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Kühnel A, Hagenberg J, Knauer-Arloth J, Ködel M, Czisch M, Sämann PG, Binder EB, Kroemer NB. Stress-induced brain responses are associated with BMI in women. Commun Biol 2023; 6:1031. [PMID: 37821711 PMCID: PMC10567923 DOI: 10.1038/s42003-023-05396-8] [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: 03/18/2023] [Accepted: 09/27/2023] [Indexed: 10/13/2023] Open
Abstract
Overweight and obesity are associated with altered stress reactivity and increased inflammation. However, it is not known whether stress-induced changes in brain function scale with BMI and if such associations are driven by peripheral cytokines. Here, we investigate multimodal stress responses in a large transdiagnostic sample using predictive modeling based on spatio-temporal profiles of stress-induced changes in activation and functional connectivity. BMI is associated with increased brain responses as well as greater negative affect after stress and individual response profiles are associated with BMI in females (pperm < 0.001), but not males. Although stress-induced changes reflecting BMI are associated with baseline cortisol, there is no robust association with peripheral cytokines. To conclude, alterations in body weight and energy metabolism might scale acute brain responses to stress more strongly in females compared to males, echoing observational studies. Our findings highlight sex-dependent associations of stress with differences in endocrine markers, largely independent of peripheral inflammation.
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Affiliation(s)
- Anne Kühnel
- Section of Medical Psychology, Department of Psychiatry and Psychotherapy, Faculty of Medicine, University of Bonn, Bonn, Germany.
- Department of Translational Research in Psychiatry, Max Planck Institute of Psychiatry, Munich, Germany.
- International Max Planck Research School for Translational Psychiatry (IMPRS-TP), Munich, Germany.
| | - Jonas Hagenberg
- Department of Translational Research in Psychiatry, Max Planck Institute of Psychiatry, Munich, Germany
- International Max Planck Research School for Translational Psychiatry (IMPRS-TP), Munich, Germany
- Institute of Computational Biology, Helmholtz Zentrum Munich, Neuherberg, Germany
| | - Janine Knauer-Arloth
- Department of Translational Research in Psychiatry, Max Planck Institute of Psychiatry, Munich, Germany
- Institute of Computational Biology, Helmholtz Zentrum Munich, Neuherberg, Germany
| | - Maik Ködel
- Department of Translational Research in Psychiatry, Max Planck Institute of Psychiatry, Munich, Germany
| | | | | | - Elisabeth B Binder
- Department of Translational Research in Psychiatry, Max Planck Institute of Psychiatry, Munich, Germany.
- German Center for Mental Health, Tübingen, Germany.
| | - Nils B Kroemer
- Section of Medical Psychology, Department of Psychiatry and Psychotherapy, Faculty of Medicine, University of Bonn, Bonn, Germany
- German Center for Mental Health, Tübingen, Germany
- Department of Psychiatry and Psychotherapy, Tübingen Center for Mental Health (TüCMH), University of Tübingen, Tübingen, Germany
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Shiraseb F, Mirzababaei A, Daneshzad E, Khosravinia D, Clark CCT, Mirzaei K. The association of dietary approaches to stop hypertension (DASH) and Mediterranean diet with mental health, sleep quality and chronotype in women with overweight and obesity: a cross-sectional study. Eat Weight Disord 2023; 28:57. [PMID: 37395824 DOI: 10.1007/s40519-023-01581-0] [Citation(s) in RCA: 1] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Grants] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 04/11/2023] [Accepted: 06/13/2023] [Indexed: 07/04/2023] Open
Abstract
PURPOSE Mental and sleep disorders are global public health problems, especially in Middle Eastern countries, and are significantly associated with circadian rhythm. This study sought to investigate the association between the dietary approaches to stop hypertension (DASH) and Mediterranean diet scores and mental health, sleep quality, and circadian rhythm. METHODS We enrolled 266 overweight and obese women, and depression, anxiety, and stress scale (DASS) score, Pittsburgh Sleep Quality Index (PSQI), and Morning-Evening Questionnaire (MEQ), were assessed. The Mediterranean and DASH diet score was measured using a validated semi-quantitative Food Frequency Questionnaire (FFQ). The physical activity was evaluated using the International Physical Activity Questionnaire (IPAQ). Analysis of variance and analysis of covariance, chi-square, and multinomial logistic regression tests were used as appropriate. RESULTS Our results showed that there was a significant inverse association between adherence to the Mediterranean diet and mild and moderate anxiety scores (p < 0.05). In addition, there was an inverse association between adherence to the DASH diet and the risk of severe depression and extremely severe stress scores (p < 0.05). Moreover, higher adherence to both dietary scores was associated with good sleep quality (p < 0.05). There was a significant relationship between circadian rhythm and the DASH diet (p < 0.05). CONCLUSION A significant association exists between a DASH and Mediterranean diet with sleep status, mental health, and chronotype in women of childbearing age with obesity and overweight. LEVEL OF EVIDENCE Level V, Cross-sectional observational study.
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Affiliation(s)
- Farideh Shiraseb
- Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences (TUMS), P.O. Box: 14155-6117, Tehran, Iran
| | - Atieh Mirzababaei
- Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences (TUMS), P.O. Box: 14155-6117, Tehran, Iran
| | - Elnaz Daneshzad
- Non-Communicable Diseases Research Center, Alborz University of Medical Sciences, Karaj, Iran
| | - Darya Khosravinia
- Department of Nutrition, Science and Research Branch, Islamic Azad University, Tehran, Iran
| | - Cain C T Clark
- Centre for Intelligent Healthcare, Coventry University, Coventry, CV1 5FB, UK
| | - Khadijeh Mirzaei
- Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences (TUMS), P.O. Box: 14155-6117, Tehran, Iran.
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Schaper SJ, Wölk E, Hofmann T, Friedrich T, Römer M, de Punder K, Rose M, Stengel A. NUCB2/nesfatin-1 in the acute stress response of obese women with high and low anxiety. Psychoneuroendocrinology 2023; 155:106325. [PMID: 37385089 DOI: 10.1016/j.psyneuen.2023.106325] [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: 03/28/2023] [Revised: 06/20/2023] [Accepted: 06/21/2023] [Indexed: 07/01/2023]
Abstract
NUCB2/nesfatin-1 is an anorexigenic peptide hormone first known for its effects on energy homeostasis. More recently, a growing evidence suggests a role of NUCB2/nesfatin-1 in emotion regulation, particularly in the modulation of anxiety, depression and emotional stress response. Since stress-related mood disorders are often comorbid with obesity, we investigated the effect of acute psychosocial stress on circulating NUCB2/nesfatin-1 in obese women and normal-weight controls and its association with symptoms of anxiety. Forty women, 20 obese and 20 normal-weight controls, (aged between 27 and 46 years) were exposed to the Trier Social Stress Test (TSST). We assessed changes of plasma NUCB2/nesfatin-1, salivary cortisol, heart rate and subjective emotional state. Symptoms of anxiety (GAD-7), depressiveness (PHQ-9), perceived stress (PSQ-20), disordered eating (EDE-Q, EDI-2) and health-related quality of life (SF-8) were measured psychometrically. Obese women were further subdivided in a high and low anxiety group. Women with obesity displayed higher psychopathology compared to normal-weight controls. The TSST induced a biological and psychological stress response in both groups (p < 0.001). In normal-weight controls NUCB2/nesfatin-1 increased in response to stress (p = 0.011) and decreased during recovery (p < 0.050), while in obese women only the decrease during recovery was significant (p = 0.002). Obese women with high anxiety displayed higher NUCB2/nesfatin-1 levels than those in the low anxiety group (TSST: +34 %, p = 0.008; control condition: +52 %, p = 0.013). Our data substantiate the involvement of NUCB2/nesfatin-1 in the modulation of stress and anxiety. It remains unclear whether the attenuated stress response in obese subjects is due to metabolic changes or mental comorbidity.
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Affiliation(s)
- Selina Johanna Schaper
- Charité Center for Internal Medicine and Dermatology, Department for Psychosomatic Medicine, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, 12203 Berlin, Germany
| | - Ellen Wölk
- Charité Center for Internal Medicine and Dermatology, Department for Psychosomatic Medicine, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, 12203 Berlin, Germany
| | - Tobias Hofmann
- Charité Center for Internal Medicine and Dermatology, Department for Psychosomatic Medicine, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, 12203 Berlin, Germany; Department of Psychosomatic Medicine and Psychotherapy, DRK Kliniken Berlin Wiegmann Klinik, Berlin, Germany
| | - Tiemo Friedrich
- Charité Center for Internal Medicine and Dermatology, Department for Psychosomatic Medicine, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, 12203 Berlin, Germany
| | - Marthe Römer
- Charité Center for Internal Medicine and Dermatology, Department for Psychosomatic Medicine, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, 12203 Berlin, Germany
| | - Karin de Punder
- Institute of Medical Psychology, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, 10117 Berlin, Germany; Institute of Psychology, Department of Clinical Psychology-II, University of Innsbruck, Austria
| | - Matthias Rose
- Charité Center for Internal Medicine and Dermatology, Department for Psychosomatic Medicine, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, 12203 Berlin, Germany; Department of Quantitative Health Sciences, University of Massachusetts Medical School, Worcester, MA, USA
| | - Andreas Stengel
- Charité Center for Internal Medicine and Dermatology, Department for Psychosomatic Medicine, Charité-Universitätsmedizin Berlin, Corporate Member of Freie Universität Berlin, Humboldt-Universität zu Berlin, and Berlin Institute of Health, 12203 Berlin, Germany; Department of Psychosomatic Medicine and Psychotherapy, Medical University Hospital Tübingen, 72076 Tübingen, Germany.
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Herhaus B, Ghassabei S, Petrowski K. Obesity: Heart Rate Variability during standardized psychosocial stress induction. Biol Psychol 2023; 178:108509. [PMID: 36736572 DOI: 10.1016/j.biopsycho.2023.108509] [Citation(s) in RCA: 3] [Impact Index Per Article: 3.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/06/2021] [Revised: 01/25/2023] [Accepted: 01/26/2023] [Indexed: 02/05/2023]
Abstract
Obesity is related to a higher risk of cardiovascular diseases (CVD). An altered stress reactivity of the parasympathetic nervous system (PNS) is a promising predictor of CVD and other negative health outcomes. Therefore, the aim of this study was to compare heart rate (HR) and heart rate variability parameters, root mean square successive differences (RMSSD) and power in the high frequency range 0.15-0.4 Hz (HF-HRV), of individuals with obesity and healthy weight controls during psychosocial stress induction. Thirty-four obese men and women (BMI: 33.80 ± 4.62 kg/m²), and thirty-four age- and gender-matched healthy weight controls (BMI: 22.29 ± 1.81 kg/m²) underwent the Trier Social Stress Test (TSST). Before, during, and after the TSST, their HR, RMSSD, and HF-HRV were measured. The individuals with obesity showed a lower stress reactivity in HR, and less stress recovery in RMSSD, compared to healthy weight controls. Obesity appears related to blunted HR reactivity, which is associated with CVD. In addition, impaired recovery of RMSSD also found in individuals with obesity may reflect health-damaging processes as well.
