Search results for "CORTISOL"
showing 10 items of 189 documents
Cortisol suppression and hearing thresholds in tinnitus after low-dose dexamethasone challenge
2012
Abstract Background Tinnitus is a frequent, debilitating hearing disorder associated with severe emotional and psychological suffering. Although a link between stress and tinnitus has been widely recognized, the empirical evidence is scant. Our aims were to test for dysregulation of the stress-related hypothalamus-pituitary adrenal (HPA) axis in tinnitus and to examine ear sensitivity variations with cortisol manipulation. Methods Twenty-one tinnitus participants and 21 controls comparable in age, education, and overall health status but without tinnitus underwent basal cortisol assessments on three non-consecutive days and took 0.5 mg of dexamethasone (DEX) at 23:00 on the first day. Corti…
No Effects of Acute Psychosocial Stress on Working Memory in Older People With Type 2 Diabetes
2021
Type 2 diabetes (T2D) has been considered a public health threat due to its growing prevalence, particularly in the older population. It is important to know the effects of psychosocial stress and its potential consequences for some basic cognitive processes that are important in daily life. Currently, there is very little information about how people with T2D face acute psychosocial stressors, and even less about how their response affects working memory (WM), which is essential for their functionality and independence. Our aim was to characterize the response to an acute laboratory psychosocial stressor and its effects on WM in older people with T2D. Fifty participants with T2D from 52 to…
Stress effects on cognitive function in healthy adults
2015
In our lives, we are constantly exposed to different sources of stress, specifically psychological or social. Our reaction to stress is an adaptive response due to its role in facilitating survival. However, stress can also have immediate and delayed damaging consequences for health, and it is considered one of the most significant health problems of the 21st century, according to the World Health Organization (2001). The impact of stress extends to most of the physiological systems (i.e. cardiovascular, digestive, immune, neuroendocrine or nervous), resulting in numerous diseases. Cognitive problems stand out among the stress effects related to the nervous system. Given the large impact th…
Intestinal dysbiosis and hormonal neuroendocrine secretion in the fibromyalgic patient
2018
Fibromyalgia is a rheumatic syndrome and its pathogenesis is controversial. The recent literature has placed considerable attention on the link between alteration of the intestinal microbiota and fibromyalgia, emphasizing the close connection between the neuroenteric system and the CNS. This study aims to evaluate the probable relationship between intestinal dysbiosis and altered secretion of hormones and vitamins such as cortisol, serotonin, Vitamin D and thyroid hormones in a patient with fibromyalgia.
Importance of psychological factors in adrenocortical functioning and subjective memory complaints
2022
El estrés ha sido considerado uno de los principales problemas de la sociedad actual, ya que se ha relacionado con diversas condiciones de salud mental y física, así como con enfermedades propias de la edad y problemas de memoria. Sin embargo, existen diferencias individuales en la forma en que las personas enfrentan situaciones estresantes. En este sentido, algunas personas, a pesar de estar expuestas a los mismos niveles de estrés, no desarrollan patologías, lo que sugiere que ciertos factores psicológicos podrían actuar como protectores de los efectos del estrés. La resiliencia, que engloba pensamientos positivos y optimistas, ha sido entendida como la capacidad de afrontar la adversidad…
EFFECTS OF SHIFT WORK ON CARDIOVASCULAR ACTIVITY, SERUM CORTISOL AND WHITE BLOOD CELLS COUNT IN A GROUP OF ITALIAN FISHERMEN
2012
We analyzed the effects of working activity and working shifts on the circadian rhythmicity and circadian phase relations of serum cortisol level, white blood cells count, resting heart rate and systolic/diastolic blood pressure in a group of italian fishermen. We observed a shift-induced displacement of cortisol secretion and a modification in leukocyte count. Moreover, systolic/diastolic blood pressure and resting heart rate were markedly influenced by the night shift, whereas no appreciable changes were observed after the morning and afternoon shifts, compared to pre-working values. These data suggest that the human circadian system is greatly influenced by shift work, and serum cortisol…
Effects of Social Hierarchy Establishment on Stress Response and Cell Phagocytosis in Gilt-Head Sea Bream (Sparus aurata)
2022
Social stress can affect the ability of fish to respond to various stressors, such as pathogens or environmental variations. In this paper, the effects of social stress on gilt-head bream (Sparus aurata) were investigated. To study the effects of physiological stress, we evaluated biochemical and cellular parameters, such as cortisol, glucose, lactate, osmolarity, and phagocytosis, 24 h after the establishment of social hierarchy in a group of three fish. Social hierarchy was determined and characterized by behavioral observation (aggressive acts and feeding order) of the specimens (dominant: “α”; subordinate: “β” and “γ”). After the esta…
seabream(Sparus aurata)hierarchies of social behaviour affects stress responses and immunity
2014
Loneliness in adult people: its relationships with stress, health and hypothalamic-pituitary-adrenal axis functioning
2022
El sentiment de solitud és un dels principals problemes de les societats occidentals. En els últims anys els avanços en internet ens han portat a ser una societat més connectada que mai, a pesar d’açò, aquest sentiment s’està incrementant. Per sobreviure i prosperar, els éssers humans necessitem dels altres per satisfer les necessitats d’afecte, pertinença i reconeixement. D’aquesta manera, la solitud sorgeix de la discrepància entre les relacions íntimes i socials desitjades i les reals. La investigació indica que la solitud està relacionada amb l’estrès i amb diverses conseqüències en la salut tant física com psicològica. Aquesta es pot experimentar al llarg de la vida, encara que és més …
Estudio longitudinal del impacto de la violencia de pareja sobre la salud mental y el sistema endocrino de las mujeres
2012
Está ampliamente reconocido que la violencia de pareja tiene un elevado impacto sobre la salud integral de las mujeres. En este sentido, resulta necesario investigar tal impacto a lo largo del tiempo y evaluar qué factores contribuyen a la recuperación o deterioro de la salud. Los objetivos de esta Tesis fueron, en primer lugar, evaluar la evolución de la salud mental, principalmente: sintomatología depresiva, ansiedad, trastorno de estrés postraumático (PTSD) y suicidio, y la evolución del impacto sobre el sistema endocrino, concretamente el funcionamiento de las hormonas cortisol y dehidroepiandrosterona (DHEA) a lo largo de un periodo de tres años, y en segundo lugar, estudiar qué factor…