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Shafiee A, Rafiei MA, Jafarabady K, Eskandari A, Abhari FS, Sattari MA, Amini MJ, Bakhtiyari M. Effect of cannabis use on blood levels of brain-derived neurotrophic factor (BDNF) and nerve growth factor (NGF): A systematic review and meta-analysis. Brain Behav 2024; 14:e3340. [PMID: 38376038 PMCID: PMC10757895 DOI: 10.1002/brb3.3340] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/08/2023] [Revised: 11/10/2023] [Accepted: 11/11/2023] [Indexed: 02/21/2024] Open
Abstract
BACKGROUND The impact of cannabis uses on blood levels of brain-derived neurotrophic factor (BDNF) and nerve growth factor (NGF) remains uncertain, with conflicting findings reported in the literature. BDNF and NGF both are essential proteins for neuron's growth, and their dysregulation is seen in various mental disorders. This study aims to evaluate the relationship between cannabis usage and BDNF and NGF levels due to their potential implications for mental health. METHODS A comprehensive search of electronic databases was performed using appropriate MeSH terms and keywords. Inclusion criteria comprised human studies investigating the relationship between cannabis use and BDNF and NGF levels. RESULTS A total of 11 studies met the inclusion criteria and were included. The pooled analysis revealed a nonsignificant association between cannabis use and dysregulated blood levels of BDNF (random-effects model, standardized mean differences [SMD] = .26, 95% CI -.34 to .76, p = .40). The results of our subgroup analysis based on BDNF source showed a nonsignificant between-group difference. For NGF levels, four studies were included, the pooled analysis revealed a nonsignificant association between cannabis use and dysregulated blood levels of NGF (random-effects model, SMD = -.60, 95% CI -1.43 to -.23, p = .16). In both analyses, high heterogeneity was observed among the included studies which is a notable limitation to current meta-analysis. CONCLUSION This systematic review highlights the need for further research to elucidate the relationship between cannabis use and these neurotrophic factors. A better understanding of these associations can contribute to our knowledge of the neurobiological effects of cannabis and inform potential implications for mental health, cognitive function, and neurodegenerative disorders.
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Affiliation(s)
- Arman Shafiee
- Department of Psychiatry and Mental HealthAlborz University of Medical SciencesKarajIran
- Student Research Committee, School of MedicineAlborz University of Medical SciencesKarajIran
| | | | - Kyana Jafarabady
- Student Research Committee, School of MedicineAlborz University of Medical SciencesKarajIran
| | - Alireza Eskandari
- Student Research Committee, School of MedicineAlborz University of Medical SciencesKarajIran
| | | | - Mohammad Amin Sattari
- Department of Psychiatry and Mental HealthAlborz University of Medical SciencesKarajIran
| | - Mohammad Javad Amini
- Student Research Committee, School of MedicineAlborz University of Medical SciencesKarajIran
| | - Mahmood Bakhtiyari
- Department of Psychiatry and Mental HealthAlborz University of Medical SciencesKarajIran
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Buffon AC, Salm DC, Heymanns AC, Donatello NN, Martins DC, Wichmann JF, Giacomello L, Horewicz VV, Martins DF, Piovezan AP. Complex Regional Pain Syndrome Type I: Evidence for the CB1 and CB2 Receptors Immunocontent and Beneficial Effect of Local Administration of Cannabidiol in Mice. Cannabis Cannabinoid Res 2023. [PMID: 37903029 DOI: 10.1089/can.2023.0093] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/01/2023] Open
Abstract
Introduction: Complex regional pain syndrome type I (CRPS-I) is a debilitating neuropathic painful condition associated with allodynia, hyperalgesia, sudomotor and/or vasomotor dysfunctions, turning investigation of its pathophysiology and new therapeutic strategies into an essential topic. We aim to investigate the impact of ischemia/reperfusion injury on the immunocontent of CB1 and CB2 cannabinoid receptor isoforms in the paws of mice submitted to a chronic postischemia pain (CPIP) model and the effects of local administration of cannabidiol (CBD) on mechanical hyperalgesia. Methods: Female Swiss mice, 30-35 g, were submitted to the CPIP model on the right hind paw. Skin and muscle samples were removed at different periods for western blot analysis. Results: No changes in the immunocontent of CB1 and CB2 receptors in paw muscle tissues after ischemia-reperfusion were observed. CBD promoted an antihyperalgesic effect in both phases. AM281 reversed the effect of CBD, whereas ruthenium red abolished the late phase. Conclusion: Our results point to the possible beneficial effects of local administration of CBD in modulating CRPS-I in humans. As possible targets for CBD antihyperalgesia in this model, the contribution of cannabinoid receptor CB1, in addition to TRPM8 is suggested.