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Affiliation(s)
- Benedict Herhaus
- Medical Psychology and Medical Sociology, University Medical Center of the Johannes Gutenberg University of Mainz, Mainz, Germany.
| | - Shiwa Ghassabei
- Medical Psychology and Medical Sociology, University Medical Center of the Johannes Gutenberg University of Mainz, Mainz, Germany
| | - Katja Petrowski
- Medical Psychology and Medical Sociology, University Medical Center of the Johannes Gutenberg University of Mainz, Mainz, Germany
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5
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Li G, Zhao D, Wang Q, Zhou M, Kong L, Fang M, Li P. Infertility-related stress and quality of life among infertile women with polycystic ovary syndrome: Does body mass index matter? J Psychosom Res 2022; 158:110908. [PMID: 35421758 DOI: 10.1016/j.jpsychores.2022.110908] [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: 11/25/2021] [Revised: 03/24/2022] [Accepted: 04/03/2022] [Indexed: 11/16/2022]
Abstract
OBJECTIVE Infertility and obesity are common among women with Polycystic ovary syndrome (PCOS) and related to poor quality of life (QoL). Obesity may confer an elevated adverse effect of infertility-related stress given its relationship with increased susceptibility to stress. This study aimed to investigate the association of infertility-related stress with QoL among infertile women with PCOS, and to evaluate whether body mass index (BMI) modifies this association. METHODS A cross-sectional study was conducted with 306 participants recruited from the infertility outpatient clinic. A self-administered, structured questionnaire including COMPI Fertility Problem Stress Scale (COMPI-FPSS) and the modified PCOS health-related QoL questionnaire (MPCOSQ) was conducted in this study. The moderation model was conducted by the PROCESS macro using SPSS. RESULTS The mean score of QoL was 142.67 (SD = 20.11), ranged from 93 to 183 (theoretical range = 30-210). QoL was negatively associated with infertility-related stress (r = -0.373, P < 0.001). Moderation analysis indicated that the interaction term between infertility-related stress and BMI significantly predicted QoL (β = -0.154, P = 0.005, f2 = 0.03) as well as emotional disturbance (β = -0.170, P = 0.002, f2 = 0.04). Specifically, higher BMI significantly exacerbated the effect of infertility-related stress on QoL and emotional disturbance. CONCLUSION Infertile women with PCOS experienced poor QoL. The moderation role of BMI provides a better understanding of individual difference in relationship between infertility-related stress and QoL. Interventions aiming to improve QoL among infertile women with PCOS should focus on alleviating infertility-related stress, especially among women with high BMI.
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Affiliation(s)
- Guopeng Li
- Department of Health Psychology, School of Nursing and Rehabilitation, Cheeloo College of Medicine, Shandong University, 44 Wenhua West Road, Jinan, Shandong 250012, PR China
| | - Di Zhao
- Department of Health Psychology, School of Nursing and Rehabilitation, Cheeloo College of Medicine, Shandong University, 44 Wenhua West Road, Jinan, Shandong 250012, PR China
| | - Qing Wang
- Department of Health Psychology, School of Nursing and Rehabilitation, Cheeloo College of Medicine, Shandong University, 44 Wenhua West Road, Jinan, Shandong 250012, PR China
| | - Miao Zhou
- Department of Health Psychology, School of Nursing and Rehabilitation, Cheeloo College of Medicine, Shandong University, 44 Wenhua West Road, Jinan, Shandong 250012, PR China
| | - Linghua Kong
- Department of Molecular Medicine and Surgery, Karolinska Institutet, Stockholm, Sweden
| | - Mei Fang
- Center for reproductive medicine, Shandong University, Jingliu Road, Shizhong District, Jinan, Shandong 250000, PR China
| | - Ping Li
- Department of Health Psychology, School of Nursing and Rehabilitation, Cheeloo College of Medicine, Shandong University, 44 Wenhua West Road, Jinan, Shandong 250012, PR China.
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6
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Smith BE, Miles TP, Elkins J, Barkin JL, Ebell MH, Ezeamama AE. The Impact of Stressful Life Events on the Incidence of Type 2 Diabetes in U.S. Adults From the Health and Retirement Study. J Gerontol B Psychol Sci Soc Sci 2020; 75:640-649. [PMID: 29635530 DOI: 10.1093/geronb/gby040] [Citation(s) in RCA: 7] [Impact Index Per Article: 1.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/15/2017] [Indexed: 12/11/2022] Open
Abstract
OBJECTIVES We evaluated the association between cumulative stressful life events (SLE) and type of stress (lifetime vs recent) and incident diabetes (Type 2 diabetes mellitus [T2DM]) in middle-aged U.S. adults. METHODS Data from the 2006-2014 waves of the Health and Retirement Study (HRS) were analyzed (n = 7,956). Stress-related differences in age at T2DM diagnosis were estimated using Cox proportional hazards models. RESULTS The adjusted risk of T2DM significantly increased by 6% per unit increase in cumulative SLE (95% confidence interval [CI] = 1.03, 1.11), by 5% per unit increase in lifetime stress (95% CI = 1.00, 1.09), and by 23% per unit increase in recent stress (95% CI = 1.12, 1.36). Each level of cumulative SLE (1, 2, 3, and ≥4 events) and recent stress (1 and ≥2 events) compared to no stress was significantly associated with an increased risk of T2DM. Each level of lifetime stress compared to no stress was significantly associated with an elevated risk of T2DM except for 3 events. DISCUSSION Cumulative SLE and type of stress were associated with incident T2DM in middle-aged adults. Reducing the direct effect of stress with management interventions may reduce the indirect effect of developing T2DM and warrants further investigation.
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Affiliation(s)
- Betsy E Smith
- Department of Internal Medicine, Mercer University School of Medicine, Macon, Georgia
| | - Toni P Miles
- Department of Epidemiology and Biostatistics, College of Public Health, The University of Georgia, Athens
| | | | - Jennifer L Barkin
- Department of Community Medicine, Mercer University School of Medicine, Macon, Georgia
| | - Mark H Ebell
- Department of Epidemiology and Biostatistics, College of Public Health, The University of Georgia, Athens
| | - Amara E Ezeamama
- Department of Psychiatry, College of Osteopathic Medicine, Michigan State University, East Lansing
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Christie AJ, Matthews KA. Childhood Poly-victimization Is Associated With Elevated Body Mass Index and Blunted Cortisol Stress Response in College Women. Ann Behav Med 2020; 53:563-572. [PMID: 30169815 DOI: 10.1093/abm/kay066] [Citation(s) in RCA: 4] [Impact Index Per Article: 1.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
BACKGROUND Childhood interpersonal violence is linked to obesity and central adiposity in adulthood. Victimization experiences are likely to co-occur within individuals, but few studies have examined poly-victimization in the context of obesity and central adiposity. PURPOSE The aim of this study is to evaluate the relationship between poly-victimization and body mass index (BMI) and waist circumference (WC) and to explore whether dysregulation of the hypothalamic-pituitary-adrenal axis, as measured by the cortisol stress response, mediates the relationship. METHODS Healthy undergraduate women were recruited for a laboratory study from an online survey that assessed six different childhood victimization experiences: physical abuse, sexual abuse, peer violence, intimate partner violence, community violence, and witnessing violence. Forty-four women were categorized as poly-victims (2-5 types of violence exposures) and 48 were controls (0 types of violence exposures). Salivary cortisol was measured before and after the Trier Social Stress Test. Cortisol stress response was analyzed by the area under the curve with respect to ground (AUCG). RESULTS Compared with controls, poly-victims had higher BMI (B = 2.03, p = .04) and lower cortisol AUCG (B = -6.70, p < .01), independent of covariates. Poly-victims showed blunted AUCG in response to the stress task compared with controls, independent of covariates (B = -6.70, p < .01). Bootstrapping tests of mediation showed that cortisol response was not a significant mediator of the relationship between poly-victimization and BMI. Secondary analyses among poly-victims showed that the more frequent the violence exposure the higher the BMI. CONCLUSIONS Childhood poly-victimization is linked to higher BMI and blunted cortisol responses in young adult women. Assessment of multiple forms of childhood victimization is recommended.
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Affiliation(s)
- Aimee J Christie
- Department of Palliative Care, Rehabilitation, and Integrative Medicine, The University of Texas MD Anderson Cancer Center, Houston, TX, USA
| | - Karen A Matthews
- Department of Psychiatry, Psychology, and Epidemiology, University of Pittsburgh, Pittsburgh, PA, USA
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Sinha R, Gu P, Hart R, Guarnaccia JB. Food craving, cortisol and ghrelin responses in modeling highly palatable snack intake in the laboratory. Physiol Behav 2019; 208:112563. [PMID: 31145919 PMCID: PMC6620125 DOI: 10.1016/j.physbeh.2019.112563] [Citation(s) in RCA: 29] [Impact Index Per Article: 5.8] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/31/2019] [Revised: 05/25/2019] [Accepted: 05/26/2019] [Indexed: 12/28/2022]
Abstract
Overeating of highly palatable (HP) foods in the ubiquitous HP food cue environment and under stress is associated with weight gain and contributes to the global obesity epidemic. However, subjective and biobehavioral processes that may increase HP overeating are not clear. Using a novel experimental approach, we examined HP food motivation and intake and neuroendocrine responses in the context of food cues, stress and a control neutral relaxing cue exposure in healthy individuals. METHODS Twenty individuals (12 M; 8F; ages 18-45) with body mass index (BMI) in the lean (LN: N = 8; 3/8 female BMI: 18-24.9) or overweight/obese (OW: N = 12; 5/12 female; BMI: 25-37) range were enrolled in a controlled, hospital-based, 3-day laboratory experiment. On each day, subjects were exposed to a brief 5-min individualized guided imagery of stress, food cue or an active neutral-relaxing control cue script, followed by a food snack test (FST), with one imagery condition per day and order of imagery exposure randomized and counterbalanced across subjects. Subjective HP food craving and caloric intake, anxiety, cortisol and total ghrelin was assessed repeatedly during each test day. RESULTS Significant condition and condition × group effects for food craving, anxiety and HP calorie intake were observed, with food cue relative to neutral condition increasing HP food craving and intake across all subjects (p < .001), but stress relative to neutral condition increased HP food craving and intake in the OW but not LN group (p < .01). Pre-snack increases in food craving after exposure to food cues and to stress predicted greater subsequent HP food intake (p's < 0.01). Furthermore, ghrelin increased in the food cue and stress conditions (p < .01), but stress-induced increases in ghrelin was associated with HP food intake only in the OW/OB condition (p < .01). Finally, cortisol increased during food cue exposure and increased cortisol responses were associated with greater HP food caving and with intake (p's < 0.05). CONCLUSIONS These findings, while preliminary, validate a laboratory model of HP food motivation and intake and identify specific subjective and neuroendocrine responses that may play a role in HP snacking with implications for weight gain and obesity risk. (342 words).
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Affiliation(s)
- Rajita Sinha
- Yale University School of Medicine, Department of Psychiatry, New Haven, CT 06159, United States of America.
| | - Peihua Gu
- Yale University, Yale Center for Analytic Sciences, New Haven, CT 06159, United States of America
| | - Rachel Hart
- Yale University School of Medicine, Department of Psychiatry, New Haven, CT 06159, United States of America
| | - J B Guarnaccia
- Yale University School of Medicine, Department of Neurology, New Haven, CT 06519, United States of America
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Zamani B, Daneshzad E, Siassi F, Guilani B, Bellissimo N, Azadbakht L. Association of plant-based dietary patterns with psychological profile and obesity in Iranian women. Clin Nutr 2019; 39:1799-1808. [PMID: 31399262 DOI: 10.1016/j.clnu.2019.07.019] [Citation(s) in RCA: 35] [Impact Index Per Article: 7.0] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 01/02/2019] [Revised: 05/02/2019] [Accepted: 07/19/2019] [Indexed: 11/30/2022]
Abstract
BACKGROUND A bidirectional association exists between psychological disorders and obesity. Also, diet could impact on both of these disorders. The aim of this study was to evaluate the association between plant-based dietary patterns and psychological profile and obesity. METHODS This cross-sectional study was performed in a sample of 435 Iranian women. A validated and reliable semi-quantitative food-frequency questionnaire was used to collect dietary data. Three dietary indices including an overall plant-based diet (PDI), healthful plant-based diet (hPDI), and unhealthful plant-based diet (uPDI) were determined. Body mass index (BMI) and waist circumference (WC) were used to define general and abdominal obesity, respectively. Psychological profile status was determined from the DASS-21 questionnaire. RESULTS We found that higher uPDI scores increased the odds of overall (PDI: 2.62; 95% CI 1.28-5.35, Ptrend = 0.01) and abdominal (PDI: 2.36; 95% CI 1.11-5.02, Ptrend = 0.03) obesity in comparison with lower scores. Moreover, an inverse association was observed between higher PDI and hPDI scores and depression (PDI: 0.41; 95% CI 0.23-0.71, Ptrend = 0.001, hPDI: 0.44; 95% CI 0.25-0.76, Ptrend = 0.003), anxiety (PDI: 0.56; 95% CI 0.33-0.94, Ptrend = 0.03, hPDI: 0.55; 95% CI 0.33-0.94, Ptrend = 0.03), and psychological distress (PDI: 0.44; 95% CI 0.26-0.75, Ptrend = 0.003, hPDI: 0.49; 95% CI 0.29-0.82, Ptrend = 0.009). For uPDI, higher scores were associated with depression (uPDI: 1.91; 95% CI 1.03-3.55, Ptrend = 0.03). CONCLUSIONS A plant-based diet, particularly healthful-rich plant foods were inversely associated with psychological disorders. Furthermore, unhealthy plant foods were associated with increased risk of obesity as well as depression.
