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Dunn AD, Robinson SA, Nwokafor C, Estill M, Ferrante J, Shen L, Lemchi CO, Creus-Muncunill J, Ramirez A, Mengaziol J, Brynildsen JK, Leggas M, Horn J, Ehrlich ME, Blendy JA. Molecular and long-term behavioral consequences of neonatal opioid exposure and withdrawal in mice. Front Behav Neurosci 2023; 17:1202099. [PMID: 37424750 PMCID: PMC10324024 DOI: 10.3389/fnbeh.2023.1202099] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/07/2023] [Accepted: 06/06/2023] [Indexed: 07/11/2023] Open
Abstract
Introduction Infants exposed to opioids in utero are at high risk of exhibiting Neonatal Opioid Withdrawal Syndrome (NOWS), a combination of somatic withdrawal symptoms including high pitched crying, sleeplessness, irritability, gastrointestinal distress, and in the worst cases, seizures. The heterogeneity of in utero opioid exposure, particularly exposure to polypharmacy, makes it difficult to investigate the underlying molecular mechanisms that could inform early diagnosis and treatment of NOWS, and challenging to investigate consequences later in life. Methods To address these issues, we developed a mouse model of NOWS that includes gestational and post-natal morphine exposure that encompasses the developmental equivalent of all three human trimesters and assessed both behavior and transcriptome alterations. Results Opioid exposure throughout all three human equivalent trimesters delayed developmental milestones and produced acute withdrawal phenotypes in mice reminiscent of those observed in infants. We also uncovered different patterns of gene expression depending on the duration and timing of opioid exposure (3-trimesters, in utero only, or the last trimester equivalent only). Opioid exposure and subsequent withdrawal affected social behavior and sleep in adulthood in a sex-dependent manner but did not affect adult behaviors related to anxiety, depression, or opioid response. Discussion Despite marked withdrawal and delays in development, long-term deficits in behaviors typically associated with substance use disorders were modest. Remarkably, transcriptomic analysis revealed an enrichment for genes with altered expression in published datasets for Autism Spectrum Disorders, which correlate well with the deficits in social affiliation seen in our model. The number of differentially expressed genes between the NOWS and saline groups varied markedly based on exposure protocol and sex, but common pathways included synapse development, the GABAergic and myelin systems, and mitochondrial function.
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Affiliation(s)
- Amelia D. Dunn
- Department of Systems Pharmacology and Translational Therapeutics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
| | - Shivon A. Robinson
- Department of Systems Pharmacology and Translational Therapeutics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
- Department of Psychology, Williams College, Williamstown, MA, United States
| | - Chiso Nwokafor
- Department of Neurology, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Molly Estill
- Department of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Julia Ferrante
- Department of Systems Pharmacology and Translational Therapeutics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
| | - Li Shen
- Department of Neuroscience, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Crystal O. Lemchi
- Department of Systems Pharmacology and Translational Therapeutics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
| | - Jordi Creus-Muncunill
- Department of Neurology, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Angie Ramirez
- Department of Neurology, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Juliet Mengaziol
- Department of Systems Pharmacology and Translational Therapeutics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
| | - Julia K. Brynildsen
- Department of Bioengineering, School of Engineering and Applied Science, University of Pennsylvania, Philadelphia, PA, United States
| | - Mark Leggas
- Department of Pharmaceutical Sciences, St. Jude Children’s Research Hospital, Memphis, TN, United States
| | - Jamie Horn
- Department of Pharmaceutical Sciences, St. Jude Children’s Research Hospital, Memphis, TN, United States
| | - Michelle E. Ehrlich
- Department of Neurology, Icahn School of Medicine at Mount Sinai, New York, NY, United States
| | - Julie A. Blendy
- Department of Systems Pharmacology and Translational Therapeutics, Perelman School of Medicine, University of Pennsylvania, Philadelphia, PA, United States
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Lepore G, Morley-McLaughlin T, Davidson N, Han C, Masese C, Reynolds G, Saltz V, Robinson SA. Buprenorphine reduces somatic withdrawal in a mouse model of early-life morphine exposure. Drug Alcohol Depend 2023; 248:109938. [PMID: 37267743 DOI: 10.1016/j.drugalcdep.2023.109938] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/05/2023] [Revised: 05/10/2023] [Accepted: 05/11/2023] [Indexed: 06/04/2023]
Abstract
The rising prevalence of early-life opioid exposure has become a pressing public health issue in the U.S. Neonates exposed to opioids in utero are at risk of experiencing a constellation of postpartum withdrawal symptoms commonly referred to as neonatal opioid withdrawal syndrome (NOWS). Buprenorphine (BPN), a partial agonist at the mu-opioid receptor (MOR) and antagonist at the kappa-opioid receptor (KOR), is currently approved to treat opioid use disorder in adult populations. Recent research suggests that BPN may also be effective in reducing withdrawal symptoms in neonates who were exposed to opioids in utero. We sought to determine whether BPN attenuates somatic withdrawal in a mouse model of NOWS. Our findings indicate that the administration of morphine (10mg/kg, s.c.) from postnatal day (PND) 1-14 results in increased somatic symptoms upon naloxone-precipitated (1mg/kg, s.c.) withdrawal. Co-administration of BPN (0.3mg/kg, s.c.) from PND 12-14 attenuated symptoms in morphine-treated mice. On PND 15, 24h following naloxone-precipitated withdrawal, a subset of mice was examined for thermal sensitivity in the hot plate test. BPN treatment significantly increased response latency in morphine-exposed mice. Lastly, neonatal morphine exposure elevated mRNA expression of KOR, and reduced mRNA expression of corticotropin-releasing hormone (CRH) in the periaqueductal gray when measured on PND 14. Altogether, this data provides support for the therapeutic effects of acute low-dose buprenorphine treatment in a mouse model of neonatal opioid exposure and withdrawal.
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Affiliation(s)
- Gina Lepore
- Department of Systems Pharmacology and Translational Therapeutics. Perelman School of Medicine, University of PennsylvaniaPhiladelphiaPA19104, United States
| | | | - Natalie Davidson
- Department of Psychology, Williams CollegeWilliamsMA01267, United States
| | - Caitlin Han
- Department of Psychology, Williams CollegeWilliamsMA01267, United States
| | - Cynthia Masese
- Department of Psychology, Williams CollegeWilliamsMA01267, United States
| | - Grace Reynolds
- Department of Psychology, Williams CollegeWilliamsMA01267, United States
| | - Victoria Saltz
- Department of Psychology, Williams CollegeWilliamsMA01267, United States
| | - Shivon A Robinson
- Department of Psychology, Williams CollegeWilliamsMA01267, United States.
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Wu CY, Chen HH, Tao PL, Yuan ZF. Comparisons of stress-related neuronal activation induced by restraint in adult male rat offspring with prenatal exposure to buprenorphine, methadone, or morphine. CHINESE J PHYSIOL 2023; 66:65-72. [PMID: 37082994 DOI: 10.4103/cjop.cjop-d-23-00015] [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: 04/22/2023] Open
Abstract
Prenatal opioid exposure may impede the development of adaptive responses to environmental stimuli by altering the stress-sensitive brain circuitry located at the paraventricular nucleus of the hypothalamus (PVH) and locus coeruleus (LC). Corticotropin-releasing factor (CRF) released from neurons in the PVH has emerged as a key molecule to initiate and integrate the stress response. Methadone (Meth) and buprenorphine (Bu) are two major types of synthetic opioid agonists for first-line medication-assisted treatment of opioid (e.g., morphine, Mor) use disorder in pregnant women. No studies have compared the detrimental effects of prenatal exposure to Meth versus Bu on the stress response of their offspring upon reaching adulthood. In this study, we aimed to compare stress-related neuronal activation in the PVH and LC induced by restraint (RST) stress in adult male rat offspring with prenatal exposure to the vehicle (Veh), Bu, Meth, or Mor. CFos-immunoreactive cells were used as an indicator for neuronal activation. We found that RST induced less neuronal activation in the Meth or Mor exposure groups compared with that in the Bu or Veh groups; no significant difference was detected between the Bu and Veh exposure groups. RST-induced neuronal activation was completely prevented by central administration of a CRF receptor antagonist (α-helical CRF9-41, 10 μg/3 μL) in all exposure groups, suggesting the crucial role of CRF in this stress response. In offspring without RST, central administration of CRF (0.5 μg/3 μL)-induced neuronal activation in the PVH and LC. CRF-induced neuronal activation was lessened in the Meth or Mor exposure groups compared with that in the Bu or Veh groups; no significant difference was detected between the Bu and Veh exposure groups. Moreover, RST- or CRF-induced neuronal activation in the Meth exposure group was comparable with that in the Mor exposure group. Further immunohistochemical analysis revealed that the Meth and Mor exposure groups displayed less CRF neurons in the PVH of offspring with or without RST compared with the Bu or Veh groups. Thus, stress-induced neuronal activation in the PVH and LC was well preserved in adult male rat offspring with prenatal exposure to Bu, but it was substantially lessened in those with prenatal exposure to Meth or Mor. Lowered neuronal activation found in the Meth or Mor exposure groups may be, at least in part, due to the reduction in the density of CRF neurons in the PVH.
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Affiliation(s)
- Chia-Yen Wu
- Department of Physiology, Tzu Chi University, Hualien, Taiwan
| | - Hwei-Hsien Chen
- Center for Neuropsychiatric Research, National Health Research Institutes, Miaoli, Taiwan
| | - Pao-Luh Tao
- Center for Neuropsychiatric Research, National Health Research Institutes, Miaoli, Taiwan
| | - Zung Fan Yuan
- Department of Physiology, Tzu Chi University; Master Program in Biomedical Sciences, School of Medicine, Tzu Chi University, Hualien, Taiwan
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Hornburg KJ, Slosky LM, Cofer G, Cook J, Qi Y, Porkka F, Clark NB, Pires A, Petrella JR, White LE, Wetsel WC, Barak L, Caron MG, Johnson GA. Prenatal heroin exposure alters brain morphology and connectivity in adolescent mice. NMR IN BIOMEDICINE 2023; 36:e4842. [PMID: 36259728 PMCID: PMC10483958 DOI: 10.1002/nbm.4842] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 05/04/2022] [Revised: 09/30/2022] [Accepted: 10/05/2022] [Indexed: 06/16/2023]
Abstract
The United States is experiencing a dramatic increase in maternal opioid misuse and, consequently, the number of individuals exposed to opioids in utero. Prenatal opioid exposure has both acute and long-lasting effects on health and wellbeing. Effects on the brain, often identified at school age, manifest as cognitive impairment, attention deficit, and reduced scholastic achievement. The neurobiological basis for these effects is poorly understood. Here, we examine how in utero exposure to heroin affects brain development into early adolescence in a mouse model. Pregnant C57BL/6J mice received escalating doses of heroin twice daily on gestational days 4-18. The brains of offspring were assessed on postnatal day 28 using 9.4 T diffusion MRI of postmortem specimens at 36 μm resolution. Whole-brain volumes and the volumes of 166 bilateral regions were compared between heroin-exposed and control offspring. We identified a reduction in whole-brain volume in heroin-exposed offspring and heroin-associated volume changes in 29 regions after standardizing for whole-brain volume. Regions with bilaterally reduced standardized volumes in heroin-exposed offspring relative to controls include the ectorhinal and insular cortices. Regions with bilaterally increased standardized volumes in heroin-exposed offspring relative to controls include the periaqueductal gray, septal region, striatum, and hypothalamus. Leveraging microscopic resolution diffusion tensor imaging and precise regional parcellation, we generated whole-brain structural MRI diffusion connectomes. Using a dimension reduction approach with multivariate analysis of variance to assess group differences in the connectome, we found that in utero heroin exposure altered structure-based connectivity of the left septal region and the region that acts as a hub for limbic regulatory actions. Consistent with clinical evidence, our findings suggest that prenatal opioid exposure may have effects on brain morphology, connectivity, and, consequently, function that persist into adolescence. This work expands our understanding of the risks associated with opioid misuse during pregnancy and identifies biomarkers that may facilitate diagnosis and treatment.
