Ovidiu Tatar, Hamzah Bakouni, Amal Abdel-Baki, Didier Jutras-Aswad
{"title":"Technology-Based Psychotherapeutic Interventions for Decreasing Cannabis Use in People with Psychosis: A Systematic Review Update.","authors":"Ovidiu Tatar, Hamzah Bakouni, Amal Abdel-Baki, Didier Jutras-Aswad","doi":"10.1089/can.2024.0094","DOIUrl":"10.1089/can.2024.0094","url":null,"abstract":"<p><p>Cannabis use is highly prevalent in people with psychotic disorders and is associated with adverse outcomes. We updated our 2020 systematic review related to the efficacy of technology-based psychological interventions (TBPIs) to decrease cannabis use in individuals with psychosis, the design of TBPIs, and their acceptability. We searched Medline, PubMed, Embase, CINAHL, PsycINFO, and EMB Reviews for references indexed between November 27, 2019, and July 27, 2023, and used the PRISMA guidelines to report the results. We screened 5083 unique records and retained three studies for the narrative synthesis. Two quantitative studies showed promising results of internet or virtual reality-based psychological interventions that incorporate cognitive behavioral therapy, motivational interviewing, and psychoeducation principles on the frequency and quantity of cannabis use. A qualitative exploratory study provided an integrative synthesis of patient and clinician opinions pertaining to the use of psychological approaches and technology to tackle cannabis misuse in individuals with psychosis. In contradiction with the rapidly expanding mobile-health solutions in the field of mental health, there is a dearth of research related to the use of internet and app-based psychological interventions for cannabis use in individuals with psychosis. The use of qualitative research is pivotal in the development of TBPIs. Our initial review and its update show that only 11 peer-reviewed journal articles that met our inclusion criteria have been published so far.</p>","PeriodicalId":9386,"journal":{"name":"Cannabis and Cannabinoid Research","volume":" ","pages":"11-17"},"PeriodicalIF":3.1,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142495626","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"<i>Letter to the Editor:</i> Snoop Dogg's Announcement to \"Give Up Smoke\" Has Fans Reevaluating Their Own Patterns of Cannabis Use.","authors":"Kelly C Young-Wolff, Esti Iturralde","doi":"10.1089/can.2024.0003","DOIUrl":"10.1089/can.2024.0003","url":null,"abstract":"","PeriodicalId":9386,"journal":{"name":"Cannabis and Cannabinoid Research","volume":" ","pages":"e184-e186"},"PeriodicalIF":3.1,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140854300","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Tania Yadira Martínez-Rodríguez, Elia H Valdés-Miramontes, José Francisco Muñoz-Valle, Zyanya Reyes-Castillo
{"title":"Genetic Evidence of Endocannabinoid System on Perceived Stress and Restricted Food Intake: The Role of Variants rs324420 in <i>FAAH</i> Gene and rs1049353 in <i>CNR1</i> Gene.","authors":"Tania Yadira Martínez-Rodríguez, Elia H Valdés-Miramontes, José Francisco Muñoz-Valle, Zyanya Reyes-Castillo","doi":"10.1089/can.2024.0077","DOIUrl":"10.1089/can.2024.0077","url":null,"abstract":"<p><p><b>Background:</b> The endocannabinoid system (ECS) is active in brain regions involved in stress, food intake, and emotional regulation. The CB1 receptor and the fatty acid amide hydrolase (FAAH) enzyme regulate the ECS. Genetic variants in the <i>FAAH</i> gene (rs324420) and in the <i>CNR1</i> gene (rs1049353) have been involved in both chronic stress and obesity. As a maladaptive strategy to evade the stress, three dysfunctional eating patterns may appear: cognitive restriction, disinhibition, and emotional eating. <b>Aim:</b> To evaluate the association of variants rs324420 in the <i>FAAH</i> gene and rs1049353 in the <i>CNR1</i> gene with perceived stress, dysfunctional eating patterns, and anthropometric and body composition variables. <b>Methods:</b> This cross-sectional study included 189 participants from western Mexico. The Spanish version of the Three-Factor Eating Questionnaire and the Perceived Stress Scale were applied. Genotyping was performed with TaqMan<sup>®</sup> probes. <b>Results:</b> It was found that subjects with CA/AA genotypes in <i>FAAH</i> had a higher risk of presenting high scores in stress perception than CC genotype carriers (odds ratio [OR] 1.85, 95% confidence interval [CI] 1.007-3.339; <i>p</i> = 0.048); in addition, the CC