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Affiliation(s)
- Behzad Zamani
- Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran; Students' Scientific Research Center (SSRC), Tehran University of Medical Sciences (TUMS), Tehran, Iran
| | - Elnaz Daneshzad
- Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran
| | - Fereydoun Siassi
- Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran
| | - Bijan Guilani
- Department of Clinical Psychology, University of Tehran, Tehran, Iran
| | | | - Leila Azadbakht
- Department of Community Nutrition, School of Nutritional Sciences and Dietetics, Tehran University of Medical Sciences, Tehran, Iran; Diabetes Research Center, Endocrinology and Metabolism Clinical Sciences Institute, Tehran University of Medical Sciences, Tehran, Iran; Department of Community Nutrition, School of Nutrition and Food Science, Isfahan University of Medical Science, Isfahan, Iran.
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10
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Matos TM, Souza-Talarico JND. How stress mediators can cumulatively contribute to Alzheimer's disease An allostatic load approach. Dement Neuropsychol 2019; 13:11-21. [PMID: 31073376 PMCID: PMC6497016 DOI: 10.1590/1980-57642018dn13-010002] [Citation(s) in RCA: 14] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 09/03/2018] [Accepted: 12/17/2018] [Indexed: 11/22/2022] Open
Abstract
Allostatic load is defined as the frequent activation of the neuroendocrine, immunological, metabolic and cardiovascular systems, which makes individuals more susceptible to stress-related health problems. According to this model, physiological dysregulations start to emerge decades before diseases manifest. Consequently, stress research has shifted its attention to anticipating the degree of this dysregulation to better understand the impact of stress hormones and other biomarkers on disease progression. In view of the growing number of studies that demonstrate the influence of modifiable risk factors on cognitive decline, in addition to the effects of chronic stress mediators, the objective of the present review was to present an overview of the development of cognitive changes based on studies on stress and its mediators.
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Affiliation(s)
- Tatiane Martins Matos
- Nurse, Master of Science from the School of Nursing, University of
São Paulo (EE-USP), SP, Brazil
| | - Juliana Nery De Souza-Talarico
- Professor at the Department of Medical-Surgical Nursing, School of
Nursing, University of São Paulo (EE-USP), SP, Brazil. PhD In the Area of
Neurobiology of Stress and Cognition
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11
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Masafi S, Saadat SH, Tehranchi K, Olya R, Heidari M, Malihialzackerini S, Jafari M, Rajabi E. Effect of Stress, Depression and Type D Personality on Immune System in the Incidence of Coronary Artery Disease. Open Access Maced J Med Sci 2018; 6:1533-1544. [PMID: 30159090 PMCID: PMC6108813 DOI: 10.3889/oamjms.2018.217] [Citation(s) in RCA: 13] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 04/19/2018] [Revised: 07/08/2018] [Accepted: 07/18/2018] [Indexed: 12/02/2022] Open
Abstract
BACKGROUND: Psychoneuroimmunology (PNI) is the study of the interaction between psychological processes and the nervous and immune systems of the human body. The impact of psychological factors on the immune system and the role of this system in Coronary Artery Disease (CAD) are confirmed. Coronary Heart Disease (CHD) is arisen due to the failure of blood and oxygen to the heart tissues. AIM: The present study aimed to describe psychoneuroimmunological processes which contribute to CAD and CHD progression. METHOD: Such psychological risk factors like stress, depression and type D personality were investigated here. Psychoneuroimmunological pathways of all three mentioned risk factors were described for CAD. RESULTS: The studies review indicated that stress could be accompanied with myocardial ischemia and help to rupture. The depression involves in the transfer of stable atherosclerotic plaque to unstable, and type D personality is effective in the initial stages of a CAD. CONCLUSION: As more information on cardiovascular immunity becomes available, this will provide a better understanding and thus act as the foundation for the potential development of new treatment strategies for treatment of cardiovascular disorders.
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Affiliation(s)
- Saideh Masafi
- Department of Psychology, Kish International Branch, Islamic Azad University, Kish Island, Iran
| | - Seyed Hassan Saadat
- Behavioral Sciences Research Center, Lifestyle Institute, Baqiyatallah University of Medical Sciences, Tehran, Iran
| | - Katayoun Tehranchi
- Department of Psychology, Kish International Branch, Islamic Azad University, Kish Island, Iran
| | - Roohollah Olya
- Department of Psychology, Kish International Branch, Islamic Azad University, Kish Island, Iran
| | - Mostafa Heidari
- Department of Psychology, Saveh Branch, Islamic Azad University, Saveh, Iran
| | - Saied Malihialzackerini
- Department of Psychology, Kish International Branch, Islamic Azad University, Kish Island, Iran
| | - Mahdi Jafari
- Department of Clinical Psychology, School of Medicine, Shahid Beheshti University of Medical Sciences, Tehran, Iran
| | - Ehsan Rajabi
- Shahid Beheshty University of Medical Science, Tehran, Iran
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Abstract
SUMMARYObesity and depression are conditions that have been linked through a great number of interesting mechanisms. To fully understand the implications of treatment choices it is necessary to continue to investigate the physiology of these two conditions. By examining the background of these problems and considering factors such as stress response, neurological change and systemic inflammation, we propose a cycle linking depression and obesity. With reference to this cycle, we discuss management options, focusing particularly on prescribing choices and current guidelines. An assessment of the medication options is provided demonstrating that prescribing choices can have a significant impact on ongoing physical health. The aim of this discussion is to raise awareness of current research and progress and to see whether the cycle of depression and obesity can be broken.LEARNING OBJECTIVES•Update knowledge of the mechanisms linking depression and obesity•Understand the impact of medication on the cycle linking the two•Consider how we can improve outcomes for patients with depression and/or obesityDECLARATION OF INTERESTNone.
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13
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Herhaus B, Petrowski K. Cortisol Stress Reactivity to the Trier Social Stress Test in Obese Adults. Obes Facts 2018; 11:491-500. [PMID: 30537716 PMCID: PMC6341320 DOI: 10.1159/000493533] [Citation(s) in RCA: 16] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 06/20/2018] [Accepted: 09/05/2018] [Indexed: 11/19/2022] Open
Abstract
OBJECTIVE Approximately 600 million adults worldwide suffer from obesity. In addition to individual's eating behavior and lack of physical activity in the development of obesity and overweight, psychosocial stress as well as hormonal stress reactivity must also be considered as important contributing factors. In the current study we compared the cortisol stress response pathway in a psychosocial stress induction (Trier Social Stress Test; TSST) with obese individuals and normal-weight controls. METHOD 32 obese individuals (17 females; mean age = 33.94 years, SD = 11.31 years) and 32 normal-weight controls (17 females; mean age = 29.09 years, SD = 10.46 years) underwent the TSST. The salivary cortisol responses and three appraisal questionnaires (Primary Appraisal Secondary Appraisal, Visual Analogue Scale, Trier Inventory for Chronic Stress) were measured. RESULTS After stress induction, there was a significant main group difference between the obese individuals and the normal-weight controls for cortisol, with lower baseline and post-stress cortisol levels in the obese individuals. Nevertheless, the obese individuals as well as the normal-weight controls showed no significant difference in the self-reported assessment of the stress condition but some significant differences in the cognitive appraisal of the TSST. CONCLUSION In conclusion, the induction of psychosocial stress showed differences in the cortisol patterns between the obese individuals and the normal-weight controls. Furthermore, the present data suggest that obesity leads to lower cortisol activity, which may indicate alterations in the Hypothalamic-pituitary-adrencortical (HPA) axis.
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Affiliation(s)
- Benedict Herhaus
- Medical Psychology and Medical Sociology, Clinic and Policlinic for Psychosomatic Medicine and Psychotherapy, University Medicine Mainz, Mainz, Germany,
| | - Katja Petrowski
- Medical Psychology and Medical Sociology, Clinic and Policlinic for Psychosomatic Medicine and Psychotherapy, University Medicine Mainz, Mainz, Germany
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14
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Goldstein JM, Holsen L, Huang G, Hammond BD, James-Todd T, Cherkerzian S, Hale TM, Handa RJ. Prenatal stress-immune programming of sex differences in comorbidity of depression and obesity/metabolic syndrome. DIALOGUES IN CLINICAL NEUROSCIENCE 2017. [PMID: 28179814 PMCID: PMC5286728 DOI: 10.31887/dcns.2016.18.4/jgoldstein] [Citation(s) in RCA: 46] [Impact Index Per Article: 6.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Indexed: 11/26/2022]
Abstract
Major depressive disorder (MDD) is the number one cause of disability worldwide and is comorbid with many chronic diseases, including obesity/metabolic syndrome (MetS). Women have twice as much risk for MDD and comorbidity with obesity/MetS as men, although pathways for understanding this association remain unclear. On the basis of clinical and preclinical studies, we argue that prenatal maternal stress (ie, excess glucocorticoid expression and associated immune responses) that occurs during the sexual differentiation of the fetal brain has sex-dependent effects on brain development within highly sexually dimorphic regions that regulate mood, stress, metabolic function, the autonomic nervous system, and the vasculature. Furthermore, these effects have lifelong consequences for shared sex-dependent risk of MDD and obesity/MetS. Thus, we propose that there are shared biologic substrates at the anatomical, molecular, and/or genetic levels that produce the comorbid risk for MDD-MetS through sex-dependent fetal origins.
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Affiliation(s)
- Jill M Goldstein
- Connors Center for Women's Health and Gender Biology, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA; Departments of Psychiatry and Medicine, Harvard Medical School, Boston, Massachusetts, USA
| | - Laura Holsen
- Connors Center for Women's Health and Gender Biology, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA; Departments of Psychiatry and Medicine, Harvard Medical School, Boston, Massachusetts, USA
| | - Grace Huang
- Division of Endocrinology, Department of Medicine, Brigham and Women's Hospital, Boston, Massachusetts, USA
| | - Bradley D Hammond
- Department of Basic Medical Sciences, University of Arizona College of Medicine-Phoenix, Phoenix, Arizona, USA; Department of Biomedical Sciences, Colorado State University, Fort Collins, Colorado, USA
| | - Tamarra James-Todd
- Connors Center for Women's Health and Gender Biology, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA; Department of Epidemiology, Harvard T. H. Chan School of Public Health, Boston, Massachusetts, USA
| | - Sara Cherkerzian
- Connors Center for Women's Health and Gender Biology, Department of Medicine, Brigham and Women's Hospital, Harvard Medical School, Boston, Massachusetts, USA; Departments of Psychiatry and Medicine, Harvard Medical School, Boston, Massachusetts, USA
| | - Taben M Hale
- Department of Basic Medical Sciences, University of Arizona College of Medicine-Phoenix, Phoenix, Arizona, USA
| | - Robert J Handa
- Department of Basic Medical Sciences, University of Arizona College of Medicine-Phoenix, Phoenix, Arizona, USA; Department of Biomedical Sciences, Colorado State University, Fort Collins, Colorado, USA
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15
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Role of addiction and stress neurobiology on food intake and obesity. Biol Psychol 2017; 131:5-13. [PMID: 28479142 DOI: 10.1016/j.biopsycho.2017.05.001] [Citation(s) in RCA: 93] [Impact Index Per Article: 13.3] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 12/09/2016] [Revised: 02/20/2017] [Accepted: 05/01/2017] [Indexed: 02/07/2023]
Abstract
The US remains at the forefront of a global obesity epidemic with a significant negative impact on public health. While it is well known that a balance between energy intake and expenditure is homeostatically regulated to control weight, growing evidence points to multifactorial social, neurobehavioral and metabolic determinants of food intake that influence obesity risk. This review presents factors such as the ubiquitous presence of rewarding foods in the environment and increased salience of such foods that stimulate brain reward motivation and stress circuits to influence eating behaviors. These rewarding foods via conditioned and reinforcing effects stimulate not only metabolic, but also stress hormones, that, in turn, hijack the brain emotional (limbic) and motivational (striatal) pathways, to promote food craving and excessive food intake. Furthermore, the impact of high levels of stress and trauma and altered metabolic environment (e.g. higher weight, altered insulin sensitivity) on prefrontal cortical self-control processes that regulate emotional, motivational and visceral homeostatic mechanisms of food intake and obesity risk are also discussed. A heuristic framework is presented in which the interactive dynamic effects of neurobehavioral adaptations in metabolic, motivation and stress neurobiology may further support food craving, excessive food intake and weight gain in a complex feed-forward manner. Implications of such adaptations in brain addictive-motivational and stress pathways and their effects on excessive food intake and weight gain are discussed to highlight key questions that requires future research attention in order to better understand and address the growing obesity epidemic.
