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1.
PLoS One ; 18(1): e0277990, 2023.
Artículo en Inglés | MEDLINE | ID: mdl-36598891

RESUMEN

OBJECTIVE: Autonomous Sensory Meridian Response (ASMR), the experience of a pleasant tingling on the neck and scalp, is known to be triggered by a characteristic type of videos (ASMR videos). The present study examines whether this experience is indeed specific to these ASMR videos, or whether it can also be triggered by other types of videos, e.g. walking tour videos. A further goal was to investigate differences between ASMR-responders and ASMR-non-responders regarding their ASMR sensation and to compare ASMR and walking tour videos with regard to the elicitation of positive affect and state relaxation. METHOD: Two online assessments were carried out in two different predominantly student samples, one involving ASMR videos (n = 205) and the other one walking tour videos (n = 96). In both groups, ASMR experience, positive affect and state relaxation were assessed. RESULTS: Compared to the walking tour video group, the ASMR-responders in the ASMR video group reported a pronounced ASMR sensation, higher state relaxation and higher positive affect scores. For ASMR-non-responders, lower scores in ASMR sensation, state relaxation and positive affect were revealed compared to the walking tour group. Without differentiating ASMR responder types, the ASMR group showed higher ASMR scores and lower positive affect scores compared to the walking tour group. CONCLUSIONS: Watching ASMR videos induced significantly more characteristic ASMR sensations compared to walking tour videos. Since ASMR videos typically include a simulated interaction of the video protagonist with the viewer and walking tour videos do not, the simulated interaction with the viewer might be one important factor for triggering ASMR. As the ASMR observer type (responder or non-responder) is crucial for benefitting from ASMR videos, future scientific evaluation of ASMR needs to consider this differention when evaluating effects of ASMR on mental heath associated domains.


Asunto(s)
Meridianos , Humanos , Emociones/fisiología , Relajación
2.
Front Public Health ; 10: 965262, 2022.
Artículo en Inglés | MEDLINE | ID: mdl-36148359

RESUMEN

Although wide-ranging amendments in health and safety regulations at the European and national level oblige employers to conduct psychosocial risk assessment, it is still under debate how psychosocial hazards can be properly evaluated. For psychosocial hazards, an epidemiological, risk-oriented understanding similar to physical hazards is still missing, why most existing approaches for hazard evaluation insufficiently conceive psychosocial risk as a combination of the probability of a hazard and the severity of its consequences (harm), as found in traditional risk matrix approaches (RMA). We aim to contribute to a methodological advancement in psychosocial risk assessment by adapting the RMA from physical onto psychosocial hazards. First, we compare and rate already existing procedures of psychosocial risk evaluation regarding their ability to reliably assess and prioritize risk. Second, we construct a theoretical framework that allows the risk matrix for assessing psychosocial risk. This is done by developing different categories of harm based on psychological theories of healthy work design and classifying hazards through statistical procedures. Taking methodological and theoretical considerations into account, we propose a 3 × 3 risk matrix that scales probability and severity for psychosocial risk assessment. Odds ratios between hazards and harm can be used to statistically assess psychosocial risks. This allows for both risk evaluation and prioritizing to further conduct risk-mitigation. Our contribution advances the RMA as a framework that allows for assessing the relation between psychosocial hazards and harm disregarding which theory of work stress is applied or which tool is used for hazard identification. By this, we also contribute to further possible developments in empirical research regarding how to assess the risk of workplace stress. The risk matrix can help to understand how psychosocial hazards can be evaluated and organizations can use the approach as a guidance to establish a suitable method for psychosocial risk evaluation.


Asunto(s)
Salud Laboral , Estrés Laboral , Estado de Salud , Humanos , Medición de Riesgo , Lugar de Trabajo
3.
Appl Ergon ; 95: 103434, 2021 Sep.
Artículo en Inglés | MEDLINE | ID: mdl-33932689

RESUMEN

The present article provides a systematic overview on the relationship between psychosocial work characteristics and musculoskeletal disorders, absenteeism, and workplace accidents. The study identified and reviewed the findings of 24 systematic reviews or meta-analysis and 6 longitudinal studies. Publications were systematically searched in several databases from 1966 to January 2021. To summarize the level of evidence, a best evidence synthesis was performed, and the quality of included studies was rated. High job demands, high job strain, high effort/reward-imbalance and low social support showed a strong evidence to increase the risk for musculoskeletal disorders. In addition to job demands and job strain, low perceived fairness proved to be a risk factor of absenteeism with strong evidence. Due to the small number of studies, no reliable evidence assessment for workplace accidents was possible. The summarized findings can improve risk assessment methods, by providing a systematic estimation of the potential risk severity of psychosocial work characteristics and assist practitioners in further developing the psychosocial risk assessment.


