Endocrine Abstracts

Aim: Increased cardiovascular incidents and a high risk for microvascular complications are associated with type 2 diabetes. Worldwide, metformin is the most commonly prescribed antidiabetic drug. Polymorphisms in the Oct1 gene can alter the function or activity of organic cation transporter 1 (Oct1), thus changing metformin efficacy (Oct1 acting as its main transporter) as well as influencing the actions of Oct1 physiological substrates. In the past, polymorphisms in...

Objective: Studies in rodents indicate a role of vitamin D in male reproduction but the relationship between vitamin D and androgen levels in men is largely unexplored. We aimed to investigate the association of 25-hydroxyvitamin D [25(OH)D] levels with testosterone, FAI (free androgen index), and SHBG. Moreover, we examined whether androgen levels show a similar seasonal variation to 25(OH)D.Design: In this cross-sectional study, 25(OH)D, testosterone, ...

Background: The myocardium is a target tissue for vitamin D, that was shown to exert several effects on cardiac contractility and calcium homeostasis. We aimed to elucidate whether insufficient vitamin D status is associated with heart failure and sudden cardiac death (SCD).Methods and Results: We measured 25-hydroxyvitamin D [25(OH)D] in 3299 Caucasian patients that were all routinely referred to coronary angiography at baseline (1997–2000). 25(OH)...

Context: The aldosterone to active renin ratio (AARR) is the recommended screening test for primary aldosteronism (PA), but prospective study data on its sensitivity and specificity are sparse.Objective: We investigated the diagnostic accuracy of the AARR for detecting PA.Design: This is a prospective diagnostic accuracy study.Setting: This study was conducted from February 2009 to August 2015 at the outpatie...

Introduction: Soluble ST2 (sST2) is the truncated soluble form of the ST2 receptor in the circulation. It is a decoy receptor of IL-33 and thereby inhibits the effects of IL-33/ST2 signaling. Elevated levels of sST2 have been associated with various adverse cardiovascular outcomes. Recently, potential associations of sST2 with obesity and type 2 diabetes mellitus (T2DM) have been described in the general population. In this study, we determined possible cross-sectional associa...