OBJECTIVE To investigate overnight variations in absolute values and patterns of cytokines including interleukin 6 (IL6) and tumour necrosis factor alpha (TNFalpha) in rheumatoid arthritis (RA), and to relate any changes to those occurring in blood cortisol. METHODS A total of 16 people (8 female) with active RA and who had received no recent glucocorticoids were admitted overnight. Blood sam...

When the free cortisol in urine was analyzed by liquid chromatography after pretreatment with the usual organic extraction, interfering substances having chromatographic behavior similar to that of cortisol and the internal standard precluded accurate measurement. To remove these materials, we processed the organic extract by liquid chromatography with a normal-phase column for clean-up; the sp...

As a neurotransmitter or neuromodulator, brain histamine has a variety of physiological roles in brain functions such as hypothalamic- pituitary- adrenal (HPA) activity. Histamine induces the release of ACTH through the activation of hypothalamic neurons containing vasopressin and CRH. Histamine induces the activity of HPA axis directly or indirectly. Endogenous opioids modulate the (HPA) axis ...

As a neurotransmitter or neuromodulator, brain histamine has a variety of physiological roles in brain functions such as hypothalamic- pituitary- adrenal (HPA) activity. Histamine induces the release of ACTH through the activation of hypothalamic neurons containing vasopressin and CRH. Histamine induces the activity of HPA axis directly or indirectly. Endogenous opioids modulate the (HPA) axis ...

background: acute intoxication with alp is extremely lethal. the present study was conducted to determine the range of serum cortisol levels in alp poisoning and its correlation with patient outcome. methods: this study was carried out on patients who were intoxicated with alp. their demographic data and pertinent findings in their history and physical examination were recorded at the time of a...

Aims: Hormones' response to competition and their relation to sport matches have been extensively investigated in male and less widely in female athletes. Stress is an irresistible part of every sport match which is mostly caused by competition. In the present study, female volleyball players were examined for changes in dehydroepiandrosterone (DHEA) and salivary cortisol in response to competi...

To prove the clinical usefulness of cortisol measurements in saliva for the exact assessment of a patient's corticoid status under therapeutic hormone substitution, we measured simultaneously total cortisol in serum and non-protein-bound cortisol in saliva after administration of different forms of hydrocortisone (cortisol) in eight cortisol-suppressed, healthy male volunteers. The intravenous ...

Recent efforts have provided convincing evidence for the use of fish scale cortisol concentration in assessment long-term stress fishes. However, alone is not sufficient to fully describe this state stress. Dehydroepiandrosterone (DHEA) an androgen with actions that oppose those cortisol. The means by which DHEA negates effects occurs part via changes metabolism cortisone. quantitation cortisol...