Asunto(s)
Absentismo , Enfermedades Musculoesqueléticas , Accidentes de Trabajo , Humanos , Enfermedades Musculoesqueléticas/epidemiología , Enfermedades Musculoesqueléticas/etiología , Factores de Riesgo , Estrés Psicológico , Lugar de Trabajo
4.
Front Psychol ; 11: 719, 2020.
Artículo en Inglés | MEDLINE | ID: mdl-32411045

RESUMEN

The present study examined the effects of mindfulness training on attention regulation in university students and whether the potential benefits of implementation are influenced by the yoga component of mindfulness-based interventions (MBIs) and/or by MBI homework practice. In a non-randomized trial with pre- and post-assessments, n = 180 university students were allocated to either mindfulness training (experimental groups), awareness activities (active control group), or no training (passive control group). Mindfulness was taught through two MBIs, one including yoga and the other excluding yoga. Attention regulation was operationalized via behavioral indicators, namely sustained attention, cognitive flexibility, cognitive inhibition, and data-driven information processing. With the exception of speed in a cognitive flexibility task, the results indicated no systematic or differential advantage arising from mindfulness training, with or without yoga, regarding the aspects of attention regulation. There was no consistent influence of homework quantity or quality. The implications for mindfulness training in academic contexts are discussed.

5.
Brain Behav ; 9(9): e01390, 2019 09.
Artículo en Inglés | MEDLINE | ID: mdl-31436394

RESUMEN

BACKGROUND/OBJECTIVE: The present research investigated potential effects of mindfulness training on emotion regulation and mood of future schoolteachers in a nonrandomized pre-post design, and whether these are influenced by the yoga component of mindfulness-based stress reduction (MBSR) and/or by homework practice. METHOD: N = 169 university students received either mindfulness training (experimental groups), awareness activities (active control group), or no training (passive control group), in the context of university seminars. Allocation to groups was bound by the seminar chosen by participants, and in that sense was self-selected. Mindfulness was trained in two adapted MBSR courses, one of which including yoga, and the other excluding yoga. RESULTS: Specific benefits of both mindfulness training groups were observed for emotion regulation in terms of an increase in cognitive reappraisal and a reduction in symptom-focused rumination as well as depressive mood. No benefits of mindfulness training were observed for reductions in expressive suppression, self-focused rumination, anxious, and negative mood or an increase in distraction and positive mood respectively. Mindfulness training with and without yoga was mostly equally effective. Outcomes were largely not moderated by practice quantity or quality, but reductions in depressive mood were mediated by gains in reappraisal and distraction. CONCLUSIONS: Mindfulness training can be implemented in the context of university seminars to foster advantageous emotion regulation strategies and lower depressive mood in future schoolteachers. Discontinuing yoga within mindfulness interventions does not seem to reduce training benefits.


Asunto(s)
Afecto/fisiología , Regulación Emocional/fisiología , Atención Plena/métodos , Estudiantes/psicología , Formación del Profesorado/métodos , Yoga/psicología , Adulto , Femenino , Humanos , Masculino , Estrés Psicológico/prevención & control , Estrés Psicológico/psicología , Estrés Psicológico/terapia , Estudiantes/estadística & datos numéricos , Universidades , Adulto Joven
6.
Psychoneuroendocrinology ; 105: 86-97, 2019 07.
Artículo en Inglés | MEDLINE | ID: mdl-30390966

RESUMEN

Stress is an ubiquitous phenomenon with significant impact on human physiology when it lasts too long, when it is too intense, or when it hits vulnerable individuals. Examining the mechanisms linking stress exposure with health and disease is an important endeavor in psychoneuroendocrine research. Empirical evidence so far revealed large intra- as well as inter-individual variability in hypothalamic-pituitary-adrenal (HPA) axis responses to acute psychosocial stress, showing that the HPA axis is a highly adaptive system. Thus, the characterization of intra- und inter-individual patterns of HPA axis reactivity is of high scientific interest and forms the basis on which mechanistic links between stress response (dys)regulation and health impairments can be examined. To date, basic knowledge has been, and still is, accumulated on demographic, biological (including genetic and epigenetic) factors, lifestyle behavioral variables, consumption of substances and medication, psychological and personality factors, as well as on methodological aspects. Besides this, there is also very recent progress in respect to the development of laboratory stress paradigms that can be applied in virtual reality or inside an MRI-scanner. In sum, the present review updates our current knowledge on moderating and intervening factors as sources of intra- und inter-individual variability in human cortisol stress responses and offers recommendations for future research designs.


