生长激素缺乏儿童在生长激素治疗中血清瘦素水平的改变

为了观察生长激素对血清瘦素 (leptin)的影响 ,用酶联法测定33例青春期前正常儿童和12例生长激素缺乏(GHD)患儿在治疗前、治疗后血清leptin水平 ;同时观察了患儿BMI与leptin的关系。结果显示 ,正常青春期前儿童血清leptin水平为 (1.22±0.94)ng/ml;治疗前GHD患儿血清leptin水平为 (3.079±2.407)ng/ml,与对照组相比差异无显著性(P>0.05) ;GHD患儿治疗后1、3、6个月血清leptin水平分别为 (1.643±1.367)ng/ml、(1.571±1.397)ng/ml和 (1.349±0.893)ng/ml,与治疗前相比差异有显著性 (P均<0.001)。提示生长激素对leptin的表达有抑制作用     

原发甲状腺功能低下患儿治疗前后生长激素的变化

目的　观察原发甲状腺功能低下患儿 (甲低 )治疗前后生长激素 (GH)的变化。方法　用放射免疫法测定患儿治疗前后空腹T3、T4 、甲状腺刺激激素 (TSH)、卵泡刺激素 (FSH)、黄体生成素 (LH)、催乳素 (PRL)、生长激素 (GH) ,并做头颅CT或MRI。结果　治疗前T3、T4 明显下降 ,TSH、FSH、LH、PRL明显上升 ,GH刺激试验示GH分泌不足 ,头颅CT或MRI示垂体微腺瘤。用甲状腺片治疗后T3、T4 、TSH、FSH、LH、PRL渐正常 ,并于 3、6个月复查头颅CT或MRI示垂体微腺瘤消失 ,GH刺激试验示GH分泌正常。治疗前后各组数据有显著差异 ,与治疗前比较P <0 .0 1。结论　原发甲低患儿可出现暂时GH下降及垂体假性微腺瘤     

国产重组人生长激素治疗生长激素缺乏症的临床疗效

目的为评价国产重组人生长激素(r-hGH)治疗生长激素缺乏症(GHD)的有效性和安全性.方法用国产r-hGH对62例GHD患者进行了为期6个月的临床治疗.结果患儿平均身高从治疗前116.23±15.54 cm增加至122.53±15.30 crn,平均6个月净增高数为6.3±1.79 C1m,有显著性差异(P<0.01),生长速率从2.46±0.87 cm/a提高至12.61±3.58 cm/a,净生长速率为10.15±3.31 cm/a,较治疗前明显增高(P<0.01),提示r-hGH治疗GHD的促身高增长效果显著.完全性GH缺乏者治疗6个月身高净增高了6.58±1.68 cm,较部分性GH缺乏者治疗6个月身高净增高了5.28±1.91 Cm,有显著性差异,说明r-hGH治疗完全性GH缺乏者较部分性GH缺乏者更为有效.结论 r-hGH治疗GHD的疗效确切,有明显的促身高增长的作用,而对骨龄成熟无明显加速影响,该药使用安全,无明显副作用.     

rhGH替代治疗对生长激素缺乏儿童糖代谢的影响

目的探讨重组人生长激素(rhGH)替代治疗对生长激素缺乏症(GHD)儿童糖和胰岛素代谢的影响以及 GH 与糖代谢平衡之间的关系。方法对44例(男28例,女16例)4.5～16.5(10.4±2.6)岁 GHD 患儿在接受 rhGH 治疗前及治疗后每3个月检测体重指数、胰岛素样生长因子-1(IGF-1)、行口服葡萄糖耐量试验,计算稳态模型胰岛素抵抗指数。结果 (1)空腹血糖和 IGF-1在治疗3个月时即显著提高,一直持续较高水平,每个随访时间点与治疗前比较,差异均有统计学意义(F=6.81,7.31,P 均<0.01);稳态模型胰岛素抵抗指数和空腹胰岛素分别在治疗3和9个月时提高(P<0.01和 P<0.05),1年后下降,治疗1年半时与治疗前比较,差异已无统计学意义(均 P>0.05)。(2)相关分析发现,稳态模型胰岛素抵抗指数与体重指数、IGF-1和治疗持续时间显著相关(r=0.251,0.437,0.281,P 均<0.001)。二次方程曲线回归分析发现,稳态模型胰岛素抵抗指数与治疗持续时间呈近似抛物线量变关系。(3)发现2例暂时性高血糖,分别在停用 rhGH 治疗后1个月和5d 血糖恢复正常,再注射 rh GH 后,行口服葡萄糖耐量试验正常。结论 GHD 儿童接受 rhGH 治疗(尤第1年内)可增加胰岛素抵抗,极少数引起短暂糖代谢紊乱。循环 IGF-1可能参与控制胰岛素的敏感性,在 GH 与胰岛素平衡间起重要作用。有必要对所有接受 rhGH 治疗者定期监测糖代谢指标和 IGF-1水平。     

