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Cannabis: all studies

Page 72 of 289: studies 711 to 720 of 2,882, newest first. Back to the cannabis overview

Research

Acute Delta 9-tetrahydrocannabinol administration differentially alters the hippocampal opioid system in adult female and male rats.

Synapse October 2021 Kyle A Windisch, Sanoara Mazid, Megan A Johnson et al.

Our prior studies demonstrated that the rat hippocampal opioid system can undergo sex-specific adaptations to external stimuli that can influence opioid-associated learning processes. This opioid system extensively overlaps with the cannabinoid system. Moreover, acute administration of Δ9 Tetrahydrocannabinoid (THC), the primary psychoactive constituent of cannabis, can alter cognitive...

DOI: 10.1002/syn.22218 (opens in new tab) Full text (opens in new tab) Delta opioid receptor Hippocampal ca3 Sex differences Δ9-tetrahydrocannabinol

Cannabis use disorder and dissociation: A report from a prospective first-episode psychosis study.

Drug and Alcohol Dependence October 1, 2021 Valerio Ricci, Franca Ceci, Francesco di Carlo et al.

BACKGROUND Cannabis is the most used recreational drug worldwide. Its use can increase the risk of developing psychotic disorders and exacerbate their course. However, the relationship between cannabis use and dissociative symptoms has been scarcely investigated. AIMS To examine differences in psychotic and dissociative symptoms, and in functioning in first-episode psychotic patients (FEPp)...

Long-Term Recreational Cannabis Use Is Associated With Lower Executive Function and Processing Speed in a Pilot Sample of Older Adults

Journal of geriatric psychiatry and neurology September 28, 2021 K. Stypulkowski, R. Thayer

More older adults are using cannabis for recreational and/or medical purposes, but most studies examining cognitive function and cannabis use do not include older adults. The current small pilot study sought to compare cognitive function and emotional functioning among adults age 60 and older who were regular, primarily recreational cannabis users (n = 28) and nonusers (n = 10). A bimodal...

A Proteomic View of Cellular and Molecular Effects of Cannabis

Biomolecules September 27, 2021 Morteza Abyadeh, Vivek Gupta, João A. Paulo et al. 35 citations

), popularly known as marijuana, is the most commonly used psychoactive substance and is considered illicit in most countries worldwide. However, a growing body of research has provided evidence of the therapeutic properties of chemical components of cannabis known as cannabinoids against several diseases including Alzheimer's disease (AD), multiple sclerosis (MS), Parkinson's disease,...

Cannabis and Cognition

September 27, 2021

Cannabis can be associated with acute cognitive changes. Acute cannabis intoxication results in impaired concentration, impaired attention, impulsivity, and decreases in working memory. In adults, most of the effects wear off with abstinence. Impulsivity and long-term impairment in decision making is seen in heavy cannabis users. In adolescents, cannabis use is more closely associated with...

Online Knowledge Translation Program Involving Video Games and University Student–Led Tutorials About Cannabis and Psychosis for Black Youth: Mixed Method Feasibility Study

JMIR Formative Research September 23, 2021 Payal Jani, Nuri Song, Erin Artna et al.

Background We have piloted a new online knowledge translation (KT) program created to educate youth about cannabis effects, which uniquely focuses on mental health risks for Black youth. Youth are generally unaware of the research linking underage usage and the risk of psychosis. Youth from some Black racialized communities in Ontario may be disproportionately affected and in need of this...

Regular Recreational Cannabis Users Exhibit Altered Neural Oscillatory Dynamics during Attention Reorientation

Psychological Medicine September 22, 2021 Seth D Springer, Rachel K. Spooner, Mikki Schantell et al.

Abstract Background Cannabis is the most widely used illicit drug in the United States and is often associated with changes in attention function, which may ultimately impact numerous other cognitive faculties (e.g. memory, executive function). Importantly, despite the increasing rates of cannabis use and widespread legalization in the United States, the neural mechanisms underlying attentional...

Cannabis Induced Psychotic Disorder in Cannabis Withdrawal During COVID- 19 Lockdown : A Case Report

Indian Journal of Clinical Psychiatry. September 8, 2021 Dhana Ratna Shakya, Sandesh Raj Upadhaya 8 citations

In the light of genetic predisposition, cannabis may act as a trigger for psychosis in a predisposed individual who otherwise do not develop psychotic symptoms if he/she abstains from the substance. Usually, cannabisinduced psychosis occurs during heavy use and during intoxication. There are only a few reported cases when psychotic symptoms occurred during cannabis withdrawal state. We report a...

Anxiety, depression-like behaviors and biochemistry disorders induced by cannabis extract in female mice

Saudi Journal of Biological Sciences September 1, 2021 Atheer M. Mohammed, Ibrahim A. Khardali, Magbool E. Oraiby et al. 7 citations

Cannabis is an annual herbaceous plant sometimes grown for decoration and used as bird food that looks like flax. The study wanted to determine if a Cannabis extract may have an effect on how anxious and depressed the female mice behaved. forty healthy female mice were divided into four groups. Tap water was administered to the first group (control). Ethanol was administered to second group...

Cannabis-Induced Malignant Catatonia: A Medical Emergency and Review of Prior Case Series

Cureus August 27, 2021 Batool Sheikh, Tinu Hirachan, Kunal K. Gandhi et al. 5 citations

Few case reports of catatonia associated with cannabis use are reported. Here, we describe a case of a 35-year-old African American male who developed malignant catatonia following heavy cannabis use. The patient was brought to the emergency department (ED) for altered mental status, hypertension, and erratic behavior. Before his ED presentation, he was smoking cannabis in heavy amounts,...