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Stress: the International Journal on the Biology of Stress

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https://www.readbyqxmd.com/read/28720027/long-term-alteration-of-the-hypothalamic-pituitary-adrenal-axis-in-children-undergoing-cardiac-surgery-in-the-first-6-months-of-life
#1
Monica McGauran, Brigid Jordan, Roseriet Beijers, Irma Janssen, Candice Franich-Ray, Carolina de Weerth, Michael Cheung
Children with congenital heart disease (CHD) have poorer neurodevelopmental and psychological outcomes. The mechanisms underlying this remain unclear. One mechanism could be that the stressful experience of cardiac surgery early in life influences long-term hypothalamic-pituitary-adrenal (HPA) axis regulation. Dysregulation of the HPA axis has been linked to poorer neurocognitive and psychological outcomes in other study populations. This case-control study aims to compare HPA-axis regulation (circadian rhythm and reactivity) using salivary cortisol in 3- to 5-year-olds with CHD who did and did not have cardiac surgery prior to 6 months of age...
July 18, 2017: Stress: the International Journal on the Biology of Stress
https://www.readbyqxmd.com/read/28617197/chronic-early-life-stress-induced-by-limited-bedding-and-nesting-lbn-material-in-rodents-critical-considerations-of-methodology-outcomes-and-translational-potential
#2
Claire-Dominique Walker, Kevin G Bath, Marian Joels, Aniko Korosi, Muriel Larauche, Paul J Lucassen, Margaret J Morris, Charlis Raineki, Tania L Roth, Regina M Sullivan, Yvette Taché, Tallie Z Baram
The immediate and long-term effects of exposure to early life stress (ELS) have been documented in humans and animal models. Even relatively brief periods of stress during the first 10 days of life in rodents can impact later behavioral regulation and the vulnerability to develop adult pathologies, in particular an impairment of cognitive functions and neurogenesis, but also modified social, emotional, and conditioned fear responses. The development of preclinical models of ELS exposure allows the examination of mechanisms and testing of therapeutic approaches that are not possible in humans...
July 12, 2017: Stress: the International Journal on the Biology of Stress
https://www.readbyqxmd.com/read/28691638/maternal-late-pregnancy-anxiety-and-stress-is-associated-with-children-s-health-a-longitudinal-study
#3
Maartje A C Zijlmans, Roseriet Beijers, Marianne J Riksen-Walraven, Carolina de Weerth
AIM: Maternal prenatal anxiety and stress (PNS) have been positively associated to physical health prob lems in offspring in the first year of life. Whether these associations are transient, persistent, or even progressive over time, is as yet unknown. The goal of this study is to investigate associations between late pregnancy PNS and child health from 18 months to age 6. METHODS: Mothers were recruited in late pregnancy, and had uncomplicated, singleton pregnancies without physical health problems...
July 9, 2017: Stress: the International Journal on the Biology of Stress
https://www.readbyqxmd.com/read/28641470/do-psychosocial-predictors-affect-the-following-days-cortisol-awakening-response-expanding-the-temporal-frame-with-which-to-explore-morning-cortisol
#4
Jeffrey Proulx, Daniel Klee, Barry S Oken
Much of the extant cortisol awakening response (CAR) literature posits that CAR is an anticipatory response to perceived demands later that same day. However, expanding and switching the temporal order of cortisol and psychosocial influences may motivate more flexible approaches to understanding the dynamic relationship between mind and body, including cumulative strain on the HPA axis. This study was novel because we used two models to explore the effects of one day's emotion regulation and cortisol levels on cortisol and CAR the following day in 100 mildly stressed adults aged 50-81 years old, which contrasts with the more common CAR-anticipatory-response design...
July 7, 2017: Stress: the International Journal on the Biology of Stress
https://www.readbyqxmd.com/read/28618917/reduced-cardiovascular-activation-following-chronic-stress-in-caregivers-of-people-with-anorexia-nervosa
#5
Ángel Romero-Martínez, Luis Moya-Albiol
Caring for offspring diagnosed with eating disorders (EDs) puts caregivers under high levels of chronic stress, which have negative consequences for their health. Unfortunately, caregivers have received little attention from mental health professionals. Chronic stress experienced by informal caregivers has been associated with the alteration of body homeostasis, and therefore, the functioning of various physiological systems. This could be the basis of health problems in informal caregivers of people with EDs...
