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Zenouzi A, Moghadam ZB, Babayanzad S, Asghari M, Rezaei E. The Effect of Benson Relaxation Technique on Stress, Anxiety, and Depression in Pregnant Women. Holist Nurs Pract 2024; 38:227-237. [PMID: 34347634 DOI: 10.1097/hnp.0000000000000463] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Relaxation programs can be effective in establishing psychological tranquility for maternal and fetal health. This study was conducted to evaluate the effect of this low-cost, effective, easy method on the stress, anxiety, and depression in pregnant women. This randomized clinical trial study was conducted from July 2015 to July 2016. Seventy pregnant women in the third trimester of pregnancy were included in this study. Participants were randomly assigned to 2 groups of 35 subjects using a random number table. Participants in group 1 received relaxation training and group 2 received routine care. A demographic questionnaire and Depression, Anxiety, and Stress Scale (DASS-21) were completed before and 1 and 2 months after the intervention. The SPSS software version 18 was used for data analysis. There were significant differences in the mean difference of the total DASS score (14; 95% confidence interval [CI]: 4 to 32) as well as the scores of stress (4; 95% CI : 1 to 10), anxiety (6; 95% CI: 2 to 10), and depression (6; 95% CI: 2 to 12) 2 months after the intervention between the 2 groups. The Benson relaxation technique decreased DASS-21 scores in the intervention group.
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Affiliation(s)
- Azade Zenouzi
- Author Affiliations: School of Nursing and Midwifery, Tehran University of Medical Sciences, Tehran, Iran (Ms Zenouzi and Dr. Babayanzad); Islamic Azad University, Pishva Branch, Tehran, Iran (Mss Zenouzi and Asghari); Faculty of Nursing and Midwifery, Tehran University of Medical Sciences, Tehran, Iran (Dr. Moghadam); and Reproductive Health Research Center, Clinical Research Institute, Urmia University of Medical Sciences, Urmia, Iran (Dr. Rezaei)
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Chindo BA, Howes MJR, Abuhamdah S, Mallam D, Micah T, Awotula RI, Battison R, Chazot PL. Evaluation of the anti-nociceptive profile of essential oil from Melissa officinalis L. (lemon balm) in acute and chronic pain models. JOURNAL OF ETHNOPHARMACOLOGY 2024; 321:117500. [PMID: 38030022 DOI: 10.1016/j.jep.2023.117500] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Received: 09/27/2023] [Revised: 11/14/2023] [Accepted: 11/22/2023] [Indexed: 12/01/2023]
Abstract
ETHNOPHARMACOLOGICAL RELEVANCE Melissa officinalis L. (Lamiaceae) is a medicinal plant native to Mediterranean regions and found in other parts of the world. Extracts and essential oil from this widely cultivated culinary medicinal herb are used in traditional medicine to manage a variety of disorders that include epilepsy and pain. AIM OF THE STUDY To assess the anti-nociceptive potentials of Melissa officinalis essential oil (MO) and probe the involvement of adrenergic, opioidergic, serotonergic and potassium adenosine triphosphate (KATP) mechanisms in its anti-nociceptive effects. MATERIAL AND METHODS We employed formalin-, acetic acid and hot plate-induced nociception to study the acute anti-nociceptive effects of MO. The sciatic nerve injury (CCI) model of neuropathic pain was utilized to study the anti-nociceptive effects of MO on chronic pain. Effects of MO on anxiety, cognitive deficits, oxidative stress and inflammation in the CCI rats were evaluated on elevated plus maze, open field test, novel object recognition, oxidative stress parameters and pro-inflammatory cytokines, respectively. The possible mechanism(s) of MO's anti-nociceptive effects were elucidated using prazosin, yohimbine, propranolol, glibenclimide, naloxone and metergoline, which are acknowledged antagonists for α1-, α2- and β-adrenergic, potassium adenosine triphosphate (KATP), opioidergic and serotonergic systems, respectively. RESULTS MO significantly attenuated acetic acid- and formalin-induced nociception; prolonged the mean reaction time of rats on hot plate before and following sciatic nerve chronic injury (CCI). MO ameliorated anxiety, cognitive deficits and oxidative stress, reduced pro-inflammatory cytokine levels and produced a near total restoration of injured sciatic nerves in CCI rats. Naloxone, metergoline and glibenclimide significantly blocked, while prazosin, yohimbine and popranolol failed to block the anti-nociceptive effects of MO in formalin-induced nociception. CONCLUSIONS MO contains biologically active compounds with potential anti-nociceptive properties that modulate KATP, opioidergic and serotonergic pathways. These support the development of bioactive compounds from MO as anti-nociceptive agents.
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Affiliation(s)
- Ben A Chindo
- Department of Pharmacology and Toxicology, Kaduna State University, Kaduna, Nigeria.
| | | | - Sawsan Abuhamdah
- Department of Biosciences, Durham University, Durham, DH1 3LE, United Kingdom; College of Pharmacy, Al Ain University, P.O. Box 112612, Abu Dhabi, United Arab Emirates; Department of Biopharmaceutics and Clinical Pharmacy, The University of Jordan, Amman, Jordan
| | - Danjuma Mallam
- Department of Pharmacology and Toxicology, Kaduna State University, Kaduna, Nigeria
| | - Timothy Micah
- Department of Pharmacology and Toxicology, Kaduna State University, Kaduna, Nigeria
| | - Rosemary I Awotula
- Department of Pharmacology and Toxicology, Kaduna State University, Kaduna, Nigeria; Roses Veterinary Services, No. 5 Nyerere Road, Narayi High Cost, Kaduna, Nigeria
| | - Robin Battison
- Royal Botanic Gardens Kew, Richmond, Surrey, TW9 3DS, United Kingdom
| | - Paul L Chazot
- Department of Biosciences, Durham University, Durham, DH1 3LE, United Kingdom
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Harper KM, Harp SJ, Moy SS. Prenatal stress unmasks behavioral phenotypes in genetic mouse models of neurodevelopmental disorders. Front Behav Neurosci 2023; 17:1271225. [PMID: 37809038 PMCID: PMC10556231 DOI: 10.3389/fnbeh.2023.1271225] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/01/2023] [Accepted: 09/05/2023] [Indexed: 10/10/2023] Open
Abstract
Neurodevelopmental disorders (NDDs) are complex conditions characterized by heterogeneous clinical profiles and symptoms that arise in infancy and childhood. NDDs are often attributed to a complicated interaction between genetic risk and environmental factors, suggesting a need for preclinical models reflecting the combined impact of heritable susceptibility and environmental effects. A notable advantage of "two-hit" models is the power to reveal underlying vulnerability that may not be detected in studies employing only genetic or environmental alterations. In this review, we summarize existing literature that investigates detrimental interactions between prenatal stress (PNS) and genes associated with NDDs, with a focus on behavioral phenotyping approaches in mouse models. A challenge in determining the overall role of PNS exposure in genetic models is the diversity of approaches for inducing stress, variability in developmental timepoints for exposure, and differences in phenotyping regimens across laboratories. Identification of optimal stress protocols and critical windows for developmental effects would greatly improve the use of PNS in gene × environment mouse models of NDDs.
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Affiliation(s)
- Kathryn M. Harper
- Department of Psychiatry, University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, NC, United States
- Carolina Institute for Developmental Disabilities, University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, NC, United States
| | - Samuel J. Harp
- Department of Psychiatry, University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, NC, United States
- Carolina Institute for Developmental Disabilities, University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, NC, United States
| | - Sheryl S. Moy
- Department of Psychiatry, University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, NC, United States
- Carolina Institute for Developmental Disabilities, University of North Carolina at Chapel Hill School of Medicine, Chapel Hill, NC, United States
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Cook A, Beckmann H, Azap R, Ryu S. Acute Stress Modulates Social Approach and Social Maintenance in Adult Zebrafish. eNeuro 2023; 10:ENEURO.0491-22.2023. [PMID: 37620148 PMCID: PMC10493981 DOI: 10.1523/eneuro.0491-22.2023] [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: 12/01/2022] [Revised: 06/13/2023] [Accepted: 06/15/2023] [Indexed: 08/26/2023] Open
Abstract
Stress alters social functioning in a complex manner. An important variable determining the final effects of stress is stressor intensity. However, the precise relationship between stressor intensity and social behavior is not well understood. Here, we investigate the effects of varying acute stressor intensity exposure on social behavior using adult zebrafish. We first establish a novel test using adult zebrafish that allows distinguishing fish's drive to approach a social cue and its ability to engage and maintain social interaction within the same behavioral paradigm. Next, we combined this test with a new method to deliver an acute stress stimulus of varying intensities. Our results show that both social approach and social maintenance are reduced in adult zebrafish on acute stress exposure in an intensity-dependent manner. Interestingly, lower stress intensity reduces social maintenance without affecting the social approach, while a higher stress level is required to alter social approach. These results provide evidence for a direct correlation between acute stressor intensity and social functioning and suggest that distinct steps in social behavior are modulated differentially by the acute stress level.
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Affiliation(s)
- Alexander Cook
- Institute of Human Genetics, University Medical Center of Johannes Gutenberg University Mainz, 55116, Mainz, Germany
| | - Holger Beckmann
- Institute of Human Genetics, University Medical Center of Johannes Gutenberg University Mainz, 55116, Mainz, Germany
- Living Systems Institute, Faculty of Health and Life Sciences, University of Exeter, Exeter, EX4 4QD, United Kingdom
| | - Rutkay Azap
- Max Planck Institute for Medical Research, 69120, Heidelberg, Germany
| | - Soojin Ryu
- Institute of Human Genetics, University Medical Center of Johannes Gutenberg University Mainz, 55116, Mainz, Germany
- Living Systems Institute, Faculty of Health and Life Sciences, University of Exeter, Exeter, EX4 4QD, United Kingdom
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Li X, Laplante DP, Elgbeili G, King S. Preconception and prenatal maternal stress are associated with broad autism phenotype in young adults: Project Ice Storm. J Dev Orig Health Dis 2023; 14:481-489. [PMID: 37282623 DOI: 10.1017/s2040174423000156] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 06/08/2023]
Abstract
Studies show associations between prenatal maternal stress (PNMS) and child autism, with little attention paid to PNMS and autism in young adulthood. The broad autism phenotype (BAP), encompassing sub-clinical levels of autism, includes aloof personality, pragmatic language impairment and rigid personality. It remains unclear whether different aspects of PNMS explain variance in different BAP domains in young adult offspring. We recruited women who were pregnant during, or within 3 months of, the 1998 Quebec ice storm crisis, and assessed three aspects of their stress (i.e., objective hardship, subjective distress and cognitive appraisal). At age 19, the young adult offspring (n = 33, 22F / 11M) completed a BAP self-report. Linear and logistic regressions were implemented to examine associations between PNMS and BAP traits. Up to 21.4% of the variance in BAP total score and in BAP three domains tended to be explained by at least one aspect of maternal stress, For example, 16.8% of the variance in aloof personality tended to be explained by maternal objective hardship; 15.1% of the variance in pragmatic language impairment tended to be explained by maternal subjective distress; 20.0% of the variance in rigid personality tended to be explained by maternal objective hardship and 14.3% by maternal cognitive appraisal. Given the small sample size, the results should be interpreted with caution. In conclusion, this small prospective study suggests that different aspects of maternal stress could have differential effects on different components of BAP traits in young adults.
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Affiliation(s)
- Xinyuan Li
- Integrated Program in Neuroscience, McGill University, Montreal, QC, Canada
- Douglas Mental Health University Institute, Montreal, QC, Canada
| | - David P Laplante
- Centre for Child Development and Mental Health, Lady Davis Institute-Jewish General Hospital, Montreal, QC, Canada
| | | | - Suzanne King
- Douglas Mental Health University Institute, Montreal, QC, Canada
- Department of Psychiatry, McGill University, Montreal, QC, Canada
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Maletta T, Palummieri M, Correa J, Holahan MR. Preadolescent exposure to a sexually mature, unrelated male rat reduces postadolescent social recognition memory and CA2 c-Fos labeling. Front Behav Neurosci 2023; 17:1104866. [PMID: 36778132 PMCID: PMC9908592 DOI: 10.3389/fnbeh.2023.1104866] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/22/2022] [Accepted: 01/13/2023] [Indexed: 01/27/2023] Open
Abstract
Introduction Social memory involves social recognition: the ability to discriminate between two or more conspecifics when one has been previously encountered. The CA2 region of the hippocampus has been implicated in social memory, as lesions and dysfunction to this area lead to social memory impairments. A variety of psychogenic manipulations during postnatal sensitive developmental periods are associated with social memory impairments later in life. Methods In this study, we exposed preadolescent rats to a sexually, mature unrelated male and examined whether this was associated with changes in postadolescent social memory and c-Fos labeling in the CA2 region. Male and female Long-Evans rats were exposed to a male, adult rat on postnatal days 19-21 (P19-21). Social memory was measured during the postadolescent period and defined as increased interactions towards a novel age-matched rat in contrast to a previously-encountered age-matched rat. After the test, rats were euthanized and brain tissue was then collected to quantify c-Fos labeling within the CA2 region. Results Compared to home cage controls and controls not exposed to the adult male, male and female rats exposed to the unrelated adult during preadolescence were unable to discriminate between a novel and previously encountered conspecific during the postadolescent test showing social memory deficits. The groups that showed social recognition deficits also had significantly fewer c-Fos-positive cells within the CA2 region compared to the control groups. Discussion These findings indicate that threatening psychogenic encounters during preadolescence can have detrimental long-term effects on social memory potentially via disrupted activity in the CA2 hippocampal region.
