/WMDs), risk ratio (RR), and their 95% confidence intervals (CIs) were calculated and analyzed. RESULTS: Included in the meta-analysis were eight RCTs (n = 452) of 11...
May 22, 2017: Psychological Medicine
https://www.readbyqxmd.com/read/28522434/one-year-symptom-trajectories-in-patients-with-stable-schizophrenia-maintained-on-antipsychotics-versus-placebo-meta-analysis
#5
REVIEW
Hiroyoshi Takeuchi, Navot Kantor, Marcos Sanches, Gagan Fervaha, Ofer Agid, Gary Remington
BackgroundAs definitions of relapse differ substantially between studies, in investigations involving data aggregation, total scores on clinical rating scales provide a more generalisable outcome.AimsTo compare total symptom trajectories for antipsychotic versus placebo treatment over a 1-year period of maintenance treatment in schizophrenia.MethodRandomised controlled trials with antipsychotic and placebo treatment arms in patients with stable schizophrenia that reported Positive and Negative Syndrome Scale and Brief Psychiatric Rating Scale total scores at more than one time point were included...
May 18, 2017: British Journal of Psychiatry: the Journal of Mental Science
https://www.readbyqxmd.com/read/28522405/challenges-and-opportunities-for-the-development-of-new-antipsychotic-drugs
#6
REVIEW
Carlos Forray, Raimund Buller
In spite of the significant impact that the serendipitous discovery of drugs with antipsychotic properties had on the care of patients with psychotic disorders, there are significant challenges when aiming at therapeutic goals such as remission, recovery, improved health-related quality of life and functioning. The efficacy and effectiveness of existing antipsychotic drugs fail to address the full spectrum of symptoms and functional deficits that currently prevent patients with psychotic disorders from achieving fulfilling lives...
May 15, 2017: Biochemical Pharmacology
https://www.readbyqxmd.com/read/28521049/22q11-2-deletion-syndrome-is-associated-with-impaired-auditory-steady-state-gamma-response
#7
Kit Melissa Larsen, Giovanni Pellegrino, Michelle Rosgaard Birknow, Trine Nørgaard Kjær, William Frans Christiaan Baaré, Michael Didriksen, Line Olsen, Thomas Werge, Morten Mørup, Hartwig Roman Siebner
Background: The 22q11.2 deletion syndrome confers a markedly increased risk for schizophrenia. 22q11.2 deletion carriers without manifest psychotic disorder offer the possibility to identify functional abnormalities that precede clinical onset. Since schizophrenia is associated with a reduced cortical gamma response to auditory stimulation at 40 Hz, we hypothesized that the 40 Hz auditory steady-state response (ASSR) may be attenuated in nonpsychotic individuals with a 22q11.2 deletion...
May 17, 2017: Schizophrenia Bulletin
https://www.readbyqxmd.com/read/28520743/whole-brain-volume-changes-and-its-correlation-with-clinical-symptom-severity-in-patients-with-schizophrenia-a-dartel-based-vbm-study
#8
Gwang-Won Kim, Yun-Hyeon Kim, Gwang-Woo Jeong
The purpose of this study was to evaluate gray matter (GM) and white matter (WM) volume alterations in whole-brain structures in patients with schizophrenia and healthy controls using voxel-based morphometry (VBM), and further to assess the correlation between GM and WM volume variations and symptom severity in schizophrenia. A total of 22 patients with schizophrenia and 22 age-matched healthy controls participated. Magnetic resonance image data were processed using SPM8 software with diffeomorphic anatomical registration via an exponentiated Lie algebra (DARTEL) algorithm...
2017: PloS One
https://www.readbyqxmd.com/read/28514778/validation-of-the-five-factor-model-of-the-arabic-version-of-the-positive-and-negative-syndrome-scale-in-schizophrenia
#9
Arij Yehya, Suhaila Ghuloum, Ziyad Mahfoud, Mark Opler, Anzalee Khan, Samer Hammoudeh, Yahya Hani, Hassen Al-Amin
BACKGROUND: The Positive and Negative Syndrome Scale (PANSS) is a widely used assessment for patients with schizophrenia across clinical and research settings. This scale allows the classification of the psychotic symptoms to better understand the psychopathology in patients with schizophrenia. There are no available data on the different components of psychopathology in Arab patients with schizophrenia. OBJECTIVES: This study examined the factor structure of the validated Arabic version of the PANSS in a sample of Arab patients with schizophrenia...
