Livia

Groundbreaking New UK Study Confirms Link Between Daily, High Potency Marijuana Use and Psychosis

Shared by Livia - Qua, 20/03/2019 - 14:31
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News
New study from the Lancet Psychiatry Journal is the first to show the impact of marijuana use on population rates of psychosis.
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Jose Luis Vazquez Martinez

The contribution of cannabis use to variation in the incidence of psychotic disorder across Europe (EU-GEI): a multicentre case-control study

Jose Luis Vazquez Martinez - Qua, 20/03/2019 - 10:42
Source: DOI: https://doi.org/10.1016/S2215-0366(19)30048-3 Summary Background Cannabis use is associated with increased risk of later psychotic disorder but whether it affects incidence of the disorder remains unclear. We aimed to identify patterns of cannabis use with the strongest effect on odds...
PIIS2215036619300483.pdf
Jose Luis Vazquez Martinez

El sistema endocannabinoide, posible diana para mejorar las alteraciones cognitivas en el síndrome de Down

Jose Luis Vazquez Martinez - Qua, 13/03/2019 - 13:35
Un estudio ha revelado la participación del sistema endocannabinoide en las alteraciones cognitivas de modelos de ratón de síndrome de Down. La nota completa está disponible en: https://www.neurologia.com/noticia/7128/el-sistema-endocannabinoide-posible-diana-para-mejorar-las-alteraciones-cognitivas...
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Livia

Online Panel Discussion: The Evidence on #Edibles

Shared by Livia - Seg, 25/02/2019 - 15:02
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Online Panel Discussion

Tune into CCSA's Facebook page February 26th at 8am EST for The Evidence on #Edibles, a special Facebook Live event.

CCSA will be live streaming a panel discussion about Canada's upcoming cannabis edible legalisation.

 

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Edie

Association of Cannabis Use in Adolescence and Risk of Depression, Anxiety, and Suicidality in Young Adulthood A Systematic Review and Meta-analysis

Edie - Qui, 14/02/2019 - 09:04
Gobbi G, Atkin T, Zytynski T, et al. Association of Cannabis Use in Adolescence and Risk of Depression, Anxiety, and Suicidality in Young Adulthood: A Systematic Review and Meta-analysis. JAMA Psychiatry. Published online February 13, 2019. doi:10.1001/jamapsychiatry.2018.4500
Association of Cannabis Use in Adolescence and Risk of Depression, Anxiety, and…
Jose Luis Vazquez Martinez

Monitoring Health Concerns Related to Marijuana in Colorado: 2018 Summary

Jose Luis Vazquez Martinez - Dom, 10/02/2019 - 01:51
This report was prepared by the Marijuana Health Monitoring and Research Program at the Colorado Department of Public Health and Environment on behalf of the Retail Marijuana Public Health Advisory Committee. The complete report, including all data and literature review findings, is now presented as...
Monitoring Health Concerns Related to Marijuana in Colorado 2018_01282019.pdf
Jose Luis Vazquez Martinez

Casos de exposición no intencional a cannabis en niños de Uruguay

Jose Luis Vazquez Martinez - Sex, 01/02/2019 - 04:10
El artículo "Exposición no intencional a cannabis en niños en el marco de la regulación del mercado en Uruguay. Reporte de casos asistidos en el Departamento de Emergencia del Centro Hospitalario Pereira Rossell entre marzo y junio de 2017" se publicó en la revista Archivos de Pediatría del Uruguay...
intoxicación no intencional por cannabis en niños de Uruguay.pdf
Jose Luis Vazquez Martinez

Nora Volkow | Cannabis Effects on the Human Brain

Jose Luis Vazquez Martinez - Qui, 24/01/2019 - 15:05
Narcotics: Problems and Solutions of This Global Issue Workshop 23-24 November 2016 Following a special wish of Pope Francis, the Pontifical Academies of Sciences is organizing a two-day Workshop on Narcotics: Problems and Solutions of this Global Issue on 23-24 November 2016. The current system to...
Livia

Age‐Varying Effects of Cannabis Use Frequency and Disorder on Symptoms of Psychosis, Depression and Anxiety in Adolescents and Adults

Shared by Livia - Sex, 18/01/2019 - 06:22
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Scientific article
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Leadbeater, Bonnie J., Megan E. Ames, and Ashley N. Linden‐Carmichael. "Age‐varying effects of cannabis use frequency and disorder on symptoms of psychosis, depression and anxiety in adolescents and adults." Addiction 114, no. 2 (2019): 278-293.

