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Readable research linked to original sources
Browse normalized, publication-ready research with direct links to its evidence and source.
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Readable research linked to original sources
Browse normalized, publication-ready research with direct links to its evidence and source.
74 articles
Newest firstPolysubstance use disorders ( ≥ 2 substance use disorders (SUDs)) are associated with high morbidity and mortality. We analyzed data from 92,233 adult participants in the 2022-2023 US National Surveys on Drug Use and Health to estimate past-year prevalence of polysubstance use disorders and to examine their associations with age of substance use initiation. Multivariable logistic regression and Poisson regression…
Open article record in new tab ↗Synthetic cannabinoid receptor agonists constitute a prominent class of new psychoactive substances (NPS), in which minor structural modifications can markedly influence in vivo pharmacological outcomes. In this study, methoxy-substituted derivatives of JWH-018 were synthesized to examine the effect of substitution position on behavioral activity. JWH-018-5-OMe and JWH-018-6-OMe were evaluated using four in vivo a…
Open article record in new tab ↗Opioid use disorder (OUD) remains a major public health crisis, underscoring the urgent need for safer and more effective treatments. Cannabinoid CB2 receptor (CB2R) agonists show therapeutic promise for neuropsychiatric disorders and pain, with minimal psychoactive effects by themselves, but their potential in treating OUD is not well defined. Here, we report that MRI-2594, a novel, highly selective CB2R agonist,…
Cannabis Use Disorder (CUD) affects ~ 50 million individuals globally. CUD has been associated with adverse psychosocial outcomes, including affective flattening, apathy, and anhedonia, which prominent neuroscientific theories ascribe (in part) to altered integrity in brain reward pathways. Yet, emerging evidence from functional neuroimaging (fMRI) is mixed. We examined the activity in key regions-of-interest (ROI…
Open article record in new tab ↗Depersonalization/derealization (DPDR) involves feeling detached from one's body, thoughts, or emotions and is often triggered by trauma, stress, mental health issues, or drug use, typically causing high distress. Similar experiences are also reported in meditation contexts, where they are often described as positive, insightful, and meaningful. However, no study has systematically compared DPDR-like experiences a…
Open article record in new tab ↗Both hot and cold sensations of the homotetrameric thermosensitive transient receptor potential vanilloid 1-4 (TRPV1-4) channels have been predicted by a single Gibbs-Helmholtz equation for a change in molar heat capacity. However, the heat capacity model has not been examined for TRPV3 channels involving inactivation. Given the mirrored heat and cold sensitivity in TRPV1 with a shared starter, the same case shoul…
Open article record in new tab ↗Background Autism spectrum disorder (ASD) is a multifactorial neurodevelopmental condition in which pharmacological and microbiota-targeted interventions are emerging as promising therapeutic avenues. Animal models are the main tool to investigate etiology, molecular mechanisms and screening for pharmacological therapies. Methodological differences, outcome measure variability, incomplete reporting, biological con…
Open article record in new tab ↗Given the increasing availability of high-potency Δ9-tetrahydrocannabinol (Δ9-THC) products, understanding potency-related effects of Δ9-THC on driving performance is an important public safety issue. This randomized, double-blind, placebo-controlled, within-subjects trial examined the effects of smoked cannabis with varying Δ9-THC concentrations on simulated driving. Adults aged 19–45 who regularly used cannabis…
Prescription opioid misuse is a significant public health concern among individuals with chronic pain. Treating severe pain often requires high doses of opioids, increasing the risk of developing an opioid use disorder. Cannabidiol (CBD) is a non-intoxicating component of cannabis that has shown therapeutic potential without abuse liability. This study investigated the effects of CBD on oxycodone self-administrati…
The endocannabinoid ligand anandamide (AEA) plays a role in fear extinction, the conceptual foundation of the gold standard treatment for posttraumatic stress disorder (PTSD), exposure-based psychotherapy. Converging evidence from animal models and non-clinical human studies highlights the potential to enhance fear extinction pharmacologically by inhibiting the AEA catabolic enzyme, fatty acid amide hydrolase (FAA…