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Affiliation(s)
- Teresa Maletta
- Department of Neuroscience, Carleton University, Ottawa, ON, Canada
| | | | - Jeff Correa
- Department of Neuroscience, Carleton University, Ottawa, ON, Canada
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Houdelier C, Charrier M, Le Bot O, Aigueperse N, Marasco V, Lumineau S. The presence of a mother counteracts prenatal stress in a precocial bird. Anim Behav 2022. [DOI: 10.1016/j.anbehav.2022.09.015] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/28/2022]
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Mbiydzenyuy NE, Hemmings SMJ, Qulu L. Prenatal maternal stress and offspring aggressive behavior: Intergenerational and transgenerational inheritance. Front Behav Neurosci 2022; 16:977416. [PMID: 36212196 PMCID: PMC9539686 DOI: 10.3389/fnbeh.2022.977416] [Citation(s) in RCA: 11] [Impact Index Per Article: 5.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/24/2022] [Accepted: 08/22/2022] [Indexed: 11/13/2022] Open
Abstract
Even though studies have shown that prenatal maternal stress is associated with increased reactivity of the HPA axis, the association between prenatal maternal stress and fetal glucocorticoid exposure is complex and most likely dependent on unidentified and poorly understood variables including nature and timing of prenatal insults. The precise mechanisms in which prenatal maternal stress influence neuroendocrine signaling between the maternal-placental-fetal interface are still unclear. The aim of this review article is to bring comprehensive basic concepts about prenatal maternal stress and mechanisms of transmission of maternal stress to the fetus. This review covers recent studies showing associations between maternal stress and alterations in offspring aggressive behavior, as well as the possible pathways for the “transmission” of maternal stress to the fetus: (1) maternal-fetal HPA axis dysregulation; (2) intrauterine environment disruption due to variations in uterine artery flow; (3) epigenetic modifications of genes implicated in aggressive behavior. Here, we present evidence for the phenomenon of intergenerational and transgenerational transmission, to better understands the mechanism(s) of transmission from parent to offspring. We discuss studies showing associations between maternal stress and alterations in offspring taking note of neuroendocrine, brain architecture and epigenetic changes that may suggest risk for aggressive behavior. We highlight animal and human studies that focus on intergenerational transmission following exposure to stress from a biological mechanistic point of view, and maternal stress-induced epigenetic modifications that have potential to impact on aggressive behavior in later generations.
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Affiliation(s)
- Ngala Elvis Mbiydzenyuy
- Department of Basic Science, School of Medicine, Copperbelt University, Ndola, Zambia
- Division of Medical Physiology, Biomedical Science Research Institute, Stellenbosch University, Cape Town, South Africa
- *Correspondence: Ngala Elvis Mbiydzenyuy,
| | - Sian Megan Joanna Hemmings
- Department of Psychiatry, Faculty of Medicine and Health Sciences, Stellenbosch University, Cape Town, South Africa
| | - Lihle Qulu
- Division of Medical Physiology, Biomedical Science Research Institute, Stellenbosch University, Cape Town, South Africa
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Maikoo S, Wilkins A, Qulu L. The effect of oxytocin and an enriched environment on anxiety-like behaviour and corticosterone levels in a prenatally stressed febrile seizure rat model. IBRO Neurosci Rep 2022; 13:47-56. [PMID: 36590100 PMCID: PMC9795298 DOI: 10.1016/j.ibneur.2022.05.001] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/17/2021] [Revised: 04/30/2022] [Accepted: 05/03/2022] [Indexed: 02/01/2023] Open
Abstract
Background Febrile seizures (FS) are a neurological abnormality which occur following a fever that has resulted from a systemic infection and are characterised by convulsions. These convulsions occur due to abnormally increased signalling of interleukin-1 beta, resulting in increased neuronal hyper-excitability. Furthermore, exposure to prenatal stress has been shown to exacerbate seizure duration, elicit anxiety-like behaviour and corticosterone levels. Oxytocin is a neuropeptide with anxiolytic, social bonding, and stress regulation effects. Therefore, the aim of the study was to assess whether oxytocin can attenuate the anxiety-like behaviour and increased corticosterone in rat offspring exposed to prenatal stress and FS. Method Sprague Dawley rats were mated. On GND14, prenatal stress was induced on pregnant dams for 1 hr/7 days. On PND 14, rat pups were injected with lipopolysaccharide (LPS, 200 μg/kg, i.p.) followed 2.5 h later by an i.p. injection of kainic acid (KA, 1.75 mg/kg). Oxytocin (1 mg/kg) was induced via different routes (intraperitoneal or intranasal) as well an enriched environment between PND 22-26. The enriched environment included larger cages (1560 cm2) with only 4 pups per cage, compared to those groups not receiving enrichment (646 cm2), as well as cardboard rolls and plastic toys. On PND 27-33 the light/dark box and elevated plus maze were used to assess anxiety-like behaviour. On PND 34 all rats were euthanized using a sharp guillotine, trunk blood and hypothalamic tissue were collected for neurochemical analysis (ELISA kit). Results Our findings confirmed that exposure to both prenatal stress and febrile seizures resulted anxiety-like behaviour and significantly higher plasma corticosterone concentrations compared to their counterparts. Environmental enrichment was significantly effective in attenuating the increased basal corticosterone levels and anxiety-like behaviour seen in the prenatally stressed FS rat. Although direct administration of oxytocin showed higher significance in reducing corticosterone plasma levels when compared to the enriched environment. Furthermore, hypothalamic oxytocin levels were not significant in rat exposed to environmental enrichment while oxytocin treatment showed a significant effect when compared to their counterparts. Conclusion Therefore, oxytocin administration during early postnatal development shows great potential in reversing the effects of prenatal stress and its subsequent exacerbation of FS.
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Affiliation(s)
- Shreyal Maikoo
- HIV Pathogenesis Programme, Doris Duke Medical Research Institute, Nelson R. Mandela School of Medicine, University of KwaZulu-Natal, Durban, South Africa
| | - Andria Wilkins
- University of KwaZulu-Natal, College of Health Sciences, Department of Human Physiology, Durban, South Africa
| | - Lihle Qulu
- Stellenbosch University - Tygerberg Campus: Stellenbosch University Faculty of Medicine and Health Sciences, Capetown, South Africa,Corresponding author.
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Pillerová M, Borbélyová V, Pastorek M, Riljak V, Hodosy J, Frick KM, Tóthová L. Molecular actions of sex hormones in the brain and their potential treatment use in anxiety disorders. Front Psychiatry 2022; 13:972158. [PMID: 36159923 PMCID: PMC9492942 DOI: 10.3389/fpsyt.2022.972158] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/21/2022] [Accepted: 08/17/2022] [Indexed: 11/13/2022] Open
Abstract
Anxiety disorders are one of the most prevalent mood disorders that can lead to impaired quality of life. Current treatment of anxiety disorders has various adverse effects, safety concerns, or restricted efficacy; therefore, novel therapeutic targets need to be studied. Sex steroid hormones (SSHs) play a crucial role in the formation of brain structures, including regions of the limbic system and prefrontal cortex during perinatal development. In the brain, SSHs have activational and organizational effects mediated by either intracellular or transmembrane G-protein coupled receptors. During perinatal developmental periods, the physiological concentrations of SSHs lead to the normal development of the brain; however, the early hormonal dysregulation could result in various anxiety diorders later in life. Sex differences in the prevalence of anxiety disorders suggest that SSHs might be implicated in their development. In this review, we discuss preclinical and clinical studies regarding the role of dysregulated SSHs signaling during early brain development that modifies the risk for anxiety disorders in a sex-specific manner in adulthood. Moreover, our aim is to summarize potential molecular mechanisms by which the SSHs may affect anxiety disorders in preclinical research. Finally, the potential effects of SSHs in the treatment of anxiety disorders are discussed.
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Affiliation(s)
- Miriam Pillerová
- Faculty of Medicine, Institute of Molecular Biomedicine, Comenius University in Bratislava, Bratislava, Slovakia
| | - Veronika Borbélyová
- Faculty of Medicine, Institute of Molecular Biomedicine, Comenius University in Bratislava, Bratislava, Slovakia
| | - Michal Pastorek
- Faculty of Medicine, Institute of Molecular Biomedicine, Comenius University in Bratislava, Bratislava, Slovakia
| | - Vladimír Riljak
- First Faculty of Medicine, Institute of Physiology, Charles University, Prague, Czechia
| | - Július Hodosy
- Faculty of Medicine, Institute of Molecular Biomedicine, Comenius University in Bratislava, Bratislava, Slovakia
| | - Karyn M Frick
- Department of Psychology, University of Wisconsin-Milwaukee, Milwaukee, WI, United States
| | - L'ubomíra Tóthová
- Faculty of Medicine, Institute of Molecular Biomedicine, Comenius University in Bratislava, Bratislava, Slovakia
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Onaka T, Takayanagi Y. The oxytocin system and early-life experience-dependent plastic changes. J Neuroendocrinol 2021; 33:e13049. [PMID: 34713517 PMCID: PMC9286573 DOI: 10.1111/jne.13049] [Citation(s) in RCA: 15] [Impact Index Per Article: 5.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/03/2021] [Revised: 09/28/2021] [Accepted: 09/30/2021] [Indexed: 02/06/2023]
Abstract
Early-life experience influences social and emotional behaviour in adulthood. Affiliative tactile stimuli in early life facilitate the development of social and emotional behaviour, whereas early-life adverse stimuli have been shown to increase the risk of various diseases in later life. On the other hand, oxytocin has been shown to have organizational actions during early-life stages. However, the detailed mechanisms of the effects of early-life experience and oxytocin remain unclear. Here, we review the effects of affiliative tactile stimuli during the neonatal period and neonatal oxytocin treatment on the activity of the oxytocin-oxytocin receptor system and social or emotional behaviour in adulthood. Both affiliative tactile stimuli and early-life adverse stimuli in the neonatal period acutely activate the oxytocin-oxytocin receptor system in the brain but modulate social behaviour and anxiety-related behaviour apparently in an opposite direction in adulthood. Accumulating evidence suggests that affiliative tactile stimuli and exogenous application of oxytocin in early-life stages induce higher activity of the oxytocin-oxytocin receptor system in adulthood, although the effects are dependent on experimental procedures, sex, dosages and brain regions examined. On the other hand, early-life stressful stimuli appear to induce reduced activity of the oxytocin-oxytocin receptor system, possibly leading to adverse actions in adulthood. It is possible that activation of a specific oxytocin system can induce beneficial actions against early-life maltreatments and thus could be used for the treatment of developmental psychiatric disorders.
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Affiliation(s)
- Tatsushi Onaka
- Division of Brain and NeurophysiologyDepartment of PhysiologyJichi Medical UniversityTochigiJapan
| | - Yuki Takayanagi
- Division of Brain and NeurophysiologyDepartment of PhysiologyJichi Medical UniversityTochigiJapan
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Marchisella F, Creutzberg KC, Begni V, Sanson A, Wearick-Silva LE, Tractenberg SG, Orso R, Kestering-Ferreira É, Grassi-Oliveira R, Riva MA. Exposure to Prenatal Stress Is Associated With an Excitatory/Inhibitory Imbalance in Rat Prefrontal Cortex and Amygdala and an Increased Risk for Emotional Dysregulation. Front Cell Dev Biol 2021; 9:653384. [PMID: 34141707 PMCID: PMC8204112 DOI: 10.3389/fcell.2021.653384] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/14/2021] [Accepted: 04/07/2021] [Indexed: 12/17/2022] Open
Abstract
Epidemiological studies have shown that environmental insults and maternal stress during pregnancy increase the risk of several psychiatric disorders in the offspring. Converging lines of evidence from humans, as well as from rodent models, suggest that prenatal stress (PNS) interferes with fetal development, ultimately determining changes in brain maturation and function that may lead to the onset of neuropsychiatric disorders. From a molecular standpoint, transcriptional alterations are thought to play a major role in this context and may contribute to the behavioral phenotype by shifting the expression of genes related to excitatory and inhibitory (E/I) transmission balance. Nevertheless, the exact neurophysiological mechanisms underlying the enhanced vulnerability to psychopathology following PNS exposure are not well understood. In the present study, we used a model of maternal stress in rats to investigate the distal effects of PNS on the expression of genes related to glutamatergic and GABAergic neurotransmissions. We inspected two critical brain regions involved in emotion regulation, namely, the prefrontal cortex (PFC) and the amygdala (AMY), which we show to relate with the mild behavioral effects detected in adult rat offspring. We observed that PNS exposure promotes E/I imbalance in the PFC of adult males only, by dysregulating the expression of glutamatergic-related genes. Moreover, such an effect is accompanied by increased expression of the activity-dependent synaptic modulator gene Npas4 specifically in the PFC parvalbumin (PV)-positive interneurons, suggesting an altered regulation of synapse formation promoting higher PV-dependent inhibitory transmission and increased overall circuit inhibition in the PFC of males. In the AMY, PNS more evidently affects the transcription of GABAergic-related genes, shifting the balance toward inhibition. Collectively, our findings suggest that the E/I dysregulation of the PFC-to-AMY transmission may be a long-term signature of PNS and may contribute to increase the risk for mood disorder upon further stress.