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Affiliation(s)
- Kathryn J. Hornburg
- Department of Radiology, School of Medicine, Duke University; 311 Research Drive; Campus Box 3302; Durham, NC 27710 United States
| | - Lauren M. Slosky
- Department of Cell Biology, School of Medicine, Duke University; Campus Box 3709; Durham, NC 27710 United States
- Department of Pharmacology, University of Minnesota; 312 Church Street SE; 3-104 Nils Hasselmo Hall; Minneapolis, MN 55455 United States
| | - Gary Cofer
- Department of Radiology, School of Medicine, Duke University; 311 Research Drive; Campus Box 3302; Durham, NC 27710 United States
| | - James Cook
- Department of Radiology, School of Medicine, Duke University; 311 Research Drive; Campus Box 3302; Durham, NC 27710 United States
| | - Yi Qi
- Department of Radiology, School of Medicine, Duke University; 311 Research Drive; Campus Box 3302; Durham, NC 27710 United States
| | - Fiona Porkka
- Department of Cell Biology, School of Medicine, Duke University; Campus Box 3709; Durham, NC 27710 United States
| | - Nicholas B. Clark
- Department of Cell Biology, School of Medicine, Duke University; Campus Box 3709; Durham, NC 27710 United States
| | - Andrea Pires
- Department of Cell Biology, School of Medicine, Duke University; Campus Box 3709; Durham, NC 27710 United States
| | - Jeffrey R Petrella
- Department of Radiology, School of Medicine, Duke University; 311 Research Drive; Campus Box 3302; Durham, NC 27710 United States
| | - Leonard E. White
- Department of Neurology, School of Medicine, Duke University; Campus Box 2900; Durham, NC 27710 United States
| | - William C. Wetsel
- Department of Cell Biology, School of Medicine, Duke University; Campus Box 3709; Durham, NC 27710 United States
- Department of Psychiatry and Behavioral Sciences, School of Medicine, Duke University; Campus Box 102508; Durham, NC 27710 United States
- Department of Neurology, School of Medicine, Duke University; Campus Box 2900; Durham, NC 27710 United States
| | - Lawrence Barak
- Department of Cell Biology, School of Medicine, Duke University; Campus Box 3709; Durham, NC 27710 United States
| | - Marc G. Caron
- Department of Cell Biology, School of Medicine, Duke University; Campus Box 3709; Durham, NC 27710 United States
- Department of Neurology, School of Medicine, Duke University; Campus Box 2900; Durham, NC 27710 United States
| | - G. Allan Johnson
- Department of Radiology, School of Medicine, Duke University; 311 Research Drive; Campus Box 3302; Durham, NC 27710 United States
- Department of Biomedical Engineering, Pratt School of Engineering, Duke University; Campus Box 90281; Durham, NC 27708-0281 United States
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Simmons SC, Grecco GG, Atwood BK, Nugent FS. Effects of prenatal opioid exposure on synaptic adaptations and behaviors across development. Neuropharmacology 2023; 222:109312. [PMID: 36334764 PMCID: PMC10314127 DOI: 10.1016/j.neuropharm.2022.109312] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/09/2022] [Revised: 10/26/2022] [Accepted: 10/27/2022] [Indexed: 11/06/2022]
Abstract
In this review, we focus on prenatal opioid exposure (POE) given the significant concern for the mental health outcomes of children with parents affected by opioid use disorder (OUD) in the view of the current opioid crisis. We highlight some of the less explored interactions between developmental age and sex on synaptic plasticity and associated behavioral outcomes in preclinical POE research. We begin with an overview of the rich literature on hippocampal related behaviors and plasticity across POE exposure paradigms. We then discuss recent work on reward circuit dysregulation following POE. Additional risk factors such as early life stress (ELS) could further influence synaptic and behavioral outcomes of POE. Therefore, we include an overview on the use of preclinical ELS models where ELS exposure during key critical developmental periods confers considerable vulnerability to addiction and stress psychopathology. Here, we hope to highlight the similarity between POE and ELS on development and maintenance of opioid-induced plasticity and altered opioid-related behaviors where similar enduring plasticity in reward circuits may occur. We conclude the review with some of the limitations that should be considered in future investigations. This article is part of the Special Issue on 'Opioid-induced addiction'.
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Affiliation(s)
- Sarah C Simmons
- Department of Pharmacology and Molecular Therapeutics, School of Medicine, Uniformed Services University of the Health Sciences, Bethesda, MD, USA
| | - Greg G Grecco
- Department of Pharmacology & Toxicology, Indiana University School of Medicine, Indianapolis, IN, USA; Medical Scientist Training Program, Indiana University School of Medicine, Indianapolis, IN, 46202, USA
| | - Brady K Atwood
- Department of Pharmacology & Toxicology, Indiana University School of Medicine, Indianapolis, IN, USA; Stark Neurosciences Research Institute, Indiana University School of Medicine, Indianapolis, IN, 46202, USA
| | - Fereshteh S Nugent
- Department of Pharmacology and Molecular Therapeutics, School of Medicine, Uniformed Services University of the Health Sciences, Bethesda, MD, USA.
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Taylor M, Cheng AB, Hodkinson DJ, Afacan O, Zurakowski D, Bajic D. Body size and brain volumetry in the rat following prolonged morphine administration in infancy and adulthood. FRONTIERS IN PAIN RESEARCH 2023; 4:962783. [PMID: 36923651 PMCID: PMC10008895 DOI: 10.3389/fpain.2023.962783] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/06/2022] [Accepted: 01/20/2023] [Indexed: 02/28/2023] Open
Abstract
Background Prolonged morphine treatment in infancy is associated with a high incidence of opioid tolerance and dependence, but our knowledge of the long-term consequences of this treatment is sparse. Using a rodent model, we examined the (1) short- and (2) long-term effects of prolonged morphine administration in infancy on body weight and brain volume, and (3) we evaluated if subsequent dosing in adulthood poses an increased brain vulnerability. Methods Newborn rats received subcutaneous injections of either morphine or equal volume of saline twice daily for the first two weeks of life. In adulthood, animals received an additional two weeks of saline or morphine injections before undergoing structural brain MRI. After completion of treatment, structural T2-weigthed MRI images were acquired on a 7 T preclinical scanner (Bruker) using a RARE FSE sequence. Total and regional brain volumes were manually extracted from the MRI images using ITK-SNAP (v.3.6). Regions of interest included the brainstem, the cerebellum, as well as the forebrain and its components: the cerebral cortex, hippocampus, and deep gray matter (including basal ganglia, thalamus, hypothalamus, ventral tegmental area). Absolute (cm3) and normalized (as % total brain volume) values were compared using a one-way ANOVA with Tukey HSD post-hoc test. Results Prolonged morphine administration in infancy was associated with lower body weight and globally smaller brain volumes, which was not different between the sexes. In adulthood, females had lower body weights than males, but no difference was observed in brain volumes between treatment groups. Our results are suggestive of no long-term effect of prolonged morphine treatment in infancy with respect to body weight and brain size in either sex. Interestingly, prolonged morphine administration in adulthood was associated with smaller brain volumes that differed by sex only in case of previous exposure to morphine in infancy. Specifically, we report significantly smaller total brain volume of female rats on account of decreased volumes of forebrain and cortex. Conclusions Our study provides insight into the short- and long-term consequences of prolonged morphine administration in an infant rat model and suggests brain vulnerability to subsequent exposure in adulthood that might differ with sex.
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Affiliation(s)
- Milo Taylor
- Department of Anesthesiology, Critical Care and Pain Medicine, Boston Children’s Hospital, Boston, MA, United States
- Harvard College, Massachusetts Hall, Cambridge, MA, United States
| | - Anya Brooke Cheng
- Department of Anesthesiology, Critical Care and Pain Medicine, Boston Children’s Hospital, Boston, MA, United States
- Harvard College, Massachusetts Hall, Cambridge, MA, United States
| | - Duncan Jack Hodkinson
- Division of Clinical Neuroscience, School of Medicine, University of Nottingham, Nottingham, United Kingdom
- Sir Peter Mansfield Imaging Centre, School of Medicine, University of Nottingham, Nottingham, United Kingdom
- National Institute for Health Research (NIHR), Nottingham Biomedical Research Center, Queens Medical Center, Nottingham, United Kingdom
- Versus Arthritis Pain Centre, University of Nottingham, Nottingham, United Kingdom
| | - Onur Afacan
- Department of Radiology, Boston Children’s Hospital, Boston, MA, United States
- Harvard Medical School, Boston, MA, United States
| | - David Zurakowski
- Department of Anesthesiology, Critical Care and Pain Medicine, Boston Children’s Hospital, Boston, MA, United States
- Harvard Medical School, Boston, MA, United States
| | - Dusica Bajic
- Department of Anesthesiology, Critical Care and Pain Medicine, Boston Children’s Hospital, Boston, MA, United States
- Harvard Medical School, Boston, MA, United States
- Correspondence: Dusica Bajic
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7
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Borrelli KN, Yao EJ, Yen WW, Phadke RA, Ruan QT, Chen MM, Kelliher JC, Langan CR, Scotellaro JL, Babbs RK, Beierle JC, Logan RW, Johnson WE, Wachman EM, Cruz-Martín A, Bryant CD. Sex Differences in Behavioral and Brainstem Transcriptomic Neuroadaptations following Neonatal Opioid Exposure in Outbred Mice. eNeuro 2021; 8:ENEURO.0143-21.2021. [PMID: 34479978 PMCID: PMC8454922 DOI: 10.1523/eneuro.0143-21.2021] [Citation(s) in RCA: 11] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2021] [Revised: 05/02/2021] [Accepted: 08/25/2021] [Indexed: 12/13/2022] Open
Abstract
The opioid epidemic led to an increase in the number of neonatal opioid withdrawal syndrome (NOWS) cases in infants born to opioid-dependent mothers. Hallmark features of NOWS include weight loss, severe irritability, respiratory problems, and sleep fragmentation. Mouse models provide an opportunity to identify brain mechanisms that contribute to NOWS. Neonatal outbred Swiss Webster Cartworth Farms White (CFW) mice were administered morphine (15 mg/kg, s.c.) twice daily from postnatal day 1 (P1) to P14, an approximation of the third trimester of human gestation. Female and male mice underwent behavioral testing on P7 and P14 to determine the impact of opioid exposure on anxiety and pain sensitivity. Ultrasonic vocalizations (USVs) and daily body weights were also recorded. Brainstems containing pons and medulla were collected during morphine withdrawal on P14 for RNA sequencing. Morphine induced weight loss from P2 to P14, which persisted during adolescence (P21) and adulthood (P50). USVs markedly increased at P7 in females, emerging earlier than males. On P7 and P14, both morphine-exposed female and male mice displayed hyperalgesia on the hot plate and tail-flick assays, with females showing greater hyperalgesia than males. Morphine-exposed mice exhibited increased anxiety-like behavior in the open-field arena on P21. Transcriptome analysis of the brainstem, an area implicated in opioid withdrawal and NOWS, identified pathways enriched for noradrenergic signaling in females and males. We also found sex-specific pathways related to mitochondrial function and neurodevelopment in females and circadian entrainment in males. Sex-specific transcriptomic neuroadaptations implicate unique neurobiological mechanisms underlying NOWS-like behaviors.
