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Alewel DI, Kodavanti UP. Neuroendocrine contribution to sex-related variations in adverse air pollution health effects. JOURNAL OF TOXICOLOGY AND ENVIRONMENTAL HEALTH. PART B, CRITICAL REVIEWS 2024; 27:287-314. [PMID: 39075643 DOI: 10.1080/10937404.2024.2383637] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 07/31/2024]
Abstract
Air pollution exposure is ranked as a leading environmental risk factor for not only cardiopulmonary diseases but also for systemic health ailments including diabetes, reproductive abnormalities, and neuropsychiatric disorders, likely mediated by central neural stress mechanisms. Current experimental evidence links many air pollution health outcomes with activation of neuroendocrine sympathetic-adrenal-medullary and hypothalamic-pituitary-adrenal (HPA) stress axes associated with resultant increases in adrenal-derived hormone levels acting as circulating mediators of multi-organ stress reactions. Epidemiological and experimental investigations also demonstrated sex-specific responses to air pollutant inhalation, which may be attributed to hormonal interactions within the stress and reproductive axes. Sex hormones (androgens and estrogens) interact with neuroendocrine functions to influence hypothalamic responses, subsequently augmenting stress-mediated metabolic and immune changes. These neurohormonal interactions may contribute to innate sex-specific responses to inhaled irritants, inducing differing individual susceptibility. The aim of this review was to: (1) examine neuroendocrine co-regulation of the HPA axis by gonadal hormones, (2) provide experimental evidence demonstrating sex-specific respiratory and systemic effects attributed to air pollutant inhalation exposure, and (3) postulate proposed mechanisms of stress and sex hormone interactions during air pollution-related stress.
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Affiliation(s)
- Devin I Alewel
- Oak Ridge Institute for Science and Education Research Participation Program, U.S. Environmental Protection Agency, Research Triangle Park, NC, USA
| | - Urmila P Kodavanti
- Public Health and Integrated Toxicology Division, Center for Public Health and Environmental Assessment, U.S. Environmental Protection Agency, Research Triangle Park, NC, USA
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Azimzadeh M, Noorbakhshnia M. Maternal linalool treatment protects against radiofrequency wave-induced deteriorations in adolescent rats: A behavioral and electrophysiological study. Sci Rep 2024; 14:17257. [PMID: 39060318 PMCID: PMC11282235 DOI: 10.1038/s41598-024-68103-5] [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: 03/23/2024] [Accepted: 07/19/2024] [Indexed: 07/28/2024] Open
Abstract
Recent years, the rapid advancement of technology has raised concerns. We studied the effects of prenatal exposure to 900 MHz radiofrequency (RF) from mobile phones and the protective effects of linalool on learning and memory, and anxiety in adolescent male and female offspring rats. Pregnant rats were divided into four groups: control, wave, wave + linalool, and linalool. Rats received linalool (25mg/kg) by gavage for 21 days. Irradiation was conducted from day 0 to day 21 of pregnancy. Offsprings underwent behavioral and electrophysiological tests on days 50 and 60 after birth. Exposure to RF during pregnancy caused anxiety-like behavior in the EPM test and impairment of learning and memory in the Morris water maze and shuttle box tests. Electrophysiological properties and synaptic plasticity of the dorsal hippocampal CA3-CA1 synapse showed a decrease in fEPSP amplitude and slope. The trace element levels in both male and female offspring were consistent across all groups compared to their respective controls. In the hippocampus tissue, the levels of Fe, Cu, and Mn, as well as the Cu/Zn ratio, were significantly higher in the exposed groups (wave groups) compared to their controls. Moreover, Zn levels were significantly lower in the hippocampus tissue of the exposed groups. Linalool administration mitigated the excessive increase in Fe, Cu, Mn, and Cu/Zn ratio and normalized the disrupted levels of trace elements, except for Zn levels in both male and female offspring. Sex differences were observed in the EPM and shuttle box tests, females were more sensitive than males. In summary, our study demonstrates that prenatal exposure to mobile phone radiation induces stress-like behaviors, disrupts learning and memory, alters hippocampal electrophysiological properties and trace element balance in offspring. Treatment with linalool mitigates these deleterious effects, highlighting its potential as a therapeutic intervention. These findings contribute to our understanding of the impact of prenatal environmental exposures on neurodevelopment and offer insights into potential strategies for neuroprotection.
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Affiliation(s)
- Mansour Azimzadeh
- Department of Plant and Animal Biology, Faculty of Biological Science and Technology, University of Isfahan, Isfahan, Iran
| | - Maryam Noorbakhshnia
- Department of Plant and Animal Biology, Faculty of Biological Science and Technology, University of Isfahan, Isfahan, Iran.
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3
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Lee JH, Meyer EJ, Nenke MA, Lightman SL, Torpy DJ. Cortisol, Stress, and Disease-Bidirectional Associations; Role for Corticosteroid-Binding Globulin? J Clin Endocrinol Metab 2024:dgae412. [PMID: 38941154 DOI: 10.1210/clinem/dgae412] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/14/2024] [Indexed: 06/30/2024]
Abstract
Selye described stress as a unified neurohormonal mechanism maintaining homeostasis. Acute stress system activation is adaptive through neurocognitive, catecholaminergic, and immunomodulation mechanisms, followed by a reset via cortisol. Stress system components, the sympathoadrenomedullary system, hypothalamic-pituitary-adrenal axis, and limbic structures are implicated in many chronic diseases by establishing an altered homeostatic state, allostasis. Consequent "primary stress system disorders" were popularly accepted, with phenotypes based on conditions such as Cushing syndrome, pheochromocytoma, and adrenal insufficiency. Cardiometabolic and major depressive disorders are candidates for hypercortisolemic etiology, contrasting the "hypocortisolemic symptom triad" of stress sensitivity, chronic fatigue, and pain. However, acceptance of chronic stress etiology requires cause-and-effect associations, and practical utility such as therapeutics altering stress system function. Inherent predispositions to stress system perturbations may be relevant. Glucocorticoid receptor (GR) variants have been associated with metabolic/neuropsychological states. The SERPINA6 gene encoding corticosteroid-binding globulin (CBG), was the sole genetic factor in a single-nucleotide variation-genome-wide association study linkage study of morning plasma cortisol, a risk factor for cardiovascular disease, with alterations in tissue-specific GR-related gene expression. Studies showed genetically predicted high cortisol concentrations are associated with hypertension and anxiety, and low CBG concentrations/binding affinity, with the hypocortisolemic triad. Acquired CBG deficiency in septic shock results in 3-fold higher mortality when hydrocortisone administration produces equivocal results, consistent with CBG's role in spatiotemporal cortisol delivery. We propose some stress system disorders result from constitutional stress system variants rather than stressors themselves. Altered CBG:cortisol buffering may influence interstitial cortisol ultradian surges leading to pathological tissue effects, an example of stress system variants contributing to stress-related disorders.
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Affiliation(s)
- Jessica H Lee
- Department of Medicine, Adelaide University, Adelaide, SA 5000, Australia
- Endocrine and Metabolic Unit, Royal Adelaide Hospital, Adelaide, SA 5000, Australia
| | - Emily Jane Meyer
- Department of Medicine, Adelaide University, Adelaide, SA 5000, Australia
- Endocrine and Metabolic Unit, Royal Adelaide Hospital, Adelaide, SA 5000, Australia
- Endocrine and Diabetes Services, The Queen Elizabeth Hospital, Woodville South, SA 5011, Australia
| | - Marni Anne Nenke
- Department of Medicine, Adelaide University, Adelaide, SA 5000, Australia
- Endocrine and Metabolic Unit, Royal Adelaide Hospital, Adelaide, SA 5000, Australia
- Endocrine and Diabetes Services, The Queen Elizabeth Hospital, Woodville South, SA 5011, Australia
| | - Stafford L Lightman
- Systems Neuroendocrinology Research Group, University of Bristol, Bristol, BS1 3NY, UK
| | - David J Torpy
- Department of Medicine, Adelaide University, Adelaide, SA 5000, Australia
- Endocrine and Metabolic Unit, Royal Adelaide Hospital, Adelaide, SA 5000, Australia
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Schwabe L. Memory Under Stress: From Adaptation to Disorder. Biol Psychiatry 2024:S0006-3223(24)01385-4. [PMID: 38880463 DOI: 10.1016/j.biopsych.2024.06.005] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/16/2024] [Revised: 05/02/2024] [Accepted: 06/10/2024] [Indexed: 06/18/2024]
Abstract
Stressful events are ubiquitous in everyday life. Exposure to these stressors initiates the temporally orchestrated release of a multitude of hormones, peptides, and neurotransmitters that target brain areas that have been critically implicated in learning and memory. This review summarizes recent insights on the profound impact of stress on 4 fundamental processes of memory: memory formation, memory contextualization, memory retrieval, and memory flexibility. Stress mediators instigate dynamic alterations in these processes, thereby facilitating efficient responding under stress and the creation of a decontextualized memory representation that can effectively aid coping with novel future threats. While they are generally adaptive, the same stress-related changes may contribute to the rigid behaviors, uncontrollable intrusions, and generalized fear responding seen in anxiety disorders and posttraumatic stress disorder. Drawing on recent discoveries in cognitive neuroscience and psychiatry, this review discusses how stress-induced alterations in memory processes can simultaneously foster adaptation to stressors and fuel psychopathology. The transition from adaptive to maladaptive changes in the impact of stress on memory hinges on the nuanced interplay of stressor characteristics and individual predispositions. Thus, taking individual differences in the cognitive response to stressors into account is essential for any successful treatment of stress-related mental disorders.
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Affiliation(s)
- Lars Schwabe
- Department of Cognitive Psychology, Institute of Psychology, Universität Hamburg, Hamburg, Germany.
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Lee S, Kim SY, Lee S, Jang S, Hwang ST, Kwon Y, Choi J, Kwon O. Ganoderma lucidum extract attenuates corticotropin-releasing hormone-induced cellular senescence in human hair follicle cells. iScience 2024; 27:109675. [PMID: 38706837 PMCID: PMC11068553 DOI: 10.1016/j.isci.2024.109675] [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: 10/10/2023] [Revised: 03/15/2024] [Accepted: 04/03/2024] [Indexed: 05/07/2024] Open
Abstract
Corticotropin-releasing hormone (CRH) is a key mediator in stress-induced hair growth inhibition. Here, we investigated the impact of stress-induced senescence and evaluated the potential of Ganoderma lucidum (GL) extract in mitigating CRH-induced senescence in human hair follicle cells (hHFCs). We show that CRH treatment increased the senescence-associated beta-galactosidase (SA-β-GAL) activity and reactive oxygen species (ROS) formation in hHFCs and suppressed alkaline phosphatase (ALP) activity and anagen-inducing genes. However, GL extract restored ALP activity and decreased the expression levels of anagen-related genes in CRH-treated hHFCs. It decreased SA-β-GAL activity, reduced ROS production, and prevented the phosphorylation of MAPK signaling pathways in CRH-related stress response. Moreover, GL reversed the CRH-induced inhibition of two-cell assemblage (TCA) elongation and Ki67 expression. GL extract attenuates stress-induced hair follicular senescence by delaying catagen entry and scavenging ROS. Our findings suggest that GL extract could be used for treating stress-induced hair loss.
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Affiliation(s)
- Sunhyoung Lee
- Department of Dermatology, Seoul National University College of Medicine, Laboratory of Cutaneous Aging and Hair Research, Biomedical Research Institute, Seoul National University Hospital, Institute of Human-Environment Interface Biology, Medical Research Center, Seoul National University, Seoul 03080, South Korea
- Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul 03080, South Korea
| | - So Young Kim
- Department of Dermatology, Seoul National University College of Medicine, Laboratory of Cutaneous Aging and Hair Research, Biomedical Research Institute, Seoul National University Hospital, Institute of Human-Environment Interface Biology, Medical Research Center, Seoul National University, Seoul 03080, South Korea
| | - Seunghee Lee
- Department of Dermatology, Seoul National University College of Medicine, Laboratory of Cutaneous Aging and Hair Research, Biomedical Research Institute, Seoul National University Hospital, Institute of Human-Environment Interface Biology, Medical Research Center, Seoul National University, Seoul 03080, South Korea
- Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul 03080, South Korea
| | - Sunhyae Jang
- Department of Dermatology, Seoul National University College of Medicine, Laboratory of Cutaneous Aging and Hair Research, Biomedical Research Institute, Seoul National University Hospital, Institute of Human-Environment Interface Biology, Medical Research Center, Seoul National University, Seoul 03080, South Korea
| | | | - Youngji Kwon
- R&I Center, COSMAX BTI, Seongnam, Gyeonggi-do, South Korea
| | - Jaehwan Choi
- R&I Center, COSMAX BTI, Seongnam, Gyeonggi-do, South Korea
| | - Ohsang Kwon
- Department of Dermatology, Seoul National University College of Medicine, Laboratory of Cutaneous Aging and Hair Research, Biomedical Research Institute, Seoul National University Hospital, Institute of Human-Environment Interface Biology, Medical Research Center, Seoul National University, Seoul 03080, South Korea
- Department of Biomedical Sciences, Seoul National University College of Medicine, Seoul 03080, South Korea
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Huang Z, Bai H, Yang Z, Zhang J, Wang P, Wang X, Zhang L. Bridging childhood to adulthood: the impact of early life stress on acute stress responses. Front Psychiatry 2024; 15:1391653. [PMID: 38699445 PMCID: PMC11064211 DOI: 10.3389/fpsyt.2024.1391653] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/26/2024] [Accepted: 03/28/2024] [Indexed: 05/05/2024] Open
Abstract
Background Childhood trauma exerts enduring impacts on the physical and psychological well-being of individuals in adulthood, influencing their daily functioning. This study aims to investigate the impact of childhood trauma on stress recovery in adults, concentrating on heart rate variations during acute stress exposure. Methods A cohort of 126 participants completed the Childhood Trauma Questionnaire (CTQ) and underwent the Trier Social Stress Test (TSST) to elicit acute stress, with continuous heart rate (HR) monitoring for stress recovery assessment. Results The results revealed a negative correlation between childhood trauma and stress recovery, prominently observed in instances of emotional neglect and abuse. Individuals with heightened childhood trauma exhibited protracted stress recovery following acute stress exposure. Conclusion Childhood traumatic experiences were associated with the recovery from acute stress, as indicated by heart rate indices. These findings contribute to the foundational framework for psychological interventions tailored to individuals with a history of childhood trauma.