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Affiliation(s)
- Francesca Marchisella
- Laboratory of Psychopharmacology and Molecular Psychiatry, Department of Pharmacological and Biomolecular Sciences, University of Milan, Milan, Italy
| | - Kerstin Camile Creutzberg
- Laboratory of Psychopharmacology and Molecular Psychiatry, Department of Pharmacological and Biomolecular Sciences, University of Milan, Milan, Italy
| | - Veronica Begni
- Laboratory of Psychopharmacology and Molecular Psychiatry, Department of Pharmacological and Biomolecular Sciences, University of Milan, Milan, Italy
| | - Alice Sanson
- Laboratory of Psychopharmacology and Molecular Psychiatry, Department of Pharmacological and Biomolecular Sciences, University of Milan, Milan, Italy
| | - Luis Eduardo Wearick-Silva
- Developmental Cognitive Neuroscience Lab, Brain Institute, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, Brazil
| | - Saulo Gantes Tractenberg
- Developmental Cognitive Neuroscience Lab, Brain Institute, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, Brazil
| | - Rodrigo Orso
- Developmental Cognitive Neuroscience Lab, Brain Institute, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, Brazil
| | - Érika Kestering-Ferreira
- Developmental Cognitive Neuroscience Lab, Brain Institute, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, Brazil
| | - Rodrigo Grassi-Oliveira
- Developmental Cognitive Neuroscience Lab, Brain Institute, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, Brazil.,Translational Neuropsychiatry Unit, Department of Clinical Medicine, Aarhus University, Aarhus, Denmark
| | - Marco Andrea Riva
- Laboratory of Psychopharmacology and Molecular Psychiatry, Department of Pharmacological and Biomolecular Sciences, University of Milan, Milan, Italy.,Biological Psychiatry Unit, IRCCS Istituto Centro San Giovanni di Dio Fatebenefratelli Brescia, Brescia, Italy
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Ellis BJ, Horn AJ, Carter CS, van IJzendoorn MH, Bakermans-Kranenburg MJ. Developmental programming of oxytocin through variation in early-life stress: Four meta-analyses and a theoretical reinterpretation. Clin Psychol Rev 2021; 86:101985. [DOI: 10.1016/j.cpr.2021.101985] [Citation(s) in RCA: 35] [Impact Index Per Article: 11.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Revised: 01/23/2021] [Accepted: 02/08/2021] [Indexed: 01/02/2023]
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14
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Aberrant Early in Life Stimulation of the Stress-Response System Affects Emotional Contagion and Oxytocin Regulation in Adult Male Mice. Int J Mol Sci 2021; 22:ijms22095039. [PMID: 34068684 PMCID: PMC8126076 DOI: 10.3390/ijms22095039] [Citation(s) in RCA: 9] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/10/2021] [Revised: 04/21/2021] [Accepted: 04/27/2021] [Indexed: 02/07/2023] Open
Abstract
Results over the last decades have provided evidence suggesting that HPA axis dysfunction is a major risk factor predisposing to the development of psychopathological behaviour. This susceptibility can be programmed during developmental windows of marked neuroplasticity, allowing early-life adversity to convey vulnerability to mental illness later in life. Besides genetic predisposition, also environmental factors play a pivotal role in this process, through embodiment of the mother's emotions, or via nutrients and hormones transferred through the placenta and the maternal milk. The aim of the current translational study was to mimic a severe stress condition by exposing female CD-1 mouse dams to abnormal levels of corticosterone (80 µg/mL) in the drinking water either during the last week of pregnancy (PreCORT) or the first one of lactation (PostCORT), compared to an Animal Facility Rearing (AFR) control group. When tested as adults, male mice from PostCORT offspring and somewhat less the PreCORT mice exhibited a markedly increased corticosterone response to acute restraint stress, compared to perinatal AFR controls. Aberrant persistence of adolescence-typical increased interest towards novel social stimuli and somewhat deficient emotional contagion also characterised profiles in both perinatal-CORT groups. Intranasal oxytocin (0 or 20.0 µg/kg) generally managed to reduce the stress response and restore a regular behavioural phenotype. Alterations in density of glucocorticoid and mineralocorticoid receptors, oxytocin and µ- and κ-opioid receptors were found. Changes differed as a function of brain areas and the specific age window of perinatal aberrant stimulation of the HPA axis. Present results provided experimental evidence in a translational mouse model that precocious adversity represents a risk factor predisposing to the development of psychopathological behaviour.
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Abramova O, Ushakova V, Zorkina Y, Zubkov E, Storozheva Z, Morozova A, Chekhonin V. The Behavior and Postnatal Development in Infant and Juvenile Rats After Ultrasound-Induced Chronic Prenatal Stress. Front Physiol 2021; 12:659366. [PMID: 33935805 PMCID: PMC8082110 DOI: 10.3389/fphys.2021.659366] [Citation(s) in RCA: 3] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2021] [Accepted: 03/23/2021] [Indexed: 01/30/2023] Open
Abstract
Fetal development is susceptible to environmental factors. One such factor is exposure to stress during pregnancy. The present study aimed to investigate the effects of chronic prenatal stress (PS) on the development and behavior of rat offspring during infancy and juvenile ages. Existing approaches to modeling prenatal stress on animals do not correlate with the main type of stress in pregnant women, namely psychological stress. We used a new stress paradigm in the experiment, namely, stress induced by exposure to variable frequency ultrasound (US), which acted on pregnant Wistar rats on gestational days 1–21. This type of stress in rodents can be comparable to psychological stress in humans. We assessed physical development, reflex maturation, motor ability development, anxious behavior, response to social novelty, and social play behavior in male and female offspring. Additionally, we investigated maternal behavior and the effect of neonatal handling (NH) on behavior. Prenatal stress did not affect postnatal developmental characteristics in rat pups, but prenatally stressed rats had higher body weight in early and adult age than controls. Prenatal exposure to a stressor increased anxiety in the open-field test (OF), changed social preferences in the social novelty test (SN), and impaired social play behavior in males. Neonatal handling reduced anxiety and restored social behavior, but evoked hyperactive behavior in rat pups. Maternal behavior did not change. Our study demonstrated for the first time that exposure to variable frequency ultrasound during pregnancy influences offspring development and impairs behavior, correlating with the effects of other types of stress during pregnancy in rodents. This supports the idea of using this exposure to model prenatal stress.
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Affiliation(s)
- Olga Abramova
- Department of Basic and Applied Neurobiology, V.P. Serbsky National Medical Research Center for Psychiatry and Narcology, Moscow, Russia.,Mental-health Clinic No. 1 Named After N.A. Alexeev of Moscow Healthcare Department, Moscow, Russia
| | - Valeria Ushakova
- Department of Basic and Applied Neurobiology, V.P. Serbsky National Medical Research Center for Psychiatry and Narcology, Moscow, Russia.,Mental-health Clinic No. 1 Named After N.A. Alexeev of Moscow Healthcare Department, Moscow, Russia.,Department of Biology, Lomonosov Moscow State University, Moscow, Russia
| | - Yana Zorkina
- Department of Basic and Applied Neurobiology, V.P. Serbsky National Medical Research Center for Psychiatry and Narcology, Moscow, Russia.,Mental-health Clinic No. 1 Named After N.A. Alexeev of Moscow Healthcare Department, Moscow, Russia
| | - Eugene Zubkov
- Department of Basic and Applied Neurobiology, V.P. Serbsky National Medical Research Center for Psychiatry and Narcology, Moscow, Russia
| | - Zinaida Storozheva
- Department of Basic and Applied Neurobiology, V.P. Serbsky National Medical Research Center for Psychiatry and Narcology, Moscow, Russia
| | - Anna Morozova
- Department of Basic and Applied Neurobiology, V.P. Serbsky National Medical Research Center for Psychiatry and Narcology, Moscow, Russia.,Mental-health Clinic No. 1 Named After N.A. Alexeev of Moscow Healthcare Department, Moscow, Russia
| | - Vladimir Chekhonin
- Department of Basic and Applied Neurobiology, V.P. Serbsky National Medical Research Center for Psychiatry and Narcology, Moscow, Russia.,Department of Medical Nanobiotechnology, Pirogov Russian National Research Medical University, Moscow, Russia
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16
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Kenkel W. Birth signalling hormones and the developmental consequences of caesarean delivery. J Neuroendocrinol 2021; 33:e12912. [PMID: 33145818 PMCID: PMC10590550 DOI: 10.1111/jne.12912] [Citation(s) in RCA: 14] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/28/2020] [Revised: 10/05/2020] [Accepted: 10/06/2020] [Indexed: 12/12/2022]
Abstract
Rates of delivery by caesarean section (CS) are increasing around the globe and, although several epidemiological associations have already been observed between CS and health outcomes in later life, more are sure to be discovered as this practice continues to gain popularity. The components of vaginal delivery that protect offspring from the negative consequences of CS delivery in later life are currently unknown, although much attention to date has focused on differences in microbial colonisation. Here, we present the case that differing hormonal experiences at birth may also contribute to the neurodevelopmental consequences of CS delivery. Levels of each of the 'birth signalling hormones' (oxytocin, arginine vasopressin, epinephrine, norepinephrine and the glucocorticoids) are lower following CS compared to vaginal delivery, and there is substantial evidence for each that manipulations in early life results in long-term neurodevelopmental consequences. We draw from the research traditions of neuroendocrinology and developmental psychobiology to suggest that the perinatal period is a sensitive period, during which hormones achieve organisational effects. Furthermore, there is much to be learned from research on developmental programming by early-life stress that may inform research on CS, as a result of shared neuroendocrine mechanisms at work. We compare and contrast the effects of early-life stress with those of CS delivery and propose new avenues of research based on the links between the two bodies of literature. The research conducted to date suggests that the differences in hormone signalling seen in CS neonates may produce long-term neurodevelopmental consequences.
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Affiliation(s)
- William Kenkel
- Department of Psychological and Brain Sciences, University of Delaware, Newark, DE, USA
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17
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Fitzgerald E, Hor K, Drake AJ. Maternal influences on fetal brain development: The role of nutrition, infection and stress, and the potential for intergenerational consequences. Early Hum Dev 2020; 150:105190. [PMID: 32948364 PMCID: PMC7481314 DOI: 10.1016/j.earlhumdev.2020.105190] [Citation(s) in RCA: 45] [Impact Index Per Article: 11.3] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
An optimal early life environment is crucial for ensuring ideal neurodevelopmental outcomes. Brain development consists of a finely tuned series of spatially and temporally constrained events, which may be affected by exposure to a sub-optimal intra-uterine environment. Evidence suggests brain development may be particularly vulnerable to factors such as maternal nutrition, infection and stress during pregnancy. In this review, we discuss how maternal factors such as these can affect brain development and outcome in offspring, and we also identify evidence which suggests that the outcome can, in many cases, be stratified by socio-economic status (SES), with individuals in lower brackets typically having a worse outcome. We consider the relevant epidemiological evidence and draw parallels to mechanisms suggested by preclinical work where appropriate. We also discuss possible transgenerational effects of these maternal factors and the potential mechanisms involved. We conclude that modifiable factors such as maternal nutrition, infection and stress are important contributors to atypical brain development and that SES also likely has a key role.
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Affiliation(s)
- Eamon Fitzgerald
- University/British Heart Foundation Centre for Cardiovascular Science, University of Edinburgh, The Queen's Medical Research Institute, 47 Little France Crescent, Edinburgh EH16 4TJ, UK
| | - Kahyee Hor
- University/British Heart Foundation Centre for Cardiovascular Science, University of Edinburgh, The Queen's Medical Research Institute, 47 Little France Crescent, Edinburgh EH16 4TJ, UK
| | - Amanda J Drake
- University/British Heart Foundation Centre for Cardiovascular Science, University of Edinburgh, The Queen's Medical Research Institute, 47 Little France Crescent, Edinburgh EH16 4TJ, UK.
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18
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Hernández A, Olvera-Hernández S, Fernández-Guasti A. Lack of interaction between prenatal stress and prenatal letrozole to induce same-sex preference in male rats. Physiol Behav 2020; 224:113042. [PMID: 32619527 DOI: 10.1016/j.physbeh.2020.113042] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/14/2020] [Revised: 06/12/2020] [Accepted: 06/28/2020] [Indexed: 12/29/2022]
Abstract
Same-sex partner preference between males has been observed in all species in which this behavior has been studied. Disruption of brain estradiol synthesis during development has been proposed as one of the biological causes underlying this behavior in some mammals. In support of this possibility, perinatal administration of aromatase inhibitors (such as letrozole) to male rat pups, induces around half of them to have same-sex preference and female sexual behavior in adulthood. Another putative factor that modifies sex preference is prenatal stress. Several stress protocols, applied to the pregnant dam, cause some of the adult male progeny to have an increased male preference, a decreased preference for the female, and lordosis behavior. Interestingly, these effects of stress might be mediated by its inhibitory action on brain aromatase. The aim of the present study was to analyze a possible interaction between these two factors in male rats. Pregnant dams were exposed to one of the four treatments across gestation days 10-22 (G10-G22): 1) vehicle-treated non-stressed controls; 2) letrozole (0.56 µg/kg); 3) 30 min immobilization stress); 4) both letrozole and stress combined. The male offspring were tested in adulthood for partner preference in a three-chambered arena, where we also recorded the masculine and feminine sexual behaviors. One week later males were tested for masculine and feminine sexual behavior in cylindrical arenas where they interacted for 30 min with a receptive female and thereafter with a sexually active male for another 30 min. Letrozole, stress and their combination resulted in same-sex preference in 40, 31 and 50% of males, respectively, compared to 5% in the control group. In the sexual behavior tests, prenatal stress reduced the percentage of males displaying intromissions and ejaculation (impaired masculinization), while letrozole mainly increased lordosis (impaired defeminization). The males prenatally submitted to stress and treated with letrozole presented these behavioral features but did not differ from both treatments given independently. The results indicate that the changes induced by stress or the aromatase inhibition produced by letrozole only accounts for a shift in partner preference in around half of the males and that there was no interaction between these two factors.
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Affiliation(s)
- Alejandra Hernández
- Pharmacobiology Department. Center of Research and Advanced Studies of IPN (CINVESTAV), México
| | - Sandra Olvera-Hernández
- Medical and Psychology School, Autonomous University of Baja California, Tijuana, B.C., México
| | - Alonso Fernández-Guasti
- Pharmacobiology Department. Center of Research and Advanced Studies of IPN (CINVESTAV), México..
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19
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Khambadkone SG, Cordner ZA, Tamashiro KLK. Maternal stressors and the developmental origins of neuropsychiatric risk. Front Neuroendocrinol 2020; 57:100834. [PMID: 32084515 PMCID: PMC7243665 DOI: 10.1016/j.yfrne.2020.100834] [Citation(s) in RCA: 32] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/05/2019] [Revised: 01/23/2020] [Accepted: 02/12/2020] [Indexed: 12/14/2022]
Abstract
The maternal environment during pregnancy is critical for fetal development and perinatal perturbations can prime offspring disease risk. Here, we briefly review evidence linking two well-characterized maternal stressors - psychosocial stress and infection - to increased neuropsychiatric risk in offspring. In the current climate of increasing obesity and globalization of the Western-style diet, maternal overnutrition emerges as a pressing public health concern. We focus our attention on recent epidemiological and animal model evidence showing that, like psychosocial stress and infection, maternal overnutrition can also increase offspring neuropsychiatric risk. Using lessons learned from the psychosocial stress and infection literature, we discuss how altered maternal and placental physiology in the setting of overnutrition may contribute to abnormal fetal development and resulting neuropsychiatric outcomes. A better understanding of converging pathophysiological pathways shared between stressors may enable development of interventions against neuropsychiatric illnesses that may be beneficial across stressors.
