keyword
MENU ▼
Read by QxMD icon Read
search

cortisol cycle

keyword
https://www.readbyqxmd.com/read/28073304/the-impact-of-stress-on-odor-perception
#1
Matthias Hoenen, Oliver T Wolf, Bettina M Pause
The olfactory system and emotional systems are highly intervened and share common neuronal structures. The current study investigates whether emotional (e.g., anger and fear) and physiological (saliva cortisol) stress responses are associated with odor identification ability and hedonic odor judgments (intensity, pleasantness, and unpleasantness). Nineteen men participated in the modified Trier Social Stress Test (TSST) and a control session (cycling on a stationary bike). The physiological arousal was similar in both sessions...
January 1, 2017: Perception
https://www.readbyqxmd.com/read/28064085/cortisol-awakening-response-is-blunted-and-pain-perception-is-increased-during-menses-in-cyclic-women
#2
Tuba Ozgocer, Cihat Ucar, Sedat Yildiz
BACKGROUND AND AIMS: The incidence of menstrual symptoms is reported to be as high as 90% in cyclic women. These symptoms, including anxiety and pain, might be associated with cortisol, as its receptors are widely distributed in the brain areas associated with behavior. Therefore, the current study aimed to assess the cortisol awakening response (CAR) throughout the menstrual cycle and correlate it with pain perception and trait anxiety. MATERIALS AND METHODS: CAR was assessed by measuring salivary cortisol at 0, 15, 30, and 60min following awakening in the same women (n=59, age 22...
December 21, 2016: Psychoneuroendocrinology
https://www.readbyqxmd.com/read/28057508/the-humoral-immune-system-of-anadromous-fish
#3
REVIEW
Patty Zwollo
The immune system of anadromous fish is extremely complex, a direct consequence of their diadromous nature. Hormone levels fluctuate widely throughout their life cycle, as fish move between fresh and salt water. This poses major challenges to the physiology of anadromous fish, including adaptation to very different saline environments, distinct pathogen fingerprints, and different environmental stressors. Elevated cortisol and sex hormone levels inhibit B lymphopoiesis and IgM(+) antibody responses, while catecholamines, growth hormones and thyroid hormones are generally stimulatory and enhance the humoral immune response...
January 2, 2017: Developmental and Comparative Immunology
https://www.readbyqxmd.com/read/28040605/g-protein-coupled-receptor-34-in-ovarian-granulosa-cells-of-cattle-changes-during-follicular-development-and-potential-functional-implications
#4
L J Spicer, L F Schütz, J A Williams, N B Schreiber, J R Evans, M L Totty, J N Gilliam
Abundance of G protein-coupled receptor 34 (GPR34) mRNA is greater in granulosa cells (GCs) of cystic vs normal follicles of cattle. The present experiments were designed to determine if GPR34 mRNA in granulosa cell [GC] changes during selection and growth of dominant follicles in cattle as well as to investigate the hormonal regulation of GPR34 mRNA in bovine GC in vitro. In Exp. 1, estrous cycles of nonlactating cows were synchronized and then ovariectomized on either day 3-4 or 5-6 after ovulation. GPR34 mRNA abundance in GC was 2...
December 11, 2016: Domestic Animal Endocrinology
https://www.readbyqxmd.com/read/28040487/a-waterborne-chemical-cue-from-gulf-toadfish-opsanus-beta-prompts-pulsatile-urea-excretion-in-conspecifics
#5
Jeremy Fulton, Christophe M R LeMoine, Carol Bucking, Kevin V Brix, Patrick J Walsh, M Danielle McDonald
The Gulf toadfish (Opsanus beta) has a fully functional ornithine urea cycle (O-UC) that allows it to excrete nitrogenous waste in the form of urea. Interestingly, urea is excreted in a pulse across the gill that lasts 1-3h and occurs once or twice a day. Both the stress hormone, cortisol, and the neurotransmitter, serotonin (5-HT) are involved in the control of pulsatile urea excretion. This and other evidence suggests that urea pulsing may be linked to toadfish social behavior. The hypothesis of the present study was that toadfish urea pulses can be triggered by waterborne chemical cues from conspecifics...
December 28, 2016: Physiology & Behavior
https://www.readbyqxmd.com/read/28006716/biomolecular-aspects-of-depression-a-retrospective-analysis
#6
Brandon N Peacock, David J Scheiderer, Gottfried H Kellermann
