View clinical trials related to Schizophrenia.
Filter by:The investigators would like to know the association of gene polymorphisms and metabolic adversities in clozapine-treated patients with schizophrenia in Taiwan.
The pilot studies have showed that theta burst stimulation (TBS) can have the more rapid and durable effects to the apply traditional rTMS protocols. The aim of this study is to investigate the effect of repetitive TMS and theta burst in reduction of negative symptoms and remission of cognitive functioning in patients with schizophrenia. In a randomized, double blind clinical trials, 30 patients with schizophrenia in Razi psychiatric hospital will be assigned to receive repetitive TMS; theta burst, or sham TMS, daily; for 20 sessions. The negative symptoms and cognitive functioning will be assessed before the treatment (pre test) during the treatment (session 10), and after the treatment (post test).QEEG and LORETA apply before and after rTMS in all subjects.
To investigate the brain abnormalities and the association with gene in schizophrenia patients and their relatives.
The primary objective of this study is to assess the effects of 'Seroquel-XR' on the verbal learning ability in people with at-risk mental state (ARMS) over a 12 week period. The verbal learning ability will be indexed by delayed free recall score of CVLT(California Verbal learning Test), a standard neuropsychological verbal memory tests. The secondary objective is to assess the effects of 'Seroquel-XR' on other cognitive function and psychiatric symptoms including psychotic, anhedonic symptoms, and impulsivity. The cognitive function abilities will be measured by standard neuropsychological tests as follows; - Working memory: verbal & spatial 2-back test - Attention: Digit Span, 3-7 CPT(Continuous Performance Test) - Executive function: WCST (Wisconsin Card Sorting Test) - Visuo-spatial ability: Rey Complex Figure Task copy - Visuomotor speed and planning: Trail making test A & B - Verbal fluency: Controlled Oral Word Association Test(COWAT) The scales of psychiatric symptoms which will be used are as follows; - Psychotic symptoms: Scales of Prodromal scales (SOPS), Positive and negative syndrome scale (PANSS) - Anhedonia: Social Anhedonia Scale (SAS), Physical Anhedonia Scale (PAS) - Social cognition: Ambiguous Intention Hostility Questionnaire (AIHQ) - Impulsivity: Barrett Impulsivity Scale (BIS)
This proposal responds to Request for Applications RFA-MH-08-131, which seeks applications that propose to enrich pre-existing resources for schizophrenia in the National Institute of Mental Health (NIMH) Human Genetics Initiative and to apply genomic methods to further the investigators understanding of the molecular etiology of the disorder. The overarching aims of this proposal are to quickly and cost-effectively ascertain a large sample of trio families affected by schizophrenia, and to discover causal variants for the disorder in the first family-based genome-wide association study (GWAS) of the disorder. In Taiwan, there is no such kind of policy to support this kind of GWAS study as it is a very expensive study, including collecting large family samples and genome-wide single-nucleotide polymorphism (SNP) scanning. The investigators, thus, collaborate with Professor Ming T, Tsuang and his entended subcontracted researchers to apply for this project. The investigators, the research team in Taiwan, will collect 3800 trio families (11400 subjects) of schizophrenia. Through additional ascertainment within this framework, the investigators will collect an aggregate sample with adequate power for detecting in a GWAS those variants that make even small contributions to the risk for the disorder. The investigators will meet the overarching goals of this project by accomplishing several Specific Aims, as follows: 1) Rapidly ascertain schizophrenia trio families from Taiwanese clinical ascertainment sites; 2) Supplement NIMH Genetics Initiative collections by sending all clinical data and biomaterials to the appropriate repositories; 3) Assess the association of schizophrenia with a genome-wide panel of single-nucleotide polymorphisms (SNPs) and their constituent haplotypes; 4) Analyze quantitative schizophrenia phenotypes such as age at onset ; 5) Perform a genome-wide survey for copy-number variations related to schizophrenia; 6) Test for gene-gene interactions (epistasis); and 7) Test for gene-environment interactions, such as the well-established effect of season of birth.