A recent study, published in the Journal of Addiction, has examined the association of cannabis use, cannabis use disorder and symptoms of psychosis, depression and anxiety in an adolescent and adult sample. The researchers also examined the differences in these associations and the onset of cannabis use and sex differences.

Highlights of results:

  • Cannabis use was associated with psychotic symptoms following age 22, with depressive symptoms from ages 16–19 and following age 25, but not with anxiety symptoms.
  • Cannabis Use Disorder was associated with psychotic symptoms following age 23...
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Livia

Conditional Probabilities of Substance Use Disorders and Associated Risk Factors

Shared by Livia - Seg, 14/01/2019 - 18:16
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Scientific article
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Marel, C., Sunderland, M., Mills, K. L., Slade, T., Teesson, M., & Chapman, C. (2019). Conditional probabilities of substance use disorders and associated risk factors: Progression from first use to use disorder on alcohol, cannabis, stimulants, sedatives and opioids. Drug and alcohol dependence, 194, 136-142.

Highlights

Pre-existing mental disorders increases the risk of developing SUD.

  • Prior SUD increases the risk of transitioning from use to use disorder.
  • Highest rates of transition to SUD occurred among stimulant and opioid users.
  • Mood and anxiety disorders increased the risk of transitioning to AUD and CUD.
  • The rapidity of transition to SUD emphasizes the narrow opportunity to intervene.

Abstract

Background

Relatively little is known about factors that may lead to the development of a substance use disorder (SUD), across a range of drug classes. This study aimed to identify...

Livia

Cannabis Use and Risk of Schizophrenia: A Mendelian Randomization Study

Shared by Livia - Sáb, 12/01/2019 - 20:30
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Scientific article
Published by / Citation
Vaucher, J., Keating, B. J., Lasserre, A. M., Gan, W., Lyall, D. M., Ward, J., ... & Holmes, M. V. (2017). Cannabis use and risk of schizophrenia: a Mendelian randomization study. Molecular psychiatry.

Abstract

Cannabis use is observationally associated with an increased risk of schizophrenia, but whether the relationship is causal is not known. Using a genetic approach, we took 10 independent genetic variants previously identified to associate with cannabis use in 32 330 individuals to determine the nature of the association between cannabis use and risk of schizophrenia. Genetic variants were employed as instruments to recapitulate a randomized controlled trial involving two groups (cannabis users vs nonusers) to estimate the causal effect of cannabis use on risk of schizophrenia in 34...

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Jose Luis Vazquez Martinez

Primeros episodios psicóticos y consumo de cannabis: interacción gen-ambiente. ¿Mito o realidad?

Jose Luis Vazquez Martinez - Sex, 11/01/2019 - 16:00
El Dr. Luis San aborda la relación entre ls primeros episodios psicóticos y el consumo de cannabis. Presenta información de manaera muy interesante y amena, usando varios estuidos y publicaciones científicas para hablar sobre lo complejo de esta relación.
Jose Luis Vazquez Martinez

Acute Effects of Smoked and Vaporized Cannabis in Healthy Adults Who Infrequently Use Cannabis A Crossover Trial

Jose Luis Vazquez Martinez - Sex, 04/01/2019 - 03:58
Research recently published by Spindle et al shows that even relatively low-potency cannabis can adversely affect inexperienced users. According to the results of this research, vaping cannabis could produce more pronounced drug effects and impairment than traditional smoking methods. To read the...
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Jose Luis Vazquez Martinez