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Affiliation(s)
- Kristyn N Borrelli
- Laboratory of Addiction Genetics, Departments of Pharmacology and Experimental Therapeutics and Psychiatry, Boston University School of Medicine, Boston, Massachusetts 02118
- Graduate Program for Neuroscience, Boston University, Boston, Massachusetts 02118
- Transformative Training Program in Addiction Science, Boston University, Boston, Massachusetts 02118
- NIGMS Training Program in Biomolecular Pharmacology, Boston University School of Medicine, Boston, Massachusetts 02118
| | - Emily J Yao
- Laboratory of Addiction Genetics, Departments of Pharmacology and Experimental Therapeutics and Psychiatry, Boston University School of Medicine, Boston, Massachusetts 02118
| | - William W Yen
- Neurobiology Section, Department of Biology, Boston University, Boston, Massachusetts 02215
| | - Rhushikesh A Phadke
- Neurobiology Section, Department of Biology, Boston University, Boston, Massachusetts 02215
- Molecular Biology, Cell Biology, and Biochemistry (MCBB), Boston University, Boston, Massachusetts 02215
| | - Qiu T Ruan
- Laboratory of Addiction Genetics, Departments of Pharmacology and Experimental Therapeutics and Psychiatry, Boston University School of Medicine, Boston, Massachusetts 02118
- Transformative Training Program in Addiction Science, Boston University, Boston, Massachusetts 02118
- NIGMS Training Program in Biomolecular Pharmacology, Boston University School of Medicine, Boston, Massachusetts 02118
| | - Melanie M Chen
- Laboratory of Addiction Genetics, Departments of Pharmacology and Experimental Therapeutics and Psychiatry, Boston University School of Medicine, Boston, Massachusetts 02118
| | - Julia C Kelliher
- Laboratory of Addiction Genetics, Departments of Pharmacology and Experimental Therapeutics and Psychiatry, Boston University School of Medicine, Boston, Massachusetts 02118
| | - Carly R Langan
- Laboratory of Addiction Genetics, Departments of Pharmacology and Experimental Therapeutics and Psychiatry, Boston University School of Medicine, Boston, Massachusetts 02118
| | - Julia L Scotellaro
- Laboratory of Addiction Genetics, Departments of Pharmacology and Experimental Therapeutics and Psychiatry, Boston University School of Medicine, Boston, Massachusetts 02118
- Undergraduate Research Opportunity Program, Boston University, Boston, Massachusetts 02118
| | - Richard K Babbs
- Laboratory of Addiction Genetics, Departments of Pharmacology and Experimental Therapeutics and Psychiatry, Boston University School of Medicine, Boston, Massachusetts 02118
| | - Jacob C Beierle
- Laboratory of Addiction Genetics, Departments of Pharmacology and Experimental Therapeutics and Psychiatry, Boston University School of Medicine, Boston, Massachusetts 02118
- Transformative Training Program in Addiction Science, Boston University, Boston, Massachusetts 02118
- NIGMS Training Program in Biomolecular Pharmacology, Boston University School of Medicine, Boston, Massachusetts 02118
| | - Ryan W Logan
- Laboratory of Sleep, Rhythms, and Addiction, Department of Pharmacology and Experimental Therapeutics, Boston University School of Medicine, Boston, Massachusetts 02118
- Center for Systems Neurogenetics of Addiction, The Jackson Laboratory, Bar Harbor, Maine 04609
| | - William Evan Johnson
- Department of Medicine, Computational Biomedicine, Boston University School of Medicine, Boston, Massachusetts 02118
| | - Elisha M Wachman
- Department of Pediatrics, Boston University School of Medicine, Boston Medical Center, Boston, Massachusetts 02118
| | - Alberto Cruz-Martín
- Neurobiology Section, Department of Biology, Boston University, Boston, Massachusetts 02215
| | - Camron D Bryant
- Laboratory of Addiction Genetics, Departments of Pharmacology and Experimental Therapeutics and Psychiatry, Boston University School of Medicine, Boston, Massachusetts 02118
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Yazdanfar N, Farnam A, Sadigh-Eteghad S, Mahmoudi J, Sarkaki A. Enriched environment and social isolation differentially modulate addiction-related behaviors in male offspring of morphine-addicted dams: The possible role of μ-opioid receptors and ΔFosB in the brain reward pathway. Brain Res Bull 2021; 170:98-105. [PMID: 33592274 DOI: 10.1016/j.brainresbull.2021.02.005] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/23/2020] [Revised: 01/19/2021] [Accepted: 02/02/2021] [Indexed: 12/20/2022]
Abstract
Prenatal opioids exposure negatively affects the neurobehavioral abilities of children born from dependence dams. Adolescent housing conditions can buffer the detrimental impacts of early life experiences or contradictory can worsen individual psychosocial functions. The present study investigated the effects of maternal morphine dependence and different rearing conditions on behaviors and protein expression in brain reward circuits of male pups. Female Wistar rats a week before conception, during pregnancy and lactation were injected twice daily with escalating doses of morphine or saline. On a postnatal day 21, male pups were weaned and subjected to three different environments for two months: standard (STD), isolated (ISO), or enriched environment (EE). The anxiety and drug-related reward were measured using elevated plus maze, open field test, and conditioned place preference. Western blotting was used to determine the protein level of ΔFosB and μ-opioid receptor proteins in the striatum and the midbrain of male offspring, respectively. Results showed that maternal morphine administration dramatically increased anxiety-like and morphine place preference behaviors in offspring. Also, ISO condition aggravated these behavioral outcomes. While, rearing in EE could attenuate anxiety and morphine conditioning in pups. At molecular levels, maternal morphine exposure and social isolation markedly increased both of ΔFosB and μ-opioid receptor proteins expression. However, rearing in the EE declined ΔFosB protein expression. Together, these findings help to elucidate long lasting impacts of early life morphine exposure and rearing environment on the behavioral and molecular profile of addicted individuals.
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Affiliation(s)
- Neda Yazdanfar
- Neurosciences Research Center, Tabriz University of Medical Sciences, Tabriz, Iran; Department of Neuroscience, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Alireza Farnam
- Research Center of Psychiatry and Behavioral Sciences, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Saeed Sadigh-Eteghad
- Neurosciences Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Javad Mahmoudi
- Neurosciences Research Center, Tabriz University of Medical Sciences, Tabriz, Iran.
| | - Alireza Sarkaki
- The Persian Gulf Physiology Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran; Department of Physiology, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
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Punamäki RL, Flykt M, Belt R, Lindblom J. Maternal substance use disorder predicting children's emotion regulation in middle childhood: the role of early mother-infant interaction. Heliyon 2021; 7:e06728. [PMID: 33898837 PMCID: PMC8055553 DOI: 10.1016/j.heliyon.2021.e06728] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2020] [Revised: 02/04/2021] [Accepted: 04/01/2021] [Indexed: 12/17/2022] Open
Abstract
Background Maternal prenatal substance use disorder (SUD) represents a dual risk for child wellbeing due to teratogenic impacts and parenting problems often inherent in SUD. One potential mechanism transferring this risk is altered development of children's emotion regulation (ER). The present study examines how mother's prenatal SUD and early mother-infant interaction quality predict children's ER in middle childhood. Method The participants were 52 polysubstance using mothers and 50 non-users and their children. First-year mother-infant interaction quality was assessed with the Emotional Availability (EA) Scales and children's ER with the Children's Emotion Management Scales (CEMS), and its parent version (P-CEMS) at 8–12 years. Results Mother's prenatal SUD predicted a low level of children's adaptive ER strategies, whereas early mother-infant interaction problems predicted a high level of emotion dysregulation. The dyadic interaction also mediated the effect of SUD on emotion dysregulation. In the SUD group, more severe substance use predicted high emotion inhibition. Conclusion Early mother-infant interaction quality is critical in shaping children's ER, also in middle-childhood. Interventions aimed for mothers with prenatal SUD should integrate parenting components to support the optimal development of multiply vulnerable children.
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Affiliation(s)
- R-L Punamäki
- Faculty of Social Sciences / Psychology, Tampere University, Tampere, Finland
| | - M Flykt
- Faculty of Social Sciences / Psychology, Tampere University, Tampere, Finland.,Department of Psychology and Logopedics, Faculty of Medicine, University of Helsinki, Helsinki, Finland
| | | | - J Lindblom
- Faculty of Social Sciences / Psychology, Tampere University, Tampere, Finland.,Department of Clinical Medicine, Faculty of Medicine, University of Turku, Turku, Finland
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10
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Vassoler FM, Byrnes EM. Transgenerational effects on anxiety-like behavior following adolescent morphine exposure in female rats. Behav Brain Res 2021; 406:113239. [PMID: 33731277 DOI: 10.1016/j.bbr.2021.113239] [Citation(s) in RCA: 7] [Impact Index Per Article: 2.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/16/2020] [Revised: 02/24/2021] [Accepted: 03/10/2021] [Indexed: 01/15/2023]
Abstract
Global opioid use and misuse remains high, despite efforts to decrease rates of prescribing and diversion. Chronic exposure to opioids, particularly during critical periods of development, can lead to long-lasting effects, including effects that may extend to future generations. Using a rodent model, we have demonstrated significant transgenerational effects of female adolescent morphine exposure, despite the absence of in utero drug exposure. While these effects have been observed in both sexes, effects on anxiety-like behavior were only observed in F1 females. The current study was designed to examine both inter- and transgenerational effects of adolescent morphine exposure on anxiety-like behavior. Female Sprague Dawley rats were administered increasing doses of morphine (5-25 mg/kg s.c.) or saline for 10 days during adolescence (PND30-39). Adult diestrous female offspring (MORF1 or SALF1) and grand offspring (F2) were tested for anxiety-like behavior using the elevated plus maze (EPM). F1 females cross-fostered to donor mothers were also examined. The results show that MORF1 and MORF2 females spend significantly more time on the open arms of the EPM compared to SALF1 controls, an effect that persisted in cross-fostered females. Additional studies demonstrate that this effect is estrous cycle dependent, as decreased anxiety-like behavior was observed in diestrus, while increased anxiety-like behavior was observed in estrus. These behavioral effects were not associated with any differences in circulating corticosterone either at baseline or following EPM testing. Thus, female adolescent morphine exposure alters the regulation of anxiety-like behavior in an estrous-dependent manner and this effect persists in the F2 generation.
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Affiliation(s)
- Fair M Vassoler
- Department of Biomedical Sciences, Cummings School of Veterinary Medicine, Tufts University, 200 Westboro Road, North Grafton, MA, 01536, United States
| | - Elizabeth M Byrnes
- Department of Biomedical Sciences, Cummings School of Veterinary Medicine, Tufts University, 200 Westboro Road, North Grafton, MA, 01536, United States.