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Affiliation(s)
- Seva G Khambadkone
- Department of Psychiatry & Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA; Cellular & Molecular Medicine Graduate Program, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Zachary A Cordner
- Department of Psychiatry & Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA
| | - Kellie L K Tamashiro
- Department of Psychiatry & Behavioral Sciences, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA; Cellular & Molecular Medicine Graduate Program, Johns Hopkins University School of Medicine, Baltimore, MD 21205, USA.
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20
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Brydges NM, Hall J, Best C, Rule L, Watkin H, Drake AJ, Lewis C, Thomas KL, Hall J. Childhood stress impairs social function through AVP-dependent mechanisms. Transl Psychiatry 2019; 9:330. [PMID: 31819033 PMCID: PMC6901493 DOI: 10.1038/s41398-019-0678-0] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/21/2019] [Revised: 11/19/2019] [Accepted: 11/27/2019] [Indexed: 12/12/2022] Open
Abstract
Impaired social function is a core feature of many psychiatric illnesses. Adverse experiences during childhood increase risk for mental illness, however it is currently unclear whether stress early in life plays a direct role in the development of social difficulties. Using a rat model of pre-pubertal stress (PPS), we investigated effects on social behaviour, oxytocin and arginine vasopressin (AVP) in the periphery (plasma) and centrally in the paraventricular and supraoptic hypothalamic nuclei. We also explored social performance and AVP expression (plasma) in participants with borderline personality disorder (BPD) who experienced a high incidence of childhood stress. Social behaviour was impaired and AVP expression increased in animals experiencing PPS and participants with BPD. Behavioural deficits in animals were rescued through administration of the AVPR1a antagonist Relcovaptan (SR49059). AVP levels and recognition of negative emotions were significantly correlated in BPD participants only. In conclusion, early life stress plays a role in the precipitation of social dysfunction, and AVP mediates at least part of this effect.
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Affiliation(s)
- Nichola M Brydges
- Neuroscience and Mental Health Research Institute, Cardiff University, Hadyn Ellis Building, Maindy Road, Cardiff, CF24 4HQ, UK.
| | - Jessica Hall
- National Centre for Mental Health, Cardiff University, Hadyn Ellis Building, Maindy Road, Cardiff, CF24 4HQ, UK
| | - Caroline Best
- Neuroscience and Mental Health Research Institute, Cardiff University, Hadyn Ellis Building, Maindy Road, Cardiff, CF24 4HQ, UK
| | - Lowenna Rule
- Neuroscience and Mental Health Research Institute, Cardiff University, Hadyn Ellis Building, Maindy Road, Cardiff, CF24 4HQ, UK
| | - Holly Watkin
- Neuroscience and Mental Health Research Institute, Cardiff University, Hadyn Ellis Building, Maindy Road, Cardiff, CF24 4HQ, UK
| | - Amanda J Drake
- University/BHF Centre for Cardiovascular Science, University of Edinburgh, Edinburgh, UK
| | - Catrin Lewis
- National Centre for Mental Health, Cardiff University, Hadyn Ellis Building, Maindy Road, Cardiff, CF24 4HQ, UK
| | - Kerrie L Thomas
- Neuroscience and Mental Health Research Institute, Cardiff University, Hadyn Ellis Building, Maindy Road, Cardiff, CF24 4HQ, UK
- School of Biosciences, Cardiff University, Museum Avenue, Cardiff, CF10 3AX, UK
| | - Jeremy Hall
- Neuroscience and Mental Health Research Institute, Cardiff University, Hadyn Ellis Building, Maindy Road, Cardiff, CF24 4HQ, UK
- MRC Centre for Neuropsychiatric Genetics and Genomics, Cardiff University, Hadyn Ellis Building, Maindy Road, Cardiff, CF24 4HQ, UK
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21
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Seebacher F, Krause J. Epigenetics of Social Behaviour. Trends Ecol Evol 2019; 34:818-830. [DOI: 10.1016/j.tree.2019.04.017] [Citation(s) in RCA: 16] [Impact Index Per Article: 3.2] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/20/2018] [Revised: 04/04/2019] [Accepted: 04/29/2019] [Indexed: 12/27/2022]
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22
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Weidner MT, Lardenoije R, Eijssen L, Mogavero F, De Groodt LPMT, Popp S, Palme R, Förstner KU, Strekalova T, Steinbusch HWM, Schmitt-Böhrer AG, Glennon JC, Waider J, van den Hove DLA, Lesch KP. Identification of Cholecystokinin by Genome-Wide Profiling as Potential Mediator of Serotonin-Dependent Behavioral Effects of Maternal Separation in the Amygdala. Front Neurosci 2019; 13:460. [PMID: 31133792 PMCID: PMC6524554 DOI: 10.3389/fnins.2019.00460] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/27/2019] [Accepted: 04/24/2019] [Indexed: 01/05/2023] Open
Abstract
Converging evidence suggests a role of serotonin (5-hydroxytryptamine, 5-HT) and tryptophan hydroxylase 2 (TPH2), the rate-limiting enzyme of 5-HT synthesis in the brain, in modulating long-term, neurobiological effects of early-life adversity. Here, we aimed at further elucidating the molecular mechanisms underlying this interaction, and its consequences for socio-emotional behaviors, with a focus on anxiety and social interaction. In this study, adult, male Tph2 null mutant (Tph2 -/-) and heterozygous (Tph2 +/-) mice, and their wildtype littermates (Tph2 +/+) were exposed to neonatal, maternal separation (MS) and screened for behavioral changes, followed by genome-wide RNA expression and DNA methylation profiling. In Tph2 -/- mice, brain 5-HT deficiency profoundly affected socio-emotional behaviors, i.e., decreased avoidance of the aversive open arms in the elevated plus-maze (EPM) as well as decreased prosocial and increased rule breaking behavior in the resident-intruder test when compared to their wildtype littermates. Tph2 +/- mice showed an ambiguous profile with context-dependent, behavioral responses. In the EPM they showed similar avoidance of the open arm but decreased prosocial and increased rule breaking behavior in the resident-intruder test when compared to their wildtype littermates. Notably, MS effects on behavior were subtle and depended on the Tph2 genotype, in particular increasing the observed avoidance of EPM open arms in wildtype and Tph2 +/- mice when compared to their Tph2 -/- littermates. On the genomic level, the interaction of Tph2 genotype with MS differentially affected the expression of numerous genes, of which a subset showed an overlap with DNA methylation profiles at corresponding loci. Remarkably, changes in methylation nearby and expression of the gene encoding cholecystokinin, which were inversely correlated to each other, were associated with variations in anxiety-related phenotypes. In conclusion, next to various behavioral alterations, we identified gene expression and DNA methylation profiles to be associated with TPH2 inactivation and its interaction with MS, suggesting a gene-by-environment interaction-dependent, modulatory function of brain 5-HT availability.
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Affiliation(s)
- Magdalena T. Weidner
- Department of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience (MHeNs), Maastricht University, Maastricht, Netherlands
- Division of Molecular Psychiatry, Laboratory of Translational Neuroscience, Center of Mental Health, Department of Psychiatry, University of Würzburg, Würzburg, Germany
- Department of Psychiatry and Psychotherapy, Medical Center – University of Freiburg, Faculty of Medicine, University of Freiburg, Freiburg, Germany
| | - Roy Lardenoije
- Department of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience (MHeNs), Maastricht University, Maastricht, Netherlands
- Department of Psychiatry and Psychotherapy, Universitätsmedizin Göttingen, Georg-August-Universität, Göttingen, Germany
- Department of Psychiatry, McLean Hospital, Harvard Medical School, Belmont, MA, United States
| | - Lars Eijssen
- Department of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience (MHeNs), Maastricht University, Maastricht, Netherlands
- Departments of Bioinformatics, Psychiatry & Neuro Psychology, NUTRIM School of Nutrition and Translational Research in Metabolism, Maastricht University, Maastricht, Netherlands
| | - Floriana Mogavero
- Donders Institute for Brain, Cognition and Behaviour, Radboud University, Nijmegen, Netherlands
| | | | - Sandy Popp
- Division of Molecular Psychiatry, Laboratory of Translational Neuroscience, Center of Mental Health, Department of Psychiatry, University of Würzburg, Würzburg, Germany
| | - Rupert Palme
- Department of Biomedical Sciences, University of Veterinary Medicine, Vienna, Austria
| | - Konrad U. Förstner
- Core Unit Systems Medicine, Institute for Molecular Infection Biology, University of Würzburg, Würzburg, Germany
- ZB MED – Information Centre for Life Sciences, Cologne, Germany
- TH Köln, Faculty of Information Science and Communication Studies, Cologne, Germany
| | - Tatyana Strekalova
- Department of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience (MHeNs), Maastricht University, Maastricht, Netherlands
- Division of Molecular Psychiatry, Laboratory of Translational Neuroscience, Center of Mental Health, Department of Psychiatry, University of Würzburg, Würzburg, Germany
- Laboratory of Psychiatric Neurobiology, Institute of Molecular Medicine, I. M. Sechenov First Moscow State Medical University and Institute of General Pathology and Pathophysiology, Moscow, Russia
| | - Harry W. M. Steinbusch
- Department of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience (MHeNs), Maastricht University, Maastricht, Netherlands
| | - Angelika G. Schmitt-Böhrer
- Center of Mental Health, Department of Psychiatry, Psychosomatics and Psychotherapy, University Hospital of Würzburg, Würzburg, Germany
| | - Jeffrey C. Glennon
- Donders Institute for Brain, Cognition and Behaviour, Radboud University, Nijmegen, Netherlands
| | - Jonas Waider
- Division of Molecular Psychiatry, Laboratory of Translational Neuroscience, Center of Mental Health, Department of Psychiatry, University of Würzburg, Würzburg, Germany
| | - Daniel L. A. van den Hove
- Department of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience (MHeNs), Maastricht University, Maastricht, Netherlands
- Division of Molecular Psychiatry, Laboratory of Translational Neuroscience, Center of Mental Health, Department of Psychiatry, University of Würzburg, Würzburg, Germany
| | - Klaus-Peter Lesch
- Department of Psychiatry and Neuropsychology, School for Mental Health and Neuroscience (MHeNs), Maastricht University, Maastricht, Netherlands
- Division of Molecular Psychiatry, Laboratory of Translational Neuroscience, Center of Mental Health, Department of Psychiatry, University of Würzburg, Würzburg, Germany
- Laboratory of Psychiatric Neurobiology, Institute of Molecular Medicine, I. M. Sechenov First Moscow State Medical University and Institute of General Pathology and Pathophysiology, Moscow, Russia
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Russell JA, Brunton PJ. Giving a good start to a new life via maternal brain allostatic adaptations in pregnancy. Front Neuroendocrinol 2019; 53:100739. [PMID: 30802468 DOI: 10.1016/j.yfrne.2019.02.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 11/06/2018] [Revised: 01/29/2019] [Accepted: 02/21/2019] [Indexed: 12/23/2022]
Abstract
Successful pregnancy requires adjustments to multiple maternal homeostatic mechanisms, governed by the maternal brain to support and enable survival of the growing fetus and placenta. Such adjustments fit the concept of allostasis (stability through change) and have a cost: allostatic load. Allostasis is driven by ovarian, anterior pituitary, placental and feto-placental hormones acting on the maternal brain to promote adaptations that support the pregnancy and protect the fetus. Many women carry an existing allostatic load into pregnancy, from socio-economic circumstances, poor mental health and in 'developed' countries, also from obesity. These pregnancies have poorer outcomes indicating negative interactions (failing allostasis) between pre-pregnancy and pregnancy allostatic loads. Use of animal models, such as adult prenatally stressed female offspring with abnormal neuroendocrine, metabolic and behavioural phenotypes, to probe gene expression changes, and epigenetic mechanisms in the maternal brain in adverse pregnancies are discussed, with the prospect of ameliorating poor pregnancy outcomes.
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Affiliation(s)
- John A Russell
- Centre for Discovery Brain Sciences, University of Edinburgh, Edinburgh, Scotland, UK
| | - Paula J Brunton
- Centre for Discovery Brain Sciences, University of Edinburgh, Edinburgh, Scotland, UK; Zhejiang University-University of Edinburgh Institute, Haining, Zhejiang, PR China.
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24
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Holubová A, Poništ S, Jurčovičová J, Šlamberová R. Different Oxytocin Responses to Acute Methamphetamine Treatment in Juvenile Female Rats Perinatally Exposed to Stress and/or Methamphetamine Administration. Front Physiol 2019; 10:305. [PMID: 30984017 PMCID: PMC6447659 DOI: 10.3389/fphys.2019.00305] [Citation(s) in RCA: 8] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/08/2019] [Accepted: 03/07/2019] [Indexed: 01/08/2023] Open
Abstract
Methamphetamine (MA) is an addictive psychostimulant, often abused by drug-addicted women during pregnancy. The offspring of drug-addicted mothers are often exposed to perinatal stressors. The present study examines the effect of perinatal stressors and drug exposure on plasma oxytocin (OXY) levels in female progeny. Rat mothers were divided into three groups according to drug treatment during pregnancy: intact controls (C); saline (SA, s.c., 1 ml/kg); and MA (s.c., 5 mg/kg). Litters were divided into four groups according to postnatal stressors lasting from PD1 to 21: non-stressed controls (N); maternal separation (S); maternal cold-water stress (W); and maternal separation plus cold-water stress (SW). On postnatal day 30, acute MA or SA was administrated 1 h before the rats were sacrificed. Trunk blood was collected and plasma OXY was measured by specific ELISA after extraction. Our results showed that acute MA administration significantly increases plasma OXY levels in juvenile female rats; this effect was observed in prenatally intact rats only. Prenatal exposure of rats to mild stressor of daily SA injection prevented both acute MA-induced OXY stimulation and also stress-induced OXY inhibition. Although postnatal MA and stress exposure exert opposite effects on OXY release in juvenile rats, our data point out the modulatory role of prenatal mild stress in OXY response to postnatal stressors or MA treatment.
