Cue-induced drug craving progressively increases after prolonged withdrawal from drug self-administration in laboratory animals, a behavioral phenomenon termed 'incubation of drug craving.' Studies over the years have revealed several important neural mechanisms contributing to incubation of drug craving. In this mini-review, we first discuss three excellent Addiction Biology publications on incubation of drug craving in both human and laboratory animals. We then review several key publications from the past year on behavioral and mechanistic findings related to incubation of drug craving.
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http://dx.doi.org/10.1111/adb.12205 | DOI Listing |
Substance use disorders (SUDs) are a significant public health concern, with over 30% failing available treatment. Severe SUD is characterized by drug-cue reactivity that predicts treatment-failure. We leveraged this pathophysiological feature to personalize deep brain stimulation (DBS) of the nucleus accumbens region (NAc) in an SUD patient.
View Article and Find Full Text PDFContemp Clin Trials Commun
February 2025
Dept. of Psychiatry and Behavioral Neurosciences, School of Medicine, Wayne State University, Detroit, MI, USA.
Background: In people with substance use disorders (SUDs), stress-exposure can impair executive function, and increase craving and likelihood of drug-use recurrence. Research shows that acute stressors increase drug-seeking behavior; however, mechanisms underlying this effect are incompletely understood. The Competing Neurobehavioral Decisions System theory posits that persons with SUDs may have hyperactive limbic reward circuitry and hypoactive executive control circuitry.
View Article and Find Full Text PDFBiol Psychiatry
January 2025
Department of Neuroscience, Rockefeller Neuroscience Institute, West Virginia University, Morgantown, WV, USA; Department of Behavioral Medicine and Psychiatry, Rockefeller Neuroscience Institute, West Virginia University, Morgantown, WV, USA. Electronic address:
Background: Opioid use disorder remains a critical healthcare challenge as current therapeutic strategies have limitations resulting in high recurrence and deaths. We evaluated safety and feasibility of focused ultrasound (FUS) neuromodulation to reduce substance cravings and use in severe opioid- and co-occurring substance use disorders.
Methods: This prospective, open-label, single-arm study enrolled 8 participants with severe, primary opioid use disorder with co-occurring substance use.
Int J Mol Sci
December 2024
Neuropharmacology Laboratory, The Mina & Everard Goodman Faculty of Life Sciences, Bar-Ilan University, Ramat Gan 5290002, Israel.
Chronic cocaine use triggers inflammatory and oxidative processes in the central nervous system, resulting in impaired microglia. Mesenchymal stem cells, known for their immunomodulatory properties, have shown promise in reducing inflammation and enhancing neuronal survival. The study employed the cocaine self-administration model, focusing on ionized calcium-binding adaptor protein 1 (Iba-1) and cell morphology as markers for microglial impairment and PLX-PAD cells as a treatment for attenuating cocaine craving.
View Article and Find Full Text PDFJ Psychopathol Clin Sci
January 2025
Department of Human Development and Family Studies, Pennsylvania State University.
Ecological momentary assessment is increasingly leveraged to better understand affective processes underlying substance use disorder treatment and recovery. Research in this area has yielded novel insights into the roles of mean levels of positive affect (PA) and negative affect (NA) in precipitating drug craving and substance use in daily life. Little of the extant substance use disorder treatment research, however, considers dynamic patterns of PA and NA, separately or in relation to one another, or how such patterns may differ from those observed among nonclinical samples.
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