Searchable abstracts of presentations at key conferences in endocrinology

ea0066p75 | Pituitary | BSPED2019

Growth and growth hormone abnormalities in bartter syndrome types 3 and 4

Prentice Philippa , Bockenhauer Detlef , Dattani Mehul

Introduction: Bartter Syndrome types 3 and 4 (BS3/4) are rare tubulopathies, caused by CLCNKB and BSND mutations, which affect chloride channel function in the loop of Henle and distal convolute. Historically, with late presentation and poor disease control, patients had severe short stature. Multiple case reports have also found associations between BS3/4 and Growth Hormone deficiency (GHD). Our aim was to investigate growth and presence of GHD in a large co...

ea0066oc5.4 | Oral Communications 5 | BSPED2019

Tolvaptan for hyponatraemia in infants with brain tumours

Gopal-Kothandapani Jaya Sujatha , Bockenhauer Detlef , Spoudeas Helen

Background: Syndrome of Inappropriate Antidiuretic Hormone secretion (SIADH) is a well-recognized complication of intracranial tumours (ICT). Fluid restriction as treatment for SIADH is challenging in infants since it is coupled with calorie restriction. Moreover, it may conflict with chemotherapy-associated hyperhydration protocols. Existing evidence on the use of the type-2 vasopressin receptor antagonist (Tolvaptan) for refractory SIADH in infants and young children is limi...

ea0031p58 | Clinical practice/governance and case reports | SFEBES2013

De Novo HNF1b mutation as a cause for chronic treatment-resistant hypomagnesaemia

Stiles Craig , Kumar Ajith , Bockenhauer Detlef , Korbonits Marta

A 29y female presented with an 8y history of hypomagnesaemia. It was noted incidentally when hospitalised with mumps-related pancreatitis. Subsequently symptomatic hypomagnesaemia, with headaches and lethargy, was treated with magnesium glycerol phosphate 4 mg TDS, but she remained symptomatic with occasional need of IV Mg2+. It was thought that she was poorly compliant with her oral Mg2+ supplements. At presentation to our department for follow-up of her...

ea0051oc3.2 | Oral Communications 3 | BSPED2017

A novel syndrome of nephrogenic syndrome of inappropriate antidiuresis, precocious puberty, parathyroid insensitivity associated with a novel GNAS mutation, p.F376V

Tully Ian , Kiff Sarah , Bockenhauer Detlef , Wilson Louise , Allgrove Jeremy , Gregory John , Dattani Mehul

Introduction: Mutations in GNAS, affecting the alpha subunit of heterotrimeric G proteins, are implicated in several endocrinopathies. We report a patient with features of both receptor activation and inactivation in association with a novel de novo heterozygous somatic mutation.Case report: Asymptomatic hyponatraemia (Na 117-123) was identified in a male neonate, and treated with sodium supplementation and fludrocortisone. Biochemical data were...

ea0045p44 | Gonadal, DSD and reproduction | BSPED2016

Co-existence of congenital adrenal hyperplasia and bartter’s syndrome due to maternal uniparental isodisomy of HSD3B2 and CLCNKB mutations

Giri Dinesh , Viseras Irene , Bockenhauer Detlef , Deshpande Charu , Achermann John , Taylor Norman , Rumsby Gill , Senniappan Senthil , Ajzensztejn Michal

Introduction: We present a patient with co-existence of 3β-Hydroxysteroid dehydrogenase type 2 deficiency (HSD3B2) the rarest form of Congenital Adrenal Hyperplasia (CAH) and Bartter Syndrome (hypokalaemic alkalosis secondary to hyperaldosteronism), a unique dual combination of opposing pathologies that has never been reported in the literature.Case Report: A female infant (46XX) born at 34/40 weeks gestation, weighing 2.67 Kg (−1.54 SDS) to n...

ea0034p14 | Bone | SFEBES2014

Clinical studies of adaptor protein-2 sigma subunit mutations causing familial hypocalciuric hypercalcaemia type 3 reveal genotype–phenotype correlations and effectiveness of cinacalcet

Hannan Fadil , Rogers Angela , Howles Sarah , Cranston Treena , McKenna Malachi , Richardson Tristan , Babinsky Valerie , Reed Anita , Thakker Clare , Bockenhauer Detlef , Brown Rosalind , Cook Jacqueline , Darzy Ken , Ehtisham Sarah , Graham Una , Hulse Tony , Hunter Steven , Kumar Dhavendra , McKnight John , Morrison Patrick , Mughal Zulf , Pearce Simon , Scheers Isabelle , Wang Timothy , Whyte Michael , Nesbit M Andrew , Thakker Rajesh

Familial hypocalciuric hypercalcaemia (FHH) comprises three types: FHH1, FHH2, and FHH3, which are due to mutations of the calcium-sensing receptor (CaSR), G-protein α 11 subunit (Gα11), and adaptor protein-2 sigma subunit (AP2σ), respectively. The aims of this study were: to assess for genotype–phenotype correlations among the three reported FHH3-causing AP2σ mutations, which all involve the Arg15 residue, and comprise Arg15Cys, Arg15His, and Arg15Leu...

ea0034p15 | Bone | SFEBES2014

Identification of 12 adaptor protein-2 sigma 2 subunit mutations in familial hypocalciuric hypercalcaemia type 3 and expansion of phenotypic spectrum.

Rogers Angela , Hannan Fadil M , Howles Sarah A , Cranston Treena , Thakker Clare E , Bockenhauer Detlef , Brown Rosalind , Cook Jacqueline A , Darzy Ken , Ehtisham Sarah , Hulse Tony , Kumar Dhavendra , McKenna Malachi , McKnight John , Mughal Zulf , Pearce Simon H , Richardson Tristan , Scheers Isabelle , Wang Timothy , Nesbit M Andrew , Thakker Rajesh V

Familial hypocalciuric hypercalcaemia (FHH) is an autosomal dominant disorder characterized by hypercalcaemia and inappropriately low urinary calcium excretion, and is occasionally associated with acute pancreatitis. FHH can be classified into three types: FHH type 1, caused by loss-of-function mutations of the calcium-sensing receptor (CaSR), which accounts for >65% of cases; FHH type 2, due to loss-of-function mutations of the G-protein α 11 subunit (Gα11), of ...