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16
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Nguyen AT, Tsai CL, Hwang LY, Lai D, Markham C, Patel B. Obesity and Mortality, Length of Stay and Hospital Cost among Patients with Sepsis: A Nationwide Inpatient Retrospective Cohort Study. PLoS One 2016; 11:e0154599. [PMID: 27124716 PMCID: PMC4849780 DOI: 10.1371/journal.pone.0154599] [Citation(s) in RCA: 42] [Impact Index Per Article: 5.3] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/05/2015] [Accepted: 04/17/2016] [Indexed: 12/19/2022] Open
Abstract
OBJECTIVES The objective of this study was to examine the association between obesity and all-cause mortality, length of stay and hospital cost among patients with sepsis 20 years of age or older. MATERIALS AND METHODS It was a retrospective cohort study. The dataset was the Nationwide Inpatient Sample 2011, the largest publicly available all-payer inpatient care database in the United States. Hospitalizations of sepsis patients 20 years of age or older were included. All 25 primary and secondary diagnosis fields were screened to identify patients with sepsis using International Classification of Diseases, Ninth Revision, Clinical Modification codes. Obesity was the exposure of interest. It was one of the 29 standardized Elixhauser comorbidity measures and readily available in the dataset as a dichotomized variable. The outcome measures were all-cause in-hospital death, length of stay and hospital cost. RESULTS After weighting, our sample projected to a population size of 1,763,000, providing an approximation for the number of hospital discharges of all sepsis patients 20 years of age or older in the US in 2011. The overall all-cause mortality rate was 14.8%, the median hospital length of stay was 7 days and the median hospital cost was $15,917. After adjustment, the all-cause mortality was lower (adjusted OR = 0.84; 95% CI = 0.81 to 0.88); the average hospital length of stay was longer (adjusted difference = 0.65 day; 95% CI = 0.44 to 0.86) and the hospital cost per stay was higher (adjusted difference = $2,927; 95% CI = $1,606 to $4,247) for obese sepsis patients as compared to non-obese ones. CONCLUSION With this large and nationally representative sample of over 1,000 hospitals in the US, we found that obesity was significantly associated with a 16% decrease in the odds of dying among hospitalized sepsis patients; however it was also associated with greater duration and cost of hospitalization.
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Affiliation(s)
- Anh Tuan Nguyen
- Department of General Planning, Vinmec International Hospital, Hanoi, Vietnam
- * E-mail:
| | - Chu-lin Tsai
- Department of Emergency Medicine, Massachusetts General Hospital, Harvard Medical School, Boston, Massachusetts, United States of America
| | - Lu-yu Hwang
- Department of Epidemiology, Human Genetics and Environmental Sciences, School of Public Health, University of Texas Health Science Center at Houston, Texas, United States of America
| | - Dejian Lai
- Department of Biostatistics, School of Public Health, University of Texas Health Science Center at Houston, Texas, United States of America
| | - Christine Markham
- Department of Health Promotion and Behavioral Sciences, School of Public Health, University of Texas Health Science Center at Houston, Texas, United States of America
| | - Bela Patel
- Division of Critical Care Medicine, Medical School, University of Texas Health Science Center at Houston, Texas, United States of America
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Herbison CE, Henley D, Marsh J, Atkinson H, Newnham JP, Matthews SG, Lye SJ, Pennell CE. Characterization and novel analyses of acute stress response patterns in a population-based cohort of young adults: influence of gender, smoking, and BMI. Stress 2016; 19:139-50. [PMID: 26809721 DOI: 10.3109/10253890.2016.1146672] [Citation(s) in RCA: 29] [Impact Index Per Article: 3.6] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/13/2022] Open
Abstract
Dysregulation of the biological stress response system has been implicated in the development of psychological, metabolic, and cardiovascular disease. Whilst changes in stress response are often quantified as an increase or decrease in cortisol levels, three different patterns of stress response have been reported in the literature for the Trier Social Stress Test (TSST) (reactive-responders (RR), anticipatory-responders (AR) and non-responders (NR)). However, these have never been systematically analyzed in a large population-based cohort. The aims of this study were to examine factors that contribute to TSST variation (gender, oral contraceptive use, menstrual cycle phase, smoking, and BMI) using traditional methods and novel analyses of stress response patterns. We analyzed the acute stress response of 798, 18-year-old participants from a community-based cohort using the TSST. Plasma adrenocorticotrophic hormone, plasma cortisol, and salivary cortisol levels were quantified. RR, AR, and NR patterns comprised 56.6%, 26.2%, and 17.2% of the cohort, respectively. Smokers were more likely to be NR than (RR or AR; adjusted, p < 0.05). Overweight and obese subjects were less likely to be NR than the other patterns (adjusted, p < 0.05). Males were more likely to be RR than NR (adjusted, p = 0.05). In addition, we present a novel AUC measure (AUCR), for use when the TSST baseline concentration is higher than later time points. These results show that in a young adult cohort, stress-response patterns, in addition to other parameters vary with gender, smoking, and BMI. The distribution of these patterns has the potential to vary with adult health and disease and may represent a biomarker for future investigation.
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Affiliation(s)
- Carly E Herbison
- a School of Women's and Infants' Health, The University of Western Australia , Perth , WA , Australia
| | - David Henley
- b School of Medicine and Pharmacology, The University of Western Australia , Perth , WA , Australia
- c Department of Endocrinology and Diabetes , Sir Charles Gairdner Hospital , Perth , WA , Australia
| | - Julie Marsh
- a School of Women's and Infants' Health, The University of Western Australia , Perth , WA , Australia
| | - Helen Atkinson
- a School of Women's and Infants' Health, The University of Western Australia , Perth , WA , Australia
| | - John P Newnham
- a School of Women's and Infants' Health, The University of Western Australia , Perth , WA , Australia
| | - Stephen G Matthews
- d Department of Physiology , Department of Obstetrics and Gynecology & Department of Medicine, University of Toronto , Toronto , ON , Canada , and
| | - Stephen J Lye
- e Mount Sinai Hospital, The Lunenfeld-Tanenbaum Research Institute , Toronto , ON , Canada
| | - Craig E Pennell
- a School of Women's and Infants' Health, The University of Western Australia , Perth , WA , Australia
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18
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Caslin HL, Franco RL, Crabb EB, Huang CJ, Bowen MK, Acevedo EO. The effect of obesity on inflammatory cytokine and leptin production following acute mental stress. Psychophysiology 2015; 53:151-8. [DOI: 10.1111/psyp.12568] [Citation(s) in RCA: 13] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/27/2015] [Accepted: 09/14/2015] [Indexed: 12/11/2022]
Affiliation(s)
- H. L. Caslin
- Department of Kinesiology and Health Sciences; College of Humanities and Sciences, Virginia Commonwealth University; Richmond Virginia USA
| | - R. L. Franco
- Department of Kinesiology and Health Sciences; College of Humanities and Sciences, Virginia Commonwealth University; Richmond Virginia USA
| | - E. B. Crabb
- Department of Kinesiology and Health Sciences; College of Humanities and Sciences, Virginia Commonwealth University; Richmond Virginia USA
| | - C. J. Huang
- Department of Exercise Science and Health Promotion; School of Education, Florida Atlantic University; Boca Raton Florida USA
| | - M. K. Bowen
- Department of Kinesiology and Health Sciences; College of Humanities and Sciences, Virginia Commonwealth University; Richmond Virginia USA
| | - E. O. Acevedo
- Department of Kinesiology and Health Sciences; College of Humanities and Sciences, Virginia Commonwealth University; Richmond Virginia USA
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19
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Huang CJ, Stewart JK, Shibata Y, Slusher AL, Acevedo EO. Lipopolysaccharide-binding protein and leptin are associated with stress-induced interleukin-6 cytokine expression ex vivo in obesity. Psychophysiology 2014; 52:687-94. [PMID: 25424507 DOI: 10.1111/psyp.12387] [Citation(s) in RCA: 5] [Impact Index Per Article: 0.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 07/20/2014] [Accepted: 10/25/2014] [Indexed: 12/25/2022]
Abstract
Obesity is associated with enhanced inflammation and mental stress, but limited information has addressed the potential additive effect of psychological stress on obesity-associated inflammation. This study examined whether obese subjects would elicit a greater host immune response (IL-6 mRNA and cytokine) to lipopolysaccharide (LPS) in response to mental stress. Blood samples for LPS-stimulated IL-6 mRNA and cytokine were collected prior to and following mental stress. Results showed that obese subjects elicited a greater LPS-induced IL-6 along with its mRNA expression following mental stress compared to normal-weight subjects. Stress-induced IL-6 cytokine response to LPS was correlated with the baseline levels of plasma LPS binding protein (LBP) and leptin. These findings are consistent with the idea that endogenous inflammatory agents (e.g., LBP and leptin), often elevated with obesity, enhance inflammatory responses to psychological stress.
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Affiliation(s)
- Chun-Jung Huang
- Department of Exercise Science and Health Promotion, Florida Atlantic University, Boca Raton, Florida, USA
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20
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McInnis CM, Thoma MV, Gianferante D, Hanlin L, Chen X, Breines JG, Hong S, Rohleder N. Measures of adiposity predict interleukin-6 responses to repeated psychosocial stress. Brain Behav Immun 2014; 42:33-40. [PMID: 25107874 PMCID: PMC4252374 DOI: 10.1016/j.bbi.2014.07.018] [Citation(s) in RCA: 56] [Impact Index Per Article: 5.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 05/01/2014] [Revised: 07/22/2014] [Accepted: 07/29/2014] [Indexed: 10/24/2022] Open
Abstract
OBJECTIVE Overweight and obese individuals, who comprise approximately two-thirds of the U.S. population, are at increased risk for developing a range of diseases. This increased risk may be due in part to maladaptive stress responses within this group, including heightened low-grade inflammation and HPA axis non-habituation. In this study we tested the relationship between adiposity, plasma interleukin-6 (IL-6) and HPA axis responses to repeated stress. METHODS Sixty-seven healthy participants were exposed to the Trier Social Stress Test (TSST) on two consecutive days. We collected saliva for cortisol measurements at baseline and at 1, 10, 30, 60 and 120min post-TSST, and blood for plasma IL-6 measurements at baseline and 30 and 120min post-TSST. RESULTS Stress exposure induced significant increases of cortisol and IL-6 on both days (cortisol: F=38, p<0.001; IL-6: F=90.8; p<0.001), and repeated exposure was related with cortisol habituation (F=8.2; p<0.001) and IL-6 sensitization (F=5.2; p=0.022). BMI and body fat were related with higher cortisol responses to repeated stress (BMI: beta=0.34; p=0.014; body fat: beta=0.29; p=0.045), and with higher IL-6 responses to repeated stress (BMI: beta=0.27, p=0.044; body fat: beta=0.37; p=0.006). CONCLUSIONS Taken together, individuals with higher measures of adiposity showed less efficient HPA axis habituation as well as sensitization of IL-6 responses to repeated acute stress. These findings point to maladaptive stress response patterns in overweight humans, which, through exposure to higher levels of inflammatory mediators, might partially explain diseases related with overweight and/or obesity.