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Affiliation(s)
- Alexandre C Buffon
- Laboratory of Experimental Neuroscience (LANEX), University of Southern Catarina (UNISUL), Palhoça, Santa Catarina, Brazil
- Post-Graduate Program in Health Sciences, University of Southern Catarina (UNISUL), Palhoça, Santa Catarina, Brazil
- Medicine Degree Course, University of Southern Catarina (UNISUL), Palhoça, Santa Catarina, Brazil
| | - Daiana C Salm
- Laboratory of Experimental Neuroscience (LANEX), University of Southern Catarina (UNISUL), Palhoça, Santa Catarina, Brazil
- Post-Graduate Program in Health Sciences, University of Southern Catarina (UNISUL), Palhoça, Santa Catarina, Brazil
| | - Ana C Heymanns
- Laboratory of Experimental Neuroscience (LANEX), University of Southern Catarina (UNISUL), Palhoça, Santa Catarina, Brazil
- Post-Graduate Program in Health Sciences, University of Southern Catarina (UNISUL), Palhoça, Santa Catarina, Brazil
| | - Nathalia N Donatello
- Laboratory of Experimental Neuroscience (LANEX), University of Southern Catarina (UNISUL), Palhoça, Santa Catarina, Brazil
- Post-Graduate Program in Health Sciences, University of Southern Catarina (UNISUL), Palhoça, Santa Catarina, Brazil
| | - Débora C Martins
- Laboratory of Experimental Neuroscience (LANEX), University of Southern Catarina (UNISUL), Palhoça, Santa Catarina, Brazil
- Medicine Degree Course, University of Southern Catarina (UNISUL), Palhoça, Santa Catarina, Brazil
| | | | - Leandro Giacomello
- Laboratory of Experimental Neuroscience (LANEX), University of Southern Catarina (UNISUL), Palhoça, Santa Catarina, Brazil
- Post-Graduate Program in Health Sciences, University of Southern Catarina (UNISUL), Palhoça, Santa Catarina, Brazil
| | - Verônica V Horewicz
- Laboratory of Experimental Neuroscience (LANEX), University of Southern Catarina (UNISUL), Palhoça, Santa Catarina, Brazil
- Post-Graduate Program in Health Sciences, University of Southern Catarina (UNISUL), Palhoça, Santa Catarina, Brazil
| | - Daniel F Martins
- Laboratory of Experimental Neuroscience (LANEX), University of Southern Catarina (UNISUL), Palhoça, Santa Catarina, Brazil
- Post-Graduate Program in Health Sciences, University of Southern Catarina (UNISUL), Palhoça, Santa Catarina, Brazil
| | - Anna P Piovezan
- Laboratory of Experimental Neuroscience (LANEX), University of Southern Catarina (UNISUL), Palhoça, Santa Catarina, Brazil
- Post-Graduate Program in Health Sciences, University of Southern Catarina (UNISUL), Palhoça, Santa Catarina, Brazil
- Medicine Degree Course, University of Southern Catarina (UNISUL), Palhoça, Santa Catarina, Brazil
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Zhu XW, Yan J, Miao L, He YL, Wang HP, Li X. Safety and efficacy comparison of polyethylene glycol, hemp seed oil, and 5% sugar brine for bowel preparation in older patients: study protocol for a randomized controlled trial. Trials 2023; 24:168. [PMID: 36879331 PMCID: PMC9990200 DOI: 10.1186/s13063-022-07059-1] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/25/2022] [Accepted: 12/30/2022] [Indexed: 03/08/2023] Open
Abstract
BACKGROUND The incidence of colorectal cancer among the middle-aged and elderly is gradually increasing in China. Colonoscopy is an effective method for the early diagnosis of colorectal cancer, and bowel preparation is one of many important factors affecting colonoscopy. Although there are many studies on intestinal cleansers, the results are not ideal. There is evidence that hemp seed oil has certain potential effects in intestinal cleansing, but prospective studies on this topic are still lacking. METHODS This is a randomized, double-blind, single-center clinical study. We randomly assigned 690 participants to groups each administered 