ISSN 1662-4009 (online)

ey0021.4-4 | Important for Clinical Practice | ESPEYB21

4.4. Recombinant human insulin-like growth factor-1 treatment of severe growth failure in three siblings with STAT5B deficiency

G Muthuvel , SS Al Remeithi , C Foley , A Dauber , V Hwa , P Backeljauw

Brief Summary: This case series describes the effect of recombinant human IGF-1 (rhIGF-1) administration on growth of three siblings with STAT5B homozygous recessive mutations.The peripheral effects of GH are primarily mediated by IGF-I through the activation of the GH receptor (GHR)-signal transducer and activator of transcription (STAT)-5B signaling. Patients carrying STAT5B mutations have severe postnatal growth failure and IGF-I deficiency a...