重组人生长激素治疗生长激素缺乏症疗效观察

目的 观察基因重组人生长激素(rhGH)对生长激素缺乏症(GHD)患儿的疗效。方法 对15例GHD患儿应用rhGH治疗,每晚睡前皮下注射0.1 IU/kg,疗程6个月。结果 患儿身高由治疗前109.3±9.9cm增加到115.5±11.3 cm;年身高生长速度由治疗前2.8±0.6cm/年增加到11.6±3.5cm/年。治疗期间除少数患儿出现亚临床甲状腺功能低下,注射部位有轻度反应外,未发现明显副作用。结论 皮下注射rhGH是治疗儿童GHD的一种安全有效的方法。     

TRH兴奋试验在生长激素缺乏症患儿中的意义

探讨GHD患儿下丘脑-垂体-甲状腺轴功能的改变。方法诊断为生长激素缺乏症患儿22例，根据GHRH兴奋试验结果分为两组：Ⅰ组为垂体性GHD（5例，GH峰值＜15μg/L；Ⅱ组为下丘脑性GHD（17例，GH峰值≥15μg/L），用GH治疗前进行TRH兴奋试验。结果两组患儿TSH、PRL对TRH刺激反应均低于正常对照组，且以Ⅰ组为著。互组与Ⅱ组垂体TSH储备或分泌功能低下发生率分别为40％和294％。Ⅰ组患儿PRL峰值与GHRH兴奋试验时GH峰值显著正相关（r＝0.8648，P＜0．05）；Ⅱ组两者呈负相关（r=-0．2576），但相关无显著性。结论GHD患儿下丘脑-垂体-甲状腺轴功能存在一定程度的异常。此外，ThH兴奋试验时PRL（90min）峰值及ThH（30min）峰值对GHD患儿病变部位（下丘脑或垂体）的鉴别可能有潜在的参考价植。     

重组人生长激素替代治疗对体脂含量的影响研究

目的分析重组人生长激素(rhGH)治疗生长激素缺乏症(GHD)后患儿体质量变化的规律及原因;寻找rhGH替代治疗后便捷、灵敏地监测脂代谢变化的指标,了解机体脂代谢变化与rhGH疗效的相关性。方法随机选择完全性生长激素缺乏症(GHD)患儿15例,给予rhGH0.033mg/(kg·d)治疗,疗程6个月。观察用药前后身高(Ht)、生长速度(GV)、身高标准差积分(HtSDS)的变化,评价rhGH的促生长作用;测量治疗前、治疗3个月后、治疗6个月后的体质量(Wt)、体脂含量(Fat%)、体质指数(BMI)、腰臀比(WHR),检测治疗前、治疗6个月后的血脂水平,评价GHD患儿rhGH治疗前、后脂代谢状况。分析rhGH治疗后机体脂代谢变化与rhGH疗效的相关性。结果治疗后患儿Ht、GV、HtSDS改善显著(P<0.01),rhGH促生长作用肯定;治疗后患儿Fat%、血HDL、LDL水平较治疗前显著下降(P<0.05),机体脂代谢得到改善;rhGH治疗3个月与治疗6个月的ΔFat%与ΔGV存在负相关性(r=-0.625,P=0.0096)。结论rhGH治疗GHD后的体质量增长,为非脂肪的增长;体脂含量监测便捷无创,较血脂...     