Asunto(s)
Variación Biológica Individual , Epigénesis Genética , Hidrocortisona/metabolismo , Sistema Hipotálamo-Hipofisario , Individualidad , Estilo de Vida , Personalidad , Complicaciones del Embarazo , Estrés Psicológico , Epigénesis Genética/fisiología , Femenino , Humanos , Sistema Hipotálamo-Hipofisario/metabolismo , Sistema Hipotálamo-Hipofisario/fisiopatología , Personalidad/fisiología , Embarazo , Complicaciones del Embarazo/metabolismo , Complicaciones del Embarazo/fisiopatología , Estrés Psicológico/genética , Estrés Psicológico/metabolismo , Estrés Psicológico/fisiopatología , Estrés Psicológico/psicología
7.
Front Public Health ; 5: 210, 2017.
Artículo en Inglés | MEDLINE | ID: mdl-28861410

RESUMEN

The European steel industry's workforce is highly heterogeneous and consists of various occupational groups, presumably facing different psychosocial stressors. The few existing studies on the subject mainly focused on physical constraints of blue-collar workers, whereas the supposable psychosocial workload received only little research attention. This is remarkable considering the challenges associated with statutory required risk assessment of psychosocial hazards. Valid measures of hazard analysis must account for various stressors and reliably identify them, also between occupational groups. The present study, based on a sample of blue- and white-collar workers (N = 124) from the European steel industry, aims to provide a first insight into psychosocial stressors and strain at work in this rarely researched industrial sector. Furthermore, two well-known theoretical roadmaps in job analysis are examined regarding their utility for risk assessment in heterogeneous workforces: the German standard version of the Copenhagen Psychosocial Questionnaire (COPSOQ) and the short version of the effort-reward imbalance questionnaire. Hierarchical multiple regression analyses revealed that the COPSOQ was better suited to predict various strain indices in the present sample. Especially stressors relating to socioemotional aspects, such as work-privacy conflict, revealed a reasonable impact, indicating the need for comprehensive solutions at the organizational level instead of solutions focusing on single workplaces. To conclude, a broadly diversified and validated approach in psychosocial risk assessment is needed to adequately assess the variety of psychosocial factors at work and in different occupational groups.

8.
Front Psychol ; 7: 1037, 2016.
Artículo en Inglés | MEDLINE | ID: mdl-27462287

RESUMEN

The present paper reports a pilot study which tested cognitive effects of mindfulness practice in a theory-driven approach. Thirty-four fifth graders received either a mindfulness training which was based on the mindfulness-based stress reduction approach (experimental group), a concentration training (active control group), or no treatment (passive control group). Based on the operational definition of mindfulness by Bishop et al. (2004), effects on sustained attention, cognitive flexibility, cognitive inhibition, and data-driven as opposed to schema-based information processing were predicted. These abilities were assessed in a pre-post design by means of a vigilance test, a reversible figures test, the Wisconsin Card Sorting Test, a Stroop test, a visual search task, and a recognition task of prototypical faces. Results suggest that the mindfulness training specifically improved cognitive inhibition and data-driven information processing.

9.
Brain Behav Immun ; 54: 38-44, 2016 May.
Artículo en Inglés | MEDLINE | ID: mdl-26674997

RESUMEN

BACKGROUND: In a previous study, we found an up-regulated inflammatory monocyte gene expression profile in major depressive disorder (MDD) patients aged ⩾ 28 years and a down-regulated inflammatory gene expression profile in MDD patients aged<28 years. In the same sample of patients, we aimed to investigate immune dysregulation in the lymphocyte arm of the immune system, particularly in the context of the described monocyte (de-)activation states. METHODS: From deep frozen leukocytes, circulating percentages of monocytes, lymphocytes, B, T, and natural killer (NK) cells, and various functional subsets of T and T helper (Th) cells (Th1, Th2, Th17, and natural T regulatory cells) were measured in N=50 MDD patients and N=58 age- and gender-matched healthy controls (HC). In addition, serum levels of interleukin (IL)-6, sCD25, IL-7, IL-3, SCF, IGF-BP2, and EGF were evaluated. RESULTS: MDD patients were in general characterized by an impaired maturation of Th2 cells, Th17 cells, and NK cells and by decreased serum levels of IL-7 and sCD25. MDD patients aged ⩾ 28 years additionally exhibited decreased percentages of CD4(+)CD25(high)FoxP3(+) T regulatory cells, next to signs of the above described partial T cell defects. Natural T regulatory cells were inversely associated with the pro-inflammatory state of the monocytes (r=-.311; p=.034) that characterized this patient subgroup. CONCLUSIONS: Deficiencies of the NK and T (regulatory) cell system and inflammatory monocyte immune activation co-occur as partly interrelated phenomena within the same MDD patients.


