Searchable abstracts of presentations at key conferences in endocrinology

ea0029p1164 | Nuclear receptors and Signal transduction | ICEECE2012

Chronic and acute effect of IL1β on sex hormone-binding globulin by decreasing HNF-4α via JNK/c-Jun pathway

Simo R. , Barbosa Desongles A. , Hernandez C. , Selva D.

Patients suffering from low-grade chronic inflammatory diseases such as rheumatoid arthritis, osteoarthritis, diabetes and obesity have low plasma SHBG levels. These diseases are characterized among other features by high plasma IL1β levels. The aim of the present study is to explore whether IL1β could regulate hepatic SHBG production to account for low SHBG levels in these diseases. We provide evidence that daily IL1β treatment reduces SHBG production in HepG2 ...

ea0026p308 | Obesity | ECE2011

TNFα plays an essential role in the downregulation of sex hormone-binding globulin production by decreasing hepatic HNF-4α through NF-κB activation

Barbosa-Desongles A , Simo R , Lecube A , Hernandez C , Selva D

The reason why obesity (a chronic low-grade inflammatory disease) is associated with low levels of sex hormone-binding globulin (SHBG) remains to be elucidated. In the present study we provide evidence that TNFα (a proinflammatory cytokine that increases with obesity) reduces SHBG production by human HepG2 hepatoblastoma cells. The effect of TNFα on human SHBG expression was mediated by NF-κB which causes the downregulation of HNF4α: a key SHBG transcriptio...

ea0037gp.15.02 | Diabetes and obesity – basic | ECE2015

Sex hormone-binding globulin protects against non-alcoholic fatty liver disease

Lopez Cristina Saez , Barbosa-Desongles Anna , Hernandez Cristina , Dyer Roger A , Innis Sheila M , Rafael Simo , Selva David M

Low plasma sex hormone-binding globulin (SHBG) levels are present in patients suffering chronic metabolic diseases, including non-alcoholic fatty liver disease (NAFLD). However, whether altered SHBG production plays a role in development and progression of this disease is unclear. To investigate SHBG involvement in NAFLD, we studied the effects of overexpressing SHBG in two mouse models, a genetically-induced model, by developing a double transgenic mouse by crossing the human...