hrp0095p1-423 | Bone, Growth Plate and Mineral Metabolism | ESPE2022

A case report investigating hereditary hypophosphataemic rickets with hypercalcuria (HHRH), a suspected novel mutation and the FGF23 ‘red herring’

Hester Holly , Mushtaq Talat

Objective: To explore the clinical manifestation of a case of hereditary hypophosphataemic rickets with hypercalcuria (HHRH), describe a potentially novel mutation and identify key learning points in the diagnosis and management.Background: Inherited forms of hypophosphoatameic rickets such as XLH have phosphaturia, often mediated by elevated FGF-23 levels and low or inappropriately normal 1,25 OHD levels. Conversely, in...

hrp0095p1-253 | Diabetes and Insulin | ESPE2022

Incidence and risk factors for paediatric diabetic retinopathy: case control for a tertiary hospital in Leeds, United Kingdom

Hester Holly , Adams Elizabeth , Kelleher Aoife , Yong James , Campbell Fiona

Introduction: Diabetic retinopathy is a leading microvascular complication and preventable cause of vision loss. NHS diabetes eye screening program (DESP) assesses for early signs, with population prevalence between 3.5% and 24.2%. Understanding the factors involved is important to reduce morbidity.Aims and objectives: Establish clinical characteristics and modifiable risk factors for patients with retinopathy identified...

hrp0095p2-2 | Adrenals and HPA Axis | ESPE2022

Retrospective cross-sectional study reviewing local practice in assessment of adrenal axis at a tertiary children’s hospital

Hester Holly , Hachemi Soraya , Amin Nadia , Alvi Sabah

Introduction: There is considerable variation in practice when assessing adrenal function in adrenal insufficiency; duration of glucocorticoid defined to confer risk, early morning cortisol assay (EMC), Synacthen test (ST) - both low dose (LDST) (1microgram) or standard dose (SDST) (36microgram/kg [maximum 250micrograms]) and symptomatology. At our tertiary children’s hospital, even between departments, there is variation in those identified as being at ...

hrp0084p3-1085 | Perinatal | ESPE2015

Circadian Variation in Cortisol Concentration in Mother’s Milk

van der Voorn Bibian , Heijboer Annemieke , de Waard Marita , Verheijen Hester , Rotteveel Joost , Finken Martijn

Background: In mammals, maternal glucocorticoids are transmitted through breast milk, particularly under stressful circumstances. In humans, it is unclear whether milk cortisol levels are dependent on stressful perinatal circumstances, such as preterm birth.Objective and hypotheses: Our aim was to compare cortisol concentrations in breast milk of mothers of very preterm infants (GA <32 weeks) to breast milk cortisol concentrations of mothers of full-...

hrp0084p2-401 | GH &amp; IGF | ESPE2015

GRB10 Knockdown in Zebrafish is Associated with Decreased Weight-to-length Ratio without Alterations in AKT and ERK Activity: A Model to Study Human Growth Regulation

De Leonibus Chiara , Broadbent Jack , Murray Philip , Whitehead Joseph , Hurlstone Adam , Shiels Holly , Clayton Peter , Stevens Adam

Background: In humans GRB10 negatively regulates GH and IGF1 signaling predominantly via altering phosphorylation of PI3K/mTOR/AKT and MEK/ERK pathways which relate to both growth and metabolic function. We have previously shown that Grb10 knockdown in Zebrafish results in overgrowth with an increase in length and head size. However the impact on weight in relation to length has not been assessed.Objective: To develop a model t...

hrp0097p1-480 | Fetal, Neonatal Endocrinology and Metabolism | ESPE2023

Grb10a Knockdown in Early Life Permanently Alters Growth, Cardiometabolic Phenotype, and the Co-ordination of the Whole Transcriptome in Zebrafish

Evans Bridget , Garner Terence , De Leonibus Chiara , Wearing Oliver , Shiels Holly , Hurlstone Adam , Clayton Peter , Stevens Adam

The ‘Developmental Origins of Health and Disease’ (DOHaD) hypothesis encapsulates the relationship between pre- and perinatal exposures causing altered growth and the development of later life disease. Mediators of this relationship have not been fully defined. We have used zebrafish [ZF] (Danio rerio) as a potential model for DOHaD, modifying expression of grb10a, an adapter protein that interacts with the insulin and IGF receptors, to act as a negative r...

hrp0095p1-266 | Fat, Metabolism and Obesity | ESPE2022

Changes in hypothalamic functional connectivity in the brain following childhood-onset craniopharyngioma

Hinton Elanor , Elsworth Rebecca , Bedford Holly , Hawton Katherine , Narayan Kruthika , Naeem Nimra , Elson Ruth , Taylor-Miller Tashunka , Lithander Fiona , Hamilton-Shield Julian , Crowne Elizabeth

Background: Craniopharyngioma is a non-malignant, embryological brain tumour in the sellar and parasellar region. Hypothalamic damage is common and accompanied by development of obesity in at least 50% of cases. Mechanisms underlying hypothalamic obesity in craniopharyngioma patients however remain unclear and treatment options are invasive and limited. This feasibility study included a novel application of functional neuroimaging, an established method in obe...

hrp0084p1-101 | Perinatal | ESPE2015

Does Type 1 Childhood Diabetes Start In Utero?

Laron Zvi , Hampe Christiane , Shulman Lester

Background: In the last decades a rapid increase in the incidence of childhood type I diabetes (TIDM) has been reported worldwide. To stop the progressively advancing process immunosuppressive and nutritional trials have been made, but failed. Epidemiological studies by our group performed in several countries have shown that the season during which children who developed TIDM were born differed from that in the general population; suggesting that the initial trigger for TIDM ...

hrp0095p2-34 | Bone, Growth Plate and Mineral Metabolism | ESPE2022

Optimal 25-OH-Vitamin D level in children derived from metabolic parameters

Gillis David , Hefter Ari , Edri Edri Shalom , Strich David

Context: Optimal levels of 25-OH-Vitamin D (25OHD) for children are unknown. Prevalent population levels of 25OHD are likely to be sub-optimal since sun exposure is reduced in modern living.Objective: To deduce recommended levels of 25OHD by testing, in children, the level at which 25OHD optimally effects calcium, phosphate and parathyroid hormone levels in a population-based data.Design:</...

hrp0094p2-82 | Bone, growth plate and mineral metabolism | ESPE2021

Vitamin D - What is the Optimal Level in the Pediatric Population

Gillis David , Hefter Ari , Edri Shalom , Strich David ,

Introduction: The optimal level of 25-OH-Vitamin D in children is not clear since most studies have been performed on adults. Creating normal levels is problematic since the recommended level of vitamin D is based on the effect of vitamin D on other parameters and not upon its level in the population.Methods: This is a "big-data" study in which we analyzed Vitamin D tests from 49,935 children sampled in Clalit He...