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Iyer P, Niknam Y, Campbell M, Moran F, Kaufman F, Kim A, Sandy M, Zeise L. Animal evidence considered in determination of cannabis smoke and
Δ
9
‐tetrahydrocannabinol (
Δ
9
‐THC
) as causing reproductive toxicity (developmental endpoint); part
II
. Neurodevelopmental effects. Birth Defects Res 2022; 114:1155-1168. [DOI: 10.1002/bdr2.2084] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/01/2022] [Revised: 08/19/2022] [Accepted: 08/24/2022] [Indexed: 11/06/2022]
Affiliation(s)
- Poorni Iyer
- Office of Environmental Health Hazard Assessment (OEHHA) Sacramento California USA
| | - Yassaman Niknam
- Office of Environmental Health Hazard Assessment (OEHHA) Sacramento California USA
| | - Marlissa Campbell
- Office of Environmental Health Hazard Assessment (OEHHA) Sacramento California USA
| | - Francisco Moran
- Office of Environmental Health Hazard Assessment (OEHHA) Sacramento California USA
| | - Farla Kaufman
- Office of Environmental Health Hazard Assessment (OEHHA) Sacramento California USA
| | - Allegra Kim
- Office of Environmental Health Hazard Assessment (OEHHA) Sacramento California USA
| | - Martha Sandy
- Office of Environmental Health Hazard Assessment (OEHHA) Sacramento California USA
| | - Lauren Zeise
- Office of Environmental Health Hazard Assessment (OEHHA) Sacramento California USA
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2
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Wiedmann M, Kuitunen-Paul S, Basedow LA, Wolff M, DiDonato N, Franzen J, Wagner W, Roessner V, Golub Y. DNA methylation changes associated with cannabis use and verbal learning performance in adolescents: an exploratory whole genome methylation study. Transl Psychiatry 2022; 12:317. [PMID: 35933470 PMCID: PMC9357061 DOI: 10.1038/s41398-022-02025-6] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2021] [Revised: 06/02/2022] [Accepted: 06/09/2022] [Indexed: 11/09/2022] Open
Abstract
The association between extent of chronic cannabis use (CCU-extent) and cognitive impairment among adolescents has been the subject of controversial debate. Linking DNA methylation to CCU-extent could help to understand cannabis associated changes in cognitive performance. We analyzed cognitive task performances, CpG methylation in peripheral whole-blood samples and self-reported past-year CCU-extent of n = 18 adolescents (n = 9 psychiatric outpatients with chronic cannabis use (CCU), n = 9 without) who were matched for age, gender and psychiatric disorders. Patients with CCU were at least 24 h abstinent when cognitive tasks were performed. A Principal Component Analysis (PCA) was carried out to identify group differences in whole genome DNA methylation. Mediation analyses were performed between CCU-extent associated CpG sites and CCU-extent associated variables of cognitive tasks. PCA results indicated large differences in whole genome DNA methylation levels between the groups that did not reach statistical significance. Six CpG sites revealed reduced methylation associated with CCU-extent. Furthermore, CCU-extent was associated with lower scores in verbal learning. All six CpG sites mediated the effects between CCU-extent and verbal learning free recall. Our results indicate that CCU is associated with certain patterns in the methylome. Furthermore, CCU-extent associated impairments in memory function are mediated via differential methylation of the six CCU-associated CpG sits. Six identified CpG are located in genes previously described in the context of neurodegeneration, hippocampus-dependent learning and neurogenesis. However, these results have to be carefully interpreted due to a small sample size. Replication studies are warranted.
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Affiliation(s)
- Melina Wiedmann
- Department of Child and Adolescent Psychiatry, Technische Universität Dresden, Faculty of Medicine, 01307, Dresden, Germany.
