Molekulargenetisches Labor
Zentrum für Nephrologie und Stoffwechsel
Moldiag Erkrankungen Gene Support Kontakt

Störungen der Regulation des Wachstums

In dieser Gruppe werden Erkrankungen zusammengefasst die auf einer Gestörten Wachstumshormonwirkung beruhen. Dabei können Störungen auf den verschiedensten Ebenen der Wachstumshormon-Signalkaskade liegen. Vom Releasing Hormon über das Wachstumshormon bis hin zum Somatomedin C (IGF1) genannten Zytokin. In jedem dieser Signalschritte kann wiederum sowohl das Hormon als auch der Rezeptor betroffen sein.

Pathogenese

G cluster_a Hypothalamus cluster_b Hypophyse cluster_c Periphere Zelle cluster_d Effektorzelle (zB. Fibroblast) a1 GHSR a2 GHRH a1->a2 + b1 GHRHR a2->b1 + b2 GH b1->b2 + c1 GHR b2->c1 + c2 STAT5B c1->c2 + c3 IGF1 c2->c3 + d1 IGFR c3->d1 +
Wachstumshormon Signalkaskade

Labortest

Für alle Laborteste gilt das Störungen innerhalb der Wachstumshormon-Signalkaskade meist zu einer Erhöhung der Hormonwerte stromauf und einer Erniedrigung strommab führen.

Parameter Interpretation
GHRH Erniedrigt bei Störungen in Hypothalamus
GH Erniedrigt bei Störungen in der Hypophyse
IGF1 Erniedrigt bei Störungen in GH-Signalverarbeitung in peripheren Zellen
TSH,LH,ACTH,FSH Erniedrigt bei Störungen der gesamten Hypophyse

Gliederung

Erbliche endokrinologische Erkrankungen
Autoimmune Polyendokrinopathie
Erbliche Erkrankungen der Hypophyse
Erkrankungen der Nebenschilddrüse
Genetische Erkrankungen der Hypophyse
Genetische Erkrankungen der Nebenniere
Hereditärer Diabetes insipidus
Multiple endokrine Neoplasie 1
Nierenerkrankungen mit endokrinologischer Manifestation
Störungen der Regulation des Wachstums
ADAMTSL3
Kombinierter Hypophysenhormon-Mangel
Hyophysenhormonmangel Typ 1
POU1F1
Hyophysenhormonmangel Typ 2
PROP1
Hyophysenhormonmangel Typ 3
LHX3
Hyophysenhormonmangel Typ 4
LHX4
Hyophysenhormonmangel Typ 5
HESX1
Wachstumshormon-Mangel
GH1
Isolierter dominanter Wachstumshormonmangel
GH1
Isolierter rezessiver Wachstumshormonmangel Typ 1A
GH1
Isolierter rezessiver Wachstumshormonmangel Typ 1B
GH1
GHRH
GHRHR
Isolierter x-chromosomaler Wachstumshormonmangel
BTK
Kowarski-Syndrom
GH1
Wachstumshormon-Sekretagogum-Resistenz
GHSR
Wachstumshormon-Unempfindlichkeit
IGFBP3
Insulinähnlicher Wachtumsfaktor 1 Mangel
IGF1
Insulinähnlicher Wachtumsfaktor 1 Resistenz
IGF1R
Insulinähnlicher Wachtumsfaktor 1-Transportproteinmangel
IGFALS
Laron-Syndrom
GHR
SH2B1
Wachstumshormoninsensitivität mit Immundefizit
STAT5B
Wachstumshormon-Überempfindlichkeit
GHR
Störungen der Sexualentwicklung
Störungen des Schilddrüsenhormonsystems

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