OBJECTIVE: The effects of psychological stress, oxidative stress, and chronic low grade inflammation on the neuro-immune connection have been implicated in the pathogenesis of depression. Thus, in the recent past, there has been a growing effort in determining the mechanism of this pathogenesis. While attempting to map out, this mechanism researchers and clinicians have searched for clinically relevant biomarkers for use in the diagnosis and for the assessment of those suffering from depression...
November 10, 2016: Comprehensive Psychiatry
https://www.readbyqxmd.com/read/27999088/interplay-between-the-endocrine-and-circadian-systems-in-fishes
#7
Esther Isorna, Nuria De Pedro, Ana Isabel Valenciano, Ángel Luis Alonso-Gómez, María Jesús Delgado
The circadian system is responsible for the temporal organisation of physiological functions which, in part, involves daily cycles of hormonal activity. In this review, we analyse the interplay between the circadian and endocrine systems in fishes. We first describe the current model of fish circadian system organisation and the basis of the molecular clockwork that enables different tissues to act as internal pacemakers. This system consists of a net of central and peripherally located oscillators, and can be synchronised by the light-dark and feeding-fasting cycles...
December 20, 2016: Journal of Endocrinology
https://www.readbyqxmd.com/read/27993552/new-pcos-like-phenotype-in-older-infertile-women-of-likely-autoimmune-adrenal-etiology-with-high-amh-but-low-androgens
#8
Norbert Gleicher, Vitaly A Kushnir, Sarah K Darmon, Qi Wang, Lin Zhang, David F Albertini, David H Barad
How anti-Müllerian hormone (AMH) and testosterone (T) interrelate in infertile women is currently largely unknown. We, therefore, in a retrospective cohort study investigated how infertile women with high-AMH (AMH ≥75th quantile; n=144) and with normal-AMH (25th-75th quantile; n=313), stratified for low-T (total testosterone ≤19.0ng/dL), normal-T (19.0-29.0ng/dL) and high-T (>29.0ng/dL) phenotypically behaved. Patient age, follicle stimulating hormone (FSH), dehyroepiandrosterone (DHEA), DHEA sulphate (DHEAS), cortisol (C), adrenocorticotrophic hormone (ACTH), IVF outcomes, as well as inflammatory and immune panels were then compared between groups, with AMH and T as variables...
December 16, 2016: Journal of Steroid Biochemistry and Molecular Biology
https://www.readbyqxmd.com/read/27989716/the-influence-of-coping-strategies-and-behavior-on-the-physiological-response-to-social-stress-in-women-the-role-of-age-and-menstrual-cycle-phase
#9
Carolina Villada, Laura Espin, Vanesa Hidalgo, Sara Rubagotti, Andrea Sgoifo, Alicia Salvador
There is information indicating that the variations induced by the menstrual cycle may influence the capacity of young women to respond to stress. The physiological response to stress changes across the stages of the lifespan; however, in spite of the great increase in life expectancy, the way women react after menopause, a period characterized by a dramatic decline in sex hormones, has not been sufficiently studied. The main objective of the study was to examine the capacity to respond to and recover from an acute social stressor in post-menopausal women compared to young women...
December 15, 2016: Physiology & Behavior
https://www.readbyqxmd.com/read/27981182/stress-induced-increases-in-progesterone-and-cortisol-in-naturally-cycling-women
#10
Alexandra Ycaza Herrera, Shawn E Nielsen, Mara Mather
Studies with animals of both sexes show that the adrenal glands release progesterone in addition to cortisol in response to stress. However, little is known about the progesterone response to stress in naturally cycling women. We investigated the effect of stress on estradiol, progesterone, and cortisol levels in women during the follicular phase of the menstrual cycle. We found that physical stress (the cold pressor test) had no effect on estradiol levels, but increased progesterone and cortisol. We also found positive correlations between baseline progesterone and cortisol levels, as well as between the change in progesterone and cortisol before and after water exposure in both the stress and control sessions...
June 2016: Neurobiology of Stress
https://www.readbyqxmd.com/read/27956788/steroid-and-metabolic-hormonal-profile-of-porcine-serum-vis-%C3%A3-vis-ovarian-follicular-fluid
#11
Soumen Naskar, S Borah, Y Vashi, R Thomas, D K Sarma, J Goswami, S K Dhara