| | - Sören Kuitunen-Paul
- grid.4488.00000 0001 2111 7257Department of Child and Adolescent Psychiatry, Technische Universität Dresden, Faculty of Medicine, 01307 Dresden, Germany ,grid.6810.f0000 0001 2294 5505Technische Universität Chemnitz, Chair for Clinical Psychology and Psychotherapy, Chemnitz, Germany
| | - Lukas Andreas Basedow
- grid.4488.00000 0001 2111 7257Department of Child and Adolescent Psychiatry, Technische Universität Dresden, Faculty of Medicine, 01307 Dresden, Germany
| | - Max Wolff
- grid.6363.00000 0001 2218 4662Charité—Universitätsmedizin Berlin, corporate member of Freie Universität Berlin and Humboldt-Universität zu Berlin, Department of Psychiatry and Psychotherapy, Campus Charité Mitte, Berlin, Germany
| | - Nataliya DiDonato
- grid.4488.00000 0001 2111 7257Technische Universität Dresden, University Hospital, Institute for Clinical Genetics, Dresden, Germany
| | - Julia Franzen
- grid.1957.a0000 0001 0728 696XHelmholtz-Institute for Biomedical Engineering, Stem Cell Biology and Cellular Engineering, RWTH Aachen University Medical School, Aachen, Germany
| | - Wolfgang Wagner
- grid.1957.a0000 0001 0728 696XHelmholtz-Institute for Biomedical Engineering, Stem Cell Biology and Cellular Engineering, RWTH Aachen University Medical School, Aachen, Germany
| | - Veit Roessner
- grid.4488.00000 0001 2111 7257Department of Child and Adolescent Psychiatry, Technische Universität Dresden, Faculty of Medicine, 01307 Dresden, Germany
| | - Yulia Golub
- grid.4488.00000 0001 2111 7257Department of Child and Adolescent Psychiatry, Technische Universität Dresden, Faculty of Medicine, 01307 Dresden, Germany
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3
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Effects of Cannabinoid Exposure during Neurodevelopment on Future Effects of Drugs of Abuse: A Preclinical Perspective. Int J Mol Sci 2021; 22:ijms22189989. [PMID: 34576153 PMCID: PMC8472179 DOI: 10.3390/ijms22189989] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2021] [Revised: 08/30/2021] [Accepted: 09/09/2021] [Indexed: 12/29/2022] Open
Abstract
The endocannabinoid system plays a central role in the earliest stages of embryonic, postnatal and adolescent neurodevelopment. Aberrant activity of this system at key developmental phases has been shown to affect neural development. The aim of this review is to synthesise and analyse preclinical insights within rodent populations, focusing on the effects that perinatal (embryonic, gestational and early postnatal developmental stages) and adolescent (postnatal day 21–60) cannabinoid exposure impose across time on the subsequent activity of various drugs of abuse. Results in rodents show that exposure to cannabinoids during the perinatal and adolescent period can lead to multifaceted behavioural and molecular changes. In the perinatal period, significant effects of Δ9-THC exposure on subsequent opiate and amphetamine reward-related behaviours were observed primarily in male rodents. These effects were not extended to include cocaine or alcohol. In adolescence, various cannabinoid agonists were used experimentally. This array of cannabinoids demonstrated consistent effects on opioids across sex. In contrast, no significant effects were observed regarding the future activity of amphetamines and cocaine. However, these studies focused primarily on male rodents. In conclusion, numerous gaps and limitations are apparent in the current body of research. The sparsity of studies analysing the perinatal period must be addressed. Future research within both periods must also focus on delineating sex-specific effects, moving away from a male-centric focus. Studies should also aim to utilise more clinically relevant cannabinoid treatments.
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4
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Bara A, Ferland JMN, Rompala G, Szutorisz H, Hurd YL. Cannabis and synaptic reprogramming of the developing brain. Nat Rev Neurosci 2021; 22:423-438. [PMID: 34021274 DOI: 10.1038/s41583-021-00465-5] [Citation(s) in RCA: 69] [Impact Index Per Article: 23.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 03/31/2021] [Indexed: 02/08/2023]
Abstract
Recent years have been transformational in regard to the perception of the health risks and benefits of cannabis with increased acceptance of use. This has unintended neurodevelopmental implications given the increased use of cannabis and the potent levels of Δ9-tetrahydrocannabinol today being consumed by pregnant women, young mothers and teens. In this Review, we provide an overview of the neurobiological effects of cannabinoid exposure during prenatal/perinatal and adolescent periods, in which the endogenous cannabinoid system plays a fundamental role in neurodevelopmental processes. We highlight impaired synaptic plasticity as characteristic of developmental exposure and the important contribution of epigenetic reprogramming that maintains the long-term impact into adulthood and across generations. Such epigenetic influence by its very nature being highly responsive to the environment also provides the potential to diminish neural perturbations associated with developmental cannabis exposure.
