Searchable abstracts of presentations at key conferences in endocrinology

ea0029p925 | Female Reproduction | ICEECE2012

Variants of the NR5A1 gene in a large cohort of patients with primary ovarian insufficiency

Voican A. , Bachelot A. , Bouligand J. , Francou B. , Lombes M. , Touraine P. , Guiochon-Mantel A.

Premature ovarian insufficiency (POI) is a disorder which affects ~1% of women under 40 years of age. Genetic component has been suggested in the majority of cases of nonsyndromic forms, and recently mutations of NR5A1 have been reported to be associated with POI. In order to evaluate the frequency of NR5A1 mutations in POI together with the functional characterisation of the existing variants, we conducted a genetic study on a large cohort of POI patients.<p class=...

ea0029oc10.3 | Pituitary Clinical 2 | ICEECE2012

Pathophysiology of renal calcium handling in acromegaly revisited

Kamenicky P. , Blanchard A. , Gauci C. , Salenave S. , Letierce A. , Lombes M. , Azizi M. , Prie D. , Souberbielle J. , Chanson P.

Background: Hypercalciuria is frequent in patients with acromegaly, but it is unclear how GH/insulin-like growth factor 1 (IGF1) regulate renal calcium handling. Elevated fasting plasma calcium levels despite increased glomerular filtration suggest enhanced renal calcium reabsorption.Objective: To investigate the impact of acromegaly on phosphocalcium metabolism.Design: Prospective sequential study (ClinicalTrials.gov Identifier: N...

ea0029p785 | Endocrine tumours and neoplasia | ICEECE2012

Mitochondrial respiratory chain defects: a novel molecular mechanism of Mitotane for treatment of Adrenocortical Carcinoma

Hescot S. , Slama A. , Paci A. , Remy H. , Chadarevian R. , Trabado S. , Lombes A. , Young J. , Baudin E. , Lombes M.

Mitotane (o,p’DDD) represents the most effective treatment of adrenocortical carcinoma (ACC). However, molecular mechanisms of mitotane action remain poorly understood. Mitochondrial (mt) impact of mitotane has previously been suggested but not yet fully validated. We investigated functional consequences of mitotane exposure on mitochondrial steroidogenesis, respiratory chain activity and biogenesis, using human adrenocortical secreting H295R and non-secreting SW13 cells....