Dehydroepiandrosterone sulfate (DHEAS) is a neuroactive steroid with antagonist action at gamma-aminobutyric acid type A (GABAA) receptors. Patch-clamp techniques were used to investigate DHEAS actions at GABAA receptors of the rat pituitary gland at two distinct loci: posterior pituitary nerve terminals and intermediate pituitary endocrine cells. The GABA responses in these two regions were qu...

This study examines day-to-day patterns of salivary cortisol and dehydroepiandrosterone (DHEA) under baseline conditions and in response to mild stress among 59 children residing in a rural Caribbean village. Cortisol secretion showed the typical circadian variation with high levels in the morning. Children showed significant increases of cortisol before and during a videotaped interview when c...

BACKGROUND Previous studies suggested that alterations in serum cortisol and DHEA-S levels may play a role in the pathophysiology of schizophrenia. Imbalance in serum cortisol and DHEA-S levels may be related to responsivity to antipsychotic treatment. AIM To compare serum cortisol and DHEA-S levels between patients with schizophrenia and healthy controls and to evaluate their association wit...

The decrease with age of the adrenal-secreted dehydroepiandrosterone sulfate (DHEAS) in serum has suggested that it may be causally related to longevity. For the PAQUID [People (Personnes) Aged (Agées) About What (Quid, in Latin)] cohort of elderly subjects, we have previously reported higher DHEAS in men than in women, a decrease with age and, among men, a negative correlation between the DHEA...

BACKGROUND Chronic urticaria (CU) is known to be one of the most disturbing diseases which significantly affect the quality of life. Prolactin (PRL) and DHEA-S (dehydroepiandrosterone sulfate) are stress-associated hormones in chronic urticaria. OBJECTIVE In the present study, we measured DHEA-S and prolactin levels of CU patients, compared them with healthy subjects and evaluated the associa...

BACKGROUND Cholesterol 3-sulfate is present on a variety of cells and in human LDL, and it has been found in atherosclerotic lesions of human aorta. Its precise biological role has not yet been described. METHODS AND RESULTS In this study, we investigated the interaction of platelets with cholesterol sulfate. Platelets adhered in a concentration-dependent and saturable manner to cholesterol s...