3 L of polyethylene glycol (PEG), 30 mL of hemp seed oil and 2 L of PEG, or 30 mL of hempseed oil, 2 L of PEG, and 1000 mL of 5% sugar brine. The Boston Bowel Preparation Scale was considered the primary outcome measure. We evaluated the interval between consumption of bowel preparation and first bowel movement. Secondary indicators included the time of cecal intubation, detection rate of polyps and adenomas, willingness to repeat the same bowel preparation, whether the protocol was tolerated, and whether there were adverse reactions during bowel preparation and were evaluated after counting the total number of bowel movements. DISCUSSION This study aimed to test the hypothesis that hemp seed oil (30 mL) increases the quality of bowel preparation and reduces the amount of PEG. Previously, we found that its combination with 5% sugar brine can reduce the occurrence of adverse reactions. TRIAL REGISTRATION Chinese Clinical Trial Registry ChiCTR2200057626. Prospectively registered on March 15, 2022.
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Affiliation(s)
- Xing Wang Zhu
- The First School of Clinical Medicine, Lanzhou University, Lanzhou, 730000, China
| | - Jun Yan
- Department of General Surgery, The First Hospital of Lanzhou University, Lanzhou, 730000, China.,Key Laboratory of Biological Therapy and Regenerative Medicine of Gansu Province, Lanzhou, 730000, China
| | - Long Miao
- Department of General Surgery, The First Hospital of Lanzhou University, Lanzhou, 730000, China
| | - Ying Li He
- Department of General Surgery, The First Hospital of Lanzhou University, Lanzhou, 730000, China
| | - Hai Ping Wang
- Department of General Surgery, The First Hospital of Lanzhou University, Lanzhou, 730000, China.,Key Laboratory of Biological Therapy and Regenerative Medicine of Gansu Province, Lanzhou, 730000, China
| | - Xun Li
- The First School of Clinical Medicine, Lanzhou University, Lanzhou, 730000, China. .,Department of General Surgery, The First Hospital of Lanzhou University, Lanzhou, 730000, China. .,Key Laboratory of Biological Therapy and Regenerative Medicine of Gansu Province, Lanzhou, 730000, China.
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Pagano C, Navarra G, Coppola L, Avilia G, Bifulco M, Laezza C. Cannabinoids: Therapeutic Use in Clinical Practice. Int J Mol Sci 2022; 23:ijms23063344. [PMID: 35328765 PMCID: PMC8952215 DOI: 10.3390/ijms23063344] [Citation(s) in RCA: 73] [Impact Index Per Article: 36.5] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Revised: 03/14/2022] [Accepted: 03/16/2022] [Indexed: 12/14/2022] Open
Abstract
Medical case reports suggest that cannabinoids extracted from Cannabis sativa have therapeutic effects; however, the therapeutic employment is limited due to the psychotropic effect of its major component, Δ9-tetrahydrocannabinol (THC). The new scientific discoveries related to the endocannabinoid system, including new receptors, ligands, and mediators, allowed the development of new therapeutic targets for the treatment of several pathological disorders minimizing the undesirable psychotropic effects of some constituents of this plant. Today, FDA-approved drugs, such as nabiximols (a mixture of THC and non-psychoactive cannabidiol (CBD)), are employed in alleviating pain and spasticity in multiple sclerosis. Dronabinol and nabilone are used for the treatment of chemotherapy-induced nausea and vomiting in cancer patients. Dronabinol was approved for the treatment of anorexia in patients with AIDS (acquired immune deficiency syndrome). In this review, we highlighted the potential therapeutic efficacy of natural and synthetic cannabinoids and their clinical relevance in cancer, neurodegenerative and dermatological diseases, and viral infections.
