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Hair cortisol

Andreas Walther, Patricia Waldvogel, Emilou Noser, Jessica Ruppen, Ulrike Ehlert
Although aging increases the risk of cognitive and socioemotional deterioration, it has also been shown to be accompanied by an increase in experienced positive emotions and a decrease in negative emotions. Steroid hormones and age-related alterations in secretion patterns have been suggested to play a crucial role in these age-related changes in emotional experience. Importantly, previous studies identified effects of neuroactive hormones on age-related alterations in emotional experience, which vary by sex and depression levels...
2017: Frontiers in Psychology
Katsuji Uetake, Shigeru Morita, Nobutada Sakagami, Kazuaki Yamamoto, Shinji Hashimura, Toshio Tanaka
We compared the hair cortisol levels of lactating dairy cows in a cold- and a warm-temperate region out of four climatic zones in Japan. We simultaneously investigated the effects of calving number, lactation period and month of hair sampling. Hair of nine Holstein lactating cows chosen from each region (i.e. 18 cows per sampling) was sampled in March, June, September and December. Number of calvings (1, 2, ≥3) and lactation duration (early: <100, middle: 101-200, and late: >201 days) were balanced between regions...
October 9, 2017: Animal Science Journal, Nihon Chikusan Gakkaihō
Michelle Bosquet Enlow, Katrina L Devick, Kelly J Brunst, Lianna R Lipton, Brent A Coull, Rosalind J Wright
Little research has examined the impact of maternal lifetime trauma exposure on infant temperament. We examined associations between maternal trauma history and infant negative affectivity and modification by prenatal cortisol exposure in a sociodemographically diverse sample of mother-infant dyads. During pregnancy, mothers completed measures of lifetime trauma exposure and current stressors. Third-trimester cortisol output was assessed from maternal hair. When infants were 6 months old, mothers completed the Infant Behavior Questionnaire-Revised...
July 2017: Infancy: the Official Journal of the International Society on Infant Studies
Karen Nieuwenhuijsen, Antonius M C Schoutens, Monique H W Frings-Dresen, Judith K Sluiter
BACKGROUND: Chronic work-related stress is quite prevalent in the working population and is in some cases accompanied by long-term sick leave. These stress complaints highly impact employees and are costly due to lost productivity and medical expenses. A new treatment platform with light therapy plus Pulsed Electro Magnetic Fields (PEMF) in combination with coaching was used to assess whether more positive effects on return to work, stress, work-related fatigue, and quality of life could be induced compared to coaching alone...
October 2, 2017: BMC Public Health
G C Miranda-de la Lama, M Rodríguez-Palomares, R G Cruz-Monterrosa, A A Rayas-Amor, R S B Pinheiro, F M Galindo, M Villarroel
Livestock transport exposes animals to a range of potential stressors that may compromise their welfare and final product quality, and those effects typically increase with the distance travelled. In North America, producers often use pot-belly vehicles for long hauls but little is known about their suitability for transporting lambs. We followed two long-distance trips using pot-belly trailers carrying 500 lambs (each) from Northern to Central Mexico in winter, to measure possible effects on animal welfare and meat quality...
September 30, 2017: Tropical Animal Health and Production
H Harb, M González-de-la-Vara, L Thalheimer, U Klein, H Renz, M Rose, J Kruse, D P Potaczek, E M J Peters
To study pathogenic stress-effects in health and disease, it is paramount to define easy access parameters for non-invasive analysis of biological change in response to stress. Hair samples successfully provide this access for the study of hypothalamus-pituitary-adrenal axis (HPA) changes. In this study, we assess the hair expression and corresponding epigenetic changes of a neurotrophin essential for autonomic nervous system function and mental health: brain derived neurotrophic factor (BDNF). In three independent studies in healthy academic volunteers (study I: German students, N=36; study II, German academic population sample, N=28; study III: Mexican students, N=115), BDNF protein expression or BDNF gene (BDNF) histone acetylation was determined...
September 8, 2017: Psychoneuroendocrinology
Siriwan Tangyuenyong, Fumio Sato, Yasuo Nambo, Harutaka Murase, Yoshiro Endo, Tomomi Tanaka, Kentaro Nagaoka, Gen Watanabe
This study aimed to compare body growth, metabolic, and reproductive hormonal changes in trained Thoroughbred yearling horses under different climate conditions with and without light supplementation (LS). Thoroughbred yearlings raised at research centers of the Japan Racing Association in Hokkaido (north) or Miyazaki (south) were divided into control and LS groups. In the LS groups, 44 colts and 47 fillies from Hokkaido and 11 colts and 11 fillies from Miyazaki were exposed to LS with an extended photoperiod of 14...
