ESPE Abstracts

Background: Adults with CF show a higher rate of osteoporosis compared to healthy adults. Achieving proper bone mass is a process starting in childhood. We aimed to evaluate the prevalence of decreased bone mineral density (BMD), changes during puberty and risk factors for low BMD in children and adolescences with CF in a large Dutch cohort.Patients and methods: A retrospective observational cohort study was performed in...

Loss of function mutations in SGPL1 (sphingosine-1-phosphate lyase) are associated with a syndromic form of primary adrenal insufficiency. A third of affected male individuals also have evidence of early primary gonadal insufficiency, with an undervirilised phenotype at birth. SGPL1 carries out irreversible breakdown of the signalling molecule sphingosine-1-phosphate (S1P) and deficiency leads to accumulation of S1P and other upstream sphingolipid intermediates to var...

Disorders of sexual development can be suspected from birth if there is genital ambiguity, but sometimes the diagnosis in girls is made at puberty due to lack of pubertal development or primary amenorrhea. Making the correct diagnosis has its relevance in sexual identity, in the initiation of the correct hormone replacement therapy and in its possible association with malignant gonadal tumors. We describe 2 cases with unusual presentation of girls with female phenotype and 46X...

Introduction: ADH1 is caused by Calcium Sensing Receptor (CaSR) gain of function (GoF) variants, leading to hypoparathyroidism, hypocalcaemia, seizures, hyperphosphatemia, hypomagnesaemia and severe hypercalciuria. Conventional treatment (Alphacalcidol, Calcium) predisposes to nephrocalcinosis and renal impairment and may not reduce seizures. We previously reported that CSPI by insulin pump effectively increased serum calcium concentrations and reduced seizure...

Background: Children conceived after assisted reproductive technology (ART) with frozen embryo transfer (FET) are more often born large-for-gestational age (LGA) while children born after fresh embryo transfer (fresh-ET) are at risk of being small-for-gestational age (SGA). LGA or SGA children are at increased risk of obesity, diabetes and cardiovascular disease later in life. The long-term cardio-metabolic health of children born after ART is scarcely explore...

Background: The hypothalamus-pituitary-adrenal (HPA) axis displays a diurnal rhythm, peaking in the morning and with a nadir at night. However, not much is known about the development of the HPA- axis, although strikingly some evidence suggests that a rhythm with a peak in the afternoon is already present antenatally. We aimed to describe HPA-axis activity at age 1 month as well as study possible influencing factors.Methods</stro...

Objectives: The homozygous GHR pseudoexon (6ψ) mutation leads to aberrant splicing of the GHR gene with clinical and biochemical heterogeneity. We investigated whether the phenotypic variability could be explained by transcript heterogeneity i.e. ratio of abnormal (6ψ GHR) to normal (WT GHR) transcripts and/or the presence of concurrent defects in other short stature (SS) genes.Methods: 6&#968...

Background: Obesity in females is often associated with metabolic complications and hyperandrogenism but the role of adipose tissue (AT) in androgen synthesis remains unclear.Aims/Objectives: Employing human subcutaneous and visceral AT and cultured adipocytes, we studied whether AT could be a source of androgens promoting hyperandrogenism in lean and especially in obese females.Methods</st...

Introduction: Turner's syndrome (TS) is associated with several manifestations the most frequent being short stature and hypogonadism. Some authors (Nadeem, 2012; Bakalov, 2008) reported that individuals with TS have increased risk of fractures, but the etiology and mechanism of bone fragility have not been yet fully elucidated and may be exacerbated by hormonal factors (Cintron, 2017; Soucek, 2015). Bone densitometry (BD) through the emission of double en...

Objective: Recent studies have suggested earlier onset of pubertal development in boys. As assessment with orchidometer tends to overestimate true testicular volume (TV), and measurements based on ultrasound (US) have been proposed as a more reliable method, we present US based references in 6-16 year-old Norwegian boys. Our results are compared with data from Europe and the United States (U.S.) in order to establish evidence for an ongoing secular trend in ma...