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https://www.readbyqxmd.com/read/28095431/hair-measurements-of-cortisol-dhea-and-dhea-to-cortisol-ratio-as-biomarkers-of-chronic-stress-among-people-living-with-hiv-in-china-known-group-validation
#1
Shan Qiao, Xiaoming Li, Samuele Zilioli, Zheng Chen, Huihua Deng, Juxian Pan, Weigui Guo
BACKGROUND: Existing literature suggests that endocrine measures, including the steroid hormones of cortisol and Dehydroepiandrosterone (DHEA), as well as the DHEA to cortisol ratio in the human hair can be used as promising biomarkers of chronic stress among humans. However, data are limited regarding the validity of these measures as biomarkers of chronic stress among people living with HIV (PLWH), whose endocrine system or hypothalamic pituitary adrenal (HPA) axis may be affected by HIV infection and/or antiretroviral therapy (ART) medications...
2017: PloS One
https://www.readbyqxmd.com/read/28089708/hair-corticosterone-measurement-in-mouse-models-of-type-1-and-type-2-diabetes-mellitus
#2
Rebecca L Erickson, Caroline A Browne, Irwin Lucki
In diabetes, glucocorticoid secretion increases secondary to hyperglycemia and is associated with an extensive list of disease complications. Levels of cortisol in humans, or corticosterone in rodents, are usually measured as transitory biomarkers of stress in blood or saliva. Glucocorticoid concentrations accumulate in human or animal hair over weeks and could more accurately measure the cumulative stress burden of diseases like chronic diabetes. In this study, corticosterone levels were measured in hair in verified rodent models of diabetes mellitus...
January 12, 2017: Physiology & Behavior
https://www.readbyqxmd.com/read/28073090/hair-dyeing-hair-washing-and-hair-cortisol-concentrations-among-women-from-the-healthy-start-study
#3
Sheila K Kristensen, Sofus C Larsen, Nanna J Olsen, Jan Fahrenkrug, Berit L Heitmann
BACKGROUND: Hair cortisol concentration (HCC) has been suggested as a promising marker for chronic stress. However, studies investigating the influence of hair dyeing and hair washing frequency on HCC have shown inconsistent results. OBJECTIVE: To examine associations between HCC and hair dyeing status or weekly hair washing frequency among women. METHODS: This cross-sectional study was based on data from 266 mothers participating in the Healthy Start intervention study...
December 31, 2016: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/28064407/hair-cortisol-as-a-marker-of-hypothalamic-pituitary-adrenal-axis-activity-in-female-patients-with-major-depressive-disorder
#4
Ksenia Pochigaeva, Tatiana Druzhkova, Alexander Yakovlev, Mikhail Onufriev, Maria Grishkina, Aleksey Chepelev, Alla Guekht, Natalia Gulyaeva
Hair cortisol is regarded as a promising marker of hypothalamic-pituitary-adrenal axis (HPAA) activity alterations due to stress, somatic and mental health conditions. Hair cortisol was previously reported to be elevated in patients with depression, however the data related to remission and recurrent depressive episodes are different. In this study, levels of hair cortisol were assessed in female patients with major depressive disorder (MDD) and the validity of hair cortisol as a marker of HPAA activity in this condition was evaluated...
January 7, 2017: Metabolic Brain Disease
https://www.readbyqxmd.com/read/28050886/evaluation-of-cortisol-and-telomere-length-measurements-in-ethnically-diverse-women-with-breast-cancer-using-culturally-sensitive-methods
#5
Julio Ramirez, May Elmofty, Esperanza Castillo, Mindy DeRouen, Salma Shariff-Marco, Laura Allen, Scarlett Lin Gomez, Anna María Nápoles, Leticia Márquez-Magaña
The under-representation of ethnic minority participants, who are more likely to be socially disadvantaged in biomedical research, limits generalizability of results and reductions in health disparities. To facilitate investigations of how social disadvantage "gets under the skin," this pilot study evaluated low-intensity methods for collecting hair and saliva samples from multiethnic breast cancer survivors (N = 70) and analysis of biomarkers of chronic stress (cortisol levels) and biological age (telomere length)...
