ESPE Abstracts

Background: The StAR protein is crucial for the transportation of cholesterol to the mitochondria, where it is converted to pregnenolone. Complete loss of StAR protein function impairs adrenal and gonadal steroidogenesis since the fetal period, called classic lipoid adrenal hyperplasia (CLAH). Nonclassic lipoid adrenal hyperplasia (NCLAH) is a recently recognized disorder, with partial StAR protein function, and several mutations causing NCLAH have been reported.<p class="...

Background: Congenital lipoid adrenal hyperplasia is an autosomal recessive adrenal and gonadal steroidogenesis disorder usually caused by a genetic abnormality in the STAR gene encoding the steroidogenic acute regulatory protein (StAR). For 46,XY cases, sex steroid hormone replacement therapy must be initiated together with glucocorticoid and mineralocorticoid treatment.Objective and hypotheses: We present the case of a 30-year-old female with ...

Background: Heterozygous loss-of-function mutations of FGFR1 are known to cause Kallmann syndrome (KS) and isolated hypogonadotropic hypogonadism (IHH). Furthermore, recent studies have also indicated that heterozygous loss-of-function mutations lead to IHH and split hand/foot malformation (SHFM).Objective and hypotheses: The objective of this study was to examine FGFR1 in three Japanese patients with IHH and SHFM.Method: ...

Background: Advances in genetic analysis techniques has greatly contributed to recent discovery of causative genes associated with overgrowth with intellectual disability (OGID). Tatton-Brown-Rahman syndrome (TBRS) (OMIM #615879) was one of them, characterized by tall stature, a distinctive facial appearance, and intellectual disability. This syndrome was first reported in 2014. Thus, long-term clinical courses are unknown. We present our Japanese case with OGID who was diagno...

Background: Gonadal dysfunction is one of the major endocrinological late effects among cancer survivors. Chemotherapeutic agents and radiation are so gonadotoxic that ovarian reserve diminishes. Measurement of anti-müllerian hormone (AMH) concentration is useful as a marker of ovarian reserve or gonadal deficiency in female childhood cancer survivors (CCSs), particularly among patients without high gonadotropin levels.Objective and hypotheses: The ...

Type II collagenopathy is a generic name of the skeletal dysplasia caused by COL2A1 gene, such as achondrogenesis type II, spondyloepiphyseal dysplasia (SEDC), spondyloepimetaphyseal dysplasia (SEMD). Since this is a rare disease, genotype-phenotype characteristics is still unclear. Here, we describe the genotype-phenotype characteristics of four families of type II collagenopathy in our hospital. Family 1: the proband was 2-year-old girl. She showed severe short stat...

Background: While existing guidelines recommend long-term follow-up of childhood cancer survivors (CCS), transitional care among pediatric and adult endocrinologists has not been established in Japan.Objective and Hypotheses: To know the present situation and to cultivate a better understanding, we had conducted a nation-wide survey targeting Japanese pediatric endocrinologists.Method</stro...

Background: While existing guidelines recommend long-term follow-up of childhood cancer survivors (CCS), their fertility has not been clarified in Japan.Objective and hypotheses: To address this issue, we organized a working panel to compile evidence from CCSs. The team consisted of various medical specialists in foundation hospitals.Method: We had conducted the questionnaire surveys targeting pediatric endocrinologists regarding r...

Background: Kawasaki disease (KD) is an acute inflammatory disorder, associated with systemic vasculitis including coronary artery aneurysms (CAA). Treatment with intravenous immunoglobulin (IVIG) can resolve inflammation. However, about 20% patients show resistant to IVIG treatment and some of the cases required additional treatments. Recently, IVIG plus adjuvant glucocorticoid hormones (GC) has been shown to be an effective therapy for these patients, su...

Background: Hypospadias is a relatively common form of 46,XY disorders of sex development. Although several genes have been implicated in the development of hypospadias, molecular basis of the majority of cases remain unknown. Recently, targeted disruption of lysine-specific demethylase 3A (KDM3A) were shown to cause defective sex development in male mice.Objective and hypotheses: The aim of this study was to clarify whether KDM3A mutations underlie hypo...