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Affiliation(s)
- Cristina Pagano
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, Via Pansini 5, 80131 Naples, Italy or (C.P.); (G.N.); (L.C.); (G.A.)
| | - Giovanna Navarra
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, Via Pansini 5, 80131 Naples, Italy or (C.P.); (G.N.); (L.C.); (G.A.)
| | - Laura Coppola
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, Via Pansini 5, 80131 Naples, Italy or (C.P.); (G.N.); (L.C.); (G.A.)
| | - Giorgio Avilia
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, Via Pansini 5, 80131 Naples, Italy or (C.P.); (G.N.); (L.C.); (G.A.)
| | - Maurizio Bifulco
- Department of Molecular Medicine and Medical Biotechnology, University of Naples Federico II, Via Pansini 5, 80131 Naples, Italy or (C.P.); (G.N.); (L.C.); (G.A.)
- Correspondence: (M.B.); or (C.L.)
| | - Chiara Laezza
- Institute of Endocrinology and Experimental Oncology, IEOS CNR, Via Pansini 5, 80131 Naples, Italy
- Correspondence: (M.B.); or (C.L.)
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Olivas-Aguirre M, Torres-López L, Villatoro-Gómez K, Perez-Tapia SM, Pottosin I, Dobrovinskaya O. Cannabidiol on the Path from the Lab to the Cancer Patient: Opportunities and Challenges. Pharmaceuticals (Basel) 2022; 15:ph15030366. [PMID: 35337163 PMCID: PMC8951434 DOI: 10.3390/ph15030366] [Citation(s) in RCA: 6] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/15/2022] [Revised: 03/12/2022] [Accepted: 03/14/2022] [Indexed: 01/18/2023] Open
Abstract
Cannabidiol (CBD), a major non-psychotropic component of cannabis, is receiving growing attention as a potential anticancer agent. CBD suppresses the development of cancer in both in vitro (cancer cell culture) and in vivo (xenografts in immunodeficient mice) models. For critical evaluation of the advances of CBD on its path from laboratory research to practical application, in this review, we wish to call the attention of scientists and clinicians to the following issues: (a) the biological effects of CBD in cancer and healthy cells; (b) the anticancer effects of CBD in animal models and clinical case reports; (c) CBD’s interaction with conventional anticancer drugs; (d) CBD’s potential in palliative care for cancer patients; (e) CBD’s tolerability and reported side effects; (f) CBD delivery for anticancer treatment.
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Affiliation(s)
- Miguel Olivas-Aguirre
- Laboratory of Immunobiology and Ionic Transport Regulation, Centro Universitario de Investigaciones Biomédicas, Universidad de Colima, Colima 28045, Mexico; (M.O.-A.); (L.T.-L.); (K.V.-G.)
| | - Liliana Torres-López
- Laboratory of Immunobiology and Ionic Transport Regulation, Centro Universitario de Investigaciones Biomédicas, Universidad de Colima, Colima 28045, Mexico; (M.O.-A.); (L.T.-L.); (K.V.-G.)
| | - Kathya Villatoro-Gómez
- Laboratory of Immunobiology and Ionic Transport Regulation, Centro Universitario de Investigaciones Biomédicas, Universidad de Colima, Colima 28045, Mexico; (M.O.-A.); (L.T.-L.); (K.V.-G.)
| | - Sonia Mayra Perez-Tapia
- Unidad de Desarrollo e Investigación en Bioterapeúticos (UDIBI), Escuela Nacional de Ciencias Biológicas, Instituto Politécnico Nacional (ENCB-IPN), Mexico City 11340, Mexico;
| | - Igor Pottosin
- Laboratory of Immunobiology and Ionic Transport Regulation, Centro Universitario de Investigaciones Biomédicas, Universidad de Colima, Colima 28045, Mexico; (M.O.-A.); (L.T.-L.); (K.V.-G.)
