Background: Clinical practice guidelines support efforts to improve functioning in patients with schizophrenia. Discrepancies in the perception of cognitive status between clinicians, patients with schizophrenia, and their caregivers have been associated with impaired functional abilities in patients; medication side effects might worsen both cognition and daily functioning. We assessed daily/social functioning and cognition in stable patients with schizophrenia who switched to the long-acting injectable (LAI) antipsychotic aripiprazole lauroxil (AL).
View Article and Find Full Text PDFBMC Psychiatry
June 2023
Rater training and the maintenance of the consistency of ratings are critical to ensuring reliability of study measures and sensitivity to changes in the course of a clinical trial. The Positive and Negative Syndrome Scale (PANSS) has been widely used in clinical trials of schizophrenia and other disorders and is considered the "gold standard" for assessment of antipsychotic treatment efficacy. The various features associated with training and calibration of this scale are complex, reflecting the intricacy and heterogeneity of the disorders that the PANSS is used to evaluate.
View Article and Find Full Text PDFThere is currently a "measurement gap" between research and clinical care in schizophrenia. The main reason behind this gap is that the most widely used rating scale in schizophrenia research, the 30-item Positive and Negative Syndrome Scale (PANSS), takes so long to administer that it is rarely used in clinical practice. This compromises the translation of research findings into clinical care and vice versa.
View Article and Find Full Text PDFThe Symptoms of Trauma Scale (SOTS) is a 12-item, interview-based, clinician-rated measure that assesses the severity of a range of trauma-related symptoms. This pilot study evaluated its use and psychometric properties in an outpatient setting that provides treatment to survivors of chronic interpersonal trauma. Thirty participants completed self-report measures of posttraumatic stress symptoms, depression, dissociation, self-esteem, and affect dysregulation; the participants also participated separately in a semistructured interview based on the SOTS conducted by 2 trained interviewers.
View Article and Find Full Text PDFThis article reviews the antidepressant actions of ketamine, an N-methyl-D-aspartame glutamate receptor (NMDAR) antagonist, and offers a potential neural mechanism for intranasal ketamine's ultra-rapid actions based on the key role of NMDAR in the nonhuman primate prefrontal cortex (PFC). Although intravenous ketamine infusions can lift mood within hours, the current review describes how intranasal ketamine administration can have ultra-rapid antidepressant effects, beginning within minutes (5-40 minutes) and lasting hours, but with repeated treatments needed for sustained antidepressant actions. Research in rodents suggests that increased synaptogenesis in PFC may contribute to the prolonged benefit of ketamine administration, beginning hours after administration.
View Article and Find Full Text PDFA meta-analytic study of reports of brain tumors and psychiatric symptoms for the past 50 years was conducted to examine potential associations between tumor location and psychiatric symptoms. Results demonstrated that there is a statistically significant association between anorexia symptoms and hypothalamic tumors. For the rest of the brain regions a statistically significant association could not be definitively determined.
View Article and Find Full Text PDFSchizophrenia has been linked to advanced paternal age, but the explanation is unknown. We questioned whether the incidence of schizophrenia would be related to male reproductive capacity, as reflected in the time taken to conceive. We measured the incidence of schizophrenia in relation to time to conception in a sub-group of 12,269 in the Jerusalem cohort whose mothers, interviewed post-partum, reported that the pregnancy had been intended.
View Article and Find Full Text PDFEnviron Health Perspect
November 2008
Background: A previously conducted study of prenatal lead exposure and schizophrenia using delta-aminolevulinic acid, a biologic marker of Pb exposure, in archived maternal serum samples collected from subjects enrolled in the Childhood Health and Development Study (1959-1966) based in Oakland, California, suggested a possible association between prenatal Pb exposure and the development of schizophrenia in later life.
Objectives: In the present study we extend these findings using samples collected from the New England cohort of the National Collaborative Perinatal Project (1959-1966). Using similar methods, in this study we found results that suggest a comparable association in this cohort.
Background: Published methods for assessing remission in schizophrenia are variable and none have been definitively validated or standardized. Andreasen et al (2005) suggest systematic operational criteria using eight PANSS items for which patients must score < or = 3 (mild) for at least six months.
Methods: Using data from a one year, multi-site clinical trial (n = 675) remission criteria were compared to total PANSS scores and other endpoints and demonstrate excellent agreement with overall clinical status.
Problems associated with the clinician-administered rating scales have led to new approaches to improve rater training. These include interactive, on-line didactic tutorials and live, remote evaluation of raters' clinical skills through the use of videoconferencing. The purpose of this study was to evaluate this approach in training novice raters on the administration of the Positive and Negative Symptom Scale (PANSS).
View Article and Find Full Text PDFSchizophrenia and related disorders are adult-onset illnesses with no definitively established risk factors. Several studies report that exposures to infection and nutritional deprivation during early development may elevate the risk of later developing schizophrenia, specifically during the prenatal period. Preliminary evidence implicates lead exposure as well, suggesting that chemical exposures during early development may constitute a new class of risk factors for schizophrenia that has not been adequately investigated.
View Article and Find Full Text PDFEnviron Health Perspect
April 2004
Schizophrenia is a severe mental disorder of unknown etiology. Recent reports suggest that a number of environmental factors during prenatal development may be associated with schizophrenia. We tested the hypothesis that environmental lead exposure may be associated with schizophrenia using archived serum samples from a cohort of live births enrolled between 1959 and 1966 in Oakland, California.
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