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Affiliation(s)
- Anna Holubová
- Department of Physiology, Third Faculty of Medicine, Charles University, Prague, Czechia
| | - Silvester Poništ
- Department of Physiology, Third Faculty of Medicine, Charles University, Prague, Czechia
| | - Jana Jurčovičová
- Department of Physiology, Third Faculty of Medicine, Charles University, Prague, Czechia
| | - Romana Šlamberová
- Department of Physiology, Third Faculty of Medicine, Charles University, Prague, Czechia
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Kraaijenvanger EJ, He Y, Spencer H, Smith AK, Bos PA, Boks MP. Epigenetic variability in the human oxytocin receptor (OXTR) gene: A possible pathway from early life experiences to psychopathologies. Neurosci Biobehav Rev 2019; 96:127-142. [DOI: 10.1016/j.neubiorev.2018.11.016] [Citation(s) in RCA: 20] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/13/2017] [Revised: 11/23/2018] [Accepted: 11/24/2018] [Indexed: 02/09/2023]
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Ogrizek M, Grgurevič N, Snoj T, Majdič G. Injections to pregnant mice produce prenatal stress that affects aggressive behavior in their adult male offspring. Horm Behav 2018; 106:35-43. [PMID: 30201533 DOI: 10.1016/j.yhbeh.2018.09.001] [Citation(s) in RCA: 4] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/23/2018] [Revised: 09/04/2018] [Accepted: 09/06/2018] [Indexed: 12/11/2022]
Abstract
Maternal stress could reprogram the developing fetal nervous system. A common target of maternal glucocorticoids is fetal neuro-endocrine axis. In the present study, pregnant mice were exposed to stress by injection and their male offspring were tested for sexual and aggressive behaviors in adult life. Three groups of pregnant mice were exposed to stress by sham syringe injection. The first group was injected on days 13, 14, and 15 p.c., the second group was injected on days 17 and 18 p.c., and the third group was injected daily from days 13 to 18 p.c. while control mice were not injected. Male offspring that were exposed to stress on days 13-18 p.c. and 17-18 p.c. were less aggressive and had lower blood testosterone levels in comparison to the control group. In male sexual behavior, there were no statistically significant differences between the groups. Body weight differed significantly with groups injected on days 13-18 p.c. and 13-15 p.c. having significantly higher body weight in adult life than the other two groups. After behavioral testing, brains were processed for immunohistochemical staining with antibodies against vasopressin (AVP) and calbindin (CALB). The expression of AVP and CALB in the lateral septum and in the preoptic area, respectively, did not differ between groups, suggesting that these two masculinization markers were not affected by prenatal stress. Present study therefore shows that even presumably mild and short prenatal stress weakens aggressive behavior of adult male mice, possibly due to reduced testosterone levels in blood.
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Affiliation(s)
- Monika Ogrizek
- Institute of Preclinical Sciences, Veterinary Faculty, University of Ljubljana, Gerbičeva 60, 1000 Ljubljana, Slovenia
| | - Neža Grgurevič
- Institute of Preclinical Sciences, Veterinary Faculty, University of Ljubljana, Gerbičeva 60, 1000 Ljubljana, Slovenia
| | - Tomaž Snoj
- Institute of Preclinical Sciences, Veterinary Faculty, University of Ljubljana, Gerbičeva 60, 1000 Ljubljana, Slovenia
| | - Gregor Majdič
- Institute of Preclinical Sciences, Veterinary Faculty, University of Ljubljana, Gerbičeva 60, 1000 Ljubljana, Slovenia; Institute of Physiology, Medical School, University of Maribor, Maribor, Slovenia.
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Russell AL, Tasker JG, Lucion AB, Fiedler J, Munhoz CD, Wu TYJ, Deak T. Factors promoting vulnerability to dysregulated stress reactivity and stress-related disease. J Neuroendocrinol 2018; 30:e12641. [PMID: 30144202 PMCID: PMC6181794 DOI: 10.1111/jne.12641] [Citation(s) in RCA: 31] [Impact Index Per Article: 5.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/19/2017] [Revised: 08/07/2018] [Accepted: 08/21/2018] [Indexed: 12/18/2022]
Abstract
Effective coordination of the biological stress response is integral for the behavioural well-being of an organism. Stress reactivity is coordinated by an interplay of the neuroendocrine system and the sympathetic nervous system. The hypothalamic-pituitary-adrenal (HPA) axis plays a key role in orchestrating the bodily responses to stress, and the activity of the axis can be modified by a wide range of experiential events. This review focuses on several factors that influence subsequent HPA axis reactivity. Some of these factors include early-life adversity, exposure to chronic stress, immune activation and traumatic brain injury. The central premise is that each of these experiences serves as a general vulnerability factor that accelerates future HPA axis reactivity in ways that make individuals more sensitive to stress challenges, therefore feeding forward into the exacerbation of ongoing (or greater susceptibility toward) future stress-related disease states, especially as they pertain to negative affect and overall brain health.
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Affiliation(s)
- Ashley L Russell
- Program in Neuroscience, Uniformed Services University, Bethesda, Maryland
- Center for Neuroscience and Regenerative Medicine, Bethesda, Maryland
| | - Jeffrey G Tasker
- Department of Cell and Molecular Biology, Tulane University, New Orleans, Los Angeles
| | - Aldo B Lucion
- Department of Physiology, Institute of Basic Health Sciences (ICBS), Federal University of Rio Grande do Sul (UFRGS), Porto Alegre, Rio Grande do Sul, Brazil
| | - Jenny Fiedler
- Department of Biochemistry and Molecular Biology, Chemical and Pharmaceutical Sciences Faculty, Universidad de Chile, Santiago, Chile
| | - Carolina D Munhoz
- Deparment of Pharmacology, Institute of Biomedical Science, University of São Paulo, São Paulo, Brazil
| | - Tao-Yiao John Wu
- Program in Neuroscience, Uniformed Services University, Bethesda, Maryland
- Center for Neuroscience and Regenerative Medicine, Bethesda, Maryland
- Department of Obstetrics and Gynecology, Uniformed Services University of the Health Sciences, Bethesda, Maryland
| | - Terrence Deak
- Developmental Exposure Alcohol Research Center (DEARC), Department of Psychology, Behavioral Neuroscience Program, Binghamton University, Binghamton, New York
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Soliani FCDBG, Cabbia R, Kümpel VD, Batistela MF, Almeida AG, Yamauchi Junior L, Andrade TGCSD. Unpredictable chronic prenatal stress and manifestation of generalized anxiety and panic in rat's offspring. Prog Neuropsychopharmacol Biol Psychiatry 2018; 85:89-97. [PMID: 29596996 DOI: 10.1016/j.pnpbp.2018.03.005] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/06/2017] [Revised: 02/19/2018] [Accepted: 03/06/2018] [Indexed: 12/21/2022]
Abstract
Often the manifestation of anxiety cannot be explained by known environmental or hereditary factors. With this perspective, it has been reported that prenatal stress may lead to emotional disturbances in the offspring. However, studies relating prenatal stress to anxiety are controversial and generally the stressors used do not mimicks the reality experienced by mothers. Thus, this investigation evaluated the effects of an unpredictable chronic stress scheme applied in one of the three gestational weeks of rats on the manifestation of generalized anxiety and panic disorder in the progeny (males), analyzing, respectively, the avoidances and escapes in the elevated T-maze, at the 1st, 3rd or 6th month of progeny life. Control offspring showed increased generalized anxiety disorder and reduced panic at 6 months. The effects of prenatal stress depended on the gestational week where it occurred and on the progeny age: during the 1st gestational week the generalized anxiety decreased in 6 month old rats. Animals in the 3rd month, prenatally stressed during the last gestational week, showed anxiogenesis and panicogenesis, but effects reverted at the 6th month, when they presented anxiolysis and no changes related to panic. Together the results show that not only the gestational period in which the aversive experience occurred was important, but the age of the evaluated progeny, since the type and the intensity of behaviors related to anxiety may vary with the developmental stage. For the model of stress used in the present study, the effects of prenatal stress were more prominent when the exposure occurred during the 3rd gestational week in rats.
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Affiliation(s)
| | - Rafael Cabbia
- Laboratory of Physiology, Department of Biological Sciences, São Paulo State University (Unesp), School of Sciences, Assis, SP, Brazil
| | - Vinícius Dias Kümpel
- Laboratory of Physiology, Department of Biological Sciences, São Paulo State University (Unesp), School of Sciences, Assis, SP, Brazil
| | - Matheus Fitipaldi Batistela
- Laboratory of Physiology, Department of Biological Sciences, São Paulo State University (Unesp), School of Sciences, Assis, SP, Brazil
| | - Amarylis Garcia Almeida
- Laboratory of Physiology, Department of Biological Sciences, São Paulo State University (Unesp), School of Sciences, Assis, SP, Brazil
| | - Luiz Yamauchi Junior
- Laboratory of Physiology, Department of Biological Sciences, São Paulo State University (Unesp), School of Sciences, Assis, SP, Brazil
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St-Cyr S, Abuaish S, Spinieli RL, McGowan PO. Maternal Predator Odor Exposure in Mice Programs Adult Offspring Social Behavior and Increases Stress-Induced Behaviors in Semi-Naturalistic and Commonly-Used Laboratory Tasks. Front Behav Neurosci 2018; 12:136. [PMID: 30050417 PMCID: PMC6050368 DOI: 10.3389/fnbeh.2018.00136] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/20/2018] [Accepted: 06/15/2018] [Indexed: 11/17/2022] Open
Abstract
Maternal stress has a profound impact on the long-term behavioral phenotype of offspring, including behavioral responses to stressful and social situations. In this study, we examined the effects of maternal exposure to predator odor, an ethologically relevant psychogenic stressor, on stress-induced behaviors in both semi-naturalistic and laboratory-based situations. Adult C57BL/6 mice offspring of dams exposed to predator odor during the last half of pregnancy showed increased anti-predatory behavior, more cautious foraging behavior and, in the elevated plus maze, avoidance of elevated open areas and elevated open areas following restraint stress challenge. These offspring also exhibited alterations in social behavior including reduced free interaction and increased initial investigation despite normal social recognition. These changes in behavior were associated with increased transcript abundance of corticotropin-releasing factor, mineralocorticoid receptor and oxytocin (Oxt) in the periventricular nucleus of the hypothalamus. Taken together, the findings are consistent with a long-term increase in ethologically-relevant behavioral and neural responses to stress in male and female offspring as a function of maternal predator odor exposure.
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Affiliation(s)
- Sophie St-Cyr
- Center for Environmental Epigenetics and Development, Department of Biological Sciences and Department of Cell and Systems Biology, University of Toronto Scarborough, Toronto, ON, Canada
| | - Sameera Abuaish
- Center for Environmental Epigenetics and Development, Department of Biological Sciences and Department of Cell and Systems Biology, University of Toronto Scarborough, Toronto, ON, Canada
| | - Richard L Spinieli
- Center for Environmental Epigenetics and Development, Department of Biological Sciences and Department of Cell and Systems Biology, University of Toronto Scarborough, Toronto, ON, Canada.,Psychobiology Graduate Program, School of Philosophy, Science and Literature, University of São Paulo, São Paulo, Brazil
| | - Patrick O McGowan
- Center for Environmental Epigenetics and Development, Department of Biological Sciences and Department of Cell and Systems Biology, University of Toronto Scarborough, Toronto, ON, Canada.,Department of Psychology, University of Toronto, Toronto, ON, Canada.,Department of Physiology, University of Toronto, Toronto, ON, Canada
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30
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Iturra-Mena AM, Arriagada-Solimano M, Luttecke-Anders A, Dagnino-Subiabre A. Effects of prenatal stress on anxiety- and depressive-like behaviours are sex-specific in prepubertal rats. J Neuroendocrinol 2018; 30:e12609. [PMID: 29772083 DOI: 10.1111/jne.12609] [Citation(s) in RCA: 22] [Impact Index Per Article: 3.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/28/2017] [Revised: 05/03/2018] [Accepted: 05/11/2018] [Indexed: 01/04/2023]
Abstract
The foetal brain is highly susceptible to stress in late pregnancy, with lifelong effects of stress on physiology and behaviour. The present study aimed to determine the physiological and behavioural effects of prenatal stress during the prepubertal period of female and male rats. We subjected pregnant Sprague-Dawley rats to a restraint stress protocol from gestational day 14 to 21, a critical period for foetal brain susceptibility to stress effects. Male and female offspring were subsequently assessed at postnatal day 24 for anxiety- and depressive-like behaviours, as well as spontaneous social interaction. We also assessed maternal behaviours and 2 stress markers: basal vs acute-evoked stress levels of serum corticosterone and body weight gain. Prenatal stress did not affect the maternal behaviour, whereas both female and male offspring had higher body weight gain. On the other hand, lower levels of corticosterone after acute stress stimulation, as well as anxiety- and depressive-like behaviours, were only evident in stressed males compared to control males. These results suggest that prenatal stress induced sex-specific effects on hypothalamic-pituitary-adrenal (HPA) axis activity and on behaviour during prepuberty. The HPA axis of prenatally stressed male rats was less active compared to control males, and they were also more anxious and experienced depressive-like behaviours. These results are useful with respect to studying the neurobiological basis of childhood depression at a preclinical level.
