ESPE Abstracts

Background: Hypophosphatasia (HPP) is an inherited bone disorder caused by ALPL gene mutations. It is classified into 6 clinical types (perinatal lethal form, prenatal benign form, infantile form, childhood form, adult form, and odontohypophosphatasia). Severe types show autosomal recessive inheritance, and mild types show autosomal recessive or autosomal dominant inheritance. The adult form is asymptomatic in childhood. Treatment includes ALP enzyme ...

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: ...