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  • 1
    Digitale Medien
    Digitale Medien
    Springer
    European journal of pediatrics 151 (1992), S. 321-325 
    ISSN: 1432-1076
    Schlagwort(e): Short stature ; Somatomedin-C ; IGF-I ; IGF-I resistance
    Quelle: Springer Online Journal Archives 1860-2000
    Thema: Medizin
    Notizen: Abstract We report on a Japanese girl with short stature, malar hypoplasia, up-slanting palpebral fissures, blue sclerae and thin, stiff and slightly brownish hair. Short stature started in utero and her psychomotor development was normal. Menarche appeared at 13 years 8 months. Height at 14 years 5 months was 132 cm (−4.6 SD). Her growth hormone (GH) sleep pattern and responses to insulin,l-dopa, arginine, propranolol-glucagon and growth hormone-releasing hormone were normal. Plasma insulin-like growth factor I (IGF-I) was high (2170–4860 units/l) and increased from 4860 to 7080 units/l 20 h after biosynthetic GH injection. Gel infiltration patterns of the free and protein-bound IGF-I in plasma from the patient were not different from the controls; IGF-I fraction of the high and low molecular weight binding protein and the non-protein bound fraction were 75.5%, 15.8% and 8.7%, respectively. IGF-I from the patient showed normal bioactivities when determined by [35S]sulphate and [3H]thymidine uptake into cultured rat chondrocytes, and by [3H]thymidine and [3H]α-aminoisobutyric acid uptake into the patient's skin fibroblasts. IGF-I binding to cultured skin fibroblasts from the patient was comparable to that of controls. These results suggest that tissue specific defects of IGF-I receptors may be the cause of increased IGF-I levels in the patient.
    Materialart: Digitale Medien
    Bibliothek Standort Signatur Band/Heft/Jahr Verfügbarkeit
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