2017: Journal of Equine Science
Jonneke J Hollanders, Bibian van der Voorn, Noera Kieviet, Koert M Dolman, Yolanda De Rijke, Erica Van den Akker, Joost Rotteveel, Adriaan Honig, Martijn J Finken
BACKGROUND: Glucocorticoids (GCs) measured in neonatal hair might reflect intrauterine as well as postpartum GC regulation. We aimed to identify factors associated with neonatal hair GC levels in early life, and their correlation with maternal hair GCs. METHODS: In a single-center observational study, mother-infant pairs (n=108) admitted for >72 hours at the maternity ward of a general hospital were included. At birth and an outpatient visit (OPV, n=72, 44±11 days postpartum), maternal and neonatal hair was analyzed for cortisol and cortisone levels by LC-MS/MS...
September 27, 2017: Endocrine Connections
U Braun, G Clavadetscher, M Baumgartner, B Riond, T Binz
No abstract text is available yet for this article.
September 2017: Schweizer Archiv Für Tierheilkunde
Andrew Steptoe, Emma Easterlin, Clemens Kirschbaum
Conscientious is associated with greater longevity and other favourable health outcomes, but the processes underlying these links are poorly understood. Health behaviours such as physical activity and avoidance of smoking and excessive alcohol consumption may contribute, but direct associations with neuroendocrine and inflammatory processes may also be relevant. We tested the associations between conscientiousness and hair cortisol concentration in 2318 older men and women (mean age 66.2 years) from the English Longitudinal Study of Ageing...
September 18, 2017: Psychoneuroendocrinology
Juliette Di Francesco, Nora Navarro-Gonzalez, Katherine Wynne-Edwards, Stephanie Peacock, Lisa-Marie Leclerc, Matilde Tomaselli, Tracy Davison, Anja Carlsson, Susan Kutz
Muskoxen (Ovibos moschatus) are increasingly subject to multiple new stressors associated with unprecedented climate change and increased anthropogenic activities across much of their range. Hair may provide a measurement of stress hormones (glucocorticoids) over periods of weeks to months. We developed a reliable method to quantify cortisol in the qiviut (wooly undercoat) of muskoxen using liquid chromatography coupled to tandem mass spectrometry. We then applied this technique to determine the natural variability in qiviut cortisol levels among 150 wild muskoxen, and to assess differences between sexes, seasons and years of collection...
2017: Conservation Physiology
Elif Ozsu, Allison Bahm
BACKGROUND: Proopiomelanocortin (POMC) protein, encoded by the POMC gene, is the precursor of adrenocorticotropic hormone (ACTH) that is released from the anterior pituitary gland. Homozygous mutations in the POMC gene is associated with hyperphagia, severe and early-onset obesity, adrenal insufficiency, hypopigmentation of the skin and red hair. CASE PRESENTATION: A 9-year-old girl from a consanguineous family of Iraqi origin was diagnosed with type 1 diabetes...
October 26, 2017: Journal of Pediatric Endocrinology & Metabolism: JPEM
Ursula Pauli-Pott, Susan Schloß, Isabelle Ruhl, Nadine Skoluda, Urs M Nater, Katja Becker
OBJECTIVE: Previous studies on the association between hypothalamic-pituitary-adrenal axis (HPAA) activity and ADHD yielded inconsistent findings, particularly in younger children. This might be due to the heterogeneity of the disorder, making moderator effects of variables probable, which circumscribe more homogenous subgroups. There have been indications of moderator effects on this association by gender of child and exposure to family adversity. Moreover, difficulties in capturing long-term basal HPAA activity in younger children might have contributed to the inconsistencies...
September 5, 2017: Psychoneuroendocrinology
Emma K Grigg, Belle Marie Nibblett, James Q Robinson, Judit E Smits
Numerous studies conducted to assess welfare of domestic dogs housed in kennel facilities have reported that these dogs experience suboptimal living conditions. One important goal of improving welfare of kennelled dogs is to reduce their stress levels, and one recommended approach for improving welfare of kennelled dogs is group or social housing. The beneficial effects of management changes designed to achieve this goal should be measurable in individual animals. Stress is evident through behaviours exhibited, as well as via the concentration of cortisol, a key hormone reflecting stress...