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Affiliation(s)
- Anissa Bara
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, Mount Sinai, NY, USA.,Department of Neuroscience, Icahn School of Medicine at Mount Sinai, Mount Sinai, NY, USA.,Addiction Institute of Mount Sinai, Mount Sinai, NY, USA.,Friedman Brain Institute, Mount Sinai, NY, USA
| | - Jacqueline-Marie N Ferland
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, Mount Sinai, NY, USA.,Department of Neuroscience, Icahn School of Medicine at Mount Sinai, Mount Sinai, NY, USA.,Addiction Institute of Mount Sinai, Mount Sinai, NY, USA.,Friedman Brain Institute, Mount Sinai, NY, USA
| | - Gregory Rompala
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, Mount Sinai, NY, USA.,Department of Neuroscience, Icahn School of Medicine at Mount Sinai, Mount Sinai, NY, USA.,Addiction Institute of Mount Sinai, Mount Sinai, NY, USA.,Friedman Brain Institute, Mount Sinai, NY, USA
| | - Henrietta Szutorisz
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, Mount Sinai, NY, USA.,Department of Neuroscience, Icahn School of Medicine at Mount Sinai, Mount Sinai, NY, USA.,Addiction Institute of Mount Sinai, Mount Sinai, NY, USA.,Friedman Brain Institute, Mount Sinai, NY, USA
| | - Yasmin L Hurd
- Department of Psychiatry, Icahn School of Medicine at Mount Sinai, Mount Sinai, NY, USA. .,Department of Neuroscience, Icahn School of Medicine at Mount Sinai, Mount Sinai, NY, USA. .,Addiction Institute of Mount Sinai, Mount Sinai, NY, USA. .,Friedman Brain Institute, Mount Sinai, NY, USA.
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5
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Salmanzadeh H, Ahmadi-Soleimani SM, Azadi M, Halliwell RF, Azizi H. Adolescent Substance Abuse, Transgenerational Consequences and Epigenetics. Curr Neuropharmacol 2021; 19:1560-1569. [PMID: 33655865 PMCID: PMC8762180 DOI: 10.2174/1570159x19666210303121519] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/08/2020] [Revised: 01/13/2021] [Accepted: 02/12/2021] [Indexed: 11/22/2022] Open
Abstract
Adolescence is the transitional period between childhood and adulthood and a critical period in brain development. Adolescence in humans is also associated with increased expression of risk-taking behaviors. Epidemiological and clinical studies, for example, show a surge of drug abuse and raise the hypothesis that the adolescent brain undergoes critical changes resulting in diminished control. Determining how substance abuse during this critical period might cause longterm neurobiological changes in cognition and behavior is therefore critically important. The present work aims to provide an evaluation of the transgenerational and multi-generational phenotypes derived from parent animals exposed to drugs of abuse only during their adolescence. Specifically, we will consider changes found following the administration of cannabinoids, nicotine, alcohol and opiates. In addition, epigenetic modifications of the genome following drug exposure will be discussed as emerging evidence of the underlying adverse transgenerational effects. Notwithstanding, much of the new data discussed here is from animal models, indicating that future clinical studies are much needed to better understand the neurobiological consequences and mechanisms of drug actions on the human brains' development and maturation.
