Search results for "YPO"
showing 10 items of 3644 documents
Blood endocannabinoid levels in patients with panic disorder.
2020
Abstract Background The development and maintenance of anxiety disorders is not fully understood. There is consensus in the literature that in addition to genetic factors, social, psychological and neurobiological factors are of crucial importance. The present exploratory study investigates the influence of the endocannabinoids (EC) and related N-acylethanolamines (NA) on the maintenance of panic disorder (PD). Methods A total of n = 36 PD and n = 26 healthy controls (HC) were included in the study. Baseline characteristics showed no differences between the two groups. The participants were exposed to the Trier Social Stress Test (TSST) for reliable laboratory stress induction. Blood sample…
Effect of serotonin uptake inhibition by zimelidine on hypothalamic-pituitary-adrenal activity
1983
Plasma ACTH levels after oral ingestion of 2 g metyrapone at 24.00 hours in six healthy subjects were higher after pretreatment with zimelidine (300 mg) in comparison to placebo. Since zimelidine is a relatively selective serotonin reuptake inhibitor its action on hypothalamic-pituitary-adrenal (HPA) activity suggests that serotonin is a potent stimulator of ACTH release. The ratio of cortisol to 11-deoxycortisol was taken as a measure of 11-hydroxylase activity, which indicates biological activity of secreted ACTH. These cortisol/11-deoxycortisol ratios were significantly increased after zimelidine treatment, when compared to placebo. Both the ACTH response and the cortisol/11-deoxycortiso…
Comparison of Cortisol Stress Response in Patients with Panic Disorder, Cannabis-Induced Panic Disorder, and Healthy Controls
2018
<b><i>Background/Aims:</i></b> Little research effort has so far been dedicated to the analysis of the hypothalamic-pituitary-adrenal axis of aetiologically differing subgroups of patients with panic disorder (PD). The current study aimed at a deeper understanding of the cortisol stress response in cannabis-induced PD (CIPD) patients. <b><i>Methods:</i></b> Matched groups of 7 PD patients (mean age ± SD: 32.95 ± 9.04 years), 7 CIPD patients (31.94 ± 8.40 years), and 7 healthy controls (HC) (31.13 ± 8.57 years) were included in the study. The Trier Social Stress Test (TSST) was used for stress induction. Salivary cortisol samples were collected…
Hypothalamic-pituitary-thyroid axis in acromegaly
1983
To evaluate the hypothalamic-pituitary-thyroid axis in acromegaly, total and free thyroid hormones and TSH response to TRH were determined in 36 acromegalic patients. In 10 patients, rT3 and thyroxine binding globulin (TBG) were also assayed by radioimmunoassay. In 15 patients the TSH response to TRH was also studied after medical or surgical therapy of the acromegaly. In 34 patients total thyroid hormones were in the normal range whereas two patients had low serum levels of free thyroid hormones. Thirty-two of the acromegalic patients were euthyroid. However, only 43.7% of the euthyroid patients had a normal TSH response to TRH. Nine patients had a reduced TSH rise after TRH, whereas in 4 …
Intimate partner violence is associated with increased maternal hair cortisol in mother–child dyads
2015
Abstract Background The chronic consequences of intimate partner violence (IPV) on HPA activation are a topic of debate. The current study investigated hair cortisol concentrations in female victims of IPV and their children. Methods A total of 52 mother–child dyads were divided into two groups depending on exposure to IPV: IPV group (n = 27 dyads) and control group (n = 25 dyads). Hair cortisol concentration was measured in 1-cm-long hair strands, representing 30 days of exposure before assessment. PTSD and depression symptoms were assessed in the mother and child. Results Women reporting IPV presented with higher hair cortisol levels, depression and PTSD symptoms severity in comparison to…
Weekly monitoring of dexamethasone suppression response in depression: its relationship to change of body weight and psychopathology
1985
Abstract Weekly dexamethasone suppression tests (DST) were performed in 19 hospitalized patients with major depressive disorder, endogenous subtype, and who had an abnormal DST at admission. Depression scores (Hamilton Rating Scale) and weight changes were collected by investigators who were blind to the test results. Major findings were: (1) the DST gradually normalized 3–4 weeks prior to full resolution of clinical symptomatology; (2) weight loss was an important patient variable which may have contributed to false positive DST results; however, the positive correlation between changes in DST results and changes in depression scores in all our patients with or without weight loss suggests…
Adrenal morphology and function in acromegalic patients in relation to disease activity.
2009
Visceromegaly is a common consequence of acromegaly. However, few studies investigated the chronic effects of growth hormone on adrenal glands. Our aim was to evaluate adrenal morphology and function in a cohort of acromegalic patients in relation to disease activity. Twenty-six acromegalics (10 males and 16 females) and 21 healthy subjects were investigated. Gland morphology was evaluated by computerized axial tomography, measuring central, lateral, and medial adrenal segments. Uncontrolled acromegalics showed increased volume of all adrenal segments, higher urinary free cortisol (UFC), and lower morning adrenocorticotropic hormone in comparison with healthy subjects. However, normal corti…
Stress-induced pro- and anti-inflammatory cytokine concentrations in panic disorder patients
2018
Abstract Background An attenuated responsivity of the hypothalamus–hypophysis-adrenal (HPA) axis upon challenge and an increased risk for cardiac events are relatively consistent findings in panic disorder (PD) patients. Due to cytokine-HPA interactions, an altered HPA-axis responsivity may be accompanied by altered cytokine concentrations. Immunological reactions under stress might be considered the missing link for explaining an increased cardiac risk. This study analyzed stress-induced cytokine levels in PD patients. Methods A total of n = 32 PD patients and n = 32 healthy control individuals performed the Trier Social Test (TSST). Blood sample collection accompanied the TSST for the col…
Haemorheological profile in congenital afibrinogenemia and in congenital dysfibrinogenemia: A clinical case report
2019
Although the inherited quantitative and qualitative disorders of fibrinogen are rare, in the course of time patients may develop complications including episodes of arterial and venous thrombosis. It can be useful to complete the laboratory assessment of these clinical conditions with the evaluation of the haemorheological profile. The data obtained from this study showed that congenital afibrinogenemia was characterized by a primary plasma hypoviscosity, whereas congenital dysfibrinogenemia by a primary plasma hyperviscosity. Both these haemorheological alterations may concur, with different mechanisms, to the pathogenesis of thrombotic vascular complications.
Training the Motor Cortex by Observing the Actions of Others During Immobilization
2014
International audience; Limb immobilization and nonuse are well-known causes of corticomotor depression. While physical training can drive the recovery from nonuse-dependent corticomotor effects, it remains unclear if it is possible to gain access to motor cortex in alternative ways, such as through motor imagery (MI) or action observation (AO). Transcranial magnetic stimulation was used to study the excitability of the hand left motor cortex in normal subjects immediately before and after 10 h of right arm immobilization. During immobilization, subjects were requested either to imagine to act with their constrained limb or to observe hand actions performed by other individuals. A third gro…