Asunto(s)
Trastorno Depresivo Mayor/inmunología , Células Asesinas Naturales/inmunología , Monocitos/inmunología , Linfocitos T Reguladores/inmunología , Células Th17/inmunología , Células Th2/inmunología , Adulto , Estudios de Casos y Controles , Citocinas/metabolismo , Trastorno Depresivo Mayor/metabolismo , Trastorno Depresivo Mayor/patología , Femenino , Humanos , Células Asesinas Naturales/patología , Activación de Linfocitos , Masculino , Persona de Mediana Edad , Monocitos/patología , Linfocitos T Reguladores/patología , Células Th17/patología , Células Th2/patología
10.
Brain Behav Immun ; 44: 48-56, 2015 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-25150007

RESUMEN

Increased inflammatory activation might only be present in a subgroup of depressed individuals in which immune processes are especially relevant to disease development. We aimed to analyze demographic, depression, and trauma characteristics of major depressive disorder (MDD) patients with regard to inflammatory monocyte gene expression. Fifty-six naturalistically treated MDD patients (32 ± 12 years) and 57 healthy controls (HC; 31 ± 11 years) were analyzed by the Inventory of Depressive Symptomatology (IDS) and by the Childhood Trauma Questionnaire (CTQ). We determined the expression of 38 inflammatory and immune activation genes including the glucocorticoid receptor (GR)α and GRß genes in purified CD14(+) monocytes using quantitative-polymerase chain reaction (RT-qPCR). Monocyte gene expression was age-dependent, particularly in MDD patients. Increased monocyte gene expression and decreased GRα/ß ratio were only present in MDD patients aged ⩾ 28 years. Post hoc analyses of monocyte immune activation in patients <28 years showed two subgroups: a subgroup with a severe course of depression (recurrent type, onset <15 years) - additionally characterized by panic/arousal symptoms and childhood trauma - that had a monocyte gene expression similar to HC, and a second subgroup with a milder course of the disorder (73% first episode depression, onset ⩾15 years) - additionally characterized by the absence of panic symptoms - that exhibited a strongly reduced inflammatory monocyte activation compared to HC. In conclusion, monocyte immune activation was not uniformly raised in MDD patients but was increased only in patients of 28 years and older.


Asunto(s)
Trastorno Depresivo Mayor/epidemiología , Trastorno Depresivo Mayor/genética , Expresión Génica , Inflamación/genética , Monocitos/fisiología , Adulto , Factores de Edad , Trastorno Depresivo Mayor/complicaciones , Femenino , Humanos , Inflamación/complicaciones , Masculino , Persona de Mediana Edad , Receptores de Glucocorticoides/genética , Adulto Joven
11.
Appl Psychol Health Well Being ; 5(2): 171-92, 2013 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-23335326

RESUMEN

BACKGROUND: We investigated how matching and non-matching demands and resources are related to emotional exhaustion (EE) in teachers. Theoretically, we draw on the Demand-Induced Strain Compensation (DISC) model that proposes that demands, resources, and strains are multidimensional and comprise emotional, cognitive, and physical components. We first tested whether resources compensate aversive effects of demands. Second, as proposed by the triple-match principle, we tested whether interaction effects between job demands and resources are most likely if demands, resources, and outcomes relate to the same dimension. METHODS: We retrieved data from 177 school teachers; a subsample was re-examined after a time lag of about 21 month (N = 56). RESULTS: Linear regression analyses reveal concurrent and longitudinal main and interaction effects of teacher-specific emotional and cognitive job demands and resources on EE. CONCLUSION: Results support the compensation principle and triple-match principle. Therefore, the DISC model seems to provide a valuable framework for the study of interaction effects in job stress research and, in particular, for interventions to reduce job strain in teachers.