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Affiliation(s)
- Zheng Huang
- Key Laboratory of Behavioral Science, Institute of Psychology, Chinese Academy of Sciences, Beijing, China
- Department of Psychology, University of Chinese Academy of Sciences, Beijing, China
| | - Huizhi Bai
- Key Laboratory of Modern Teaching Technology, Ministry of Education, Shaanxi Normal University, Xi’an, China
| | - Ziyu Yang
- Key Laboratory of Behavioral Science, Institute of Psychology, Chinese Academy of Sciences, Beijing, China
| | - Jingyu Zhang
- Key Laboratory of Behavioral Science, Institute of Psychology, Chinese Academy of Sciences, Beijing, China
- Department of Psychology, University of Chinese Academy of Sciences, Beijing, China
| | - Peishan Wang
- Key Laboratory of Behavioral Science, Institute of Psychology, Chinese Academy of Sciences, Beijing, China
- Department of Psychology, University of Chinese Academy of Sciences, Beijing, China
| | - Xiaoyu Wang
- Key Laboratory of Behavioral Science, Institute of Psychology, Chinese Academy of Sciences, Beijing, China
- Department of Psychology, University of Chinese Academy of Sciences, Beijing, China
| | - Liang Zhang
- Key Laboratory of Behavioral Science, Institute of Psychology, Chinese Academy of Sciences, Beijing, China
- Department of Psychology, University of Chinese Academy of Sciences, Beijing, China
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Wang H, Jia R, Zhang M, Fan W. The influence of stress on mental health among Chinese college students: The moderating role of psychological suzhi. Heliyon 2024; 10:e26699. [PMID: 38444499 PMCID: PMC10912246 DOI: 10.1016/j.heliyon.2024.e26699] [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: 05/12/2023] [Revised: 02/08/2024] [Accepted: 02/19/2024] [Indexed: 03/07/2024] Open
Abstract
Depending on its duration, stress can be divided into chronic and acute stress, both of which can be detrimental to an individual's mental health. Psychological suzhi may act as a protective factor that buffers the adverse effects of stress. This study aimed to explore the moderating role of psychological suzhi in the relationship between these two types of stress and mental health based on a dual-factor model of mental health. Study 1 explored the moderating role of psychological suzhi on the relationship between chronic stress and mental health using the Adolescent Self-Rating Life Events Check List, College Student Psychological Suzhi Scale Brief Mental Health Version, Satisfaction With Life Scale, and 12-item General Health Questionnaire to investigate 919 Chinese college students. A hierarchical regression model was used to examine the moderating effects. Study 2 examined the moderating role of psychological suzhi on the relationship between acute stress and mental health. Participants (N = 56) were classified into high (N = 30) and low (N = 26) psychological suzhi groups based on the Psychological Suzhi Scale. They completed the Trier Social Stress Test for Groups and a specific control condition, and their state anxiety and happiness levels were assessed. Data were analyzed using a mixed-design repeated-measures ANOVA. The results of Study 1 revealed that psychological suzhi moderated the influence of chronic stress on the negative indicator of mental health (psychological symptoms) (β = -0.18, t = -6.90, p < 0.001). The results of Study 2 showed that psychological suzhi moderated the effect of acute stress on the negative indicator of mental health (state anxiety) [F (1, 54) = 4.79, p < 0.05, η2 = 0.08]. Psychological suzhi can moderate the influence of both chronic and acute stress on the negative indicators of college students' mental health but cannot moderate the influence on the positive indicators of mental health.
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Affiliation(s)
- Huixin Wang
- Department of Applied Psychology, Binzhou Medical University, Yantai, China
| | - Ruxue Jia
- Psychological Center, Xinghua Fourth People's Hospital, Taizhou , China
| | - Min Zhang
- Department of Applied Psychology, Binzhou Medical University, Yantai, China
| | - Wenyi Fan
- Department of Applied Psychology, Binzhou Medical University, Yantai, China
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Bakhireva LN, Solomon E, Roberts MH, Ma X, Rai R, Wiesel A, Jacobson SW, Weinberg J, Milligan ED. Independent and Combined Effects of Prenatal Alcohol Exposure and Prenatal Stress on Fetal HPA Axis Development. Int J Mol Sci 2024; 25:2690. [PMID: 38473937 PMCID: PMC10932119 DOI: 10.3390/ijms25052690] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/19/2024] [Revised: 02/10/2024] [Accepted: 02/20/2024] [Indexed: 03/14/2024] Open
Abstract
Prenatal alcohol exposure (PAE) and prenatal stress (PS) are highly prevalent conditions known to affect fetal programming of the hypothalamic-pituitary-adrenal (HPA) axis. The objectives of this study were to assess the effect of light PAE, PS, and PAE-PS interaction on fetal HPA axis activity assessed via placental and umbilical cord blood biomarkers. Participants of the ENRICH-2 cohort were recruited during the second trimester and classified into the PAE and unexposed control groups. PS was assessed by the Perceived Stress Scale. Placental tissue was collected promptly after delivery; gene and protein analysis for 11β-HSD1, 11β-HSD2, and pCRH were conducted by qPCR and ELISA, respectively. Umbilical cord blood was analyzed for cortisone and cortisol. Pearson correlation and multivariable linear regression examined the association of PAE and PS with HPA axis biomarkers. Mean alcohol consumption in the PAE group was ~2 drinks/week. Higher PS was observed in the PAE group (p < 0.01). In multivariable modeling, PS was associated with pCRH gene expression (β = 0.006, p < 0.01), while PAE was associated with 11β-HSD2 protein expression (β = 0.56, p < 0.01). A significant alcohol-by-stress interaction was observed with respect to 11β-HSD2 protein expression (p < 0.01). Results indicate that PAE and PS may independently and in combination affect fetal programming of the HPA axis.
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Affiliation(s)
- Ludmila N. Bakhireva
- College of Pharmacy Substance Use Research and Education Center, University of New Mexico Health Sciences Center, Albuquerque, NM 87131, USA; (M.H.R.); (X.M.); (R.R.); (A.W.)
| | - Elizabeth Solomon
- Department of Neurosciences, University of New Mexico Health Sciences Center, Albuquerque, NM 87106, USA; (E.S.); (E.D.M.)
| | - Melissa H. Roberts
- College of Pharmacy Substance Use Research and Education Center, University of New Mexico Health Sciences Center, Albuquerque, NM 87131, USA; (M.H.R.); (X.M.); (R.R.); (A.W.)
| | - Xingya Ma
- College of Pharmacy Substance Use Research and Education Center, University of New Mexico Health Sciences Center, Albuquerque, NM 87131, USA; (M.H.R.); (X.M.); (R.R.); (A.W.)
| | - Rajani Rai
- College of Pharmacy Substance Use Research and Education Center, University of New Mexico Health Sciences Center, Albuquerque, NM 87131, USA; (M.H.R.); (X.M.); (R.R.); (A.W.)
| | - Alexandria Wiesel
- College of Pharmacy Substance Use Research and Education Center, University of New Mexico Health Sciences Center, Albuquerque, NM 87131, USA; (M.H.R.); (X.M.); (R.R.); (A.W.)
| | - Sandra W. Jacobson
- Department of Psychiatry and Behavioral Neurosciences, Wayne State University School of Medicine, Detroit, MI 48201, USA;
| | - Joanne Weinberg
- Department of Cellular and Physiological Sciences, Faculty of Medicine, Life Sciences Institute, University of British Columbia, Vancouver, BC V6T 1Z3, Canada;
| | - Erin D. Milligan
- Department of Neurosciences, University of New Mexico Health Sciences Center, Albuquerque, NM 87106, USA; (E.S.); (E.D.M.)
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de Kloet ER, Joëls M. The cortisol switch between vulnerability and resilience. Mol Psychiatry 2024; 29:20-34. [PMID: 36599967 DOI: 10.1038/s41380-022-01934-8] [Citation(s) in RCA: 12] [Impact Index Per Article: 12.0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/11/2022] [Revised: 12/14/2022] [Accepted: 12/16/2022] [Indexed: 01/06/2023]
Abstract
In concert with neuropeptides and transmitters, the end products of the hypothalamus-pituitary-adrenal (HPA) axis, the glucocorticoid hormones cortisol and corticosterone (CORT), promote resilience: i.e., the ability to cope with threats, adversity, and trauma. To exert this protective action, CORT activates mineralocorticoid receptors (MR) and glucocorticoid receptors (GR) that operate in a complementary manner -as an on/off switch- to coordinate circadian events, stress-coping, and adaptation. The evolutionary older limbic MR facilitates contextual memory retrieval and supports an on-switch in the selection of stress-coping styles at a low cost. The rise in circulating CORT concentration after stress subsequently activates a GR-mediated off-switch underlying recovery of homeostasis by providing the energy for restraining the primary stress reactions and promoting cognitive control over emotional reactivity. GR activation facilitates contextual memory storage of the experience to enable future stress-coping. Such complementary MR-GR-mediated actions involve rapid non-genomic and slower gene-mediated mechanisms; they are time-dependent, conditional, and sexually dimorphic, and depend on genetic background and prior experience. If coping fails, GR activation impairs cognitive control and promotes emotional arousal which eventually may compromise resilience. Such breakdown of resilience involves a transition to a chronic stress construct, where information processing is crashed; it leads to an imbalanced MR-GR switch and hence increased vulnerability. Novel MR-GR modulators are becoming available that may reset a dysregulated stress response system to reinstate the cognitive flexibility required for resilience.
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Affiliation(s)
- E Ronald de Kloet
- Division of Endocrinology, Department of Internal Medicine, Leiden University Medical Center, Leiden University, Leiden, The Netherlands.
- Leiden/Amsterdam Center of Drug Research, Leiden University, Leiden, The Netherlands.
| | - Marian Joëls
- Dept. Translational Neuroscience, University Medical Center Utrecht, Utrecht University, Utrecht, The Netherlands
- University Medical Center Groningen, University of Groningen, Groningen, The Netherlands
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Kim CY, Ko K, Choi SH, Jo M, Kim J, Yoon S, Yi IJ, Morán-Valero MI, Kwon MY, Sohn J, Yi SS. Effects of Saffron Extract (Affron ®) with 100 mg/kg and 200 mg/kg on Hypothalamic-Pituitary-Adrenal Axis and Stress Resilience in Chronic Mild Stress-Induced Depression in Wistar Rats. Nutrients 2023; 15:4855. [PMID: 38068714 PMCID: PMC10707924 DOI: 10.3390/nu15234855] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 10/09/2023] [Revised: 11/06/2023] [Accepted: 11/17/2023] [Indexed: 12/18/2023] Open
Abstract
Stress-related symptoms are a global concern, impacting millions of individuals, yet effective and safe treatments remain scarce. Although multiple studies have highlighted the stress- alleviating properties of saffron extract, the underlying mechanisms remain unclear. This study employs the unpredictable chronic mild stress (CMS) animal model to investigate the impact of a standardized saffron extract, Affron® (AFN), on hypothalamic-pituitary-adrenal (HPA) axis regulation and neuroplasticity in Wistar rats following repeated oral administration. The research evaluates AFN's effects on various stress-related parameters, including hypothalamic gene expression, stress hormone levels, and the sucrose preference test. In animals subjected to continuous unpredictable CMS, repetitive administration of AFN at doses of 100 mg/kg and 200 mg/kg effectively normalized HPA axis dysregulation and enhanced neuroplasticity. Increased concentrations of AFN demonstrated greater efficacy. Following AFN oral administration, adrenocorticotropic and corticosterone hormone levels exhibited significant or nearly significant reductions in comparison to subjects exposed to stress only. These changes align with the alleviation of stress and the normalization of the HPA axis. These findings elucidate AFN's role in stress mitigation, affirm its health benefits, validate its potential as a treatment for stress-related symptoms, confirm its physiological effectiveness, and emphasize its therapeutic promise.
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Affiliation(s)
- Chae-Young Kim
- BK21 Four Program, Department of Medical Science, Soonchunhyang University, Asan 31538, Republic of Korea;
| | - Kayoung Ko
- Department of Biomedical Laboratory Science, College of Medical Sciences, Soonchunhyang University, Asan 31538, Republic of Korea; (K.K.); (S.-H.C.); (M.J.)
| | - Seo-Hee Choi
- Department of Biomedical Laboratory Science, College of Medical Sciences, Soonchunhyang University, Asan 31538, Republic of Korea; (K.K.); (S.-H.C.); (M.J.)
| | - Miri Jo
- Department of Biomedical Laboratory Science, College of Medical Sciences, Soonchunhyang University, Asan 31538, Republic of Korea; (K.K.); (S.-H.C.); (M.J.)
| | - Jinhye Kim
- Central Lab., iCONNECTOME Co., Ltd., Cheonan 31168, Republic of Korea; (J.K.); (S.Y.)
| | - Sunmi Yoon
- Central Lab., iCONNECTOME Co., Ltd., Cheonan 31168, Republic of Korea; (J.K.); (S.Y.)
| | - Isaac Jinwon Yi
- Department of Cognitive Science, University of California, San Diego, CA 92093, USA;
| | | | - Min-Young Kwon
- Hyundai Bioland Co., Ltd., Ansan 15407, Republic of Korea; (M.-Y.K.); (J.S.)
| | - Johann Sohn
- Hyundai Bioland Co., Ltd., Ansan 15407, Republic of Korea; (M.-Y.K.); (J.S.)
| | - Sun-Shin Yi
- BK21 Four Program, Department of Medical Science, Soonchunhyang University, Asan 31538, Republic of Korea;
- Department of Biomedical Laboratory Science, College of Medical Sciences, Soonchunhyang University, Asan 31538, Republic of Korea; (K.K.); (S.-H.C.); (M.J.)
- Central Lab., iCONNECTOME Co., Ltd., Cheonan 31168, Republic of Korea; (J.K.); (S.Y.)
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Ferraro KF, Zaborenko CJ. Race, everyday discrimination, and cognitive function in later life. PLoS One 2023; 18:e0292617. [PMID: 37878577 PMCID: PMC10599523 DOI: 10.1371/journal.pone.0292617] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/23/2023] [Accepted: 09/25/2023] [Indexed: 10/27/2023] Open
Abstract
Discrimination is pernicious in many ways, but there are inconsistent findings regarding whether it is harmful to cognitive function in later life. To address the inconsistency, we use two closely related concepts of everyday discrimination to predict cognitive trajectories in a diverse sample. Using data from the Health and Retirement Study (HRS), we examine whether the frequency of discrimination, measured at baseline with six questions, is related to poorer cognitive function and change in function over time (2008-2016). Age at baseline ranged from 53 to 100. Growth curve models of initial cognitive function and change in function were estimated. Everyday global discrimination was associated with poorer initial cognition and slower declines over time, and these relationships were not moderated by race and ethnicity. By contrast, the relationship between everyday racial discrimination and cognition was moderated by race: more frequent everyday racial discrimination was associated with better initial cognitive function among Black adults but not among Hispanic and White adults. Discrimination is a multifaceted concept, and specific types of discrimination manifest lower or higher cognitive function during later life for White, Black, and Hispanic adults.
