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Boerner KE, Keogh E, Inkster AM, Nahman-Averbuch H, Oberlander TF. A developmental framework for understanding the influence of sex and gender on health: Pediatric pain as an exemplar. Neurosci Biobehav Rev 2024; 158:105546. [PMID: 38272336 DOI: 10.1016/j.neubiorev.2024.105546] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/12/2022] [Revised: 07/07/2023] [Accepted: 11/06/2023] [Indexed: 01/27/2024]
Abstract
Sex differences are a robust finding in many areas of adult health, including cardiovascular disease, psychiatric disorders, and chronic pain. However, many sex differences are not consistently observed until after the onset of puberty. This has led to the hypothesis that hormones are primary contributors to sex differences in health outcomes, largely ignoring the relative contributions of early developmental influences, emerging psychosocial factors, gender, and the interaction between these variables. In this paper, we argue that a comprehensive understanding of sex and gender contributions to health outcomes should start as early as conception and take an iterative biopsychosocial-developmental perspective that considers intersecting social positions. We present a conceptual framework, informed by a review of the literature in basic, clinical, and social science that captures how critical developmental stages for both sex and gender can affect children's health and longer-term outcomes. The literature on pediatric chronic pain is used as a worked example of how the framework can be applied to understanding different chronic conditions.
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Affiliation(s)
- Katelynn E Boerner
- Department of Pediatrics, University of British Columbia, and BC Children's Hospital Research Institute, Vancouver, BC, Canada.
| | - Edmund Keogh
- Department of Psychology & Centre for Pain Research, University of Bath, Bath, United Kingdom
| | - Amy M Inkster
- Department of Medical Genetics, University of British Columbia, and BC Children's Hospital Research Institute, Vancouver, BC, Canada
| | - Hadas Nahman-Averbuch
- Department of Anesthesiology, Washington University in St. Louis, St. Louis, MO, USA
| | - Tim F Oberlander
- Department of Pediatrics, University of British Columbia, and BC Children's Hospital Research Institute, Vancouver, BC, Canada; School of Population and Public Health, University of British Columbia, and BC Children's Hospital Research Institute, Vancouver, BC, Canada
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2
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Castro NCF, Silva IS, Cartágenes SC, Fernandes LMP, Ribera PC, Barros MA, Prediger RD, Fontes-Júnior EA, Maia CSF. Morphine Perinatal Exposure Induces Long-Lasting Negative Emotional States in Adult Offspring Rodents. Pharmaceutics 2021; 14:pharmaceutics14010029. [PMID: 35056925 PMCID: PMC8778186 DOI: 10.3390/pharmaceutics14010029] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/11/2021] [Revised: 11/28/2021] [Accepted: 12/03/2021] [Indexed: 11/16/2022] Open
Abstract
Psychoactive substances during pregnancy and lactation is a key problem in contemporary society, causing social, economic, and health disturbance. In 2010, about 30 million people used opioid analgesics for non-therapeutic purposes, and the prevalence of opioids use during pregnancy ranged from 1% to 21%, representing a public health problem. This study aimed to evaluate the long-lasting neurobehavioral and nociceptive consequences in adult offspring rats and mice exposed to morphine during intrauterine/lactation periods. Pregnant rats and mice were exposed subcutaneously to morphine (10 mg/kg/day) during 42 consecutive days (from the first day of pregnancy until the last day of lactation). Offspring were weighed on post-natal days (PND) 1, 5, 10, 15, 20, 30, and 60, and behavioral tasks (experiment 1) or nociceptive responses (experiment 2) were assessed at 75 days of age (adult life). Morphine-exposed female rats displayed increased spontaneous locomotor activity. More importantly, both males and female rats perinatally exposed to morphine displayed anxiety- and depressive-like behaviors. Morphine-exposed mice presented alterations in the nociceptive responses on the writhing test. This study showed that sex difference plays a role in pain threshold and that deleterious effects of morphine during pre/perinatal periods are nonrepairable in adulthood, which highlights the long-lasting clinical consequences related to anxiety, depression, and nociceptive disorders in adulthood followed by intrauterine and lactation morphine exposure.
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Affiliation(s)
- Nair C. F. Castro
- Laboratório de Farmacologia da Inflamação e do Comportamento, Faculdade de Farmácia, Universidade Federal do Pará, Belém 66075-900, Brazil; (N.C.F.C.); (I.S.S.); (S.C.C.); (P.C.R.); (M.A.B.); (E.A.F.-J.)
| | - Izabelle S. Silva
- Laboratório de Farmacologia da Inflamação e do Comportamento, Faculdade de Farmácia, Universidade Federal do Pará, Belém 66075-900, Brazil; (N.C.F.C.); (I.S.S.); (S.C.C.); (P.C.R.); (M.A.B.); (E.A.F.-J.)