- Correspondence: (I.P.); (O.D.)
| | - Oxana Dobrovinskaya
- Laboratory of Immunobiology and Ionic Transport Regulation, Centro Universitario de Investigaciones Biomédicas, Universidad de Colima, Colima 28045, Mexico; (M.O.-A.); (L.T.-L.); (K.V.-G.)
- Correspondence: (I.P.); (O.D.)
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Almeida CF, Teixeira N, Correia-da-Silva G, Amaral C. Cannabinoids in Breast Cancer: Differential Susceptibility According to Subtype. Molecules 2021; 27:156. [PMID: 35011388 PMCID: PMC8746990 DOI: 10.3390/molecules27010156] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2021] [Revised: 12/20/2021] [Accepted: 12/23/2021] [Indexed: 12/11/2022] Open
Abstract
Although cannabinoids have been used for centuries for diverse pathological conditions, recently, their clinical interest and application have emerged due to their diverse pharmacological properties. Indeed, it is well established that cannabinoids exert important actions on multiple sclerosis, epilepsy and pain relief. Regarding cancer, cannabinoids were first introduced to manage chemotherapy-related side effects, though several studies demonstrated that they could modulate the proliferation and death of different cancer cells, as well as angiogenesis, making them attractive agents for cancer treatment. In relation to breast cancer, it has been suggested that estrogen receptor-negative (ER-) cells are more sensitive to cannabinoids than estrogen receptor-positive (ER+) cells. In fact, most of the studies regarding their effects on breast tumors have been conducted on triple-negative breast cancer (TNBC). Nonetheless, the number of studies on human epidermal growth factor receptor 2-positive (HER2+) and ER+ breast tumors has been rising in recent years. However, besides the optimistic results obtained thus far, there is still a long way to go to fully understand the role of these molecules. This review intends to help clarify the clinical potential of cannabinoids for each breast cancer subtype.
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Affiliation(s)
- Cristina Ferreira Almeida
- Laboratory of Biochemistry, Department of Biological Sciences, Faculty of Pharmacy, University of Porto, Rua Jorge Viterbo Ferreira, n° 228, 4050-313 Porto, Portugal; (C.F.A.); (N.T.)
- Associate Laboratory i4HB—Institute for Health and Bioeconomy, Faculty of Pharmacy, University of Porto, Rua Jorge Viterbo Ferreira, n° 228, 4050-313 Porto, Portugal
| | - Natércia Teixeira
- Laboratory of Biochemistry, Department of Biological Sciences, Faculty of Pharmacy, University of Porto, Rua Jorge Viterbo Ferreira, n° 228, 4050-313 Porto, Portugal; (C.F.A.); (N.T.)
- Associate Laboratory i4HB—Institute for Health and Bioeconomy, Faculty of Pharmacy, University of Porto, Rua Jorge Viterbo Ferreira, n° 228, 4050-313 Porto, Portugal
| | - Georgina Correia-da-Silva
- Laboratory of Biochemistry, Department of Biological Sciences, Faculty of Pharmacy, University of Porto, Rua Jorge Viterbo Ferreira, n° 228, 4050-313 Porto, Portugal; (C.F.A.); (N.T.)