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Affiliation(s)
- Kenneth F. Ferraro
- Department of Sociology, Purdue University, West Lafayette, Indiana, United States of America
- Center on Aging and the Life Course, Purdue University, West Lafayette, Indiana, United States of America
| | - Callie J. Zaborenko
- Department of Sociology, Purdue University, West Lafayette, Indiana, United States of America
- Center on Aging and the Life Course, Purdue University, West Lafayette, Indiana, United States of America
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12
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Horváth K, Juhász B, Kuti D, Ferenczi S, Kovács KJ. Recruitment of Corticotropin-Releasing Hormone (CRH) Neurons in Categorically Distinct Stress Reactions in the Mouse Brain. Int J Mol Sci 2023; 24:11736. [PMID: 37511494 PMCID: PMC10380650 DOI: 10.3390/ijms241411736] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/03/2023] [Revised: 07/17/2023] [Accepted: 07/19/2023] [Indexed: 07/30/2023] Open
Abstract
Corticotropin-releasing hormone (CRH) neurons in the paraventricular hypothalamic nucleus (PVH) are in the position to integrate stress-related information and initiate adaptive neuroendocrine-, autonomic-, metabolic- and behavioral responses. In addition to hypophyseotropic cells, CRH is widely expressed in the CNS, however its involvement in the organization of the stress response is not fully understood. In these experiments, we took advantage of recently available Crh-IRES-Cre;Ai9 mouse line to study the recruitment of hypothalamic and extrahypothalamic CRH neurons in categorically distinct, acute stress reactions. A total of 95 brain regions in the adult male mouse brain have been identified as containing putative CRH neurons with significant expression of tdTomato marker gene. With comparison of CRH mRNA and tdTomato distribution, we found match and mismatch areas. Reporter mice were then exposed to restraint, ether, high salt, lipopolysaccharide and predator odor stress and neuronal activation was revealed by FOS immunocytochemistry. In addition to a core stress system, stressor-specific areas have been revealed to display activity marker FOS. Finally, activation of CRH neurons was detected by colocalization of FOS in tdTomato expressing cells. All stressors resulted in profound activation of CRH neurons in the hypothalamic paraventricular nucleus; however, a differential activation of pattern was observed in CRH neurons in extrahypothalamic regions. This comprehensive description of stress-related CRH neurons in the mouse brain provides a starting point for a systematic functional analysis of the brain stress system and its relation to stress-induced psychopathologies.
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Affiliation(s)
- Krisztina Horváth
- Laboratory of Molecular Neuroendocrinology, Institute of Experimental Medicine Eötvös Loránd Research Network, 1083 Budapest, Hungary
- János Szentágothai Doctoral School of Neurosciences, Semmelweis University, 1085 Budapest, Hungary
| | - Balázs Juhász
- Laboratory of Molecular Neuroendocrinology, Institute of Experimental Medicine Eötvös Loránd Research Network, 1083 Budapest, Hungary
- János Szentágothai Doctoral School of Neurosciences, Semmelweis University, 1085 Budapest, Hungary
| | - Dániel Kuti
- Laboratory of Molecular Neuroendocrinology, Institute of Experimental Medicine Eötvös Loránd Research Network, 1083 Budapest, Hungary
| | - Szilamér Ferenczi
- Laboratory of Molecular Neuroendocrinology, Institute of Experimental Medicine Eötvös Loránd Research Network, 1083 Budapest, Hungary
| | - Krisztina J Kovács
- Laboratory of Molecular Neuroendocrinology, Institute of Experimental Medicine Eötvös Loránd Research Network, 1083 Budapest, Hungary
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13
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Valencia-Florez KB, Sánchez-Castillo H, Vázquez P, Zarate P, Paz DB. Stress, a Brief Update. Int J Psychol Res (Medellin) 2023; 16:105-121. [PMID: 38106958 PMCID: PMC10723744 DOI: 10.21500/20112084.5815] [Citation(s) in RCA: 2] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/22/2022] [Revised: 09/26/2022] [Accepted: 06/06/2023] [Indexed: 12/19/2023] Open
Abstract
Stress is fundamental for health and adaptation; it is an evolutionarily conserved response that involves several systems in the organism. The study of the stress response could be traced back to the end of the nineteenth century with George Beard's or Claude Bernard's work and, from that moment on, several studies that have allowed the elucidation of its neurobiology and the consequences of suffering from it were consolidated. In this theoretical review, we discuss the most relevant researches to our knowledge on the study of stress response, from the concept of stress, its neurobiology, the hormonal response during stress, as well as its regulation, the effects of acute and chronic stress, stress from cognition, the different stress responses during life, as well as its relationship with different psychiatric disorders. Taken together, the reviewed research updates the classic perspective on stress, increasing the factors that should be considered in research to explore the effects of stress on health.
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Affiliation(s)
- Kenji Baruch Valencia-Florez
- Neuropsychopharmacology Lab. Psychobiology and Neurosciences Department. Psychology School National University of Mexico (UNAM)., MéxicoUniversidad Nacional Autónoma de MéxicoUniversity of MexicoMexico
| | - Hugo Sánchez-Castillo
- Neuropsychopharmacology Lab. Psychobiology and Neurosciences Department. Psychology School National University of Mexico (UNAM)., MéxicoUniversidad Nacional Autónoma de MéxicoUniversity of MexicoMexico
| | - Priscila Vázquez
- Neuropsychopharmacology Lab. Psychobiology and Neurosciences Department. Psychology School National University of Mexico (UNAM)., MéxicoUniversidad Nacional Autónoma de MéxicoUniversity of MexicoMexico
| | - Pavel Zarate
- Ibeoramerican Society of Applied Neurosciences (SINA) , México.Ibeoramerican Society of Applied NeurosciencesMéxico
| | - Diana Berenice Paz
- Neuropsychopharmacology Lab. Psychobiology and Neurosciences Department. Sistema de Universidad Abierta y a Distancia (SUAyD), Psychology School, National University of Mexico (UNAM) , México.Universidad Nacional Autónoma de MéxicoNational University of MexicoMexico
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14
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Kang H, Zsoldos RR, Sole-Guitart A, Narayan E, Cawdell-Smith AJ, Gaughan JB. Heat stress in horses: a literature review. INTERNATIONAL JOURNAL OF BIOMETEOROLOGY 2023; 67:957-973. [PMID: 37060454 DOI: 10.1007/s00484-023-02467-7] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Received: 02/02/2022] [Revised: 03/21/2023] [Accepted: 03/28/2023] [Indexed: 06/15/2023]
Abstract
Healthy adult horses can balance accumulation and dissipation of body heat to maintain their body temperature between 37.5 and 38.5 °C, when they are in their thermoneutral zone (5 to 25 °C). However, under some circumstances, such as following strenuous exercise under hot, or hot and humid conditions, the accumulation of body heat exceeds dissipation and horses can suffer from heat stress. Prolonged or severe heat stress can lead to anhidrosis, heat stroke, or brain damage in the horse. To ameliorate the negative effects of high heat load in the body, early detection of heat stress and immediate human intervention is required to reduce the horse's elevated body temperature in a timely manner. Body temperature measurement and deviations from the normal range are used to detect heat stress. Rectal temperature is the most commonly used method to monitor body temperature in horses, but other body temperature monitoring technologies, percutaneous thermal sensing microchips or infrared thermometry, are currently being studied for routine monitoring of the body temperature of horses as a more practical alternative. When heat stress is detected, horses can be cooled down by cool water application, air movement over the horse (e.g., fans), or a combination of these. The early detection of heat stress and the use of the most effective cooling methods is important to improve the welfare of heat stressed horses.
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Affiliation(s)
- Hyungsuk Kang
- School of Agriculture and Food Sciences, The University of Queensland, Gatton, QLD, 4343, Australia.
| | - Rebeka R Zsoldos
- School of Agriculture and Food Sciences, The University of Queensland, Gatton, QLD, 4343, Australia
| | - Albert Sole-Guitart
- School of Veterinary Science, The University of Queensland, Gatton, QLD, 4343, Australia
| | - Edward Narayan
- School of Agriculture and Food Sciences, The University of Queensland, Gatton, QLD, 4343, Australia
| | - A Judith Cawdell-Smith
- School of Agriculture and Food Sciences, The University of Queensland, Gatton, QLD, 4343, Australia
| | - John B Gaughan
- School of Agriculture and Food Sciences, The University of Queensland, Gatton, QLD, 4343, Australia
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15
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Wang Y, Zhang Q, Li S, Jin Y. The psychometric properties of the Chinese version of the stressor scale for emergency nurses. Australas Emerg Care 2023; 26:179-183. [PMID: 36328938 DOI: 10.1016/j.auec.2022.10.005] [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: 08/29/2022] [Accepted: 10/24/2022] [Indexed: 11/06/2022]
Abstract
BACKGROUND Emergency nurses are experienced specific stress factors. To evaluate stressors of emergency nurses effectively is useful to improve quality of nursing care. This study aimed to translate the stressor scale for emergency nurses into Chinese (C-SSEN) and carry out the reliability and validity test among Chinese emergency nurses. METHODS A total of 358 emergency nurses from four hospitals in Tianjin, Henan, and Shandong province of China are recruited through a convenience sampling. The C-SSEN was translated into Chinese applying a classic 'forward-backward' translation method. Reliability (internal consistency, test-retest reliability) and validity (content validity, construct validity) were assessed. RESULTS The final version of C-SSEN was rated by the expert panel, indicating good content validity (I-CVI ≥ 0.83, S-CVI = 0.96). The scale had satisfactory content validity, internal consistency (Cronbach's α coefficient = 0.958), and test-retest reliability (intra-class correlation coefficient = 0.824). CONCLUSION The C-SSEN is a useful and reliable scale to evaluate stressors among emergency nurses.
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Affiliation(s)
- Yuxin Wang
- Graduate School, Tianjin University of Traditional Chinese Medicine, Tianjin, China
| | - Qi Zhang
- School of Nursing, Peking University, Beijing, China
| | - Saiwen Li
- School of Nursing, Dalian University, Dalian, China
| | - Yi Jin
- Department of Nursing, Tianjin Huanhu Hospital, Tianjin, China.
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16
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Jagot F, Gaston-Breton R, Choi AJ, Pascal M, Bourhy L, Dorado-Doncel R, Conzelmann KK, Lledo PM, Lepousez G, Eberl G. The parabrachial nucleus elicits a vigorous corticosterone feedback response to the pro-inflammatory cytokine IL-1β. Neuron 2023:S0896-6273(23)00382-3. [PMID: 37279750 DOI: 10.1016/j.neuron.2023.05.009] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2021] [Revised: 04/13/2023] [Accepted: 05/10/2023] [Indexed: 06/08/2023]
Abstract
The central nervous system regulates systemic immune responses by integrating the physiological and behavioral constraints faced by an individual. Corticosterone (CS), the release of which is controlled in the hypothalamus by the paraventricular nucleus (PVN), is a potent negative regulator of immune responses. Using the mouse model, we report that the parabrachial nucleus (PB), an important hub linking interoceptive afferent information to autonomic and behavioral responses, also integrates the pro-inflammatory cytokine IL-1β signal to induce the CS response. A subpopulation of PB neurons, directly projecting to the PVN and receiving inputs from the vagal complex (VC), responds to IL-1β to drive the CS response. Pharmacogenetic reactivation of these IL-1β-activated PB neurons is sufficient to induce CS-mediated systemic immunosuppression. Our findings demonstrate an efficient brainstem-encoded modality for the central sensing of cytokines and the regulation of systemic immune responses.
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Affiliation(s)
- Ferdinand Jagot
- Institut Pasteur, Université de Paris Cité, Inserm U1224, Microenvironment and Immunity Unit, 75015 Paris, France; Institut Pasteur, Université de Paris Cité, CNRS UMR 3571, Perception and Memory Unit, 75015 Paris, France; PhD Program, Ecole Doctorale Bio Sorbonne Paris Cité (BioSpc), Université de Paris Cité, 75005 Paris, France.
| | - Romane Gaston-Breton
- Institut Pasteur, Université de Paris Cité, Inserm U1224, Microenvironment and Immunity Unit, 75015 Paris, France
| | - Ana Jeemin Choi
- Institut Pasteur, Université de Paris Cité, Inserm U1224, Microenvironment and Immunity Unit, 75015 Paris, France; PhD Program, Ecole Doctorale Bio Sorbonne Paris Cité (BioSpc), Université de Paris Cité, 75005 Paris, France
| | - Maud Pascal
- Institut Pasteur, Université de Paris Cité, Inserm U1224, Microenvironment and Immunity Unit, 75015 Paris, France; Institut Pasteur, Université de Paris Cité, CNRS UMR 3571, Perception and Memory Unit, 75015 Paris, France
| | - Lena Bourhy
- Institut Pasteur, Université de Paris Cité, CNRS UMR 3571, Perception and Memory Unit, 75015 Paris, France
| | - Romane Dorado-Doncel
- Institut Pasteur, Université de Paris Cité, Inserm U1224, Microenvironment and Immunity Unit, 75015 Paris, France
| | - Karl-Klaus Conzelmann
- Max von Pettenkofer Institute of Virology, Medical Faculty and Gene Center, LMU Munich, 81377 Munich, Germany
| | - Pierre-Marie Lledo
- Institut Pasteur, Université de Paris Cité, CNRS UMR 3571, Perception and Memory Unit, 75015 Paris, France
| | - Gabriel Lepousez
- Institut Pasteur, Université de Paris Cité, CNRS UMR 3571, Perception and Memory Unit, 75015 Paris, France
| | - Gérard Eberl
- Institut Pasteur, Université de Paris Cité, Inserm U1224, Microenvironment and Immunity Unit, 75015 Paris, France.
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Molina P, Andero R, Armario A. Restraint or immobilization: a comparison of methodologies for restricting free movement in rodents and their potential impact on physiology and behavior. Neurosci Biobehav Rev 2023; 151:105224. [PMID: 37156310 DOI: 10.1016/j.neubiorev.2023.105224] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/16/2023] [Revised: 05/03/2023] [Accepted: 05/05/2023] [Indexed: 05/10/2023]
Abstract
Restriction of free movement has historically been used as a model for inducing acute and chronic stress in laboratory animals. This paradigm is one of the most widely employed experimental procedures for basic research studies of stress-related disorders. It is easy to implement, and it rarely involves any physical harm to the animal. Many different restraint methods have been developed with variations in the apparatuses used and the degree of limitation of movement. Unfortunately, very few studies directly compare the differential impact of the distinct protocols. Additionally, restraint and immobilization terms are not differentiated and are sometimes used interchangeably in the literature. This review offers evidence of great physiological differences in the impact of distinct restraint procedures in rats and mice and emphasizes the need for a standardized language on this topic. Moreover, it illustrates the necessity of additional systematic studies that compare the effects of the distinct restraint methodologies, which would help to decide better which procedure should be used depending on the objectives of each particular study.
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Affiliation(s)
- Patricia Molina
- Institut de Neurociències, Universitat Autònoma de Barcelona, Spain; Animal Physiology Unit, School of Biosciences, Department of Cellular Biology, Physiology and Immunology, Universitat Autònoma de Barcelona, Spain
| | - Raül Andero
- Institut de Neurociències, Universitat Autònoma de Barcelona, Spain; Deparment of Psychobiology and Methodology of Health Sciences, Universitat Autònoma de Barcelona, Spain; CIBERSAM, Instituto de Salud Carlos III, Spain; Unitat de Neurociència Traslacional, Parc Taulí Hospital Universitari, Institut d'Investigació i Innovació Parc Taulí I3PT, Universitat Autònoma de Barcelona, Spain; ICREA, Barcelona, Spain
| | - Antonio Armario
- Institut de Neurociències, Universitat Autònoma de Barcelona, Spain; Animal Physiology Unit, School of Biosciences, Department of Cellular Biology, Physiology and Immunology, Universitat Autònoma de Barcelona, Spain; CIBERSAM, Instituto de Salud Carlos III, Spain; Unitat de Neurociència Traslacional, Parc Taulí Hospital Universitari, Institut d'Investigació i Innovació Parc Taulí I3PT, Universitat Autònoma de Barcelona, Spain.
