Cannabis and Cannabinoid Research最新文献

筛选
英文 中文
Sex Differences in the Pharmacokinetics of Cannabidiol and Metabolites Following Oral Administration of a Cannabidiol-Dominant Cannabis Oil in Healthy Adults. 健康成年人口服以大麻二酚为主的大麻油后大麻二酚和代谢物的药代动力学性别差异。
IF 3.1 4区 医学
Cannabis and Cannabinoid Research Pub Date : 2024-08-01 Epub Date: 2023-06-02 DOI: 10.1089/can.2022.0345
Laura MacNair, Justyna Kulpa, Melanie L Hill, Graham M L Eglit, Irina Mosesova, Marcel O Bonn-Miller, Erica N Peters
{"title":"Sex Differences in the Pharmacokinetics of Cannabidiol and Metabolites Following Oral Administration of a Cannabidiol-Dominant Cannabis Oil in Healthy Adults.","authors":"Laura MacNair, Justyna Kulpa, Melanie L Hill, Graham M L Eglit, Irina Mosesova, Marcel O Bonn-Miller, Erica N Peters","doi":"10.1089/can.2022.0345","DOIUrl":"10.1089/can.2022.0345","url":null,"abstract":"<p><p><b>Introduction:</b> Oral cannabidiol (CBD) product use is increasingly growing among women; however, there is a lack of data on sex differences in the pharmacokinetics (PKs) of CBD and its primary metabolites, 7-hydroxy-CBD (7-OH-CBD) and 7-carboxy-CBD (7-COOH-CBD), after repeated doses. <b>Materials and Methods:</b> The present study is a secondary analysis of data from a randomized, double-blind, placebo-controlled multiple-dose trial of a commercially available, CBD-dominant oral cannabis product. Healthy participants (<i>n</i>=17 males and 15 females) were randomized to receive 120 to 480 mg of CBD daily for 7 days. Dosing groups were pooled for all analyses due to sample size limitations. Analyses compared plasma PK parameters by sex, day, and sex×day. <b>Results:</b> For raw PK parameters for CBD and metabolites, there were no statistically significant effects of sex×day or sex (all <i>p</i>-values >0.05). For metabolite-to-parent ratios (MPRs) of AUC<sub>0-t</sub>, there were significant effects of the sex×day interactions for 7-OH-CBD (<i>F</i>=6.89, <i>p</i>=0.016) and 7-COOH-CBD (<i>F</i>=5.96, <i>p</i>=0.021). For 7-OH-CBD, follow-up analyses showed significant simple effects of day within females (<i>t</i>=4.13, <i>p</i><0.001), but not within males (<i>t</i>=0.34, <i>p</i>=0.73), such that 7-OH-CBD MPRs increased significantly from day 1 to 7 for females, but not for males. For 7-COOH-CBD, follow-up analyses revealed significant simple effects of day within females (<i>t</i>=8.24, <i>p</i><0.001) and males (<i>t</i>=5.20, <i>p</i><0.001), therefore 7-COOH-CBD MPRs increased significantly from day 1 to 7 in both sexes, but the increase was significantly greater among females than among males. Within dosing days, there were no statistically significant simple effects of sex on MPRs of 7-OH-CBD or 7-COOH-CBD. <b>Conclusions:</b> Females exhibited greater relative exposure to CBD metabolites in plasma over time, which may reflect sex differences in CBD metabolism or elimination. Further research assessing the safety implications of higher relative exposure to CBD metabolites over longer periods of time is warranted to mirror typical consumer use patterns.</p>","PeriodicalId":9386,"journal":{"name":"Cannabis and Cannabinoid Research","volume":" ","pages":"e1170-e1178"},"PeriodicalIF":3.1,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9568795","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}
引用次数: 0
Assessing Characteristics and Compliance of Online Delta-8 Tetrahydrocannabinol Product Sellers. 评估在线 Delta-8 Tetrahydrocannabinol 产品销售商的特征和合规性。
IF 3.1 4区 医学
Cannabis and Cannabinoid Research Pub Date : 2024-08-01 Epub Date: 2023-05-17 DOI: 10.1089/can.2022.0341
Matthew C Nali, Tiana J McMann, Vidya Purushothaman, Zhuoran Li, Raphael E Cuomo, Bryan A Liang, Tim K Mackey
