Book contents
- Marijuana and Madness
- Marijuana and Madness
- Copyright page
- Contents
- Contributors
- Preface
- Part I Pharmacology of Cannabis and the Endocannabinoid System
- Part II The Changing Face of Cannabis
- Part III Cannabis and the Brain
- Part IV Cannabis, Anxiety, and Mood
- Part V Cannabis and Psychosis
- Part VI Cannabinoids and Schizophrenia: Aetiopathology and Treatment Implications
- Chapter 17 Does Cannabis Cause Psychosis?
- Chapter 18 Post-mortem Studies of the Brain Cannabinoid System in Schizophrenia
- Chapter 19 The Endocannabinoid System in Schizophrenia
- Chapter 20 Cannabidiol as a Potential Antipsychotic
- Chapter 21 Genetic Explanations for the Association between Cannabis and Schizophrenia
- Part VII Cannabinoids and Schizophrenia: Aetiopathology and Treatment Implications
- Part VIII Special Topics
- Index
- References
Chapter 19 - The Endocannabinoid System in Schizophrenia
from Part VI - Cannabinoids and Schizophrenia: Aetiopathology and Treatment Implications
Published online by Cambridge University Press: 12 May 2023
- Marijuana and Madness
- Marijuana and Madness
- Copyright page
- Contents
- Contributors
- Preface
- Part I Pharmacology of Cannabis and the Endocannabinoid System
- Part II The Changing Face of Cannabis
- Part III Cannabis and the Brain
- Part IV Cannabis, Anxiety, and Mood
- Part V Cannabis and Psychosis
- Part VI Cannabinoids and Schizophrenia: Aetiopathology and Treatment Implications
- Chapter 17 Does Cannabis Cause Psychosis?
- Chapter 18 Post-mortem Studies of the Brain Cannabinoid System in Schizophrenia
- Chapter 19 The Endocannabinoid System in Schizophrenia
- Chapter 20 Cannabidiol as a Potential Antipsychotic
- Chapter 21 Genetic Explanations for the Association between Cannabis and Schizophrenia
- Part VII Cannabinoids and Schizophrenia: Aetiopathology and Treatment Implications
- Part VIII Special Topics
- Index
- References
Summary
An excess or deficit of specific neurotransmitters or receptors has been the dominant theme for explaining the pathology of major mental illness for many decades. The best known example is that hyperdopaminergia is the cause of psychosis. Similar proposals have been made for glutamate and the endocannabinoids, based on the ability of drugs acting on these systems to elicit psychotic mental states. In addition, cannabis is also a risk factor for the development of schizophrenia. On this background, researchers have measured several endocannabinoid components in people with psychotic illness compared to controls. These components include synthesizing and degrading enzymes for anandamide and 2-arochodonylglycerol, the amount of endocannabinoid transmitter in the bloodstream or CSF and the availability of cannabinoid receptors. There is inconsistency in the field as a whole, but a number of intriguing findings have emerged, particularly reports of increased anandamide level in psychosis. In this chapter, the major studies are reviewed and collated.
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- Marijuana and Madness , pp. 189 - 199Publisher: Cambridge University PressPrint publication year: 2023