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18
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Squair C, Proudfoot K, Montelpare W, Overall KL. Effects of Changing Veterinary Handling Techniques on Canine Behaviour and Physiology Part 1: Physiological Measurements. Animals (Basel) 2023; 13:ani13071253. [PMID: 37048509 PMCID: PMC10093362 DOI: 10.3390/ani13071253] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/19/2023] [Revised: 03/18/2023] [Accepted: 04/03/2023] [Indexed: 04/14/2023] Open
Abstract
Signs of distress in dogs are often normalized during routine veterinary care, creating an animal welfare concern. We sought to test whether targeted interventions during veterinary visits affect physiological indicators of stress in dogs. Some 28 dogs were examined within four visits across 8 weeks. All dogs received the same care during the first visit and were then randomized into control and intervention groups for visits 2-4. In the intervention group, 14 dogs underwent procedures designed to reduce stress and to enlist their collaboration during examination. The 14 dogs in the control group received routine care. At each visit, heart rate (HR), serum cortisol (CORT), neutrophil lymphocyte ratio (NLR), and creatine kinase (CK) were measured. A composite stress index based on the summed standardized scores for these markers was constructed. No differences in HR, NLR, and CK parameters between groups were found, and both groups had a decrease in CORT by visit four. However, the intervention group showed a greater overall decrease in CORT between the first and fourth visit than the control group (p < 0.04). The composite stress index differed between the first and fourth visits for the intervention group, but not for the control group (Intervention p = 0.03; Control p= 0.288). There was a tendency for the composite stress index to worsen at visit four vs. visit one for the control group. The findings suggest that dogs that participated in adaptive, collaborative exams and procedures designed to minimize fear had a greater reduction in stress over time compared to those receiving standard care.
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Affiliation(s)
- Camille Squair
- Department of Health Management, Atlantic Veterinary College, University of Prince Edward Island, Charlottetown, PE C1A 4P3, Canada
| | - Kathryn Proudfoot
- Department of Health Management, Atlantic Veterinary College, University of Prince Edward Island, Charlottetown, PE C1A 4P3, Canada
| | - William Montelpare
- Department of Applied Human Sciences, Faculty of Nursing, University of Prince Edward Island, Charlottetown, PE C1A 4P3, Canada
| | - Karen L Overall
- Department of Health Management, Atlantic Veterinary College, University of Prince Edward Island, Charlottetown, PE C1A 4P3, Canada
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Cojkic A, Morrell JM. Animal Welfare Assessment Protocols for Bulls in Artificial Insemination Centers: Requirements, Principles, and Criteria. Animals (Basel) 2023; 13:ani13050942. [PMID: 36899799 PMCID: PMC10000089 DOI: 10.3390/ani13050942] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2023] [Revised: 03/01/2023] [Accepted: 03/02/2023] [Indexed: 03/08/2023] Open
Abstract
Animal welfare is a complex subject; as such, it requires a multidimensional approach with the main aim of providing the animals with the "five freedoms". The violations of any one of these freedoms could have an influence on animal wellbeing on different levels. Over the years, many welfare quality protocols were developed in the EU thanks to the Welfare Quality® project. Unfortunately, there is a lack of such summarized information about bull welfare assessment in artificial insemination stations or about how disturbed welfare can be reflected in their productivity. Animal reproduction is the basis for the production of meat and milk; therefore, factors contributing to reduced fertility in bulls are not only indicators of animal welfare but also have implications for human health and the environment. Optimizing the reproductive efficiency of bulls at an early age can help to reduce greenhouse gas emissions. In this review, welfare quality assessment will be evaluated for these production animals using reproduction efficiency as a key area, focusing on stress as a main effect of poor animal welfare and, thereby, reduced fertility. We will address various welfare aspects and possible changes in resources or management to improve outcomes.
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20
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Frankowska K, Zarobkiewicz M, Sławiński MA, Wawryk-Gawda E, Abramiuk M, Jodłowska-Jędrych B. Changes in the Histological Structure of Adrenal Glands and Corticosterone Level after Whey Protein or Bee Pollen Supplementation in Running and Non-Running Rats. INTERNATIONAL JOURNAL OF ENVIRONMENTAL RESEARCH AND PUBLIC HEALTH 2023; 20:4105. [PMID: 36901116 PMCID: PMC10002451 DOI: 10.3390/ijerph20054105] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Subscribe] [Scholar Register] [Received: 01/19/2023] [Revised: 02/20/2023] [Accepted: 02/22/2023] [Indexed: 06/18/2023]
Abstract
Due to the many health-promoting properties of bee pollen and whey protein, both products are widely used as dietary supplements. According to these reports on their health-promoting properties, the aim of our study is to assess whether these products can influence the structure and function of the adrenal glands in rats. Thirty male Wistar rats were divided into six equal groups. Among them, there were three groups which included non-running rats and three groups which included running rats. Both of these running (n = 3) and non-running (n = 3) groups included non-supplemented (control groups), bee-pollen-supplemented groups, and whey-protein-supplemented groups. After 8 weeks, the rats were decapitated, their adrenal glands were collected, and paraffin slides were prepared. Then, staining according to the standard H&E and Masson's trichrome protocols was performed. Fecal and urine samples were collected prior to the end of the study to measure corticosterone levels. In the group of non-running rats, the consumption of bee pollen was noted to be significantly higher when compared to the group of running rats (p < 0.05). The thickness of the particular adrenal cortex layers was similar among all of the groups (p > 0.05). The statistically significant changes in the microscopic structure of the adrenal glands, especially regarding cell nuclei diameter and structure, as well as the architecture of sinusoids, were observed between the groups. Moreover, urine corticosterone concentrations were found to vary between all of the analyzed groups (p < 0.05). These results indicate that both bee pollen and whey protein have limited stress-reducing potential.
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Affiliation(s)
- Karolina Frankowska
- Chair and Department of Histology, Embryology and Cytophysiology, Student Scientific Association, Medical University of Lublin, 20-080 Lublin, Poland
- First Chair and Department of Oncological Gynaecology and Gynaecology, Student Scientific Association, Medical University of Lublin, 20-081 Lublin, Poland
| | - Michał Zarobkiewicz
- Chair and Department of Clinical Immunology, Medical University of Lublin, 20-093 Lublin, Poland
| | - Mirosław A. Sławiński
- Chair and Department of Histology, Embryology and Cytophysiology, Medical University of Lublin, 20-080 Lublin, Poland
| | - Ewelina Wawryk-Gawda
- Department of Paediatric Pulmonology and Rheumatology, Medical University of Lublin, 20-093 Lublin, Poland
| | - Monika Abramiuk
- First Chair and Department of Oncological Gynecology and Gynecology, Medical University of Lublin, 20-081 Lublin, Poland
| | - Barbara Jodłowska-Jędrych
- Chair and Department of Histology, Embryology and Cytophysiology, Medical University of Lublin, 20-080 Lublin, Poland
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Nocheva H, Krastev NS, Krastev DS, Mileva M. The Endogenous Cannabinoid and the Nitricoxidergic Systems in the Modulation of Stress Responses. Int J Mol Sci 2023; 24:ijms24032886. [PMID: 36769207 PMCID: PMC9918253 DOI: 10.3390/ijms24032886] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/30/2022] [Revised: 01/24/2023] [Accepted: 01/27/2023] [Indexed: 02/05/2023] Open
Abstract
The effects on stress-induced analgesia (SIA) from endogenous cannabinoid system (ECS) and nitric oxide (NO) interaction after 1 h of restraint stress were evaluated in male Wistar rats. The animals were subjected to 1 h of restraint and then injected with different combinations of cannabinoid receptor type 1 agonist anandamide (AEA) or antagonist AM251 along with an NO donor, NO precursor, or inhibitor of NO synthase. Nociception was evaluated using paw pressure (PP) or hot plate (HP) tests. AEA was administered immediately after the end of restraint-SIA (r-SIA). Administration of NO precursor reversed the pronociceptive effect of the CB1 agonist on r-SIA. Both the CB1 antagonist and the NOS inhibitor neutralized the pro-analgesic effect of L-arginine (L-arg). Administration of an NO donor, instead, increased r-SIA. Our experiments confirmed that the endogenous cannabinoid and the NO-ergic systems interact in the modulation of r-SIA. This interaction probably implies NO as a second messenger of the ECS.
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Affiliation(s)
- Hristina Nocheva
- Department of Physiology and Pathophysiology, Faculty of Medicine, Medical University, 1403 Sofia, Bulgaria
| | - Nikolay S. Krastev
- Department of Anatomy, Faculty of Medicine, Medical University, 1606 Sofia, Bulgaria
| | - Dimo S. Krastev
- College of Medicine “Yordanka Filaretova”, Medical University, 1606 Sofia, Bulgaria
- Department of Anatomy and Physiology, South-West University “Neofit Rilski”, 2700 Blagoevgrad, Bulgaria
| | - Milka Mileva
- The Stephan Angeloff Institute of Microbiology, Bulgarian Academy of Sciences, 1113 Sofia, Bulgaria
- Correspondence:
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Moses TE, Gray E, Mischel N, Greenwald MK. Effects of neuromodulation on cognitive and emotional responses to psychosocial stressors in healthy humans. Neurobiol Stress 2023; 22:100515. [PMID: 36691646 PMCID: PMC9860364 DOI: 10.1016/j.ynstr.2023.100515] [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: 08/10/2022] [Revised: 12/19/2022] [Accepted: 01/09/2023] [Indexed: 01/12/2023] Open
Abstract
Physiological and psychological stressors can exert wide-ranging effects on the human brain and behavior. Research has improved understanding of how the sympatho-adreno-medullary (SAM) and hypothalamic-pituitary-adrenocortical (HPA) axes respond to stressors and the differential responses that occur depending on stressor type. Although the physiological function of SAM and HPA responses is to promote survival and safety, exaggerated psychobiological reactivity can occur in psychiatric disorders. Exaggerated reactivity may occur more for certain types of stressors, specifically, psychosocial stressors. Understanding stressor effects and how the body regulates these responses can provide insight into ways that psychobiological reactivity can be modulated. Non-invasive neuromodulation is one way that responding to stressors may be altered; research into these interventions may provide further insights into the brain circuits that modulate stress reactivity. This review focuses on the effects of acute psychosocial stressors and how neuromodulation might be effective in altering stress reactivity. Although considerable research into stress interventions focuses on treating pathology, it is imperative to first understand these mechanisms in non-clinical populations; therefore, this review will emphasize populations with no known pathology and consider how these results may translate to those with psychiatric pathologies.
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Affiliation(s)
| | | | | | - Mark K. Greenwald
- Corresponding author. Department of Psychiatry and Behavioral Neurosciences, Tolan Park Medical Building, 3901 Chrysler Service Drive, Suite 2A, Detroit, MI, 48201, USA.
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23
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Sex-Dimorphic Glucocorticoid Receptor Regulation of Hypothalamic Primary Astrocyte Glycogen Metabolism: Interaction with Norepinephrine. NEUROGLIA (BASEL, SWITZERLAND) 2022; 3:144-157. [PMID: 36685006 PMCID: PMC9850496 DOI: 10.3390/neuroglia3040010] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Subscribe] [Scholar Register] [Indexed: 11/18/2022]
Abstract
Astrocyte glycogen is a critical metabolic variable that impacts hypothalamic control of glucostasis. Glucocorticoid hormones regulate peripheral glycogen, but their effects on hypothalamic glycogen are not known. A hypothalamic astrocyte primary culture model was used to investigate the premise that glucocorticoids impose sex-dimorphic independent and interactive control of glycogen metabolic enzyme protein expression and glycogen accumulation. The glucocorticoid receptor (GR) agonist dexamethasone (DEX) down-regulated glycogen synthase (GS), glycogen phosphorylase (GP)-brain type (GPbb), and GP-muscle type (GPmm) proteins in glucose-supplied male astrocytes, but enhanced these profiles in female. The catecholamine neurotransmitter norepinephrine (NE) did not alter these proteins, but amplified DEX inhibition of GS and GPbb in male or abolished GR stimulation of GPmm in female. In both sexes, DEX and NE individually increased glycogen content, but DEX attenuated the magnitude of noradrenergic stimulation. Glucoprivation suppressed GS, GPbb, and GPmm in male, but not female astrocytes, and elevated or diminished glycogen in these sexes, respectively. Glucose-deprived astrocytes exhibit GR-dependent induced glycogen accumulation in both sexes, and corresponding loss (male) or attenuation (female) of noradrenergic-dependent glycogen build-up. Current evidence for GR augmentation of hypothalamic astrocyte glycogen content in each sex, yet divergent effects on glycogen enzyme proteins infers that glucocorticoids may elicit opposite adjustments in glycogen turnover in each sex. Results document GR modulation of NE stimulation of glycogen accumulation in the presence (male and female) or absence (female) of glucose. Outcomes provide novel proof that astrocyte energy status influences the magnitude of GR and NE signal effects on glycogen mass.
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Alhamyani A, Napit PR, Bheemanapally K, Sylvester PW, Briski KP. Singular versus combinatory glucose-sensitive signal control of metabolic sensor protein profiles in hypothalamic astrocyte cultures from each sex. Transl Neurosci 2022; 13:408-420. [DOI: 10.1515/tnsci-2022-0259] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2022] [Revised: 10/08/2022] [Accepted: 10/21/2022] [Indexed: 12/05/2022] Open
Abstract
Abstract
Brain metabolic-sensory targets for modulatory glucose-sensitive endocrine and neurochemical signals remain unidentified. A hypothalamic astrocyte primary culture model was here used to investigate whether glucocorticoid receptor (GR) and noradrenergic signals regulate astrocyte glucose (glucose transporter-2 [GLUT2], glucokinase) and/or energy (5′-AMP-activated protein kinase [AMPK]) sensor reactivity to glucoprivation by sex. Glucose-supplied astrocytes of each sex showed increased GLUT2 expression after incubation with the GR agonist dexamethasone (DEX) or norepinephrine (NE); DEX plus NE (DEX/NE) augmented GLUT2 in the female, but not in male. Glucoprivation did not alter GLUT2 expression, but eliminated NE regulation of this protein in both sexes. Male and female astrocyte glucokinase profiles were refractory to all drug treatments, but were down-regulated by glucoprivation. Glucoprivation altered AMPK expression in male only, and caused divergent sex-specific changes in activated, i.e., phosphoAMPK (pAMPK) levels. DEX or DEX/NE inhibited (male) or stimulated (female) AMPK and pAMPK proteins in both glucose-supplied and -deprived astrocytes. In male, NE coincidently up-regulated AMPK and inhibited pAMPK profiles in glucose-supplied astrocytes; these effects were abolished by glucoprivation. In female, AMPK profiles were unaffected by NE irrespective of glucose status, whereas pAMPK expression was up-regulated by NE only during glucoprivation. Present outcomes document, for each sex, effects of glucose status on hypothalamic astrocyte glucokinase, AMPK, and pAMPK protein expression and on noradrenergic control of these profiles. Data also show that DEX and NE regulation of GLUT2 is sex-monomorphic, but both stimuli impose divergent sex-specific effects on AMPK and pAMPK. Further effort is warranted to characterize mechanisms responsible for sex-dimorphic GR and noradrenergic governance of hypothalamic astrocyte energy sensory function.