genotype of this genetic variant was related to higher body weight and body fat, but no association was found with dysfunctional eating patterns. As for the <i>CNR1</i> single-nucleotide polymorphism, this variant showed no significant association with stress perception scores, but subjects with GA/AA genotypes in <i>CNR1</i> had a lower risk of presenting high scores of restriction in food intake compared with GG genotype carriers (OR 0.11, 95% CI 0.046-0.322; <i>p</i> < 0.001). Therefore, this study suggests a differential role of the ECS genes <i>FAAH</i> and <i>CNR1</i> in perceived stress and dysfunctional eating patterns, respectively. Further studies in other populations are required.</p>","PeriodicalId":9386,"journal":{"name":"Cannabis and Cannabinoid Research","volume":" ","pages":"e112-e120"},"PeriodicalIF":3.1,"publicationDate":"2025-02-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141537636","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Chukwuemeka N Okafor, Anoma Somasunderam, Jordan E Lake, Jonathan Gelfond, Marjan Javanbakht, Pamina Gorbach, Steven Shoptaw, Joy Schmitz
{"title":"Cannabis Use and Biomarkers of Inflammation, Immune Activation, and Microbial Translocation in Persons with HIV.","authors":"Chukwuemeka N Okafor, Anoma Somasunderam, Jordan E Lake, Jonathan Gelfond, Marjan Javanbakht, Pamina Gorbach, Steven Shoptaw, Joy Schmitz","doi":"10.1089/can.2023.0109","DOIUrl":"10.1089/can.2023.0109","url":null,"abstract":"<p><p><b>Background:</b> The relationship between cannabis and inflammation among persons with HIV (PWH) remains unclear. We examined whether the cannabis metabolite 11-nor-9-carboxy THC (THC-COOH) is associated with lower levels of plasma biomarkers of inflammation, immune activation, and microbial translocation in PWH. We hypothesized that cannabis use would be associated with lower levels of plasma inflammatory biomarkers than noncannabis use. <b>Methods:</b> We quantified THC-COOH in plasma, with THC-COOH levels between 5.1-69.9 μg/L and ≥70 μg/L being classified as moderate and heavy cannabis use, respectively, with noncannabis use defined as undetected THC-COOH. We measured a panel of plasma biomarkers of inflammation (interleukin [IL]-1-<i>β</i>, tumor necrosis factor-alpha, IL-18, IL-6, and C-reactive protein), immune activation (CD14 and CD163), and microbial translocation (iFABP2 and lipopolysaccharide binding protein [LBP]), with all biomarkers collected on the same day. We used a cross-sectional design and linear regression models to test whether cannabis use is associated with lower biomarker levels. <b>Results:</b> Participants were (<i>N</i>=107) sexual minority men with HIV (median age=32 years, IQR=28, 38), of whom 65% were virally suppressed; 36%, 44%, and 20% were classified as nonuse, moderate, and heavy cannabis, respectively. In linear regression models adjusted for viral suppression, stimulant use, and CD4 counts, heavy cannabis use was significantly associated with lower levels of log<sub>10</sub> LBP (<i>β</i>=-0.14, 95% confidence interval: -0.24 to -0.04; false discovery rate=0.0029; partial eta squared=0.07) than noncannabis users. No precise associations were observed for other biomarkers (all <i>p</i>>0.05). <b>Conclusions:</b> Our findings suggest that cannabis use may be associated with lower plasma LBP. Further work is needed to clarify the relationship between cannabis use and biomarkers of microbial translocation in PWH.</p>","PeriodicalId":9386,"journal":{"name":"Cannabis and Cannabinoid Research","volume":" ","pages":"e1579-e1587"},"PeriodicalIF":3.1,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11685291/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139711550","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Identification and Optimization of more Efficient Olivetolic Acid Synthases.","authors":"Yue Yang, Shimeng Liu, Zihe Li, Changlong Lai, Hao Wu, Zhenzhu Li, Wenhao Xia, Qiuhui Du, Lihui Huang, Wen Wang, Xiao Wang, Xianqing Chen","doi":"10.1089/can.2023.0226","DOIUrl":"10.1089/can.2023.0226","url":null,"abstract":"<p><p><b>Introduction:</b> Olivetolic acid (OLA) is a key intermediate in cannabidiol (CBD) synthesis, and cannabinoids are important neuroactive drugs. However, the catalytic activity of olivetolic acid synthase (OLS), the key enzyme involved in OLA biosynthesis, remains low and its catalytic mechanism is unclear. <b>Materials and Methods:</b> In this study, we conducted a scrupulous screening of the pivotal rate-limiting enzyme and analyzed its amino acid sites that are critical to enzyme activity as validated by experiments. <b>Results:</b> Through stringent enzyme screening, we pinpointed a highly active OLS sequence, OLS4. Then, we narrowed down three critical amino acid sites (I258, D198, E196) that significantly influence the OLS activity. <b>Conclusions:</b> Our findings laid the groundwork for the efficient biosynthesis of OLA, and thereby facilitate the biosynthesis of CBD.