ESPE Abstracts

Background: Most published studies on 46,XY DSD focused on genetic findings without association with biochemical work-up.Objectives: To retrospectively analyze the clinical and genetic findings of a large cohort of 46,XY DSD patients.Methods: 285 non-syndromic 46,XY DSD individuals (192 sporadic and 89 familial cases) were studied. LH, FSH, testosterone (T), androstenedione (A) wer...

Introduction: In various forms of XY disorders/differences of sex development (DSD) the risk of germ cell cancer is increased. In the 2006 DSD consensus statement this risk was estimated to be intermediate in 17beta-HSDtype3 deficiency (HSD17B3D) and low in 5alpha-reductasetype2 deficiency (SRD5A2D) but based on very few cases. Few studies have been performed since; therefore we aimed to review gonadal pathology in an international cohort with these conditions...

Background: The phenotypic manifestations in the 45,X/46,XY karyotype is diverse and there are challenges in management due to this diversity.Objective and hypotheses: The aim of this study was to describe the clinical spectrum of 45,X/46,XY mosaicism and variants diagnosed in childhood.Method: A retrospective review of 20 patients with 45,X/46,XY (n=7) and its variants ((45,X/46,X,der(Y) (n=12)) and 46,X,der(X),t...

Background: The first three children reported to have biallelic mutations in RNPC3 presented with growth hormone (GH) deficiency and pituitary hypoplasia (MIM#618860). RNPC3 codes for a minor spliceosome protein required for U11/U12 small nuclear ribonucleoprotein formation and splicing of U12-type introns. The underlying mechanism causing GH deficiency in these patients is not fully understood. Moreover, whether the association of further ho...

In CAH due to 21-OH deficiency, phenotype-genotype correlation is known. However, the same genetic events may cause different clinical forms of the disease. A case of CAH associated with the P30L in the CYP21A2 gene in presented. The Caucasian girl was born normally and growing healthy till the age of 3.y., when her mother noticed pubic hair growth; at the age of 4 she had acne and an increasing sweating. At 6 y. of age, she was brought to paediatric endocrinologist f...

Background: Birth chest circumference (BC) may be related to Insulin-like-Growth-Factor-I blood serum levels (IG1) in the human newborn (NWB).Objective and hypotheses: We evaluated the relevance of birth body weight (BW) to birth crown-heel length (BL) ratio (BW through BL, BW/BL) in BC relations to IG1 after control for BW for birth gestational age (GA)<=10th centile (SGA), respiratory oxygen supplementation (O2S) and assisted ventilation of any kin...

Turner syndrome is the most common chromosomal disorder in girls. They present classically short stature and delayed puberty. Turner girls with 45,X karyotype show normal female external genitalia. But Turner patients containing 45,X/46,XY mosaicism, or Sex-determining Region Y(SRY) gene may have mixed gonadal dysgenesis with various external sexual differentiation or pure gonadal dysgenesis. Existence of Y chromosome particles in Turner syndrome implies that they have risk of...

Background: Birth chest circumference (BC) may be related to Insulin-like Growth Factor (IGF)-Binding-Protein-3 blood serum levels (IB3) in the human newborn (NWB).Objective and hypotheses: We evaluated the relevance of birth body weight (BW) to birth crown-heel length (BL) ratio (BW through BL, BW/BL) in BC relations to IB3 after control for BW for birth gestational age (GA)<=10th centile (SGA), respiratory O2 supplementation (O2S), assisted ventila...

Background/objective and hypotheses: Not-brain-related birth body weight (NBBW) relevance to known relationships of birth gestational age (GA) with blood serum IGF binding protein 3 (IB3) was studied in the not-life threatened newborn (NWB).Method: SEX, GA (unit:complete week), postnatal age (PNA; unit:day), birth body weight (BW; unit:g), birth head circumference (HC; unit:cm), BW<10th centile for GA (SGA), caesarean section (CS), predominant oral/e...

Context: Growth analyses have traditionally been done by either non-structural descriptive statistics or by fitting models. While we usually describe height and weight separately, we assume reciprocity of weight and height on each other. We utilize ML to predict ages 7–18 y height based on height and weight data up to age 6y.Methods: After pre-processing the height and weight, primary and secondary features (height SDS, BMI, growth velocity) of 1596...