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11
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Yazdanfar N, Ali Mard S, Mahmoudi J, Bakhtiari N, Sarkaki A, Farnam A. Maternal Morphine Exposure and Post-Weaning Social Isolation Impair Memory and Ventral Striatum Dopamine System in Male Offspring: Is an Enriched Environment Beneficial? Neuroscience 2021; 461:80-90. [PMID: 33662528 DOI: 10.1016/j.neuroscience.2021.02.024] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2020] [Revised: 02/18/2021] [Accepted: 02/19/2021] [Indexed: 12/19/2022]
Abstract
Maternal opioids abuse has some deleterious consequences on next generations. Besides, children's rearing conditions can affect the behavioral states and brain plasticity in their later life. In the present study, we investigated the effects of maternal morphine (MOR) treatment and post-weaning rearing conditions on memory, pain threshold, and the ventral striatum dopaminergic activity in male offspring. Female Wistar rats were treated twice daily either with escalating doses of MOR or with normal saline (NS) one week before mating, during pregnancy and lactation. After weaning, the male pups were assigned to six groups and then raised for an 8-week period under three different conditions: standard (STD), isolated (ISO) or enriched environment (EE). The behavioral tests, including passive avoidance task, novel object recognition, and tail-flick test, were also performed. Moreover, the ventral striatum dopamine's content (DA), mRNA expressions of dopamine receptor 1(D1R) and dopamine receptor 2 (D2R), and dopamine transporter (DAT) were evaluated. The obtained data showed that maternal MOR exposure and post-weaning social isolation could dramatically impair memory in offspring, while EE could reverse these adverse outcomes. Moreover, results of tail flick latency indicated the increased pain threshold in EE animals. At molecular level, maternal MOR injections and social isolation reduced DA levels and altered expressions of D1R, D2R, and DAT within the ventral striatum of these male offspring. However, post-weaning EE partially buffered these changes. Our finding signified the effects of maternal MOR exposure and social isolation on the behaviors and neurochemistry of brain in next generation, and it also provided evidence on reversibility of these alterations following EE.
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Affiliation(s)
- Neda Yazdanfar
- Department of Neuroscience and Cognition, Faculty of Advanced Medical Sciences, Tabriz University of Medical Sciences, Tabriz, Iran; Neurosciences Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Seyed Ali Mard
- The Persian Gulf Physiology Research Center, Medical Basic Sciences Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran; Department of Physiology, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Javad Mahmoudi
- Neurosciences Research Center, Tabriz University of Medical Sciences, Tabriz, Iran
| | - Nima Bakhtiari
- Pain Research Center, Imam Khomeini Hospital, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran
| | - Alireza Sarkaki
- The Persian Gulf Physiology Research Center, Medical Basic Sciences Research Institute, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran; Department of Physiology, Faculty of Medicine, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
| | - Alireza Farnam
- Research Center of Psychiatry and Behavioral Sciences, Tabriz University of Medical Sciences, Tabriz, Iran.
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12
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Abstract
The inheritance of substance abuse, including opioid abuse, may be influenced by genetic and non-genetic factors related to the environment, such as stress and socioeconomic status. These non-genetic influences on the heritability of a trait can be attributed to epigenetics. Epigenetic inheritance can result from modifications passed down from the mother, father, or both, resulting in either maternal, paternal, or parental epigenetic inheritance, respectively. These epigenetic modifications can be passed to the offspring to result in multigenerational, intergenerational, or transgenerational inheritance. Human and animal models of opioid exposure have shown generational effects that result in molecular, developmental, and behavioral alterations in future generations.
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13
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Yarahmadzehi S, Fanaei H, Mirshekar MA, Atashpanjeh AR. Opium consumption exerts protective effect against cerebral ischemia through reducing inflammation and enhancing antioxidant defense in male rats. ACTA ACUST UNITED AC 2020. [DOI: 10.1016/j.npbr.2020.05.005] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/18/2023]
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14
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Beauchamp KG, Lowe J, Schrader RM, Shrestha S, Aragón C, Moss N, Stephen JM, Bakhireva LN. Self-regulation and emotional reactivity in infants with prenatal exposure to opioids and alcohol. Early Hum Dev 2020; 148:105119. [PMID: 32679473 PMCID: PMC7478127 DOI: 10.1016/j.earlhumdev.2020.105119] [Citation(s) in RCA: 8] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/19/2020] [Revised: 05/20/2020] [Accepted: 06/29/2020] [Indexed: 12/12/2022]
Abstract
BACKGROUND Infants with prenatal substance exposure are at increased risk for developmental problems, with self-regulatory challenges being some of the most pronounced. The current study aimed to investigate the extent to which prenatal substance exposure (alcohol, opioids) impacts infant self-regulation during a relational stressor and the association between self-regulation and infant affect. METHODS Participants were 100 mother-child dyads recruited prenatally (Mean = 23.8 gestational weeks) and completed the Still Face Paradigm (SFP) when infants were 5 to 8 months of age (Mean = 6.9 months) as part of an ENRICH prospective birth cohort study. Based on prospective repeated assessment of maternal substance use in pregnancy, infants were grouped into: 1) Unexposed controls; 2) Alcohol-exposed; 3) Opioid-exposed due to maternal use of medications for opioid use disorder (MOUD) with or without other opioids; 4) MOUD and alcohol. Infant stress reactivity (negative affect) and self-regulation were assessed during the validated 5-episode SFP. Mixed effects linear models were used to analyze differences in the percent of self-regulation and percent of negative affect among the study groups across SFP episodes, as well as the group-by-self-regulation interaction with respect to infant negative affect. RESULTS The MOUD+Alcohol group demonstrated significantly lower self-regulation at baseline compared to controls (p < 0.05). There was a significant group-by-self-regulation interaction (p = 0.028). Higher self-regulation was associated with lower negative affect across SFP episodes in the MOUD+Alcohol group (p = 0.025) but not other groups. CONCLUSION Self-regulation skills are particularly important for emotional modulation in infants with prenatal polysubstance exposure, highlighting the development of these skills as a promising intervention target.
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Affiliation(s)
- Kathryn G Beauchamp
- Substance Use Research and Education (SURE) Center, College of Pharmacy, University of New Mexico Health Sciences Center, Albuquerque, NM 87131, USA
| | - Jean Lowe
- Department of Pediatrics, University of New Mexico Health Sciences Center, Albuquerque, NM 87131, USA
| | | | - Shikhar Shrestha
- Department of Public Health and Community Medicine, Tufts University, Boston, MA 02155, USA
| | - Crystal Aragón
- Department of Pediatrics, University of New Mexico Health Sciences Center, Albuquerque, NM 87131, USA
| | - Natalia Moss
- Department of Psychiatry, University of California Los Angeles, Los Angeles, CA 90024, USA
| | | | - Ludmila N Bakhireva
- Substance Use Research and Education (SURE) Center, College of Pharmacy, University of New Mexico Health Sciences Center, Albuquerque, NM 87131, USA.
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15
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Prenatal exposure to methadone or buprenorphine and long-term outcomes: A meta-analysis. Early Hum Dev 2020; 143:104997. [PMID: 32146140 DOI: 10.1016/j.earlhumdev.2020.104997] [Citation(s) in RCA: 31] [Impact Index Per Article: 7.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/14/2020] [Revised: 02/18/2020] [Accepted: 02/18/2020] [Indexed: 01/13/2023]
Abstract
AIM To combine meta-analyses of multiple long-term outcomes in children prenatally exposed to methadone or buprenorphine through their mothers' Opioid maintenance therapy (OMT) with a systematic review of similar outcomes in experimental animals. METHOD The Medline, Embase, Web of Science, CINAHL, Cochrane and Epistemonikos databases were searched through August 30, 2018. Clinical studies measuring effects on cognitive, behavioral or visual outcomes in 3 months or older children prenatally exposed to OMT and control group(s) were included for meta-analyses. Experimental animal studies with similar exposures and outcomes were included in a systematic review. The three authors independently performed abstract screenings and full-text reviews, and extracted the data. One author performed the meta-analyses. RESULTS The pooled results of the meta-analyses showed worse cognitive, psychomotor, behavioral, attentional and executive functioning, and affected vision in children born to mothers who were in OMT during pregnancy compared to children without prenatal drug exposure (overall effect size = 0.49, 95% confidence interval = 0.38, 0.59, p < 0.00001). Many of the experimental animal studies showed impaired outcomes after prenatal exposure to methadone or buprenorphine. The clinical results may be biased, e.g., with the OMT group having more concurrent risk factors than the unexposed comparison group. There are few studies of older children. CONCLUSION Children born to mothers in OMT show worse outcomes for a number of different behaviors and impaired vision compared to children born to nonusers. Experimental animal studies indicate that there might be a causal relationship between prenatal methadone or buprenorphine exposure and subsequent negative outcomes.
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16
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Bornavard M, Fanaei H, Mirshekar MA, Farajian Mashhadi F, Atashpanjeh A. Morphine consumption during pregnancy exacerbates neonatal hypoxia-ischemia injury in rats. Int J Dev Neurosci 2020; 80:96-105. [PMID: 31981237 DOI: 10.1002/jdn.10008] [Citation(s) in RCA: 6] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2019] [Revised: 01/08/2020] [Accepted: 01/19/2020] [Indexed: 12/16/2022] Open
Abstract
OBJECTIVE Hypoxia-Ischemia (HI) is the most common cause of death and disability in human infants. The use of opiate in pregnant women affects their children. The aim of this study was to evaluate the effect of morphine consumption during pregnancy and lactation on vulnerability to neonatal HI in rats. MATERIALS AND METHODS Female Wistar rats were randomly assigned into two groups: Group 1-Rats that did not receive any treatment during pregnancy and lactation and Group 2-Rats that received morphine during pregnancy and lactation. After delivery, male offspring were divided into four groups including: (a) SHAM, (b) SHAM/Morphine (SHAM/MO), (c) HI, (d) HI/Morphine (HI/MO). Seven days after HI induction, neurobehavioral tests were performed, and then, brain tissue was taken from the skull to measure cerebral edema, infarct volume, inflammatory factors, oxidative stress, and brain-derived neurotrophic factor (BDNF). RESULTS Total antioxidant capacity (TAC) and BDNF levels in the HI/MO group were significantly lower than HI and SHAM groups. TNF-α, C-reactive protein and total oxidant capacity levels in the HI/MO group were significantly higher than HI and SHAM groups. Cerebral edema and infarct volume in the HI/MO group were significantly higher than the HI group. CONCLUSION Based on the results, morphine consumption during pregnancy and lactation enhanced the deleterious effects of HI injury in pups.