Asunto(s)
Agotamiento Profesional/psicología , Emociones , Docentes , Estrés Psicológico/psicología , Enseñanza , Carga de Trabajo/psicología , Adulto , Femenino , Humanos , Estudios Longitudinales , Masculino , Persona de Mediana Edad , Modelos Psicológicos , Instituciones Académicas , Encuestas y Cuestionarios
12.
Stress ; 16(1): 54-64, 2013 Jan.
Artículo en Inglés | MEDLINE | ID: mdl-22564145

RESUMEN

Evidence for a detrimental impact of chronic work stress on health has accumulated in epidemiological research. Recent studies indicate altered hypothalamus-pituitary-adrenal (HPA) axis regulation as a possible biological pathway underlying the link between stress and disease. However, the direction of dysregulation remains unclear, with reported HPA hyper- or hyporeactivity. To disentangle potential effects on different functional levels in the HPA axis, we examined responses using two pharmacological stimulation tests in 53 healthy teachers (31 females, 22 males; mean age: 49.3 years; age range: 30-64 years): a low-dose adrenocorticotrophic hormone (ACTH(1-24), Synacthen) test was used to assess adrenal cortex sensitivity and the combined dexamethasone-corticotropin releasing hormone (DEX-CRH) test to examine pituitary and adrenal cortex reactivity. Blood and saliva samples were collected at - 1,+15,+30,+45,+60,+90,+120 min. Emotional exhaustion (EE), the core dimension of burnout, was measured with the Maslach Burnout Inventory. Overcommitment (OC) was assessed according to Siegrist's effort-reward-imbalance model. We found a significant association between EE and higher plasma cortisol profiles after Synacthen (p = 0.045). By contrast, OC was significantly associated with attenuated ACTH (p = 0.045), plasma cortisol (p = 0.005), and salivary cortisol (p = 0.023) concentrations following DEX-CRH. Results support the notion of altered HPA axis regulation in chronically work-stressed teachers, with differential patterns of hyper- and hyporeactivity depending on individual stress condition and the tested functional level of the HPA axis.


Asunto(s)
Hormona Adrenocorticotrópica , Agotamiento Profesional/fisiopatología , Hormona Liberadora de Corticotropina , Dexametasona , Emociones/fisiología , Sistema Hipotálamo-Hipofisario/fisiopatología , Fatiga Mental/fisiopatología , Sistema Hipófiso-Suprarrenal/fisiopatología , Adulto , Agotamiento Profesional/psicología , Enfermedad Crónica , Depresión/psicología , Femenino , Alemania , Humanos , Masculino , Fatiga Mental/psicología , Persona de Mediana Edad , Pruebas Neuropsicológicas , Instituciones Académicas , Estrés Psicológico/fisiopatología , Estrés Psicológico/psicología , Enseñanza
13.
Psychoneuroendocrinology ; 38(3): 447-54, 2013 Mar.
Artículo en Inglés | MEDLINE | ID: mdl-22840287

RESUMEN

BACKGROUND: Hyperactivity of the hypothalamic-pituitary-adrenal (HPA) axis in major depression (MDD) is one of the most reliably reported neurobiological characteristics of affective disorders. Whether these alterations in HPA axis regulation are limited to the acute stage of MDD or whether they persist after recovery, remains ambiguous. A relationship between hypercortisolemia and cognitive dysfunction in acutely depressed patients has been repeatedly observed and it was also demonstrated in a number of studies that a discrete cognitive impairment often persists in the remitted state of depression. In the present study we were interested, whether these subtle impairments in cognitive functioning observed in patients recovered from depression compared to healthy control subjects are associated with HPA axis feedback sensitivity. METHODS: In 20 recovered patients and 20 matched healthy controls we assessed HPA axis feedback sensitivity with the combined dexamethasone suppression/corticotropin-releasing-hormone (DEX/CRH) challenge test. Furthermore cognitive performance was investigated with respect to the following domains: verbal memory (Auditory Verbal Learning Test, VLMT), attention and executive control (Trail Making Test, TMT-A/B) as well as verbal fluency (Controlled Oral Word Association Test, COWAT). RESULTS: Recovered patients showed a significantly poorer cognitive performance compared to healthy controls (all p<.05). With regard to HPA-axis activity, no overall difference was observed in the DEX/CRH test between recovered patients and controls. In recovered patients however, a significant association was observed between cortisol response and verbal memory (main effect VLMT trial 1-5: p=.046), attention (main effect TMT-A: p=.015) and executive functioning in terms of set shifting (interaction samples*TMT-B: p=.018). Poorer test performance was related to increased cortisol levels in response to challenge. CONCLUSIONS: The present findings suggest that patients recovered from MDD are especially vulnerable toward detrimental effects of subtle HPA axis disturbances on cognitive performance.


