Searchable abstracts of presentations at key conferences in endocrinology

ea0085oc1.1 | Oral Communications 1 | BSPED2022

Defects in QSOX2, a novel regulator of STAT5B nuclear import and transcriptional activity, lead to severe post-natal growth restriction

Maharaj Avinaash , Andrews Afiya , Chatterjee Sumana , Hwa Vivian , Storr Helen

Background: Growth Hormone Insensitivity (GHI) is characterised by short stature and functional IGF-I deficiency associated with normal/elevated GH levels. Marked genetic and phenotypic heterogeneity exist, and heritable defects in GH-IGF-I axis associated pathways account for mild-moderate to severe GHI. We report non-consanguineous twin brothers who present with short stature and bi-allelic mutations in QSOX2 encoding a nuclear membrane protein. Genome-wide associat...

ea0078OC5.1 | Oral Communications 5 | BSPED2021

Evaluating UK Referral Criteria for Children with Short Stature in a Tertiary Paediatric Endocrinology Centre

White Gemma , Cosier Shakira , Andrews Afiya , Willemsen Ruben H. , Savage Martin O. , Storr Helen L.

Background: Childhood growth monitoring aims to identify growth failure and detect underlying pathology. According to UK guidance, height <-2.7 standard deviation score (SDS) (<0.4th percentile) is used as the referral threshold. Additional referral criteria include height deficit (HSDS-target height SDS) <-2.0 and height velocity (HV) SDS <-1.3. Lack of routine HV and mid-parental height calculation, combined with stricter cut-offs compared to other European c...

ea0078OC6.1 | Oral Communications 6 | BSPED2021

Novel dominant negative GH receptor variants provide important insights into GH receptor physiology

Andrews Afiya , Cottrell Emily , Maharaj Avinaash , Ladha Tasneem , Williams Jack , Metherell Louise A , McCormick Peter J , Storr Helen L

Background: Growth hormone insensitivity (GHI) is a continuum defined by normal/elevated growth hormone (GH), low IGF-I levels and growth restriction. Non-classical/mild-moderate GHI is poorly characterised and is frequently underdiagnosed. Heterozygous dominant negative (DN) gene variants located in the regions encoding the intracellular/transmembrane domains of the GH receptor cause a ‘non-classical’ GHI phenotype.Hypothesis/Objective: Detail...

ea0082oc1 | Oral Communications | SFEEU2022

Genetic analysis of patients with undiagnosed short stature identified novel dominant negative GH receptor variants which provide important insights into GHR physiology

Andrews Afiya , Cottrell Emily , Maharaj Avinaash , Ladha Tasneem , Williams Jack , A Metherell Louise , J McCormick Peter , Storr Helen L

Case history: Two unrelated male patients were referred for evaluation of short stature. The first patient aged 16.5 years, had a birth weight of 2.6 kg at term (BWSDS -2.4), height 153 cm (HSDS -3.2) at referral and normal BMI SDS of 0.6. He had early postnatal hypoglycemia, which was conservatively managed, but no other significant clinical history. He had relative macrocephaly and disproportionate short stature. His mother was also short with a similar phenotype (height 147...

ea0085p46 | Pituitary and Growth 1 | BSPED2022

A rare heterozygous IGFI variant impairing IGF-I cleavage and causing postnatal growth failure: a novel disease mechanism offering insights into IGF-I physiology

Cottrell Emily , Andrews Afiya , Williams Jack , Chatterjee Sumana , Edate Sujata , Metherell Louise A. , Hwa Vivian , Storr Helen L.

Background: Pathogenic IGFI gene mutations causing childhood growth failure are extremely rare. Only five autosomal recessive mutations, one IGFI copy number variant and two heterozygous frameshift mutations are reported. Heterozygous missense IGFI mutations haven’t previously been described.Objectives: To identify and functionally characterise a novel missense IGFI variant in a patient with postnatal growth failu...

ea0058p071 | Diabetes | BSPED2018

Standardising the management of hypoglycaemia in paediatric patients with type 1 diabetes mellitus

Andrews Afiya , McLaughlin Catarina , Coldwell Sue , Budd Louise , Remorino Rowena , Irvine Vanessa , Hawes Dorothy , Ford Anne , Watson Helen , Ofstad Tom , Wilding Mike , Hillyer Emily , Edwards Jane , Davies Sue

Background: During 2017–2018 the diabetic team at our Foundation Trust participated in the RCPCH diabetes quality improvement collaborative to support work in reducing the mean HbA1c of our patient cohort. It is widely acknowledged that a consistent approach is vital in working towards HbA1c targets. One area of focus of our quality improvement work was to standardise the management of hypoglycaemia. As a team we decided to follow the BSPED hypoglycaemia guideline (2016) ...