{"title":"Assessing Characteristics and Compliance of Online Delta-8 Tetrahydrocannabinol Product Sellers.","authors":"Matthew C Nali, Tiana J McMann, Vidya Purushothaman, Zhuoran Li, Raphael E Cuomo, Bryan A Liang, Tim K Mackey","doi":"10.1089/can.2022.0341","DOIUrl":"10.1089/can.2022.0341","url":null,"abstract":"<p><p><b>Introduction:</b> The debate over the legal status of many cannabis- and hemp-derived products, including delta-8 tetrahydrocannabinol (THC), is in question. Although low concentrations of delta-8 THC are legal at the Federal level, many states have implemented their own regulations to both allow and restrict its use and sale. Of concern, sellers with unknown legal credentials have appeared online and are actively selling this product. <b>Materials and Methods:</b> We characterized the marketing, sale, and compliance of online delta-8 THC sellers using (1) data collected from the Twitter Application Programming Interface with delta-8 THC-related keywords; (2) unsupervised topic modeling using the Biterm Topic Model to identify clusters of tweets involved in marketing and selling; (3) inductive coding to identify marketing and selling characteristics; and (4) web forensics and simulated shopping to determine compliance with state restrictions for delta-8 THC sales. <b>Results:</b> In total, 110 unique hyperlinks associated with 7085 tweets that included marketing and selling activity for delta-8 THC were collected. From these links, we conducted simulated purchasing in January 2021 to identify compliant and noncompliant websites. Among the vendors, age verification was not found in over half of websites (59, 53.63%); 60 (54.55%) did not report a physical address; and 74 (65.45%) sold delta-8 products direct-to-consumer. Sixty-seven (90.54%) of detected vendors shipped delta-8 products to addresses in states that prohibit sales. Forty-three (64.18%) of Internet Protocol addresses were located within the United States; all others were international. <b>Conclusion:</b> Our analysis suggests that online storefronts are illegally selling and shipping cannabinoid derivatives to U.S. consumers. Further research is needed to understand downstream health and regulatory impacts from this unregulated access.</p>","PeriodicalId":9386,"journal":{"name":"Cannabis and Cannabinoid Research","volume":" ","pages":"e1132-e1141"},"PeriodicalIF":3.1,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11386993/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9907003","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}
引用次数: 0
Sex Differences in the Association Between Cumulative Use of Cannabis and Cognitive Function in Middle Age: The Coronary Artery Risk Development in Young Adults Study. 累积吸食大麻与中年认知功能之间的性别差异:青年冠状动脉风险发展研究。
IF 3.1 4区 医学
Cannabis and Cannabinoid Research Pub Date : 2024-08-01 Epub Date: 2023-08-18 DOI: 10.1089/can.2022.0343
Baptiste Pasquier, Kristine Yaffe, Deborah A Levine, Jamal S Rana, Mark J Pletcher, Kali Tal, Stephen Sidney, Reto Auer, Julian Jakob
{"title":"Sex Differences in the Association Between Cumulative Use of Cannabis and Cognitive Function in Middle Age: The Coronary Artery Risk Development in Young Adults Study.","authors":"Baptiste Pasquier, Kristine Yaffe, Deborah A Levine, Jamal S Rana, Mark J Pletcher, Kali Tal, Stephen Sidney, Reto Auer, Julian Jakob","doi":"10.1089/can.2022.0343","DOIUrl":"10.1089/can.2022.0343","url":null,"abstract":"<p><p><b>Background:</b> Cannabis use may impair cognitive function (CF) differently in men and women, due to sex-specific differences in neurobiological mechanisms and environmental risk factors. <b>Objective:</b> Assess sex differences in the association between cumulative exposure to cannabis and cognitive performance in middle age. <b>Methods:</b> We studied participants from the Coronary Artery Risk Development in Young Adults (CARDIA) Study, including Black and White men and women 18-30 years old at baseline followed over 30 years. Our cross-sectional analysis of CF scores at year 30 was stratified by sex. We computed categories of cumulative exposure in \"cannabis-years\" (1 cannabis-year=365 days of use) from self-reported use every 2 to 5 years over 30 years. At years 25 and 30, we assessed CF with the Rey Auditory Verbal Learning Test (verbal memory), the Digit Symbol Substitution Test (processing speed), and the Stroop Interference Test (executive function). At year 30, additional measures included Category and Letter Fluency Test (verbal ability) and the Montreal Cognitive Assessment (global cognition). We computed standardized scores for each cognitive test and applied multivariable adjusted linear regression models for self-reported cumulative cannabis use, excluding participants who used cannabis within 24 h. In a secondary analysis, we examined