ESPE Abstracts

Vitamin D dependency rickets type 1B (VDDR-1B) is a rare condition classified as rickets due to inadequate 25-hydroxylation of vitamin D. In this study, we describe rickets and loss-of-function CYP2R1 mutations in 6/10 individuals tested from two unrelated families. Five patients in family 1 (F1) have homozygous L99P mutations; while one member of family 2 (F2) has novel homozygous mutations at G42_L46del insR. The mutations, as well as another variant M248I found in ...

Background: Type 1 Diabetes (T1D) is associated with increased fracture risk.Aim: Understand the association between glycaemic control and bone health in children with T1D.Method: Children (n, 32) with T1D and a median (range) age of 13.7 years (10.4,16.4), were recruited to study bone mineral content (TB & LS) and body composition by DXA. All data were corrected for size. Vitamin D, Bone alkaline phosphatase (BAP) and...

Background: Nearly 10% of paediatric onset diabetes are auto-antibodies negative. Among them monogenic diabetes are frequently under-diagnosed. The major increase in the prevalence of childhood obesity is misleading with a risk of confusion between type 2 diabetes (T2D) and monogenic causes of diabetes.Objective and hypotheses: To report on two informative families with negative auto-antibodies childhood-onset diabetes cases.Method...

Objective: To evaluate the pancreatic reserve and metabolic control in our patient diagnosed of type 1 diabetes over the last 20 years.Method: Retrospective cohort study of all patients <15 years, diagnosed in our community between 01/01/1995 and 31/12/2014. Variables: gender, age at diabetes debut, age at study, c-peptide after stimulation with glucagon at debut and 1 month after, HbA1c at debut, 1 month, 1 year, 2 years, 5 and 10 years of debut. Co...

Background: Mammary duct ectasia is a bening breast condition which affects primarily middle-aged to elderly women. However, it can occurs wherever there is breast ductal epithelium.Case presentation: A 9-years-old boy was referred to the regional paediatric endocrine clinic from the General Practicioner due to gynaecomastia. Pubic hair development started at the age of 8. Personal and family history were unremarkable except for a history of coping with ...

Iodide (I−) transport defect (ITD) is an autosomal recessive disorder caused by the inability of the thyroid follicular cell to actively accumulate iodide. Active I− accumulation is mediated by the Na+/I− symporter (NIS), an integral plasma membrane glycoprotein located on the basolateral surface of thyrocytes. The diagnostic criteria for ITD include a variable degree of hypothyroidism and goiter, low to absent thyr...

Background: Gliomas are the most common subgroup of CNS tumours in children. Histologic grading is a means of predicting the biological behavior of these tumours and survival is strongly correlated with tumour gradation. The IGF system of ligands and receptors are known to play an important role in both normal and neoplastic growth. Recently, nuclear translocation of the type 1 IGF1R has been demonstrated in tumour tissues. Although the IGF1R expression has been described in C...

Background: Adipose tissue is an important endocrine organ. Its secretion profile is robustly changed in the context of obesity fueling the development of comorbidities such as insulin resistance, diabetes mellitus type 2, and atherosclerosis. We have recently shown that the adipose tissue expression of the death ligand TNF-Related Apoptosis-Inducing Ligand TRAIL and its receptors is upregulated in obesity.Objective and Hypotheses: In this project, we in...

Background: The aim of this study was to examine plasma visfatin levels in pediatric patients with type 1 diabetes (T1D). Visfatin, a novel adipokine, is predominantly secreted by visceral adipose tissue and seems to have insulin-mimetic effects. It has not been studied in children and adolescents with type 1 diabetes (T1D) yet.Objectives: We studied 124 subjects; 62 patients with T1D: 31 girls, mean age 13.7±3.7 years; mean duration of diabetes 5.9...

Background: Obesity is tightly associated with adipose tissue inflammation. Tumor necrosis factor-alpha (TNFα) has been identified as a key player in this inflammatory process and has been linked to the development of obesity-associated insulin resistance. Our group studies the involvement of TNF superfamily members in obesity-induced alterations in adipose tissue.Objective and hypotheses: Here, we aimed to identify the effects of the TNF superfamil...