January 3, 2017: Journal of Community Genetics
https://www.readbyqxmd.com/read/28043344/relationships-among-temperament-acute-and-chronic-cortisol-and-testosterone-concentrations-and-breeding-soundness-during-performance-testing-of-angus-bulls
#6
S A Lockwood, H G Kattesh, J D Rhinehart, L G Strickland, P D Krawczel, J B Wilkerson, F D Kirkpatrick, A M Saxton
The aim of this study was to examine relationships among temperament, endocrinology, and reproductive parameters of bulls enrolled in an 84-day performance test. Angus bulls (n = 60) were housed in six pens grouped by age and weight. Pen scores (PS; 1 = docile to 5 = very aggressive) were assigned on Days -1, 27, 55, and 83 of the performance test. On the following day, blood and hair samples were collected, and body weight (BW) and exit velocity (EV) were recorded. Bulls were split into two categories based on; Day -1 PS (PScalm = PS 1 or 2; PSexcitable = PS 3 or 4) and Day 0 EV (EVcalm = slowest 20 bulls; EVexcitable = fastest 20 bulls)...
February 2017: Theriogenology
https://www.readbyqxmd.com/read/28009336/hypocortisolism-and-preterm-birth
#7
S D Karakash, N Tschankoshvili, J Weedon, R M Schwartz, C Kirschbaum, H Minkoff
OBJECTIVE: We sought to determine whether hypocortisolism is associated with preterm birth, using hair cortisol as a marker of long term hypothalamic-pituitary-adrenal axis activity. STUDY DESIGN: In a prospective, matched, case-control study, 29 women who had a preterm birth at 24-36w5d gestation were compared to 29 women who delivered at term, matched for maternal age, gestational age, and ethnicity. Cases' samples were collected within 72 h of preterm birth and controls at the same gestational age as the corresponding case...
2016: Journal of Neonatal-perinatal Medicine
https://www.readbyqxmd.com/read/27998757/intraindividual-stability-of-cortisol-and-cortisone-and-the-ratio-of-cortisol-to-cortisone-in-saliva-urine-and-hair
#8
Quan Zhang, Zheng Chen, Shenghuo Chen, Youyun Xu, Huihua Deng
BACKGROUND: Cortisol, cortisone and the ratio of cortisol to cortisone in saliva, urine and hair are acute, short-term and long-term biomarkers to reliably assess the activity of hypothalamic-pituitary-adrenal (HPA) axis and 11β-hydroxysteroid dehydrogenase (11β-HSD). One key issue is whether these biomarkers have intraindividual relative stability. Salivary, urinary and hair cortisol was proven to show considerable long-term intraindividual relative stability. However, currently unknown is whether cortisone and the ratio in saliva, urine and hair show intraindividual relative stability...
December 18, 2016: Steroids
https://www.readbyqxmd.com/read/27998231/hypothalamic-pituitary-axis-dysfunction-in-survivors-of-childhood-cns-tumors-importance-of-systematic-follow-up-and-early-endocrine-consultation
#9
Wassim Chemaitilly, Gregory T Armstrong, Amar Gajjar, Melissa M Hudson
The Oncology Grand Rounds series is designed to place original reports published in the Journal into clinical context. A case presentation is followed by a description of diagnostic and management challenges, a review of the relevant literature, and a summary of the authors' suggested management approaches. The goal of this series is to help readers better understand how to apply the results of key studies, including those published in Journal of Clinical Oncology, to patients seen in their own clinical practice...
December 20, 2016: Journal of Clinical Oncology: Official Journal of the American Society of Clinical Oncology
https://www.readbyqxmd.com/read/27957334/parasites-stress-and-reindeer-infection-with-abomasal-nematodes-is-not-associated-with-elevated-glucocorticoid-levels-in-hair-or-faeces
#10
A M Carlsson, G Mastromonaco, E Vandervalk, S Kutz
Stress hormones (glucocorticoids), incorporated into hair/fur and faeces, have been proposed as biomarkers of overall health in wildlife. Although such biomarkers may be helpful for wildlife conservation and management, their use has rarely been validated. There is a paucity of studies examining the variation of stress hormones in mammals and how they relate to other health measures, such as parasitism. Parasites are ubiquitous in wildlife and can influence the fitness of individual animals and populations...