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Affiliation(s)
| | | | | | - Robert F. Halliwell
- Address correspondence to this author at the TJ Long School of Pharmacy, University of the Pacific, Stockton, California, USA; Tel: +1 (209) 946 2074; E-mail: and Department of Physiology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran; Tel: +98-21-82884587; Fax: +98-21-82884528; E-mail:
| | - Hossein Azizi
- Address correspondence to this author at the TJ Long School of Pharmacy, University of the Pacific, Stockton, California, USA; Tel: +1 (209) 946 2074; E-mail: and Department of Physiology, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran; Tel: +98-21-82884587; Fax: +98-21-82884528; E-mail:
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6
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Hempel BJ, Crissman ME, Imanalieva A, Melkumyan M, Winston CA, Riley AL. Cross-generational THC Exposure Weakly Attenuates Cocaine's Rewarding Effects in Adult Male Offspring. Physiol Behav 2020; 227:113164. [PMID: 32891609 DOI: 10.1016/j.physbeh.2020.113164] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/15/2020] [Revised: 08/27/2020] [Accepted: 08/31/2020] [Indexed: 10/23/2022]
Abstract
Adolescents represent a large demographic of marijuana consumers. Regrettably, use during this developmental period has been associated with above average health risks. A growing body of evidence suggests that adolescent drug use in the lifetime of a parent can modify behavior and neurochemistry in descendants without direct exposure. The current study was designed to evaluate the effects of pre-conception THC during adolescence on vulnerability to cocaine in adult male offspring. Male and female rats were given an intermittent THC (0 or 1.5 mg/kg) exposure regimen during the adolescent window and mated with drug group conspecifics in adulthood. F1-THC and F1-Veh pups were cross fostered to drug naïve control dams. In Experiment 1, adult offspring underwent cocaine (0 or 15 mg/kg) locomotor sensitization procedures and showed no effect of parental THC exposure on locomotor activity. In Experiment 2, intravenous catheters were implanted and subjects were tested under a number of reinforcement schedules with cocaine (FR1, FR5, FR10, PR, dose-response, extinction, cue + stress induced reinstatement). F1-THC subjects exhibited a slight decrease in cocaine responding during acquisition and a more rapid extinction, but they failed to produce significant differences on any other measure. These findings indicate that adolescent cannabis use likely has minimal effects on cocaine abuse liability in the next generation.
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Affiliation(s)
- Briana J Hempel
- Psychopharmacology Laboratory, Department of Neuroscience, Center for Behavioral Neuroscience, American University, 4400 Massachusetts Ave NW, Washington, D.C. 20016, USA.
| | - Madeline E Crissman
- Psychopharmacology Laboratory, Department of Neuroscience, Center for Behavioral Neuroscience, American University, 4400 Massachusetts Ave NW, Washington, D.C. 20016, USA
| | - Aikerim Imanalieva
- Psychopharmacology Laboratory, Department of Neuroscience, Center for Behavioral Neuroscience, American University, 4400 Massachusetts Ave NW, Washington, D.C. 20016, USA
| | - Mariam Melkumyan
- Psychopharmacology Laboratory, Department of Neuroscience, Center for Behavioral Neuroscience, American University, 4400 Massachusetts Ave NW, Washington, D.C. 20016, USA
| | - Chloe A Winston
- Psychopharmacology Laboratory, Department of Neuroscience, Center for Behavioral Neuroscience, American University, 4400 Massachusetts Ave NW, Washington, D.C. 20016, USA
| | - Anthony L Riley
- Psychopharmacology Laboratory, Department of Neuroscience, Center for Behavioral Neuroscience, American University, 4400 Massachusetts Ave NW, Washington, D.C. 20016, USA.
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7
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Holloway ZR, Hawkey AB, Torres AK, Evans J, Pippen E, White H, Katragadda V, Kenou B, Wells C, Murphy SK, Rezvani AH, Levin ED. Paternal cannabis extract exposure in rats: Preconception timing effects on neurodevelopmental behavior in offspring. Neurotoxicology 2020; 81:180-188. [DOI: 10.1016/j.neuro.2020.10.007] [Citation(s) in RCA: 5] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/09/2020] [Revised: 10/14/2020] [Accepted: 10/14/2020] [Indexed: 01/22/2023]
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8
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Baratta AM, Rathod RS, Plasil SL, Seth A, Homanics GE. Exposure to drugs of abuse induce effects that persist across generations. INTERNATIONAL REVIEW OF NEUROBIOLOGY 2020; 156:217-277. [PMID: 33461664 PMCID: PMC8167819 DOI: 10.1016/bs.irn.2020.08.003] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Substance use disorders are highly prevalent and continue to be one of the leading causes of disability in the world. Notably, not all people who use addictive drugs develop a substance use disorder. Although substance use disorders are highly heritable, patterns of inheritance cannot be explained purely by Mendelian genetic mechanisms. Vulnerability to developing drug addiction depends on the interplay between genetics and environment. Additionally, evidence from the past decade has pointed to the role of epigenetic inheritance in drug addiction. This emerging field focuses on how environmental perturbations, including exposure to addictive drugs, induce epigenetic modifications that are transmitted to the embryo at fertilization and modify developmental gene expression programs to ultimately impact subsequent generations. This chapter highlights intergenerational and transgenerational phenotypes in offspring following a history of parental drug exposure. Special attention is paid to parental preconception exposure studies of five drugs of abuse (alcohol, cocaine, nicotine, cannabinoids, and opiates) and associated behavioral and physiological outcomes in offspring. The highlighted studies demonstrate that parental exposure to drugs of abuse has enduring effects that persist into subsequent generations. Understanding the contribution of epigenetic inheritance in drug addiction may provide clues for better treatments and therapies for substance use disorders.