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Affiliation(s)
- A M Iturra-Mena
- Laboratory of Stress Neurobiology, Institute of Physiology, Faculty of Sciences, Universidad de Valparaíso, Valparaíso, Chile
- School of Psychology, Faculty of Social Sciences, Universidad de las Américas, Viña del Mar, Chile
| | - M Arriagada-Solimano
- Laboratory of Stress Neurobiology, Institute of Physiology, Faculty of Sciences, Universidad de Valparaíso, Valparaíso, Chile
| | - A Luttecke-Anders
- Laboratory of Stress Neurobiology, Institute of Physiology, Faculty of Sciences, Universidad de Valparaíso, Valparaíso, Chile
| | - A Dagnino-Subiabre
- Laboratory of Stress Neurobiology, Institute of Physiology, Faculty of Sciences, Universidad de Valparaíso, Valparaíso, Chile
- Auditory and Cognition Center, AUCO, Santiago, Chile
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31
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Wacker D, Ludwig M. The role of vasopressin in olfactory and visual processing. Cell Tissue Res 2018; 375:201-215. [PMID: 29951699 PMCID: PMC6335376 DOI: 10.1007/s00441-018-2867-1] [Citation(s) in RCA: 27] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/31/2018] [Accepted: 05/31/2018] [Indexed: 12/23/2022]
Abstract
Neural vasopressin is a potent modulator of behaviour in vertebrates. It acts at both sensory processing regions and within larger regulatory networks to mediate changes in social recognition, affiliation, aggression, communication and other social behaviours. There are multiple populations of vasopressin neurons within the brain, including groups in olfactory and visual processing regions. Some of these vasopressin neurons, such as those in the main and accessory olfactory bulbs, anterior olfactory nucleus, piriform cortex and retina, were recently identified using an enhanced green fluorescent protein-vasopressin (eGFP-VP) transgenic rat. Based on the interconnectivity of vasopressin-producing and sensitive brain areas and in consideration of autocrine, paracrine and neurohormone-like actions associated with somato-dendritic release, we discuss how these different neuronal populations may interact to impact behaviour.
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Affiliation(s)
- Douglas Wacker
- School of STEM (Division of Biological Sciences), University of Washington Bothell, Bothell, WA, USA.
| | - Mike Ludwig
- Centre for Discovery Brain Sciences, University of Edinburgh, Edinburgh, UK.,Centre for Neuroendocrinology, University of Pretoria, Pretoria, South Africa
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32
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Palumbo S, Mariotti V, Iofrida C, Pellegrini S. Genes and Aggressive Behavior: Epigenetic Mechanisms Underlying Individual Susceptibility to Aversive Environments. Front Behav Neurosci 2018; 12:117. [PMID: 29950977 PMCID: PMC6008527 DOI: 10.3389/fnbeh.2018.00117] [Citation(s) in RCA: 36] [Impact Index Per Article: 6.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/09/2018] [Accepted: 05/28/2018] [Indexed: 12/14/2022] Open
Abstract
Over the last two decades, the study of the relationship between nature and nurture in shaping human behavior has encountered a renewed interest. Behavioral genetics showed that distinct polymorphisms of genes that code for proteins that control neurotransmitter metabolic and synaptic function are associated with individual vulnerability to aversive experiences, such as stressful and traumatic life events, and may result in an increased risk of developing psychopathologies associated with violence. On the other hand, recent studies indicate that experiencing aversive events modulates gene expression by introducing stable changes to DNA without modifying its sequence, a mechanism known as “epigenetics”. For example, experiencing adversities during periods of maximal sensitivity to the environment, such as prenatal life, infancy and early adolescence, may introduce lasting epigenetic marks in genes that affect maturational processes in brain, thus favoring the emergence of dysfunctional behaviors, including exaggerate aggression in adulthood. The present review discusses data from recent research, both in humans and animals, concerning the epigenetic regulation of four genes belonging to the neuroendocrine, serotonergic and oxytocinergic pathways—Nuclear receptor subfamily 3-group C-member 1 (NR3C1), oxytocin receptor (OXTR), solute carrier-family 6 member 4 (SLC6A4) and monoamine oxidase A (MAOA)—and their role in modulating vulnerability to proactive and reactive aggressive behavior. Behavioral genetics and epigenetics are shedding a new light on the fine interaction between genes and environment, by providing a novel tool to understand the molecular events that underlie aggression. Overall, the findings from these studies carry important implications not only for neuroscience, but also for social sciences, including ethics, philosophy and law.
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Affiliation(s)
- Sara Palumbo
- Department of Surgical, Medical, Molecular Pathology and Critical Care, University of Pisa, Pisa, Italy
| | - Veronica Mariotti
- Department of Experimental and Clinical Medicine, University of Pisa, Pisa, Italy
| | | | - Silvia Pellegrini
- Department of Experimental and Clinical Medicine, University of Pisa, Pisa, Italy
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Effects of Methanol Fraction from Leaves of Schinus terebinthifolius Raddi on Nociception and Spinal-Cord Oxidative Biomarkers in Rats with Neuropathic Pain. EVIDENCE-BASED COMPLEMENTARY AND ALTERNATIVE MEDICINE 2018; 2018:5783412. [PMID: 29853960 PMCID: PMC5960562 DOI: 10.1155/2018/5783412] [Citation(s) in RCA: 11] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/30/2018] [Accepted: 04/02/2018] [Indexed: 01/05/2023]
Abstract
We determined the antioxidant potential of fractions obtained from leaves of Schinus terebinthifolius, a medicinal plant known in Brazil as aroeira, to select the fraction with the best yield and antioxidant performance. These qualities were found in the methanol fraction (MeF), which was administered intraperitoneally (20 mg/kg/day) for 3 and 10 days to rats with chronic constriction injury (CCI) of the sciatic nerve, a model of neuropathic pain. The MeF increased the mechanical and thermal thresholds that had been lowered by CCI. In parallel, the lumbosacral spinal cord showed an increase in superoxide dismutase but a decrease in glutathione peroxidase and glutathione-S-transferase activities in saline- and MeF-treated CCI rats. Catalase activity decreased only in saline-treated CCI rats for 10 days. Total thiols decreased in saline- and MeF-treated CCI rats. Ascorbic acid increased in these rats at day 3 but only in saline-treated CCI rats at day 10. No change was found in hydrogen peroxide and lipid hydroperoxide. Open-field and elevated plus-maze tests and blood parameters of liver function did not change. Thus, the MeF from leaves of S. terebinthifolius has an antinociceptive action with no toxic effects, and it affects oxidant biomarkers in the spinal cord of rats with CCI.
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Gatta E, Mairesse J, Deruyter L, Marrocco J, Van Camp G, Bouwalerh H, Lo Guidice JM, Morley-Fletcher S, Nicoletti F, Maccari S. Reduced maternal behavior caused by gestational stress is predictive of life span changes in risk-taking behavior and gene expression due to altering of the stress/anti-stress balance. Neurotoxicology 2018; 66:138-149. [PMID: 29630914 DOI: 10.1016/j.neuro.2018.04.005] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/26/2017] [Revised: 04/03/2018] [Accepted: 04/04/2018] [Indexed: 12/22/2022]
Abstract
Exposure of the mother to adverse events during pregnancy is known to induce pathological programming of the HPA axis in the progeny, thereby increasing the vulnerability to neurobehavioral disorders. Maternal care plays a crucial role in the programming of the offspring, and oxytocin plays a key role in mother/pup interaction. Therefore, we investigated whether positive modulation of maternal behavior by activation of the oxytocinergic system could reverse the long-term alterations induced by perinatal stress (PRS; gestational restraint stress 3 times/day during the last ten days of gestation) on HPA axis activity, risk-taking behavior in the elevated-plus maze, hippocampal mGlu5 receptor and gene expression in Sprague-Dawley rats. Stressed and control unstressed dams were treated during the first postpartum week with an oxytocin receptor agonist, carbetocin (1 mg/kg, i.p.). Remarkably, reduction of maternal behavior was predictive of behavioral disturbances in PRS rats as well as of the impairment of the oxytocin and its receptor gene expression. Postpartum carbetocin corrected the reduction of maternal behavior induced by gestational stress as well as the impaired oxytocinergic system in the PRS progeny, which was associated with reduced risk-taking behavior. Moreover, postpartum carbetocin had an anti-stress effect on HPA axis activity in the adult PRS progeny and increased hippocampal mGlu5 receptor expression in aging. In conclusion, the activation of the oxytocinergic system in the early life plays a protective role against the programming effect by adverse experiences and could be considered as a novel and powerful potential therapeutic target for stress-related disorders.
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Affiliation(s)
- Eleonora Gatta
- Center of Alcohol Research in Epigenetics, Psychiatric Institute, Department of Psychiatry, College of Medicine, University of Illinois at Chicago, Chicago, IL, 60612, United States
| | - Jérôme Mairesse
- Division of Neonatology, Department of Pediatrics, University of Geneva, Geneva, Switzerland
| | - Lucie Deruyter
- University of Lille, CNRS, UMR 8576, Unité de Glycobiologie Structurale et Fonctionnelle (UGSF), 59000 Lille, France
| | - Jordan Marrocco
- Laboratory of Neuroendocrinology, Rockefeller University, New York, NY, 10065, United States
| | - Gilles Van Camp
- University of Lille, CNRS, UMR 8576, Unité de Glycobiologie Structurale et Fonctionnelle (UGSF), 59000 Lille, France; Associated International Laboratory (LIA): "Perinatal Stress and Neurodegenerative Diseases", University of Lille, CNRS, UMR 8576 France, Sapienza University of Rome/IRCCS Neuromed, Italy
| | - Hammou Bouwalerh
- University of Lille, CNRS, UMR 8576, Unité de Glycobiologie Structurale et Fonctionnelle (UGSF), 59000 Lille, France; Associated International Laboratory (LIA): "Perinatal Stress and Neurodegenerative Diseases", University of Lille, CNRS, UMR 8576 France, Sapienza University of Rome/IRCCS Neuromed, Italy
| | - Jean-Marc Lo Guidice
- University of Lille, CHU Lille, Institut Pasteur de Lille, EA 4483: Impact de l'Environnement Chimique sur la Santé Humaine (IMPECS), 59000 Lille, France
| | - Sara Morley-Fletcher
- University of Lille, CNRS, UMR 8576, Unité de Glycobiologie Structurale et Fonctionnelle (UGSF), 59000 Lille, France; Associated International Laboratory (LIA): "Perinatal Stress and Neurodegenerative Diseases", University of Lille, CNRS, UMR 8576 France, Sapienza University of Rome/IRCCS Neuromed, Italy.
| | - Ferdinando Nicoletti
- IRCCS Neuromed, 86077 Pozzilli, Italy; Department of Pharmacology, Sapienza University of Rome, 00185 Rome, Italy
| | - Stefania Maccari
- University of Lille, CNRS, UMR 8576, Unité de Glycobiologie Structurale et Fonctionnelle (UGSF), 59000 Lille, France; IRCCS Neuromed, 86077 Pozzilli, Italy
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Spencer KA. Developmental stress and social phenotypes: integrating neuroendocrine, behavioural and evolutionary perspectives. Philos Trans R Soc Lond B Biol Sci 2018; 372:rstb.2016.0242. [PMID: 28673918 DOI: 10.1098/rstb.2016.0242] [Citation(s) in RCA: 35] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Accepted: 01/25/2017] [Indexed: 01/19/2023] Open
Abstract
The social world is filled with different types of interactions, and social experience interacts with stress on several different levels. Activation of the neuroendocrine axis that regulates the response to stress can have consequences for innumerable behavioural responses, including social decision-making and aspects of sociality, such as gregariousness and aggression. This is especially true for stress experienced during early life, when physiological systems are developing and highly sensitive to perturbation. Stress at this time can have persistent effects on social behaviours into adulthood. One important question remaining is to what extent these effects are adaptive. This paper initially reviews the current literature investigating the complex relationships between the hypothalamic-pituitary-adrenal (HPA) axis and other neuroendocrine systems and several aspects of social behaviour in vertebrates. In addition, the review explores the evidence surrounding the potential for 'social programming' via differential development and activation of the HPA axis, providing an insight into the potential for positive effects on fitness following early life stress. Finally, the paper provides a framework from which novel investigations could work to fully understand the adaptive significance of early life effects on social behaviours.This article is part of the themed issue 'Physiological determinants of social behaviour in animals'.
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Affiliation(s)
- Karen A Spencer
- School of Psychology and Neuroscience, University of St Andrews, South Street, St Andrews KY16 9JP, UK
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36
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St-Cyr S, McGowan PO. Adaptation or pathology? The role of prenatal stressor type and intensity in the developmental programing of adult phenotype. Neurotoxicol Teratol 2018; 66:113-124. [DOI: 10.1016/j.ntt.2017.12.003] [Citation(s) in RCA: 10] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/09/2017] [Revised: 10/25/2017] [Accepted: 12/04/2017] [Indexed: 01/06/2023]
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Abstract
The endogenous oxytocin system plays a vital role in facilitating parturition, lactation and social interaction in humans and other mammals. It also impacts on a number of important endocrine, immune and neurotransmitter systems. A well-regulated oxytocin system has been proposed to increase resilience, and therefore reduce the likelihood of an individual developing mental illness or substance dependence. This review discusses the adverse external influences that can modulate oxytocin receptor and protein levels and impact on substance use and mental health. The paper highlights the impact of adversity such as poor maternal care, parental substance use and child abuse or neglect. We review clinical and preclinical data on the impact of adversity on the basis of the time of exposure from infancy and early childhood, to adolescence, adulthood to older age. Previous research suggests that dysregulation of the endogenous oxytocin system may be implicated in determining susceptibility to stress, anxiety, addiction and mental health conditions. The impact of external influence seems to be strongest in specific time periods where the system shows experience-based development or natural fluctuations in oxytocin levels. Interventions that target the oxytocin system during or soon after exposure to adversity may prove protective.
