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  • Title: Treatment of patients with Ullrich-Turner syndrome with conventional doses of growth hormone and the combination with testosterone or oxandrolone: effect on growth, IGF-I and IGFBP-3 concentrations.
    Author: Haeusler G, Frisch H, Schmitt K, Blümel P, Plöchl E, Zachmann M, Waldhör T.
    Journal: Eur J Pediatr; 1995 Jun; 154(6):437-44. PubMed ID: 7545577.
    Abstract:
    UNLABELLED: Thirty-nine girls with Ullrich-Turner syndrome (UTS) (median age 9.5 years) were treated with growth hormone (GH) with either 12 or 18 IU/m2 per week for 12 months followed by combination therapy with either oxandrolone (Ox) (0.0625 mg/kg/day po) or low-dose testosterone (T) (5 mg in every 2 weeks). Growth velocity improved significantly after 12 IU/m2 per week (6.4 +/- 1.7 cm/year vs 4.0 +/- 1.3 cm/year, x +/- SD, P < 0.001) and 18 IU/m2 per week of GH (6.5 +/- 1.3 cm/year vs 4.5 +/- 1.4 cm/year, P < 0.001). Ox, but not T was effective in maintaining growth velocity during the 2nd year of therapy (6.9 +/- 1.3 vs 5.3 +/- 1.5 cm/year). Basal insulin-like growth factor-I (IGF-I) concentrations were in the lower normal range and increased significantly in patients treated with 18 IU/m2 per week (357 +/- 180 ng/ml vs 160 +/- 84 ng/ml) and 12 IU/m2 per week (273 +/- 121 ng/ml vs 140 +/- 77 ng/ml). IGF-I concentrations increased further after addition of Ox (533 +/- 124 ng/ml, P < 0.001) or T (458 +/- 158, P < 0.05). IGFBP-3 concentrations were in the upper normal range before therapy and increased only moderately in both GH dosage groups. However, IGF binding protein-3 (IGFBP-3) concentrations were not affected by additional Ox or T treatment. CONCLUSIONS: 1. Conventional GH doses are effective in increasing growth velocity in UTS, especially, when combined with Ox.(ABSTRACT TRUNCATED AT 250 WORDS)
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