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Affiliation(s)
- Abdulrahman Alhamyani
- School of Basic Pharmaceutical and Toxicological Sciences, College of Pharmacy, University of Louisiana Monroe , Rm 356 Bienville Building, 1800 Bienville Drive , Monroe, LA 71201 , United States ; Pharmaceuticals Chemistry Department, Faculty of Clinical Pharmacy, Al Baha University , Al Baha city, 65779, Saudi Arabia
| | - Prabhat R. Napit
- School of Basic Pharmaceutical and Toxicological Sciences, College of Pharmacy, University of Louisiana Monroe , Rm 356 Bienville Building, 1800 Bienville Drive , Monroe, LA 71201 , United States ; Pharmaceuticals Chemistry Department, Faculty of Clinical Pharmacy, Al Baha University , Al Baha city, 65779, Saudi Arabia
| | - Khaggeswar Bheemanapally
- School of Basic Pharmaceutical and Toxicological Sciences, College of Pharmacy, University of Louisiana Monroe , Rm 356 Bienville Building, 1800 Bienville Drive , Monroe, LA 71201 , United States ; Pharmaceuticals Chemistry Department, Faculty of Clinical Pharmacy, Al Baha University , Al Baha city, 65779, Saudi Arabia
| | - Paul W. Sylvester
- School of Basic Pharmaceutical and Toxicological Sciences, College of Pharmacy, University of Louisiana Monroe , Rm 356 Bienville Building, 1800 Bienville Drive , Monroe, LA 71201 , United States ; Pharmaceuticals Chemistry Department, Faculty of Clinical Pharmacy, Al Baha University , Al Baha city, 65779, Saudi Arabia
| | - Karen P. Briski
- School of Basic Pharmaceutical and Toxicological Sciences, College of Pharmacy, University of Louisiana Monroe , Rm 356 Bienville Building, 1800 Bienville Drive , Monroe, LA 71201 , United States ; Pharmaceuticals Chemistry Department, Faculty of Clinical Pharmacy, Al Baha University , Al Baha city, 65779, Saudi Arabia
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Markov DD, Novosadova EV. Chronic Unpredictable Mild Stress Model of Depression: Possible Sources of Poor Reproducibility and Latent Variables. BIOLOGY 2022; 11:1621. [PMID: 36358321 PMCID: PMC9687170 DOI: 10.3390/biology11111621] [Citation(s) in RCA: 16] [Impact Index Per Article: 8.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Track Full Text] [Subscribe] [Scholar Register] [Received: 10/03/2022] [Revised: 10/29/2022] [Accepted: 11/04/2022] [Indexed: 08/10/2023]
Abstract
Major depressive disorder (MDD) is one of the most common mood disorders worldwide. A lack of understanding of the exact neurobiological mechanisms of depression complicates the search for new effective drugs. Animal models are an important tool in the search for new approaches to the treatment of this disorder. All animal models of depression have certain advantages and disadvantages. We often hear that the main drawback of the chronic unpredictable mild stress (CUMS) model of depression is its poor reproducibility, but rarely does anyone try to find the real causes and sources of such poor reproducibility. Analyzing the articles available in the PubMed database, we tried to identify the factors that may be the sources of the poor reproducibility of CUMS. Among such factors, there may be chronic sleep deprivation, painful stressors, social stress, the difference in sex and age of animals, different stress susceptibility of different animal strains, handling quality, habituation to stressful factors, various combinations of physical and psychological stressors in the CUMS protocol, the influence of olfactory and auditory stimuli on animals, as well as the possible influence of various other factors that are rarely taken into account by researchers. We assume that careful inspection of these factors will increase the reproducibility of the CUMS model between laboratories and allow to make the interpretation of the obtained results and their comparison between laboratories to be more adequate.
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Himcheva I, Stavreva GT, Naydenova E, Bocheva A. Involvement of the opioidergic and nociceptinergic systems in the analgesic effects of novel nociceptin analogues after acute and chronic immobilization stress. PHARMACIA 2022. [DOI: 10.3897/pharmacia.69.e89379] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/05/2022] Open
Abstract
Stress is known to exert an influence on neuroendocrine, autonomic, hormonal functioning. Various stress models have been reported to induce analgesia. This is a phenomenon, referred to as stress-induced analgesia (SIA). Nociceptin/Orphanin FQ(N/OFQ) is a heptadecapeptide that has been found to play a direct role on pain perception.
This study aimed to investigate the effects of novel nociceptin analogues on nociception after acute and chronic immobilization stress (CIS) and the involvement of the opioid and nociceptinergic systems in analgesic effects. Analgesic effects were examined by paw-pressure (PP) and hot-plate (HP) tests.
Our data showed that acute immobilization stress induced hypoalgesia. The analgesic effect was more pronounced in pain caused by a mechanical stimulus than by a thermal one. CIS attenuated the hyperalgesic effect of naloxone and JTC-801 for mechanical and thermal stimulation. The effects of the opioid system are more pronounced in acute immobilization stress, while the nociceptin mechanisms predominate after chronic stress.
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Excessive alcohol consumption after exposure to two types of chronic social stress: intermittent episodes vs. continuous exposure in C57BL/6J mice with a history of drinking. Psychopharmacology (Berl) 2022; 239:3287-3296. [PMID: 35974246 DOI: 10.1007/s00213-022-06211-8] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 07/21/2021] [Accepted: 08/01/2022] [Indexed: 10/15/2022]
Abstract
RATIONALE The attraction to alcohol can be greatly increased when it is consumed in a social context. While pro-social interactions can potentiate voluntary alcohol drinking under some conditions, aversive social experience (i.e., social stress) can similarly intensify alcohol consumption. OBJECTIVE We sought to determine how exposure to different types of chronic social stress (i.e., intermittent episodes of social defeat or continuous social stress) influences alcohol consumption and the reinforcing effects of alcohol in mice with a history of drinking. METHODS Separate cohorts of male C57BL/6J mice were exposed to either 10 days of continuous or intermittent social defeat stress. In experiment 1, mice were assigned to 20% w/v alcohol consumption in a two-bottle choice protocol both prior to and after exposure to social defeat stress. In a second experiment, mice engaged in an operant response sequence to gain access to alcohol wherein completion of a fixed interval (FI; 5 min) schedule was reinforced with continuous access to alcohol (fixed ratio; FR1) for up to 1.8 g/kg. Alcohol-reinforced responding and subsequent alcohol consumption were assessed daily for 4 weeks prior to the 10-day social stress exposure and for 6-week post-stress. Machine learning was implemented to standardize the analysis of defeat behaviors exhibited by the intruder mouse during confrontation with an attacking resident. RESULTS In mice with a prior history of alcohol drinking, intermittent episodes of social defeat stress produced a significant increase in 20% EtOH consumption in preference over concurrently available water. This increased intake persisted for at least 6 weeks after the final social stress experience. Intermittently stressed mice also accelerated their anticipatory responding during the fixed interval component of the operant response chain that was reinforced by alcohol. Neither unstressed controls nor mice exposed to continuous social stress exhibited significant increases in alcohol consumption and alcohol reinforcement. DISCUSSION Episodic social defeat stress promotes the seeking and consumption of alcohol, extending earlier work to alcohol-experienced mice. We hypothesize that intermittent access to alcohol and intermittent episodes of social stress are additive and share common sensitizing neural mechanisms that engender excessive alcohol consumption.
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Kuti D, Winkler Z, Horváth K, Juhász B, Szilvásy-Szabó A, Fekete C, Ferenczi S, Kovács KJ. The metabolic stress response: Adaptation to acute-, repeated- and chronic challenges in mice. iScience 2022; 25:104693. [PMID: 35880047 PMCID: PMC9307515 DOI: 10.1016/j.isci.2022.104693] [Citation(s) in RCA: 9] [Impact Index Per Article: 4.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Revised: 05/24/2022] [Accepted: 06/25/2022] [Indexed: 01/08/2023] Open
Abstract
There is a strong relationship between stress and metabolism. Because acute traumatic- and chronic stress events are often accompanied with metabolic pathophysiology, it is important to understand the details of the metabolic stress response. In this study we directly compared metabolic effects of acute stress with chronic repeated- and chronic unpredictable stress in mouse models. All types of adversities increased energy expenditure, chronic stress exposure decreased body weight gain, locomotor activity and differentially affected fuel utilization. During chronic exposure to variable stressors, carbohydrates were the predominant fuels, whereas fatty acids were catabolized in acutely and repeatedly restrained animals. Chronic exposure to variable stressors in unpredictable manner provoked anxiety. Our data highlight differences in metabolic responses to acute- repeated- and chronic stressors, which might affect coping behavior and underlie stress-induced metabolic and psychopathologies. All forms of stress exposure increase energy expenditure and resting metabolic rate Increased energy expenditure is fueled in challenge-specific manner Acute restraint increases, chronic stress decreases locomotor activity Chronic variable stress, but not repeated restraint provokes anxiety/depression
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Affiliation(s)
- Dániel Kuti
- Laboratory of Molecular Neuroendocrinology, Institute of Experimental Medicine, Eötvös Loránd Research Network, Szigony u 43, 1083 Budapest, Hungary
| | - Zsuzsanna Winkler
- Laboratory of Molecular Neuroendocrinology, Institute of Experimental Medicine, Eötvös Loránd Research Network, Szigony u 43, 1083 Budapest, Hungary
| | - Krisztina Horváth
- Laboratory of Molecular Neuroendocrinology, Institute of Experimental Medicine, Eötvös Loránd Research Network, Szigony u 43, 1083 Budapest, Hungary.,János Szentágothai Doctoral School of Neurosciences, Semmelweis University, 1083 Budapest, Hungary
| | - Balázs Juhász
- Laboratory of Molecular Neuroendocrinology, Institute of Experimental Medicine, Eötvös Loránd Research Network, Szigony u 43, 1083 Budapest, Hungary.,János Szentágothai Doctoral School of Neurosciences, Semmelweis University, 1083 Budapest, Hungary
| | - Anett Szilvásy-Szabó
- Laboratory of Integrative Neuroendocrinology, Institute of Experimental Medicine, Eötvös Loránd Research Network, 1083 Budapest, Hungary
| | - Csaba Fekete
- Laboratory of Integrative Neuroendocrinology, Institute of Experimental Medicine, Eötvös Loránd Research Network, 1083 Budapest, Hungary
| | - Szilamér Ferenczi
- Laboratory of Molecular Neuroendocrinology, Institute of Experimental Medicine, Eötvös Loránd Research Network, Szigony u 43, 1083 Budapest, Hungary
| | - Krisztina J Kovács
- Laboratory of Molecular Neuroendocrinology, Institute of Experimental Medicine, Eötvös Loránd Research Network, Szigony u 43, 1083 Budapest, Hungary
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Haas A, Borsook D, Adler G, Freeman R. Stress, hypoglycemia, and the autonomic nervous system. Auton Neurosci 2022; 240:102983. [PMID: 35417827 DOI: 10.1016/j.autneu.2022.102983] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/21/2022] [Revised: 03/30/2022] [Accepted: 04/01/2022] [Indexed: 11/29/2022]
Abstract
Stress can be classified as either psychosocial or physiologic. Physiologic stress refers to stresses due to acute illness, trauma, pain, hypoglycemia, and sleep deprivation-much less is known regarding its health consequences. This review focuses on hypoglycemia as a model to further investigate physiological stress. Experimental mild to moderate hypoglycemia is a paradigmatic physiological stress that evokes autonomic, neuroendocrine, and immune responses. Hypoglycemic stress is an ideal model to examine the interactions and consequences of physiological stress on the autonomic nervous system. Acute hypoglycemia has been demonstrated to increase inflammatory markers, prolong QTc, and impair cardiac-vagal baroreflex sensitivity. Some of these consequences may not reverse completely when euglycemia is restored. For example, there is attenuation of the cardiac-vagal baroreflex, attenuation of the vascular sympathetic baroreflex (muscle sympathetic nerve activity response to transient hypotension), and attenuation of the catecholamine response to lower body negative pressure that is present the next day after hypoglycemia has resolved.
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Affiliation(s)
- Andrea Haas
- Division of Endocrinology, Diabetes and Hypertension, Brigham and Women's Hospital, Boston, MA, USA
| | - David Borsook
- Department of Anesthesiology, Perioperative and Pain Medicine, Boston Children's Hospital, Boston, MA, USA
| | - Gail Adler
- Division of Endocrinology, Diabetes and Hypertension, Brigham and Women's Hospital, Boston, MA, USA
| | - Roy Freeman
- Department of Neurology, Beth Israel Deaconess Medical Center, Harvard Medical School, Boston, MA, USA.
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Rashid A, Roatta S. Differential control of blood flow in masseter and biceps brachii muscles during stress. Arch Oral Biol 2022; 141:105490. [PMID: 35759826 DOI: 10.1016/j.archoralbio.2022.105490] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 02/18/2022] [Revised: 06/03/2022] [Accepted: 06/16/2022] [Indexed: 11/02/2022]
Abstract
OBJECTIVE The present study aimed to compare sympathetic hemodynamic effects in masticatory and limb muscles in response to different stressors. DESIGN Twelve healthy participants were subjected to a randomized series of stressors, including cold pressor test (CPT), mental arithmetic test, apnea, isometric handgrip (IHG) and post-handgrip muscle ischemia (PHGMI), while in the supine position. Spatially-resolved near-infrared spectroscopy was used to measure relative changes in blood volume and oxygenation (TOI) of the resting masseter and biceps muscles. Cardiac output, heart rate, and arterial blood pressure (ABP) were also monitored. RESULTS Except apnea, all tests increased ABP. Different response patterns were observed in the 2 muscles: TOI significantly increased during contralateral IHG (1.24 ± 1.17%) but markedly decreased during CPT (-4.84 ± 4.09%) and PHGMI (-6.65 ± 5.31%) in the biceps muscle, while exhibiting consistent increases in the masseter (1.88 ± 1.85%; 1.60 ± 1.75%; 1.06 ± 3.29%, respectively) (p < 0.05). CONCLUSIONS The results allow us to infer differential control of blood flow in head and limb muscles. In general, the masseter appears more prone to dilatation than the biceps, exhibiting opposite changes in response to painful stimuli (CPT and PHGMI). Several mechanisms may mediate this effect, including reduced sympathetic outflow to the extracranial vasculature of the head, generally exposed to lower hydrostatic loads than the rest of the body.