重组人生长激素对生长激素缺乏儿童脂代谢和脂联素水平的影响

目的研究重组人生长激素(rhGH)对生长激素缺乏症(GHD)患儿脂代谢和脂联素水平的影响。方法对53例GHD患儿及33例年龄、性别相匹配的正常对照儿童,及接受rhGH治疗时间达1年以上的23例GHD患儿检测血三酰甘油(TG)、总胆固醇(TC)、胰岛素样生长因子-1(IGF-1)和脂联素水平,比较GHD组与正常对照组及rhGH治疗前后血脂和脂联素水平变化。结果GHD患儿53例中高脂血症22例(41.5%),GHD与对照组血TG、TC分别为(1.6±1.6)vs(1.1±0.4)mmol/L、(4.5±0.8)vs(4.1±0.6)mmol/L,两组比较有显著差异(P均<0.05);经rhGH治疗后,GHD患儿TG、TC均明显下降,而IGF-1明显升高,治疗前后比较均有显著差异(P<0.01,0.05);治疗后脂联素水平略上升,但治疗前后比较无显著差异。多元回归分析显示,IGF-1与年龄呈正相关,与其他因素无关;脂联素与TG呈负相关。结论GH可能直接参与GHD患儿血脂的调节,脂联素可能部分参与TG的代谢。     

IGF-I及IGFBP-3对生长激素缺乏症患儿诊断及疗效判断的价值

为了探求一次性抽血确诊生长激素缺乏症 (GHD)的方法和寻找一个检测GH治疗效果的可靠而敏感的生化指标 ,分别用RIA法和IRMA法检测25例GHD患儿血清胰岛素样生长因子 -I(IGF -I)、胰岛素样生长因子结合蛋白 -3(IGFBP -3) ,同时进行生长激素 (GH)刺激试验 ;将GHD患儿分为2组 ,完全性缺乏组 (cGHD)及部分缺乏组 (pGHD) ,将2组血清IGF -I、IGFBP -3与年龄、性别配对的正常儿童 (C组 )均值对照 ,并对照不同年龄及不同发育期的50例正常儿童参考范围 ,计算GHD患儿血清IGF -I、IGFBP -3的降低率 ;将IGF -I与GH峰值做相关性分析。用rhGH治疗GHD3个月后将IGF -I增高值 (△IGF -I)与治疗后每年生长速度 (GV)做相关性分析。结果显示 ,GHD组血清IGF -I、IGFBP -3均显著低于正常对照组 ,两组无重叠 ,cGHD组与pGHD组比较 ,两者差异显著 ;IGF -I及IGFBP -3在GHD组及C组均呈显著正相关 ;GHD组血清IGF -I与GH峰值呈显著正相关 (r=0.85,P<0.001) ,回归方程 :y=0.1613 +0.0235x ,由此可根据血清IGF -I测定值求出GH峰值 ;治疗3个月后△IGF -I与治疗后GV呈显著正相关。提示IGF -I、IGFBP -3对GHD患儿的诊断有重要价值 ;GH峰值可根据所测IGF -I由回归方程求出 ,以代替传统的生长激素刺激试验 ;IGF—I是判断rhGH治疗效果的可靠而     

基因重组人生长激素治疗儿童生长激素缺乏症26例

目的　探讨基因重组人生长激素 (rhGH)对生长激素缺乏症 (GHD)患儿的疗效。方法　对 2 6例GHD给rhGH治疗 ,0 .1IU/ (kg·d) ,每晚皮下注射 ,疗程 0 .5年。结果　 2 6例身高平均增加 8.2± 0 .8cm/ 6个月 ,生长速率由治疗前 1.5± 0 .4cm/ 6个月增加至 6.5± 1.7cm/ 6个月 ,身高标准差由治疗前 4.5± 1.2减少至3 .2± 1.1,骨龄无明显增加 ,体重也略有增加。治疗期间第 1～ 3个月 75 %左右患儿出现甲状腺功能低下症状 ,但未影响体格线性增长。结论　rhGH是治疗GHD的一种有效、安全的促生长药物     