- Associate Laboratory i4HB—Institute for Health and Bioeconomy, Faculty of Pharmacy, University of Porto, Rua Jorge Viterbo Ferreira, n° 228, 4050-313 Porto, Portugal
| | - Cristina Amaral
- Laboratory of Biochemistry, Department of Biological Sciences, Faculty of Pharmacy, University of Porto, Rua Jorge Viterbo Ferreira, n° 228, 4050-313 Porto, Portugal; (C.F.A.); (N.T.)
- Associate Laboratory i4HB—Institute for Health and Bioeconomy, Faculty of Pharmacy, University of Porto, Rua Jorge Viterbo Ferreira, n° 228, 4050-313 Porto, Portugal
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Possible roles of AMPK and macropinocytosis in the defense responses against Δ 9-THC toxicity on HL-1 cardiomyocytes. Toxicol Rep 2021; 8:980-987. [PMID: 34026562 PMCID: PMC8131391 DOI: 10.1016/j.toxrep.2021.04.014] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/13/2021] [Revised: 04/19/2021] [Accepted: 04/27/2021] [Indexed: 12/17/2022] Open
Abstract
Cannabinoids are some of the most popular recreationally used illicit drugs, and are frequently consumed along with alcoholic beverages. Although the whole body effects of cannabinoids depend largely on their effects on the central nerve system, cannabinoids could harm the heart directly, due to the presence of the endocannabinoid system including cannabinoid receptor1 and 2 (CB-R1 and CB-R2) in the heart. The aim of this study is to examine the mechanism of direct cardiotoxicity of Δ9-tetrahydrocannabinol (Δ9-THC), the main psychoactive ingredient of cannabis. For this purpose, HL-1 murine atrial cardiac muscle cells were treated with 10 or 30 μM Δ9-THC, along with 100 mM ethanol to examine the possible synergistic effects of Δ9-THC and ethanol. Transcriptome analysis showed upregulation of the genes involved in the unfolded protein response (UPR), including Bip, CHOP, ATF4 and ATF6, in cells treated with Δ9-THC. Immunoblot analysis showed caspase3 activation, indicating apoptosis caused by ER stress in Δ9-THC-treated cells. Microscopic analysis showed that Δ9-THC enhances macropinocytosis, a process involved in the uptake of extracellular fluids including nutrients. Moreover Δ9-THC seemed to activate AMPK, a sensor of intracellular energy status and an activator of macropinocytosis. Finally, we found that compound C (AMPK inhibitor) aggravated cell death by Δ9-THC while AICAR (AMPK activator) ameliorated it. Collectively, these results indicate that the activation of AMPK is necessary for the survival of HL-1 cells against Δ9-THC toxicity. Macropinocytosis might serve as one of the survival pathways downstream of AMPK.
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Malinowska B, Baranowska-Kuczko M, Kicman A, Schlicker E. Opportunities, Challenges and Pitfalls of Using Cannabidiol as an Adjuvant Drug in COVID-19. Int J Mol Sci 2021; 22:1986. [PMID: 33671463 PMCID: PMC7922403 DOI: 10.3390/ijms22041986] [Citation(s) in RCA: 21] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/11/2021] [Revised: 02/11/2021] [Accepted: 02/12/2021] [Indexed: 02/06/2023] Open
Abstract
Severe acute respiratory syndrome coronavirus 2 (SARS-CoV-2) infection may lead to coronavirus disease 2019 (COVID-19) which, in turn, may be associated with multiple organ dysfunction. In this review, we present advantages and disadvantages of cannabidiol (CBD), a non-intoxicating phytocannabinoid from the cannabis plant, as a potential agent for the treatment of COVID-19. CBD has been shown to downregulate proteins responsible for viral entry and to inhibit SARS-CoV-2 replication. Preclinical studies have demonstrated its effectiveness against diseases of the respiratory system as well as its cardioprotective, nephroprotective, hepatoprotective, neuroprotective and anti-convulsant properties, that is, effects that may be beneficial for COVID-19. Only the latter two properties have been demonstrated in clinical studies, which also revealed anxiolytic and antinociceptive effects of CBD (given alone or together with Δ9-tetrahydrocannabinol), which may be important for an adjuvant treatment to improve the quality of life in patients with COVID-19 and to limit post-traumatic stress symptoms. However, one should be aware of side effects of CBD (which are rarely serious), drug interactions (also extending to drugs acting against COVID-19) and the proper route of its administration (vaping may be dangerous). Clearly, further clinical studies are necessary to prove the suitability of CBD for the treatment of COVID-19.