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Affiliation(s)
- Anas Rashid
- Lab of Integrative Physiology, Department of Neuroscience "Rita Levi Montalcini", University of Torino, Torino, Italy
| | - Silvestro Roatta
- Lab of Integrative Physiology, Department of Neuroscience "Rita Levi Montalcini", University of Torino, Torino, Italy.
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Lee EJ, Saraiva LR, Hanchate NK, Ye X, Asher G, Ho J, Buck LB. Odor blocking of stress hormone responses. Sci Rep 2022; 12:8773. [PMID: 35610316 PMCID: PMC9130126 DOI: 10.1038/s41598-022-12663-x] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/03/2022] [Accepted: 04/26/2022] [Indexed: 11/10/2022] Open
Abstract
Scents have been employed for millennia to allay stress, but whether or how they might do so is largely unknown. Fear and stress induce increases in blood stress hormones controlled by hypothalamic corticotropin releasing hormone neurons (CRHNs). Here, we report that two common odorants block mouse stress hormone responses to three potent stressors: physical restraint, predator odor, and male-male social confrontation. One odorant inhibits restraint and predator odor activation of excitatory neurons upstream of CRHNs in the bed nucleus of the stria terminalis (BNSTa). In addition, both activate inhibitory neurons upstream of CRHNs in the hypothalamic ventromedial nucleus (VMH) and silencing of VMH inhibitory neurons hinders odor blocking of stress. Together, these findings indicate that odor blocking can occur via two mechanisms: (1) Inhibition of excitatory neurons that transmit stress signals to CRHNs and (2) activation of inhibitory neurons that act directly or indirectly to inhibit stressor activation of CRHNs.
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Affiliation(s)
- Eun Jeong Lee
- Fred Hutchinson Cancer Research Center, 1100 Fairview Avenue North, A3-020, Seattle, WA, 98109, USA
- Ajou University School of Medicine, Suwon, 16499, South Korea
| | - Luis R Saraiva
- Fred Hutchinson Cancer Research Center, 1100 Fairview Avenue North, A3-020, Seattle, WA, 98109, USA
- Sidra Medicine, Research Branch, Out Patient Clinic, Doha, Qatar
| | - Naresh K Hanchate
- Fred Hutchinson Cancer Research Center, 1100 Fairview Avenue North, A3-020, Seattle, WA, 98109, USA
- University College London, London, UK
| | - Xiaolan Ye
- Fred Hutchinson Cancer Research Center, 1100 Fairview Avenue North, A3-020, Seattle, WA, 98109, USA
| | - Gregory Asher
- Fred Hutchinson Cancer Research Center, 1100 Fairview Avenue North, A3-020, Seattle, WA, 98109, USA
| | - Jonathan Ho
- Fred Hutchinson Cancer Research Center, 1100 Fairview Avenue North, A3-020, Seattle, WA, 98109, USA
- School of Medicine, University of Pittsburgh, S530 Alan Magee Scaife Hall, 3550 Terrace Street, Pittsburgh, PA, 15261, USA
| | - Linda B Buck
- Fred Hutchinson Cancer Research Center, 1100 Fairview Avenue North, A3-020, Seattle, WA, 98109, USA.
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Early Life Stress Alters Expression of Glucocorticoid Stress Response Genes and Trophic Factor Transcripts in the Rodent Basal Ganglia. Int J Mol Sci 2022; 23:ijms23105333. [PMID: 35628144 PMCID: PMC9141219 DOI: 10.3390/ijms23105333] [Citation(s) in RCA: 4] [Impact Index Per Article: 2.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/22/2022] [Revised: 05/03/2022] [Accepted: 05/07/2022] [Indexed: 01/06/2023] Open
Abstract
Early life stress shapes the developing brain and increases risk for psychotic disorders. Yet, it is not fully understood how early life stress impacts brain regions in dopaminergic pathways whose dysfunction can contribute to psychosis. Therefore, we investigated gene expression following early life stress in adult brain regions containing dopamine neuron cell bodies (substantia nigra, ventral tegmental area (VTA)) and terminals (dorsal/ventral striatum). Sprague-Dawley rats (14F, 10M) were separated from their mothers from postnatal days (PND) 2-14 for 3 h/day to induce stress, while control rats (12F, 10M) were separated for 15 min/day over the same period. In adulthood (PND98), brain regions were dissected, RNA was isolated and five glucocorticoid signalling-related and six brain-derived neurotrophic factor (Bdnf) mRNAs were assayed by qPCR in four brain regions. In the VTA, levels of glucocorticoid signalling-related transcripts differed in maternally separated rodents compared to controls, with the Fkbp5 transcript significantly lower and Ptges3 transcript significantly higher in stressed offspring. In the VTA and substantia nigra, maternally separated rodents had significantly higher Bdnf IIA and III mRNA levels than controls. By contrast, in the ventral striatum, maternally separated rodents had significantly lower expression of Bdnf I, IIA, IIC, IV and VI transcripts. Sex differences in Nr3c1, Bag1 and Fkbp5 expression in the VTA and substantia nigra were also detected. Our results suggest that early life stress has long-lasting impacts on brain regions involved in dopamine neurotransmission, changing the trophic environment and potentially altering responsiveness to subsequent stressful events in a sex-specific pattern.
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Sarika K, Balakrishnan V, Kumar H, Sundaram K. Psycho-physio-biochemical modulations brought by Integrated Amrita Meditation (IAM®) relieved stress and improved glycemic control in type 2 diabetic subjects. J Tradit Complement Med 2022; 12:235-242. [PMID: 35493306 PMCID: PMC9039117 DOI: 10.1016/j.jtcme.2021.08.005] [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: 03/23/2021] [Revised: 08/07/2021] [Accepted: 08/07/2021] [Indexed: 11/05/2022] Open
Abstract
Background and objectives In type 2 diabetic subjects, psychological stress worsens glycemic regulation. This study put forward the various psychophysiological and biochemical benefits of the Integrated Amrita Meditation (IAM®) technique in type 2 diabetic subjects in achieving a better quality of life. Methods This was a clinical trial conducted in the Endocrinology department of Amrita Institute of Medical Sciences. 85 type 2 diabetic subjects between the age group of 30-65 years were recruited for the study. They were randomly allocated to IAM (n = 43) and the control group (n = 42). All the physiological, biochemical, and psychological variables were assessed at baseline, 3 months, and 6 months. Results Within the experimental group there was statistically significant reduction in heart rate, respiratory rate, blood pressure, fasting blood glucose, HbA1c, insulin and insulin resistance (p < 0.05). The average percentage changes of these variables between the groups were also significant. HDL showed an increase within the IAM®group (p < 0.001) while there was an increase in LDL and total cholesterol in the control group. Between the groups, the mean percentage changes in stress hormones cortisol and adrenaline were also significant. IgA (p = 0.002) and GABA (p = 0.007) significantly increased in the experimental group. Psychological stress assessed by perceived stress scale also showed a significant drop after the intervention in the test group and the change in perceived stress was again significant between the 2 groups comparison. Conclusion Along with the standard treatment regimens, diabetic patients can incorporate mind-body relaxation techniques as an effective adjunctive therapy.
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Affiliation(s)
- K.S. Sarika
- Department of Physiology, Amrita Institute of Medical Sciences and Research Centre, Amrita VishwaVidyapeetham, Kochi, India
| | - Vandana Balakrishnan
- Department of Physiology, Amrita Institute of Medical Sciences and Research Centre, Amrita VishwaVidyapeetham, Kochi, India
| | - Harish Kumar
- Department of Endocrinology, Amrita Institute of Medical Sciences and Research Centre, Amrita VishwaVidyapeetham, Kochi, India
| | - K.R. Sundaram
- Department of Biostatistics, Amrita Institute of Medical Sciences and Research Centre, Amrita VishwaVidyapeetham, Kochi, India
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Xue B, Xue J, Yu Y, Wei SG, Beltz TG, Felder RB, Johnson AK. Predator Scent-Induced Sensitization of Hypertension and Anxiety-like Behaviors. Cell Mol Neurobiol 2022; 42:1141-1152. [PMID: 33201417 PMCID: PMC8126575 DOI: 10.1007/s10571-020-01005-y] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/13/2020] [Accepted: 11/11/2020] [Indexed: 12/15/2022]
Abstract
Post-traumatic stress disorder (PTSD), an anxiety-related syndrome, is associated with increased risk for cardiovascular diseases. The present study investigated whether predator scent (PS) stress, a model of PTSD, induces sensitization of hypertension and anxiety-like behaviors and underlying mechanisms related to renin-angiotensin systems (RAS) and inflammation. Coyote urine, as a PS stressor, was used to model PTSD. After PS exposures, separate cohorts of rats were studied for hypertensive response sensitization (HTRS), anxiety-like behaviors, and changes in plasma levels and mRNA expression of several components of the RAS and proinflammatory cytokines (PICs) in the lamina terminalis (LT), paraventricular nucleus (PVN), and amygdala (AMY). Rats exposed to PS as compared to control animals exhibited (1) a significantly greater hypertensive response (i.e., HTRS) when challenged with a slow-pressor dose of angiotensin (ANG) II, (2) significant decrease in locomotor activity and increase in time spent in the closed arms of a plus maze as well as general immobility (i.e., behavioral signs of increased anxiety), (3) upregulated plasma levels of ANG II and interleukin-6, and (4) increased expression of message for components of the RAS and PICs in key brain nuclei. All the PS-induced adverse effects were blocked by pretreatment with either an angiotensin-converting enzyme antagonist or a tumor necrosis factor-α inhibitor. The results suggest that PS, used as an experimental model of PTSD, sensitizes ANG II-induced hypertension and produces behavioral signs of anxiety, probably through upregulation of RAS components and inflammatory markers in plasma and brain areas associated with anxiety and blood pressure control.
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Affiliation(s)
- Baojian Xue
- Department of Psychological and Brain Sciences, University of Iowa, PBSB, 340 Iowa Ave, Iowa City, IA, 52242, USA.
| | - Jiarui Xue
- Department of Psychological and Brain Sciences, University of Iowa, PBSB, 340 Iowa Ave, Iowa City, IA, 52242, USA
| | - Yang Yu
- Internal Medicine, University of Iowa, Iowa City, IA, 52242, USA
| | - Shun-Guang Wei
- Internal Medicine, University of Iowa, Iowa City, IA, 52242, USA
- The Franҫois M. Abboud Cardiovascular Research Center University of Iowa, Iowa City, IA, 52242, USA
| | - Terry G Beltz
- Department of Psychological and Brain Sciences, University of Iowa, PBSB, 340 Iowa Ave, Iowa City, IA, 52242, USA
| | - Robert B Felder
- Internal Medicine, University of Iowa, Iowa City, IA, 52242, USA
- The Franҫois M. Abboud Cardiovascular Research Center University of Iowa, Iowa City, IA, 52242, USA
| | - Alan Kim Johnson
- Department of Psychological and Brain Sciences, University of Iowa, PBSB, 340 Iowa Ave, Iowa City, IA, 52242, USA
- Health and Human Physiology, University of Iowa, Iowa City, IA, 52242, USA
- Neuroscience and Pharmacology, University of Iowa, Iowa City, IA, 52242, USA
- The Franҫois M. Abboud Cardiovascular Research Center University of Iowa, Iowa City, IA, 52242, USA
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Olfactory Stimulation with Volatile Aroma Compounds of Basil ( Ocimum basilicum L.) Essential Oil and Linalool Ameliorates White Fat Accumulation and Dyslipidemia in Chronically Stressed Rats. Nutrients 2022; 14:nu14091822. [PMID: 35565791 PMCID: PMC9105046 DOI: 10.3390/nu14091822] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/08/2022] [Revised: 04/25/2022] [Accepted: 04/26/2022] [Indexed: 02/05/2023] Open
Abstract
We explored the physiological effects of inhaling basil essential oil (BEO) and/or linalool and identified odor-active aroma compounds in BEO using gas chromatography/mass spectrometry (GC-MS) and GC-olfactometry (GC-O). Linalool was identified as the major volatile compound in BEO. Three groups of rats were administered BEO and linalool via inhalation, while rats in the control group were not. Inhalation of BEO for 20 min only reduced the total weight gain (190.67 ± 2.52 g) and increased the forced swimming time (47.33 ± 14.84 s) compared with the control group (219.67 ± 2.08 g, 8.33 ± 5.13 s). Inhalation of BEO for 5 min (392 ± 21 beats/min) only reduced the pulse compared with the control group (420 ± 19 beats/min). Inhalation of linalool only reduced the weight of white adipose tissue (5.75 ± 0.61 g). The levels of stress-related hormones were not significantly different among the groups. The total cholesterol and triglyceride levels decreased after inhalation of BEO for 20 min (by more than -10% and -15%, respectively). Low-density lipoprotein cholesterol levels were lowered (by more than -10%) by the inhalation of BEO and linalool, regardless of the inhalation time. In particular, BEO inhalation for 20 min was associated with the lowest level of low-density lipoprotein cholesterol (53.94 ± 2.72 mg/dL). High-density lipoprotein cholesterol levels increased after inhalation of BEO (by more than +15%). The atherogenic index and cardiac risk factors were suppressed by BEO inhalation. Animals exposed to BEO and linalool had no significant differences in hepatotoxicity. These data suggest that the inhalation of BEO and linalool may ameliorate cardiovascular and lipid dysfunctions. These effects should be explored further for clinical applications.
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Yoo SA, Kim CY, Kim HD, Kim SW. Effects of progressive muscle relaxation therapy with home exercise on pain, fatigue, and stress in subjects with fibromyalgia syndrome: A pilot randomized controlled trial. J Back Musculoskelet Rehabil 2022; 35:289-299. [PMID: 34151818 DOI: 10.3233/bmr-191703] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/04/2023]
Abstract
BACKGROUND Fibromyalgia is accompanied by symptoms of fatigue, depression, sleep disorders, and physical and mental stress [1]. It is a difficult-to-treat disorder because its exact causes are unknown. OBJECTIVE This study aimed to examine the effect of progressive muscle relaxation therapy (PMRT) on pain, fatigue, and stress in patients with fibromyalgia syndrome. METHODS Thirty-seven patients with fibromyalgia syndrome (age: 20-65 years) were randomly allocated to the PMRT group (n1= 18, 2 men and 16 women) or non-PMRT group (n2= 19, 2 men and 17 women). The PMRT group received PMRT twice a week for 8 weeks and the non-PMRT group received conventional physical therapies such as electro-stimulation and heat therapies during this period. The outcome was evaluated before and after 8 week sofintervention using the Visual Analogue Scale, Multidimensional Assessment of Fatigue, Perceived Stress Scale, and measurement of the blood pressure and pulse rate. RESULTS Pain and fatigue significantly decreased in the PMRT group compared with the non-PMRT group (both P< 0.001). In addition, perceived stress (P< 0.001), systolic blood pressure (P< 0.001), diastolic blood pressure (P< 0.05), and pulse rate (P< 0.001) significantly decreased in the PMRT group compared with the non-PMRT group. CONCLUSIONS The findings indicate that progressive muscle relaxation therapy is a viable rehabilitative therapy for pain, fatigue, and stress symptoms in patients with fibromyalgia syndrome.