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Affiliation(s)
- Annalisa M Baratta
- Center for Neuroscience, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States
| | - Richa S Rathod
- Department of Anesthesiology and Perioperative Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States
| | - Sonja L Plasil
- Department of Pharmacology and Chemical Biology, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States
| | - Amit Seth
- Department of Anesthesiology and Perioperative Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States
| | - Gregg E Homanics
- Center for Neuroscience, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States; Department of Anesthesiology and Perioperative Medicine, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States; Department of Pharmacology and Chemical Biology, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States; Department of Neurobiology, University of Pittsburgh School of Medicine, Pittsburgh, PA, United States.
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9
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Hempel BJ, Melkumyan M, Crissman ME, Winston CA, Madar J, Riley AL. Pre-conception exposure to THC fails to impact nicotine reward in adult offspring. Pharmacol Biochem Behav 2020; 197:173001. [PMID: 32710886 DOI: 10.1016/j.pbb.2020.173001] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/16/2020] [Accepted: 07/19/2020] [Indexed: 01/04/2023]
Abstract
Exposure to environmental stimuli in one generation can produce altered behavioral and neurobiological phenotypes in descendants. Recent work has shown that parental exposure to cannabinoids alters the rewarding properties of other abused drugs in the subsequent generation. However, whether preconception Δ9-tetrahydrocannabinol (THC) administration modifies the affective properties of nicotine in offspring is unknown. To address this question, male and female rats (F0) received THC (0 or 1.5 mg/kg) throughout the adolescent window and were bred on PND 65. In Experiment 1, adult F1-THC and F1-Veh progeny (males and females) underwent nicotine locomotor sensitization procedures during which nicotine (0 or 0.4 mg/kg) was administered every other day for five exposures, and locomotor activity was recorded on each exposure followed by a final nicotine challenge. There was no cross-generational effect of THC on nicotine locomotor sensitization, although acute exposure to nicotine produced greater activity in females relative to males independent of THC history. In Experiment 2, adult F1-THC and F1-Veh progeny (males and females) were implanted with jugular catheters and trained to self-administer nicotine (0.03 mg/kg/infusion). Following acquisition, all subjects were allowed to self-administer nicotine on a number of reinforcement schedules, e.g., FR2, FR5 and PR, followed by dose response and extinction procedures. Across all indices, F1-THC and F1-Veh subjects displayed similar IVSA of nicotine with no sex differences. The fact that there was no evidence of cross-generational effects of THC on nicotine suggests that such effects are drug-specific.
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Affiliation(s)
- Briana J Hempel
- Psychopharmacology Laboratory, Center for Behavioral Neuroscience, American University, 4400 Massachusetts Ave NW, Washington, D.C. 20016, USA.
| | - Mariam Melkumyan
- Psychopharmacology Laboratory, Center for Behavioral Neuroscience, American University, 4400 Massachusetts Ave NW, Washington, D.C. 20016, USA
| | - Madeline E Crissman
- Psychopharmacology Laboratory, Center for Behavioral Neuroscience, American University, 4400 Massachusetts Ave NW, Washington, D.C. 20016, USA
| | - Chloe A Winston
- Psychopharmacology Laboratory, Center for Behavioral Neuroscience, American University, 4400 Massachusetts Ave NW, Washington, D.C. 20016, USA
| | - Jacob Madar
- Psychopharmacology Laboratory, Center for Behavioral Neuroscience, American University, 4400 Massachusetts Ave NW, Washington, D.C. 20016, USA
| | - Anthony L Riley
- Psychopharmacology Laboratory, Center for Behavioral Neuroscience, American University, 4400 Massachusetts Ave NW, Washington, D.C. 20016, USA.