May 18, 2017: Psychopathology
https://www.readbyqxmd.com/read/28514486/efficacy-of-42-pharmacologic-cotreatment-strategies-added-to-antipsychotic-monotherapy-in-schizophrenia-systematic-overview-and-quality-appraisal-of-the-meta-analytic-evidence
#10
Christoph U Correll, Jose M Rubio, Gabriella Inczedy-Farkas, Michael L Birnbaum, John M Kane, Stefan Leucht
Importance: Limited treatment responses in schizophrenia prompted the testing of combining an antipsychotic drug treatment with a second psychotropic medication. A comprehensive evaluation of the efficacy of multiple medication combinations is missing. Objective: To summarize and compare the meta-analytically determined efficacy of pharmacologic combination strategies of antipsychotic drugs in adults with schizophrenia. Data Sources: Systematic search of PubMed and PsycInfo until May 13, 2016...
May 17, 2017: JAMA Psychiatry
https://www.readbyqxmd.com/read/28511548/quality-adjusted-life-year-difference-in-patients-with-predominant-negative-symptoms-of-schizophrenia-treated-with-cariprazine-and-risperidone
#11
Bertalan Németh, Anett Molnár, Ron Akehurst, Margit Horváth, Kristóf Kóczián, György Németh, Árpád Götze, Zoltán Vokó
AIM: Our study aimed at estimating differences in quality-adjusted life year (QALY) gain for patients with predominant negative symptoms of schizophrenia treated with cariprazine compared with risperidone. MATERIALS & METHODS: A Markov model was built, based on the Mohr-Lenert approach and data derived from clinical trials, to estimate potential QALY gains of patients. RESULTS: Patients had higher probability of reaching better health states treated with cariprazine compared with risperidone...
May 17, 2017: Journal of Comparative Effectiveness Research
https://www.readbyqxmd.com/read/28508107/memantine-add-on-to-antipsychotic-treatment-for-residual-negative-and-cognitive-symptoms-of-schizophrenia-a-meta-analysis
#12
Taro Kishi, Yuki Matsuda, Nakao Iwata
RATIONALE: We examined whether memantine add-on to antipsychotic treatment is beneficial in schizophrenia treatment. OBJECTIVE: This systematic review and meta-analysis aimed to achieve stronger evidence on the efficacy and safety of memantine add-on for treating schizophrenia. METHODS: We analyzed double-blind, randomized, placebo-controlled trials of memantine add-on treatment in schizophrenia patients receiving antipsychotics. The primary outcomes were amelioration of negative symptoms and all-cause discontinuation...
May 15, 2017: Psychopharmacology
https://www.readbyqxmd.com/read/28506922/oxytocin-effects-in-schizophrenia-reconciling-mixed-findings-and-moving-forward
#13
REVIEW
Ellen R Bradley, Joshua D Woolley
Schizophrenia is a severe mental illness that causes major functional impairment. Current pharmacologic treatments are inadequate, particularly for addressing negative and cognitive symptoms of the disorder. Oxytocin, a neuropeptide known to moderate social behaviors, has been investigated as a potential therapeutic for schizophrenia in recent years. Results have been decidedly mixed, leading to controversy regarding oxytocin's utility. In this review, we outline several considerations for interpreting the extant literature and propose a focused agenda for future work that builds on the most compelling findings regarding oxytocin effects in schizophrenia to date...
May 12, 2017: Neuroscience and Biobehavioral Reviews
https://www.readbyqxmd.com/read/28506703/abnormal-asymmetry-of-white-matter-tracts-between-ventral-posterior-cingulate-cortex-and-middle-temporal-gyrus-in-recent-onset-schizophrenia
#14
Sung Woo Joo, Myong-Wuk Chon, Yogesh Rathi, Martha E Shenton, Marek Kubicki, Jungsun Lee
INTRODUCTION: Previous studies have reported abnormalities in the ventral posterior cingulate cortex (vPCC) and middle temporal gyrus (MTG) in schizophrenia patients. However, it remains unclear whether the white matter tracts connecting these structures are impaired in schizophrenia. Our study investigated the integrity of these white matter tracts (vPCC-MTG tract) and their asymmetry (left versus right side) in patients with recent onset schizophrenia. METHOD: Forty-seven patients and 24 age-and sex-matched healthy controls were enrolled in this study...
May 12, 2017: Schizophrenia Research
https://www.readbyqxmd.com/read/28505669/add-on-antidepressants-in-the-naturalistic-treatment-of-schizophrenia-spectrum-disorder-when-who-and-how
#15
Rebecca Schennach, Michael Obermeier, Florian Seemüller, Markus Jäger, Max Schmauss, Gerd Laux, Herbert Pfeiffer, Dieter Naber, Lutz G Schmidt, Wolfgang Gaebel, Joachim Klosterkötter, Isabella Heuser, Wolfgang Maier, Matthias R Lemke, Eckart Rüther, Stefan Klingberg, Markus Gastpar, Ilja Spellmann, Richard Musil, Hans-Jürgen Möller, Michael Riedel
The aim of this study was to evaluate antidepressant add-on treatment within the acute treatment of schizophrenia spectrum disorder patients. Antidepressant add-on was evaluated in 365 patients within a naturalistic multicenter study. Patients with/without antidepressant add-on were compared regarding clinical and treatment-related variables, response and remission, and remission of depressive and negative symptoms. The efficacy of antidepressant add-on treatment was furthermore analyzed applying marginal structure models...