Asunto(s)
Trastornos del Conocimiento/psicología , Trastorno Depresivo Mayor/psicología , Hidrocortisona/sangre , Adolescente , Adulto , Estudios de Casos y Controles , Trastornos del Conocimiento/sangre , Trastornos del Conocimiento/complicaciones , Hormona Liberadora de Corticotropina , Trastorno Depresivo Mayor/sangre , Trastorno Depresivo Mayor/complicaciones , Dexametasona , Femenino , Humanos , Sistema Hipotálamo-Hipofisario/metabolismo , Masculino , Persona de Mediana Edad , Pruebas Neuropsicológicas , Pruebas de Función Adreno-Hipofisaria/métodos , Sistema Hipófiso-Suprarrenal/metabolismo
14.
Stress Health ; 29(4): 297-306, 2013 Oct.
Artículo en Inglés | MEDLINE | ID: mdl-23086898

RESUMEN

We investigate how emotional exhaustion (EE), the core component of burnout, relates to cognitive performance, job performance and health. Cognitive performance was assessed by self-rated cognitive stress symptoms, self-rated and peer-rated cognitive impairments in everyday tasks and a neuropsychological test of learning and memory (LGT-3); job performance and physical health were gauged by self-reports. Cross-sectional linear regression analyses in a sample of 100 teachers confirm that EE is negatively related to cognitive performance as assessed by self-rating and peer-rating as well as neuropsychological testing (all p < .05). Longitudinal linear regression analyses confirm similar trends (p < .10) for self-rated and peer-rated cognitive performance. Executive control deficits might explain impaired cognitive performance in EE. In longitudinal analyses, EE also significantly predicts physical health. Contrary to our expectations, EE does not affect job performance. When reversed causation is tested, none of the outcome variables at Time 1 predict EE at Time 2. This speaks against cognitive dysfunctioning serving as a vulnerability factor for exhaustion. In sum, results underpin the negative consequences of EE for cognitive performance and health, which are relevant for individuals and organizations alike. In this way, findings might contribute to the understanding of the burnout syndrome.


Asunto(s)
Agotamiento Profesional , Docentes , Fatiga Mental , Estrés Psicológico/complicaciones , Adulto , Agotamiento Profesional/diagnóstico , Agotamiento Profesional/etiología , Agotamiento Profesional/psicología , Cognición , Estudios Transversales , Femenino , Alemania , Disparidades en el Estado de Salud , Humanos , Pruebas de Inteligencia , Estudios Longitudinales , Masculino , Fatiga Mental/diagnóstico , Fatiga Mental/etiología , Fatiga Mental/psicología , Salud Mental , Persona de Mediana Edad , Pruebas Neuropsicológicas , Autoinforme , Análisis y Desempeño de Tareas
16.
Stress Health ; 29(2): 143-9, 2013 Apr.
Artículo en Inglés | MEDLINE | ID: mdl-22888074

RESUMEN

Ambulatory assessments of hypothalamus-pituitary-adrenal axis responses to acute natural stressors yield evidence on stress regulation with high ecological validity. Sampling of salivary cortisol is a standard technique in this field. In 21 healthy student teachers, we assessed cortisol responses to a demonstration lesson. On a control day, sampling was repeated at analogous times. Additionally, the cortisol awakening response (CAR) was assessed on both days. Participants were also exposed to a laboratory stressor, the Trier Social Stress Test, and rated their individual levels of chronic work stress. In pre-to-post-stress assessment, cortisol levels declined after the lesson. However, post-stress cortisol levels were significantly higher compared with those on the control day. Also, the Trier Social Stress Test yielded higher cortisol responses when using the control day as reference baseline. Associations between the CAR and chronic stress measures were observed solely on the control day. There were no significant associations between cortisol responses to the natural and laboratory stressors. Our results indicate that a control day might be an important complement in laboratory but especially in ambulatory stress research. Furthermore, associations between chronic stress measures and the CAR might be obscured by acute stress exposure. Finally, responses to the laboratory stressor do not seem to mirror natural stress responses.


Asunto(s)
Hidrocortisona/metabolismo , Proyectos de Investigación , Estrés Psicológico/metabolismo , Estudiantes/psicología , Enseñanza , Adulto , Análisis de Varianza , Agotamiento Profesional/diagnóstico , Ritmo Circadiano/fisiología , Femenino , Humanos , Sistema Hipotálamo-Hipofisario/fisiopatología , Modelos Lineales , Masculino , Monitoreo Ambulatorio/métodos , Sistema Hipófiso-Suprarrenal/fisiología , Sistema Hipófiso-Suprarrenal/fisiopatología , Valores de Referencia , Saliva/química , Estrés Psicológico/fisiopatología
17.
Biol Psychol ; 92(2): 403-9, 2013 Feb.
Artículo en Inglés | MEDLINE | ID: mdl-23246534