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Affiliation(s)
- Barbara Malinowska
- Department of Experimental Physiology and Pathophysiology, Medical University of Białystok, 15-222 Białystok, Poland; (M.B.-K.); (A.K.)
| | - Marta Baranowska-Kuczko
- Department of Experimental Physiology and Pathophysiology, Medical University of Białystok, 15-222 Białystok, Poland; (M.B.-K.); (A.K.)
- Department of Clinical Pharmacy, Medical University of Białystok, 15-222 Białystok, Poland
| | - Aleksandra Kicman
- Department of Experimental Physiology and Pathophysiology, Medical University of Białystok, 15-222 Białystok, Poland; (M.B.-K.); (A.K.)
| | - Eberhard Schlicker
- Department of Pharmacology and Toxicology, University of Bonn, 53127 Bonn, Germany
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Golombek P, Müller M, Barthlott I, Sproll C, Lachenmeier DW. Conversion of Cannabidiol (CBD) into Psychotropic Cannabinoids Including Tetrahydrocannabinol (THC): A Controversy in the Scientific Literature. TOXICS 2020; 8:E41. [PMID: 32503116 PMCID: PMC7357058 DOI: 10.3390/toxics8020041] [Citation(s) in RCA: 68] [Impact Index Per Article: 17.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 04/27/2020] [Revised: 05/26/2020] [Accepted: 05/29/2020] [Indexed: 01/15/2023]
Abstract
Cannabidiol (CBD) is a naturally occurring, non-psychotropic cannabinoid of the hemp plant Cannabis sativa L. and has been known to induce several physiological and pharmacological effects. While CBD is approved as a medicinal product subject to prescription, it is also widely sold over the counter (OTC) in the form of food supplements, cosmetics and electronic cigarette liquids. However, regulatory difficulties arise from its origin being a narcotic plant or its status as an unapproved novel food ingredient. Regarding the consumer safety of these OTC products, the question whether or not CBD might be degraded into psychotropic cannabinoids, most prominently tetrahydrocannabinol (THC), under in vivo conditions initiated an ongoing scientific debate. This feature review aims to summarize the current knowledge of CBD degradation processes, specifically the results of in vitro and in vivo studies. Additionally, the literature on psychotropic effects of cannabinoids was carefully studied with a focus on the degradants and metabolites of CBD, but data were found to be sparse. While the literature is contradictory, most studies suggest that CBD is not converted to psychotropic THC under in vivo conditions. Nevertheless, it is certain that CBD degrades to psychotropic products in acidic environments. Hence, the storage stability of commercial formulations requires more attention in the future.
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Affiliation(s)
| | | | | | | | - Dirk W. Lachenmeier
- Chemisches und Veterinäruntersuchungsamt (CVUA) Karlsruhe, Weissenburger Straße 3, 76187 Karlsruhe, Germany; (P.G.); (M.M.); (I.B.); (C.S.)
