Cannabis-Use Disorder

Marijuana's Uncertain Status: Closing the Gap Between State and Federal Policies

Marijuana's Uncertain Status: Closing the Gap Between State and Federal Policies

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Senator Elizabeth Warren introduced a bipartisan bill in June 2018 (S.3032) that would exempt most marijuana-related activities from the Controlled Substances Act when they are allowed under state or tribal law.

Marijuana Use Associated With Poorer Depression Outcomes, Increased Suicidal Ideation

Marijuana Use Associated With Poorer Depression Outcomes, Increased Suicidal Ideation

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These data suggest that marijuana use, particularly non-medical use, is associated with poorer depression and anxiety outcomes in psychiatric patients.

Orbitofrontal Connectivity Associated With Mood, Anxiety Symptoms in Adolescents Who Use Marijuana

Orbitofrontal Connectivity Associated With Mood, Anxiety Symptoms in Adolescents Who Use Marijuana

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Marijuana usage is increasing in adolescents, and the rate of comorbidity with mood and anxiety disorders is high. These findings may aid in identifying adolescents who are potentially at risk.

FDA Warns Against Risks of Contaminated Synthetic Cannabis

FDA Warns Against Risks of Contaminated Synthetic Cannabis

Users of synthetic marijuana products and health care providers should be aware of the risk of bleeding associated with contamination of synthetic cannabinoid products with brodifacoum.

Many US Adults View Marijuana Use Positively

Many US Adults View Marijuana Use Positively

Most US adults believe that marijuana has at least 1 benefit.

Cannabis Associated With Poorer Symptom Course in Anxiety, Mood Disorders

Cannabis Associated With Poorer Symptom Course in Anxiety, Mood Disorders

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These data may be useful to clinicians in gaining insight on the potential risks of cannabis use among their patients with anxiety or mood disorders.

Cannabis Use Prevalence Up Across Adult Age Groups

Cannabis Use Prevalence Up Across Adult Age Groups

Across adult age categories, there was an increase in the prevalence of daily cannabis use after 2007.

Cannabis Use in Adolescents Associated With Symptoms of Psychosis

Cannabis Use in Adolescents Associated With Symptoms of Psychosis

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The association of cannabis use with symptoms of psychosis underscores the need for targeted cannabis use prevention.

Cannabis Use Linked to Psychosis Symptoms in Adolescents

Cannabis Use Linked to Psychosis Symptoms in Adolescents

Cannabis use is associated with psychosis symptoms during adolescence.

Higher Risk for Substance Abuse Among Reservation-Based American Indian Youth

Higher Risk for Substance Abuse Among Reservation-Based American Indian Youth

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Researchers emphasized the necessity of developing targeted interventions to address such health disparities among American Indian communities.

HIV Viral Suppression Rates in Psychiatric Inpatients With Comorbid Substance Use Disorders

HIV Viral Suppression Rates in Psychiatric Inpatients With Comorbid Substance Use Disorders

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A substantial proportion of these individuals diagnosed with HIV, psychiatric disorders, and substance use disorders are out of care and urgently require intervention.

Medical Marijuana Users More Likely to Use Prescription Drugs for Medical, Nonmedical Purposes

Medical Marijuana Users More Likely to Use Prescription Drugs for Medical, Nonmedical Purposes

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Patients who use medical marijuana may be more likely to use prescription drugs for both medical and nonmedical purposes.

Substance Use Disorders Associated With Conversion From Schizotypal Disorder to Schizophrenia

Substance Use Disorders Associated With Conversion From Schizotypal Disorder to Schizophrenia

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These data may be helpful in titrating care for those with schizotypal disorder and comorbid substance abuse disorders to mitigate the risk for conversion to schizophrenia.

Significant variation in mortality trends in substance use disorders among US counties

Mortality rates decreased for alcohol use disorders, self-harm, and interpersonal violence between 1980 and 2014. Mortality rates for drug use disorders increased both nationally and in each county over the same period.