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10
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Multi-, Inter-, and Transgenerational Effects of Drugs of Abuse on Behavior. Curr Top Behav Neurosci 2020; 42:247-258. [PMID: 31396893 DOI: 10.1007/7854_2019_106] [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: 04/05/2023]
Abstract
Transgenerational epigenetic inheritance is a burgeoning field that has recently garnered much attention. A growing body of evidence identifies behavioral phenotypes associated with inter-, multi-, and transgenerational studies following a wide variety of parental exposures. This chapter in current topics in behavioral neurogenomics examines the evidence for the presence of behavioral phenotypes and, in particular, the varied and often opposite behavioral responses observed with protocol shifts. Effects following parental exposure to drugs of abuse are used as an example of the wide range of behavioral outcomes and the variability associated with these multiple generation studies. The behavioral phenotypes associated with drug exposure are reviewed in depth.
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11
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Carty DR, Miller ZS, Thornton C, Pandelides Z, Kutchma ML, Willett KL. Multigenerational consequences of early-life cannabinoid exposure in zebrafish. Toxicol Appl Pharmacol 2018; 364:133-143. [PMID: 30594692 DOI: 10.1016/j.taap.2018.12.021] [Citation(s) in RCA: 20] [Impact Index Per Article: 3.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/28/2018] [Revised: 12/24/2018] [Accepted: 12/26/2018] [Indexed: 12/21/2022]
Abstract
While Δ9-tetrahydrocannabinol (THC) has been widely studied in the realm of developmental and reproductive toxicology, few studies have investigated potential toxicities from a second widely used cannabis constituent, cannabidiol (CBD). CBD is popularized for its therapeutic potential for reducing seizure frequencies in epilepsy. This study investigated developmental origins of health and disease (DOHaD) via multigenerational gene expression patterns, behavior phenotypes, and reproductive fitness of a subsequent F1 following an F0 developmental exposure of zebrafish (Danio rerio) to THC (0.024, 0.12, 0.6 mg/L; 0.08, 0.4, 2 μM) or CBD (0.006, 0.03, 0.15 mg/L; 0.02, 0.1, 0.5 μM). Embryonic exposure at these concentrations did not cause notable morphological abnormalities in either F0 or F1 generations. However, during key developmental stages (14, 24, 48, 72, and 96 h post fertilization) THC and CBD caused differential expression of c-fos, brain-derived neurotrophic factor (bdnf), and deleted-in-azoospermia like (dazl), while in F1 larvae only CBD differentially expressed dazl. Larval photomotor behavior was reduced (F0) or increased (F1) by THC exposure, while CBD had no effect on F0 larvae, but decreased activity in the unexposed F1 larvae. These results support our hypothesis of cannabinoid-related developmental neurotoxicity. As adults, F0 fecundity was reduced, but it was not in F1 adults. Conversely, in the adult open field test there were no significant effects in F0 fish, but a significant reduction in the time in periphery was seen in F1 fish from the highest THC exposure group. The results highlight the need to consider long-term ramifications of early-life exposure to cannabinoids.
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Affiliation(s)
- Dennis R Carty
- Department of BioMolecular Sciences, School of Pharmacy, University of Mississippi, University, MS 38677, USA; Department of Molecular Biosciences, School of Veterinary Medicine, University of California, Davis, CA 95616, USA
| | - Zachary S Miller
- Department of BioMolecular Sciences, School of Pharmacy, University of Mississippi, University, MS 38677, USA
| | - Cammi Thornton
- Department of BioMolecular Sciences, School of Pharmacy, University of Mississippi, University, MS 38677, USA
| | - Zacharias Pandelides
- Department of BioMolecular Sciences, School of Pharmacy, University of Mississippi, University, MS 38677, USA
| | - Marisa L Kutchma
- Department of BioMolecular Sciences, School of Pharmacy, University of Mississippi, University, MS 38677, USA
| | - Kristine L Willett
- Department of BioMolecular Sciences, School of Pharmacy, University of Mississippi, University, MS 38677, USA.
