hrp0086fc2.1 | Bone & Mineral Metabolism | ESPE2016

Characterization of GNAS miRNAs Targets: Trying to Better Understand the Pathophysiology of Pseudohypoparathyroidism 1B (PHP1B)

Hanna Patrick , Netchine Irene , Le Stunff Catherine , Linglart Agnes

Background: Patients affected with PHP1B are characterized by resistance to PTH which binds to the PTH receptor and activate the cAMP/Gsa signaling pathway. Gsa is encoded by GNAS, a locus subjected to genomic imprinting. PHP1B patients present with abnormal methylation at the maternal A/B promoter and, in some cases, at the other promoters (XLas, GNAS-AS1 and NESP55) of the GNAS locus, likely leading to a decreased express...

hrp0086rfc2.8 | Bone & Mineral Metabolism | ESPE2016

Final Heights and BMI in Patients Affected with Different Types of Pseudohypoparathyroidism

Hanna Patrick , Mantovani Giovanna , Grybek Virginie , Juppner Harald , Brehin Anne-Claire , Kottler Marie-Laure , Rothenbuhler Anya , Linglart Agnes

Background: Pseudohypoparathyroidism type 1A (PHP1A) and PseudoPHP are caused respectively by maternal and paternal mutations involving those GNAS exons that encode the alpha-subunit of the stimulatory G protein (Gsα). Common to different forms of PHP1B is a loss-of-methylation (LOM) at one or several maternal GNAS exons, which likely reduces Gsα expression in certain tissues. In most autosomal dominant PHP1B variants (AD-PHP1B), LOM is restricted t...

hrp0095fc2.6 | Bone, Growth Plate and Mineral Metabolism | ESPE2022

Pseudohypoparathyroidism Type 1A (PHP1A): Growth patterns under growth hormone therapy for short stature

Ertl Diana-Alexandra , Mantovani Giovanna , Perez de Nanclares Guiomar , Gleiss Andreas , Hanna Patrick , Marta Elli Francesca , Pereda Arrate , Rothenbuhler Anya , Audrain Christelle , Berkenou Jugurtha , Linglart Agnes

Background: Pseudohypoparathyroidism 1A, newly classified as inactivating PTH/PTHrP signaling disorder type 2 (iPPSD2), is defined by resistance to parathyroid hormone, short stature and early-onset obesity. Short stature is caused by skeletal dysplasia and additionally, in some cases, also by the coexistence of growth hormone deficiency, as other hormonal resistances might be present (e.g. thyroid-stimulating hormone, growth hormone releasing hormone (GHRH), ...

hrp0086fc2.2 | Bone & Mineral Metabolism | ESPE2016

From Pseudohypoparathyroidism to Inactivating PTH/PTHrP Signaling Disorder (iPPSD), a Novel Classification Proposed by the European EuroPHP-Network

Thiele Susanne , Mantovani Giovanna , Barlier Anne , Bordogna Paola , Elli Francesca M , Freson Kathleen , Garin Intza , Grybek Virginie , Hanna Patrick , Izzi Benedetta , Hiort Olaf , Lecumberri Beatriz , Pereda Arrate , de Sanctis Luisa , Silve Caroline , Turan Serap , Usardi Alessia , Saraff Vrinda , de Nanclares Guiomar Perez , Linglart Agnes

Background: Disorders related to an impairment in parathyroid hormone (PTH) signaling pathway are historically classified under the term pseudohypoparathyroidism (PHP), that now encompasses rare, related but highly heterogeneous diseases with demonstrated (epi)genetic causes. The actual classification is based on the presence or absence of specific clinical and biochemical signs together with an in vivo response to exogenous PTH and an in vitro assay of Gs&#9...

hrp0089rfc11.1 | Bone, Growth Plate & Mineral Metabolism 2 | ESPE2018

Diagnosis and Management of Pseudohypoparathyroidism and Related Disorders: First International Consensus Statement

Mantovani Giovanna , Bastepe Murat , Monk David , de Sanctis Luisa , Thiele Susanne , Usardi Alessia , Ahmed Faisal , Bufo Roberto , Choplin Timothee , DeFillipo Gianpaolo , Devernois Guillemette , Eggermann Thomas , Elli Francesca M , Freson Kathleen , Ramirez Aurora Garcia , Germain-Lee Emily , Groussin Lionel , Hamdy Neveen , Hanna Patrick , Hiort Olaf , Juppner Harald , Kamenicky Peter , Knight Nina , Kottler Marie-Laure , Le Norcy Elvire , Lecumberri Beatriz , Levine Michael A , Makiti Outi , Martin Regina , Martos-Moreno Gabriel Angel , Minagawa Masanori , Muray Philip , Pereda Arrate , Pignolo Roberto , Rejnmark Lars , Rodado Rebecca , Rothenbuhler Anya , Saraff Vrinda , Shoemaker Ashley , Shore Eileen M. , Silve Caroline , Turan Serap , Woods Philip , Zillikens M. Carola , de Nanclares Guiomar Perez , Linglart Agnes

Pseudohypoparathyroidism (PHP) and related disorders lead to a wide spectrum of abnormal physical characteristics, neurocognitive and endocrine abnormalities. PHP (including all subtypes), pseudoPHP, acrodysostosis and progressive osseous heteroplasia refer to heterogeneous disorders characterized by physical findings, differently associated in each subtype, including short bones, short stature, stocky build, subcutaneous ectopic ossifications, as well as laboratory abnormalit...