Endocrine Abstracts

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Background: Placental signalling has been postulated to drive inflammation, endothelial dysfunction and insulin resistance in gestational diabetes mellitus (GDM).Objectives: To determine if placental signalling contributes to systemic insulin resistance in GDM.Methods: Adiponectin, leptin, adipsin and resistin in placental and omental explant culture supernatants (n=10 GDM and n=10 control) and maternal plasma (n=20 GDM and n=20 co...

Background: The CYP11B1 (11β-hydroxylase) and CYP11B2 (aldosterone synthase) genes are found in close proximity on human chromosome 8 and are highly polymorphic, enabling the definition of two common haplotypes. Haplotype1 includes the -344T and the Intron2 conversion polymorphisms in CYP11B2 and also the -1889T, -1859G polymorphisms in the regulatory region of CYP11B1. We and others have shown that these associate with increased aldosterone pr...

Context: Germline mutations of the gene encoding succinate dehydrogenase subunit B (SDHB) predispose to head and neck paraganglioma (HNPGL), sympathetic PGL, phaeochromocytoma and renal cell carcinoma for which regular surveillance is required. SDHB-associated tumors harbor germline and somatic mutations, consistent with Knudson’s two-hit hypothesis stating that the combination of an inactivating germline mutation as a first hit and somatic loss of funct...

Introduction: Adults with GH deficiency (GHD) have a decreased life expectancy due to cardiovascular diseases (CVD). Recombinant GH treatment has made replacement therapy an option in adults with GHD. Data on long-term efficacy and safety are limited and the implication for life expectancy remains to be established.Methods: The Dutch National Registry of GH Treatment in Adults was founded to gain more insight into long-term efficacy and safety of GH ther...

Background: Patients with secondary adrenal insufficiency show increased risk of cardiovascular disease. Higher doses of glucocorticoid replacement are related to an unfavourable metabolic profile. In the absence of randomized controlled trials assessing the effect of hydrocortisone dose on haemodynamics and blood pressure regulation, we determined effects of a higher vs a lower glucocorticoid replacement dose on blood pressure, the renin-angiotensin-aldosterone system (RAAS) ...

Introduction: There is growing evidence that quality of life (QoL) in patients with adrenal insufficiency (AI) is impaired. Undertreatment with glucocorticoids is associated with symptoms such as fatigue and gastrointestinal complaints whereas overtreatment is associated with impaired QoL. However, evidence for this is derived from observational studies which are prone to bias. Therefore, the aim of the present study was to compare two different physiological doses of hydrocor...

Background and Objective: Thyroid function reference ranges are statistically defined by the 2.5th and 97.5th percentiles, which do not account for potential risk of clinical outcomes. We aimed to define the optimal ranges of thyroid-stimulating hormone (TSH) and free thyroxine (FT4), based on the risk of cardiovascular disease (CVD) and mortality.Methods: We performed an individual-participant data analysis and identified prospecti...