AIM: This study was conducted to understand whether serum level of the steroid and metabolic hormones may be indicative of their level in ovarian follicular fluid (FF) in porcine, and its influence on fertility. MATERIALS AND METHODS: Ovaries from pigs (n=32) of two genetic groups, namely, native (Ghungroo; n=16) and crossbred (Hampshire × Ghungroo; n=16) were collected. Both the genetic groups comprised gilts (n=8) and sows (n=8), and sows were in luteal phase of estrus cycle...
November 2016: Veterinary World
https://www.readbyqxmd.com/read/27931005/microfluidic-immunosensor-for-rapid-and-highly-sensitive-salivary-cortisol-quantification
#12
V Pinto, P Sousa, S O Catarino, M Correia-Neves, G Minas
This paper presents a novel poly(dimethylsiloxane) (PDMS) microfluidic immunosensor that integrates a complementary metal-oxide-semiconductor (CMOS) optical detection system for a rapid and highly-sensitive quantification of salivary cortisol. The simple and non-invasive method of saliva sampling provides an interesting alternative to the blood, allowing a fast sampling at short intervals, relevant for many clinical diagnostic applications. The developed approach is based on the covalent immobilization of a coating antibody (Ab), a polyclonal anti-IgG, onto a treated PDMS surface...
April 15, 2017: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/27870412/cortisol-reactivity-and-emotional-memory-after-psychosocial-stress-in-oral-contraceptive-users
#13
Kristen L Mordecai, Leah H Rubin, Erin Eatough, Erin Sundermann, Lauren Drogos, Antonia Savarese, Pauline M Maki
Oral contraceptive (OC) users typically show a blunted or no cortisol response to psychosocial stress. Although most OC regimens include both an inactive (dummy) and active pill phase, studies have not systematically investigated cortisol responses during these pill phases. Further, high levels of cortisol following a stressor diminish retrieval of emotional material, but the effects of stress on memory among OC users are poorly understood. We examined the effects of a psychosocial stressor, the Trier Social Stress Test, vs...
January 2, 2017: Journal of Neuroscience Research
https://www.readbyqxmd.com/read/27863207/effects-of-morning-versus-evening-combined-strength-and-endurance-training-on-physical-performance-muscle-hypertrophy-and-serum-hormone-concentrations
#14
Maria Küüsmaa, Moritz Schumann, Milan Sedliak, William J Kraemer, Robert U Newton, Jari-Pekka Malinen, Kai Nyman, Arja Häkkinen, Keijo Häkkinen
This study investigated the effects of 24 weeks of morning versus evening same-session combined strength (S) and endurance (E) training on physical performance, muscle hypertrophy, and resting serum testosterone and cortisol diurnal concentrations. Forty-two young men were matched and assigned to a morning (m) or evening (e) E + S or S + E group (mE + S, n = 9; mS + E, n = 9; eE + S, n = 12; and eS + E, n = 12). Participants were tested for dynamic leg press 1-repetition maximum (1RM) and time to exhaustion (Texh) during an incremental cycle ergometer test both in the morning and evening, cross-sectional area (CSA) of vastus lateralis and diurnal serum testosterone and cortisol concentrations (0730 h; 0930 h; 1630 h; 1830 h)...
December 2016: Applied Physiology, Nutrition, and Metabolism, Physiologie Appliquée, Nutrition et Métabolisme
https://www.readbyqxmd.com/read/27849116/reliability-of-salivary-cortisol-and-immunoglobulin-a-measurements-from-the-ipro%C3%A2-before-and-after-sprint-cycling-exercise
#15
Luke A Macdonald, Phillip M Bellinger, Clare L Minahan
BACKGROUND: The purpose of this study was to evaluate the inter-day reliability of the IPRO method for determining resting and post-exercise salivary cortisol (sCort) and rate of salivary Immunoglobulin-A (sIgA) secretion. METHODS: Fourteen males (32±11 years) performed two trials (T1 and T2) separated by 7 d, comprising saliva sampling before and 15 min after completion of two, 30-s Wingate Anaerobic Tests separated by 3.5 min (2 x WAnT). sCort increased after the 2 x WAnT in both trials (T1: p<0...
November 16, 2016: Journal of Sports Medicine and Physical Fitness
https://www.readbyqxmd.com/read/27774458/short-term-high-intensity-interval-training-on-body-composition-and-blood-glucose-in-overweight-and-obese-young-women
#16
Zhaowei Kong, Shengyan Sun, Min Liu, Qingde Shi
This study was to determine the effects of five-week high-intensity interval training (HIIT) on cardiorespiratory fitness, body composition, blood glucose, and relevant systemic hormones when compared to moderate-intensity continuous training (MICT) in overweight and obese young women. Methods. Eighteen subjects completed 20 sessions of HIIT or MICT for five weeks. HIIT involved 60 × 8 s cycling at ~90% of peak oxygen consumption ([Formula: see text]) interspersed with 12 s recovery, whereas MICT involved 40-minute continuous cycling at 65% of [Formula: see text]...
