ESPE Abstracts

Objective: We aim to investigate the association among progranulin (PGRN), high-mobility group box 1 (HMGB1), and obesity related markers in young rat model of high fat diet-induced obesity.Materials and Methods: 20 Male Sprague-Dawley (SD) rats at the age of 21 days were divided into two groups randomly. The rats were fed with normal diet (NC group) or high-fat diet (OB group). The NC group and OB group were sacrificed ...

Introduction: Primrose syndrome was defined in 1982. It is characterized by characteristic facial appearance, macrocephaly, global developmental delay, intellectualdisability and calcification in the outer ear. It occurs with loss-of-function mutations in the ZBTB20-gene. This gene is a transcriptional gene suppressor regulator and is effective on neurogenesis, glucose homeostasis, and postnatal growth. Here, a case with Primrose syndrome will be presented.</p...

Background: The onset of puberty is a complex biological process involving numerous factors under the control of the neuroendocrine pathways that are regulated as part of the hypothalamus-pituitary-gonadal (HPG) axis. The key step in puberty onset is activation of gonadotropin releasing hormone (GnRH) pulses and secretion. Recent evidence suggests that the Lin28/let7 pathway might be a critical regulator of GnRH release and that it might play an important role...

Introduction: Complex and ordered intracellular signal pathways play a significant role in sex determination in mammals, mediating the balance of gonadal development. A major pathway involved in the regulation of the male development is mitogen-activated protein kinase (MAPK) signaling pathway. To date, mutations of MAP3K1 gene have been found to account for approximately 15%-20% of 46, XY gonadal dysgenesis (46, XY GD)....

Background: Melatonin is known to regulate a variety of biological processes. The investigation and application of melatonin in oral development have got a lot of attention. The study was performed to investigate the effects of melatonin on development of human dentin formation.Objective and hypotheses: To investigate the role of melatonin in proliferation and differentiation of human dental pulp cells(hDPCs).Method: HDPCs were obt...

Background: Now in many causes of precocious puberty, thinking of environmental endocrine disruptors (EDCs) is one of the causes. Bisphenol A (BPA), as a kind of environmental endocrine disruptors, can interfere with normal endocrine activities. But up to now, there is few reports of the influence of BPA in premature thelarche (PT) of below 2 years girls.Objective and hypotheses: To investigate the association between BPA and premature thelarche in 6 mon...

Autosomal dominant pseudohypoparathyroidism type-Ib is characterized by renal parathyroid hormone resistance, with resultant hypocalcemia and hyperphosphatemia. This disorder is associated with an isolated loss of methylation at GNAS exon A/B and most patients carry maternal microdeletions in the neighboring STX16 gene. The shortest deletion overlap is a 1.2-kb region spanning STX16 exon 4 and thought to harbor a cis-acting element regulating GNAS A/B methylation. However, abl...

Objective: To explore the status and the main influencing factors of peripheral nerve conduction dysfunction in Chinese children and adolescents with type 1 diabetes mellitus (T1DM).Methods: Nerve electrophysiological indicators including amplitude, latency and conduction velocity of median nerve, ulnar nerve, superficial peroneal nerve, sural nerve, common peroneal nerve and tibial nerve were collected, and the results ...

Objective: To determine the mutation in the SRY gene in a 46,XY complete gonadal dysgenesis patient with bilateral gonadoblastoma and coexisting dysgerminoma. Evaluate the functional consequence of mutated SRY gene in the tumor risk of 46,XY DSD.Methods and Materials: The proband was a 13-year-old girl who was admitted for examination due to undeveloped secondary sexual characteristics. She had no breas...

Objectives: Premature ovarian insufficiency (POI) is mostly considered X chromosome abnormalities in child. Few of POI cases are associated with autosomal abnormalities. This study was to identify new genes involved POI in three girls.Methods: Three girls who came to the hospital because of no menstruation were investigated. They were 14, 15, and 14 years old. They did not find any breast tissue in their physical examination. Clinical data, sex hormones,...