Esquizofrenia y Cannabis: Conferencia del Dr. Francisco Arias, mayo 2017

Jose Luis Vazquez Martinez - Qua, 02/01/2019 - 20:09
Conclusiones El consumo de cannabis es un posible factor de riesgo para esquizofrenia El consumo de cannabis adelanta la edad de inicio de la esquizofrenia Existen distintos factores de vulnerabilidad genéticos para psicosis en consumidores de cannabis El inicio temprano en el consumo de cannabis...
Jose Luis Vazquez Martinez

Triggering Myocardial Infarction by Marijuana

Jose Luis Vazquez Martinez - Qua, 26/12/2018 - 16:48

In 2001, Murray Mittleman and other researchers published the article 'Triggering Myocardial Infarction by Marijuana.' They interviewed 3,882 patients with acute myocardial infarction, on average four days after infarction onset. They used the case-crossover study design to compare the reported use of marijuana within 60 minutes preceding symptoms of myocardial infarction onset to its expected frequency using self-matched control data. The results show that in the studied population, the risk of myocardial infarction onset was elevated 4.8 times over baseline in the first hour after marijuana...

Jose Luis Vazquez Martinez

Posibles problemas por consumo de cannabis

Jose Luis Vazquez Martinez - Qua, 26/12/2018 - 15:14
Independientemente de su estatus legal, el consumo de mariguana puede producir daños a la salud. Se trata de una droga asociada con menor mortalidad que otras sustancias, pero que no está exenta de daños potenciales y se asocia con riesgos mayores si se consume en la adolescencia. A continuación se...
Posibles problemas por consumo de cannabis
Livia

Website Launched to Teach Youth about Risks of Cannabis

Shared by Livia - Qui, 20/12/2018 - 12:46
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News

With legalization of recreational cannabis looming, The Schizophrenia Society of Canada wants young people to understand the risks of using the drug.

The society has launched a new website to increase awareness.

‘Cannabis and Psychosis: Explore the Link’ aims to provide comprehensive and accessible information to help youth better understand the issue.

The website states: “Regular cannabis use impacts the development of a chronic life-long psychotic disorder in at risk individuals and is associated with an earlier age of onset of psychosis. However, there is currently no way to...

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Livia

Conductores jóvenes que utilizan Cannabis en mayor riesgo de colisiones

Shared by Livia - Qui, 20/12/2018 - 12:45
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Scientific article
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Ronen, A., Chassidim, H. S., Gershon, P., Parmet, Y., Rabinovich, A., Bar-Hamburger, R., ... & Shinar, D. (2010). The effect of alcohol, THC and their combination on perceived effects, willingness to drive and performance of driving and non-driving tasks. Accident Analysis & Prevention, 42(6), 1855-1865.

It has been suggested that cannabis use increases risk of driving collisions through affecting braking and choice reaction time; causing impairment of lane position, disrupting head-way and dynamic tracking; distorting time perception; reducing divided and sustained attention; and increasing caution. 

A recent Canadian study, published just two days before cannabis was legalized across the country, investigated the impact of cannabis use on driving performance in young recreational users.

The study investigated 45 recreational marijuana users between the ages of 18 and 24. Participant’s...

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Edie

Stopping Cannabis Use Is Associated with Improved Memory

Shared by Edie - Qui, 20/12/2018 - 11:34
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Scientific article
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Schuster, R. M., Gilman, J., Schoenfeld, D., Evenden, J., Hareli, M., Ulysse, C., ... & Evins, A. E. (2018). One Month of Cannabis Abstinence in Adolescents and Young Adults Is Associated With Improved Memory. The Journal of Clinical Psychiatry, 79(6), 0-0.

The controversial subject of cannabis legalisation has led to the increased urgency in understanding the full health and social implications of the drug use. Cannabis use is particularly prevalent amongst adolescence - a period of time where young people are going through significant neural development. Cannabis use is thought to affect normal neuromaturation, increasing the risk of cognitive impairment. 

A recent study, published in the Journal of Clinical Psychiatry, has investigated whether young people can recover from drug-induced cognitive impairment by stopping cannabis use for an...

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