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Affiliation(s)
- Christine M. McInnis
- Department of Psychology and Volen National Center for Complex Systems, Brandeis University, Waltham, MA, United States
| | - Myriam V. Thoma
- Department of Psychology and Volen National Center for Complex Systems, Brandeis University, Waltham, MA, United States
| | - Danielle Gianferante
- Department of Psychology and Volen National Center for Complex Systems, Brandeis University, Waltham, MA, United States
| | - Luke Hanlin
- Department of Psychology and Volen National Center for Complex Systems, Brandeis University, Waltham, MA, United States
| | - Xuejie Chen
- Department of Psychology and Volen National Center for Complex Systems, Brandeis University, Waltham, MA, United States
| | - Juliana G. Breines
- Department of Psychology and Volen National Center for Complex Systems, Brandeis University, Waltham, MA, United States
| | - Suzi Hong
- Department of Psychiatry, University of California San Diego, La Jolla, CA, United States
| | - Nicolas Rohleder
- Department of Psychology and Volen National Center for Complex Systems, Brandeis University, Waltham, MA, United States.
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Jayasinghe SU, Torres SJ, Nowson CA, Tilbrook AJ, Turner AI. Physiological responses to psychological stress: importance of adiposity in men aged 50-70 years. Endocr Connect 2014; 3:110-9. [PMID: 24867909 PMCID: PMC4033390 DOI: 10.1530/ec-14-0042] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 11/08/2022]
Abstract
We tested the hypothesis that overweight/obese men aged 50-70 years will have a greater salivary cortisol, salivary alpha amylase and heart rate (HR) responses to psychological stress compared with age matched lean men. Lean (BMI=20-25 kg/m(2); n=19) and overweight/obese (BMI=27-35 kg/m(2); n=17) men (50-70 years) were subjected to a well-characterised psychological stress (Trier Social Stress Test, TSST) at 1500 h. Concentrations of cortisol and alpha amylase were measured in saliva samples collected every 7-15 min from 1400 to 1700 h. HR was recorded using electrocardiogram. Body weight, BMI, percentage body fat, resting systolic and diastolic blood pressure and mean arterial pressure were significantly higher (P<0.05) in overweight/obese men compared with lean men. Both groups responded to the TSST with a substantial elevation in salivary cortisol (372%), salivary alpha amylase (123%) and HR (22%). These responses did not differ significantly between the groups (time×treatment interaction for salivary cortisol, salivary alpha amylase and HR; P=0.187, P=0.288, P=0.550, respectively). There were no significant differences between the groups for pretreatment values, peak height, difference between pretreatment values and peak height (reactivity) or area under the curve for salivary cortisol, salivary alpha amylase or HR (P>0.05 for all). The results showed that, for men with a moderate level of overweight/obesity who were otherwise healthy, the response of salivary cortisol, salivary alpha amylase and HR to acute psychological stress was not impaired.
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Affiliation(s)
- S U Jayasinghe
- Centre for Physical Activity and Nutrition ResearchSchool of Exercise and Nutrition Sciences, Deakin University, Burwood, Melbourne, Victoria 3125, AustraliaLivestock and Farming SystemsSouth Australian Research and Development Institute, University of Adelaide, Roseworthy, Adelaide, South Australia 5371, Australia
| | - S J Torres
- Centre for Physical Activity and Nutrition ResearchSchool of Exercise and Nutrition Sciences, Deakin University, Burwood, Melbourne, Victoria 3125, AustraliaLivestock and Farming SystemsSouth Australian Research and Development Institute, University of Adelaide, Roseworthy, Adelaide, South Australia 5371, Australia
| | - C A Nowson
- Centre for Physical Activity and Nutrition ResearchSchool of Exercise and Nutrition Sciences, Deakin University, Burwood, Melbourne, Victoria 3125, AustraliaLivestock and Farming SystemsSouth Australian Research and Development Institute, University of Adelaide, Roseworthy, Adelaide, South Australia 5371, Australia
| | - A J Tilbrook
- Centre for Physical Activity and Nutrition ResearchSchool of Exercise and Nutrition Sciences, Deakin University, Burwood, Melbourne, Victoria 3125, AustraliaLivestock and Farming SystemsSouth Australian Research and Development Institute, University of Adelaide, Roseworthy, Adelaide, South Australia 5371, Australia
| | - A I Turner
- Centre for Physical Activity and Nutrition ResearchSchool of Exercise and Nutrition Sciences, Deakin University, Burwood, Melbourne, Victoria 3125, AustraliaLivestock and Farming SystemsSouth Australian Research and Development Institute, University of Adelaide, Roseworthy, Adelaide, South Australia 5371, Australia
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Ruttle PL, Klein MH, Slattery MJ, Kalin NH, Armstrong JM, Essex MJ. Adolescent adrenocortical activity and adiposity: differences by sex and exposure to early maternal depression. Psychoneuroendocrinology 2014; 47:68-77. [PMID: 25001956 PMCID: PMC4106120 DOI: 10.1016/j.psyneuen.2014.04.025] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/27/2014] [Revised: 04/28/2014] [Accepted: 04/30/2014] [Indexed: 01/11/2023]
Abstract
Prior research has linked either basal cortisol levels or stress-induced cortisol responses to adiposity; however, it remains to be determined whether these distinct cortisol measures exert joint or independent effects. Further, it is unclear how they interact with individual and environmental characteristics to predict adiposity. The present study aims to address whether morning cortisol levels and cortisol responses to a psychosocial stressor independently and/or interactively influence body mass index (BMI) in 218 adolescents (117 female) participating in a longitudinal community study, and whether associations are moderated by sex and exposure to early maternal depression. Reports of maternal depressive symptoms were obtained in infancy and preschool. Salivary cortisol measures included a longitudinal morning cortisol measure comprising sampling points across ages 11, 13, 15, and 18 and measures of stress-induced cortisol responses assessed via the Trier Social Stress Test (TSST) at age 18. Lower morning cortisol and higher TSST cortisol reactivity independently predicted higher age 18 BMI. Morning cortisol also interacted with sex and exposure to early maternal depression to predict BMI. Specifically, girls exposed to lower levels of early maternal depression displayed a strong negative morning cortisol-BMI association, and girls exposed to higher levels of maternal depression demonstrated a weaker negative association. Among boys, those exposed to lower levels of maternal depression displayed no association, while those exposed to higher levels of maternal depression displayed a negative morning cortisol-BMI association. Results point to the independent, additive effects of morning and reactive cortisol in the prediction of BMI and suggest that exposure to early maternal depression may exert sexually dimorphic effects on normative cortisol-BMI associations.
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Affiliation(s)
- Paula L Ruttle
- Department of Psychiatry, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI 53719-1176, USA.
| | - Marjorie H Klein
- Department of Psychiatry, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI 53719-1176, USA
| | - Marcia J Slattery
- Department of Psychiatry, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI 53719-1176, USA
| | - Ned H Kalin
- Department of Psychiatry, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI 53719-1176, USA
| | - Jeffrey M Armstrong
- Department of Psychiatry, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI 53719-1176, USA
| | - Marilyn J Essex
- Department of Psychiatry, School of Medicine and Public Health, University of Wisconsin-Madison, Madison, WI 53719-1176, USA
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23
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Burch AE, Allen MT. Stress task specific impairments of cardiovascular functioning in obese participants. Int J Psychophysiol 2014; 94:1-8. [PMID: 25017962 DOI: 10.1016/j.ijpsycho.2014.07.002] [Citation(s) in RCA: 6] [Impact Index Per Article: 0.6] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 03/07/2014] [Revised: 07/01/2014] [Accepted: 07/02/2014] [Indexed: 11/28/2022]
Abstract
The role that excess adipose tissue plays in chronic inflammation gives rise to its importance as an independent risk factor in cardiovascular dysfunction. Operationalizing chronic stress as obesity, we sought to explore the relationship between obesity, perceived stress and cardiovascular reactivity and recovery from laboratory stressors. Cardiovascular function was assessed using blood pressure and heart rate. Two stress tasks (mental arithmetic and cold pressor) were employed to examine potential differences between type of stress and cardiovascular response. Body mass index (BMI) was able to predict dysfunction in both cardiovascular reactivity and recovery. Participants with a higher BMI exhibited blunted systolic blood pressure and heart rate reactivity to the mental arithmetic task. In contrast, BMI has an incongruent effect on blood pressure reactivity to the cold pressor task that is dependent on the level of perceived stress. This suggests that in some instances the effect of BMI on cardiovascular response to acute stress may be moderated by perceived stress. Further, we found greater adiposity was related to delayed heart rate recovery following both stress tasks.
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Affiliation(s)
- Ashley E Burch
- Department of Psychology, University of Mississippi, USA.
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Increased maternal BMI is associated with infant wheezing in early life: a prospective cohort study. J Dev Orig Health Dis 2014; 5:351-60. [PMID: 25081820 DOI: 10.1017/s2040174414000312] [Citation(s) in RCA: 14] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/07/2022]
Abstract
Rates of obesity are increasing in women of child bearing age with negative impacts on maternal and offspring health. Emerging evidence suggests in utero origins of respiratory health in offspring of obese mothers but mechanisms are unknown. Changes in maternal cortisol levels are one potential factor as cortisol levels are altered in obesity and cortisol is separately implicated in development of offspring wheeze. We aimed to assess whether increased pre-pregnancy maternal body mass index (BMI) was associated with offspring early life wheezing, and whether this was mediated by altered cortisol levels in the mother. In a prospective community-based cohort (Amsterdam Born Children and their Development cohort), women completed questionnaires during pregnancy and at 3-5 months post-delivery regarding self-history of asthma and atopy, and of wheezing of their offspring (n=4860). Pre-pregnancy BMI was recorded and serum total cortisol levels were measured in a subset of women (n=2227) at their first antenatal visit. A total of 20.2% (n=984) women were overweight or obese and 10.3% reported wheezing in their offspring. Maternal BMI was associated with offspring wheezing (1 unit (kg/m2) increase, OR: 1.03; 95% CI: 1.00-1.05), after correction for confounders. Although maternal cortisol levels were lower in overweight mothers and those with a history of asthma, maternal cortisol levels did not mediate the increased offspring wheezing. Pre-pregnancy BMI impacts on baby wheezing, which is not mediated by lower cortisol levels. As the prevalence of obesity in women of child-bearing age is increasing, further studies are needed to investigate modifiable maternal factors to avoid risk of wheezing in young children.
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Kenny R, Dinan T, Cai G, Spencer SJ. Effects of mild calorie restriction on anxiety and hypothalamic-pituitary-adrenal axis responses to stress in the male rat. Physiol Rep 2014; 2:e00265. [PMID: 24760519 PMCID: PMC4002245 DOI: 10.1002/phy2.265] [Citation(s) in RCA: 22] [Impact Index Per Article: 2.2] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/01/2023] Open
Abstract
Chronic calorie restriction (CR) is one of the few interventions to improve longevity and quality of life in a variety of species. It also reduces behavioral indices of anxiety and influences some stress hormones under basal conditions. However, it is not known how CR influences hypothalamic–pituitary–adrenal (HPA) axis function or if those on a CR diet have heightened HPA axis responses to stress. We hypothesized elevated basal glucocorticoid levels induced by CR would lead to exacerbated HPA axis responses to the psychological stress, restraint, in the male rat. We first confirmed rats fed 75% of their normal calorie intake for 3 weeks were less anxious than ad libitum‐fed (AD) rats in the elevated plus maze test for anxiety. The anxiolytic effect was mild, with only grooming significantly attenuated in the open field and no measured behavior affected in the light/dark box. Despite elevated basal glucocorticoids, CR rats had very similar hormonal and central responses to 15‐min restraint to the AD rats. Both CR and AD rats responded to restraint stress with a robust increase in glucocorticoids that was resolved by 60 min. Both groups also showed robust neuronal activation in the paraventricular nucleus of the hypothalamus and in other stress‐ and feeding‐sensitive brain regions that was not substantially affected by calorie intake. Our findings thus demonstrate chronic mild CR is subtly anxiolytic and is not likely to affect HPA axis responses to psychological stress. These findings support research suggesting a beneficial effect of mild CR.
