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- W2063723525 abstract "Alcoholism is often comorbid with mood disorders and suicide. We recently reported an upregulation of CB(1) receptor-mediated signaling in the dorsolateral prefrontal cortex (DLPFC) of subjects with major depression who died by suicide. In the present study, we sought to determine whether the changes in depressed suicides would also be present in alcoholic suicides and whether the endocannabinoid (EC) system plays a role in suicide in alcoholism.The density of CB(1) receptor and its mediated [(35)S]GTP gamma S signaling were measured in the DLPFC of alcoholic suicides (AS) (n = 11) and chronic alcoholics (CA) (n = 11). The levels of ECs were measured by a liquid chromatograph/mass spectrometry.The CB(1) receptor density was higher in AS compared with the CA group in the DLPFC. Western blot analysis confirmed a greater immunoreactivity of the CB(1) receptor in AS. The CB(1) receptor-mediated [(35)S]GTP gamma S binding indicated a greater signaling in AS. Higher levels of N-arachidonyl ethanolamide and 2-arachidonylglycerol were observed in the DLPFC of AS.The elevated levels of ECs, CB(1) receptors, and CB(1) receptor-mediated [(35)S]GTP gamma S binding strongly suggest a hyperactivity of endocannabinoidergic signaling in AS. EC system may be a novel therapeutic target for the treatment of suicidal behavior." @default.
- W2063723525 created "2016-06-24" @default.
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- W2063723525 date "2005-03-01" @default.
- W2063723525 modified "2023-09-25" @default.
- W2063723525 title "Elevated levels of endocannabinoids and CB1 receptor-mediated G-protein signaling in the prefrontal cortex of alcoholic suicide victims" @default.
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- W2063723525 doi "https://doi.org/10.1016/j.biopsych.2004.11.033" @default.
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