hrp0084p2-234 | Bone | ESPE2015

Variable Degree of Hormonal Resistance in Patients with Progressive Osseous Heteroplasia

Miyai Kentaro , Nishina Noriko , Takagi Masaki , Goto Masahiro , Hasegawa Yukihiro

Background: Progressive Osseous Heteroplasia (POH) is characterised by heterotopic ossifications in a deep muscle and fascia. To date, GNAS1 gene loss-of-function mutations on paternal allele were reported as responsible for POH. Unlike other GNAS1 related diseases such as pseudohypoparathyroidism 1a (PHP1a) or pseudopseudohypoparathyroidism (PPHP), patients with typical POH do not show hormonal resistance (HR) or Albright hereditary osteodystrophy (AHO). But some patients dia...

hrp0084p3-1204 | Thyroid | ESPE2015

Use of Liothyronine in a Case of Consumptive Hypothyroidism Caused by Hepatic Hemangiomas

Higuchi Shinji , Takagi Masaki , Goto Masahiro , Hasegawa Yukihiro

Background: Diffuse or multifocal infantile hepatic hemangiomas cause consumptive hypothyroidism due to overexpression of type 3 deiodinase in the endothelium of vascular tumor. Because type 3 deiodinase converts of T4 to reverse T3 and of T3 toT2, a use of levothyroxine alone may not maintain normal levels both fT3 and fT4. T3 therapy in this order has scarcely been reported. We here present a Japane...

hrp0084p2-214 | Bone | ESPE2015

TmP/GFR is a Useful Marker in Making a Clinical Diagnosis of X-Linked Hypophosphataemic Rickets Caused by the PHEX Gene Mutation

Takeda Ryojun , Miyai Kentaro , Takagi Masaki , Goto Masahiro , Ariyasu Daisuke , Izawa Masako , Igaki Junko , Suzuki Eri , Nakamura Yoshie , Hasegawa Yukihiro

Background: The clinical diagnosis of x-linked hypophosphatemic (XLH) rickets is based on a number of biochemical observations. These include a reduction in the percentage of tubular reabsorption of phosphate (%TRP), and in the maximal tubular phosphate reabsorption capacity corrected for glomerular filtration rate (TmP/GFR). However, it is important to maintain sufficient renal blood flow in order to accurately calculate TmP/GFR.Objective: The aims of t...