the association between changes in current cannabis use and changes in CF between years 25 and 30. <b>Results:</b> By year 30, 1,352 men and 1,793 women had measures of CF; 87% (<i>N</i>=1,171) men and 84% (<i>N</i>=1,502) women reported ever cannabis use. Men had a mean cumulative use of 2.57 cannabis-years and women 1.29 cannabis-years. Self-reported cumulative cannabis use was associated with worse verbal memory in men (e.g., -0.49 standardized units [SU] for ≥5 cannabis-years of exposure; 95% CI=-0.76 to -0.23), but not in women (SU=0.02; 95% CI=-0.26 to 0.29). Other measures of CF were not associated with cannabis. Changes in current cannabis use between years 25 and 30 were not associated with CF in men or women. <b>Conclusions:</b> Self-reported cumulative cannabis exposure was associated with worse verbal memory in men but not in women. Researchers should consider stratified analyses by sex when testing the association between cannabis and cognition.</p>","PeriodicalId":9386,"journal":{"name":"Cannabis and Cannabinoid Research","volume":" ","pages":"e1142-e1158"},"PeriodicalIF":3.1,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10022161","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}
引用次数: 0
Differences in Cannabidiol-Related Attitudes and Practice Behaviors Between U.S. Primary Care Physicians Practicing in a Single Health Care System Across States With and Without Marijuana Legalization. 在大麻合法化和未合法化的州中,在单一医疗保健系统中执业的美国初级保健医生在大麻二酚相关态度和执业行为方面的差异。
IF 3.1 4区 医学
Cannabis and Cannabinoid Research Pub Date : 2024-08-01 Epub Date: 2023-05-23 DOI: 10.1089/can.2023.0011
Pravesh Sharma, Robert P Wilfahrt, Kandace Lackore, Christopher J Hammond
{"title":"Differences in Cannabidiol-Related Attitudes and Practice Behaviors Between U.S. Primary Care Physicians Practicing in a Single Health Care System Across States With and Without Marijuana Legalization.","authors":"Pravesh Sharma, Robert P Wilfahrt, Kandace Lackore, Christopher J Hammond","doi":"10.1089/can.2023.0011","DOIUrl":"10.1089/can.2023.0011","url":null,"abstract":"<p><p><b>Introduction:</b> Dramatic shifts in marijuana laws, along with federal deregulation of hemp with the 2018 Farm Bill, have resulted in increased availability and use of cannabidiol (CBD) supplements throughout the United States (US). Given the rapid increase in CBD use in the U.S. general population, in this study, we aim to characterize primary care physician (PCP) attitudes and practice behaviors and to assess whether differences in provider attitudes and behaviors vary as a function of marijuana legalization (ML) status in the state of practice. <b>Materials and Methods:</b> Data are from an online provider survey on CBD supplement-related attitudes, beliefs, and behaviors administered to 508 PCPs as part of a larger mixed methods study. Participating PCPs were recruited from the Mayo Clinic Healthcare Network and provided medical care in primary care settings across four U.S. states (Minnesota, Wisconsin, Florida, and Arizona). <b>Results:</b> The survey response rate was 45.4% (<i>n</i>=236/508). According to providers, CBD was frequently brought up in PCP settings, typically by patients. PCPs were generally hesitant to screen for or discuss CBD with their patients and identified multiple barriers to open patient-provider dialogue about CBD. PCPs practicing in states that had passed ML were more receptive to patients using CBD supplements, whereas PCPs practicing in states that had not passed ML were more concerned about CBD-related side effects. Regardless of state ML status, most PCPs did not feel that they should be recommending CBD supplements to their patients. Most PCPs reported believing that CBD was unhelpful for most conditions for which it is marketed, with chronic non-cancer pain and anxiety/stress being exceptions. PCP respondents generally felt that they had insufficient knowledge/training around CBD. <b>Conclusions:</b> Results from this mixed methods study show that PCPs practicing in the U.S. rarely screen for or discuss CBD use with their patients and report several barriers to engage in proactive CBD-focused practice behaviors. Furthermore, survey results show that some PCP attitudes, practice behaviors, and barriers vary as a function of state ML status. These findings may guide medical education efforts and inform primary care practice modifications aimed at enhancing screening and monitoring of patient CBD use by PCPs.</p>","PeriodicalId":9386,"journal":{"name":"Cannabis and Cannabinoid Research","volume":" ","pages":"1038-1047"},"PeriodicalIF":3.1,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9512272","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}