| | - Sabrina C. Cartágenes
- Laboratório de Farmacologia da Inflamação e do Comportamento, Faculdade de Farmácia, Universidade Federal do Pará, Belém 66075-900, Brazil; (N.C.F.C.); (I.S.S.); (S.C.C.); (P.C.R.); (M.A.B.); (E.A.F.-J.)
| | - Luanna M. P. Fernandes
- Departamento de Ciências Morfológicas e Fisiológicas, Centro das Ciências Biológicas e da Saúde (CCBS), Universidade Estadual do Pará, Belém 66087-662, Brazil;
| | - Paula C. Ribera
- Laboratório de Farmacologia da Inflamação e do Comportamento, Faculdade de Farmácia, Universidade Federal do Pará, Belém 66075-900, Brazil; (N.C.F.C.); (I.S.S.); (S.C.C.); (P.C.R.); (M.A.B.); (E.A.F.-J.)
| | - Mayara A. Barros
- Laboratório de Farmacologia da Inflamação e do Comportamento, Faculdade de Farmácia, Universidade Federal do Pará, Belém 66075-900, Brazil; (N.C.F.C.); (I.S.S.); (S.C.C.); (P.C.R.); (M.A.B.); (E.A.F.-J.)
| | - Rui D. Prediger
- Departamento de Farmacologia, Centro de Ciências Biológicas, Universidade Federal de Santa Catarina, Florianópolis 88040-900, Brazil;
| | - Enéas A. Fontes-Júnior
- Laboratório de Farmacologia da Inflamação e do Comportamento, Faculdade de Farmácia, Universidade Federal do Pará, Belém 66075-900, Brazil; (N.C.F.C.); (I.S.S.); (S.C.C.); (P.C.R.); (M.A.B.); (E.A.F.-J.)
| | - Cristiane S. F. Maia
- Laboratório de Farmacologia da Inflamação e do Comportamento, Faculdade de Farmácia, Universidade Federal do Pará, Belém 66075-900, Brazil; (N.C.F.C.); (I.S.S.); (S.C.C.); (P.C.R.); (M.A.B.); (E.A.F.-J.)
- Correspondence:
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Vassoler FM, Wimmer ME. Consequences of Parental Opioid Exposure on Neurophysiology, Behavior, and Health in the Next Generations. Cold Spring Harb Perspect Med 2021; 11:a040436. [PMID: 32601130 PMCID: PMC8485740 DOI: 10.1101/cshperspect.a040436] [Citation(s) in RCA: 6] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/25/2022]
Abstract
Substance abuse and the ongoing opioid epidemic represents a large societal burden. This review will consider the long-term impact of opioid exposure on future generations. Prenatal, perinatal, and preconception exposure are reviewed with discussion of both maternal and paternal influences. Opioid exposure can have long-lasting effects on reproductive function, gametogenesis, and germline epigenetic programming, which can influence embryogenesis and alter the developmental trajectory of progeny. The potential mechanisms by which preconception maternal and paternal opioid exposure produce deleterious consequences on the health, behavior, and physiology of offspring that have been identified by clinical and animal studies will be discussed. The timing, nature, dosing, and duration of prenatal opioid exposure combined with other important environmental considerations influence the extent to which these manipulations affect parents and their progeny. Epigenetic inheritance refers to the transmission of environmental insults across generations via mechanisms independent of the DNA sequence. This topic will be further explored in the context of prenatal, perinatal, and preconception opioid exposure for both the maternal and paternal lineage.
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Affiliation(s)
- Fair M Vassoler
- Tufts University, Cummings School of Veterinary Medicine, Grafton, Massachusetts 01536, USA
| | - Mathieu E Wimmer
- Department of Psychology and Program in Neuroscience, Temple University, Philadelphia, Pennsylvania 19122, USA
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Meymandi MS, Sepehri G, Moslemizadeh A, Shahrbabaki SSV. Prenatal Pregabalin Exposure Alters Postnatal Pain Sensitivity and Some Behavioral Responses in Adult Offspring Rats. Curr Drug Saf 2021; 15:205-214. [PMID: 32598270 DOI: 10.2174/1574886315666200628114257] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/16/2020] [Revised: 05/26/2020] [Accepted: 05/29/2020] [Indexed: 11/22/2022]
Abstract
BACKGROUND Prenatal antiepileptic drug exposure could demonstrate both congenital malformations and behavioral impairments in offspring. OBJECTIVE This study was performed to assess the effects of prenatal exposure to pregabalin (PGB) on pain response, anxiety, motor activity and some behavior of adult offspring rats. METHODS Pregnant Wistar rats received PGB (7.5, 15 and 30 mg/kg/ip) during embryonic days 9.5- 15.5. The pain response, anxiety-like behaviors, locomotor activity, motor balance and coordination and anhedonia of adult offspring were examined by tail-flick and hot plate test, open field test, elevated plus maze (EPM), beam balance test and sucrose preference test in their 60th day of life, respectively. RESULTS Prenatal exposure to PGB revealed significant dose-dependent reduction in pain sensitivity (increase in pain latency response) in the hot plate test, especially in females, while anxiety-like behavior assessed in EPM and open field significantly reduced in males. In the open field, locomotor activity reduced significantly after exposure to PGB 30 mg/kg and motor coordination decreased dose-dependently, especially in males. Anhedonia, as an indication of sucrose preference or pleasure response, was not changed. CONCLUSION These findings suggest that prenatal PGB exposure could be associated with significant changes in pain response, anxiety, locomotor activity and coordination in adult offspring rats.