2016: Conservation Physiology
https://www.readbyqxmd.com/read/27956063/associations-of-acute-and-chronic-stress-hormones-with-cognitive-functions-in-autism-spectrum-disorder
#11
Shino Ogawa, Young-A Lee, Yoshie Yamaguchi, Yuka Shibata, Yukiori Goto
Extensive studies have reported cognitive abnormalities in neurodevelopmental disorders, such as autism spectrum disorder (ASD). Another line of evidence suggests that stress also affects cognitive functions. In this study, we investigated whether there were associations between stress hormones and cognitive functions in ASD and typically developing (TD) children. Cognitive functions in ASD and TD children were evaluated with a battery of psychological tests for working memory, behavioral flexibility, and social cognition for emotional assessments of others...
December 10, 2016: Neuroscience
https://www.readbyqxmd.com/read/27940757/atypical-leydig-cell-tumor-in-children-report-of-2-cases
#12
Chiara Mameli, Giorgio Selvaggio, Chiara Cerini, Gaetano Bulfamante, Cristina Madia, Giovanna Riccipetitoni, Gian Vincenzo Zuccotti
Leydig cell tumors (LCTs) are rare cord-stromal tumors that may occur in testis or ovaries and may produce androgens or estrogens. The majority has been found in men between the ages of 20 and 60 years. Adults with androgen-secreting LCTs are usually asymptomatic; feminizing syndromes may result from the production of estradiol or the peripheral aromatization of testosterone. In children, LCTs usually present between 5 and 10 years of age with isosexual precocious pseudopuberty or gynecomastia. We report 2 cases of LCT in prepubertal boys presenting with advanced unilateral pubarche and testicular volume asymmetry...
November 2016: Pediatrics
https://www.readbyqxmd.com/read/27940099/a-novel-method-for-assessing-chronic-cortisol-concentrations-in-dogs-using-the-nail-as-a-source
#13
Z Mack, H B Fokidis
Cortisol, a glucocorticoid secreted in response to stress, is used to assess adrenal function and mental health in clinical settings. Current methods assess cortisol sources that reflect short-term secretion that can vary with current stress state. Here, we present a novel method for the extraction and quantification of cortisol from the dog nail using solid phase extraction coupled to enzyme-linked immunosorbent assay. Validation experiments demonstrated accuracy (r = 0.836, P < 0.001) precision (15.1% coefficients of variation), and repeatability (14...
November 17, 2016: Domestic Animal Endocrinology
https://www.readbyqxmd.com/read/27927261/effect-of-environmental-enrichment-and-herbal-compound-supplementation-on-physiological-stress-indicators-chromogranin-a-cortisol-and-tumour-necrosis-factor-%C3%AE-in-growing-pigs
#14
N Casal, X Manteca, D Escribano, J J Cerón, E Fàbrega
Stress response induces physiological, behavioural, immunological and biochemical changes that directly affect health and well-being. Provision of environmental enrichment and herbal compounds may reduce stress in current commercial pig husbandry systems. The aim of this study was to evaluate the effect of providing different environmental enrichment materials (EE) and a herbal compound (HC) on physiological indicators of acute and chronic stress in growing pigs (salivary cortisol and chromogranin A (CgA), hair cortisol and tumour necrosis factor-α (TNF-α))...
December 8, 2016: Animal: An International Journal of Animal Bioscience
https://www.readbyqxmd.com/read/27923182/sociodemographic-lifestyle-and-psychosocial-determinants-of-hair-cortisol-in-a-south-london-community-sample
#15
Susanne Fischer, Roman Duncko, Stephani L Hatch, Andrew Papadopoulos, Laura Goodwin, Souci Frissa, Matthew Hotopf, Anthony J Cleare
OBJECTIVE: Hypothalamic-pituitary-adrenal (HPA) measures are crucial for research into stress and stress-related disorders. Most HPA measures fluctuate depending on diurnal rhythms and state confounders. Hair cortisol concentrations (HCC) are less susceptible to such fluctuations, but less is known about trait-like confounders. Using a community sample, we tested the relationship between HCC and a range of variables including demographic variables, hair treatment, and medication, as well as psychosocial variables, namely childhood trauma, critical life events, and depressive symptoms...