引用次数: 0
Response to Letter to the Editor on the Cannabis Regulators Association. 对关于大麻监管者协会的致编辑信的回复。
IF 3.1 4区 医学
Cannabis and Cannabinoid Research Pub Date : 2024-08-01 DOI: 10.1089/can.2024.0143
Gillian Schauer
{"title":"Response to Letter to the Editor on the Cannabis Regulators Association.","authors":"Gillian Schauer","doi":"10.1089/can.2024.0143","DOIUrl":"https://doi.org/10.1089/can.2024.0143","url":null,"abstract":"","PeriodicalId":9386,"journal":{"name":"Cannabis and Cannabinoid Research","volume":"9 4","pages":"e1199-e1200"},"PeriodicalIF":3.1,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141992258","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}
引用次数: 0
Cannabinoids as Potential Cancer Therapeutics: The Concentration Conundrum. 大麻素作为潜在的癌症治疗药物:浓度难题。
IF 3.1 4区 医学
Cannabis and Cannabinoid Research Pub Date : 2024-08-01 Epub Date: 2023-03-21 DOI: 10.1089/can.2022.0344
Nurgul Carkaci-Salli, Wesley M Raup-Konsavage, Deepkamal Karelia, Dongxiao Sun, Cheng Jiang, Junxuan Lu, Kent E Vrana
{"title":"Cannabinoids as Potential Cancer Therapeutics: The Concentration Conundrum.","authors":"Nurgul Carkaci-Salli, Wesley M Raup-Konsavage, Deepkamal Karelia, Dongxiao Sun, Cheng Jiang, Junxuan Lu, Kent E Vrana","doi":"10.1089/can.2022.0344","DOIUrl":"10.1089/can.2022.0344","url":null,"abstract":"<p><p><b>Background:</b> Studies have reported that cannabinoids, in particular Δ<sup>9</sup>-tetrahydrocannabinol (Δ<sup>9</sup>-THC) and cannabidiol (CBD), significantly reduce cancer cell viability <i>in vitro</i>. Unfortunately, treatment conditions vary significantly across reports. In particular, a majority of reports utilize conditions with reduced serum concentrations (0-3%) that may compromise the growth of the cells themselves, as well as the observed results. <b>Objectives:</b> This study was designed to test the hypothesis that, based on their known protein binding characteristics, cannabinoids would be less effective in the presence of fetal bovine serum (FBS). Moreover, we wished to determine if the treatments served to be cytotoxic or cytostatic under these conditions. <b>Methods:</b> Six cancer cell lines, representing two independent lines of three different types of cancer (glioblastoma, melanoma, and colorectal cancer [CRC]), were treated with 10 μM pure Δ<sup>9</sup>-THC, CBD, KM-233, and HU-331 for 48 h (in the presence or absence of FBS). Cell viability was measured with the MTT assay. Dose-response curves were then generated comparing the potencies of the four cannabinoids under the same conditions. <b>Results:</b> We found that serum-free medium alone produces cell cycle arrest for CRC cells and slows cell growth for the other cancer types. The antineoplastic effects of three of the four cannabinoids (Δ<sup>9</sup>-THC, CBD, and KM-233) increase when serum is omitted from the media. In addition, dose-response curves for these drugs demonstrated lower IC<sub>50</sub> values for serum-free media compared with the media with 10% serum in all cell lines. The fourth compound, HU-331, was equally effective under both conditions. A further confound we observed is that omission of serum produces dramatic binding of Δ<sup>9</sup>-THC and CBD to plastic. <b>Conclusions:</b> Treatment of cancer cells in the absence of FBS appears to enhance the potency of cannabinoids. However, omission of FBS itself compromises cell growth and represents a less physiological condition. Given the knowledge that cannabinoids are 90-95% protein bound and have well-known affinities for plastic, it may be ill-advised to treat cells under conditions where the cells are not growing optimally and where known concentrations cannot be assumed (i.e., FBS-free conditions).</p>","PeriodicalId":9386,"journal":{"name":"Cannabis and Cannabinoid Research","volume":" ","pages":"e1159-e1169"},"PeriodicalIF":3.1,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9210525","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}
