Endocrine Abstracts

Ronald M Evans, The Salk Institute for Biological Studies, LaJolla, California, USA Abstracthttp://www.endocrine-abstracts.org/ea/0031/ea0031pl1biog.htm...

Vitamin D deficiency is associated with the development of some cancers and in vitro 1,25-dihydroxyvitamin D (1,25D) reduces cell proliferation. We suggest that modification of tissue specific immune responses, as a consequence of local synthesis of 1,25D, may be key. To assess the impact of serum 25D on the risk of bladder cancer we conducted a systematic review. To test our hypothesis, expression of vitamin D signalling components and the synthesis of 1,25D were exa...

Chronic inflammatory disease is often accompanied by angiogenesis and fibrosis. Glucocorticoids (GCs) exert anti-inflammatory and anti-angiogenic effects, in which macrophages are a major target. Local endogenous GC action is controlled by 11β-hydroxysteroid dehydrogenase (11β-HSD), with the type 1 isozyme, 11β-HSD1 converting inactive GCs into active forms. Mice deficient in 11β-HSD1 have a phenotype consistent with reduced glucocorticoid action, including...

Dissection or rupture of the aorta accounts for death in 2-8% of women with Turner Syndrome (TS), and dilatation of the aortic root, has been reported as a predisposing factor. We compared measures of arterial structure, stiffness and endothelial function to investigate whether women with TS have a fundamental arterial wall defect which extends beyond the arch of the aorta. Local Ethics Committee approval was obtained.Age-matched women with TS (n=93), 46...

Dissection or rupture of the aorta accounts for death in 2-8% of women with Turner Syndrome (TS), and dilatation of the aortic root, has been reported as a predisposing factor. We compared measures of arterial structure, stiffness and endothelial function to investigate whether women with TS have a fundamental arterial wall defect which extends beyond the arch of the aorta. Local Ethics Committee approval was obtained.Age-matched women with TS (n=93), 46...

IntroductionCardiovascular disease, which may be structural or ischaemic, is the major cause of morbidity and mortality for women with Turner Syndrome (TS). This study investigated arterial augmentation index (AI%) and pulse wave velocity (PWV) as measures of arterial stiffness in adults with TS. A more positive AI% and greater PWV indicate increased arterial stiffness.Method66 women with TS and 8 normal wome...

IntroductionCardiovascular disease, which may be structural or ischaemic, is the major cause of morbidity and mortality for women with Turner Syndrome (TS). This study investigated arterial augmentation index (AI%) and pulse wave velocity (PWV) as measures of arterial stiffness in adults with TS. A more positive AI% and greater PWV indicate increased arterial stiffness.Method66 women with TS and 8 normal wome...

C Ronald Kahn, Joslin Diabetes Centre, Harvard Medical School, Boston, USA AbstractDr C Ronald Kahn was born in Louisville, KY and received his undergraduate and medical degrees from the University of Louisville. After training in internal medicine at Barnes Hospital, St Louis, MO, he joined the NIH as a Clinical Associate in the Endocrinology Branch. Over the next 11 years, he rose to become the Head of the Secti...

Prolactin (PRL) is a peptide hormone produced by the anterior pituitary gland and it is commonly known for its lactogenic and mammotrophic effects. In humans and primates, prolactin is also expressed in extra-pituitary sites where it is associated with numerous biological functions, but its spectrum of expression varies in different species.Hyperprolactinemia-induced osteoporosis is believed to be mediated by hypogonadism, but the expression of the prola...

The prohormone T4 represents the majority of circulating thyroid hormones, whereas 80% of the active hormone T3 is derived from T4 by the actions of the type 1 and type 2 deiodinase enzymes (D1 and D2). Local generation of T3 by D2 regulates ligand supply to the nuclear T3-receptor in pituitary, brown adipose tissue and brain, and this enzyme is also expressed in bone. Hypothyroidism in children causes delayed bone age and growth retardation, whereas thyrotoxicosis in adults c...