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Colonnello V, Petrocchi N, Farinelli M, Ottaviani C. Positive Social Interactions in a Lifespan Perspective with a Focus on Opioidergic and Oxytocinergic Systems: Implications for Neuroprotection. Curr Neuropharmacol 2018; 15:543-561. [PMID: 27538784 PMCID: PMC5543675 DOI: 10.2174/1570159x14666160816120209] [Citation(s) in RCA: 23] [Impact Index Per Article: 3.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/10/2015] [Revised: 03/05/2016] [Accepted: 08/14/2016] [Indexed: 12/19/2022] Open
Abstract
In recent years, a growing interest has emerged in the beneficial effects of positive social interactions on health. The present work aims to review animal and human studies linking social interactions and health throughout the lifespan, with a focus on current knowledge of the possible mediating role of opioids and oxytocin. During the prenatal period, a positive social environment contributes to regulating maternal stress response and protecting the fetus from exposure to maternal active glucocorticoids. Throughout development, positive social contact with the caregiver acts as a “hidden regulator” and promotes infant neuroaffective development. Postnatal social neuroprotection interventions involving caregiver–infant physical contact seem to be crucial for rescuing preterm infants at risk for neurodevelopmental disorders. Attachment figures and friendships in adulthood continue to have a protective role for health and brain functioning, counteracting brain aging. In humans, implementation of meditative practices that promote compassionate motivation and prosocial behavior appears beneficial for health in adolescents and adults. Human and animal studies suggest the oxytocinergic and opioidergic systems are important mediators of the effects of social interactions. However, most of the studies focus on a specific phase of life (i.e., adulthood). Future studies should focus on the role of opioids and oxytocin in positive social interactions adopting a lifespan perspective.
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Affiliation(s)
- Valentina Colonnello
- Department of Experimental, Diagnostic and Specialty Medicine, University of Bologna, Bologna. Italy
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Heslin K, Coutellier L. Npas4 deficiency and prenatal stress interact to affect social recognition in mice. GENES BRAIN AND BEHAVIOR 2018; 17:e12448. [PMID: 29227584 DOI: 10.1111/gbb.12448] [Citation(s) in RCA: 15] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 07/03/2017] [Revised: 11/30/2017] [Accepted: 12/07/2017] [Indexed: 01/21/2023]
Abstract
Neurodevelopmental disorders such as autism spectrum disorders and schizophrenia have an expansive array of reported genetic and environmental contributing factors. However, none of these factors alone can account for a substantial proportion of cases of either disorder. Instead, many gene-by-environment interactions are responsible for neurodevelopmental disturbances that lead to these disorders. The current experiment used heterozygous knock-out mice to examine a potential interaction between 2 factors commonly linked to neurodevelopmental disorders and cognitive deficit: imbalanced excitatory/inhibitory signaling in the cortex and prenatal stress (PNS) exposure. Both of these factors have been linked to disrupt GABAergic signaling in the prefrontal cortex (PFC), a common feature of neurodevelopmental disorders. The neuronal PAS domain protein 4 (Npas4) gene is instrumental in regulation of the excitatory/inhibitory balance in the cortex and hippocampus in response to activation. Npas4 heterozygous and wild-type male and female mice were exposed to either PNS or standard gestation, then evaluated during adulthood in social and anxiety behavioral measures. The combination of PNS and Npas4 deficiency in male mice impaired social recognition. This behavioral deficit was associated with decreased parvalbumin and cFos protein expression in the infralimbic region of the PFC following social stimulation in Npas4 heterozygous males. In contrast, females displayed fewer behavioral effects and molecular changes in PFC in response to PNS and decreased Npas4.
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Affiliation(s)
- K Heslin
- Department of Psychology, The Ohio State University, Columbus, Ohio
| | - L Coutellier
- Department of Psychology, The Ohio State University, Columbus, Ohio.,Department of Neuroscience, The Ohio State University, Columbus, Ohio
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Becker JB, McClellan ML, Reed BG. Sex differences, gender and addiction. J Neurosci Res 2017; 95:136-147. [PMID: 27870394 DOI: 10.1002/jnr.23963] [Citation(s) in RCA: 326] [Impact Index Per Article: 46.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/01/2016] [Revised: 09/17/2016] [Accepted: 09/19/2016] [Indexed: 12/13/2022]
Abstract
This review discusses alcohol and other forms of drug addiction as both a sociocultural and biological phenomenon. Sex differences and gender are not solely determined by biology, nor are they entirely sociocultural. The interactions among biological, environmental, sociocultural, and developmental influences result in phenotypes that may be more masculine or more feminine. These gender-related sex differences in the brain can influence the responses to drugs of abuse, progressive changes in the brain after exposure to drugs of abuse and whether addiction results from drug-taking experiences. In addition, the basic laboratory evidence for sex differences is discussed within the context of four types of sex/gender differences. © 2016 Wiley Periodicals, Inc.
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Affiliation(s)
- Jill B Becker
- Department of Psychology and the Molecular and Behavioral Neuroscience Institute, University of Michigan, Ann Arbor, MI, 48109
| | - Michele L McClellan
- Department of History and the Residential College, University of Michigan, Ann Arbor, MI, 48109
| | - Beth Glover Reed
- School of Social Work and the Department of Women's Studies, University of Michigan, Ann Arbor, MI, 48109
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Blaze J, Asok A, Borrelli K, Tulbert C, Bollinger J, Ronca AE, Roth TL. Intrauterine exposure to maternal stress alters Bdnf IV DNA methylation and telomere length in the brain of adult rat offspring. Int J Dev Neurosci 2017; 62:56-62. [PMID: 28330827 PMCID: PMC5600826 DOI: 10.1016/j.ijdevneu.2017.03.007] [Citation(s) in RCA: 28] [Impact Index Per Article: 4.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/31/2016] [Revised: 03/14/2017] [Accepted: 03/17/2017] [Indexed: 12/16/2022] Open
Abstract
DNA methylation (addition of methyl groups to cytosines) and changes in telomere length (TTAGGG repeats on the ends of chromosomes) are two molecular modifications that result from stress and could contribute to the long-term effects of intrauterine exposure to maternal stress on offspring behavior. Here, we measured methylation of DNA associated with the Brain-derived neurotrophic factor (Bdnf) gene, a gene important in development and plasticity, and telomere length in the brains of adult rat male and female offspring whose mothers were exposed to unpredictable and variable stressors throughout gestation. Males exposed to prenatal stress had greater methylation (Bdnf IV) in the medial prefrontal cortex (mPFC) compared to non-stressed male controls and stressed females. Further, prenatally-stressed animals had shorter telomeres than controls in the mPFC. Together findings indicate a long-term impact of prenatal stress on brain DNA methylation and telomere biology with relevance for behavioral and health outcomes, and contribute to a growing literature linking stress to intergenerational molecular changes.
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Affiliation(s)
- Jennifer Blaze
- Department of Psychological and Brain Sciences, University of Delaware, Newark, DE,United States
| | - Arun Asok
- Department of Psychological and Brain Sciences, University of Delaware, Newark, DE,United States
| | - Kristyn Borrelli
- Department of Psychological and Brain Sciences, University of Delaware, Newark, DE,United States
| | - Christina Tulbert
- Obstetrics and Gynecology, Wake Forest School of Medicine, Winston-Salem, NC, United States
| | - Justin Bollinger
- Obstetrics and Gynecology, Wake Forest School of Medicine, Winston-Salem, NC, United States
| | - April E Ronca
- Obstetrics and Gynecology, Wake Forest School of Medicine, Winston-Salem, NC, United States; Program in Neuroscience, Wake Forest School of Medicine, Winston-Salem, NC, United States; Space Biosciences Research Division, NASA Ames Research Center, Moffett Field, CA
| | - Tania L Roth
- Department of Psychological and Brain Sciences, University of Delaware, Newark, DE,United States.
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Soliani FCDBG, Cabbia R, Batistela MF, Almeida AG, Kümpel VD, Yamauchi Junior L, de Andrade TGCS. Impact of social separation during pregnancy on the manifestation of defensive behaviors related to generalized anxiety and panic throughout offspring development. PLoS One 2017; 12:e0185572. [PMID: 29036201 PMCID: PMC5642899 DOI: 10.1371/journal.pone.0185572] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/16/2016] [Accepted: 09/01/2017] [Indexed: 11/21/2022] Open
Abstract
The multiple insecurities, anatomical, physiological and psychological changes arising from the gestational period can generate an overload of stress in the mother and cause disturbances in the offspring, affecting it throughout its development. The existing analysis linking prenatal stress and offspring’s anxiety have divergent results, being limited as to gestational week, type of stressor and age of progeny’s assessment. Social separation has been described as a stressor that causes increase in anxiety. Thus, the present study evaluated the effects of social separation applied in one of the three gestational weeks of rat dams on the manifestation of the defensive behaviors related to generalized anxiety disorder and panic in the Elevated T Maze of the male progeny in three stages of development (1, 3 or 6 months of life). It was found, in the offspring of grouped (control) dams, increased behaviors associated with generalized anxiety disorder and a reduction of panic-like behaviors throughout development. For animals whose dams were socially separated during pregnancy, the most critical period of exposure was the 2nd gestational week, which affected the acquisition of aversive memory, demonstrated by the impairment on learning of avoidances of the offspring in all ages evaluated. Stressor exposure in this week also increased the avoidances, related to generalized anxiety of progeny in the 1st month and decreased escapes, related to panic in the 3rd month of life and, at the age of 6 months old, an inverse situation, with the reduction of the defensive behaviors associated to generalized anxiety disorder. The results show that, when assessing effects of prenatal stress on the manifestation of anxiety, not only the period of exposure is important, but also the age of offspring assessed.
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Affiliation(s)
| | - Rafael Cabbia
- Laboratory of Physiology, UNESP–Univ Estadual Paulista, Assis, São Paulo, Brazil
| | | | | | - Vinícius Dias Kümpel
- Laboratory of Physiology, UNESP–Univ Estadual Paulista, Assis, São Paulo, Brazil
| | - Luiz Yamauchi Junior
- Laboratory of Physiology, UNESP–Univ Estadual Paulista, Assis, São Paulo, Brazil
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Prenatal noise stress impairs HPA axis and cognitive performance in mice. Sci Rep 2017; 7:10560. [PMID: 28874680 PMCID: PMC5585382 DOI: 10.1038/s41598-017-09799-6] [Citation(s) in RCA: 43] [Impact Index Per Article: 6.1] [Reference Citation Analysis] [Abstract] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/10/2017] [Accepted: 07/28/2017] [Indexed: 11/11/2022] Open
Abstract
Noise stress is a common environmental pollutant whose adverse effect on offspring performance has been less studied. This study was novel in terms of using “noise” as a prenatal stress compared with physical stress to explore the effect of stress during gestation on HPA axis activation, cognitive performance, and motor coordination, as well as in investigating the effect of behavioral assessments on the corticosterone (CORT) levels. Three groups of C57BL/6 mice with a gestational history of either noise stress (NS), physical stress (PS), or no stress were examined in several behavioral tests. Plasma CORT level was significantly higher before starting the behavioral tests in NS group than the two other groups. It was significantly increased after the behavioral tests in both prenatal stressed groups relative to the controls. Stress caused anxiety-like behavior and reduced learning and memory performance in both stressed groups compared to the controls, as well as decreased motor coordination in the NS group relative to the other groups. The findings suggested that: prenatal NS severely changes the HPA axis; both prenatal stressors, and particularly NS, negatively impair the offspring’s cognitive and motor performance; and, they also cause a strong susceptibility to interpret environmental experiences as stressful conditions.
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van Bodegom M, Homberg JR, Henckens MJAG. Modulation of the Hypothalamic-Pituitary-Adrenal Axis by Early Life Stress Exposure. Front Cell Neurosci 2017; 11:87. [PMID: 28469557 PMCID: PMC5395581 DOI: 10.3389/fncel.2017.00087] [Citation(s) in RCA: 315] [Impact Index Per Article: 45.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/02/2017] [Accepted: 03/13/2017] [Indexed: 12/20/2022] Open
Abstract
Exposure to stress during critical periods in development can have severe long-term consequences, increasing overall risk on psychopathology. One of the key stress response systems mediating these long-term effects of stress is the hypothalamic-pituitary-adrenal (HPA) axis; a cascade of central and peripheral events resulting in the release of corticosteroids from the adrenal glands. Activation of the HPA-axis affects brain functioning to ensure a proper behavioral response to the stressor, but stress-induced (mal)adaptation of the HPA-axis' functional maturation may provide a mechanistic basis for the altered stress susceptibility later in life. Development of the HPA-axis and the brain regions involved in its regulation starts prenatally and continues after birth, and is protected by several mechanisms preventing corticosteroid over-exposure to the maturing brain. Nevertheless, early life stress (ELS) exposure has been reported to have numerous consequences on HPA-axis function in adulthood, affecting both its basal and stress-induced activity. According to the match/mismatch theory, encountering ELS prepares an organism for similar ("matching") adversities during adulthood, while a mismatching environment results in an increased susceptibility to psychopathology, indicating that ELS can exert either beneficial or disadvantageous effects depending on the environmental context. Here, we review studies investigating the mechanistic underpinnings of the ELS-induced alterations in the structural and functional development of the HPA-axis and its key external regulators (amygdala, hippocampus, and prefrontal cortex). The effects of ELS appear highly dependent on the developmental time window affected, the sex of the offspring, and the developmental stage at which effects are assessed. Albeit by distinct mechanisms, ELS induced by prenatal stressors, maternal separation, or the limited nesting model inducing fragmented maternal care, typically results in HPA-axis hyper-reactivity in adulthood, as also found in major depression. This hyper-activity is related to increased corticotrophin-releasing hormone signaling and impaired glucocorticoid receptor-mediated negative feedback. In contrast, initial evidence for HPA-axis hypo-reactivity is observed for early social deprivation, potentially reflecting the abnormal HPA-axis function as observed in post-traumatic stress disorder, and future studies should investigate its neural/neuroendocrine foundation in further detail. Interestingly, experiencing additional (chronic) stress in adulthood seems to normalize these alterations in HPA-axis function, supporting the match/mismatch theory.