Comparison of growth hormone releasing hormone therapy and growth hormone therapy in growth hormone deficiency

Seven children with growth hormone deficiency of hypothalamic origin responded to an i.v. bolus of growth hormone releasing hormone (GHRH) (1–29)-NH2 with a mean serum increase of 10.7 ng/ml growth hormone (GH) (range 2.5–29.3 ng/ml). Continuous s.c. administration of GHRH of 4–6 g/kg twice daily for at least 6 months did not improve the growth rate in five of the patients. One patient increased his growth rate from 1.9 to 3.8 cm/year and another from 3.5 to 8.2 cm/year; however, the growth rate of the latter patient then decreased to 5.4 cm/year. When treatment was changed to recombinant human growth hormone (rhGH) in a dose of 2 U/m² daily, given s.c. at bedtime, the growth rate improved in all patients to a mean of 8.5 cm/year (range: 6.2 to 14.6). Presently GHRH cannot be recommended for the routine therapy of children with growth hormone deficiency since a single daily dose of rhGH produced catch-up growth which GHRH therapy did not.Abbreviations GH growth hormone - GHD growth hormone deficiency - GHRH growth hormone releasing hormone - hGH human growth hormone - rhGH recombinant human growth hormone - SM C/IGF I somatomedin C/insulin-like growth factor I On the occasion of the 85th birthday of Prof. Dr.Dr.h.c. mult. Adolf Butenandt     

Benign intracranial hypertension and recombinant growth hormone therapy in Australia and New Zealand

Benign intracranial hypertension (BIH) is reported in three children from Australia and one from New Zealand, who were being treated with recombinant human growth hormone (rhGH). Three males and one female, aged between 10.5 and 14.2 y, developed intracranial hypertension within 2 weeks to 3 months of starting treatment. A national database, OZGROW, has been prospectively collecting data on all 3332 children treated with rhGH in Australia and New Zealand from January 1986 to 1996. The incidence of BIH in children treated with growth hormone (GH) is small, 1.2 per 1000 cases overall, but appears to be greater with biochemical GHD (<10IUml ^-1), i.e. 6.5/1000 (3 in 465 cases), relative risk 18.4, 95% confidence interval 1.9-176.1, than in all other children on the database. The incidence in patients with Turner's syndrome was 2.3/1000 (1 in 428 cases). No cases in patients with partial GHD (10–20 IUml ^-1) or chronic renal failure were identified. Possible causative mechanisms are discussed. The authors'practice is now to start GH replacement at less than the usual recommended dose of 14IUm-² week^-1 in those children considered to be at high risk of developing BIH. Ophthalmological evaluation is recommended for children before and during the first few months following commencement of rhGH therapy and is mandatory in the event of peripheral or facial oedema, persistent headaches, vomiting or visual symptoms. The absence of papilledema does not exclude the diagnosis.     

儿童颅咽管瘤术后重组人生长激素替代治疗疗效及安全性对照研究

目的:观察儿童颅咽管瘤（CP）术后致身材矮小者使用重组人生长激素（rhGH）治疗的疗效及安全性。方法:纳入CP术后在复旦大学附属儿科医院内分泌遗传代谢科定期随访的患儿。分为rhGH治疗组和rhGH未治疗组。CP术后1~3个月病情稳定后首次随访患儿垂体功能,之后每3个月随访身高、体重、甲状腺功能和生长因子（IGF-1、IGF-BP3）,比较两组治疗前后身高变化。每6～12个月随访头颅MRI,观察两组患儿CP复发及继发肿瘤发生情况。结果:CP术后患儿共18例,男、女各9例,均存在生长激素缺乏症（GHD）。rhGH治疗组和rhGH未治疗组分别为6和12例,平均手术年龄分别为（10.1±4.2）和（10.1±4.0）岁。16/18例（88.9%）存在垂体功能减低,其中12例（75.0%）伴甲状腺功能减低,9例（56.2%）伴中枢性尿崩症,4例（25.0%）伴性发育延迟,11例（68.8%）伴促肾上腺皮质激素下降。rhGH治疗组中2例单用rhGH治疗,4例同时使用左旋甲状腺素、醋酸去氨加压素和氢化可的松治疗,开始给予rhGH治疗的时间为术后（3.5±2.4）年,平均治疗时间为（2.6±2.2）年,治疗前身高增长速度（HV）为每年（3.1±1.0）cm,身高标准差（HTSDS）为（-2.63±0.93）,至本文观察时点HV为每年（12.0± 1.10）cm, HTSDS为（-0.21±1.39）,生长因子水平较治疗前明显上升。rhGH未治疗组治疗前HV为每年（3.2±0.9）cm,HTSDS为（-2.44±0.62）,至本文观察时点HV为每年（3.8±1.0）cm,HTSDS为（-3.76±0.97）,生长因子水平治疗前后差异无统计学意义。两组随访头颅MRI均未见异常。结论:儿童CP术后可出现多种内分泌激素异常,GH替代治疗可明显改善患儿身高,治疗期间未见原肿瘤复发及继发肿瘤发生。     