May 15, 2017: Pharmacopsychiatry
https://www.readbyqxmd.com/read/28499897/reduced-language-lateralization-in-first-episode-schizophrenia-a-near-infrared-spectroscopy-study
#16
Po-Han Chou, Wei-Hao Lin, Wang-Rung Li, Chih-Mao Huang, Chia-Wei Sun
BACKGROUND: Diminished functional lateralization in language-related areas is found in chronic schizophrenia (SZ). However, whether reduced lateralization exists at the early stage of SZ remains unclear. The present study aimed to investigate language lateralization in first episode schizophrenia (FES) using near infrared spectroscopy (NIRS) during a letter version of verbal fluency test (VFT). METHODS: A total of 28 FES patients and 33 healthy controls (HCs) underwent NIRS while performing a VFT...
May 9, 2017: Progress in Neuro-psychopharmacology & Biological Psychiatry
https://www.readbyqxmd.com/read/28493605/adverse-effects-of-obesity-on-cognitive-functions-in-individuals-at-ultra-high-risk-for-bipolar-disorder-results-from-the-global-mood-and-brain-science-initiative
#17
Roger S McIntyre, Rodrigo B Mansur, Yena Lee, Letícia Japiassú, Kun Chen, Rui Lu, Weicong Lu, Xiaodong Chen, Ting Li, Guiyun Xu, Kangguang Lin
BACKGROUND: The burden of illness associated with bipolar disorder (BD) warrants early pre-emption/prevention. Prediction models limited to psychiatric phenomenology have insufficient predictive power. Herein, we aimed to evaluate whether the presence of overweight/obesity is associated with greater cognitive decline in individuals at high risk (HR) or ultra high risk (UHR) for BD. METHODS: We conducted a retrospective analysis to investigate the moderational role of body mass index (BMI) on measures of cognitive function...
March 2017: Bipolar Disorders
https://www.readbyqxmd.com/read/28484349/one-year-follow-up-of-patients-with-a-diagnosis-of-first-episode-psychosis
#18
Atena Enderami, Fatemeh Sheikh Monesi, Mehran Zarghami
INTRODUCTION: Early diagnosis of symptoms related to psychotic disorders causes hyper responsiveness, recurrence reduction and quality of life improvement. The aim of this study was one-year follow-up of the clinical course and outcomes of hospitalized patients with first episode psychotic disorders and detection of factors affecting consequences. METHODS: This longitudinal descriptive study was conducted during 2012 to 2013 on hospitalized patients at Zare Hospital in Sari, Iran, with any psychotic symptoms and with diagnosis of first episode psychosis...
March 2017: Materia Socio-medica
https://www.readbyqxmd.com/read/28483174/-impact-of-a-multimodal-intervention-on-the-psychological-profile-of-schizophrenic-and-bipolar-i-patients-a-study-of-prisma-program
#19
Ana María Díaz-Zuluaga, Cristian Vargas, Kelly Duica, Shanel Richard, Juan David Palacio, Yuli Agudelo Berruecos, Sigifredo Ospina, Carlos López-Jaramillo
BACKGROUND: Bipolar Disorder (BD) and schizophrenia are included in the group of severe mental illness and are main causes of disability and morbidity in the local population due to the bio-psycho-social implications in patients. In the last 20 years or so, adjunctive psychological interventions been studied with the purpose of decreasing recurrences, stabilising the course of the disease, and improving the functionality in these patients. OBJECTIVE: To analyse the psychological effect of a multimodal intervention (MI) vs a traditional intervention (TI) program in BD I and schizophrenic patients...
April 2017: Revista Colombiana de Psiquiatría
https://www.readbyqxmd.com/read/28483096/electroencephalogram-alpha-to-theta-ratio-over-left-fronto-temporal-region-correlates-with-negative-symptoms-in-schizophrenia
#20
Sayantanava Mitra, Shamsul Haque Nizamie, Nishant Goyal, Sai Krishna Tikka
BACKGROUND: Negative symptoms impair outcomes on occupational functioning, social interaction and interpersonal relationships in patients with schizophrenia. Past researchers have reported reduced alpha and increased theta and delta spectral powers on quantitative EEG recordings in those with prominent negative symptoms. AIM: Present analysis aimed at exploring the relationships between lower-frequency EEG powers and negative symptoms, in schizophrenia, over a period of naturalistic antipsychotic treatment...
April 2017: Asian Journal of Psychiatry
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