Antisocial and Borderline Personality Disorders Associated With Cannabis Use

Antisocial and Borderline Personality Disorders Associated With Cannabis Use

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The investigators found that antisocial (β=0.23) and borderline (β=0.20) personality disorders were strongly associated with cannabis use as well as with cannabis use disorder.

Increased Odds of Cigarette Use, Relapse Among Cannabis Users

Increased Odds of Cigarette Use, Relapse Among Cannabis Users

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The findings of these analyses suggest that, to an extent, this relationship might be generalized to cannabis users as a whole, not just those diagnosed with a cannabis use disorder.

Scale of Online Marketplace for Marijuana Increasing

Scale of Online Marketplace for Marijuana Increasing

Online marijuana searches grew by 98 percent as a proportion of all searches from 2005 to 2017.

Mortality Rates for Substance Use Disorders, Intentional Injuries Vary Widely By County

Mortality Rates for Substance Use Disorders, Intentional Injuries Vary Widely By County

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Researchers calculated age-standardized mortality rates on a county level in the United States between 1980 and 2014, specifically examining rates for self-harm, interpersonal violence, alcohol use, and drug use.

Cannabis Use Associated With Subsequent Psychotic Experiences in Adolescents

Cannabis Use Associated With Subsequent Psychotic Experiences in Adolescents

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Both early-onset cannabis users and late-onset cannabis users had an increased risk for psychotic experiences at age 18.

Cannabis Use in Adolescence May Mediate Future Hypomania

Cannabis Use in Adolescence May Mediate Future Hypomania

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Frequent cannabis use was associated with subsequent hypomania.

Illicit Marijuana Use Increased in States With Legal Medical Use

Illicit Marijuana Use Increased in States With Legal Medical Use

Cannabis use disorder is also rising faster in states that have legalized marjiuana.

Crystal Structure of Cannabinoid Receptor 1 Determined: Implications for Managing Pain

Crystal Structure of Cannabinoid Receptor 1 Determined: Implications for Managing Pain

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The crystal structure may provide inspiration for designing drugs that refine efficacy and avoid adverse events.

Reduced Bone Density Among Heavy Users of Cannabis

Reduced Bone Density Among Heavy Users of Cannabis

Researchers find heavy users have lower bone density than cigarette smokers.

THC Causes Cognitive Indolence in Rats

THC Causes Cognitive Indolence in Rats

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Δ9-Tetrahydrocannabinol (THC) is the main psychoactive chemical ingredient in cannabis.

Marijuana May Damage Heart More Than Tobacco

Marijuana May Damage Heart More Than Tobacco

One minute of exposure impaired endothelial function in rats for at least 90 minutes.

Marijuana Poisonings in Toddlers Rising in Colorado

Marijuana Poisonings in Toddlers Rising in Colorado

Marijuana-laced candy and baked goods are attractive to children, increasing calls to poison centers.

Synthetic Cannabinoid Drug Poisonings Surge

Synthetic Cannabinoid Drug Poisonings Surge

The increased use of synthetic cannabinoids presents a serious public health threat.

Long-term Marijuana Use Associated with Dampened Nucleus Accumbens Reward Response

Long-term Marijuana Use Associated with Dampened Nucleus Accumbens Reward Response

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Alterations in reward processing may increase users' risk of continued drug use and subsequent addiction.

Severe Cannabis Dependence and Blunted Striatal Dopamine Release: A Comorbidity Independent Effect

Severe Cannabis Dependence and Blunted Striatal Dopamine Release: A Comorbidity Independent Effect

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Chronic and severe cannabis-dependence is associated with deficits in striatal dopamine release.

Marijuana Hair Testing: An Accurate Method for Detecting Consumption?

Marijuana Hair Testing: An Accurate Method for Detecting Consumption?

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Marijuana use is associated with development of various neuropsychiatric conditions such as schizophrenia, anxiety, and depression.

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