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Affiliation(s)
- Morad Bornavard
- Department of Physiology, School of Medicine, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Hamed Fanaei
- Pregnancy Health Research Center, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Mohammad Ali Mirshekar
- Department of Physiology, School of Medicine, Clinical Immunology Research Center, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Farzaneh Farajian Mashhadi
- Cellular and Molecular Research Center, Department of Pharmacology, School of Medicine, Zahedan University of Medical Sciences, Zahedan, Iran
| | - Alireza Atashpanjeh
- Department of English Language, School of Medicine, Zahedan University of Medical Sciences, Zahedan, Iran
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17
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Franks AL, Berry KJ, DeFranco DB. Prenatal drug exposure and neurodevelopmental programming of glucocorticoid signalling. J Neuroendocrinol 2020; 32:e12786. [PMID: 31469457 PMCID: PMC6982551 DOI: 10.1111/jne.12786] [Citation(s) in RCA: 20] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/29/2019] [Revised: 08/25/2019] [Accepted: 08/27/2019] [Indexed: 12/21/2022]
Abstract
Prenatal neurodevelopment is dependent on precise functioning of multiple signalling pathways in the brain, including those mobilised by glucocorticoids (GC) and endocannabinoids (eCBs). Prenatal exposure to drugs of abuse, including opioids, alcohol, cocaine and cannabis, has been shown to not only impact GC signalling, but also alter functioning of the hypothalamic-pituitary-adrenal (HPA) axis. Such exposures can have long-lasting neurobehavioural consequences, including alterations in the stress response in the offspring. Furthermore, cannabis contains cannabinoids that signal via the eCB pathway, which is linked to some components of GC signalling in the adult brain. Given that GCs are frequently used in pregnancy to prevent complications of prematurity, and also that rates of cannabis use in pregnancy are increasing, the likelihood of foetal co-exposure to these compounds is high and may have additional implications for long-term neurodevelopment. Here, we present a discussion of GC signalling and the HPA axis, as well as the effects of prenatal drug exposure on these pathways and the stress response, and we explore the interactions between GC and EC signalling in the developing brain and potential for neurodevelopmental consequences.
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Affiliation(s)
- Alexis L Franks
- Department of Pediatrics, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
| | - Kimberly J Berry
- Center for Neuroscience at the University of Pittsburgh, Pittsburgh, PA, USA
| | - Donald B DeFranco
- Center for Neuroscience at the University of Pittsburgh, Pittsburgh, PA, USA
- Department of Pharmacology and Chemical Biology and Neuroscience, University of Pittsburgh School of Medicine, Pittsburgh, PA, USA
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18
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Aghighi F, Mohammadifar M, Banafsheh H, Salami M, Talaei SA. Behavioral and electrophysiological aspects of cognition in neonate rats lactated by morphine addicted mothers. IRANIAN JOURNAL OF BASIC MEDICAL SCIENCES 2019; 22:1059-1064. [PMID: 31807250 PMCID: PMC6880524 DOI: 10.22038/ijbms.2019.36892.8789] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/06/2022]
Abstract
Objectives In addition to genetic factors, environmental phenomena during postnatal age highly affect development and, in turn, function of the brain. The present work evaluates if morphine consumption during lactation period influences the spatial performances and synaptic plasticity in rats at neonatal period of age. Materials and Methods Three groups of mothers were subcutaneously administered by 5 (M5), 10 (M10) or 20 (M20) mg/kg morphine every 12 hours during the lactation period. At 45 days old, their offspring were introduced to Morris water maze for assessment of spatial learning and memory. Basic field excitatory post-synaptic potentials (fEPSPs) were recorded in the CA1 area of hippocampus and, then, long term potentiation (LTP) was induced by tetanic stimulation. Results We found that the M10 and M20 rats spent more time and traveled longer distance to find the hidden platform of maze when compared to the control animals (P<0.05 for all comparisons). Similarly, these two morphine-exposed groups were inferior in the memory consolidation compared to their control counterparts. Comparing control and M20 rats revealed that morphine exposure decreases the mean amplitude and slope 10-90% of fEPSPs about 30 percent (P<0.001 for both comparisons) and inhibits the LTP induction in the CA1 area circuits. Conclusion The present study provides behavioral and electrophysiological proofs for negative effect of morphine on the hippocampal-related function in the neonatally morphine-exposed rats.
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Affiliation(s)
- Fatemeh Aghighi
- Physiology Research Center, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran
| | - Mojgan Mohammadifar
- Physiology Research Center, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran
| | - Hamidreza Banafsheh
- Physiology Research Center, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran
| | - Mahmoud Salami
- Physiology Research Center, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran
| | - Sayyed Alireza Talaei
- Physiology Research Center, Institute for Basic Sciences, Kashan University of Medical Sciences, Kashan, Iran
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Wallin CM, Bowen SE, Roberge CL, Richardson LM, Brummelte S. Gestational buprenorphine exposure: Effects on pregnancy, development, neonatal opioid withdrawal syndrome, and behavior in a translational rodent model. Drug Alcohol Depend 2019; 205:107625. [PMID: 31706250 DOI: 10.1016/j.drugalcdep.2019.107625] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/04/2019] [Revised: 08/27/2019] [Accepted: 09/16/2019] [Indexed: 12/18/2022]
Abstract
BACKGROUND The opioid crisis has led to an increased number of pregnant opioid-dependent women receiving opioid-maintenance therapy (e.g. buprenorphine, BUP), but little is known about the consequences of gestational BUP exposure on pregnancy outcomes, maternal care, or offspring development. METHODS Our translational rodent model began BUP exposure to adult female rats (N = 30) at least 7 days before conception and continued throughout the postpartum period. Both therapeutic low-dose (BUP-LD, 0.3 mg/kg, s.c.) and overexposure high-dose (BUP-HD, 1.0 mg/kg) doses of BUP were compared to saline control. Female rats were bred in house with drug-naïve adult male rats. The day after parturition, litters were culled to 5 males/5 females and assigned randomly to various behavioral tests and assessed either neonates or adolescents. Litter characteristics, maternal caregiving, Neonatal Opioid Withdrawal Syndrome (NOWS), offspring development and adolescent behaviors were evaluated. RESULTS BUP-LD decreased maternal care, delayed offspring development, decreased offspring body weight, length, temperature, and pain sensitivity (p's < .05). BUP-HD drastically reduced maternal care and offspring survival, altered litter characteristics, and increased NOWS (p's < .05). CONCLUSION These results demonstrate that the therapeutic BUP-LD in rats was relatively safe with subtle effects on maternal care and rodent offspring. However, overexposure BUP-HD in rats produced NOWS and compromised maternal caregiving as well as rodent offspring survival. More research is critical to validate the translational implication of these findings for human opioid-dependent mothers maintained on BUP-maintenance therapy.
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Affiliation(s)
- Chela M Wallin
- Department of Psychology, Wayne State University, Detroit, MI, 48202, USA.
| | - Scott E Bowen
- Department of Psychology, Wayne State University, Detroit, MI, 48202, USA.
| | - Chelsea L Roberge
- Department of Psychology, Wayne State University, Detroit, MI, 48202, USA.
| | | | - Susanne Brummelte
- Department of Psychology, Wayne State University, Detroit, MI, 48202, USA.
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Nygaard E, Slinning K, Moe V, Fjell A, Walhovd KB. Mental health in youth prenatally exposed to opioids and poly-drugs and raised in permanent foster/adoptive homes: A prospective longitudinal study. Early Hum Dev 2019; 140:104910. [PMID: 31675665 DOI: 10.1016/j.earlhumdev.2019.104910] [Citation(s) in RCA: 11] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/21/2019] [Revised: 10/18/2019] [Accepted: 10/21/2019] [Indexed: 12/18/2022]
Abstract
BACKGROUND Little is known about the mental health of prenatally opioid- and polydrug-exposed youth raised in foster/adoptive families. AIM To compare mental health problems among two groups of youth, one prenatally drug-exposed group with participants who were mainly placed in permanent foster or adoptive homes in early infancy and a group without known prenatal risk factors who were raised by their birth parents. METHODS The sample consisted of 45 drug-exposed and 48 nonexposed youth between 17 and 22 years old from an original sample of 136 followed since birth. An extended version of the Mini International Neuropsychiatric Interview was used to assess lifetime psychiatric disorder, and participants completed the Achenbach Adult Self-Report form and Cantril's Ladder of Life Satisfaction Scale. RESULTS A higher proportion of the youth in the drug-exposed group had lifetime experiences with major depressive episodes, alcohol abuse and attention deficit, hyperactivity disorder (OR > 3, p ≤ .030). They scored higher on the aggressive behavior scale, had more sexual partners and were younger at their sexual debut (p ≤ .030). There were no group differences in current self-reported satisfaction with life. CONCLUSION Youth exposed to drugs prenatally continue to represent a risk group despite early placement in permanent foster and adoptive homes. The factors contributing to this elevated risk may be multifaceted and involve adverse prenatal conditions including but not limited to drug exposure, genetics, and postnatal environmental conditions. The results highlight the need for longitudinal follow-up in the transition to adulthood as well as qualified service provision for these youth and their families.
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Affiliation(s)
- Egil Nygaard
- Department of Psychology, University of Oslo, Postbox 1094 Blindern, 0317 Oslo, Norway; Center for Child and Adolescent Mental Health, Eastern and Southern Norway (RBUP), Postbox 4623 Nydalen, 0405 Oslo, Norway.
| | - Kari Slinning
- Department of Psychology, University of Oslo, Postbox 1094 Blindern, 0317 Oslo, Norway; Center for Child and Adolescent Mental Health, Eastern and Southern Norway (RBUP), Postbox 4623 Nydalen, 0405 Oslo, Norway.
| | - Vibeke Moe
- Department of Psychology, University of Oslo, Postbox 1094 Blindern, 0317 Oslo, Norway; Center for Child and Adolescent Mental Health, Eastern and Southern Norway (RBUP), Postbox 4623 Nydalen, 0405 Oslo, Norway.
| | - Anders Fjell
- Department of Psychology, University of Oslo, Postbox 1094 Blindern, 0317 Oslo, Norway.
| | - Kristine B Walhovd
- Department of Psychology, University of Oslo, Postbox 1094 Blindern, 0317 Oslo, Norway.
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Sadat-Shirazi MS, Monfared Neirizi N, Matloob M, Safarzadeh M, Behrouzi M, Rajabpoor Dehdashti A, Ashabi G, Zarrindast MR. Possible involvement of nucleus accumbens D1-like dopamine receptors in the morphine-induced condition place preference in the offspring of morphine abstinent rats. Life Sci 2019; 233:116712. [DOI: 10.1016/j.lfs.2019.116712] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/04/2019] [Revised: 07/22/2019] [Accepted: 07/30/2019] [Indexed: 12/15/2022]
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Managing Procedural Pain in the Neonate Using an Opioid-sparing Approach. Clin Ther 2019; 41:1701-1713. [PMID: 31431300 DOI: 10.1016/j.clinthera.2019.07.014] [Citation(s) in RCA: 22] [Impact Index Per Article: 4.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/03/2019] [Revised: 07/15/2019] [Accepted: 07/16/2019] [Indexed: 12/20/2022]
Abstract
PURPOSE Pain in the neonate is often challenging to assess but important to control. Physicians often must balance the need for optimal pain control with the need to minimize oversedation and prolonged opioid use. Both inadequate pain control and overuse of opioids can have long-term consequences, including poor developmental outcomes. The aim of this review is to introduce a comprehensive approach to pain management for physicians, nurses, and surgeons caring for critically ill neonates, focusing on nonopioid alternatives to manage procedural pain. FINDINGS After review, categories of opioid-sparing interventions identified included (1) nonopioid pharmacologic agents, (2) local and regional anesthesia, and (3) nonpharmacologic alternatives. Nonopioid pharmacologic agents identified for neonatal use included acetaminophen, NSAIDs, dexmedetomidine, and gabapentin. Local and regional anesthesia included neuraxial blockade (spinals and epidurals), subcutaneous injections, and topical anesthesia. Nonpharmacologic agents uniquely available in the neonatal setting included skin-to-skin care, facilitated tucking, sucrose, breastfeeding, and nonnutritive sucking. IMPLICATIONS The use of various pharmacologic and interventional treatments for neonatal pain management allows for the incorporation of opioid-sparing techniques in neonates who are already at risk for poor neurodevelopmental outcomes. A multifactorial approach to pain control is paramount to optimize periprocedural comfort and to minimize the negative sequelae of uncontrolled pain in the neonate.
