ArticleDrug and alcohol dependence2021
Effects of fentanyl on acute locomotor activity, behavioral sensitization, and contextual reward in female and male rats.
Article in Drug and alcohol dependence, 2021. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 32 papers.
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Who cites it
32 citing papers in PubMed, 48 citations in OpenAlex.
- Transcriptional Response to Chronic Long-Access Fentanyl Self-Administration in Rat Habenula and Amygdala.Addiction biology · 2026Article
- Fentanyl Induces Behavioral Sensitization and Decreases Class IIa HDAC Expression-Activity in Brain as Measured by [Brain sciences · 2026Article
- Influence of sex, anxiety, and risk-taking behavior on opioid and alcohol polysubstance consumption patterns.Addiction neuroscience · 2026Article
- Pharmacological effect of (±)-trans-3-methylfentanyl and (±)-cis-3-methylfentanyl.Psychopharmacology · 2026Article
- Xylazine potentiates the interoceptive effects of fentanyl in male and female rats.Psychopharmacology · 2026Article
- Sex-specific differences in endocannabinoid regulation of cocaine-evoked dopamine in the medial nucleus accumbens shell.bioRxiv : the preprint server for biology · 2026Article
- A repeated low-dose regimen of MDMA has transient next-day effects on locomotor activity, anxiety-like behavior, and brain serotonin levels, with no effect on anhedonia-like behavior, in both female and male rats.Psychopharmacology · 2026Article
- Fentanyl, Methamphetamine and Polysubstance Use Differentially Affect Locomotor Sensitisation and Social Behaviour in Rats: Psychedelic Treatment Reverses Social Deficits.Addiction biology · 2026Article
- An engineered nanobody inhibitor for molecular-to-circuit control of opioid receptor function.bioRxiv : the preprint server for biology · 2026Article
- The effects of fentanyl and dexmedetomidine on cardiorespiratory activity: implications for morbidity and mortality associated with adulterated fentanyl products.Frontiers in pharmacology · 2026Article
- Metabolomic analysis of plasma and brain tissues in fentanyl-induced conditioned place preference mice.Frontiers in pharmacology · 2026Article
- Transcriptional response to chronic long-access fentanyl self-administration in rat habenula and amygdala.bioRxiv : the preprint server for biology · 2025Article
- Anxiety and risk-taking behavior maps onto opioid and alcohol polysubstance consumption patterns in male and female mice.bioRxiv : the preprint server for biology · 2025Article
- Effects of Angiotensin II Receptor 1 Inhibition by LCZ696 on the Acquisition and Relapse of Methamphetamine-Associated Contextual Memory.Pharmaceuticals (Basel, Switzerland) · 2025Article
- Article
- Interactions of pain and opioids on conditioned place preference in rodents.Psychopharmacology · 2025Review
- Enhancing translation: A need to leverage complex preclinical models of addictive drugs to accelerate substance use treatment options.Pharmacology, biochemistry, and behavior · 2024Review
- Article
- Effects of novel beta-lactam, MC-100093, and ceftriaxone on astrocytic glutamate transporters and neuroinflammatory factors in nucleus accumbens of C57BL/6 mice exposed to escalated doses of morphine.Saudi pharmaceutical journal : SPJ : the official publication of the Saudi Pharmaceutical Society · 2024Article
- Article
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Authors and funding
8 authors at 1 institution in 1 country.
Funding
Abstract
backgroundAlthough fentanyl has gained widespread prominence, there remains a lack of knowledge on this opioid synthetic agonist, particularly related to sex effects. Therefore, we conducted behavioral tests in female and male rats to measure drug abuse-related responses to fentanyl hypothesizing sex-specific responses.
methodsUsing female and male rats, we measured the effects of acute or repeated administration of fentanyl (20 μg/kg) on locomotor activity (LMA) and behavioral sensitization in an open field test. We further measured contextual-reward and associated locomotor activity during training in a conditioned place preference (CPP) paradigm using a low (4 μg/kg) or high (16 μg/kg) dose of fentanyl. Vaginal lavage samples were collected from female rats in the CPP study, and the estrous phase was determined based on the cytological characterization.
resultsFemale, but not male, rats showed elevated LMA in response to acute fentanyl and behavioral sensitization to repeated administration of fentanyl. Fentanyl produced significant CPP in both sexes, but it was more potent in males. Finally, our secondary investigation of the estrous cycle on fentanyl-CPP suggests that non-estrus phases, likely reflecting high estradiol, may predict the degree of fentanyl preference in females.
conclusionsFentanyl was more potent and/or effective to produce LMA and LMA sensitization in females but more potent to produce CPP in males. Furthermore, the role of sex in fentanyl responses varied across endpoints, and sex differences in LMA were not predictive of sex differences in CPP.
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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.