hrp0082p3-d3-646 | Autoimmune Endocrine Disease | ESPE2014

Hypothyroidism in Anorexia Nervosa due to Primary Autoimmune Pathogenesis

Chidanandaswamy Rajesh , Skae Mars

Background: Anorexia nervosa (AN) is associated with a number of endocrine abnormalities including a low serum free thyroxine level. Hypothyroidism in AN is a recognised condition which is associated with a low normal free thyroxine and triiodothyronine levels (FT4, FT3) with an elevated reverse T3 (rT3). Serum TSH levels are normal or slightly reduced, suggesting a hypothalamic origin to the suppressed thyroid function which is norm...

hrp0086p1-p126 | Bone & Mineral Metabolism P1 | ESPE2016

Impact of Intercurrent Illness on Calcium Homeostasis and Hypoparathyroidism Management

Chinoy Amish , Skae Mars , Babiker Amir , Mughal Zulf , Padidela Raja

Background: Hypoparathyroidism is typically managed with calcitriol/alfacalcidol. Close monitoring of serum calcium is required as under-treatment causes symptomatic hypocalcaemia while over-treatment will cause nephrocalcinosis. We report three cases who demonstrated resistance to treatment during an intercurrent illness, necessitating increase in medication doses and monitoring.Objective/hypotheses/method/results: Case series Case 1: Two-month...

hrp0089p1-p225 | Sex Differentiation, Gonads and Gynaecology or Sex Endocrinology P1 | ESPE2018

Living with Clitoromegaly: Aqualitative Interview Study of Parent’s Responses to Clitoromegaly in Congenital Adrenal Hyperplasia (CAH) with or Without Appearance Altering Surgery

Alderson Julie , Nicoll Nicky , Thornton Maia , Jones Julie , Skae Mars , Crowne Elizabeth

Controversy continues regarding surgery in infancy to address atypical genitalia in girls with CAH and other Disorders of Sex Development. There is no consensus to surgical approach. Interest in outcomes of the range of surgical and non-surgical interventions for genital diversity is growing. It is widely acknowledged that the multi-professional management to promote long term psychosocial adaptation of the child based partly on confident parenting is essential. We conducted a...

hrp0089p1-p226 | Sex Differentiation, Gonads and Gynaecology or Sex Endocrinology P1 | ESPE2018

‘You Can Put Ideas into Their Heads’: Parental Concerns about Children’s Participation in DSD Research

Alderson Julie , Nicoll Nicky , Thornton Maia , Jones Julie , Skae Mars , Crowne Elizabeth

It is acknowledged that children should collaborate in research about their health conditions, and DSD research has been criticised for promoting views of parents and health professionals. However parents are concerned about professionals talking to children about sensitive subjects including fertility and sexual activity. Children may have little experience of talking about their sex development. This makes direct research involving children with DSD particularly challenging....

hrp0086p1-p555 | Perinatal Endocrinology P1 | ESPE2016

Islet of Langerhans in Congenital Hyperinsulinism in Infancy are Disrupted and with Decreased Expression of Collagen (IV) α1 Chain in Basement Membranes

Mal Walaa , Salomon-Estebanez Maria , Padidela Raja , Skae Mars , Craigie Ross , Rigby Lindsey , Cosgrove Karen , Banerjee Indi , Dunne Mark

Background: Congenital hyperinsulinism of infancy (CHI) is the most common cause of severe hypoglycaemia in children. Although CHI arises from mutations in KATP channels which lead to inappropriate insulin secretion, CHI it also is associated with marked changes in islet organization.Aims and objectives: Our aim was to investigate the structure and composition of the islet capsule in CHI and age-matched control tissue.Me...

hrp0084fc9.2 | Beta cell disorders | ESPE2015

A Novel Source of Mesenchymal Stem Cells Lines from the Human Neonatal Pancreas of Patients with Congenital Hyperinsulinism in Infancy

Kellaway Sophie , Mosinska Karolina , Han Bing , Mohammad Zainab , Rigby Lindsey , Skae Mars , Padidela Raja , Banerjee Indi , Cosgrove Karen , Dunne Mark

Background: Congenital hyperinsulinism in infancy (CHI) is a neonatal disorder of uncontrolled insulin release leading to profound hypoglycaemia. In addition to defects in pancreatic β-cell function, we have recently demonstrated that the CHI pancreas is highly proliferative, with rates of proliferation up to 14-fold higher than in age-matched controls.Objective and hypotheses: As patients require pancreatectomy to alleviate hypoglycaemia, our aim w...

hrp0084fc9.3 | Beta cell disorders | ESPE2015

Failure to Terminate Cell Proliferation Contributes to the Pathobiology of Congenital Hyperinsulinism in Infancy

Han Bing , Mohammad Zainab , Rigby Lindsey , Craigie Ross , Skae Mars , Padidela Raja , Cheesman Edmund , Cosgrove Karen , Banerjee Indi , Dunne Mark

Background: Diffuse congenital hyperinsulinism in infancy (CHI-D) mainly arises from mutations in KATP channel genes. In addition, there are also several reports of increased cell proliferation in CHI-D. We hypothesised that the higher rates of proliferation in CHI-D are as a consequence of failure to terminate proliferation in the neonatal period.Objective and hypotheses: To test this we examined the proliferative index (PI) of CHI-D tissue a...

hrp0086rfc10.6 | Perinatal Endocrinology | ESPE2016

Increased Islet Cell Neogenesis and Endocrine Cell Differentiation in Congenital Hyperinsulinism in Infancy

Hardwick Elise , Han Bing , Salomon-Estebanez Maria , Padidela Raja , Skae Mars , Craigie Ross , Cosgrove Karen , Banerjee Indi , Dunne Mark

Background: Congenital Hyperinsulinism in Infancy (CHI) is characterised by inappropriate insulin release. We currently attribute hypoglycaemia to β-cell dysfunction because of defects in the ion channel genes ABCC8 or KCNJ11. However, the CHI pancreas is also associated with inappropriate expression of foetal-like transcription factors and enhanced cell proliferation.Hypothesis: As the CHI pancreas bears similarities to the foetal pancreas, we hypo...

hrp0086p1-p551 | Perinatal Endocrinology P1 | ESPE2016

Enhanced Mitochondrial Densities Associate with the Pathobiology of β-Cells in Congenital Hyperinsulinism in Infancy

Han Bing , Salomon-Estebanez Maria , Padidela Raja , Skae Mars , Kadler Karl , Cosgrove Karen , Banerjee Indi , Dunne Mark

Background: Congenital hyperinsulinism in infancy (CHI) is associated with inappropriate insulin release from β-cells. This is causally linked to defects in the ion channel genes ABCC8 and KCNJ11 regulating insulin, but little is known about the metabolic support for sustained insulin exocytosis.Objective and hypotheses: We hypothesised that inappropriate insulin release in CHI would require sustained ATP generation by enhanced mit...

hrp0084fc9.1 | Beta cell disorders | ESPE2015

Islet δ-Cells Contribute to the Pathobiology of Atypical Congenital Hyperinsulinism

Han Bing , Bourke Siobahn , Mohammad Zainab , Craigie Ross , Skae Mars , Cheeseman Edmund , Banerjee Indi , Cosgrove Karen , Dunne Mark

Background: Atypical forms of congenital hyperinsulinism in infancy (CHI-A) represent a novel subgroup of patients who present later in the neonatal period; have poor responses to medical intervention; an unremarkable histopathology and no known genetic cause of disease.Objective and hypotheses: To compare the expression profiles of insulin and somatostatin in islets from patients with CHI-A, diffuse CHI (CHI-D) and age-matched control tissue.<p clas...