The effect of growth hormone on growth and blood urea levels in children with chronic renal failure

It has been claimed that low protein diets slow deterioration of chronic renal failure (CRF) by reducing renal solute load. The anabolic effect of recombinant human growth hormone (rhGH) also has potential to reduce renal solute load and thereby slow progression of renal failure. The aim of this study was to determine the effect of rhGH on growth, renal solute load and renal function in children with CRF.
Seven prepubertal children, aged 2-14 years, with moderately severe CRF (creatinine clearance 7.7-23.4 mL/min per 1.73 m²) were treated with daily subcutaneous rhGH, 1 U/kg per week for 10-12 months. As expected, mean height velocity standard deviation scores (SDS) increased, from - 2.87 before treatment to + 3.39 on rhGH, and mean height increased from - 3.1 to - 2.4 SDS. Serum urea concentrations decreased in most patients during the first month of growth hormone treatment from a mean of 20.0pm7.7 mmol/L to 14.8pm5.8 mmol/L ( P = 0.006). The serum urea then returned to pretreatment levels over the next few months.
In the 12 months before treatment with growth hormone, mean creatinine clearance decreased from 19.3 mL/min per 1.73 m² to 16.7 mL/min per 1.73 m². In the next 12 months on rhGH mean creatinine clearance decreased further to 13.5 mL/min per 1.73 m². Therefore the rate of deterioration of renal function was unaffected during treatment with growth hormone. Initial treatment with rhGH is associated with decrease in serum urea concentrations in children with CRF, probably mediated by stimulation of anabolic incorporation of dietary nitrogen into body protein. Despite this reduction in renal solute load, renal function deterioration continued unchanged in most children.     

Childhood cancer survivors exposed to total body irradiation are at significant risk for slipped capital femoral epiphysis during recombinant growth hormone therapy

Background

Childhood cancer survivors treated with cranial or total body irradiation (TBI) are at risk for growth hormone deficiency (GHD). Recombinant growth hormone (rhGH) therapy is associated with slipped capital femoral epiphysis (SCFE). We compared the incidence of SCFE after TBI versus cranial irradiation (CI) in childhood cancer survivors treated with rhGH.

Procedure

Retrospective cohort study (1980–2010) of 119 survivors treated with rhGH for irradiation‐induced GHD (56 TBI; 63 CI). SCFE incidence rates were compared in CI and TBI recipients, and compared with national registry SCFE rates in children treated with rhGH for idiopathic GHD.

Results

Median survivor follow‐up since rhGH initiation was 4.8 (range 0.2–18.3) years. SCFE was diagnosed in 10 subjects post‐TBI and none after CI (P < 0.001). All 10 subjects had atypical valgus SCFE, and 7 were bilateral at presentation. Within TBI recipients, age at cancer diagnosis, sex, race, underlying malignancy, age at radiation, and age at initiation of rhGH did not differ significantly between those with versus without SCFE. The mean (SD) age at SCFE diagnosis was 12.3 (2.7) years and median duration of rhGH therapy to SCFE was 1.8 years. The SCFE incidence rate after TBI exposure was 35.9 per 1,000 person years, representing a 211‐fold greater rate than reported in children treated with rhGH for idiopathic GH deficiency.