RESUMEN

BACKGROUND: According to the effort-reward-imbalance (ERI) model, a lack of reciprocity between costs and gains at work increases the risk for adverse health outcomes. Inflammation has been shown to play a crucial role in a variety of stress-related diseases and alterations in immune system glucocorticoid sensitivity may help to explain the increased risk for cardiovascular disease (CVD) and depression related to chronic work stress. METHODS: Changes in lipopolysaccharide (LPS)-induced interleukin (IL)-6 production and inhibition of IL-6 production by dexamethasone in reaction to the Trier Social Stress Test (TSST) were assessed in forty-six healthy school teachers to test whether chronic work stress is accompanied by alterations in inflammatory activity and glucocorticoid sensitivity of the innate immune system. RESULTS: High ERI was associated with an increase in pro-inflammatory potential, reflected in elevated IL-6 production before and after stress and with a lower capacity of dexamethasone to suppress IL-6 production in vitro over all measurement time points. ERI was not associated with stress-related changes in GC sensitivity. CONCLUSION: The present findings suggest a less effective anti-inflammatory regulation by glucocorticoids in teachers suffering from chronic work stress.


Asunto(s)
Glucocorticoides/metabolismo , Interleucina-6/metabolismo , Recompensa , Estrés Psicológico/inmunología , Estrés Psicológico/psicología , Adulto , Análisis de Varianza , Dexametasona/farmacología , Docentes , Femenino , Glucocorticoides/inmunología , Glucocorticoides/farmacología , Humanos , Leucocitos/efectos de los fármacos , Leucocitos/inmunología , Lipopolisacáridos/farmacología , Masculino , Persona de Mediana Edad , Escalas de Valoración Psiquiátrica , Estrés Psicológico/clasificación , Factores de Tiempo
18.
Psychoneuroendocrinology ; 36(6): 905-12, 2011 Jul.
Artículo en Inglés | MEDLINE | ID: mdl-21237574

RESUMEN

The cortisol awakening response (CAR) has been established as a useful marker of hypothalamus-pituitary-adrenal (HPA) axis activity and has become a standard tool for stress research in ambulatory settings. Although much knowledge has been accumulated on a variety of factors modulating the CAR, the impact of the female menstrual cycle, especially during ovulation, still remains unclear. To the best of our knowledge, this is the first study that measured the CAR during menses, the follicular phase, ovulation and the luteal phase in a repeated measurement design. For this purpose, a final sample of 29 naturally cycling, healthy, non-smoking, and medication-free women collected saliva samples directly after awakening as well as 30, 45, and 60 min later during each of the four different phases. To determine the timing of ovulation, an ambulatory chromatographic ovulation test kit was applied. A repeated measurements ANOVA resulted in a significant interaction effect sample × cycle phase (p=0.04), with the highest awakening response during ovulation. While awakening cortisol levels were comparable across the four cycle phases (p=n.s.), the net increase was significantly elevated during ovulation (p=0.05). Our data also confirmed earlier cross-sectional results reporting no differences in the CAR between the follicular and luteal phase. Finally, a concurrent assessment of mood applying the POMS (Profile of Mood States) yielded no differences across the four cycle phases (all p=n.s.). In sum, the present data points to the idea that the CAR is elevated during ovulation, an effect which is presumably mediated by elevated sex steroid levels during the ovulation period.


Asunto(s)
Ritmo Circadiano/fisiología , Hidrocortisona/metabolismo , Sistema Hipotálamo-Hipofisario/fisiología , Ciclo Menstrual/fisiología , Sistema Hipófiso-Suprarrenal/fisiología , Afecto , Emociones , Estradiol/fisiología , Femenino , Humanos , Hormona Luteinizante/orina , Ovulación/fisiología , Progesterona/fisiología , Valores de Referencia , Saliva/química , Sueño , Vigilia/fisiología
19.
Psychoneuroendocrinology ; 36(5): 699-709, 2011 Jun.
Artículo en Inglés | MEDLINE | ID: mdl-21095064

