Chris Watts Cbi Transcript
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Further, inhibiting oxidative stress and NF-B transcription during abstinence prevents binge-induced neurodegeneration. Abstinence leads to increased brain cell genesis, perhaps contributing to the long-term return of brain function and structure following alcohol.
• In all animals abstinent from the four drugs (alcohol, nicotine, THC and cocaine), brain degeneration and/or cell genesis is induced, and these effects are blocked by drugs that prevent oxidative stress and NF-B transcription and by drugs that promote CREB transcription. • Long-term abstinence has dramatic effects on brain cell genesis in the hippocampus, with many new microglia, new neurons and many new spines. After months of abstinence, many new spines are formed across the hippocampus, and many new dendritic branches form in the hippocampus. Such brain changes could contribute to the long-term return of brain function and structure after abstinence from alcohol, nicotine, THC and cocaine.
Alcohol induces brain degeneration during intoxication and cell genesis during abstinence. Effects are strongest in the brain regions involved in reward and stress, perhaps contributing to the neurological deficits seen in patients with alcohol dependence. Inhibition of oxidative stress and NF-B transcription or activation of CREB transcription prevent these binge ethanol-induced brain effects. We previously found that cell genesis in the hippocampus occurs over multiple months of abstinence, with many new neurons and many new microglia, perhaps contributing to the recovery of brain function and structure following long-term abstinence in humans. Key messages: • Relevant behavioral and histological patterns are found in animals abstinent from four different drugs (alcohol, nicotine, THC and cocaine). • Relevant behavioral and histological patterns are found in animals abstinent from different drug classes (opiates, stimulants, cannabinoids) and may be related to addictive behaviors and abuse of these drugs.
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