Endocrine Abstracts

Aldosterone is synthesized acutely upon stimulation of the renin-angiotensin-aldosterone system from the cells of the zona glomerulosa. Several enzymes are involved in this steroidogenic process including the steroidogenic acute regulatory protein (StAR), P450 side chain cleavage enzyme (Cyp11a1) and aldosterone synthase, the product of the gene Cyp11b2.We investigated the short time transcriptional regulation of these genes in wild type mi...

Differential diagnosis between bilateral adrenal hyperplasia (BAH) and aldosterone producing adenoma (APA) in aldosteronism remains challenging in many cases due to the high prevalence of incidentalomas during imaging techniques, the limited sensitivity of orthostatic testing and the technical difficulties of adrenal vein sampling (AVS).We investigated circadian variation in salivary aldosterone (SA) in patients with APA (n=22) and BAH (n=2...

Background: Although papillary thyroid carcinoma (PTC) is considered to have an excellent prognosis, some more aggressive variants have been identified that show reduced overall survival rates. Besides from the diffuse sclerosing, tall cell, columnar cell, and solid variant, the hobnail variant was newly recognized as one of these aggressive forms, affecting recurrence, metastasis, and overall survival rates.Methods: We performed a systematic review and ...

In an attempt to define novel genetic loci involved in the pathophysiology of primary aldosteronism a mutagenesis screen after treatment with the alkylating agent N-ethyl-N-nitrosourea was established for the parameter aldosterone. One of the established mouse lines with hyperaldosteronism was phenotypically and genetically characterized. Affected animals showed an increased aldosterone to renin ratio (males unaffected, 1.1±0.1 pg/ml per ng per ml per hour v...

Although primary aldosteronism (PA) is considered to be the most prevalent cause of secondary hypertension the underlying genetic mechanisms have been elucidated only for the rare familial forms of the disease. In an attempt to define novel genetic loci involved in the pathophysiology of PA a phenotype-driven mutagenesis screening after treatment with the alkylating agent N-ethyl-N-nitrosourea was established for the parameter aldosterone. The aldosterone values ...

According to recent studies, primary aldosteronism is considered to be responsible for almost 10% of all cases of arterial hypertension. The genetic background of this common disease, however, has been elucidated only for the rare familial types whereas in the large majority of sporadic cases it still remains unclear. In an attempt to define novel genetic mechanisms of hyperaldosteronism we utilized a random mutagenesis screen after treatment with the alkylating agent N...