Journal
PHARMACOLOGY BIOCHEMISTRY AND BEHAVIOR
Volume 219, Issue -, Pages -Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.pbb.2022.173432
Keywords
Microbiota; Alcohol; Cocaine; Methamphetamine; Nicotine; Opioids; Anxiety; Depression; Psychosis
Funding
- NIH [R01DA050545, R01DA050545-02S1]
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Accumulating evidence suggests that substance use, dysregulation of the microbiome, and psychiatric disorders are interconnected. Abused substances can alter immune signaling pathways and cause inflammation, while also affecting the composition and function of the gut microbiome. These interactions may contribute to the development of psychiatric disorders, such as anxiety, depression, and psychosis. Understanding this relationship could lead to potential therapeutic targets to mitigate these adverse outcomes.
Accumulating evidence from several studies has shown association between substance use, dysregulation of the microbiome and psychiatric disorders such as depression, anxiety, and psychosis. Many of the abused substances such as cocaine and alcohol have been shown to alter immune signaling pathways and cause inflammation in both the periphery and the central nervous system (CNS). In addition, these substances of abuse also alter the composition and function of the gut microbiome which is known to play important roles such as the synthesis of neurotransmitters and metabolites, that affect the CNS homeostasis and consequent behavioral outcomes. The emerging interactions between substance use, microbiome and CNS neurochemical alterations could contribute to the development of psychiatric disorders. This review provides an overview of the associative effects of substance use such as alcohol, cocaine, methamphetamine, nicotine and opioids on the gut microbiome and psychiatric disorders involving anxiety, depression and psychosis. Understanding the relationship between substance use, microbiome and psychiatric disorders will provide insights for potential therapeutic targets, aimed at mitigating these adverse outcomes.
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