the purpose of this study was to examine the longitudinal responses of pulmonary volumes and capacities to serum cortisol in young wrestlers. for this purpose, 24 healthy young wrestlers (age 23.9±0.8 years, height 180.64±0.7 cm, weight 76.3±7.3 kg, bmi 23.4±8.5) volunteered to participate in this study. the subjects performed an incremental wrestling training up to 85% of mhr of the training, ...

BACKGROUND Previous studies suggested that alterations in serum cortisol and DHEA-S levels may play a role in the pathophysiology of schizophrenia. AIM To compare serum cortisol and DHEA-S levels between patients with schizophrenia and healthy controls and to evaluate their association with the response to antipsychotic treatment. MATERIAL AND METHODS In this clinical prospective study were...

Although plasma corticosterone is considered the main glucocorticoid involved in regulation of stress responses in rodents, the presence of plasma cortisol and whether its level can be used as an indicator for rodent activation of stress remain to be determined. In this study, effects of estrous cycle stage, circadian rhythm, and acute and chronic (repeated or unpredictable) stressors of variou...

Cortisol controls the body's metabolism and response to inflammation and stress. Cortisol is released in pulses from the adrenal glands in response to pulses of adrenocorticotropic hormone (ACTH) released from the anterior pituitary; in return, cortisol has a negative feedback effect on ACTH release. Modeling cortisol secretion and the interactions between ACTH and cortisol allows for quantifyi...

We have investigated the specificity of the fluorometric method we proposed [C/in. Chem. 19, 710 (1973)] for plasma or serum li-hydroxycorticosteroid determinations. The principal specific fluorogenic contaminants in the cortisol-containing extract of plasma, as detected by thin-layer chromatography and chemically, were triglycerides and total cholesterol. These contaminants contributed an aver...

OBJECTIVE Previous studies showed that insulin stimulated directly calcitonin (Ct) secretion in the pig thyroid, while dexamethasone stimulated the production of Ct and Ct mRNA in medullary thyroid carcinoma (MTC) cell lines. The objective of this study was to investigate if hyperinsulinemia during the oral glucose tolerance test (GTT) stimulates Ct secretion in normal subjects as well as to ex...

Subclinical Cushing's syndrome (SCS) associated with adrenal incidentaloma is usually characterized by autonomous cortisol secretion without overt symptoms of Cushing's syndrome (CS). Although the diagnostic criteria for SCS differ among countries, the 1 mg dexamethasone suppression test (DST) is essential to confirm the presence and the extent of cortisol overproduction. Since 1995, SCS has be...

A radioassay for the measurement of cortisol binding capacity in human serum was developed and the results validated by radioimmunoassay of serum corticosteroid binding globulin. The mini-scale method is simple, reliable and rapid, and avoids separation of partitioned phases. The linear correlation between the free cortisol index and free cortisol concentration as calculated by the two methods ...