2017: Veterinary Record Open
Josué H Rakotoniaina, Peter M Kappeler, Eva Kaesler, Anni M Hämäläinen, Clemens Kirschbaum, Cornelia Kraus
BACKGROUND: Glucocorticoid hormones are known to play a key role in mediating a cascade of physiological responses to social and ecological stressors and can therefore influence animals' behaviour and ultimately fitness. Yet, how glucocorticoid levels are associated with reproductive success or survival in a natural setting has received little empirical attention so far. Here, we examined links between survival and levels of glucocorticoid in a small, short-lived primate, the grey mouse lemur (Microcebus murinus), using for the first time an indicator of long-term stress load (hair cortisol concentration)...
September 1, 2017: BMC Ecology
Eva Montero-López, Ana Santos-Ruiz, Raquel González, Nuria Navarrete-Navarrete, Norberto Ortego-Centeno, Olga Martínez-Augustín, Manuel Rodríguez-Blázquez, María Isabel Peralta-Ramírez
Although many studies have shown that patients with autoimmune disease present a hypoactive hypothalamic-pituitary-adrenal axis (HPA), controversial results have been described. Our objective was to study HPA axis activity in women with autoimmune disease compared to healthy women. Therefore, we analyzed salivary cortisol over the course of a day, and hair cortisol concentrations from the three preceding months, from 65 women divided into two groups: healthy women (n = 30), with a mean age of 44.70 ± 11...
August 30, 2017: Stress: the International Journal on the Biology of Stress
Agnieszka Sergiel, Keith A Hobson, David M Janz, Marc Cattet, Nuria Selva, Luciene Kapronczai, Chantel Gryba, Andreas Zedrosser
The measurement of naturally occurring glucocorticoids and stable isotopes of several elements has gained importance in wildlife studies in recent decades and opened a myriad of ecological applications. Cortisol and stable isotopes equilibrate in animal tissues over periods of integration related to the growth rate of the tissue, providing information reflecting systemic cortisol secretion and dietary intake. Sample preparation shares the common step of first cleaning the sample of external contamination. However, it is not well understood how different solvents used in sample preparation affect isotopic and cortisol values, and whether it is safe to follow the same procedures for both measures to optimize analyses of the same sample...
2017: Conservation Physiology
Rafael A Caparros-Gonzalez, Borja Romero-Gonzalez, Helen Strivens-Vilchez, Raquel Gonzalez-Perez, Olga Martinez-Augustin, Maria Isabel Peralta-Ramirez
Postpartum depression affects a huge number of women and has detrimental consequences. Knowing the factors associated with postpartum depression during pregnancy can help its prevention. Although there is evidence surrounding behavioral or psychological predictors of postpartum depression, there is a lack of evidence of biological forecasters. The aim of this study was to analyze the sociodemographic, obstetric, and psychological variables along with hair cortisol levels during the first, second, and third trimesters of pregnancy that could predict postpartum depression symptoms...
2017: PloS One
Alexander Neumann, Nese Direk, Andrew A Crawford, Saira Mirza, Hieab Adams, Jennifer Bolton, Caroline Hayward, David P Strachan, Erin K Payne, Jennifer A Smith, Yuri Milaneschi, Brenda Penninx, Jouke J Hottenga, Eco de Geus, Albertine J Oldehinkel, Peter J van der Most, Yolanda de Rijke, Brian R Walker, Henning Tiemeier
Cortisol is an important stress hormone affected by a variety of biological and environmental factors, such as the circadian rhythm, exercise and psychological stress. Cortisol is mostly measured using blood or saliva samples. A number of genetic variants have been found to contribute to cortisol levels with these methods. While the effects of several specific single genetic variants is known, the joint genome-wide contribution to cortisol levels is unclear. Our aim was to estimate the amount of cortisol variance explained by common single nucleotide polymorphisms, i...
August 12, 2017: Psychoneuroendocrinology
Philip A Fisher
Both chronic and acute stressors have typically been understood to produce elevations in cortisol, as a means to maintaining homeostatic balance. In the past two decades, however, individuals experiencing high levels of chronic early adversity have been shown to manifest an alternate profile involving blunted cortisol levels. In the context of this emerging evidence, a number of questions about diminished cortisol have remained unclear. The study by White et al. (2017) is the first to measure hair cortisol concentrations in the context of adversity, and provides validation for the stability of diminished cortisol in maltreated individuals, the association between neglect and low cortisol, and a mediating role for dysregulated hypothalamic-pituitary-adrenal axis activity in the association between early maltreatment and behavioral dysregulation...
September 2017: Journal of Child Psychology and Psychiatry, and Allied Disciplines
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