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Affiliation(s)
- Rachel Kenny
- School of Health Sciences and Health Innovations Research Institute (HIRi), RMIT University, Melbourne, Vic., Australia
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Torres SJ, Turner AI, Jayasinghe SU, Reynolds J, Nowson CA. The effect of overweight/obesity on cardiovascular responses to acute psychological stress in men aged 50-70 years. Obes Facts 2014; 7:339-50. [PMID: 25428119 PMCID: PMC5644823 DOI: 10.1159/000369854] [Citation(s) in RCA: 12] [Impact Index Per Article: 1.2] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Download PDF] [Figures] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/14/2014] [Accepted: 09/11/2014] [Indexed: 01/31/2023] Open
Abstract
BACKGROUND To determine the effect of adiposity in males aged 50-70 years on cardiovascular responses to acute psychological stress. METHODS Lean (BMI 20-25 kg/m(2)) (n = 21) and overweight/obese (BMI 27-35 kg/m(2)) (n = 21) men aged 50-70 years were subjected to psychological stress. Systolic blood pressure, diastolic blood pressure, heart rate, total peripheral resistance, and cardiac output were measured by a Finometer during resting (60 min), stress (30 min), and recovery (90 min). RESULTS The lean group had a significantly higher SBP stress reactivity when compared to the overweight/obese group (51.5 ± 3.7% vs. 41.0 ± 2.9% (mean ± SEM) ; p < 0.05). A significant effect of time was observed for systolic blood pressure, diastolic blood pressure, heart rate, total peripheral resistance, and cardiac output (p < 0.0001 for all). There were significant time × body type interactions for systolic blood pressure, diastolic blood pressure, heart rate, total peripheral resistance, and cardiac output (p < 0.05 for all). Total peripheral resistance during recovery was higher in the lean compared to the overweight/obese group (p < 0.05). In the lean group, systolic and diastolic blood pressure variability remained elevated after stress (p < 0.05) but returned to resting levels in the overweight/obese group (p > 0.05). CONCLUSION Moderate adiposity in men was associated with reduced systolic blood pressure % reactivity, total peripheral resistance, and blood pressure variability after psychological stress. Overweight/obese men appear to be at no greater risk of unfavorable cardiovascular responses to stress.
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Affiliation(s)
- Susan J. Torres
- Centre for Physical Activity and Nutrition Research, School of Exercise and Nutrition Sciences, Deakin University, Burwood, Victoria, Australia
- *Dr. Susan Torres, Centre for Physical Activity and Nutrition Research, School of Exercise and Nutrition Sciences, Deakin University, 221 Burwood Highway, Burwood, 3125 (Australia),
| | - Anne I. Turner
- Centre for Physical Activity and Nutrition Research, School of Exercise and Nutrition Sciences, Deakin University, Burwood, Victoria, Australia
| | - Sisitha U. Jayasinghe
- Centre for Physical Activity and Nutrition Research, School of Exercise and Nutrition Sciences, Deakin University, Burwood, Victoria, Australia
| | - John Reynolds
- Biostatistics Unit, Faculty of Health, Deakin University, Burwood, Victoria, Australia
| | - Caryl A. Nowson
- Centre for Physical Activity and Nutrition Research, School of Exercise and Nutrition Sciences, Deakin University, Burwood, Victoria, Australia
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Costello EJ, Copeland WE, Shanahan L, Worthman CM, Angold A. C-reactive protein and substance use disorders in adolescence and early adulthood: a prospective analysis. Drug Alcohol Depend 2013; 133:712-7. [PMID: 24099969 PMCID: PMC4106409 DOI: 10.1016/j.drugalcdep.2013.08.027] [Citation(s) in RCA: 52] [Impact Index Per Article: 4.7] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 02/18/2013] [Revised: 08/23/2013] [Accepted: 08/26/2013] [Indexed: 02/06/2023]
Abstract
BACKGROUND Dysregulated immune function and elevated inflammation markers are seen in adults with chronic diseases, including some psychiatric disorders, but evidence on inflammation in the case of drug abuse is conflicting. OBJECTIVE To test the concurrent and predictive relations between C-reactive protein (CRP) and use and abuse of alcohol, nicotine and cannabis in a longitudinal, population sample of adolescents and young adults, at the period of highest increase in drug use. METHODS Data from the prospective population-based Great Smoky Mountains Study (N=1420) were used, covering children in the community assessed at ages 9-16, 19, and 21. Structured interviews were used to assess substance abuse symptoms and DSM-IV substance use disorders. Bloodspots were collected at each assessment and assayed for CRP. RESULTS CRP levels were higher in the presence of nicotine, alcohol, and cannabis use and nicotine dependence. In prospective analyses, higher CRP levels predicted cannabis use and nicotine dependence, and nicotine use predicted higher CRP levels, once covariates were included in the models. Significant covariates were age, race (American Indian), and obesity. CONCLUSIONS The inter-relationship of CRP and substance abuse has implications for the later health risks associated with early drug and alcohol use and abuse.
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Affiliation(s)
| | | | - Lilly Shanahan
- University of North Carolina at Chapel Hill, Chapel Hill, NC 27514, USA
| | | | - Adrian Angold
- Duke University Medical Center, Durham, NC, 27710, USA
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Huang CJ, Zourdos MC, Jo E, Ormsbee MJ. Influence of physical activity and nutrition on obesity-related immune function. ScientificWorldJournal 2013; 2013:752071. [PMID: 24324381 PMCID: PMC3842061 DOI: 10.1155/2013/752071] [Citation(s) in RCA: 31] [Impact Index Per Article: 2.8] [Reference Citation Analysis] [Abstract] [MESH Headings] [Track Full Text] [Download PDF] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/31/2013] [Accepted: 09/19/2013] [Indexed: 12/17/2022] Open
Abstract
Research examining immune function during obesity suggests that excessive adiposity is linked to impaired immune responses leading to pathology. The deleterious effects of obesity on immunity have been associated with the systemic proinflammatory profile generated by the secretory molecules derived from adipose cells. These include inflammatory peptides, such as TNF- α , CRP, and IL-6. Consequently, obesity is now characterized as a state of chronic low-grade systemic inflammation, a condition considerably linked to the development of comorbidity. Given the critical role of adipose tissue in the inflammatory process, especially in obese individuals, it becomes an important clinical objective to identify lifestyle factors that may affect the obesity-immune system relationship. For instance, stress, physical activity, and nutrition have each shown to be a significant lifestyle factor influencing the inflammatory profile associated with the state of obesity. Therefore, the purpose of this review is to comprehensively evaluate the impact of lifestyle factors, in particular psychological stress, physical activity, and nutrition, on obesity-related immune function with specific focus on inflammation.
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Affiliation(s)
- Chun-Jung Huang
- Department of Exercise Science and Health Promotion, Florida Atlantic University, 777 Glades Road, FH11A-126B, Boca Raton, FL 33431, USA
| | - Michael C. Zourdos
- Department of Exercise Science and Health Promotion, Florida Atlantic University, 777 Glades Road, FH11A-126B, Boca Raton, FL 33431, USA
| | - Edward Jo
- Department of Kinesiology and Health Promotion, California State Polytechnic University, Pomona, Pomona, CA, USA
- Department of Nutrition, Food and Exercise Sciences, The Florida State University, Tallahassee, FL, USA
| | - Michael J. Ormsbee
- Department of Nutrition, Food and Exercise Sciences, The Florida State University, Tallahassee, FL, USA
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Miller AL, Clifford C, Sturza J, Rosenblum K, Vazquez DM, Kaciroti N, Lumeng JC. Blunted cortisol response to stress is associated with higher body mass index in low-income preschool-aged children. Psychoneuroendocrinology 2013; 38:2611-7. [PMID: 23849598 PMCID: PMC3818281 DOI: 10.1016/j.psyneuen.2013.06.014] [Citation(s) in RCA: 38] [Impact Index Per Article: 3.5] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 01/14/2013] [Revised: 05/15/2013] [Accepted: 06/07/2013] [Indexed: 11/29/2022]
Abstract
No known studies have tested the hypothesis that a blunted pattern of cortisol reactivity to stress, which is often found following exposure to chronic life stressors, is associated with a higher body mass index (BMI) in very young children. Low-income children (n=218, mean age 56.6 (range: 38.1-78.5; SD 7.0) months, 49.1% male, 56.4% white, 16.1% black, 11.5% Hispanic/Latino) participated in a series of behavioral tasks designed to elicit stress. Cortisol was sampled in saliva 5 times during the protocol, and area under the curve (AUC), representing total cortisol output during stress elicitation, was calculated. Children were weighed and height measured and body mass index (BMI) z-score was calculated. Linear regression was used to evaluate the association between cortisol AUC and BMI z-score, controlling for child age, sex, and race/ethnicity (non-Hispanic white vs. not); primary caregiver weight status (overweight, defined as BMI ≥ 25 vs. not); and family income-to-needs ratio. Mean child BMI z-score was 0.88 (SD=1.03). Mean cortisol AUC was 6.11 μg/dL/min (SD=10.44). In the fully adjusted model, for each 1-standard deviation unit decrease in cortisol AUC, the child's BMI z-score increased by 0.17 (SE 0.07) standard deviation units (p<0.02). A blunted cortisol response to stress, as is often seen following chronic stress exposure, is associated with increased BMI z-score in very young children. Further work is needed to understand how associations between stress, cortisol, and elevated body mass index may develop very early in the lifespan.
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Clarke M, Cai G, Saleh S, Buller KM, Spencer SJ. Being suckled in a large litter mitigates the effects of early-life stress on hypothalamic-pituitary-adrenal axis function in the male rat. J Neuroendocrinol 2013; 25:792-802. [PMID: 23763285 DOI: 10.1111/jne.12056] [Citation(s) in RCA: 15] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Key Words] [MESH Headings] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 03/18/2013] [Revised: 05/08/2013] [Accepted: 06/09/2013] [Indexed: 12/14/2022]
Abstract
The perinatal environment influences stress responses in the long-term, as does body composition. Male rats suckled in large litters, where they have reduced access to milk and attention from the dam, are less anxious and have attenuated hypothalamic-pituitary-adrenal (HPA) axis responses to stress compared to rats from control litters. In the present study, we investigated whether this early-life environment can also ameliorate anxiety and HPA axis function in rats prone to be stress-sensitive. We conducted these experiments in male rats from control litters (n = 12) or large litters (n = 20). Half were given 24 h of maternal separation on postnatal day 10 to induce HPA axis hyperactivity; the remainder staying undisturbed with their dam. When the rats reached adulthood, we examined behavioural indices of anxiety (elevated plus maze) and depression (Porsolt's forced swim test) under basal conditions and after 15 min of restraint stress. We also examined neuronal activation in the paraventricular nucleus of the hypothalamus (PVN) as an index of HPA axis function. Being suckled in a large litter led to a significantly attenuated PVN response to stress in adulthood. Maternal separation strongly exacerbated the stress-induced increase in PVN neuronal activation in control rats but did not affect the PVN response in large-litter rats. Immobility in the forced swim after restraint was also exacerbated in neonatally maternally separated control rats but not in those from large litters. Our findings show that being suckled in large litters mitigates the effects of early-life stress on HPA axis function and indices of depression in the rat.
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Affiliation(s)
- M Clarke
- Department of Physiology, Faculty of Medicine, Monash University, Melbourne, Victoria, Australia
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31
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Ruyak SL, Corwin E. Concept analysis: prenatal obesity, a psychoneuroimmunology perspective. Nurs Forum 2013; 48:174-84. [PMID: 23889196 DOI: 10.1111/nuf.12023] [Citation(s) in RCA: 1] [Impact Index Per Article: 0.1] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/27/2022]
Abstract
PURPOSE To analyze the concept of prenatal obesity within a psychoneuroimmunology framework. CONCLUSION By considering the psychosocial, neurological, endocrine, and immunological contributions, a psychoneuroimmunology framework maintains a holistic focus. Identifying the multidirectional mechanisms linking these systems will provide valuable insight into the mechanisms by which prenatal obesity increases the rate of adverse pregnancy outcomes. PRACTICE IMPLICATIONS Utilization of the concept of prenatal obesity within a psychoneuroimmunology framework will facilitate multidisciplinary research to identify underlying mechanisms by which prenatal obesity leads to adverse pregnancy outcomes, as well as the development of interventions to treat obesity before, during, and after pregnancy.
