Prefrontal-habenular microstructural impairments in human cocaine and heroin addiction.

Autor:	King SG; Departments of Psychiatry and Neuroscience, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA., Gaudreault PO; Departments of Psychiatry and Neuroscience, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA., Malaker P; Departments of Psychiatry and Neuroscience, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA., Kim JW; Departments of Radiology and Psychiatry, Baylor College of Medicine, Houston, TX 77030, USA., Alia-Klein N; Departments of Psychiatry and Neuroscience, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA., Xu J; Departments of Radiology and Psychiatry, Baylor College of Medicine, Houston, TX 77030, USA., Goldstein RZ; Departments of Psychiatry and Neuroscience, Icahn School of Medicine at Mount Sinai, New York, NY 10029, USA. Electronic address: rita.goldstein@mssm.edu.
Jazyk:	angličtina
Zdroj:	Neuron [Neuron] 2022 Nov 16; Vol. 110 (22), pp. 3820-3832.e4. Date of Electronic Publication: 2022 Oct 06.
DOI:	10.1016/j.neuron.2022.09.011
Abstrakt:	The habenula (Hb) is central to adaptive reward- and aversion-driven behaviors, comprising a hub for higher-order processing networks involving the prefrontal cortex (PFC). Despite an established role in preclinical models of cocaine addiction, the translational significance of the Hb and its connectivity with the PFC in humans is unclear. Using diffusion tractography, we detailed PFC structural connectivity with the Hb and two control regions, quantifying tract-specific microstructural features in healthy and cocaine-addicted individuals. White matter was uniquely impaired in PFC-Hb projections in both short-term abstainers and current cocaine users. Abnormalities in this tract further generalized to an independent sample of heroin-addicted individuals and were associated, in an exploratory analysis, with earlier onset of drug use across the addiction subgroups, potentially serving as a predisposing marker amenable for early intervention. Importantly, these findings contextualize a plausible PFC-Hb circuit in the human brain, supporting preclinical evidence for its impairment in cocaine addiction. Competing Interests: Declaration of interests The authors declare no competing interests. (Copyright © 2022 Elsevier Inc. All rights reserved.)
Databáze:	MEDLINE
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