</p>","PeriodicalId":9386,"journal":{"name":"Cannabis and Cannabinoid Research","volume":" ","pages":"1482-1491"},"PeriodicalIF":3.1,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11685297/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"139490860","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Alexa Torrens, Alex Mabou Tagne, Adren Tran, Faizy Ahmed, Marilyn A Huestis, Daniele Piomelli
{"title":"Comparative Pharmacokinetics of Δ9-Tetrahydrocannabinol in Adolescent and Adult Female Mice.","authors":"Alexa Torrens, Alex Mabou Tagne, Adren Tran, Faizy Ahmed, Marilyn A Huestis, Daniele Piomelli","doi":"10.1089/can.2024.0076","DOIUrl":"10.1089/can.2024.0076","url":null,"abstract":"<p><p><b>Introduction:</b> Animal studies suggest that adolescent exposure to Δ<sup>9</sup>-tetrahydrocannabinol (Δ<sup>9</sup>-THC), the intoxicating constituent of cannabis, causes lasting functional alterations in brain and other organs. Those studies often neglect the impact that age- and sex-dependent differences in the distribution and metabolism of the drug might exert on its pharmacological effects. Here, we provide a comparative analysis of Δ<sup>9</sup>-THC pharmacokinetics in adolescent and adult female mice, which identify significant dissimilarities in distribution and metabolism of Δ<sup>9</sup>-THC between females of these age groups. <b>Materials and Methods:</b> We administered Δ<sup>9</sup>-THC (5 mg/kg, intraperitoneal) to adolescent (37-day old) and young adult (70-day old) female mice and quantified Δ<sup>9</sup>-THC and its first-pass metabolites-11-hydroxy-Δ<sup>9</sup>-THC (11-OH-THC) and 11-nor-9-carboxy-Δ<sup>9</sup>-THC (11-COOH-THC)-in plasma and brain tissue using liquid chromatography/tandem mass spectrometry. <b>Results:</b> Maximal plasma concentrations of Δ<sup>9</sup>-THC were 8 times higher in adolescent than adult female mice. Conversely, brain concentrations and brain-to-plasma ratios were 25-50% higher in adults than adolescents. Concentrations of Δ<sup>9</sup>-THC metabolites were higher in plasma but lower in brain of adolescent compared to adult female mice. <b>Conclusions:</b> The results identify multiple age-dependent differences in the pharmacokinetic properties of Δ<sup>9</sup>-THC in female mice, which might influence the pharmacological response to the drug.</p>","PeriodicalId":9386,"journal":{"name":"Cannabis and Cannabinoid Research","volume":" ","pages":"1537-1542"},"PeriodicalIF":3.1,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11685284/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"142003686","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Re: \"Regular Use of Cannabis in Female Athletes Is Associated with a Reduction in Early Anaerobic Power Production\" by Lisano <i>et al.</i>","authors":"Aderbal S Aguiar","doi":"10.1089/can.2023.0157","DOIUrl":"10.1089/can.2023.0157","url":null,"abstract":"","PeriodicalId":9386,"journal":{"name":"Cannabis and Cannabinoid Research","volume":" ","pages":"e1623-e1624"},"PeriodicalIF":3.1,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11685282/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10072779","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Cara A Struble, Jacob T Borodovsky, Mohammad I Habib, Deborah S Hasin, Dvora Shmulewitz, Ofir Livne, Claire Walsh, Efrat Aharonovich, Alan J Budney