Conclusions

The markedly greater SCFE incidence rate in childhood cancer survivors with TBI‐associated GHD, compared with rates in children with idiopathic GHD, suggests that cancer treatment effects to the proximal femoral physis may contribute to SCFE. Pediatr Blood Cancer 2013;60:1766–1771. © 2013 Wiley Periodicals, Inc.     

重组人生长激素注射液治疗儿童生长激素缺乏症的临床评价

目的 生长激素缺乏症(GHD)有赖于生长激素替代治疗.生长激素注射液可简化注射过程,提高依从性.进一步评价中国重组人生长激素注射液治疗儿童GHD的疗效和安全性.方法 采用多中心、前瞻性、随机开放的研究方法 ,对31例[男20例,女11例,年龄(10.5±4.1)岁]确诊为完全件GHD的患儿,给予重组人生长激素注射液,0.25 mg/(kg·周)[0.107 U/(kg·d)],每晚睡前皮下注射1次,治疗3、6、9、12个月后进行随访,疗程12个月.比较治疗前后的身高增长量(△HT)、年生长速率(growth velocity,GV)、身高均值标准差积分(HT SDS)、血胰岛素样生长因子Ⅰ(IGF-1)、胰岛素样生长因子结合蛋白质3(IGFBP-3)、抗生长激素抗体和骨成熟情况的变化,并评估药物治疗的安全性.结果 (1)治疗3、6、9、12个月后△HT(cm)分别为4.0±1.3、7.0±2.0、10.3±2.6和12.9±3.3(P<0.01),显示治疗后呈良好线性生长;GV(cm/年)治疗前为2.7±0.9,治疗后分别升至16.0±5.1、14.1±4.0、13.7±3.5和12.9±3.3,显示治疗后追赶生长明显,治疗前后比较,差异有统计学意义(P<0.01);HT SDS治疗前为-4.62±1.46,治疗后分别为-3.80±1.53、-3.28±1.60、-2.86±1.75和-2.47±1.86,显示治疗后身高与同年龄同性别正常儿童差距逐步缩小,与治疗前相比差异有统计学意义(P<0.01);(2)血IGF-1(ug/L)治疗前为41±64,治疗后分别为179±155、202±141、156±155和159±167;IGFBP-3(mg/L)治疗前为1540±1325,治疗后分别为3891±1815、4051±1308、3408±1435和3533±1413,显示随着身高增长,IGF-1、IGFBP-3被药物激活到较高水平,治疗前后差异均有统计学意义(P<0.01);(3)在治疗6个月、12个月后进行骨龄评估,骨成熟程度(△BA/△CA)分别为1.01±0.57、1.07±0.75,显示骨龄无加速发展;(4)治疗期间未发生严重不良事件,与药物有关的伴随反应主要表现为甲状腺功能减低.结论重组人生长激素注射液足一种安全有效治疗儿童GHD的药物.     

磁共振成像在生长激素缺乏症中的应用

磁共振成像(MRI)技术可观察患儿垂体大小、形态、结构的变化及与周围结构的关系,结合多种激素检查,对于生长激素缺乏症的精确诊断、合理治疗及其预后的判断均有较大价值.生长激素缺乏所致的侏儒症是儿童矮小最常见的原因之一,常见原因为原发性垂体发育不良、空蝶鞍、颅咽管瘤.     

Traumatic brain injury is a rarely reported cause of growth hormone deficiency

We determined the frequency of traumatic brain injury (TBI)-related growth hormone deficiency (GHD) from a large registry of growth hormone-deficient subjects and compared these subjects' clinical characteristics with those of children with idiopathic growth hormone deficiency (IGHD). A surprisingly small number of subjects with TBI-induced GHD (n = 141) were registered compared with those with IGHD (n = 23,722). At onset of treatment, the subjects with TBI-induced GHD were older (P = .045), had lower height velocity (P < .001), had a greater number of other pituitary hormone deficiencies (P < .001) and, after a year of recombinant human GH treatment, demonstrated a greater change in height velocity (P = .016). We speculate that TBI-induced GHD may be a neglected phenomenon in childhood, and recommend prospective longitudinal studies to explore its natural history and frequency.