November 17, 2016: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/27906547/late-diagnosis-of-pomc-deficiency-and-in-vitro-evidence-of-residual-translation-from-allele-with-c-11c-a-mutation
#16
Aleksandra S Anisimova, Petr M Rubtsov, Kseniya A Akulich, Sergey E Dmitriev, Elena Frolova, Anatoly Tiulpakov
CONTEXT: Loss-of-function mutations in the POMC gene are associated with the syndrome of adrenal insufficiency, obesity and red hair. We describe here a case of POMC deficiency, in which adrenal insufficiency was not treated until the fourth year of life. One of the disease-causative POMC mutations was characterized in vitro using a new approach. CASE DESCRIPTION: A boy presented in the first year of life with red hair, growth acceleration, moderate obesity and recurrent cholestasis, which was followed by two episodes of hypoglycemia at ages of 1...
December 1, 2016: Journal of Clinical Endocrinology and Metabolism
https://www.readbyqxmd.com/read/27894467/association-between-hair-cortisol-concentration-and-perceived-stress-in-female-methamphetamine-addicts
#17
Liuna Geng, Peng Xiang, Jin Yang, Hui Shen, Zhiqin Sang
OBJECTIVE: The present study aims to explore whether hair cortisol concentration is associated with explicit stress or implicit stress in female methamphetamine addicts. METHODS: Hair samples were collected from 51 female methamphetamine addicts from inpatient addiction treatment programs. Perceived stress was assessed by both explicit and implicit measures through the Perceived Stress Scale (PSS) and the Implicit Association Test (IAT), respectively. RESULTS: The positive relationship between hair cortisol concentration with D-scores of the IAT reached statistically significant difference...
December 2016: Journal of Psychosomatic Research
https://www.readbyqxmd.com/read/27865992/in-6-to-8-year-old-children-hair-cortisol-is-associated-with-body-mass-index-and-somatic-complaints-but-not-with-stress-health-related-quality-of-life-blood-pressure-retinal-vessel-diameters-and-cardiorespiratory-fitness
#18
Markus Gerber, Katharina Endes, Serge Brand, Christian Herrmann, Flora Colledge, Lars Donath, Oliver Faude, Uwe Pühse, Henner Hanssen, Lukas Zahner
OBJECTIVES: Hair cortisol measurement has become an increasingly accepted approach in endocrinology and biopsychology. However, while in adult research hair cortisol has been proposed as a relevant biomarker for chronic stress (and its adverse consequences), studies with children are scarce. Therefore, the goal of the present exploratory study was to examine the associations between hair cortisol concentrations (HCCs), stress, and a series of health-related outcomes in a sample of Swiss first grade schoolchildren...
November 9, 2016: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/27804039/correlation-of-emotional-labor-and-cortisol-concentration-in-hair-among-female-kindergarten-teachers
#19
Xingliang Qi, Shuang Ji, Jing Zhang, Wanyong Lu, Judith K Sluiter, Huihua Deng
OBJECTIVES: The purpose of this study was to explore whether two types of emotional labor, surface acting and deep acting, are related to hair cortisol concentration among kindergarten teachers. METHODS: Surface acting and deep acting over the last month were measured with the Chinese version of the emotional labor scale in 43 kindergarten teachers. Hair samples with 1 cm in length were cut from their posterior vertex region to represent cortisol excretion over one month...
November 1, 2016: International Archives of Occupational and Environmental Health
https://www.readbyqxmd.com/read/27801949/maternal-prenatal-stress-and-child-atopic-dermatitis-up-to-age-2-years-the-ulm-spatz-health-study
#20
Stefanie Braig, Johannes M Weiss, Tobias Stalder, Clemens Kirschbaum, Dietrich Rothenbacher, Jon Genuneit
BACKGROUND: Evidence linking maternal psychosocial stress during pregnancy to subsequent child atopic dermatitis (AD) is growing, but the definition of AD is diverse and results are inconsistent. We aimed to analyze the relationship between stress and AD using alternative measurements of stress and AD. METHODS: In the Ulm SPATZ Health Study, chronic stress and symptoms of anxiety and depression were assessed by standardized self-reported questionnaires in 934 mothers of singletons following delivery in Ulm, Germany, from 04/2012-05/2013...
November 1, 2016: Pediatric Allergy and Immunology
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