{"title":"Extending Gender- and Sex-Based Analyses in Cannabis Research: Findings from an Online Sample of Gender Diverse Young Adult Consumers.","authors":"Cara A Struble, Jacob T Borodovsky, Mohammad I Habib, Deborah S Hasin, Dvora Shmulewitz, Ofir Livne, Claire Walsh, Efrat Aharonovich, Alan J Budney","doi":"10.1089/can.2023.0069","DOIUrl":"10.1089/can.2023.0069","url":null,"abstract":"<p><p><b>Background:</b> Gender and sex can influence cannabis behaviors and consequences (Cannabis Use Disorder [CUD]). Research typically examines sex and gender independently. Gender analyses often exclude transgender and gender diverse (TGD) populations. The objectives of this study were to (a) replicate less frequent cannabis use among TGD young adults compared to cisgender counterparts (b) compare severity of CUD, and (c) examine the role of sex on cannabis outcomes. <b>Method:</b> Online survey participants between 18 and 34 (<i>N</i>=1213) from the United States who reported past-week cannabis consumption provided information on cannabis practices and CUD from February to April 2022. Bivariate analyses explored gender differences across frequency (daily frequency across routes of administration [ROAs]; daily use of 2+ ROAs, use throughout the day) and CUD. Adjusted regression models provided model-estimated marginal probabilities and means to examine differences across four gender-by-sex categories (cisgender men: <i>n</i>=385; cisgender women: <i>n</i>=681; male-at-birth TGD: <i>n</i>=26; female-at-birth TGD: <i>n</i>=121). Benjamini-Hochberg adjustments (10% false discovery rate) were applied. <b>Results:</b> Among past-week consumers, female-at-birth TGD participants demonstrated lower probability of daily flower smoking compared to cisgender men (0.54 vs. 0.67). Cisgender men reported greater probability of daily concentrate vaping (0.55) compared to cisgender women (0.45) and female-at-birth TGD participants (0.27); they were also more likely to report daily use of 2+ ROAs (cisgender men: 0.51 vs. cisgender women: 0.39 and female at-birth TGD: 0.27). TGD participants reported greater CUD severity compared to cisgender counterparts, <i>t</i>(1096)=-3.69, <i>p</i>=0.002. Model-estimated means found lower severity among cisgender women compared to cisgender men and female-at-birth TGD participants. Stratified regression models support positive associations between daily cannabis use and CUD in both TGD in cisgender groups. Among cisgender participants, greater severity was predicted by male sex, younger age, and younger age of onset. <b>Conclusions:</b> The present study replicates and extends a prior finding that among past-week cannabis consumers, TGD young adults report less frequent use than cisgender counterparts. Despite this, TGD participants demonstrated greater severity of CUD. While analyses were limited by the small sample of male-at-birth TGD participants, the article highlights the importance of expanding sex- and gender-focused analyses. Future work is expanding efforts to target hard-to-reach consumers.</p>","PeriodicalId":9386,"journal":{"name":"Cannabis and Cannabinoid Research","volume":" ","pages":"e1604-e1614"},"PeriodicalIF":3.1,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11685296/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10022165","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
{"title":"Perception of Risk of Harm from Cannabis Use Among Women of Reproductive Age with Disabilities.","authors":"Panagiota Kitsantas, Salman M Aljoudi, Lea Sacca","doi":"10.1089/can.2023.0199","DOIUrl":"10.1089/can.2023.0199","url":null,"abstract":"<p><p><b>Objectives:</b> To examine perceived risk of harm from weekly cannabis use among reproductive-aged women with disabilities. <b>Methods:</b> Using data from the 2021 National Survey on Drug Use and Health, we assessed perceived risk of harm associated with weekly cannabis use among women of reproductive age by disability status. Disabilities included sensory, cognitive, and those related to daily activities. Logistic regression was employed to examine correlates of risk perception associated with weekly cannabis in this subpopulation of women. <b>Results:</b> A significantly higher percentage of women with any disability perceived no risk associated with weekly cannabis use (37.9%) compared to those with no disabilities (26.1%). Approximately, 60.0% of women with disabilities who used cannabis in the past 12 months perceived no risk of harm from weekly cannabis use. Overall, women with disabilities and cannabis use in the past 12 months had higher adjusted odds (AOR=2.90, 95% CI=2.10-4.10) of perceiving no risk associated with weekly use of cannabis compared to women without any disability and no cannabis use. Other significant factors associated with an increased likelihood of perceiving no risk of harm from weekly use of cannabis included younger women, having higher income, being in good health, and using alcohol or tobacco. <b>Conclusions:</b> Perceived risk of harm associated with weekly cannabis use is particularly low among women with disabilities who use cannabis. Given current attitudes toward cannabis as a harmless drug, and the potential adverse health outcomes, it is imperative to monitor and understand women's perceptions of risk of harm from cannabis use for clinical guidance, provider and patient education, and public health programs to support evidence-based approaches in addressing its use among vulnerable populations such as those of reproductive age with disabilities.