引用次数: 0
Physicians' Attitudes and Practices Regarding Cannabis and Recommending Medical Cannabis Use. 医生对大麻和推荐使用医用大麻的态度和做法。
IF 3.1 4区 医学
Cannabis and Cannabinoid Research Pub Date : 2024-08-01 Epub Date: 2023-04-25 DOI: 10.1089/can.2022.0324
Daniel J Kruger, Joseph Gerlach, Jessica S Kruger, Majd A Mokbel, Daniel J Clauw, Kevin F Boehnke
{"title":"Physicians' Attitudes and Practices Regarding Cannabis and Recommending Medical Cannabis Use.","authors":"Daniel J Kruger, Joseph Gerlach, Jessica S Kruger, Majd A Mokbel, Daniel J Clauw, Kevin F Boehnke","doi":"10.1089/can.2022.0324","DOIUrl":"10.1089/can.2022.0324","url":null,"abstract":"<p><p><b>Introduction:</b> Medical cannabis users tend not to trust or rely on health care providers regarding cannabis advice. Previous surveys of physicians have focused on favorability toward medical cannabis. The current study assesses how physicians interact with patients regarding cannabis in their day-to-day practice, and whether and how they address important topics such as use patterns and substituting cannabis for medications. We predicted that physicians would generally perceive cannabis dispensary staff and caretakers as not competent in addressing patient health needs and would not be likely to use their recommendations. <b>Methods:</b> Physicians in a university-affiliated health system completed an anonymous online survey. The survey assessed physicians' cannabis related education experiences, perceptions of their knowledge of and competence regarding medical cannabis, and the content of cannabis related discussions with patients. We also examined perceptions of the sources of influence on patients regarding cannabis and physicians' attitudes toward medical cannabis dispensary staff and medical cannabis caregivers (MCCs). <b>Results:</b> A few physicians (10%) had ever signed a medical cannabis authorization form for their patients, consistent with their perceptions of low knowledge and competence in this area. Discussions on cannabis primarily focus on risks (63%) rather than dosage (6%) and harm reduction (25%). Physicians see their influence on patients as weak compared with other information sources and have generally unfavorable attitudes toward medical cannabis dispensary staff and MCCs. <b>Conclusion:</b> Greater integration of medical cannabis knowledge is needed at all levels of medical and clinical education to address the potential harm to patients if they receive no guidance. Continued research is needed to provide a strong scientific basis for developing treatment guidelines and standardized medical education for medical cannabis use.</p>","PeriodicalId":9386,"journal":{"name":"Cannabis and Cannabinoid Research","volume":" ","pages":"e1048-e1055"},"PeriodicalIF":3.1,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11538087/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9778698","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}
引用次数: 0
Daily Cannabidiol Administration for 10 Weeks Modulates Hippocampal and Amygdalar Resting-State Functional Connectivity in Cannabis Users: A Functional Magnetic Resonance Imaging Open-Label Clinical Trial. 连续 10 周每日服用大麻二酚可调节大麻使用者的海马和杏仁静息状态功能连接:功能磁共振成像开放标签临床试验》。
IF 3.1 4区 医学
Cannabis and Cannabinoid Research Pub Date : 2024-08-01 Epub Date: 2023-07-26 DOI: 10.1089/can.2022.0336
Valentina Lorenzetti, Eugene McTavish, Samantha Broyd, Hendrika van Hell, Diny Thomson, Eleni Ganella, Akhil Raja Kottaram, Camilla Beale, Jennifer Martin, Peter Galettis, Nadia Solowij, Lisa-Marie Greenwood
