不同剂量重组人生长激素治疗小于胎龄儿矮小症的疗效分析

Efficacy of different doses of recombinant human growth hormone in the treatment of short stature in children born small for gestational age

摘要:

目的 研究不同剂量重组人生长激素(rhGH)治疗小于胎龄儿(SGA)矮小症的效果和安全性。方法 收集SGA 矮小症患儿37 例,并根据使用剂量分为2 组:小剂量(每日0.1~0.15 IU/kg)rhGH 治疗组和大剂量rhGH 治疗组(每日0.16~0.2 IU/kg),比较两组患儿治疗后3、6、9、12 及24 个月时身高标准差的增长值(ΔHtSDS)、生长速率(HV)、血清胰岛素样生长因子-1(IGF-1)、胰岛素样生长因子结合蛋白-3(IGFBP-3)水平及空腹血糖等指标的变化。结果 大、小剂量rhGH 治疗后ΔHtSDS 及HV 均有提高,但大剂量组治疗后9、12 及24 个月时ΔHtSDS 及HV 均高于小剂量组(P<0.05)。大剂量和小剂量的rhGH 治疗均使血清IGF-1 和IGFBP-3 水平提高,且血清IGF-1 和IGFBP-3 水平与HtSDS 呈正相关。大小剂量组各有1 例患儿出现一过性空腹血糖轻微升高(均为6.1 mmol/L);两组甲状腺功能均无异常。结论 rhGH 治疗SGA 矮小症效果确切,不良反应少,其中大剂量较小剂量治疗更具优势。

Abstract:

Objective To investigate the efficacy and safety of different doses of recombinant human growth hormone (rhGH) in the treatment of short stature in children born small for gestational age (SGA). Methods A total of 37 children with short stature born SGA were enrolled, and based on the dose of rhGH treatment, they were divided into low-dose rhGH group (0.1-0.15 IU/kg daily) and high-dose rhGH group (0.16-0.2 IU/kg daily). The changes in height standard deviation score (ΔHtSDS), height velocity (HV), serum levels of insulin-like growth factor-1 (IGF-1) and insulin-like growth factor binding protein-3 (IGFBP-3), and fasting blood glucose at 3, 6, 9, 12, and 24 months after treatment were compared between the two groups. Results ΔHtSDS and HV both increased after the treatment with high-and low-dose rhGH, but ΔHtSDS and HV in the high-dose rhGH group were significantly higher than in the lowdose rhGH group 9, 12 and 24 months after treatment (P<0.05). Both high-and low-dose rhGH treatment increased serum levels of IGF-1 and IGFBP-3. Serum levels of IGF-1 and IGFBP-3 were positively correlated with HtSDS in both groups. One child each in the high-and low-dose rhGH groups experienced transient slight increase in fasting blood glucose (6.1 mmol/L). There were no cases of abnormal thyroid function. Conclusions rhGH has good efficacy in the treatment of short stature in children born SGA, with few adverse events, and high-dose rhGH has some advantages over low-dose rhGH.