</p>","PeriodicalId":9386,"journal":{"name":"Cannabis and Cannabinoid Research","volume":" ","pages":"e1615-e1622"},"PeriodicalIF":3.1,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11685286/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140038731","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
Valentina Lorenzetti, Alexandra Gaillard, Eugene McTavish, Sally Grace, Maria Gloria Rossetti, Albert Batalla, Marcella Bellani, Paolo Brambilla, Yann Chye, Patricia Conrod, Janna Cousijn, Izelle Labuschagne, Adam Clemente, Scott Mackey, Peter Rendell, Nadia Solowij, Chao Suo, Chiang-Shan R Li, Gill Terrett, Paul M Thompson, Murat Yücel, Hugh Garavan, Carl A Roberts
{"title":"Cannabis Dependence is Associated with Reduced Hippocampal Subregion Volumes Independently of Sex: Findings from an ENIGMA Addiction Working Group Multi-Country Study.","authors":"Valentina Lorenzetti, Alexandra Gaillard, Eugene McTavish, Sally Grace, Maria Gloria Rossetti, Albert Batalla, Marcella Bellani, Paolo Brambilla, Yann Chye, Patricia Conrod, Janna Cousijn, Izelle Labuschagne, Adam Clemente, Scott Mackey, Peter Rendell, Nadia Solowij, Chao Suo, Chiang-Shan R Li, Gill Terrett, Paul M Thompson, Murat Yücel, Hugh Garavan, Carl A Roberts","doi":"10.1089/can.2023.0204","DOIUrl":"10.1089/can.2023.0204","url":null,"abstract":"<p><p><b>Background:</b> Males and females who consume cannabis can experience different mental health and cognitive problems. Neuroscientific theories of addiction postulate that dependence is underscored by neuroadaptations, but do not account for the contribution of distinct sexes. Further, there is little evidence for sex differences in the neurobiology of cannabis dependence as most neuroimaging studies have been conducted in largely male samples in which cannabis dependence, as opposed to use, is often not ascertained. <b>Methods:</b> We examined subregional hippocampus and amygdala volumetry in a sample of 206 people recruited from the ENIGMA Addiction Working Group. They included 59 people with cannabis dependence (17 females), 49 cannabis users without cannabis dependence (20 females), and 98 controls (33 females). <b>Results:</b> We found no group-by-sex effect on subregional volumetry. The left hippocampal cornu ammonis subfield 1 (CA1) volumes were lower in dependent cannabis users compared with non-dependent cannabis users (<i>p</i><0.001, <i>d</i>=0.32) and with controls (<i>p</i>=0.022, <i>d</i>=0.18). Further, the left cornu ammonis subfield 3 (CA3) and left dentate gyrus volumes were lower in dependent versus non-dependent cannabis users but not versus controls (<i>p</i>=0.002, <i>d</i>=0.37, and <i>p</i>=0.002, <i>d</i>=0.31, respectively). All models controlled for age, intelligence quotient (IQ), alcohol and tobacco use, and intracranial volume. Amygdala volumetry was not affected by group or group-by-sex, but was smaller in females than males. <b>Conclusions:</b> Our findings suggest that the relationship between cannabis dependence and subregional volumetry was not moderated by sex. Specifically, dependent (rather than non-dependent) cannabis use may be associated with alterations in selected hippocampus subfields high in cannabinoid type 1 (CB1) receptors and implicated in addictive behavior. As these data are cross-sectional, it is plausible that differences predate cannabis dependence onset and contribute to the initiation of cannabis dependence. Longitudinal neuroimaging work is required to examine the time-course of the onset of subregional hippocampal alterations in cannabis dependence, and their progression as cannabis dependence exacerbates or recovers over time.</p>","PeriodicalId":9386,"journal":{"name":"Cannabis and Cannabinoid Research","volume":" ","pages":"e1565-e1578"},"PeriodicalIF":3.1,"publicationDate":"2024-12-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11685300/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"140142779","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"医学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}