ESPE Abstracts

Background: Langerhans cell histiocytosis (LCH) is a rare disease with an incidence of less than 10 per million, and characterized by the clonal proliferation of pathogenic Langerhans cells. The clinical courses are diverse, ranging from spontaneously remitting single organ disease to life-threatening multisystem involvement. One of the serious complications of LCH is diabetes insipidus (DI), and patients with CNS-risk lesions had higher cumulative incidence of DI. On the othe...

Introduction: Breast milk is a perfect food, but it can be deficient in vitamin D. In the Danish study, vitamin D was correlated in mothers, breast milk and not in breast milk and infants. We investigated the correlation between mother, breast milk, and infants vitamin D levels in Japan.Materials and Methods: This study included 84 pairs of mothers and 2-week-old infants born at the Iizuka Hospital and Vitamin D includin...

Background: Information on sex hormone levels in young children is currently lacking, because those levels are generally below the lower limit of quantitation of conventional immunoassay methods. We investigated sex differences in serum levels of sex hormones in relation to upstream hormones and other background factors in young children, using liquid chromatography-tandem mass spectrometry (LC-MS/MS).Methods: This cross-sectional study enrolled 151 chil...