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Affiliation(s)
- Seoung-A Yoo
- Department of Health Science, The Graduate School, Korea University, Seoul, Korea.,Department of Health Science, The Graduate School, Korea University, Seoul, Korea
| | - Chang-Yong Kim
- Department of Pharmaceutical and Bio-Pharmaceutical Industry, Pharma and Bio Pharma Industry Team, Korea Health Industry Development Institute, Cheongju-si, Korea.,Department of Health Science, The Graduate School, Korea University, Seoul, Korea
| | - Hyeong-Dong Kim
- Department of Physical Therapy, School of Health and Environmental Science, College of Health Science, Korea University, Seoul, Korea
| | - Suhng-Wook Kim
- Department of Integrated Biomedical and Life Sciences, College of Health Science, Korea University, Seoul, Korea
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Reid MB. Redox Implications of Extreme Task Performance: The Case in Driver Athletes. Cells 2022; 11:cells11050899. [PMID: 35269521 PMCID: PMC8909750 DOI: 10.3390/cells11050899] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/27/2022] [Revised: 02/26/2022] [Accepted: 03/03/2022] [Indexed: 02/04/2023] Open
Abstract
Redox homeostasis and redox-mediated signaling mechanisms are fundamental elements of human biology. Physiological levels of reactive oxygen species (ROS) and reactive nitrogen species (RNS) modulate a range of functional processes at the cellular, tissue, and systemic levels in healthy humans. Conversely, excess ROS or RNS activity can disrupt function, impairing the performance of daily activities. This article analyzes the impact of redox mechanisms on extreme task performance. Such activities (a) require complex motor skills, (b) are physically demanding, (c) are performed in an extreme environment, (d) require high-level executive function, and (e) pose an imminent risk of injury or death. The current analysis utilizes race car driving as a representative example. The physiological challenges of this extreme task include physical exertion, g loading, vibration, heat exposure, dehydration, noise, mental demands, and emotional factors. Each of these challenges stimulates ROS signaling, RNS signaling, or both, alters redox homeostasis, and exerts pro-oxidant effects at either the tissue or systemic levels. These redox mechanisms appear to promote physiological stress during race car driving and impair the performance of driver athletes.
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Affiliation(s)
- Michael B Reid
- College of Health and Human Performance, University of Florida, Gainesville, FL 32611, USA
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Ugelvig Petersen K, Hærvig KK, Bonde JP, Hougaard KS, Toft G, Ramlau-Hansen CH, Høy Jensen J, Deen L, Tøttenborg SS. Fetal exposure to maternal stress and male reproductive function in a cohort of young adults. Fertil Steril 2022; 117:1255-1265. [DOI: 10.1016/j.fertnstert.2022.02.006] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/15/2021] [Revised: 02/03/2022] [Accepted: 02/03/2022] [Indexed: 11/04/2022]
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Is work-family conflict a pathway between job strain components and binge eating? A cross-sectional analysis from the ELSA-Brasil study. J Eat Disord 2022; 10:16. [PMID: 35123594 PMCID: PMC8817540 DOI: 10.1186/s40337-022-00540-x] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 08/27/2021] [Accepted: 01/23/2022] [Indexed: 11/17/2022] Open
Abstract
BACKGROUND Job strain has been reported as a trigger for binge eating, yet the underlying mechanisms have been unclear. The aim of this study was to evaluate whether work-family conflict is a pathway in the association between job strain and binge eating, considering the possible effect-modifying influence of body mass index (BMI). METHODS This cross-sectional analysis included 12,084 active civil servants from the multicenter Brazilian Longitudinal Study of Adult Health (ELSA-Brasil). Job strain was assessed using the Demand-Control-Support Questionnaire. Work-family conflict was considered as a latent variable comprising three items. Binge eating was defined as eating a large amount of food in less than 2 h at least twice a week in the last six months with a sense of lack of control over what and how much was eaten. Structural equation modelling was used to test the role of work-family conflict in the association between job strain and binge eating, stratifying for BMI. RESULTS For individuals of normal weight, positive associations were found between skill discretion and binge eating (standardized coefficient [SC] = 0.209, 95%CI = 0.022-0.396), and between psychological job demands and work-family conflict (SC = 0.571, 95%CI = 0.520-0.622), but no statistically significant indirect effect was found. In overweight individuals, psychological job demands, skill discretion, and work-family conflict were positively associated with binge eating (SC = 0.099, 95%CI = 0.005-0.193; SC = 0.175, 95%CI = 0.062-0.288; and SC = 0.141, 95%CI = 0.077-0.206, respectively). Also, work-family conflict was observed to be a pathway on the associations of psychological job demands and decision authority with binge eating (SC = 0.084, 95%CI = 0.045-0.122; and SC = - 0.008, 95%CI = - 0.015- - 0.001, respectively). CONCLUSIONS Work-family conflict partly explains effects of high levels of psychological job demands and low levels of decision authority on binge eating among overweight individuals. Moreover, skill discretion is positively associated with binge eating, regardless of BMI category.
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OUP accepted manuscript. Toxicol Res (Camb) 2022; 11:426-436. [PMID: 35782652 PMCID: PMC9244228 DOI: 10.1093/toxres/tfac022] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/06/2021] [Revised: 02/28/2022] [Accepted: 04/05/2022] [Indexed: 11/14/2022] Open
Abstract
Objective The central objective of this study was to investigate the cumulative effects restraint stress and sodium arsenite on reproductive health in male rats. Methods Healthy male Wistar rats were allocated into 4 groups (n = 8). Animals in group 1 served as controls and did not subjected to any stress. Rats in groups 2, 3, and 4 were subjected to either restraint stress (5 h/day) or maintained on arsenic (25 ppm) via drinking water or both for 65 days. After completion of the experimental period, all the rats were analyzed for selected reproductive endpoints. Results Restraint stress or sodium arsenite treatment increased serum corticosterone levels, reduced testicular daily sperm count, epididymal sperm viability, motility, membrane integrity, and decreased testicular steroidogenic enzymes such as 3β- and 17β-hydroxysteroid dehydrogenases associated with reduced serum testosterone levels, deteriorated testicular architecture, and reduced activity levels of testicular superoxide dismutase and catalase accompanied by elevated lipid peroxidation levels. In rats subjected to restraint stress and sodium arsenite, a significant decrease in selected sperm qualitative and quantitative parameters, serum testosterone levels were observed as compared with rats subjected to sodium arsenite alone. A significant increase in the levels of lipid peroxidation with a concomitant decrease in the activities of antioxidant enzymes was observed in the testis of rats subjected to both restraint stress and sodium arsenite treatment as compared with sodium arsenite alone intoxicated rats. Surprisingly, serum corticosterone levels were significantly elevated in rats following both stressors as compared with arsenic alone treated rats. Analysis of atomic absorption spectroscopy revealed that the accumulation of arsenic in the testis of arsenic-treated and arsenic plus immobilization stress groups was significant as compared with controls. Conclusions Based on the findings, it can be concluded that deterioration of male reproductive health could be accelerated in arsenic intoxicated rats following restraint stress.
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Jun JS, Sunwoo JS, Byun JI, Shin JW, Kim TJ, Schenck CH, Jung KY. Emotional and Environmental Factors Aggravating Dream Enactment Behaviors in Patients with Isolated REM Sleep Behavior Disorder. Nat Sci Sleep 2022; 14:1713-1720. [PMID: 36187325 PMCID: PMC9519124 DOI: 10.2147/nss.s372823] [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: 04/29/2022] [Accepted: 09/14/2022] [Indexed: 11/29/2022] Open
Abstract
OBJECTIVE To identify emotional and environmental factors that aggravate dream enactment behaviors (DEBs) in isolated rapid eye movement (REM) sleep behavior disorder (iRBD). METHODS In this cross-sectional study, a total of 96 polysomnography-confirmed iRBD patients (mean age, 68.5 years; men, 68%) and their caregivers completed questionnaires regarding potential aggravating factors related to DEBs, including emotion/feelings (stress, anger, anxiety, depressive mood, fatigue, pain), food (alcohol, caffeine, overeating in the evening, fasting/hunger), activities and sleep patterns (strenuous exercise, sex before bed, conflict/fighting, sleep deprivation, oversleeping, sleeping away from home, watching TV before bed), weather/environmental factors (cloudy or rainy weather, heat, cold, noise) and medication (skipping medication, taking hypnotics). RESULTS The patients reported that stress (61%) was the most aggravating factor for DEBs, followed by anxiety (56%), anger (51%), fatigue (49%), and watching TV before bed (46%). Similarly, the caregivers reported that these factors were most relevant to the aggravation of DEBs in the patients, although some factors were ranked differently. In the subgroup analyses, aggravating factors for DEBs did not differ by RBD symptom severity. Interestingly, the proportion of patients experiencing DEB aggravation by stress, anxiety and depressive mood was significantly higher in women than in men. Furthermore, depressed patients reported that stress and cloudy or rainy weather made DEBs worse than nondepressed patients. CONCLUSION Our results suggest that DEBs in iRBD patients may be mainly aggravated by emotional factors. These negative effects appeared to be more prominent in female and depressed patients.
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Affiliation(s)
- Jin-Sun Jun
- Department of Neurology, Kangnam Sacred Heart Hospital, Hallym University College of Medicine, Seoul, Republic of Korea
| | - Jun-Sang Sunwoo
- Department of Neurology, Kangbuk Samsung Hospital, Seoul, Republic of Korea
| | - Jung-Ick Byun
- Department of Neurology, Kyung Hee University Hospital at Gangdong, Seoul, Republic of Korea
| | - Jung-Won Shin
- Department of Neurology, CHA Bundang Medical Center, CHA University, Seongnam, Republic of Korea
| | - Tae-Joon Kim
- Department of Neurology, Ajou University School of Medicine, Suwon, Republic of Korea
| | - Carlos H Schenck
- Minnesota Regional Sleep Disorders Center, and Department of Psychiatry, Hennepin County Medical Center and University of Minnesota Medical School, Minneapolis, MN, USA
| | - Ki-Young Jung
- Department of Neurology, Seoul National University Hospital, Seoul National University College of Medicine, Seoul, Republic of Korea
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Rodrigues-Santos I, Kalil-Cutti B, Anselmo-Franci JA. Low Corticosterone Response to Stress in a Perimenopausal Rat Model Is Associated with the Hypoactivation of PaMP Region of the Paraventricular Nucleus and Can Be Corrected by Exogenous Progesterone Supplementation. Neuroendocrinology 2022; 112:467-480. [PMID: 34348338 DOI: 10.1159/000518336] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/08/2020] [Accepted: 06/30/2021] [Indexed: 12/30/2022]
Abstract
INTRODUCTION The transition to menopause is characterized by mood, behavioral and metabolic changes. However, little is known about the changes in adrenal response to stress. AIMS The aim of the study was to evaluate, in an animal model of perimenopause induced by 4-vinylcyclohexene diepoxide (VCD), (1) the endocrine and neuronal stress system activity in response to acute restraint stress and (2) the effect of hormonal therapy in this response. METHODS Prepubertal female Wistar rats received daily injections (s.c) of oil or VCD (160 mg/kg) for 15 days. On 56th-66th days after treatment onset, the groups to be stressed received s.c implants containing placebo (PL), 17β-estradiol (E2), progesterone (P4), or E2P4. At 80 ± 5 days after VCD/oil injections, stress was applied for 30 min. Blood samples were collected immediately after and 60 min after the end of stress session from the tail tip followed by transcardial perfusion with PFA 4% for the assessment of c-Fos expression in the medial and posterior parvocellular (PaMP and PaPo) subdivisions of the paraventricular nucleus (PVN) and c-Fos/tyrosine hydroxylase in the locus coeruleus (LC) using immunohistochemistry. Control groups were not stressed nor received hormone therapy. RESULTS While basal corticosterone levels were similar between VCD-periestropausal and control rats, the secretion in response to stress in the VCD group was lower. This effect was prevented by P4 therapy. Inversely, basal levels of P4 were lower in VCD-periestropausal rats than in the controls, and no differences were found in response to stress between the groups. As expected, 30-min restraint stress increased c-Fos immunoreactivity in all brain areas studied in both control and VCD-periestropausal rats. However, the c-Fos increase in the PaMP region was attenuated. In all areas examined, there were no significant differences in the number of c-Fos-positive neurons across hormonal therapies. DISCUSSION/CONCLUSION This is the first study to demonstrate in a perimenopausal rat model that reproductive aging is accompanied by inadequate secretion of corticosterone in response to acute stress in association with the hypoactivation of the PaMP region of the PVN, while adrenal P4 response is preserved. Moreover, P4 therapy was shown to attenuate the effects of progressive ovarian failure on adrenal functioning during stress.
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Affiliation(s)
- Isabelle Rodrigues-Santos
- Department of Physiology, School of Medicine of Ribeirão Preto, University of São Paulo, Ribeirão Preto, São Paulo, Brazil,
| | - Bruna Kalil-Cutti
- Department of Physiology, Institute of Biomedical Science, Federal University of Alfenas, Alfenas, São Paulo, Brazil
| | - Janete Aparecida Anselmo-Franci
- Department of Basic and Oral Biology of Dentistry School of Ribeirão Preto, Laboratory of Neuroendocrinology, University of São Paulo, Ribeirão Preto, São Paulo, Brazil
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Miczek KA, DiLeo A, Newman EL, Akdilek N, Covington HE. Neurobiological Bases of Alcohol Consumption After Social Stress. Curr Top Behav Neurosci 2022; 54:245-281. [PMID: 34964935 PMCID: PMC9698769 DOI: 10.1007/7854_2021_273] [Citation(s) in RCA: 2] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/03/2023]
Abstract
The urge to seek and consume excessive alcohol is intensified by prior experiences with social stress, and this cascade can be modeled under systematically controlled laboratory conditions in rodents and non-human primates. Adaptive coping with intermittent episodes of social defeat stress often transitions to maladaptive responses to traumatic continuous stress, and alcohol consumption may become part of coping responses. At the circuit level, the neural pathways subserving stress coping intersect with those for alcohol consumption. Increasingly discrete regions and connections within the prefrontal cortex, the ventral and dorsal striatum, thalamic and hypothalamic nuclei, tegmental areas as well as brain stem structures begin to be identified as critical for reacting to and coping with social stress while seeking and consuming alcohol. Several candidate molecules that modulate signals within these neural connections have been targeted in order to reduce excessive drinking and relapse. In spite of some early clinical failures, neuropeptides such as CRF, opioids, or oxytocin continue to be examined for their role in attenuating stress-escalated drinking. Recent work has focused on neural sites of action for peptides and steroids, most likely in neuroinflammatory processes as a result of interactive effects of episodic social stress and excessive alcohol seeking and drinking.