2016: Journal of Diabetes Research
https://www.readbyqxmd.com/read/27769202/a-double-blind-randomized-controlled-trial-to-assess-the-effect-of-bright-light-therapy-on-depression-in-patients-with-parkinson-s-disease
#17
Sonja Rutten, Chris Vriend, Jan H Smit, Henk W Berendse, Adriaan W Hoogendoorn, Odile A van den Heuvel, Ysbrand D van der Werf
BACKGROUND: A disturbed circadian rhythm seems to be a causal factor in the occurrence of depressive disorders in patients with Parkinson's disease (PD). The circadian rhythm can be restored with light. Therefore, Bright Light Therapy (BLT) might be a new treatment option for depression in PD patients. METHODS/DESIGN: In this double-blind controlled trial, 84 subjects with idiopathic PD are randomized to either BLT or a control light condition. The BLT condition emits white light with an intensity of 10,000 Lux, while the control device emits dim white light of 200 Lux, which is presumed to be too low to influence the circadian rhythm...
October 21, 2016: BMC Psychiatry
https://www.readbyqxmd.com/read/27746640/acute-stress-induced-changes-in-follicular-dermal-papilla-cells-and-mobilization-of-mast-cells-implications-for-hair-growth
#18
Hyoseung Shin, Soon-Jin Choi, A-Ri Cho, Dong Young Kim, Kyu Han Kim, Ohsang Kwon
BACKGROUND: Stress is a known cause of hair loss in many species. OBJECTIVE: In this study, we investigated the role of acute stress on hair growth using a rat model. METHODS: Rats were immobilized for 24 hours and blood samples, and skin biopsies were taken. The effect of stress-serum on the in vitro proliferation of rat and human dermal papilla cells (hDPCs), as well as serum cortisol and corticotropin-releasing hormone levels, were measured...
October 2016: Annals of Dermatology
https://www.readbyqxmd.com/read/27743863/a-wearable-multisensing-patch-for-continuous-sweat-monitoring
#19
Salzitsa Anastasova, Blair Crewther, Pawel Bembnowicz, Vincenzo Curto, Henry Md Ip, Bruno Rosa, Guang-Zhong Yang
In sport, exercise and healthcare settings, there is a need for continuous, non-invasive monitoring of biomarkers to assess human performance, health and wellbeing. Here we report the development of a flexible microfluidic platform with fully integrated sensing for on-body testing of human sweat. The system can simultaneously and selectively measure metabolite (e.g. lactate) and electrolytes (e.g. pH, sodium) together with temperature sensing for internal calibration. The construction of the platform is designed such that continuous flow of sweat can pass through an array of flexible microneedle type of sensors (50µm diameter) incorporated in a microfluidic channel...
September 21, 2016: Biosensors & Bioelectronics
https://www.readbyqxmd.com/read/27729872/muscle-glycogen-depletion-following-75-km-of-cycling-is-not-linked-to-increased-muscle-il-6-il-8-and-mcp-1-mrna-expression-and-protein-content
#20
David C Nieman, Kevin A Zwetsloot, Dominic D Lomiwes, Mary P Meaney, Roger D Hurst
The cytokine response to heavy exertion varies widely for unknown reasons, and this study evaluated the relative importance of glycogen depletion, muscle damage, and stress hormone changes on blood and muscle cytokine measures. Cyclists (N = 20) participated in a 75-km cycling time trial (168 ± 26.0 min), with blood and vastus lateralis muscle samples collected before and after. Muscle glycogen decreased 77.2 ± 17.4%, muscle IL-6, IL-8, and MCP-1 mRNA increased 18.5 ± 2.8-, 45.3 ± 7.8-, and 8.25 ± 1.75-fold, and muscle IL-6, IL-8, and MCP-1 protein increased 70...
2016: Frontiers in Physiology
keyword
keyword
110375
1
2
Fetch more papers »
Fetching more papers... Fetching...
Read by QxMD. Sign in or create an account to discover new knowledge that matter to you.
Remove bar
Read by QxMD icon Read
×

Search Tips

Use Boolean operators: AND/OR

diabetic AND foot
diabetes OR diabetic

Exclude a word using the 'minus' sign

Virchow -triad

Use Parentheses

water AND (cup OR glass)

Add an asterisk (*) at end of a word to include word stems

Neuro* will search for Neurology, Neuroscientist, Neurological, and so on

Use quotes to search for an exact phrase

"primary prevention of cancer"
(heart or cardiac or cardio*) AND arrest -"American Heart Association"