July 3, 2017: Stress: the International Journal on the Biology of Stress
https://www.readbyqxmd.com/read/28660838/measuring-lifetime-stress-exposure-and-protective-factors-in-life-course-research-on-racial-inequality-and-birth-outcomes
#6
Jennifer Malat, Farrah Jacquez, George M Slavich
There has been a long-standing interest in better understanding how social factors contribute to racial disparities in health, including birth outcomes. A recent emphasis in this context has been on identifying the effects of stress exposure and protective factors experienced over the entire lifetime. Yet despite repeated calls for a life course approach to research on this topic, very few studies have actually assessed how stressors and protective factors occurring over women's lives relate to birth outcomes...
June 29, 2017: Stress: the International Journal on the Biology of Stress
https://www.readbyqxmd.com/read/28612641/psychosocial-correlates-of-cortisol-levels-in-fingernails-among-middle-aged-workers
#7
Shuhei Izawa, Ko Matsudaira, Keiichi Miki, Mayumi Arisaka, Masao Tsuchiya
It was recently suggested that cortisol levels in fingernails reflect cumulative hormone exposure over a relatively long period. This exploratory study cross-sectionally investigated the relationships between fingernail cortisol level and psychosocial stress in a sample of middle-aged workers (94 men and 29 women). The participants were asked to grow their fingernails for ∼2 weeks and then provide fingernail samples from every digit by using nail clippers. Further, they completed questionnaires for assessment of exposure to psychosocial stress in the past (stressful life events in the workplace in the previous year; e...
June 29, 2017: Stress: the International Journal on the Biology of Stress
https://www.readbyqxmd.com/read/28605986/perceived-stress-disturbed-sleep-and-cognitive-impairments-in-patients-with-work-related-stress-complaints-a-longitudinal-study
#8
Anita Eskildsen, Hanne Nørr Fentz, Lars Peter Andersen, Anders Degn Pedersen, Simon Bang Kristensen, Johan Hviid Andersen
Patients on sick leave due to work-related stress often present with cognitive impairments as well as sleep disturbances. The aim of this longitudinal study was to examine the role of perceived stress and sleep disturbances in the longitudinal development in cognitive impairments in a group of patients with prolonged work-related stress (N = 60) during a period of 12 months following initial professional care-seeking. Objective cognitive impairments (neuropsychological tests) were measured on two occasions - at initial professional care-seeking and at 12-month follow-up...
June 29, 2017: Stress: the International Journal on the Biology of Stress
https://www.readbyqxmd.com/read/28595479/psychobiology-of-cumulative-trauma-hair-cortisol-as-a-risk-marker-for-stress-exposure-in-women
#9
Matthew C Morris, James L Abelson, Alyssa S Mielock, Uma Rao
Childhood trauma (CT) is associated with long-lasting alterations of the hypothalamic-pituitary-adrenal (HPA) axis and elevated risk for stress exposure in adulthood. Although HPA alterations are present in the early aftermath of trauma, it remains unclear how initial HPA activity is associated with subsequent stress exposure and whether CT exposure influences the strength and direction of this association. The present study examined prospective associations between hair cortisol content (HCC) and stress exposure from baseline to 3-month follow-up in young adult women with recent (i...
June 29, 2017: Stress: the International Journal on the Biology of Stress
https://www.readbyqxmd.com/read/28554247/association-of-social-defeat-stress-induced-anhedonia-like-symptoms-with-mglur1-dependent-decrease-in-membrane-bound-ampa-glur1-in-the-mouse-ventral-midbrain
#10
Sayori Yashiro, Kenjiro Seki
Anhedonia is a core symptom of social defeat stress (SDS)-induced depression associated with the reward system. We previously reported that decreased membrane-bound AMPA-GluR1 in the reward system is associated with lipopolysaccharide-induced anhedonia-like symptoms. Since group I metabotropic glutamate receptor (mGluR) activation reduces the surface density of GluR1, we examined whether group I mGluR-dependent decrease in membrane-bound GluR1 in the reward system is involved in SDS-induced anhedonia-like symptoms...