{"title":"Daily Cannabidiol Administration for 10 Weeks Modulates Hippocampal and Amygdalar Resting-State Functional Connectivity in Cannabis Users: A Functional Magnetic Resonance Imaging Open-Label Clinical Trial.","authors":"Valentina Lorenzetti, Eugene McTavish, Samantha Broyd, Hendrika van Hell, Diny Thomson, Eleni Ganella, Akhil Raja Kottaram, Camilla Beale, Jennifer Martin, Peter Galettis, Nadia Solowij, Lisa-Marie Greenwood","doi":"10.1089/can.2022.0336","DOIUrl":"10.1089/can.2022.0336","url":null,"abstract":"<p><p><b>Introduction:</b> Cannabis use is associated with brain functional changes in regions implicated in prominent neuroscientific theories of addiction. Emerging evidence suggests that cannabidiol (CBD) is neuroprotective and may reverse structural brain changes associated with prolonged heavy cannabis use. In this study, we examine how an ∼10-week exposure of CBD in cannabis users affected resting-state functional connectivity in brain regions functionally altered by cannabis use. <b>Materials and Methods:</b> Eighteen people who use cannabis took part in a ∼10 weeks open-label pragmatic trial of self-administered daily 200 mg CBD in capsules. They were not required to change their cannabis exposure patterns. Participants were assessed at baseline and post-CBD exposure with structural magnetic resonance imaging (MRI) and a functional MRI resting-state task (eyes closed). Seed-based connectivity analyses were run to examine changes in the functional connectivity of <i>a priori</i> regions-the hippocampus and the amygdala. We explored if connectivity changes were associated with cannabinoid exposure (i.e., cumulative cannabis dosage over trial, and plasma CBD concentrations and Δ<sup>9</sup>-tetrahydrocannabinol (THC) plasma metabolites postexposure), and mental health (i.e., severity of anxiety, depression, and positive psychotic symptom scores), accounting for cigarette exposure in the past month, alcohol standard drinks in the past month and cumulative CBD dose during the trial. <b>Results:</b> Functional connectivity significantly decreased pre-to-post the CBD trial between the anterior hippocampus and precentral gyrus, with a strong effect size (<i>d</i>=1.73). Functional connectivity increased between the amygdala and the lingual gyrus pre-to-post the CBD trial, with a strong effect size (<i>d</i>=1.19). There were no correlations with cannabinoids or mental health symptom scores. <b>Discussion:</b> Prolonged CBD exposure may restore/reduce functional connectivity differences reported in cannabis users. These new findings warrant replication in a larger sample, using robust methodologies-double-blind and placebo-controlled-and in the most vulnerable people who use cannabis, including those with more severe forms of Cannabis Use Disorder and experiencing worse mental health outcomes (e.g., psychosis, depression).</p>","PeriodicalId":9386,"journal":{"name":"Cannabis and Cannabinoid Research","volume":" ","pages":"e1108-e1121"},"PeriodicalIF":3.1,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10034618","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}
引用次数: 0
Running High: Cannabis Users' Subjective Experience of Exercise During Legal Market Cannabis Use Versus No Use in a Naturalistic Setting. 跑得很嗨:大麻使用者在合法市场吸食大麻与不吸食大麻期间在自然环境中运动的主观体验。
IF 3.1 4区 医学
Cannabis and Cannabinoid Research Pub Date : 2024-08-01 Epub Date: 2023-07-13 DOI: 10.1089/can.2022.0338
Laurel P Gibson, Angela D Bryan
{"title":"Running High: Cannabis Users' Subjective Experience of Exercise During Legal Market Cannabis Use Versus No Use in a Naturalistic Setting.","authors":"Laurel P Gibson, Angela D Bryan","doi":"10.1089/can.2022.0338","DOIUrl":"10.1089/can.2022.0338","url":null,"abstract":"<p><p><b>Background:</b> The use of cannabis with various forms of exercise (e.g., running) has received increased media attention in recent years, contradicting the popular stereotype that cannabis is associated with sedentary behavior. Although cross-sectional evidence suggests a positive association between cannabis use and exercise engagement, to date, the <i>acute</i> effects of cannabis on exercise remain unclear. <b>Methods:</b> The present within-subjects crossover study compared participants' experiences of running after <i>ad libitum</i> use of legal market cannabis (cannabis run) to running without cannabis (non-cannabis run) in a real-world setting. Participants (<i>n</i>=49) were cannabis users between the ages of 21 and 49 years (mean=30.82, standard deviation [SD]=6.21). The majority of participants were male (61.5%) and non-Hispanic White (81.6%). <b>Results:</b> Participants (<i>n</i>=49) ran an average of 3.88 miles (SD=2.28) during their cannabis and non-cannabis runs. Although participants ran an average of 31 seconds/mile slower during