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Kondili E, Duryea DG. The role of mother-infant bond in neonatal abstinence syndrome (NAS) management. Arch Psychiatr Nurs 2019; 33:267-274. [PMID: 31227079 DOI: 10.1016/j.apnu.2019.02.003] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/30/2018] [Revised: 02/10/2019] [Accepted: 02/17/2019] [Indexed: 01/09/2023]
Abstract
The opioid crisis affects pregnant women and their infants. In the past two decades, the number of infants born with neonatal abstinence syndrome (NAS) has quadrupled causing the cost of healthcare expenditures to climb sharply. Pharmacological and non-pharmacological approaches are recommended for the management of NAS. Despite the attention NAS has recently received, treatment recommendations are limited to the hospital setting with much less focus on discharge planning. Additionally, the literature on NAS management does not consider research promoting mother-infant attachment. Recently, more emphasis has been placed on taking a holistic approach to NAS management. However, scholarly writings and research in this area are scarce. This article provides a review of current literature on NAS management and attachment-based interventions. Recommendations for practice and future research focused on holistic, non-pharmacological approaches to NAS management are provided.
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Lespine LF, Plenevaux A, Tirelli E. Wheel-running exercise before and during gestation against acute and sensitized cocaine psychomotor-activation in offspring. Behav Brain Res 2019; 363:53-60. [PMID: 30703395 DOI: 10.1016/j.bbr.2019.01.049] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/16/2018] [Revised: 01/24/2019] [Accepted: 01/27/2019] [Indexed: 12/15/2022]
Abstract
While animal research has consistently reported preventive effects of exercise against drug abuse vulnerability, little is known about the influence of the developmental stage during which exercise is displayed on addictive drugs responsiveness. This study aimed to determine whether prenatal exercise could attenuate acute cocaine reactivity and psychomotor sensitization in youth offspring. We used a split-plot factorial design where C57BL/6 J females were randomly assigned into sedentary or exercised (wheel-running) conditions before and during gestation, the wheels being removed on gestational day 18. Offspring were weaned, gendered and individually housed on 24-28 days old. At 38-42 days old, they were tested for their acute psychomotor responsiveness to 8 mg/kg cocaine and their initiation of sensitization over 8 additional once-daily administrations, the long-term expression of sensitization occurring 30 days later. Adolescent females born from exercised mothers were much less responsive to the acute psychomotor-stimulating effect of cocaine than those born from sedentary mothers (d = 0.75, p = 0.02), whereas there was no evidence for such a difference in males (d = 0.34, p = 0.17). However, we did not find sizeable attenuating effects of prenatal exercise on the initiation and the long-term expression of the psychomotor-activating effect of cocaine, in either sex (Cohen's ds varying from -0.13 to 0.39). These results suggest that prenatal exercise may induce initial protection against cocaine responsiveness in youth females, a finding that warrants further research.
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Affiliation(s)
- Louis-Ferdinand Lespine
- Université de Liège, Département de Psychologie, Quartier Agora - Place des orateurs, 2 (B32), 4000 Liège, Belgium.
| | - Alain Plenevaux
- Université de Liège, Département de Psychologie, Quartier Agora - Place des orateurs, 2 (B32), 4000 Liège, Belgium; Université de Liège, Département de Chimie, Quartier Agora - Allée du 6 Août, 8 (B30), 4000 Liège, Belgium
| | - Ezio Tirelli
- Université de Liège, Département de Psychologie, Quartier Agora - Place des orateurs, 2 (B32), 4000 Liège, Belgium
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Harder HJ, Murphy AZ. Early life opioid exposure and potential long-term effects. Neurobiol Stress 2019; 10:100156. [PMID: 31338390 PMCID: PMC6629922 DOI: 10.1016/j.ynstr.2019.100156] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/02/2018] [Revised: 01/13/2019] [Accepted: 03/08/2019] [Indexed: 11/09/2022] Open
Abstract
The long-term consequences of perinatal opioid exposure and subsequent development of neonatal opioid withdrawal syndrome is largely unknown and likely dependent on a multitude of factors, including co-morbid drug use, pre- and post-natal care, and individual factors including the maternal-infant relationship and home environment. This review summarizes the current literature from clinical and preclinical studies on perinatal opioid exposure, focusing on the consequences in the offspring. Although a large number of preclinical studies have been conducted examining the impact of prenatal opioid exposure, the models employed are not necessarily representative of clinical use patterns, making it challenging to translate these results to the impacted population. Use of more clinically-relevant models of perinatal opioid exposure are requisite for the development of improved pharmacological and behavioral treatment strategies to improve quality of life for this vulnerable population.
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Affiliation(s)
| | - Anne Z. Murphy
- Neuroscience Institute, Georgia State University, Atlanta, GA, 30308, USA
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Kvello AMS, Andersen JM, Øiestad EL, Steinsland S, Aase A, Mørland J, Bogen IL. A Monoclonal Antibody against 6-Acetylmorphine Protects Female Mice Offspring from Adverse Behavioral Effects Induced by Prenatal Heroin Exposure. J Pharmacol Exp Ther 2018; 368:106-115. [PMID: 30361238 DOI: 10.1124/jpet.118.251504] [Citation(s) in RCA: 12] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/19/2018] [Accepted: 10/22/2018] [Indexed: 01/04/2023] Open
Abstract
Escalating opioid use among fertile women has increased the number of children being exposed to opioids during fetal life. Furthermore, accumulating evidence links prenatal opioid exposure, including opioid maintenance treatment, to long-term negative effects on cognition and behavior, and presses the need to explore novel treatment strategies for pregnant opioid users. The present study examined the potential of a monoclonal antibody (mAb) targeting heroin's first metabolite, 6-acetylmorphine (6-AM), in providing fetal protection against harmful effects of prenatal heroin exposure in mice. First, we examined anti-6-AM mAb's ability to block materno-fetal transfer of active metabolites after maternal heroin administration. Next, we studied whether maternal mAb pretreatment could prevent adverse effects in neonatal and adolescent offspring exposed to intrauterine heroin (3 × 1.05 mg/kg). Anti-6-AM mAb pretreatment of pregnant dams profoundly reduced the distribution of active heroin metabolites to the fetal brain. Furthermore, maternal mAb administration prevented hyperactivity and drug sensitization in adolescent female offspring prenatally exposed to heroin. Our findings demonstrate that passive immunization with a 6-AM-specific antibody during pregnancy provides fetal neuroprotection against heroin metabolites, and thereby prevents persistent adverse behavioral effects in the offspring. An immunotherapeutic approach to protect the fetus against long-term effects of prenatal drug exposure has not been reported previously, and should be further explored as prophylactic treatment of pregnant heroin users susceptible to relapse.
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Affiliation(s)
- Anne Marte Sjursen Kvello
- Section for Drug Abuse Research, Department of Forensic Sciences, Oslo University Hospital, Oslo, Norway (A.M.S.K., J.M.A., E.L.Ø., S.S., I.L.B.); School of Pharmacy, Faculty of Mathematics and Natural Sciences (A.M.S.K., J.M.A., E.L.Ø.), Institute of Basic Medical Sciences (I.L.B.) and Institute of Clinical Medicine (J.M.), Faculty of Medicine, University of Oslo, Oslo, Norway; and Department of Infectious Disease Immunology (A.A.) and Department of Health Data and Digitalization (J.M.), Norwegian Institute of Public Health, Oslo, Norway
| | - Jannike Mørch Andersen
- Section for Drug Abuse Research, Department of Forensic Sciences, Oslo University Hospital, Oslo, Norway (A.M.S.K., J.M.A., E.L.Ø., S.S., I.L.B.); School of Pharmacy, Faculty of Mathematics and Natural Sciences (A.M.S.K., J.M.A., E.L.Ø.), Institute of Basic Medical Sciences (I.L.B.) and Institute of Clinical Medicine (J.M.), Faculty of Medicine, University of Oslo, Oslo, Norway; and Department of Infectious Disease Immunology (A.A.) and Department of Health Data and Digitalization (J.M.), Norwegian Institute of Public Health, Oslo, Norway
| | - Elisabeth Leere Øiestad
- Section for Drug Abuse Research, Department of Forensic Sciences, Oslo University Hospital, Oslo, Norway (A.M.S.K., J.M.A., E.L.Ø., S.S., I.L.B.); School of Pharmacy, Faculty of Mathematics and Natural Sciences (A.M.S.K., J.M.A., E.L.Ø.), Institute of Basic Medical Sciences (I.L.B.) and Institute of Clinical Medicine (J.M.), Faculty of Medicine, University of Oslo, Oslo, Norway; and Department of Infectious Disease Immunology (A.A.) and Department of Health Data and Digitalization (J.M.), Norwegian Institute of Public Health, Oslo, Norway
| | - Synne Steinsland
- Section for Drug Abuse Research, Department of Forensic Sciences, Oslo University Hospital, Oslo, Norway (A.M.S.K., J.M.A., E.L.Ø., S.S., I.L.B.); School of Pharmacy, Faculty of Mathematics and Natural Sciences (A.M.S.K., J.M.A., E.L.Ø.), Institute of Basic Medical Sciences (I.L.B.) and Institute of Clinical Medicine (J.M.), Faculty of Medicine, University of Oslo, Oslo, Norway; and Department of Infectious Disease Immunology (A.A.) and Department of Health Data and Digitalization (J.M.), Norwegian Institute of Public Health, Oslo, Norway
| | - Audun Aase
- Section for Drug Abuse Research, Department of Forensic Sciences, Oslo University Hospital, Oslo, Norway (A.M.S.K., J.M.A., E.L.Ø., S.S., I.L.B.); School of Pharmacy, Faculty of Mathematics and Natural Sciences (A.M.S.K., J.M.A., E.L.Ø.), Institute of Basic Medical Sciences (I.L.B.) and Institute of Clinical Medicine (J.M.), Faculty of Medicine, University of Oslo, Oslo, Norway; and Department of Infectious Disease Immunology (A.A.) and Department of Health Data and Digitalization (J.M.), Norwegian Institute of Public Health, Oslo, Norway
| | - Jørg Mørland
- Section for Drug Abuse Research, Department of Forensic Sciences, Oslo University Hospital, Oslo, Norway (A.M.S.K., J.M.A., E.L.Ø., S.S., I.L.B.); School of Pharmacy, Faculty of Mathematics and Natural Sciences (A.M.S.K., J.M.A., E.L.Ø.), Institute of Basic Medical Sciences (I.L.B.) and Institute of Clinical Medicine (J.M.), Faculty of Medicine, University of Oslo, Oslo, Norway; and Department of Infectious Disease Immunology (A.A.) and Department of Health Data and Digitalization (J.M.), Norwegian Institute of Public Health, Oslo, Norway
| | - Inger Lise Bogen
- Section for Drug Abuse Research, Department of Forensic Sciences, Oslo University Hospital, Oslo, Norway (A.M.S.K., J.M.A., E.L.Ø., S.S., I.L.B.); School of Pharmacy, Faculty of Mathematics and Natural Sciences (A.M.S.K., J.M.A., E.L.Ø.), Institute of Basic Medical Sciences (I.L.B.) and Institute of Clinical Medicine (J.M.), Faculty of Medicine, University of Oslo, Oslo, Norway; and Department of Infectious Disease Immunology (A.A.) and Department of Health Data and Digitalization (J.M.), Norwegian Institute of Public Health, Oslo, Norway
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Byrnes EM, Vassoler FM. Modeling prenatal opioid exposure in animals: Current findings and future directions. Front Neuroendocrinol 2018; 51:1-13. [PMID: 28965857 PMCID: PMC5649358 DOI: 10.1016/j.yfrne.2017.09.001] [Citation(s) in RCA: 56] [Impact Index Per Article: 9.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/18/2017] [Revised: 09/26/2017] [Accepted: 09/27/2017] [Indexed: 01/03/2023]
Abstract
The past decade has seen a drastic rise in the number of infants exposed to opioids in utero. It is unclear what lasting effect this exposure may have on these children. Animal models of prenatal opioid exposure may provide insight into potential areas of vulnerability. The present review summarizes the findings across animal models of prenatal opioid exposure, including exposure to morphine, methadone, buprenorphine, and oxycodone. Details regarding the drug, doses, and duration of treatment, as well as key findings, are summarized in tables with associated references. Finally, significant gaps in the current preclinical literature and future directions are discussed.