June 29, 2017: Stress: the International Journal on the Biology of Stress
https://www.readbyqxmd.com/read/28595502/the-importance-of-trait-emotional-intelligence-and-feelings-in-the-prediction-of-perceived-and-biological-stress-in-adolescents-hierarchical-regressions-and-fsqca-models
#11
Lidón Villanueva, Inmaculada Montoya-Castilla, Vicente Prado-Gascó
The purpose of this study is to analyze the combined effects of trait emotional intelligence (EI) and feelings on healthy adolescents' stress. Identifying the extent to which adolescent stress varies with trait emotional differences and the feelings of adolescents is of considerable interest in the development of intervention programs for fostering youth well-being. To attain this goal, self-reported questionnaires (perceived stress, trait EI, and positive/negative feelings) and biological measures of stress (hair cortisol concentrations, HCC) were collected from 170 adolescents (12-14 years old)...
June 28, 2017: Stress: the International Journal on the Biology of Stress
https://www.readbyqxmd.com/read/28595512/effects-of-psychosocial-work-characteristics-on-hair-cortisol-findings-from-a-post-trial-study
#12
Raphael M Herr, Amira Barrech, Harald Gündel, Jessica Lang, Natalia Soares Quinete, Peter Angerer, Jian Li
Prolonged work stress, as indicated by the effort-reward imbalance (ERI) model, jeopardizes health. Cortisol represents a candidate mechanism connecting stress to ill health. However, previous findings appear inconclusive, and recommendations were made to assess work stress at multiple time points and also to investigate ERI (sub-)components. This study therefore examines the effects of two single time points, as well as the mean and change scores between time points of ERI and its components on hair cortisol concentration (HCC), a long-term cortisol measurement...
June 27, 2017: Stress: the International Journal on the Biology of Stress
https://www.readbyqxmd.com/read/28573944/stress-through-the-mind-of-the-beholder-preliminary-differences-in-child-and-maternal-perceptions-of-child-stress-in-relation-to-child-cortisol-and-cardiovascular-activity
#13
Maureen A Allwood, Allison E Gaffey, Chrystal Vergara-Lopez, Laura R Stroud
The present study examined associations among parent and child reports of youth's stressful life events (SLEs), perceived stress, and biological measures of stress activity (i.e. cortisol and cardiovascular activity). Examining these aspects of youth stress presents several challenges. Unlike adult studies of individual differences in which information regarding SLEs, perceptions of events, and biological activity are gathered from one individual, assessment of individual differences among children usually involves other informants (e...
June 22, 2017: Stress: the International Journal on the Biology of Stress
https://www.readbyqxmd.com/read/28554267/executive-function-and-attention-in-patients-with-stress-related-exhaustion-perceived-fatigue-and-effect-of-distraction
#14
David Krabbe, Susanne Ellbin, Michael Nilsson, Ingibjörg H Jonsdottir, Hans Samuelsson
Cognitive impairment has frequently been shown in patients who seek medical care for stress-related mental health problems. This study aims to extend the current knowledge of cognitive impairments in these patients by focusing on perceived fatigue and effects of distraction during cognitive testing. Executive function and attention were tested in a group of patients with stress-related exhaustion (n = 25) and compared with healthy controls (n = 25). Perceived fatigue was measured before, during and after the test session, and some of the tests were administered with and without standardized auditory distraction...
June 20, 2017: Stress: the International Journal on the Biology of Stress
https://www.readbyqxmd.com/read/28532277/temporal-parameters-of-post-stress-prophylactic-glucose-treatment-in-rats
#15
M A Conoscenti, E E Hart, N J Smith, T R Minor
Acute trauma can lead to life-long changes in susceptibility to psychiatric disease, such as post-traumatic stress disorder (PTSD). Rats given free access to a concentrated glucose solution for 24 h beginning immediately after trauma failed to show stress-related pathology in the learned helplessness model of PTSD and comorbid major depression. We assessed effective dosing and temporal constraints of the glucose intervention in three experiments. We exposed 120 male Sprague-Dawley rats to 100, 1 mA, 3-15 s, inescapable and unpredictable electric tail shocks (over a 110-min period) or simple restraint in the learned helplessness procedure...
