Skip to the content
  • 719-347-5400
  • info@realmofcaring.org
  • Research
    • Research Library
    • Participate
      • Long-Term CBD Study
      • Observational Research Registry
      • Women’s Veteran Study
  • Resources
    • Client Portal
      • Dosing & Administration
      • Client Education Series
      • Client F.A.Q.
        • Client Additional Questions
      • For Pets
      • Glossary
      • Locate a Healthcare Professional
      • Medical Cannabis Cards
      • Printable Resources
    • Healthcare Portal
      • Dosing & Administration
      • Join Our List of Healthcare Professionals
      • Practitioner Education
    • Events
      • Book Club
      • Virtual Support Groups
    • Merch Shop
  • Blog
    • Cannabis Education
    • Client Stories
  • About
    • Who We Are
    • In the News
    • Our Supporters
    • Financials
  • Contact Us
    • Call or Email
    • Request an Appointment
    • Volunteer
  • Research
    • Research Library
    • Participate
      • Long-Term CBD Study
      • Observational Research Registry
      • Women’s Veteran Study
  • Resources
    • Client Portal
      • Dosing & Administration
      • Client Education Series
      • Client F.A.Q.
        • Client Additional Questions
      • For Pets
      • Glossary
      • Locate a Healthcare Professional
      • Medical Cannabis Cards
      • Printable Resources
    • Healthcare Portal
      • Dosing & Administration
      • Join Our List of Healthcare Professionals
      • Practitioner Education
    • Events
      • Book Club
      • Virtual Support Groups
    • Merch Shop
  • Blog
    • Cannabis Education
    • Client Stories
  • About
    • Who We Are
    • In the News
    • Our Supporters
    • Financials
  • Contact Us
    • Call or Email
    • Request an Appointment
    • Volunteer
  • Donate
  • Register
  • Login
  • Research
    • Research Library
    • Participate
      • Long-Term CBD Study
      • Observational Research Registry
      • Women’s Veteran Study
  • Resources
    • Client Portal
      • Dosing & Administration
      • Client Education Series
      • Client F.A.Q.
        • Client Additional Questions
      • For Pets
      • Glossary
      • Locate a Healthcare Professional
      • Medical Cannabis Cards
      • Printable Resources
    • Healthcare Portal
      • Dosing & Administration
      • Join Our List of Healthcare Professionals
      • Practitioner Education
    • Events
      • Book Club
      • Virtual Support Groups
    • Merch Shop
  • Blog
    • Cannabis Education
    • Client Stories
  • About
    • Who We Are
    • In the News
    • Our Supporters
    • Financials
  • Contact Us
    • Call or Email
    • Request an Appointment
    • Volunteer
  • Research
    • Research Library
    • Participate
      • Long-Term CBD Study
      • Observational Research Registry
      • Women’s Veteran Study
  • Resources
    • Client Portal
      • Dosing & Administration
      • Client Education Series
      • Client F.A.Q.
        • Client Additional Questions
      • For Pets
      • Glossary
      • Locate a Healthcare Professional
      • Medical Cannabis Cards
      • Printable Resources
    • Healthcare Portal
      • Dosing & Administration
      • Join Our List of Healthcare Professionals
      • Practitioner Education
    • Events
      • Book Club
      • Virtual Support Groups
    • Merch Shop
  • Blog
    • Cannabis Education
    • Client Stories
  • About
    • Who We Are
    • In the News
    • Our Supporters
    • Financials
  • Contact Us
    • Call or Email
    • Request an Appointment
    • Volunteer
  • Donate
  • Register
  • Login
  • Anxiety
Loading...