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Affiliation(s)
- Elizabeth M Byrnes
- Department of Biomedical Sciences, Cummings School of Veterinary Medicine, Tufts University, North Grafton, MA 01536, United States.
| | - Fair M Vassoler
- Department of Biomedical Sciences, Cummings School of Veterinary Medicine, Tufts University, North Grafton, MA 01536, United States
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Long-Lasting Alterations in Gene Expression of Postsynaptic Density 95 and Inotropic Glutamatergic Receptor Subunit in the Mesocorticolimbic System of Rat Offspring Born to Morphine-Addicted Mothers. BIOMED RESEARCH INTERNATIONAL 2018; 2018:5437092. [PMID: 29984237 PMCID: PMC6015726 DOI: 10.1155/2018/5437092] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/05/2018] [Accepted: 05/06/2018] [Indexed: 11/18/2022]
Abstract
Prenatal exposure to morphine causes altered glutamatergic neurotransmission, which plays an important pathophysiological role for neurobiological basis of opiate-mediated behaviors in such offspring. However, it is still not clear whether such alteration involves gene expression of ionotropic glutamate receptor subunits. In this study, we further studied whether prenatal morphine exposure resulted in long-term changes in the gene expression of α-amino-3-hydroxy-5-methyl-4-isoxazolepropionic acid (AMPA) receptor, N-methyl-d-aspartate (NMDA) receptor, and postsynaptic density 95 in the mesocorticolimbic area (an essential integration circuitry for drug craving behavior), nucleus accumbens (NAc), ventral tegmental area (VTA), and prefrontal cortex (PFC), of rat offspring from morphine-addicted mothers. Experimental results showed that prenatal morphine exposure led to a persistent downregulation of gene expression in the AMPA and NMDA receptor subunit, with a differential manner of decreased magnitudes, at the age of postnatal days 14 (P14) and P30. However, in PFC, the gene expression of the AMPA receptor subunit was not synchronized in observed rat offspring subjected to prenatal morphine exposure. An upregulation of gene expression in the AMPA receptor subunit 3 (GluR3) was persistently observed at P14 and P30. Furthermore, the gene expressions of PSD-95 in NAc, VTA, and PFC were all decreased concurrently. Collectively, the results suggest that prenatal exposure to morphine may initiate molecular mechanisms leading to a long-lasting, differential alteration in gene expression of the inotropic glutamate receptor subunit and PSD-95 in the mesocorticolimbic circuitry in rat offspring. This study raises a possibility in which differential changes in gene expression with a long-lasting manner may play a role for the development of nearly permanent changes in opiate-mediated behaviors, at least in part for the neurobiological pathogenesis in offspring.
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Chen Y, Lewis R, Curtis JT. Early developmental exposure to inorganic mercury does not alter affiliative behavior of adult prairie voles (Microtus ochrogaster). Integr Zool 2018; 13:761-768. [PMID: 29316305 DOI: 10.1111/1749-4877.12306] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/29/2022]
Abstract
Mercury chloride exposure through drinking water in adult male prairie voles (Microtus ochrogaster) has been shown to alter their social behavior. Here, we examined the potential disruption of adult social behavior in prairie voles that were exposed to 60 ppm mercury during early development. We used a cross-fostering approach to test the effects of mercury exposure: (1) from conception until birth; (ii) from birth until weaning; and (iii) from conception until weaning, on adult affiliative behavior. Untreated and mercury-treated voles were given the option of remaining in an empty cage or affiliating with a same-sex conspecific in a 3-h choice test. We found that early developmental mercury exposure had little if any effect on the reproductive success of breeder pairs or on affiliative behavior by either sex when subjects were tested as adults. These results suggest that, at least in the context of the behavior tested, the effects of early developmental exposure to mercury do not permanently alter adult prairie vole affiliative behavior, or do so in a way that is too subtle to be detected using the current testing paradigm.
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Affiliation(s)
- Yue Chen
- Department of Pharmacology and Physiology, Oklahoma State University Center for Health Sciences, Tulsa, Oklahoma, UK
| | - Robert Lewis
- Department of Pharmacology and Physiology, Oklahoma State University Center for Health Sciences, Tulsa, Oklahoma, UK
| | - J Thomas Curtis
- Department of Pharmacology and Physiology, Oklahoma State University Center for Health Sciences, Tulsa, Oklahoma, UK
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Eitan S, Emery MA, Bates M, Horrax C. Opioid addiction: Who are your real friends? Neurosci Biobehav Rev 2017; 83:697-712. [DOI: 10.1016/j.neubiorev.2017.05.017] [Citation(s) in RCA: 27] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/31/2016] [Revised: 05/17/2017] [Accepted: 05/21/2017] [Indexed: 01/29/2023]
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Transmission of risk from parents with chronic pain to offspring: an integrative conceptual model. Pain 2017; 157:2628-2639. [PMID: 27380502 DOI: 10.1097/j.pain.0000000000000637] [Citation(s) in RCA: 94] [Impact Index Per Article: 13.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 02/06/2023]
Abstract
Offspring of parents with chronic pain are at increased risk for pain and adverse mental and physical health outcomes (Higgins et al, 2015). Although the association between chronic pain in parents and offspring has been established, few studies have addressed why or how this relation occurs. Identifying mechanisms for the transmission of risk that leads to the development of chronic pain in offspring is important for developing preventive interventions targeted to decrease risk for chronic pain and related outcomes (eg, disability and internalizing symptoms). This review presents a conceptual model for the intergenerational transmission of chronic pain from parents to offspring with the goal of setting an agenda for future research and the development of preventive interventions. Our proposed model highlights 5 potential mechanisms for the relation between parental chronic pain and pediatric chronic pain and related adverse outcomes: (1) genetics, (2) alterations in early neurobiological development, (3) pain-specific social learning, (4), general parenting and family health, and (5) exposure to stressful environment. In addition, the model presents 3 potential moderators for the relation between parent and child chronic pain: (1) the presence of chronic pain in a second parent, (2) timing, course, and location of parental chronic pain, and (3) offspring's characteristics (ie, sex, developmental stage, race or ethnicity, and temperament). Such a framework highlights chronic pain as inherently familial and intergenerational, opening up avenues for new models of intervention and prevention that can be family centered and include at-risk children.
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Pooriamehr A, Sabahi P, Miladi-Gorji H. Effects of environmental enrichment during abstinence in morphine dependent parents on anxiety, depressive-like behaviors and voluntary morphine consumption in rat offspring. Neurosci Lett 2017; 656:37-42. [PMID: 28729075 DOI: 10.1016/j.neulet.2017.07.024] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.1] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/20/2017] [Revised: 07/13/2017] [Accepted: 07/14/2017] [Indexed: 10/19/2022]
Abstract
Chronic morphine exposure during puberty increased morphine-induced rewarding effects and sensitization in the next generation. Given the well-known beneficial effects of environmental enrichment on the severity of physical and psychological dependence on morphine, we examined effects of enriched environment during morphine abstinence in morphine dependent parental rats before mating on the anxiety and depressive-like behaviors, and voluntary morphine consumption in their offspring. Paternal and/or maternal rats were injected with bi-daily doses (10mg/kg, 12h intervals) of morphine for 14days followed by rearing in a standard environment (SE) or enriched environment (EE) during 30days of morphine abstinence before mating. The pubertal male and female rat offspring were tested for anxiety (the elevated plus maze- EPM) and depression (sucrose preference test-SPT), and voluntary morphine consumption using a two-bottle choice (TBC) paradigm. The results showed that EE experience in morphine-dependent both parents result in an increase in the percentage of time spent into open arms/time spent on both arms using EPM in male offspring, higher levels of sucrose preference in female offspring and lower levels of voluntary morphine consumption in male and female offspring. Thus, EE experience in morphine-dependent both parents reduced anxiety, depressive-like behavior and also the voluntary morphine consumption in their offspring during puberty which may prevent the vulnerability of the next generation to drug abuse.
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Affiliation(s)
- Alireza Pooriamehr
- Faculty of Psychology and Educational Sciences, University of Semnan, Semnan, Iran
| | - Parviz Sabahi
- Faculty of Psychology and Educational Sciences, University of Semnan, Semnan, Iran
| | - Hossein Miladi-Gorji
- Laboratory of Animal Addiction Models, Research Center and Department of Physiology, School of Medicine, Semnan University of Medical Sciences, Semnan, Iran.
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Salmanzadeh H, Azizi H, Semnanian S. Adolescent chronic escalating morphine administration induces long lasting changes in tolerance and dependence to morphine in rats. Physiol Behav 2017; 174:191-196. [DOI: 10.1016/j.physbeh.2017.03.014] [Citation(s) in RCA: 19] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/28/2016] [Revised: 03/11/2017] [Accepted: 03/11/2017] [Indexed: 10/20/2022]
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Nakhjiri E, Saboory E, Roshan-Milani S, Rasmi Y, Sayyadi H. Prenatal Stress+Morphine and Postnatal Re-exposure to Stress Alter Pentylenetetrazol-Induced Epileptic Manifestations in Rats. NEUROPHYSIOLOGY+ 2017. [DOI: 10.1007/s11062-017-9610-5] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
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Neonatal Adaptation Issues After Maternal Exposure to Prescription Drugs: Withdrawal Syndromes and Residual Pharmacological Effects. Drug Saf 2016; 39:903-24. [DOI: 10.1007/s40264-016-0435-8] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/19/2022]
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Parolin M, Simonelli A. Attachment Theory and Maternal Drug Addiction: The Contribution to Parenting Interventions. Front Psychiatry 2016; 7:152. [PMID: 27625612 PMCID: PMC5004230 DOI: 10.3389/fpsyt.2016.00152] [Citation(s) in RCA: 31] [Impact Index Per Article: 3.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/17/2016] [Accepted: 08/18/2016] [Indexed: 12/31/2022] Open
Abstract
Children's emotional and relational development can be negatively influenced by maternal substance abuse, particularly through a dysfunctional caregiving environment. Attachment Theory offers a privileged framework to analyze how drug addiction can affect the quality of adult attachment style, parenting attitudes and behaviors toward the child, and how it can have a detrimental effect on the co-construction of the attachment bond by the mother and the infant. Several studies, as a matter of fact, have identified a prevalence of insecure patterns among drug-abusing mothers and their children. Many interventions for mothers with Substance Use Disorders have focused on enhancing parental skills, but they have often overlooked the emotional and relational features of the mother-infant bond. Instead, in recent years, a number of protocols have been developed in order to strengthen the relationship between drug-abusing mothers and their children, drawing lessons from Attachment Theory. The present study reviews the literature on the adult and infant attachment style in the context of drug addiction, describing currently available treatment programs that address parenting and specifically focus on the mother-infant bond, relying on Attachment Theory.