Gut-brain signaling influences alcohol consumption and addiction behaviors. We found that selectively deleting cannabinoid receptor 1 (CB1R) from advillin+ peripheral sensory neurons eliminates the inhibitory effect of the peripheral CB1R antagonist JD5037 on voluntary ethanol intake (VEI). Similar results were seen in mice with CB1R deletion in Phox2b+ nodose ganglia (NGA), but not in Wnt+ dorsal root ganglia. Th…
We are reporting powerful streams of chromatin rupturing the nuclear envelope (NE) and the plasma membrane of migrating cerebral neurons in mouse embryos, which we suggest naming "piercing nuclear hernia" (PNH). About 40% of migrating neurons in cannabinoid type 1 receptor knock-out (CB1R-/-) mouse embryos and in wildtype embryos exposed to CB1R agonists show NE rupture and/or PNH. This indicates that deviations f…
Open article record in new tab ↗Early life exposure to cannabis can result in long-lasting deficits in spatial navigation. We ask if the development of this behavior is subject to early life activity of type I cannabinoid receptor (CB1R) in the vestibular nucleus. In rodents, we found that local exposure to CB1R agonist within the first postnatal week, but not thereafter, led to a decline in the induction efficacy of long-term depression at GABA…
Open article record in new tab ↗Alterations in the excitability of dorsal root ganglion (DRG) neurons are critical in the pathogenesis of acute and chronic pain. Neurotransmitter release from the terminals of DRG neurons is regulated by cannabinoid receptor 1 (CB1) and transient receptor potential vanilloid 1 (TRPV1), both activated by anandamide (AEA). In our experiments, the AEA precursor N-arachidonoylphosphatidylethanolamine (20:4-NAPE) was…
Open article record in new tab ↗Although alcohol use disorder (AUD) is highly prevalent, only a few medications are approved for its treatment leaving much room for improvement. Cannabidiol (CBD) might be a particularly promising candidate, with preclinical data suggesting that CBD is effective in targeting AUD symptoms and disease processes that drive alcohol use and relapse, due to its anti-craving, stress-reducing, and anti-compulsive effects…
Introduction Despite revolutionary advances in understanding the neurobiology of substance use, these insights have not been translated into effective prevention or intervention programs. To address this gap, we developed Neuroscience-Informed Psychoeducation for Addiction (NIPA), a mobile app designed to enhance metacognitive awareness, increase cognitive resilience, and promote neurocognitive skills for stress c…
Open article record in new tab ↗Acute intoxication from Δ9-tetrahydrocannabinol (THC, the primary active ingredient of cannabis) can lead to neurocognitive impairment and interference with day-to-day operations, such as driving. Present evaluations of THC-induced impairment in legal settings rely on biological drug tests that solely establish cannabis use, rather than cannabis impairment. The current study evaluated the metabolome in blood colle…
Open article record in new tab ↗As high-potency cannabis (with high Δ9-Tetrahydrocannabinol content) becomes easily accessible and widespread, it is of extreme importance for public health that a scientific platform is used to implement practical guidelines, particularly for at-risk populations. Many reviews have been written in the past decade summarizing the impact of cannabis in the developing brain. One critical concept frequently mentioned…
Open article record in new tab ↗Alterations to the excitation/inhibition (E/I) ratio are postulated to underlie behavioral phenotypes in autism spectrum disorder (ASD) patients and mouse models. However, in wild type mice the E/I ratio is not constant, but instead oscillates across the 24-h day. Therefore, we tested whether E/I regulation, rather than the overall E/I ratio, is disrupted in two ASD-related mouse lines: Fmr1 KO and BTBR, models of…
Open article record in new tab ↗The dietary ligands, omega-3 fatty acid endocannabinoids (eCBs) eicosapentaenoyl ethanolamide (EPEA) and docosahexaenoyl ethanolamide (DHEA), and short-chain fatty acids (SCFAs) acetate, propionate and butyrate, have anti-inflammatory and antidepressant properties. However, the molecular mechanisms underlying their action in the human brain remain elusive. Here, we treated human hippocampal neurons (HPC0A07/03 C)…