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Affiliation(s)
- Manzumeh-Shamsi Meymandi
- Pathology and Stem Cells Research Center, Kerman Medical School, Kerman University of Medical Sciences, Kerman, Iran,Physiology and Pharmacology Department, Kerman Medical School, Kerman University of Medical Sciences,
Kerman, Iran
| | - Gholamreza Sepehri
- Kerman Neuroscience Research Center, Neuropharmacology Institute, Kerman University of Medical
Sciences, Kerman, Iran
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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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Vassoler FM, Oliver DJ, Wyse C, Blau A, Shtutman M, Turner JR, Byrnes EM. Transgenerational attenuation of opioid self-administration as a consequence of adolescent morphine exposure. Neuropharmacology 2017; 113:271-280. [PMID: 27729240 PMCID: PMC5248554 DOI: 10.1016/j.neuropharm.2016.10.006] [Citation(s) in RCA: 42] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/19/2016] [Revised: 09/29/2016] [Accepted: 10/07/2016] [Indexed: 01/13/2023]
Abstract
The United States is in the midst of an opiate epidemic, with abuse of prescription and illegal opioids increasing steadily over the past decade. While it is clear that there is a genetic component to opioid addiction, there is a significant portion of heritability that cannot be explained by genetics alone. The current study was designed to test the hypothesis that maternal exposure to opioids prior to pregnancy alters abuse liability in subsequent generations. Female adolescent Sprague Dawley rats were administered morphine at increasing doses (5-25 mg/kg, s.c.) or saline for 10 days (P30-39). During adulthood, animals were bred with drug-naïve colony males. Male and female adult offspring (F1 animals) were tested for morphine self-administration acquisition, progressive ratio, extinction, and reinstatement at three doses of morphine (0.25, 0.75, 1.25 mg/kg/infusion). Grandoffspring (F2 animals, from the maternal line) were also examined. Additionally, gene expression changes within the nucleus accumbens were examined with RNA deep sequencing (PacBio) and qPCR. There were dose- and sex-dependent effects on all phases of the self-administration paradigm that indicate decreased morphine reinforcement and attenuated relapse-like behavior. Additionally, genes related to synaptic plasticity, as well as myelin basic protein (MBP), were dysregulated. Some, but not all, effects persisted into the subsequent (F2) generation. The results demonstrate that even limited opioid exposure during adolescence can have lasting effects across multiple generations, which has implications for mechanisms of the transmission of drug abuse liability in humans.
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Affiliation(s)
- Fair M Vassoler
- Cummings School at Tufts University, 200 Westboro Road, North Grafton, MA 01536, USA.
| | - David J Oliver
- University of South Carolina College of Pharmacy, 773 Sumter St, Columbia, SC 29208, USA
| | - Cristina Wyse
- Cummings School at Tufts University, 200 Westboro Road, North Grafton, MA 01536, USA
| | - Ashley Blau
- Cummings School at Tufts University, 200 Westboro Road, North Grafton, MA 01536, USA
| | - Michael Shtutman
- University of South Carolina College of Pharmacy, 773 Sumter St, Columbia, SC 29208, USA
| | - Jill R Turner
- University of South Carolina College of Pharmacy, 773 Sumter St, Columbia, SC 29208, USA
| | - Elizabeth M Byrnes
- Cummings School at Tufts University, 200 Westboro Road, North Grafton, MA 01536, USA
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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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Abstract
This paper is the thirty-sixth consecutive installment of the annual review of research concerning the endogenous opioid system. It summarizes papers published during 2013 that studied the behavioral effects of molecular, pharmacological and genetic manipulation of opioid peptides, opioid receptors, opioid agonists and opioid antagonists. The particular topics that continue to be covered include the molecular-biochemical effects and neurochemical localization studies of endogenous opioids and their receptors related to behavior, and the roles of these opioid peptides and receptors in pain and analgesia; stress and social status; tolerance and dependence; learning and memory; eating and drinking; alcohol and drugs of abuse; sexual activity and hormones, pregnancy, development and endocrinology; mental illness and mood; seizures and neurologic disorders; electrical-related activity and neurophysiology; general activity and locomotion; gastrointestinal, renal and hepatic functions; cardiovascular responses; respiration and thermoregulation; and immunological responses.
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Affiliation(s)
- Richard J Bodnar
- Department of Psychology and Neuropsychology Doctoral Sub-Program, Queens College, City University of New York, Flushing, NY 11367, United States.
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