OSCR

cART Exacerbates Cocaine-Induced Cortical Neuron Hyperactivity in Non-Transgenic but Not HIV-1 Transgenic Rats.

Overview

Authors: Tabita Kreko-Pierce1, Lihua Chen1, Guojie Qu1, Stefanie L Cassoday1, Lena Al-Harthi1, Xiu-Ti Hu1
ORCID iDs: Xiu-Ti Hu
  1. Department of Microbial Pathogens & Immunity, RUSH University Medical Center, Chicago, IL 60612, USA; (T.K.-P.); (L.C.); (S.L.C.); (L.A.-H.)
Institutions: Rush University Medical Center (United States)
Journal: Membranes, volume 16, issue 4, article 115
Dates: received 7 February 2026; accepted 24 March 2026; published online 27 March 2026
Type: Research article · Language: English
License: CC BY
Identifiers: DOI 10.3390/membranes16040115 · PMID 42042974 · PMCID PMC13117784 · OpenAlex W7141225940
Open access: gold, a free copy (OpenAlex)
Status: empty repository (how the code is found and verified)
Categories: rat (organism), other condition (population)
Methods: Statistics
Keywords: neuroHIV, medial prefrontal cortex, cocaine, combination antiretroviral therapy, neuronal excitability, electrophysiology
Topic: HIV Research and Treatment (Virology, Immunology and Microbiology), according to OpenAlex
Funding: NIH HHS (MH122241, R01 DA044552-03S1, R01 DA044552, DA033966, R01 DA057197, NS060632); NIDA NIH HHS (R01 DA057197, R01 DA044552)
Citations: not cited yet (Europe PMC); 36 references in the paper

Abstract

HIV-associated neurocognitive disorders (HAND) persist despite combination antiretroviral therapy (cART) and can be exacerbated by repeated cocaine (COC) exposure. Because COC, HAND, and cART independently disrupt medial prefrontal cortex (mPFC) function, their combined neurotoxic impact is a critical clinical concern. Using patch-clamp electrophysiology in HIV-1 transgenic (Tg) and non-Tg rats, we examined mPFC pyramidal neuron activity following repeated exposure to COC and/or cART. In non-Tg rats, COC and cART independently increased neuronal firing, trending toward an additive hyperactive effect when combined. Conversely, HIV-1 Tg rat neurons exhibited plateaued excitability, with no further firing elevations induced by COC or cART. Under intense depolarizing stimuli, treated neurons displayed overactivation-induced firing declines. These findings indicate that while COC and cART additively disrupt mPFC function in non-Tg rats, excitability mechanisms appear saturated in the HIV-1 Tg model. This restricted experimental context highlights the overlapping neurobiological impacts of cART and stimulant use, providing foundational insights into the comorbidity of COC use disorder and HAND.

Reproduced under the paper's license (CC BY), from the paper cited above.

Code

No file of the authors' code could be read here: it is described below, and read at its source.

HulabRush/Coc-HIV-cART-firing-data-

License: none: the authors keep all their rights
State: the link answers, verified on 30 September 2026
Evidence: files inventoried
Commit: f2acc31a7d87012a90e5d39988dd96c1aee0ec40, 23 May 2025
Size: 2 files, 0 scripts
Software Heritage: not archived
Found in: the references
Not found: README, license file, CITATION.cff, environment file, tests, continuous integration, documentation
Availability: 1 check, the latest on 30 September 2026: the link answers
  • 30 September 2026: the link answers

The paper's code and data availability statement is in the Data section.

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Data

No dataset and no data link were found in the paper.

Data Availability Statement

The data and statistical analysis supporting the findings of this study are publicly available in the GitHub repository at https://github.com/HulabRush/Coc-HIV-cART-firing-data-.git (accessed on 6 February 2026) [36].

Reproduced under the paper's license (CC BY), from the paper cited above.

Versions

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Version 1, 30 September 2026: the first record

Recorded: type, language, journal, volume, issue, pages, dates, 6 authors, 6 keywords, 2 funders, 35 references.

Cite

This paper

Kreko-Pierce, T., Chen, L., Qu, G., Cassoday, S. L., Al-Harthi, L., & Hu, X.-T. (2026). cART Exacerbates Cocaine-Induced Cortical Neuron Hyperactivity in Non-Transgenic but Not HIV-1 Transgenic Rats. Membranes, 16(4), 115. https://doi.org/10.3390/membranes16040115

BibTeX

@article{krekopierce2026cart,
author = {Kreko-Pierce, Tabita and Chen, Lihua and Qu, Guojie and Cassoday, Stefanie L and Al-Harthi, Lena and Hu, Xiu-Ti},
title = {{cART Exacerbates Cocaine-Induced Cortical Neuron Hyperactivity in Non-Transgenic but Not HIV-1 Transgenic Rats}},
journal = {Membranes},
year = {2026},
month = mar,
volume = {16},
number = {4},
pages = {115},
publisher = {Multidisciplinary Digital Publishing Institute (MDPI)},
issn = {2077-0375},
doi = {10.3390/membranes16040115},
url = {https://doi.org/10.3390/membranes16040115},
pmid = {42042974},
pmcid = {PMC13117784}
}

RIS

TY - JOUR
AU - Kreko-Pierce, Tabita
AU - Chen, Lihua
AU - Qu, Guojie
AU - Cassoday, Stefanie L
AU - Al-Harthi, Lena
AU - Hu, Xiu-Ti
TI - cART Exacerbates Cocaine-Induced Cortical Neuron Hyperactivity in Non-Transgenic but Not HIV-1 Transgenic Rats
T2 - Membranes
J2 - Membranes (Basel)
PY - 2026
DA - 2026/03/27
VL - 16
IS - 4
SP - 115
SN - 2077-0375
PB - Multidisciplinary Digital Publishing Institute (MDPI)
DO - 10.3390/membranes16040115
UR - https://doi.org/10.3390/membranes16040115
LA - en
ER -

CSL-JSON

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