Context: Effective treatment for the ectopic ACTH secretion syndrome (EAS) remains a therapeutic challenge. Immediate curative surgery of the responsible nonpituitary tumor is often not possible.
Objective: The objective of the study was to evaluate 1,ortho-1, para'-dichloro-diphenyl-dichloro-ethane (O,p'DDD) therapy in EAS.
Context: Midnight salivary cortisol (MSC) is now recognized as a reliable index for Cushing's syndrome diagnosis but has to be validated for the follow-up of treated patients.
Objective: Our objective was to evaluate MSC for assessing the outcome of transsphenoidal surgery (TSS) in patients with Cushing's disease (CD).
Design: We conducted a retrospective cohort study in a single center.
Objective: Adrenocortical tumors (ACT) account for no more than 0.2% of the causes of androgen excess (AE). Conversely, these rare tumors have a very poor prognosis.
View Article and Find Full Text PDFContext: Adrenalectomy is a radical treatment for hypercortisolism in Cushing's disease. However, it may lead to Nelson's syndrome, originally defined by the association of a pituitary macroadenoma and high plasma ACTH concentrations, a much feared complication.
Objective: The objective of the study was to reconsider Nelson's syndrome by investigating corticotroph tumor progression based on pituitary magnetic resonance imaging scan and search for predictive factors.
We previously have described molecular mechanisms converging at the Nur response element-signal transducer and activator of transcription (STAT) composite site responsible for synergistic activation of the proopiomelanocortin (POMC) gene promoter by leukemia inhibitory factor (LIF) and CRH. In this study, we asked how glucocorticoids (GC), the physiological negative regulators of POMC gene expression, modulate this synergism. In the corticotroph cell line AtT-20, the response of the wild-type promoter to LIF+CRH was barely inhibited by GC, whereas a distal promoter subregion (-414/-293) encompassing the Nur response element-STAT site and devoid of the negative GC-responsive element located in the proximal domain, displayed a cooperative response to LIF+dexamethasone (DEX) and LIF+CRH+DEX treatments.
View Article and Find Full Text PDFObjective: To assess the prevalence of relative adrenal insufficiency in patients successfully resuscitated after cardiac arrest, and its prognostic role in post-resuscitation disease.
Design And Setting: A prospective observational single-center study in a medical intensive care unit.
Patients: 64 patients hospitalised in the intensive care unit after successful resuscitation for out-of-hospital cardiac arrest.
We assessed the value of midnight salivary cortisol for the initial diagnosis of Cushing's syndrome. Sixty-three patients with various causes of Cushing's syndrome (37 with Cushing's disease, 17 with adrenal Cushing's syndrome, and nine with ectopic ACTH syndrome) and 54 control subjects with simple obesity were studied. All patients with Cushing's syndrome excreted more than 90 microg urinary free cortisol (UFC)/d (248 nmol/d), and all controls excreted less than 90 microg/d UFC.
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