their cannabis run, this difference was not statistically significant (<i>p</i>=0.12). Participants reported experiencing (1) less negative affect (<i>p</i>=0.03), (2) greater feelings of positive affect (<i>p</i><0.001), tranquility (<i>p</i>=0.004), enjoyment (<i>p</i>=0.004), and dissociation (<i>p</i>=0.001), and (3) more runner's high symptoms (<i>p</i><0.001) during their cannabis (vs. non-cannabis) runs. Participants also reported lower pain levels after their cannabis (vs. non-cannabis) run (<i>p</i>=0.03). Perceived exertion did not differ between runs (<i>p</i>=0.33). Cannabis form, cannabinoid content, and feelings of \"high\" were largely unrelated to participants' experience of exercise while under the influence of cannabis. <b>Conclusions:</b> Results suggest that acute cannabis use may be associated with a more positive exercise experience among regular cannabis users. Research using varied methodologies, a range of exercise modalities, and diverse populations is needed to establish the long-term harms and benefits associated with this behavior, as well as the generalizability of these findings to other populations and settings.</p>","PeriodicalId":9386,"journal":{"name":"Cannabis and Cannabinoid Research","volume":" ","pages":"e1122-e1131"},"PeriodicalIF":3.1,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"9770762","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}
引用次数: 0
Cannabidiol Add-On in Glycosylphosphatidylinositol-Related Drug-Resistant Epilepsy. 添加大麻二酚治疗糖基磷脂酰肌醇相关药物耐药性癫痫。
IF 3.1 4区 医学
Cannabis and Cannabinoid Research Pub Date : 2024-08-01 Epub Date: 2023-03-01 DOI: 10.1089/can.2022.0255
Antonella Riva, Gianluca D'Onofrio, Angelica Pisati, Roberta Roberti, Elisabetta Amadori, Friedrich Bosch, Carolina Fischinger Moura de Souza, Ashley Thomas, Emilio Russo, Pasquale Striano, Allan Bayat
{"title":"Cannabidiol Add-On in Glycosylphosphatidylinositol-Related Drug-Resistant Epilepsy.","authors":"Antonella Riva, Gianluca D'Onofrio, Angelica Pisati, Roberta Roberti, Elisabetta Amadori, Friedrich Bosch, Carolina Fischinger Moura de Souza, Ashley Thomas, Emilio Russo, Pasquale Striano, Allan Bayat","doi":"10.1089/can.2022.0255","DOIUrl":"10.1089/can.2022.0255","url":null,"abstract":"<p><p><b>Background:</b> Glycosylphosphatidylinositol-anchored protein deficiencies (GPI-ADs) are commonly associated with drug-resistant epilepsy (DRE). Cannabidiol (CBD) is approved for the adjunctive treatment of seizures in Dravet/Lennox-Gastaut Syndromes and Tuberous Sclerosis Complex. We report on the efficacy and safety of CBD for the treatment of DRE in patients with genetically proven GPI-AD. <b>Patients and Methods:</b> Patients received add-on treatment with purified GW-pharma CBD (Epidyolex<sup>®</sup>). Efficacy endpoints were the percentage of patients with ≥50% (responders) or >25<50% (partial responders) reduction in monthly seizures from baseline and at 12 (M12) months of follow-up. Safety was evaluated through adverse events (AEs) monitoring. <b>Results:</b> Six patients (5 males) were enrolled. The median age at seizures onset was 5 months and the syndromic diagnosis was early infantile developmental and epileptic encephalopathy in 4 patients and focal non-lesional epilepsy or GEFS+ in one patient each. Five out of six (83%) patients were responders at M12, while one was a partial responder. No severe AEs were reported. Mean prescribed CBD dose was 17.85 mg/kg/day and median treatment duration is currently 27 months. <b>Conclusions:</b> In summary, off-label treatment with CBD was effective and safe in patients with DRE due to GPI-ADs.</p>","PeriodicalId":9386,"journal":{"name":"Cannabis and Cannabinoid Research","volume":" ","pages":"990-995"},"PeriodicalIF":3.1,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"10805757","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}
引用次数: 0
0
×
引用
GB/T 7714-2015
复制
MLA
复制
APA
复制
导出至
BibTeX EndNote RefMan NoteFirst NoteExpress
×
提示
您的信息不完整,为了账户安全,请先补充。
现在去补充
×
提示
您因"违规操作"
具体请查看互助需知
我知道了
×
提示
确定
请完成安全验证×
相关产品
×
本文献相关产品
联系我们:info@booksci.cn Book学术提供免费学术资源搜索服务,方便国内外学者检索中英文文献。致力于提供最便捷和优质的服务体验。 Copyright © 2023 布克学术 All rights reserved.
京ICP备2023020795号-1
ghs 京公网安备 11010802042870号
Book学术文献互助
Book学术文献互助群
群 号:481959085
Book学术官方微信