Search results for "CANNABIS"
showing 10 items of 174 documents
THE RELATION OF THE PSYCHOSIS CONTINUUM WITH SCHIZOPHRENIA POLYGENIC RISK SCORE AND CANNABIS USE
2020
Estudio epidemiológico de probabilidades y predictores entre distintos estadios de uso de sustancias y desarrollo de comorbilidad psiquiátrica a nive…
2019
Introducción: Existen diferentes grados de severidad de uso de sustancias incluyendo el consumo, los trastornos por uso de sustancias de distinta severidad, la remisión y la recaída. Adicionalmente, el uso de sustancias puede relacionarse con el desarrollo de comorbilidad psiquiátrica a largo plazo. La mayoría de estudios epidemiológicos que observan las tasas de transición entre distintos niveles de severidad se han realizado en su mayoría utilizando bases de datos clínicos, que no son representativas de la población en general. Eso limita la utilidad de esos estudios para entender estos fenómenos a nivel poblacional y elaborar políticas de salud pública dirigidas a las comunidades. Objeti…
La cultura del cannabis treinta años después... unas reflexiones personales
2005
En la primera parte del articulo se expone una síntesis de lo que fue la "cultura del hachís", que aglutinó a los jipis catalanes a finales de los sesenta, y que el autor estudió a principios de los años ochenta. En el punto siguiente, se sintetizan los principales elementos de la actual "cultura del cannabis" en España, haciendo hincapié en el movimiento social que la sustenta.Y en la discusión posterior se constatan las discontinuidades y continuidades entre ambos momentos históricos. Entre estas últimas, se subraya el ambivalente lugar del cannabis, entre la normalización social y su uso como "pretexto represivo", tanto en el campo de la política como en el de la salud.
Cannabis Use and the Risk for Psychosis and Affective Disorders.
2019
Objective: This review discusses the relationship between cannabis use and psychotic, bipolar, depressive, and anxiety disorders, as well as suicide. It summarizes epidemiological evidence from cross-sectional and long-term prospective studies and considers possible etiological mechanisms. Methods: Systematic reviews and methodologically robust studies in the field (from inception to February 2019) were identified using a comprehensive search of Medline, PsychINFO, and Embase and summarized using a narrative synthesis. Results: Consistent evidence, both from observational and experimental studies, has confirmed the important role of cannabis use in the initiation and persistence of psychoti…
Experiencias psicóticas atenuadas y consumo de cannabis en adolescentes de la población general
2019
El propósito de este estudio fue analizar la relación entre las experiencias psicóticas atenuadas y el consumo de cannabis en una muestra representativa de adolescentes de la población general. Un total de 1,588 estudiantes (M=16,13 años; DT = 1,36), 739 eran hombres (46,5%), pertenecientes a 34 escuelas y 98 aulas, seleccionados mediante muestreo aleatorio estratificado por conglomerados, fueron encuestados. Los instrumentos administrados fueron el Cuestionario de Pródromos de Psicosis-Breve, el Cuestionario de Capacidades y Dificultades, el Cuestionario de Consumo de Sustancias Modificado, el Penn Matrix Reasoning Test (PMRT), la Family Affluence Scale-II y la Escala Oviedo de Infrecuenci…
Schizophrenia polygenic risk score and cannabis use modify psychosis expression in first episode psychosis patients and population controls
2019
AbstractBackgroundDiagnostic categories within the psychosis spectrum are widely used in clinical practice, however psychosis may occur on a continuum. Therefore, we explored whether the continuous distribution of psychotic symptoms across categories is a function of genetic as well as environmental risk factors, such as polygenic risk scores (PRSs) and cannabis use.MethodsAs part of the EU-GEI study, we genotyped first episode psychosis patients (FEP) and population controls, for whom transdiagnostic dimensions of psychotic symptoms or experiences were generated using item response bi-factor modelling. Linear regression was used, separately in patients and controls, to test the association…
Interaction between cannabis consumption and childhood abuse in psychotic disorders: preliminary findings on the role of different patterns of cannab…
2015
Aim Several studies have suggested that lifetime cannabis consumption and childhood abuse synergistically contribute to the risk for psychotic disorders. This study aimed to extend existing findings regarding an additive interaction between childhood abuse and lifetime cannabis use by investigating the moderating role of type and frequency of cannabis use. Methods Up to 231 individuals presenting for the first time to mental health services with psychotic disorders and 214 unaffected population controls from South London, United Kingdom, were recruited as part of the Genetics and Psychosis study. Information about history of cannabis use was collected using the Cannabis Experiences Question…
Cannabis and Psychosis: A Causal Association
2021
Nowadays, the use of cannabis is widespread around the world and THC content of confiscated cannabis has increased in the last years. This fact has raised some consequences, especially in the mental health of the people. Although there have existed some initial controversies about the relationship between cannabis and psychosis, at the present time there are some certainties of the causal association between them. Through the Bradford Hill postulates, we will try to demonstrate that cannabis produces psychosis. The strength of the association, the consistency along the studies, biological gradient, temporality, plausibility, coherence, experimentation, and analogies support the cause-effect…
Diferencias de género entre autocultivadores de cannabis en España
2019
The increase in cannabis use coincides with the proliferation of small-scale cannabis cultivation. These crops facilitate substance availability and increased use. Some investigations have studied the characteristics of small-scale cultivators; however, it is not known whether their profiles differ by gender. The aim of the present study was to analyse differences among growers regarding sociodemographic variables, patterns of use and health problems from a gender perspective. A descriptive observational study was designed with a sample of 219 cultivators (157 men and 62 women), aged between 18 and 34. Problematic use of cannabis (CPQ), cannabis dependence (SDS), patterns of abuse (CAST), r…
Cannabis-associated symptom profiles in patients with first episode psychosis and population controls
2019
AbstractObjectiveThe evidence is mixed on whether cannabis use is associated with a particular symptomatology in first episode psychosis (FEP) patients.The authors set out to investigate a) patterns of association between cannabis use and transdiagnostic symptom dimensions; b) whether the extent of use of cannabis contributes to the variation in clinical and subclinical symptom profiles.MethodThe authors analysed data from 901 patients and 1235 controls recruited across six countries, as part of the European Network of National Schizophrenia Networks Studying Gene-Environment Interactions (EU-GEI) study. Item response modelling was used to estimate two bifactor models, which included genera…