Background: Among individuals with schizophrenia, there is an increased prevalence of obesity, dyslipidemia ,diabetes mellitus and related conditions such as cardiovascular disease. People with severe mental illnesses, such as schizophrenia, depression or bipolar disorder, have worse physical health and reduced life expectancy compared to the general population. Number of epidemiological studies of patients with schizophrenia have documented a higher incidence of cardiovascular disease than in the general population, and patients with schizophrenia may be at an elevated risk for cardiovascular disease even in the absence of antipsychotic treatment. Affinity for the H1 receptor is most closely linked to increased weight gain, although affinity for D2, 5-HT1A, 5-HT2C and a2-receptors may also be involved. Drug affinity for the H1, M3 and 5-HT2C receptors is correlated with an increased risk of diabetes. High-density lipoprotein cholesterol (HDL-C) concentration in the blood is independently and inversely associated with an increased risk of cardiovascular disease(CVD). However many patients with 'normal' or even 'elevated' plasma HDL experience clinical events. HDL may not always be atheroprotective and in some conditions, it paradoxically enhances the process of atherosclerosis. In addition to its role in reverse cholesterol transport, HDL shows many other protective properties towards atherosclerosis. HDL inhibits the chemotaxis of monocytes , prevents endothelial dysfunction and apoptosis, prohibit slow-density lipoprotein (LDL ) oxidation, and stimulates the proliferation of endothelial cells and smooth muscle cells. These anti-inflammatory, antioxidative, antiaggregatory, anti-coagulant, and pro-fibrinolytic activities are exerted by different components of HDL Aim of the study: To investigate the functional properties of HDL in psychiatric patients before and during antipsychotic therapy. Patients and methods: The blood will be drawn at baseline before the initiation of antipsychotic drugs and 2 months under the antipsychotic treatment. Study procedures: Full lipid profile including triglycerides, LDL-C, Total cholesterol, HDL-cholesterol, apo AI, apoAII and apoB100. Serum Paraoxanase Activity LDL oxidation and resistance to oxidation (measured by conjugated diens formation during incubation in the presence of copper). HDL composition: total and unesterified cholesterol, triglycerides and phospholipids, TBARS content before and after exposure to AAPH as a major indicator of oxidative stress, PON activity using phenylacetate as a substrate, apoA1and PAF. Serum parameters e.g. Diacyl glycerol acyltransferase activity, free ApoA1 and LCAT activity. 3 [H]-Cholesterol efflux will be measured by incubating J744 macrophages with serum. Radioactivity will measured by β counter in the cell lysate and the medium. Statistical methods: One-way AVOVA and Student's t-test for paired samples will be used for comparison of multiple groups and paired samples, respectively. p<0.05 will be considered significant.
Background: Patients with severe mental illness (SMI) have a higher prevalence of cardiovascular risk factors (CVRF) than the general population and a control of these risk factors poorer. Serious mental illness often causes health teams to focus interventions in mental illness and put aside the CVRF. Objectives: This project aims to assess the CVRF, stratify the cardiovascular risk, adequate drug treatment to reduce this risk and evaluate the effectiveness of an intervention by professional community nurses in patients with SMI. Materials and Methods: Prospective study of a cohort of patients over 18 years with a diagnosis of SMI with two cross sections to evaluate the cardiovascular risk and adequacy of drug treatment. The investigators calculate the risk to the cardiovascular risk tables with the SCORE (Systematic Coronary Risk Evaluation) for countries of low cardiovascular risk and the of Framingham REGICOR (Heart registry of Girona, Spain). The adequacy of pharmacotherapy will be assessed contrasting it with the recommendations of the Program of Preventive Activities and Health Promotion of Family medical association. The intervention will be conducted by professional nurses and consist of an initial psycho-educational intervention, and two more reinforcement throughout twelve months, of duration less than 30 minutes that will be addressed in an integrated manner the clinical situation with regard to cardiovascular risk. If necessary, pharmacological treatment will be prescribed. Twelve months after the first intervention, a second evaluation on cardiovascular risk and the effectiveness of the intervention will be performed.
The investigators hypothesize that cognitive remediation will be superior to the active control group on the change from baseline to study end point of cognitive remediation phase on both co-primary outcome measures (standardized composite MATRICS score and Cognitive Assessment Interview).
Double - Blind, Randomized, single centered study. The purpose of this study is to assess the feasibility of minocycline vs. placebo, added to atypical antipsychotic medications, for positive symptoms in adults suffering from schizophrenia.
In this study we want to find out whether MS14 - a herbal drug- can help Schizophrenia patients or not.