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12
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Murphy SK, Itchon-Ramos N, Visco Z, Huang Z, Grenier C, Schrott R, Acharya K, Boudreau MH, Price TM, Raburn DJ, Corcoran DL, Lucas JE, Mitchell JT, McClernon FJ, Cauley M, Hall BJ, Levin ED, Kollins SH. Cannabinoid exposure and altered DNA methylation in rat and human sperm. Epigenetics 2018; 13:1208-1221. [PMID: 30521419 PMCID: PMC6986792 DOI: 10.1080/15592294.2018.1554521] [Citation(s) in RCA: 131] [Impact Index Per Article: 21.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/19/2023] Open
Abstract
Little is known about the reproductive effects of paternal cannabis exposure. We evaluated associations between cannabis or tetrahydrocannabinol (THC) exposure and altered DNA methylation in sperm from humans and rats, respectively. DNA methylation, measured by reduced representation bisulfite sequencing, differed in the sperm of human users from non-users by at least 10% at 3,979 CpG sites. Pathway analyses indicated Hippo Signaling and Pathways in Cancer as enriched with altered genes (Bonferroni p < 0.02). These same two pathways were also enriched with genes having altered methylation in sperm from THC-exposed versus vehicle-exposed rats (p < 0.01). Data validity is supported by significant correlations between THC exposure levels in humans and methylation for 177 genes, and substantial overlap in THC target genes in rat sperm (this study) and genes previously reported as having altered methylation in the brain of rat offspring born to parents both exposed to THC during adolescence. In humans, cannabis use was also associated with significantly lower sperm concentration. Findings point to possible pre-conception paternal reproductive risks associated with cannabis use.
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Affiliation(s)
- Susan K Murphy
- a Department of Obstetrics and Gynecology , Duke University Medical Center , Durham , NC , USA
| | - Nilda Itchon-Ramos
- b Department of Psychiatry and Behavioral Sciences , Duke University Medical Center , Durham , NC , USA
| | - Zachary Visco
- a Department of Obstetrics and Gynecology , Duke University Medical Center , Durham , NC , USA
| | - Zhiqing Huang
- a Department of Obstetrics and Gynecology , Duke University Medical Center , Durham , NC , USA
| | - Carole Grenier
- a Department of Obstetrics and Gynecology , Duke University Medical Center , Durham , NC , USA
| | - Rose Schrott
- c Duke Nicholas School of the Environment , University Program in Environmental Health , Durham , NC , USA
| | - Kelly Acharya
- a Department of Obstetrics and Gynecology , Duke University Medical Center , Durham , NC , USA
| | - Marie-Helene Boudreau
- a Department of Obstetrics and Gynecology , Duke University Medical Center , Durham , NC , USA
| | - Thomas M Price
- a Department of Obstetrics and Gynecology , Duke University Medical Center , Durham , NC , USA
| | - Douglas J Raburn
- a Department of Obstetrics and Gynecology , Duke University Medical Center , Durham , NC , USA
| | - David L Corcoran
- d Duke Center for Genomic and Computational Biology , Duke University Medical Center , Durham , NC , USA
| | - Joseph E Lucas
- e Social Sciences Research Institute , Duke University Medical Center , Durham , NC , USA
| | - John T Mitchell
- b Department of Psychiatry and Behavioral Sciences , Duke University Medical Center , Durham , NC , USA
| | - F Joseph McClernon
- b Department of Psychiatry and Behavioral Sciences , Duke University Medical Center , Durham , NC , USA
| | - Marty Cauley
- f Duke Cancer Institute, Duke University Medical Center , Durham , NC , USA
| | - Brandon J Hall
- g Department of Surgery , Duke University Medical Center , Durham , NC , USA
| | - Edward D Levin
- b Department of Psychiatry and Behavioral Sciences , Duke University Medical Center , Durham , NC , USA
| | - Scott H Kollins
- b Department of Psychiatry and Behavioral Sciences , Duke University Medical Center , Durham , NC , USA
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