June 20, 2017: Stress: the International Journal on the Biology of Stress
https://www.readbyqxmd.com/read/28539079/a-cognitive-stressor-for-event-related-potential-studies-the-portland-arithmetic-stress-task
#16
Rachel Atchley, Roger Ellingson, Daniel Klee, Tabatha Memmott, Barry Oken
In this experiment, we developed and evaluated the Portland Arithmetic Stress Task (PAST) as a cognitive stressor to evaluate acute and sustained stress reactivity for event-related potential (ERP) studies. The PAST is a titrated arithmetic task adapted from the Montreal Imaging Stress Task (MIST), with added experimental control over presentation parameters, improved and synchronized acoustic feedback and generation of timing markers needed for physiological analyzes of real-time brain activity. Thirty-one older adults (M = 60 years) completed the PAST...
June 19, 2017: Stress: the International Journal on the Biology of Stress
https://www.readbyqxmd.com/read/28610473/pituitary-adenylate-cyclase-activating-polypeptide-pacap-stress-and-sex-hormones
#17
S Bradley King, Donna J Toufexis, Sayamwong E Hammack
Stressor exposure is associated with the onset and severity of many psychopathologies that are more common in women than men. Moreover, the maladaptive expression and function of stress-related hormones have been implicated in these disorders. Evidence suggests that PACAP has a critical role in the stress circuits mediating stress-responding, and PACAP may interact with sex hormones to contribute to sex differences in stress-related disease. In this review, we describe the role of the PACAP/PAC1 system in stress biology, focusing on the role of stress-induced alterations in PACAP expression and signaling in the development of stress-induced behavioral change...
June 14, 2017: Stress: the International Journal on the Biology of Stress
https://www.readbyqxmd.com/read/28482730/buccal-telomere-length-and-its-associations-with-cortisol-heart-rate-variability-heart-rate-and-blood-pressure-responses-to-an-acute-social-evaluative-stressor-in-college-students
#18
Alex Woody, Katrina Hamilton, Irina E Livitz, Wilson S Figueroa, Peggy M Zoccola
OBJECTIVE: Understanding the relationship between stress and telomere length (a marker of cellular aging) is of great interest for reducing aging-related disease and death. One important aspect of acute stress exposure that may underlie detrimental effects on health is physiological reactivity to the stressor. METHODS: This study tested the relationship between buccal telomere length and physiological reactivity (salivary cortisol reactivity and total output, heart rate (HR) variability, blood pressure, and HR) to an acute psychosocial stressor in a sample of 77 (53% male) healthy young adults...
May 29, 2017: Stress: the International Journal on the Biology of Stress
https://www.readbyqxmd.com/read/28460556/adrenal-gland-plasticity-in-lactating-rats-and-mice-is-sufficient-to-maintain-basal-hypersecretion-of-corticosterone
#19
Clara V Perani, Dominik Langgartner, Nicole Uschold-Schmidt, Andrea M Füchsl, Inga D Neumann, Stefan O Reber, David A Slattery
Increased basal glucocorticoid secretion and a reduced glucocorticoid response during acute stress, despite only minor changes in the secretion of the major secretagogue adrenocorticotropic hormone (ACTH), have been documented in the peripartum period in several species. We recently showed that the adrenal gland, the site of glucocorticoid synthesis, undergoes substantial postpartum-associated plasticity in the rat at mid-lactation. Here, we asked the question whether adrenal changes already take place around parturition in the rat and in another species, namely the mouse...
May 19, 2017: Stress: the International Journal on the Biology of Stress
https://www.readbyqxmd.com/read/28436309/corticotropin-releasing-hormone-binding-protein-and-stress-from-invertebrates-to-humans
#20
Kyle D Ketchesin, Gwen S Stinnett, Audrey F Seasholtz
Corticotropin-releasing hormone (CRH) is a key regulator of the stress response. This peptide controls the hypothalamic-pituitary-adrenal (HPA) axis as well as a variety of behavioral and autonomic stress responses via the two CRH receptors, CRH-R1 and CRH-R2. The CRH system also includes an evolutionarily conserved CRH-binding protein (CRH-BP), a secreted glycoprotein that binds CRH with subnanomolar affinity to modulate CRH receptor activity. In this review, we discuss the current literature on CRH-BP and stress across multiple species, from insects to humans...
May 18, 2017: Stress: the International Journal on the Biology of Stress
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