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Affiliation(s)
| | | | - Marloes J. A. G. Henckens
- Department of Cognitive Neuroscience, Centre for Neuroscience, Donders Institute for Brain, Cognition and BehaviourRadboudumc, Nijmegen, Netherlands
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Nakhjiri E, Saboory E, Roshan-Milani S, Rasmi Y, Khalafkhani D. Effect of prenatal restraint stress and morphine co-administration on plasma vasopressin concentration and anxiety behaviors in adult rat offspring. Stress 2017; 20:205-211. [PMID: 28287019 DOI: 10.1080/10253890.2017.1306053] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/02/2023] Open
Abstract
Stressful events and exposure to opiates during gestation have important effects on the later mental health of the offspring. Anxiety is among the most common mental disorders. The present study aimed to identify effects of prenatal restraint stress and morphine co-administration on plasma vasopressin concentration (PVC) and anxiety behaviors in rats. Pregnant rats were divided into four groups (n = 6, each): saline, morphine, stress + saline and stress + morphine treatment. The stress procedure consisted of restraint twice per day, two hours per session, for three consecutive days starting on day 15 of pregnancy. Rats in the saline and morphine groups received either 0.9% saline or morphine intraperitoneally on the same days. In the morphine/saline + stress groups, rats were exposed to restraint stress and received either morphine or saline intraperitoneally. All offspring were tested in an elevated plus maze (EPM) on postnatal day 90 (n = 6, each sex), and anxiety behaviors of each rat were recorded. Finally, blood samples were collected to determine PVC. Prenatal morphine exposure reduced anxiety-like behaviors. Co-administration of prenatal stress and morphine increased locomotor activity (LA) and PVC. PVC was significantly lower in female offspring of the morphine and morphine + stress groups compared with males in the same group, but the opposite was seen in the saline + stress group. These data emphasize the impact of prenatal stress and morphine on fetal neuroendocrine development, with long-term changes in anxiety-like behaviors and vasopressin secretion. These changes are sex specific, indicating differential impact of prenatal stress and morphine on fetal neuroendocrine system development. Lay Summary Pregnant women are sometimes exposed to stressful and painful conditions which may lead to poor outcomes for offspring. Opiates may provide pain and stress relief to these mothers. In this study, we used an experimental model of maternal exposure to stress and morphine in pregnant rats. The findings indicated that maternal stress increased anxiety in offspring while morphine decreased such effects, but had negative effects on the levels of a hormone controlling blood pressure, and activity of offspring. Hence morphine should not be used in pregnancy for pain and stress relief.
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Affiliation(s)
- Elnaz Nakhjiri
- a Studental Research Committee , Urmia University of Medical Sciences , Urmia , Iran
| | - Ehsan Saboory
- b Neurophysiology Research Center, Urmia University of Medical Sciences , Urmia , Iran
| | - Shiva Roshan-Milani
- c Department of Physiology, Faculty of Medicine , Urmia University of Medical Sciences , Urmia , Iran
| | - Yousef Rasmi
- d Cellular and Molecular Research Center, Urmia University of Medical Sciences , Urmia , Iran
| | - Davod Khalafkhani
- d Cellular and Molecular Research Center, Urmia University of Medical Sciences , Urmia , Iran
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Oxytocin, a main breastfeeding hormone, prevents hypertension acquired in utero: A therapeutics preview. Biochim Biophys Acta Gen Subj 2016; 1861:3071-3084. [PMID: 27658996 DOI: 10.1016/j.bbagen.2016.09.020] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 06/13/2016] [Revised: 08/29/2016] [Accepted: 09/16/2016] [Indexed: 02/07/2023]
Abstract
Hypertension is a major risk factor for ischemic heart disease and stroke, leading causes of morbidity and death worldwide. Intrauterine growth restriction (IUGR), caused by an excess of glucocorticoid exposure to the fetus, produces an imbalance in oxidative stress altering many biochemical and epigenetic gene transcription processes exposing the fetus and neonate to the 'thrifty' phenotype and pervasive polymorphisms appearance damaging health, cognitive, and behavioral processes in later life. OT is a major regulator of oxidative stress radicals that plays a major role in neonatal maturation of the central nervous system and many peripheral tissues expressing oxytocin/oxytocin-receptor (OT/OTR) system in the early postnatal period. OT and OTR are damaged by IUGR and early stress. This review highlights the fact that hypertension is likely to be a legacy of preterm birth due to IUGR and failure to meet nutritional needs in early infancy when fed formula instead of breastfeeding or human milk.
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Prenatal stressors in rodents: Effects on behavior. Neurobiol Stress 2016; 6:3-13. [PMID: 28229104 PMCID: PMC5314420 DOI: 10.1016/j.ynstr.2016.08.004] [Citation(s) in RCA: 163] [Impact Index Per Article: 20.4] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 05/04/2016] [Revised: 08/07/2016] [Accepted: 08/08/2016] [Indexed: 12/13/2022] Open
Abstract
The current review focuses on studies in rodents published since 2008 and explores possible reasons for any differences they report in the effects of gestational stress on various types of behavior in the offspring. An abundance of experimental data shows that different maternal stressors in rodents can replicate some of the abnormalities in offspring behavior observed in humans. These include, anxiety, in juvenile and adult rats and mice, assessed in the elevated plus maze and open field tests and depression, detected in the forced swim and sucrose-preference tests. Deficits were reported in social interaction that is suggestive of pathology associated with schizophrenia, and in spatial learning and memory in adult rats in the Morris water maze test, but in most studies only males were tested. There were too few studies on the novel object recognition test at different inter-trial intervals to enable a conclusion about the effect of prenatal stress and whether any deficits are more prevalent in males. Among hippocampal glutamate receptors, NR2B was the only subtype consistently reduced in association with learning deficits. However, like in humans with schizophrenia and depression, prenatal stress lowered hippocampal levels of BDNF, which were closely correlated with decreases in hippocampal long-term potentiation. In mice, down-regulation of BDNF appeared to occur through the action of gene-methylating enzymes that are already increased above controls in prenatally-stressed neonates. In conclusion, the data obtained so far from experiments in rodents lend support to a physiological basis for the neurodevelopmental hypothesis of schizophrenia and depression.
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Borrow AP, Stranahan AM, Suchecki D, Yunes R. Neuroendocrine Regulation of Anxiety: Beyond the Hypothalamic-Pituitary-Adrenal Axis. J Neuroendocrinol 2016; 28. [PMID: 27318180 DOI: 10.1111/jne.12403] [Citation(s) in RCA: 20] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/31/2015] [Revised: 05/20/2016] [Accepted: 06/17/2016] [Indexed: 02/06/2023]
Abstract
The central nervous system regulates and responds to endocrine signals, and this reciprocal relationship determines emotional processing and behavioural anxiety. Although the hypothalamic-pituitary-adrenal (HPA) axis remains the best-characterised system for this relationship, other steroid and peptide hormones are increasingly recognised for their effects on anxiety-like behaviour and reward. The present review examines recent developments related to the role of a number of different hormones in anxiety, including pregnane neurosteroids, gut peptides, neuropeptides and hormonal signals derived from fatty acids. Findings from both basic and clinical studies suggest that these alternative systems may complement or occlude stress-induced changes in anxiety and anxiety-like behaviour. By broadening the scope of mechanisms for depression and anxiety, it may be possible to develop novel strategies to attenuate stress-related psychiatric conditions. The targets for these potential therapies, as discussed in this review, encompass multiple circuits and systems, including those outside of the HPA axis.
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Affiliation(s)
- A P Borrow
- Department of Biomedical Sciences, Colorado State University, Fort Collins, CO, USA
| | - A M Stranahan
- Department of Neuroscience and Regenerative Medicine, Medical College of Georgia, Georgia Regents University, Augusta, GA, USA
| | - D Suchecki
- Department of Psychobiology, Universidade Federal de São Paulo, São Paulo, Brazil
| | - R Yunes
- Instituto de Investigaciones Biomédicas, Facultad de Ciencias de la Salud, Universidad de Mendoza, Mendoza, Argentina
- Área de Farmacología, Facultad de Ciencias Médicas, Universidad Nacional de Cuyo, Mendoza, Argentina
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Unternaehrer E, Bolten M, Nast I, Staehli S, Meyer AH, Dempster E, Hellhammer DH, Lieb R, Meinlschmidt G. Maternal adversities during pregnancy and cord blood oxytocin receptor (OXTR) DNA methylation. Soc Cogn Affect Neurosci 2016; 11:1460-70. [PMID: 27107296 DOI: 10.1093/scan/nsw051] [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] [Received: 08/01/2015] [Accepted: 04/10/2016] [Indexed: 12/20/2022] Open
Abstract
The aim of this study was to investigate whether maternal adversities and cortisol levels during pregnancy predict cord blood DNA methylation of the oxytocin receptor (OXTR). We collected cord blood of 39 babies born to mothers participating in a cross-sectional study (N = 100) conducted in Basel, Switzerland (2007-10). Mothers completed the Inventory of Life Events (second trimester: T2), the Edinburgh Postnatal Depression Scale (EPDS, third trimester: T3), the Trier Inventory of Chronic Stress (TICS-K, 1-3 weeks postpartum) and provided saliva samples (T2, T3) for maternal cortisol profiles, as computed by the area under the curve with respect to ground (AUCg) or increase (AUCi) for the cortisol awakening response (CAR) and for diurnal cortisol profiles (DAY). OXTR DNA methylation was quantified using Sequenom EpiTYPER. The number of stressful life events (P = 0.032), EPDS score (P = 0.007) and cortisol AUCgs at T2 (CAR: P = 0.020; DAY: P = 0.024) were negatively associated with OXTR DNA methylation. Our findings suggest that distinct prenatal adversities predict decreased DNA methylation in a gene that is relevant for childbirth, maternal behavior and wellbeing of mother and offspring. If a reduced OXTR methylation increases OXTR expression, our findings could suggest an epigenetic adaptation to an adverse early environment.
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Affiliation(s)
- Eva Unternaehrer
- University of Basel, Department of Psychology, Division of Clinical Psychology and Epidemiology, 4055 Basel, Switzerland University of Basel, National Centre of Competence in Research (NCCR) Swiss Etiological Study of Adjustment and Mental Health (sesam), 4055 Basel, Switzerland Douglas Mental Health University Institute, McGill University, 6875 La Salle Boulevard, Montreal, QC H4H 1R3, Canada
| | - Margarete Bolten
- University of Basel, Child and Adolescent Psychiatric Hospital, 4058 Basel, Switzerland Ludwig-Maximilians-University Munich, Department of Psychology, 80802 Munich, Germany
| | - Irina Nast
- University of Basel, National Centre of Competence in Research (NCCR) Swiss Etiological Study of Adjustment and Mental Health (sesam), 4055 Basel, Switzerland Zurich University of Applied Sciences, School of Health Professions, 8401 Winterthur, Switzerland
| | - Simon Staehli
- University of Trier, Institute of Psychobiology, 54296 Trier, Germany
| | - Andrea H Meyer
- University of Basel, Department of Psychology, Division of Clinical Psychology and Epidemiology, 4055 Basel, Switzerland
| | - Emma Dempster
- University of Exeter Medical School, Exeter EX1 2LU, UK
| | | | - Roselind Lieb
- University of Basel, Department of Psychology, Division of Clinical Psychology and Epidemiology, 4055 Basel, Switzerland University of Basel, National Centre of Competence in Research (NCCR) Swiss Etiological Study of Adjustment and Mental Health (sesam), 4055 Basel, Switzerland
| | - Gunther Meinlschmidt
- University of Basel, Department of Psychology, Division of Clinical Psychology and Epidemiology, 4055 Basel, Switzerland University of Basel, National Centre of Competence in Research (NCCR) Swiss Etiological Study of Adjustment and Mental Health (sesam), 4055 Basel, Switzerland Ruhr-University Bochum, Faculty of Medicine, Universitaetsstrasse 150, 44801 Bochum, Germany
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50
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Grundwald NJ, Benítez DP, Brunton PJ. Sex-Dependent Effects of Prenatal Stress on Social Memory in Rats: A Role for Differential Expression of Central Vasopressin-1a Receptors. J Neuroendocrinol 2016; 28. [PMID: 26613552 PMCID: PMC4950027 DOI: 10.1111/jne.12343] [Citation(s) in RCA: 28] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/07/2015] [Revised: 11/07/2015] [Accepted: 11/23/2015] [Indexed: 01/09/2023]
Abstract
Prenatal stress (PNS) affects a number of traits in the offspring, including stress axis regulation, emotionality and cognition; however, much less is known about the effects of PNS on social memory and the underlying central mechanisms. In the present study, we investigated social preference, social memory under basal and stress conditions and olfactory memory for social and nonsocial odours in the adult offspring of dams exposed to social stress during late pregnancy. Given the key roles that the central oxytocin and vasopressin systems play in facilitating social memory, we further investigated the effects of PNS on the central expression of mRNA for oxytocin (Oxtr) and vasopressin-1a (Avpr1a) receptors. PNS did not affect social preference in either sex; however, social memory was impaired under basal conditions in PNS females but not PNS males. Accordingly, Avpr1a mRNA expression in the lateral septum and bed nucleus of stria terminalis (BNST) was unaltered in males but was significantly lower in PNS females compared to controls. No differences in Oxtr mRNA expression were detected between control and PNS offspring in either sex in any of the brain regions examined. Social memory deficits in PNS females persisted when social odours were used; however, this does not appear to be a result of impaired olfaction because memory for nonsocial odours was similar in control and PNS females. Under acute stress conditions, deficits in social memory were observed in both male and female control offspring; however, PNS males were unaffected. Moreover, acute stress facilitated social memory in PNS females and this was associated with an up-regulation of Avpr1a mRNA in the lateral septum and BNST. Our data support a role for altered signalling via central Avpr1a in PNS-induced sex-dependent changes in social memory and may have implications for understanding the aetiology of neurodevelopmental disorders characterised by social behaviour deficits in humans.
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Affiliation(s)
- N J Grundwald
- Division of Neurobiology, The Roslin Institute and R(D)SVS, University of Edinburgh, Midlothian, UK
| | - D P Benítez
- Division of Neurobiology, The Roslin Institute and R(D)SVS, University of Edinburgh, Midlothian, UK
| | - P J Brunton
- Division of Neurobiology, The Roslin Institute and R(D)SVS, University of Edinburgh, Midlothian, UK
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