Growth hormone pulsatility in active and cured acromegalic subjects.

Growth hormone pulsatility in active and cured acromegalic subjects.
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活跃和治愈肢端肥大症受试者的生长激素脉动。

DOI:
10.1210/jcem.80.12.8530632
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发表时间:
1995
期刊:
The Journal of clinical endocrinology and metabolism
影响因子:
--
通讯作者:
Bernardo Liberman
Bernardo Liberman
中科院分区:
--
文献类型:
--
作者:
M. Semer;A. Faria;Marcia Nery;Luiz Roberto Salgado;M. Knoepfelmacher;B. L. Wajchenberg;Bernardo Liberman

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正常受试者的生长激素分泌是周期性的,在睡眠期间以脉冲为主。在白天(基础分泌),生长激素水平一般是检测不到的。我们采用聚类分析的方法对44例患者的生长激素分泌进行了研究,每隔20分钟采集一次样本,持续24 h: 11例为活动性肢端肥大症;16名“治愈”肢端肥大症患者,17名正常受试者。本研究的目的是比较活动性肢端肥大症患者和“治愈”患者以及“治愈”肢端肥大症患者和正常对照之间的生长激素分泌。无论疾病活动度如何,肢端肥大症患者通过24小时GH谱检测到的脉冲数没有差异(分别为17.5 +/- 4.4 vs 15.0 +/- 6.0),但活动期肢端肥大症患者与正常对照比较(8.1 +/- 1.0,P < 0.05),治愈肢端肥大症患者与正常对照比较(P < 0.05)时存在差异。无论疾病活动如何,正常对照的GH脉动分泌/总GH分泌比肢端肥大症患者高。我们的结论是:1)活性肢端肥大症患者和治愈肢端肥大症患者的生长激素搏动性升高相似,但大部分24小时生长激素分泌无搏动性;2)正常受试者一半的生长激素分泌发生在脉冲期间;3)治愈的肢端肥大症患者,即使生长激素和胰岛素样生长因子I水平正常,也不能恢复正常的生长激素分泌模式。
GH secretion in normal subjects is periodic, with pulses prevailing during sleep. During the day (basal secretion), GH levels are, in general, undetectable. We studied GH secretion by cluster analysis, collecting samples every 20 min for 24 h in 44 subjects: 11 patients with active acromegaly; 16 "cured" acromegalics, and 17 normal subjects. The purpose of this study was to compare GH secretion between patients with active acromegaly and "cured" patients and between "cured" acromegalic patients and normal controls. The number of pulses detected through the 24-h GH profile was not different between acromegalic patients regardless of disease activity (17.5 +/- 4.4 vs. 15.0 +/- 6.0, respectively), but was different when active acromegalic patients and normal controls were compared (8.1 +/- 1.0; P < 0.05) and when cured acromegalic patients and normal controls were compared (P < 0.05). The GH pulsatile secretion/total GH secretion ratio was higher in normal controls than in acromegalic patients regardless of disease activity. We concluded that 1) the increases in GH pulsatility in active and cured acromegalic patients are similar, but most of the 24-h GH secretion is nonpulsatile; 2) half of the GH secretion in normal subjects occurs during pulses; 3) cured acromegalic patients, even those with normal GH and insulin-like growth factor I levels, do not recover a normal GH secretory pattern.
成功切除产生 GH 的垂体肿瘤后,快速生长激素 (GH) 搏动持续存在。
DOI: 10.1210/jcem.78.6.7911124
发表时间: 1994
期刊: The Journal of clinical endocrinology and metabolism
影响因子: --
作者:
Ho,PJ;Jaffe,CA;Friberg,RD;Chandler,WF;Barkan,AL
通讯作者: Barkan,AL
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期刊: The Journal of clinical endocrinology and metabolism
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最近接受手术的肢端肥大症患者的生长激素分泌。
DOI: 10.1210/jcem.79.6.7989479
发表时间: 1994
期刊: The Journal of clinical endocrinology and metabolism
影响因子: --
作者:
vandenBerg,G;Frolich,M;Veldhuis,JD;Roelfsema,F
通讯作者: Roelfsema,F
DOI: 10.1172/jci116639
发表时间: 1993
期刊: The Journal of clinical investigation
影响因子: --
作者:
Jaffe,CA;Friberg,RD;Barkan,AL
通讯作者: Barkan,AL