RESUMEN

Stress causes activation of the hypothalamic-pituitary-adrenal (HPA) axis, resulting in secretion of corticosteroids which facilitate behavioural adaptation. These effects exerted by corticosteroids are mediated by two brain corticosteroid receptor types, the mineralocorticoid receptor (MR), with a high affinity already occupied under basal conditions and the glucocorticoid receptor (GR), with a low affinity only activated during stress. Here, we studied MR gene haplotypes constituted by the two single nucleotide polymorphisms MR-2G/C (rs2070951) and MRI180V (rs5522). The haplotypes showed differences in cortisol-induced gene transcription and protein expression while the structural variant MRI180V did not affect ligand binding. Moreover, in a well characterized cohort of 166 school teachers these haplotypes have been associated with perceived chronic stress (Trier Inventory for the Assessment of Chronic Stress, TICS) and, in a subgroup of 47 subjects, with ACTH, cortisol and heart rate responses to acute psychosocial stress (Trier Social Stress Test, TSST). MR haplotypes were significantly associated with the TICS scales "excessive demands at work" and "social overload". Subjects homozygous for haplotype MR-2C/MRI180, which in vitro showed highest expression and transactivational activity, displayed the highest salivary cortisol (p<0.001), plasma cortisol (p=0.010), plasma ACTH (p=0.003) and heart rate (p=0.018) responses. It is concluded that the investigated MR haplotypes modulate cortisol-induced gene transcription in vitro. Moreover, these haplotypes may contribute to individual differences in perceived chronic stress as well as neuroendocrine and cardiovascular stress responses.


Asunto(s)
Receptores de Mineralocorticoides/genética , Receptores de Mineralocorticoides/metabolismo , Estrés Psicológico/genética , Estrés Psicológico/metabolismo , Adaptación Psicológica/fisiología , Adulto , Animales , Células COS , Chlorocebus aethiops , Femenino , Expresión Génica , Estudio de Asociación del Genoma Completo , Haplotipos , Humanos , Masculino , Persona de Mediana Edad , Polimorfismo de Nucleótido Simple/fisiología , Receptores de Mineralocorticoides/fisiología , Estrés Psicológico/fisiopatología , Activación Transcripcional/fisiología , Transfección , Adulto Joven
20.
Brain Behav Immun ; 24(8): 1332-9, 2010 Nov.
Artículo en Inglés | MEDLINE | ID: mdl-20599495

RESUMEN

To test whether chronic work stress is accompanied by altered immune functioning, changes in lymphocyte subsets and in lymphocyte production of cytokines were examined in reaction to acute psychosocial stress. Work stress was measured according to Siegrist's effort-reward-imbalance (ERI) model. ERI reflects stress due to a lack of reciprocity between costs and gains at work. Overcommitment (OC) is conceptualized as a dysfunctional coping pattern mainly characterized by the inability to withdraw from work obligations. Fifty-five healthy teachers (34 women, 21 men, mean age 50.0 ± 8.47 years) were exposed to a standardized laboratory stressor (Trier Social Stress Test). Lymphocyte subset counts and lymphocyte production of tumor-necrosis-factor (TNF)-α, interferon (IFN)-γ, interleukin (IL)-2, -4, -6 and -10 were measured before and after challenge. High levels of ERI and OC were associated with lower natural killer (NK) cell (CD16+/56+) numbers whereas high levels of OC were related to a lower increase in T-helper cells (CD4+) after stress. Furthermore, subjects with higher ERI showed an overall increased pro-inflammatory activity, with higher TNF-α production at both time points and elevated pre-stress IL-6 production. IL-10 production decreased with higher ERI after stress. The ratios of TNF-α/IL-10 and IL-6/IL-10 were significantly increased in subjects high on ERI. Finally, OC was associated with higher IL-2 production post-stress. The present findings suggest a dampened innate immune defence, reflected in lower NK cell numbers together with an increased pro-inflammatory activity in teachers high on ERI and OC. Such pathways could partly be responsible for the increased vulnerability for stress-related diseases in individuals suffering from chronic work stress.


Asunto(s)
Docentes , Inmunidad Innata/fisiología , Inflamación/epidemiología , Inflamación/inmunología , Estrés Psicológico/epidemiología , Estrés Psicológico/inmunología , Enseñanza , Hormona Adrenocorticotrópica/sangre , Adulto , Ansiedad/epidemiología , Ansiedad/psicología , Agotamiento Profesional/epidemiología , Agotamiento Profesional/psicología , Complejo CD3/metabolismo , Citocinas/sangre , Depresión/epidemiología , Depresión/psicología , Femenino , Humanos , Hidrocortisona/sangre , Inflamación/psicología , Satisfacción en el Trabajo , Recuento de Leucocitos , Masculino , Persona de Mediana Edad , Fitohemaglutininas/farmacología , Escalas de Valoración Psiquiátrica , Trastornos Psicofisiológicos/epidemiología , Trastornos Psicofisiológicos/psicología , Recompensa , Estrés Psicológico/psicología
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