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Affiliation(s)
- Sharon L Ruyak
- College of Nursing, University of Colorado, Denver, Denver, CO
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Wacharasint P, Boyd JH, Russell JA, Walley KR. One size does not fit all in severe infection: obesity alters outcome, susceptibility, treatment, and inflammatory response. CRITICAL CARE : THE OFFICIAL JOURNAL OF THE CRITICAL CARE FORUM 2013; 17:R122. [PMID: 23786836 PMCID: PMC4057102 DOI: 10.1186/cc12794] [Citation(s) in RCA: 87] [Impact Index Per Article: 7.9] [Reference Citation Analysis] [Abstract] [Download PDF] [Figures] [Subscribe] [Scholar Register] [Received: 01/21/2013] [Accepted: 06/20/2013] [Indexed: 12/29/2022]
Abstract
Introduction Obesity is an increasingly common comorbidity in critically ill patients. Whether obesity alters sepsis outcome, susceptibility, treatment, and response is not completely understood. Methods We conducted a retrospective analysis comparing three group of septic shock patients based on the intervals of actual body mass index (BMI) in patients enrolled in the VASST (Vasopressin and Septic Shock Trial) cohort. Primary outcome measurement was 28-day mortality. We tested for differences in patterns of infection by comparing the primary site of infection and organism. We also compared the treatments (fluids and vasopressors) and inflammatory response, measuring adipose tissue-related cytokine concentrations (interleukin [IL]-6, monocyte chemotactic protein [MCP]-1, tumor necrosis factor [TNF]-α, and resistin) in plasma in a subset of 382 patients. Of the 778 patients in VASST, 730 patients who had body weight and height measurements were analyzed. Patients with BMI <25 kg/m2 (n = 276) were grouped as a reference and compared to 'overweight' (25< BMI <30 kg/m2, n = 209) and 'obese' (BMI >30 kg/m2, n = 245) patients. Results Obese patients had the lowest 28-day mortality followed by overweight patients while patients with BMI <25 kg/m2 had the highest mortality (p = 0.02). Compared to the patients with BMI <25 kg/m2, obese and overweight patients also had a different pattern of infection with less lung (obese 35%, overweight 45%, BMI<25 kg/m2 50%, p = 0.003) and fungal infection (obese 8.2%, overweight 11%, and BMI<25 kg/m2 15.6%, p = 0.03). Per kilogram, obese and overweight patients received less fluid during the first four days (p<0.05) and received less norepinephrine (obese 0.14, overweight 0.21, BMI <25 kg/m2 0.26 µg/kg/min, p<0.0001) and vasopressin (obese 0.28, overweight 0.36, BMI <25 kg/m2 0.43 µU/kg/min, p<0.0001) on day 1 compared to patients with BMI <25 kg/m2. Obese and overweight patients also had a lower plasma IL-6 concentration at baseline (obese 106 [IQR 34-686], overweight 190 [IQR 44-2339], BMI <25 kg/m2 235 [IQR 44-1793] pg/mL, p = 0.046). Conclusions Overall obesity was associated with improved survival in septic shock and differences in pattern of infection, fluids, and vasopressors. Importantly, the magnitude of inflammatory IL-6 response is muted in the obese.
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Nedeljkovic M, Ausfeld-Hafter B, Streitberger K, Seiler R, Wirtz PH. Taiji practice attenuates psychobiological stress reactivity--a randomized controlled trial in healthy subjects. Psychoneuroendocrinology 2012; 37:1171-80. [PMID: 22222120 DOI: 10.1016/j.psyneuen.2011.12.007] [Citation(s) in RCA: 32] [Impact Index Per Article: 2.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/04/2011] [Revised: 11/11/2011] [Accepted: 12/08/2011] [Indexed: 10/14/2022]
Abstract
BACKGROUND Stress reducing effects of Taiji, a mindful and gentle form of body movement, have been reported in previous studies, but standardized and controlled experimental studies are scarce. The present study investigates the effect of regular Taiji practice on psychobiological stress response in healthy men and women. METHODS 70 participants were randomly assigned to either Taiji classes or a waiting list. After 3 months, 26 (8 men, 18 women) persons in the Taiji group and 23 (9 men, 14 women) in the waiting control group underwent a standardized psychosocial stress test combining public speaking and mental arithmetic in front of an audience. Salivary cortisol and α-amylase, heart rate, and psychological responses to psychosocial stress were compared between the study groups. (ClinicalTrials.gov number, NCT01122706.) RESULTS Stress induced characteristic changes in all psychological and physiological measures. Compared to controls, Taiji participants exhibited a significantly lower stress reactivity of cortisol (p = .028) and heart rate (p = .028), as well as lower α-amylase levels (p = .049). They reported a lower increase in perceived stressfulness (p = .006) and maintained a higher level of calmness (p = .019) in response to psychosocial stress. CONCLUSION Our results consistently suggest that practicing Taiji attenuates psychobiological stress reactivity in healthy subjects. This may underline the role of Taiji as a useful mind-body practice for stress prevention.
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Affiliation(s)
- Marko Nedeljkovic
- University of Bern, Institute of Complementary Medicine KIKOM, Imhoof-Pavillon, Inselspital, CH-3010 Bern, Switzerland.
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Eshkevari L, Egan R, Phillips D, Tilan J, Carney E, Azzam N, Amri H, Mulroney SE. Acupuncture at ST36 prevents chronic stress-induced increases in neuropeptide Y in rat. Exp Biol Med (Maywood) 2012; 237:18-23. [DOI: 10.1258/ebm.2011.011224] [Citation(s) in RCA: 29] [Impact Index Per Article: 2.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 12/21/2022] Open
Abstract
Chronic stress, as seen in post-traumatic stress disorder, can exacerbate existing diseases. Electroacupuncture (EA) has been proposed to treat chronic stress, although information on its efficacy or mechanism(s) of action is limited. While many factors contribute to the chronic stress response, the sympathetic peptide, neuropeptide Y (NPY), has been shown to be elevated in chronic stress and is hypothesized to contribute to the physiological stress response. Our objective was to determine if EA at acupuncture point stomach 36 (ST36) is effective in mitigating cold stress-induced increase in NPY in rats. Both pretreatment and concomitant treatment with EA ST36 effectively suppressed peripheral and central NPY after 14 d of cold stress ( P < 0.05). The effect was specific, as NPY in Sham-EA rats was not different than observed in stress-only rats. Additionally, the effect of EA ST36 was long-lasting, as NPY levels remained suppressed despite early cessation of EA ST36, while exposure to cold stress was continued. In the paraventricular nucleus (PVN), it was notable that changes in NPY mirrored plasma NPY levels, and that the significant elevation in PVN Y1 receptor observed with stress was also prevented with EA ST36. The findings indicate that EA ST36 is effective in preventing one of the sympathetic pathways stimulated during chronic stress, and thus may be a useful adjunct therapy in stress-related disorders.
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Affiliation(s)
| | | | - Dylan Phillips
- Department of Human Science, School of Nursing and Health Studies
| | - Jason Tilan
- Department of Nursing,School of Nursing and Health Studies
| | | | | | - Hakima Amri
- Department of Biochemistry and Cell and Molecular Biology, Georgetown University Medical Center, Washington, DC 20007, USA
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Huang CJ, Stewart JK, Franco RL, Evans RK, Lee ZP, Cruz TD, Webb HE, Acevedo EO. LPS-stimulated tumor necrosis factor-alpha and interleukin-6 mRNA and cytokine responses following acute psychological stress. Psychoneuroendocrinology 2011; 36:1553-61. [PMID: 21600698 DOI: 10.1016/j.psyneuen.2011.04.009] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.5] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 10/25/2010] [Revised: 03/09/2011] [Accepted: 04/18/2011] [Indexed: 11/16/2022]
Abstract
The purpose of this study was to examine the effect of acute psychological stress on LPS-stimulated TNF-α and IL-6 mRNA expression. Twenty-one healthy male subjects participated in 20 min of acute stress. Blood samples for norepinephrine and LPS-stimulated TNF-α and IL-6 cytokines and mRNA were drawn prior to, immediately after and 1-h after stress. Stress-induced increases in anxiety scores, cortisol, plasma norepinephrine, and heart rate demonstrated that the experimental protocol elicited an acute stress response. LPS-stimulated TNF-α mRNA decreased significantly immediately post-stress and partially recovered at 1h post-stress, whereas LPS-stimulated IL-6 mRNA exhibited a significant change across time, with an increase immediately after stress and a decrease 1h after stress. Trends in LPS-stimulated TNF-α and IL-6 cytokine concentrations followed the patterns of mRNA expression. A negative correlation of body mass index (BMI) and percent change of LPS-stimulated TNF-α mRNA was observed immediately post-stress, and BMI positively correlated with percent change of LPS-stimulated IL-6 cytokine levels immediately following stress. These findings demonstrated that acute psychological stress affects LPS-stimulated IL-6 and TNF-α gene expression. These results also indicate that BMI may impact the effects of psychological stress on cytokine responses to immune challenge. Further examination of the effects of stress on synthesis of other cellular cytokines and investigation of the association of BMI and stress responses will provide a more clear representation of the cytokine responses to acute psychological stress. In addition, studies examining the influence of gender on the response of immune cell subsets to acute stress and the possible mediating effect of BMI are warranted.
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Affiliation(s)
- Chun-Jung Huang
- Department of Exercise Science and Health Promotion, Florida Atlantic University, Boca Raton, FL, United States.
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Abstract
Occupational stress can affect physiological and psychological homeostasis. In addition, the occupational challenges associated with firefighting and law enforcement have been linked to increased mortality ratios for ischemic heart disease when compared with other population cohorts. Laboratory studies have shown that the exacerbation of stress hormones (eg, catecholamines) following dual challenge (physical and psychological stress) may affect immune system responses, which may partially explain the link between cardiovascular disease and inflammation. Physical fitness has been shown to attenuate both cardiovascular and inflammatory cytokine responses following physical and/or psychological stress; however, criteria for safe and effective occupation-specific fitness levels have not been established. In addition, firefighters and police officers have high overweight and obesity rates, which also contribute significantly to the development of cardiovascular disease. Future investigation on the possible interaction (additive or synergistic) of obesity and psychological stress on the development of cardiovascular diseases in these professions is warranted, and a criterion for fitness level should be established for safe and effective participation in occupation-related activities.
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Affiliation(s)
- Chun-Jung Huang
- Department of Exercise Science and Health Promotion, Florida Atlantic University, Boca Raton, Florida (CJH)
- Department of Health and Human Performance, Virginia Commonwealth University, Richmond, Virginia (EOA)
| | - Edmund O. Acevedo
- Department of Exercise Science and Health Promotion, Florida Atlantic University, Boca Raton, Florida (CJH)
- Department of Health and Human Performance, Virginia Commonwealth University, Richmond, Virginia (EOA)
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Anxiety and hypothalamic-pituitary-adrenal axis responses to psychological stress are attenuated in male rats made lean by large litter rearing. Psychoneuroendocrinology 2011; 36:1080-91. [PMID: 21349647 DOI: 10.1016/j.psyneuen.2011.01.006] [Citation(s) in RCA: 21] [Impact Index Per Article: 1.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 12/07/2010] [Revised: 01/12/2011] [Accepted: 01/28/2011] [Indexed: 11/21/2022]
Abstract
An excellent strategy to treat overactive responses to stress is to exploit the body's inherent stress-inhibitory mechanisms. Stress responses are known to differ between individuals depending upon their level and distribution of adiposity and their experiences in early life. For instance, we have recently shown that female rats made obese by overfeeding during the neonatal period have exacerbated responses to psychological stress. The converse may be true for those that are underfed during this period. In this investigation we hypothesized that rats made lean by neonatal underfeeding would have reduced anxiety and attenuated hypothalamic-pituitary-adrenal (HPA) axis responses to psychological stress. Our findings show that male (but not female) rats, made smaller by being suckled in a large litter, show reduced anxiety-related behaviour compared with those from normal litters when tested in the elevated plus maze. These smaller males also have attenuated activation of the paraventricular nucleus of the hypothalamus in response to the psychological stress, restraint, and corticosterone responses to restraint that return more quickly to baseline than controls. These findings are exciting from the perspective of understanding and potentially exploiting the body's inherent stress-inhibitory mechanisms to treat overactive responses to stress. They also provide an indication that being lean may be able to ameliorate overactive stress responses. Understanding the mechanisms by which these stress responses are attenuated in lean animals will be important for future strategies to treat diseases associated with overactive HPA axes in humans.
