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No changes in densities of cannabinoid receptors in the superior temporal gyrus in schizophrenia

Journal Article


Abstract


  • Objective: In recent years, abnormal changes in the endocannabinoid system have been found in schizophrenia. The superior temporal gyrus (STG) is strongly implicated in the pathophysiology of schizophrenia, particularly with regards to auditory hallucinations. In this study, we investigated the binding density of cannabinoid CB1 receptors in the STG of schizophrenia patients compared to control subjects. Methods: Quantitative autoradiography was used to investigate the binding densities of [3H] SR141716A (a selective antagonist) and [3H]CP-55940 (an agonist) to the CB1 receptors in the STG. Post-mortem brain tissue was obtained from the NSW Tissue Resource Centre (Australia). Results: Contrasting to previous findings in the alterations of CB1 receptor densities in the prefrontal, anterior and posterior cingulate cortex of schizophrenia, which were suggested to be associated to impairment of cognition function, no significant

    difference was found between the schizophrenia and control cases in both [3H]SR141716A and [3H]CP-55940 binding. Conclusion: We suggest that CB1 receptors in the STG are not involved in the pathology of schizophrenia and the auditory hallucination symptom of this disease.

Publication Date


  • 2007

Citation


  • Deng, C., Han, M. & Huang, X. (2007). No changes in densities of cannabinoid receptors in the superior temporal gyrus in schizophrenia. Neuroscience Bulletin, 23 (6), 341-347.

Scopus Eid


  • 2-s2.0-38149115416

Ro Metadata Url


  • http://ro.uow.edu.au/hbspapers/1864

Has Global Citation Frequency


Number Of Pages


  • 6

Start Page


  • 341

End Page


  • 347

Volume


  • 23

Issue


  • 6

Abstract


  • Objective: In recent years, abnormal changes in the endocannabinoid system have been found in schizophrenia. The superior temporal gyrus (STG) is strongly implicated in the pathophysiology of schizophrenia, particularly with regards to auditory hallucinations. In this study, we investigated the binding density of cannabinoid CB1 receptors in the STG of schizophrenia patients compared to control subjects. Methods: Quantitative autoradiography was used to investigate the binding densities of [3H] SR141716A (a selective antagonist) and [3H]CP-55940 (an agonist) to the CB1 receptors in the STG. Post-mortem brain tissue was obtained from the NSW Tissue Resource Centre (Australia). Results: Contrasting to previous findings in the alterations of CB1 receptor densities in the prefrontal, anterior and posterior cingulate cortex of schizophrenia, which were suggested to be associated to impairment of cognition function, no significant

    difference was found between the schizophrenia and control cases in both [3H]SR141716A and [3H]CP-55940 binding. Conclusion: We suggest that CB1 receptors in the STG are not involved in the pathology of schizophrenia and the auditory hallucination symptom of this disease.

Publication Date


  • 2007

Citation


  • Deng, C., Han, M. & Huang, X. (2007). No changes in densities of cannabinoid receptors in the superior temporal gyrus in schizophrenia. Neuroscience Bulletin, 23 (6), 341-347.

Scopus Eid


  • 2-s2.0-38149115416

Ro Metadata Url


  • http://ro.uow.edu.au/hbspapers/1864

Has Global Citation Frequency


Number Of Pages


  • 6

Start Page


  • 341

End Page


  • 347

Volume


  • 23

Issue


  • 6