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Durak S, Arasoglu T, Ates SC, Derman S. Enhanced antibacterial and antiparasitic activity of multifunctional polymeric nanoparticles. NANOTECHNOLOGY 2020; 31:175705. [PMID: 31931488 DOI: 10.1088/1361-6528/ab6ab9] [Citation(s) in RCA: 16] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 06/10/2023]
Abstract
Due to the resistance to drugs, studies involving the combination and controlled release of different agents are gradually increasing. In this study, two different active ingredients, known to have antibacterial and antiparasitic activities, were encapsulated into single polymeric nanoparticles. After co-encapsulation their antibacterial and antileishmanial activity was enhanced approximately 5 and 250 times, respectively. Antibacterial and antileishmanial activities of caffeic acid phenethyl ester and juglone loaded, multifunctional nanoformulations (CJ4-CJ6-CJ8) were also evaluated for the first time in the literature comparatively with their combined free formulations. The antibacterial activity of the multifunctional nanoformulation (CJ8) were found to have a much higher activity (MIC values 6.25 and 12.5 μg ml-1 for S. aureus and E. coli, respectively) than all other formulations. Similar efficacy for CJ8 was obtained in the antiparasitic study against the Leishmania promastigotes and the IC50 was reduced to 0.1263 μg ml-1. The high activity of multifunctional nanoparticles is not only due to the synergistic effect of the active molecules but also by the encapsulation into polymeric nanoparticles. Therefore, it has been shown in the literature for the first time that the biological activity of molecules whose activity is increased by the synergistic effect can be improved with nanosystems.
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Affiliation(s)
- Saliha Durak
- Department of Bioengineering, Faculty of Chemical and Metallurgical Engineering, Yildiz Technical University, 34220 Esenler, Istanbul, Turkey. Department of Molecular Biology, Genetics and Bioengineering, Faculty of Engineering and Natural Sciences, Sabancı University, 34956 Tuzla, Istanbul, Turkey
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Vilches JR, Taylor MB, Filbey FM. A Multiple Correspondence Analysis of Patterns of CBD Use in Hemp and Marijuana Users. Front Psychiatry 2020; 11:624012. [PMID: 33519562 PMCID: PMC7840961 DOI: 10.3389/fpsyt.2020.624012] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/30/2020] [Accepted: 12/14/2020] [Indexed: 12/17/2022] Open
Abstract
Background: With the passing of the 2018 Agriculture Improvement Act that legalized hemp-derived products, i.e., cannabidiol (CBD), the use of CBD has increased exponentially. To date, the few studies that have characterized individuals who use CBD suggest that co-use of CBD and tetrahydrocannabinol (THC)-dominant cannabis, i.e., marijuana, is highly prevalent. It is, therefore, important to investigate the relationship between CBD use and marijuana use to understand the antecedents and consequences of co-use of these two cannabis products. Methods: We conducted an online survey using structured questionnaires to determine differences in CBD users with (CBD+MJ) and without co-morbid marijuana use. Group comparisons were carried out using chi-square tests and ANOVA. Multiple correspondence analysis (MCA) with bootstrap ratio testing was performed to examine the relationship between the categorical data. Results: We received 182 survey responses from current CBD users. CBD+MJ had more types of CBD administration (F = 17.07, p < 0.001) and longer lifetime duration of CBD use (χ2 = 12.85, p < 0.05). Results from the MCA yielded two statistically significant dimensions that accounted for 77% of the total variance. Dimension 1 (representing 57% of the variance) associated CBD+MJ with indication of CBD use for medical ailments, use of CBD for more than once a day for longer than 2 years, applying CBD topically or consuming it via vaping or edibles, being female, and, having lower educational attainment. Dimension 2 (representing 20% of the variance) separated the groups primarily on smoking-related behaviors where CBD+MJ was associated with smoking CBD and nicotine. Conclusions: Identifying the factors that influence use of CBD and marijuana can inform future studies on the risks and benefits associated with each substance as well as the impacts of policies related to cannabis-based products.
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Affiliation(s)
- Joseph R Vilches
- Center for BrainHealth, School of Behavioral and Brain Sciences, University of Texas at Dallas, Dallas, TX, United States.,Department of Psychology, University of North Texas, Denton, TX, United States
| | - Mackenzie B Taylor
- Center for BrainHealth, School of Behavioral and Brain Sciences, University of Texas at Dallas, Dallas, TX, United States
| | - Francesca M Filbey
- Center for BrainHealth, School of Behavioral and Brain Sciences, University of Texas at Dallas, Dallas, TX, United States
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