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Affiliation(s)
- Micol Parolin
- Department of Developmental and Social Psychology, University of Padua, Padua, Italy
| | - Alessandra Simonelli
- Department of Developmental and Social Psychology, University of Padua, Padua, Italy
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Nygaard E, Slinning K, Moe V, Walhovd KB. Behavior and Attention Problems in Eight-Year-Old Children with Prenatal Opiate and Poly-Substance Exposure: A Longitudinal Study. PLoS One 2016; 11:e0158054. [PMID: 27336798 PMCID: PMC4918960 DOI: 10.1371/journal.pone.0158054] [Citation(s) in RCA: 53] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2016] [Accepted: 06/09/2016] [Indexed: 01/08/2023] Open
Abstract
Multiple studies have found that children born to mothers with opioid or poly-substance use during pregnancy have more behavior and attention problems and lower cognitive functioning than non-exposed children. The present study aimed to investigate whether behavior and attention problems are more prominent than general cognitive deficits in this risk group and whether the problems wane or increase over time. This prospective longitudinal cross-informant study compared 72 children who were prenatally exposed to heroin and multiple drugs with a group of 58 children without known prenatal risk factors. Group differences in caregivers' and teachers' reports of the children's behavior and attention problems based on the Child Behavior Check List and the ADHD Rating Scale were compared based on group differences in general cognitive functioning at 4 ½ and 8 ½ years of age. Both parent and teacher reports suggest that the exposed group has significantly more problems in several behavioral areas than the comparison group, particularly with regard to attention problems. The preschool teachers had already reported these problems when the children were 4 ½ years old, whereas the caregivers reported these problems mainly when the children were 8 ½ years old. The group differences in behavioral and attentional problems were not significantly greater and some were even significantly smaller than the group differences in general cognitive abilities. These findings suggest that children subject to prenatally drug exposure have increasing problems in multiple areas related to behavior from preschool age to 8 ½ years but that these problems do not seem to be specific; i.e., they are not more severe than the problems with general cognitive abilities found for this group.
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Affiliation(s)
- Egil Nygaard
- Research Group for Lifespan Changes in Brain and Cognition, Department of Psychology, University of Oslo, Oslo, Norway
- Center for Child and Adolescent Mental Health, Eastern and Southern Norway (RBUP), Oslo, Norway
| | - Kari Slinning
- Center for Child and Adolescent Mental Health, Eastern and Southern Norway (RBUP), Oslo, Norway
- Department of Psychology, University of Oslo, Oslo, Norway
| | - Vibeke Moe
- Center for Child and Adolescent Mental Health, Eastern and Southern Norway (RBUP), Oslo, Norway
- Department of Psychology, University of Oslo, Oslo, Norway
| | - Kristine B. Walhovd
- Research Group for Lifespan Changes in Brain and Cognition, Department of Psychology, University of Oslo, Oslo, Norway
- Department of Physical Medicine and Rehabilitation, Unit of Neuropsychology, Oslo University Hospital, Oslo, Norway
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Role of morphine, miR-212/132 and mu opioid receptor in the regulation of Bdnf in zebrafish embryos. Biochim Biophys Acta Gen Subj 2016; 1860:1308-16. [DOI: 10.1016/j.bbagen.2016.03.001] [Citation(s) in RCA: 23] [Impact Index Per Article: 2.9] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/18/2015] [Revised: 01/29/2016] [Accepted: 03/01/2016] [Indexed: 11/18/2022]
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39
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Terasaki LS, Gomez J, Schwarz JM. An examination of sex differences in the effects of early-life opiate and alcohol exposure. Philos Trans R Soc Lond B Biol Sci 2016; 371:20150123. [PMID: 26833841 DOI: 10.1098/rstb.2015.0123] [Citation(s) in RCA: 46] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 11/08/2015] [Indexed: 11/12/2022] Open
Abstract
Early-life exposure to drugs and alcohol is one of the most preventable causes of developmental, behavioural and learning disorders in children. Thus a significant amount of basic, animal and human research has focused on understanding the behavioural consequences and the associated neural effects of exposure to drugs and alcohol during early brain development. Despite this, much of the previous research that has been done on this topic has used predominantly male subjects or rodents. While many of the findings from these male-specific studies may ultimately apply to females, the purpose of this review is to highlight the research that has also examined sex as a factor and found striking differences between the sexes in their response to early-life opiate and alcohol exposure. Finally, we will also provide a framework for scientists interested in examining sex as a factor in future experiments that specifically examine the consequences of early-life drug and alcohol exposure.
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Affiliation(s)
- Laurne S Terasaki
- Department of Psychological and Brain Sciences, University of Delaware, 108 Wolf Hall, Newark, DE 19716, USA
| | - Julie Gomez
- Department of Psychological and Brain Sciences, University of Delaware, 108 Wolf Hall, Newark, DE 19716, USA
| | - Jaclyn M Schwarz
- Department of Psychological and Brain Sciences, University of Delaware, 108 Wolf Hall, Newark, DE 19716, USA
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Anand KJS, Campbell-Yeo M. Consequences of prenatal opioid use for newborns. Acta Paediatr 2015; 104:1066-9. [PMID: 26174725 DOI: 10.1111/apa.13121] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/27/2015] [Revised: 05/26/2015] [Accepted: 07/08/2015] [Indexed: 01/20/2023]
Abstract
UNLABELLED One-third of childbearing women take prescription opioids, previously occurring only in 6-7% of pregnant women. Prenatal opioid exposures may cause birth defects, altered brain development and neonatal abstinence syndrome (NAS). NAS incidence increased fourfold and length of stay increased from 13 to 19 days over 10 years (2004-2013), leading to sevenfold increases in NICU days due to NAS. Initial data suggest that recent NAS increases have resulted from increased use of prescription opioids rather than illicit drugs. CONCLUSION Paediatricians will have to manage the consequences of prenatal opioid exposures, as the offspring often have complex medical and social issues associated with these families.
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Affiliation(s)
- Kanwaljeet J. S. Anand
- Departments of Pediatrics, Anesthesiology, Anatomy & Neurobiology; University of Tennessee Health Science Center; Memphis TN USA
- Pain Neurobiology Lab; UT Neuroscience Institute; Memphis TN USA
| | - Marsha Campbell-Yeo
- School of Nursing and Departments of Pediatrics, Psychology and Neuroscience; Dalhousie University; Halifax NS Canada
- Centre for Pediatric Pain Research; IWK Health Centre; Halifax NS Canada
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Mithbaokar P, Fiorito F, Della Morte R, Maharajan V, Costagliola A. Chronic maternal morphine alters calbindin D-28k expression pattern in postnatal mouse brain. Synapse 2015; 70:15-23. [PMID: 26418221 DOI: 10.1002/syn.21866] [Citation(s) in RCA: 9] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/26/2015] [Revised: 09/23/2015] [Accepted: 09/23/2015] [Indexed: 12/18/2022]
Abstract
The distribution pattern of calbindin (CB)-D28k-expressing neurons results to be altered in several brain regions of chronic morphine exposed adult mice. In this study, the influence of chronic maternal exposure to morphine on the distribution pattern of CB-D28k-expressing neurons in the brain of mouse offspring was investigated. Females of CD-1 mice were daily administered with saline or morphine for 7 days before mating, during the whole gestation period, and until 21 day post-partum. Their offspring were sacrificed on postnatal day 18, and the brains were examined by histology using cresyl violet and by immunohistochemistry using a rabbit polyclonal anti-CB-D28k antibody. Histology revealed no significant differences in the distribution pattern and the number of neurons between the offspring forebrain of the control group of mice and the two groups of mice treated with different doses of morphine. However, immunohistochemical analysis revealed that the number of CB-D28k-immunoreactive neurons remarkably decreased in the cingulate cortex, in the layers II-IV of the parietal cortex and in all regions of the hippocampus, while it increased in the layers V-VI of the parietal cortex and in the subicular region of the offspring brain of morphine treated mice. Overall, our findings demonstrate that maternal exposure to morphine alters the pattern of CB-D28k-expressing neuron pattern in specific regions of murine developing brain, in a layer- and dose-dependent way, thus suggesting that these alterations might represent a mechanism by which morphine modifies the functional aspects of developing brain.
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Affiliation(s)
- Pratibha Mithbaokar
- Department of Veterinary Medicine and Animal Productions, University of Naples Federico II, via F. Delpino, 1, Naples, 80137, Italy
| | - Filomena Fiorito
- Department of Veterinary Medicine and Animal Productions, University of Naples Federico II, via F. Delpino, 1, Naples, 80137, Italy.,Department of Chemistry, Istituto Zooprofilattico Sperimentale Del Mezzogiorno, via Salute, 2, Portici, Naples, 80055, Italy
| | - Rossella Della Morte
- Department of Veterinary Medicine and Animal Productions, University of Naples Federico II, via F. Delpino, 1, Naples, 80137, Italy
| | | | - Anna Costagliola
- Department of Veterinary Medicine and Animal Productions, University of Naples Federico II, via F. Delpino, 1, Naples, 80137, Italy
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Zelena D. The janus face of stress on reproduction: from health to disease. Int J Endocrinol 2015; 2015:458129. [PMID: 25945091 PMCID: PMC4405284 DOI: 10.1155/2015/458129] [Citation(s) in RCA: 3] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/17/2014] [Revised: 03/17/2015] [Accepted: 03/20/2015] [Indexed: 12/16/2022] Open
Abstract
Parenthood is a fundamental feature of all known life. However, infertility has been recognized as a public health issue worldwide. But even when the offspring are conceived, in utero problems can lead to immediate (abortion), early (birth), and late (adulthood) consequences. One of the most studied factors is stress. However, stress response is, per se, of adaptive nature allowing the organism to cope with challenges. Stressors lead to deterioration if one is faced with too long lasting, too many, and seemingly unsolvable situations. In stress adaptation the hypothalamus-pituitary-adrenocortical axis and the resulting glucocorticoid elevation are one of the most important mechanisms. At cellular level stress can be defined as an unbalance between production of free radicals and antioxidant defenses. Oxidative stress is widely accepted as an important pathogenic mechanism in different diseases including infertility. On the other hand, the goal of free radical production is to protect the cells from infectious entities. This review aims to summarize the negative and positive influence of stress on reproduction as a process leading to healthy progeny. Special emphasis was given to the balance at the level of the organism and cells.
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Affiliation(s)
- Dóra Zelena
- Hungarian Academy of Sciences, Institute of Experimental Medicine, Szigony 43, Budapest 1083, Hungary
- *Dóra Zelena:
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Reese ME, Fitzgerald C, Hynes C. Transient Osteoporosis of Pregnancy of the Bilateral Hips in Twin Gestation: A Case Series. PM R 2014; 7:88-93. [DOI: 10.1016/j.pmrj.2014.08.362] [Citation(s) in RCA: 2] [Impact Index Per Article: 0.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/02/2014] [Revised: 07/31/2014] [Accepted: 08/02/2014] [Indexed: 11/30/2022]
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