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  1. Article ; Online: Pituitary Stalk Interruption Syndrome from Infancy to Adulthood: Clinical, Hormonal, and Radiological Assessment According to the Initial Presentation.

    Bar, Céline / Zadro, Charline / Diene, Gwenaelle / Oliver, Isabelle / Pienkowski, Catherine / Jouret, Béatrice / Cartault, Audrey / Ajaltouni, Zeina / Salles, Jean-Pierre / Sevely, Annick / Tauber, Maithé / Edouard, Thomas

    PloS one

    2015  Volume 10, Issue 11, Page(s) e0142354

    Abstract: Background: Patients with pituitary stalk interruption syndrome (PSIS) are initially referred for hypoglycemia during the neonatal period or growth retardation during childhood. PSIS is either isolated (nonsyndromic) or associated with extra-pituitary ... ...

    Abstract Background: Patients with pituitary stalk interruption syndrome (PSIS) are initially referred for hypoglycemia during the neonatal period or growth retardation during childhood. PSIS is either isolated (nonsyndromic) or associated with extra-pituitary malformations (syndromic).
    Objective: To compare baseline characteristics and long-term evolution in patients with PSIS according to the initial presentation.
    Study design: Sixty-seven patients with PSIS were included. Data from subgroups were compared: neonates (n = 10) versus growth retardation patients (n = 47), and syndromic (n = 32) versus nonsyndromic patients (n = 35).
    Results: Neonates displayed a more severe hormonal and radiological phenotype than children referred for growth retardation, with a higher incidence of multiple hormonal deficiencies (100% versus 34%; P = 0.0005) and a nonvisible anterior pituitary lobe (33% versus 2%; P = 0.0017). Regular follow-up of growth might have allowed earlier diagnosis in the children with growth retardation, as decreased growth velocity and growth retardation were present respectively 3 and 2 years before referral. We documented a progressive worsening of endocrine impairment throughout childhood in these patients. Presence of extra-pituitary malformations (found in 48%) was not associated with more severe hormonal and radiological characteristics. Growth under GH treatment was similar in the patient groups and did not vary according to the pituitary MRI findings.
    Conclusions: PSIS diagnosed in the neonatal period has a particularly severe hormonal and radiological phenotype. The progressive worsening of endocrine impairment throughout childhood justifies periodic follow-up to check for additional hormonal deficiencies.
    MeSH term(s) Adolescent ; Adult ; Child ; Child, Preschool ; Female ; Growth Disorders/blood ; Growth Disorders/drug therapy ; Hormone Replacement Therapy ; Hormones/blood ; Hormones/deficiency ; Hormones/therapeutic use ; Humans ; Infant ; Infant, Newborn ; Longitudinal Studies ; Magnetic Resonance Imaging ; Male ; Pituitary Diseases/blood ; Pituitary Diseases/diagnosis ; Pituitary Diseases/drug therapy ; Pituitary Gland/abnormalities ; Pituitary Gland/diagnostic imaging ; Pituitary Gland, Anterior/abnormalities ; Pituitary Gland, Anterior/diagnostic imaging ; Radiography ; Regression Analysis ; Retrospective Studies ; Syndrome ; Treatment Outcome
    Chemical Substances Hormones
    Language English
    Publishing date 2015
    Publishing country United States
    Document type Journal Article
    ISSN 1932-6203
    ISSN (online) 1932-6203
    DOI 10.1371/journal.pone.0142354
    Database MEDical Literature Analysis and Retrieval System OnLINE

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  2. Article: Unusual phenotypic features in a patient with a novel splice mutation in the GHRHR gene.

    Hilal, Latifa / Hajaji, Yassir / Vie-Luton, Marie-Pierre / Ajaltouni, Zeina / Benazzouz, Bouchra / Chana, Maha / Chraïbi, Adelmajid / Kadiri, Abdelkrim / Amselem, Serge / Sobrier, Marie-Laure

    Molecular medicine (Cambridge, Mass.)

    2008  Volume 14, Issue 5-6, Page(s) 286–292

    Abstract: Isolated growth hormone deficiency (IGHD) may be of genetic origin. One of the few genes involved in that condition encodes the growth hormone releasing hormone receptor (GHRHR) that, through its ligand (GHRH), plays a pivotal role in the GH synthesis ... ...

    Abstract Isolated growth hormone deficiency (IGHD) may be of genetic origin. One of the few genes involved in that condition encodes the growth hormone releasing hormone receptor (GHRHR) that, through its ligand (GHRH), plays a pivotal role in the GH synthesis and secretion by the pituitary. Our objective is to describe the phenotype of two siblings born to a consanguineous union presenting with short stature (IGHD) and Magnetic Resonance Imaging (MRI) abnormalities, and to identify the molecular basis of this condition. Our main outcome measures were clinical and endocrinological investigations, MRI of the pituitary region, study of the GHRHR gene sequence and transcripts. In both patients, the severe growth retardation (-5SD) was combined with anterior pituitary hypoplasia. In addition to these classical phenotypic features for IGHD, one of the patients had a Chiari I malformation, an arachnoid cyst, and a dysmorphic anterior pituitary. A homozygous sequence variation in the consensus donor splice site of intron 1 (IVS1 + 2T > G) of the GHRHR gene was identified in both patients. Using in vitro transcription assay, we showed that this mutation results in abnormal splicing of GHRHR transcripts. In this report, which broadens the phenotype associated with GHRHR defects, we discuss the possible role of the GHRHR in the proper development of extrapituitary structures, through a mechanism that could be direct or secondary to severe GH deficiency.
    MeSH term(s) Alternative Splicing ; Child ; DNA Mutational Analysis ; Dwarfism, Pituitary/drug therapy ; Dwarfism, Pituitary/genetics ; Dwarfism, Pituitary/pathology ; Female ; Growth Hormone/therapeutic use ; Humans ; Magnetic Resonance Imaging ; Male ; Mutation ; Pedigree ; Phenotype ; RNA Splice Sites/genetics ; Receptors, Neuropeptide/genetics ; Receptors, Neuropeptide/physiology ; Receptors, Pituitary Hormone-Regulating Hormone/genetics ; Receptors, Pituitary Hormone-Regulating Hormone/physiology ; Reverse Transcriptase Polymerase Chain Reaction
    Chemical Substances RNA Splice Sites ; Receptors, Neuropeptide ; Receptors, Pituitary Hormone-Regulating Hormone ; Growth Hormone (9002-72-6) ; somatotropin releasing hormone receptor (F8L0ODC9D7)
    Language English
    Publishing date 2008-02-20
    Publishing country England
    Document type Case Reports ; Journal Article ; Research Support, Non-U.S. Gov't
    ZDB-ID 1283676-x
    ISSN 1076-1551
    ISSN 1076-1551
    DOI 10.2119/2007-00128.Hilal
    Database MEDical Literature Analysis and Retrieval System OnLINE

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