Cannabinoid facilitation of fear extinction memory recall in humans

A first-line approach to treat anxiety disorders is exposure-based therapy, which relies on extinction processes such as repeatedly exposing the patient to stimuli (conditioned stimuli; CS) associated with the traumatic, fear-related memory. However, a significant number of patients fail to maintain their gains, partly attributed to the fact that this inhibitory learning and its maintenance is temporary and conditioned fear responses can return. Animal studies have shown that activation of the cannabinoid system during extinction learning enhances fear extinction and its retention. Specifically, CB1 receptor agonists, such as Δ9-tetrahydrocannibinol (THC), can facilitate extinction recall by preventing recovery of extinguished fear in rats. However, this...
Read More

Cannabinoid-related agents in the treatment of anxiety disorders: current knowledge and future perspectives

Rich evidence has shown that cannabis products exert a broad gamut of effects on emotional regulation. The main psychoactive ingredient of hemp, Δ9 -tetrahydrocannabinol (THC), and its synthetic cannabinoid analogs have been reported to either attenuate or exacerbate anxiety and fear-related behaviors in humans and experimental animals. The heterogeneity of cannabisinduced psychological outcomes reflects a complex network of molecular interactions between the key neurobiological substrates of anxiety and fear and the endogenous cannabinoid system, mainly consisting of the arachidonic acid derivatives anandamide and 2-arachidonoylglycerol (2-AG) and two receptors, respectively termed CB1 and CB2. The high degree of interindividual variability in the responses to cannabis...
Read More

Chronic blockade of cannabinoid CB2 receptors induces anxiolytic-like actions associated with alterations in GABAA receptors

BACKGROUND AND PURPOSE: The aim of this study was to explore the effects of CB2 receptor agonist and antagonist in the regulation of anxiety-like behaviours. EXPERIMENTAL APPROACHES: Effects of acute and chronic treatment with the CB2 receptor agonist JWH133 and CB2 receptor antagonist AM630 were evaluated in the light-dark box (LDB) and elevated plus maze (EPM) tests in Swiss ICR mice. CB2 receptor, GABAAa2 and GABAAg2 gene and protein expression in the cortex and amygdala of mice chronically treated with JWH133 or AM630 were examined by RT-PCR and Western blot. Effects of chronic AM630 treatment were evaluated in spontaneously anxious DBA/2 mice in LDB....
Read More

Distinct Effects of 9-Tetrahydrocannabinol and Cannabidiol on Neural Activation During Emotional Processing

CONTEXT: Cannabis use can both increase and reduce anxiety in humans. The neurophysiological substrates of these effects are unknown. OBJECTIVE: To investigate the effects of 2 main psychoactive constituents of Cannabis sativa (Delta9-tetrahydrocannabinol [Delta9-THC] and cannabidiol [CBD]) on regional brain function during emotional processing. DESIGN: Subjects were studied on 3 separate occasions using an event-related functional magnetic resonance imaging paradigm while viewing faces that implicitly elicited different levels of anxiety. Each scanning session was preceded by the ingestion of either 10 mg of Delta9-THC, 600 mg of CBD, or a placebo in a double-blind, randomized, placebo-controlled design. PARTICIPANTS: Fifteen healthy, English-native, right-handed men who...
Read More

Effects of Cannabidiol (CBD) on Regional Cerebral Blood Flow

Animal and human studies have suggested that cannabidiol (CBD) may possess anxiolytic properties, but how these effects are mediated centrally is unknown. The aim of the present study was to investigate this using functional neuroimaging. Regional cerebral blood flow (rCBF) was measured at rest using 99mTc-ECD SPECT in 10 healthy male volunteers, randomly divided into two groups of five subjects. Each subject was studied on two occasions, 1 week apart. In the first session, subjects were given an oral dose of CBD (400 mg) or placebo, in a double-blind procedure. SPECT images were acquired 90 min after drug ingestion. The Visual Analogue Mood Scale...
Read More

Is cannabis treatment for anxiety, mood, and related disorders ready for prime time?