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Affiliation(s)
- Klaus A. Miczek
- Department of Psychology, Tufts University, Medford, MA, USA,Department of Neuroscience, Tufts University, Boston, MA, USA
| | - Alyssa DiLeo
- Department of Neuroscience, Tufts University, Boston, MA, USA
| | - Emily L. Newman
- Department of Psychiatry, Harvard Medical School, Belmont, MA, USA
| | - Naz Akdilek
- Department of Psychology, Tufts University, Medford, MA, USA
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Moraes DA, Machado RB, Koban M, Hoffman GE, Suchecki D. The Pituitary-Adrenal Response to Paradoxical Sleep Deprivation Is Similar to a Psychological Stressor, Whereas the Hypothalamic Response Is Unique. Front Endocrinol (Lausanne) 2022; 13:885909. [PMID: 35880052 PMCID: PMC9308007 DOI: 10.3389/fendo.2022.885909] [Citation(s) in RCA: 5] [Impact Index Per Article: 2.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/28/2022] [Accepted: 05/03/2022] [Indexed: 11/25/2022] Open
Abstract
Stressors of different natures induce activation of the hypothalamic-pituitary-adrenal (HPA) axis at different magnitudes. Moreover, the HPA axis response to repeated exposure is usually distinct from that elicited by a single session. Paradoxical sleep deprivation (PSD) augments ACTH and corticosterone (CORT) levels, but the nature of this stimulus is not yet defined. The purpose of the present study was to qualitatively compare the stress response of animals submitted to PSD to that of rats exposed once or four times to cold, as a physiological stress, movement restraint (RST) as a mixed stressor and predator odour (PRED) as the psychological stressor, whilst animals were submitted for 1 or 4 days to PSD and respective control groups. None of the stressors altered corticotropin releasing factor immunoreactivity in the paraventricular nucleus of the hypothalamus (PVN), median eminence (ME) or central amygdala, compared to control groups, whereas vasopressin immunoreactivity in PSD animals was decreased in the PVN and increased in the ME, indicating augmented activity of this system. ACTH levels were higher after repeated stress or prolonged PSD than after single- or 1 day-exposure and control groups, whereas the CORT response was habituated by repeated stress, but not by 4-days PSD. This dissociation resulted in changes in the CORT : ACTH ratio, with repeated cold and RST decreasing the ratio compared to single exposure, but no change was seen in PRED and PSD groups. Comparing the magnitude and pattern of pituitary-adrenal response to the different stressors, PSD-induced responses were closer to that shown by PRED-exposed rats. In contrast, the hypothalamic response of PSD-exposed rats was unique, inasmuch as this was the only stressor which increased the activity of the vasopressin system. In conclusion, we propose that the pituitary-adrenal response to PSD is similar to that induced by a psychological stressor.
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Affiliation(s)
- Danilo A. Moraes
- Department of Psychobiology, Universidade Federal de São Paulo, São Paulo, Brazil
| | - Ricardo B. Machado
- Grupo de Pesquisa em Psicossomática, Universidade Ibirapuera, São Paulo, Brazil
| | - Michael Koban
- Department of Biology, Morgan State University, Baltimore, MD, United States
| | - Gloria E. Hoffman
- Department of Biology, Morgan State University, Baltimore, MD, United States
| | - Deborah Suchecki
- Department of Psychobiology, Universidade Federal de São Paulo, São Paulo, Brazil
- *Correspondence: Deborah Suchecki,
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Nosjean A, Granon S. Brain Adaptation to Acute Stress: Effect of Time, Social Buffering, and Nicotinic Cholinergic System. Cereb Cortex 2021; 32:3990-4011. [PMID: 34905774 DOI: 10.1093/cercor/bhab461] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/28/2021] [Revised: 11/09/2021] [Accepted: 11/10/2021] [Indexed: 11/13/2022] Open
Abstract
Both social behavior and stress responses rely on the activity of the prefrontal cortex (PFC) and basolateral nucleus of the amygdala (BLA) and on cholinergic transmission. We previously showed in adult C57BL/6J (B6) mice that social interaction has a buffering effect on stress-related prefrontal activity, depending on the β2-/- cholinergic nicotinic receptors (nAChRs, β2-/- mice). The latency for this buffer to emerge being short, we question here whether the associated brain plasticity, as reflected by regional c-fos protein quantification and PFC-BLA functional connectivity, is modulated by time. Overall, we show that time normalized the stress-induced PFC hyperactivation in B6 mice and PFC hypo-activation in β2-/- mice, with no effect on BLA. It also triggered a multitude of functional links between PFC subareas, and between PFC and BLA in B6 mice but not β2-/- mice, showing a central role of nAChRs in this plasticity. Coupled with social interaction and time, stress led to novel and drastic diminution of functional connectivity within the PFC in both genotypes. Thus, time, emotional state, and social behavior induced dissociated effects on PFC and BLA activity and important cortico-cortical reorganizations. Both activity and plasticity were under the control of the β2-nAChRs.
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Affiliation(s)
- Anne Nosjean
- Université Paris-Saclay, CNRS, Institut des Neurosciences Paris-Saclay (NeuroPSI), 91400 Saclay, France
| | - Sylvie Granon
- Université Paris-Saclay, CNRS, Institut des Neurosciences Paris-Saclay (NeuroPSI), 91400 Saclay, France
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Cahill B, Poelker-Wells S, Prather JF, Li Y. A Glimpse Into the Sexual Dimorphisms in Major Depressive Disorder Through Epigenetic Studies. Front Neural Circuits 2021; 15:768571. [PMID: 34744641 PMCID: PMC8564393 DOI: 10.3389/fncir.2021.768571] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2021] [Accepted: 09/28/2021] [Indexed: 11/13/2022] Open
Abstract
Depression is an umbrella term used to describe a mood disorder with a broad spectrum of symptoms including a persistent feeling of sadness, loss of interest, and deficits in social behavior. Epigenetic research bridges the environmental and genetic landscape and has the potential to exponentially improve our understanding of such a complex disorder. Depression is also a sexually dimorphic disorder and variations exist within epigenetic modification sites between sexes. These sex-specific mediators may impact behavioral symptomology and could serve as therapeutic targets for treatments to improve behavioral deficits. This mini review will focus on the social behavior perspective of depression and specifically explore the sexually different epigenetic modifications on depression.
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Affiliation(s)
- Branden Cahill
- Department of Zoology and Physiology, University of Wyoming, Laramie, WY, United States
| | - Samuel Poelker-Wells
- Department of Zoology and Physiology, University of Wyoming, Laramie, WY, United States
| | - Jonathan F Prather
- Department of Zoology and Physiology, University of Wyoming, Laramie, WY, United States
| | - Yun Li
- Department of Zoology and Physiology, University of Wyoming, Laramie, WY, United States
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Domarkienė I, Ambrozaitytė L, Bukauskas L, Rančelis T, Sütterlin S, Knox BJ, Maennel K, Maennel O, Parish K, Lugo RG, Brilingaitė A. CyberGenomics: Application of Behavioral Genetics in Cybersecurity. Behav Sci (Basel) 2021; 11:bs11110152. [PMID: 34821613 PMCID: PMC8614761 DOI: 10.3390/bs11110152] [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: 09/08/2021] [Revised: 10/21/2021] [Accepted: 10/29/2021] [Indexed: 11/19/2022] Open
Abstract
Cybersecurity (CS) is a contemporary field for research and applied study of a range of aspects from across multiple disciplines. A cybersecurity expert has an in-depth knowledge of technology but is often also recognized for the ability to view technology in a non-standard way. This paper explores how CS specialists are both a combination of professional computing-based skills and genetically encoded traits. Almost every human behavioral trait is a result of many genome variants in action altogether with environmental factors. The review focuses on contextualizing the behavior genetics aspects in the application of cybersecurity. It reconsiders methods that help to identify aspects of human behavior from the genetic information. And stress is an illustrative factor to start the discussion within the community on what methodology should be used in an ethical way to approach those questions. CS positions are considered stressful due to the complexity of the domain and the social impact it can have in cases of failure. An individual risk profile could be created combining known genome variants linked to a trait of particular behavior using a special biostatistical approach such as a polygenic score. These revised advancements bring challenging possibilities in the applications of human behavior genetics and CS.
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Affiliation(s)
- Ingrida Domarkienė
- Department of Human and Medical Genetics, Institute of Biomedical Sciences, Faculty of Medicine, Vilnius University, LT-08661 Vilnius, Lithuania; (L.A.); (T.R.)
- Correspondence: ; Tel.: +370-(5)-2501788
| | - Laima Ambrozaitytė
- Department of Human and Medical Genetics, Institute of Biomedical Sciences, Faculty of Medicine, Vilnius University, LT-08661 Vilnius, Lithuania; (L.A.); (T.R.)
| | - Linas Bukauskas
- Cybersecurity Laboratory, Institute of Computer Science, Vilnius University, LT-08303 Vilnius, Lithuania; (L.B.); (A.B.)
| | - Tautvydas Rančelis
- Department of Human and Medical Genetics, Institute of Biomedical Sciences, Faculty of Medicine, Vilnius University, LT-08661 Vilnius, Lithuania; (L.A.); (T.R.)
| | - Stefan Sütterlin
- Faculty of Health, Welfare and Organisation, Østfold University College, NO-1757 Halden, Norway; (S.S.); (B.J.K.); (R.G.L.)
- Centre for Digital Forensics and Cyber Security, Tallinn University of Technology, EE-19086 Tallinn, Estonia; (K.M.); (O.M.)
| | - Benjamin James Knox
- Faculty of Health, Welfare and Organisation, Østfold University College, NO-1757 Halden, Norway; (S.S.); (B.J.K.); (R.G.L.)
- Centre for Digital Forensics and Cyber Security, Tallinn University of Technology, EE-19086 Tallinn, Estonia; (K.M.); (O.M.)
- Department of Information Security and Communication Technology, Norwegian University of Science and Technology (NTNU), NO-2802 Gjøvik, Norway;
| | - Kaie Maennel
- Centre for Digital Forensics and Cyber Security, Tallinn University of Technology, EE-19086 Tallinn, Estonia; (K.M.); (O.M.)
| | - Olaf Maennel
- Centre for Digital Forensics and Cyber Security, Tallinn University of Technology, EE-19086 Tallinn, Estonia; (K.M.); (O.M.)
| | - Karen Parish
- Department of Information Security and Communication Technology, Norwegian University of Science and Technology (NTNU), NO-2802 Gjøvik, Norway;
| | - Ricardo Gregorio Lugo
- Faculty of Health, Welfare and Organisation, Østfold University College, NO-1757 Halden, Norway; (S.S.); (B.J.K.); (R.G.L.)
- Center for Cyber and Information Security, Norwegian University of Science and Technology (NTNU), NO-2802 Gjøvik, Norway
| | - Agnė Brilingaitė
- Cybersecurity Laboratory, Institute of Computer Science, Vilnius University, LT-08303 Vilnius, Lithuania; (L.B.); (A.B.)
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Zhang J, Chen R, Wen L, Fan Z, Guo Y, Hu Z, Miao Y. Recent Progress in the Understanding of the Effect of Sympathetic Nerves on Hair Follicle Growth. Front Cell Dev Biol 2021; 9:736738. [PMID: 34513851 PMCID: PMC8427189 DOI: 10.3389/fcell.2021.736738] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/05/2021] [Accepted: 08/02/2021] [Indexed: 11/15/2022] Open
Abstract
Clinical observation and experimental studies have long suggested that the perifollicular nerves have nutritional and regulatory effects on the growth, development, and physiological cycle of hair follicles (HFs), even though the concrete mechanism remains obscure. Recently, with the progress of immunohistochemistry and molecular biology techniques, more innovation has been made in the study of the follicular sympathetic nerves and its nerve-effect factor norepinephrine affecting hair follicle stem cells. This review highlights the progress in the regulation of the sympathetic nervous system toward the growth of HFs.
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Affiliation(s)
- Jiarui Zhang
- Department of Plastic and Aesthetic Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Ruosi Chen
- Department of Plastic and Aesthetic Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Lihong Wen
- Department of Plastic and Aesthetic Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Zhexiang Fan
- Department of Plastic and Aesthetic Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Yilong Guo
- Department of Plastic and Aesthetic Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Zhiqi Hu
- Department of Plastic and Aesthetic Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
| | - Yong Miao
- Department of Plastic and Aesthetic Surgery, Nanfang Hospital, Southern Medical University, Guangzhou, China
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Methods and Challenges in Investigating Sex-Specific Consequences of Social Stressors in Adolescence in Rats: Is It the Stress or the Social or the Stage of Development? Curr Top Behav Neurosci 2021; 54:23-58. [PMID: 34455576 DOI: 10.1007/7854_2021_245] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Adolescence is a time of social learning and social restructuring that is accompanied by changes in both the hypothalamic-pituitary-gonadal axis and the hypothalamic-pituitary-adrenal (HPA) axis. The activation of these axes by puberty and stressors, respectively, shapes adolescent development. Models of social stress in rats are used to understand the consequences of perturbations of the social environment for ongoing brain development. This paper reviews the challenges in investigating the sex-specific consequences of social stressors, sex differences in the models of social stress used in rats and the sex-specific effects on behaviour and provides an overview of sex differences in HPA responding to stressors, the variability in pubertal development and in strains of rats that require consideration in conducting such research, and directions for future research.
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50
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Takahashi A. Social Stress and Aggression in Murine Models. Curr Top Behav Neurosci 2021; 54:181-208. [PMID: 34432257 DOI: 10.1007/7854_2021_243] [Citation(s) in RCA: 0] [Impact Index Per Article: 0] [Reference Citation Analysis] [Abstract] [Key Words] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 10/19/2022]
Abstract
Throughout life, animals engage in a variety of social interactions ranging from the affiliative mother-offspring interaction and juvenile play to aggressive conflict. Deprivation of the appropriate social interaction during early development is stressful and disrupts the development of appropriate social behaviors and emotional responses later in life. Additionally, agonistic encounters can induce stress responses in both dominant and subordinate individuals. This review focuses on the social stress that escalates aggressive behavior of animals and discusses the known neurobiological and physiological mechanisms underlying the link between social stress and aggression. Social instigation, a brief exposure to a rival without physical contact, induces aggressive arousal in dominant animals and escalates aggressive behaviors in the following agonistic encounter. Furthermore, the experience of winning an aggressive encounter is known to be as rewarding as addictive drugs, and the experience of repeatedly winning induces addiction-like behavioral and neurobiological changes and leads to abnormal aggressive behaviors. Social isolation stress in early development from neonatal to juvenile and adolescent periods also affects aggressive behavior, but these effects largely depend on the strain, sex, and species as well as the stage of development in which isolation stress is experienced. In conclusion, understanding neurobiological mechanisms underlying the link between social stress and aggression will provide an important insight for the development of more effective and tolerable treatments for maladaptive aggression in humans.
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Affiliation(s)
- Aki Takahashi
- Laboratory of Behavioral Neuroendocrinology, Faculty of Human Sciences, University of Tsukuba, Tsukuba, Ibaraki, Japan.
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