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Abstract
Obesity is fast becoming the scourge of our time. It is one of the biggest causes of death and disease in the industrialized world, and affects as many as 32% of adults and 17% of children in the USA, considered one of the world's fattest nations. It can also cost countries billions of dollars per annum in direct and indirect care, latest estimates putting the USA bill for obesity-related costs at $147 billion in 2008. It is becoming clear that the pathophysiology of obesity is vastly more complicated than the simple equation of energy in minus energy out. A combination of genetics, sex, perinatal environment and life-style factors can influence diet and energy metabolism. In this regard, psychological stress can have significant long-term impact upon the propensity to gain and maintain weight. In this review, we will discuss the ability of psychological stress and ultimately glucocorticoids (GCs) to alter appetite regulation and metabolism. We will specifically focus on (i) GC regulation of appetite and adiposity, (ii) the apparent sexual dimorphism in stress effects on obesity and (iii) the ability of early life stress to programme obesity in the long term.
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Affiliation(s)
- Sarah J Spencer
- Department of Physiology, Faculty of Medicine, Monash UniversityMelbourne, Vic., Australia.
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39
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Waist circumference moderates the association between marital stress and C-reactive protein in middle-aged healthy women. Ann Behav Med 2011; 40:258-64. [PMID: 20658213 DOI: 10.1007/s12160-010-9211-7] [Citation(s) in RCA: 9] [Impact Index Per Article: 0.7] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 01/05/2023] Open
Abstract
The relationships among stress, obesity, and inflammation in women remain unclear. This study examined the relationships among marital stress, waist circumference, and C-reactive protein (CRP) in 201 healthy women from the Stockholm Female Coronary Risk Study. We tested whether marital stress was associated with CRP and whether this association was moderated by waist circumference. Hierarchical multiple regression revealed that after adjusting for age, occupation status, fasting glucose, apolipoprotein A1, apolipoprotein B, blood pressure, smoking, and menopausal status, marital stress was not directly associated with CRP. However, waist circumference significantly moderated the association between marital stress and CRP (p = 0.012) such that marital stress was significantly associated with higher CRP among women with larger waist circumferences but not in those with smaller waists. More obese women may be particularly vulnerable to the effects of marital stress by manifesting higher inflammation.
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Carpenter LL, Gawuga CE, Tyrka AR, Lee JK, Anderson GM, Price LH. Association between plasma IL-6 response to acute stress and early-life adversity in healthy adults. Neuropsychopharmacology 2010; 35:2617-23. [PMID: 20881945 PMCID: PMC2978751 DOI: 10.1038/npp.2010.159] [Citation(s) in RCA: 321] [Impact Index Per Article: 22.9] [Reference Citation Analysis] [Abstract] [Key Words] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Indexed: 02/07/2023]
Abstract
Increased production of peripheral cytokines and other pro-inflammatory markers has been linked to psychiatric disorders such as major depressive disorder and post-traumatic stress disorder. Recent research has pointed to early-life stress, particularly childhood maltreatment, as an independent and preventable risk factor for systemic inflammation in adulthood. Some data suggest that adults with a history of childhood maltreatment exhibit a heightened inflammatory response to acute stress challenge. To further elucidate the relationship between childhood maltreatment and pro-inflammatory cytokine production, we examined plasma IL-6 response to the Trier Social Stress Test (TSST) in 69 healthy adult subjects without depression or post-traumatic stress disorder. Serial plasma IL-6 concentrations were measured during a standardized psychosocial stressor in n=19 subjects with moderate-severe childhood maltreatment (MAL), and n=50 controls without maltreatment (CTL), as indicated by self-ratings on the childhood trauma questionnaire (CTQ). CTQ total scores were positively correlated with overall change in IL-6 response, as well as the maximum IL-6 concentration during the TSST. Greater acute IL-6 release and higher IL-6 concentrations over time were observed for the MAL group relative to the CTL group. Inflammation may be an important developmental mediator linking adverse experiences in early life to poor adult physical and mental health. The results of this preliminary study warrant further investigation in a larger sample.
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Affiliation(s)
- Linda L Carpenter
- Mood Disorders Research Program and Laboratory for Clinical Neuroscience, Butler Hospital, Providence, RI 02906, USA.
| | - Cyrena E Gawuga
- Department of Molecular Pharmacology, Physiology and Biotechnology, Brown University, Providence, RI, USA
| | - Audrey R Tyrka
- Mood Disorders Research Program and Laboratory for Clinical Neuroscience, Butler Hospital, Providence, RI, USA,Department of Psychiatry and Human Behavior, Alpert Medical School at Brown University, Providence, RI, USA
| | - Janet K Lee
- Mood Disorders Research Program and Laboratory for Clinical Neuroscience, Butler Hospital, Providence, RI, USA
| | - George M Anderson
- Child Study Center, Yale University School of Medicine, New Haven, CT, USA
| | - Lawrence H Price
- Mood Disorders Research Program and Laboratory for Clinical Neuroscience, Butler Hospital, Providence, RI, USA,Department of Psychiatry and Human Behavior, Alpert Medical School at Brown University, Providence, RI, USA
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Hamaideh SH, Al-Khateeb RY, Al-Rawashdeh AB. Overweight and obesity and their correlates among Jordanian adolescents. J Nurs Scholarsh 2010; 42:387-94. [PMID: 21091621 DOI: 10.1111/j.1547-5069.2010.01367.x] [Citation(s) in RCA: 19] [Impact Index Per Article: 1.4] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Indexed: 11/30/2022]
Abstract
PURPOSE To provide current estimates of the prevalence of overweight and obesity among Jordanian adolescents 14 to 17 years of age living in Irbid Governorate, and to determine the factors that are associated with overweight and obesity. DESIGN Descriptive correlational cross-sectional design was used. METHODS Body mass index, perceived stress, dietary habits, physical activity, and demographics of 824 Jordanian adolescents living in Irbid were measured through a multistage cluster sampling method. FINDINGS The overall prevalence of overweight and obesity was 19.1% and 6.3%, respectively. The prevalence of overweight and obesity among boys was 17.2% and 5.7%, respectively, and among girls was 21.0% and 7.0%, respectively. Both overweight and obesity rates were higher among girls. Physical activity, mother's educational level, and number of family members were negatively correlated with overweight and obesity. On the other hand, eating breakfast regularly, mother's weight, consumption of fried food, and perceived stress level were positively correlated with overweight and obesity. CONCLUSIONS Overweight and obesity are becoming a health problem among both boys and girls in Jordan. CLINICAL RELEVANCE Detecting the prevalence and the associated factors of overweight and obesity among adolescents is the first step toward proposing intervention strategies.
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Affiliation(s)
- Shaher H Hamaideh
- Community and Mental Health Nursing Department, Faculty of Nursing, The Hashemite University, Zarqa, Jordan.
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42
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Onaka T, Takayanagi Y, Leng G. Metabolic and stress-related roles of prolactin-releasing peptide. Trends Endocrinol Metab 2010; 21:287-93. [PMID: 20122847 DOI: 10.1016/j.tem.2010.01.005] [Citation(s) in RCA: 27] [Impact Index Per Article: 1.9] [Reference Citation Analysis] [Abstract] [MESH Headings] [Grants] [Track Full Text] [Journal Information] [Submit a Manuscript] [Subscribe] [Scholar Register] [Received: 09/28/2009] [Revised: 12/23/2009] [Accepted: 01/07/2010] [Indexed: 12/26/2022]
Abstract
In the modern world, improvements in human health can be offset by unhealthy lifestyle factors, including the deleterious consequences of stress and obesity. For energy homeostasis, humoral factors and neural afferents from the gastrointestinal tract, in combination with long-term nutritional signals, communicate information to the brain to regulate energy intake and expenditure. Energy homeostasis and stress interact with each other, and stress affects both food intake and energy expenditure. Prolactin-releasing peptide, synthesized in discrete neuronal populations in the hypothalamus and brainstem, plays an important role in integrating these responses. This review describes how prolactin-releasing peptide neurons receive information concerning both internal metabolic states and environmental conditions, and play a key role in energy homeostasis and stress responses.
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Affiliation(s)
- Tatsushi Onaka
- Department of Physiology, Jichi Medical University, Shimotsuke-shi, Tochigi-ken 329-0498, Japan
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43
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Brydon L. Adiposity, leptin and stress reactivity in humans. Biol Psychol 2010; 86:114-20. [PMID: 20193730 PMCID: PMC3042594 DOI: 10.1016/j.biopsycho.2010.02.010] [Citation(s) in RCA: 37] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Figures] [Journal Information] [Subscribe] [Scholar Register] [Received: 11/16/2009] [Revised: 02/15/2010] [Accepted: 02/22/2010] [Indexed: 12/18/2022]
Abstract
Evidence suggests that individuals who are more obese may be more responsive to stress. Stress activates the sympathetic nervous system (SNS) and the adipose-tissue cytokine leptin stimulates SNS activity in animals. We examined the relationship between adiposity, leptin and physiological responses to acute laboratory stress in 67 women. We predicted that individuals with greater adiposity and/or higher plasma leptin would be more stress-responsive. Adiposity was unrelated to cardiovascular or neuroendocrine stress reactivity. However, women with larger waists had greater stress-induced increases in plasma leptin and interleukin-1 receptor antagonist (IL-1Ra). Similarly, women with higher basal leptin displayed greater stress-induced increases in heart rate and plasma interleukin-6, and larger decreases in heart rate variability and cardiac pre-ejection period. Heightened cardiovascular and inflammatory stress responses are predictive of future cardiovascular risk. Our findings suggest that the cytokines leptin and IL-1Ra may play a role in the association between obesity, stress and cardiovascular health.
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Affiliation(s)
- Lena Brydon
- Psychobiology Group, Department of Epidemiology and Public Health, University College London, 1-19 Torrington Place, London WC1E 6BT, United Kingdom.
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Appelhans BM, Pagoto SL, Peters EN, Spring BJ. HPA axis response to stress predicts short-term snack intake in obese women. Appetite 2009; 54:217-20. [PMID: 19925839 DOI: 10.1016/j.appet.2009.11.005] [Citation(s) in RCA: 39] [Impact Index Per Article: 2.6] [Reference Citation Analysis] [Abstract] [Track Full Text] [Journal Information] [Subscribe] [Scholar Register] [Received: 08/20/2009] [Revised: 11/09/2009] [Accepted: 11/11/2009] [Indexed: 11/17/2022]
Abstract
Prior research has linked heightened cortisol reactivity to stress with increased food consumption. This pilot study tested corollaries of the hypothesis that cortisol stress reactivity promotes obesity. Thirty-four lean and obese women completed an acute stress task and a non-stressful control task in counterbalanced order. Contrary to expectations, higher post-stress cortisol was associated with decreased post-stress snack intake in obese women but was unrelated to snack intake in lean women. Stress also blunted an expected rise in hunger only among obese women. Findings suggest that some obese women may be more sensitive to short-term anorectic effects of HPA axis activation.
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Affiliation(s)
- Bradley M Appelhans
- Department of Preventive Medicine, Northwestern University Feinberg School of Medicine, 680 N Lake Shore Dr., Chicago, IL 60611, USA.
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