Anxiety and related disorders are the most common mental conditions affecting the North American population. Despite their established efficacy, first-line antidepressant treatments are associated with significant side effects, leading many afflicted individuals to seek alternative treatments. Cannabis is commonly viewed as a natural alternative for a variety of medical and mental health conditions. Currently, anxiety ranks among the top five medical symptoms for which North Americans report using medical marijuana. However, upon careful review of the extant treatment literature, the anxiolytic effects of cannabis in clinical populations are surprisingly not well-documented. The effects of cannabis on anxiety and mood symptoms have been examined in...
Read More

Neural basis of anxiolytic effects of cannabidiol (CBD) in generalized social anxiety disorder: a preliminary report

Animal and human studies indicate that cannabidiol (CBD), a major constituent of cannabis, has anxiolytic properties. However, no study to date has investigated the effects of this compound on human pathological anxiety and its underlying brain mechanisms. The aim of the present study was to investigate this in patients with generalized social anxiety disorder (SAD) using functional neuroimaging. Regional cerebral blood flow (rCBF) at rest was measured twice using (99m)Tc-ECD SPECT in 10 treatment-naïve patients with SAD. In the first session, subjects were given an oral dose of CBD (400 mg) or placebo, in a double-blind procedure. In the second session, the same procedure was...
Read More

Presynaptically Located CB1 Cannabinoid Receptors Regulate GABA Release from Axon Terminals of Specific Hippocampal Interneurons

To understand the functional significance and mechanisms of action in the CNS of endogenous and exogenous cannabinoids, it is crucial to identify the neural elements that serve as the structural substrate of these actions. We used a recently developed antibody against the CB1 cannabinoid receptor to study this question in hippocampal networks. Interneurons with features typical of basket cells showed a selective, intense staining for CB1 in all hippocampal subfields and layers. Most of them (85.6%) contained cholecystokinin (CCK), which corresponded to 96.9% of all CCK-positive interneurons, whereas only 4.6% of the parvalbumin (PV)-containing basket cells expressed CB1. Accordingly, electron microscopy revealed that CB1-immunoreactive...
Read More

The anxiolytic effect of cannabidiol on chronically stressed mice depends on hippocampal neurogenesis: involvement of the endocannabinoid system

Cannabidiol (CBD), the main non-psychotomimetic component of the plant Cannabis sativa, exerts therapeutically promising effects on human mental health such as inhibition of psychosis, anxiety and depression. However, the mechanistic bases of CBD action are unclear. Here we investigate the potential involvement of hippocampal neurogenesis in the anxiolytic effect of CBD in mice subjected to 14 d chronic unpredictable stress (CUS). Repeated administration of CBD (30 mg/kg i.p., 2 h after each daily stressor) increased hippocampal progenitor proliferation and neurogenesis in wild-type mice. Ganciclovir administration to GFAP-thymidine kinase (GFAP-TK) transgenic mice, which express thymidine kinase in adult neural progenitor cells, abrogated CBD-induced hippocampal neurogenesis....
Read More

β-Caryophyllene, a CB2 receptor agonist produces multiple behavioral changes relevant to anxiety and depression in mice

Recent evidence suggests that the cannabinoid receptor subtype 2 (CB2) is implicated in anxiety and depression disorders, although few systematic studies in laboratory animals have been reported. The aim of the current experiments was to test the effects of the CB2 receptor potent-selective agonist β-caryophyllene (BCP) in animals subjected to models of anxiolytic- and antidepressant-like effects. Therefore effects of BCP (50 mg/kg) on anxiety were assessed using the elevated plus maze (EPM), open field (OF), and marble burying test (MBT). However for depression, the novelty-suppressed feeding (NSF), tail suspension test (TST), and forced swim tests (FST) were used. Results indicated that adult mice receiving...
Read More
« Previous 1 … 10 11 12

REGISTER WITH RoC TODAY!

Realm of Caring focuses on research, education, building community, and improving quality of life. We are an educational resource for consumers, physicians, scientists, governments and the media.
Register now
  • PO Box 15224, Colorado Springs, CO 80935
  • 719-347-5400
  • info@realmofcaring.org

Copyright © 2024 / Realm of Caring Foundation, Inc

  • Privacy
  • Disclaimer

Open the following in new tabs if you:

If you are already a user: Client Login

If you are not, then register: Client Registration

Once Logged in, click below to refresh the page.