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Tetrahydrocannabinol (THC) is a phytocannabinoid that primarily interacts with the CB1 receptor, a type of G protein-coupled receptor (GPCR) predominantly in and around the chemoreceptor trigger zone (CTZ) and emetic center. THC also blocks the serotonin receptor activity in the dorsal vagal complex (DVC) by inhibiting serotonin release. THC exerts its anti-emetic effects through these interactions, which are beneficial for patients undergoing chemotherapy.
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Administration of &#916;9-Tetrahydrocannabinol (THC) in Adolescent and Adult Mice
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THC and CBD: Similarities and differences between siblings.

Nephi Stella1

  • 1Department of Pharmacology, Department Psychiatry and Behavioral Sciences, Center for Cannabis Research, Center for the Neurobiology of Addiction, Pain, and Emotion, University of Washington School of Medicine, Seattle, WA 98195, USA.

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|January 13, 2023
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This summary is machine-generated.

Tetrahydrocannabinol (THC) and cannabidiol (CBD) have distinct effects on the brain, despite their similar structures. Understanding their unique actions is crucial for developing safe and effective cannabis-based therapeutics.

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Area of Science:

  • Neuroscience
  • Pharmacology
  • Cannabis Science

Background:

  • Cannabis produces two primary cannabinoids: delta-9-tetrahydrocannabinol (THC) and cannabidiol (CBD).
  • THC and CBD share similar chemical structures but possess divergent mechanisms of action and effects on brain function.
  • Both compounds show therapeutic potential, yet THC use is linked to cognitive impairments and mental health issues, while high-dose CBD can cause side effects.

Purpose of the Study:

  • To review recent molecular and preclinical findings on the distinct mechanisms of action and bioactivities of THC and CBD.
  • To examine the impact of THC and CBD on human behavior and disease.
  • To provide a basis for developing safe and effective cannabinoid-based therapeutics.

Main Methods:

  • Literature review of molecular and preclinical studies.
  • Analysis of research on cannabinoid mechanisms of action.
  • Synthesis of data on behavioral and disease-related impacts of THC and CBD.

Main Results:

  • THC and CBD exhibit significantly different molecular targets and downstream effects in the brain.
  • THC is associated with psychoactive effects and potential risks to mental health.
  • CBD demonstrates varied therapeutic effects with a different side effect profile compared to THC.

Conclusions:

  • The distinct bioactivities of THC and CBD necessitate tailored therapeutic strategies.
  • Further research into their specific mechanisms can guide the development of safer cannabis-derived medicines.
  • Understanding these differences is vital for the responsible use of cannabis products in legal markets.