Effect of exogenous growth hormone administration on endogenous growth hormone secretion induced by a met-enkephalin analog.

Abstract:

:Exogenous growth hormone (hGH) administration in humans attenuates the endogenous growth hormone (GH) response to some pharmacological stimuli; in particular, pretreatment with hGH completely blocks the serum GH response to growth hormone-releasing hormone. In order to evaluate the mechanism(s) whereby opiods induce GH secretion in man, we gave the following treatments to six healthy male volunteers: (a) IV saline; (b) a met-enkephalin analog G-DAMME 250 micrograms IV as a bolus at time 0'; (c) hGH 2 IU as an IV bolus at time -180'; (d) G-DAMME as above, preceded by hGH as above. In our study, G-DAMME stimulated GH secretion both basally (peak 17.9 +/- 6.0 ng/ml) and, to a lesser extent, after hGH pretreatment (6.0 +/- 2.7 ng/ml). Since in our study G-DAMME was able to partially overcome the inhibitory effect of hGH administration, it is suggested that opioids act through an inhibition of somatostatin release and not through a GHRH-dependent pathway. However, an additional direct effect of hGH on pituitary somatotrophes cannot be excluded.

journal_name

Eur J Endocrinol

authors

Fanciulli G,Oliva O,Tomasi PA,Pala A,Bertoncelli A,Dettori A,Delitala G

doi

10.1530/eje.0.1340073

subject

Has Abstract

pub_date

1996-01-01 00:00:00

pages

73-6

issue

1

eissn

0804-4643

issn

1479-683X

journal_volume

134

pub_type

临床试验,杂志文章,随机对照试验
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    authors: Ross RJ,Jabbar A,Jones TH,Roberts B,Dunkley K,Hall J,Long A,Levine H,Cullen DR

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  • Effect of ovariectomy and steroid hormone replacement on the recovery of arterial blood pressure following haemorrhage in anaesthetized Brattleboro rats.

    abstract::There is increasing evidence that ovarian steroids inhibit vascular responsiveness to the neurohypophysial hormone vasopressin. The present study examined the recovery of the arterial blood pressure following a single (2 ml/100 g body weight) haemorrhage in ovariectomized (OVX) Brattleboro rats with hereditary hypotha...

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    doi:10.1530/eje.0.1360330

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  • Withdrawn: Case detection, diagnosis, and treatment of patients with primary aldosteronism: an Endocrine Society clinical practice guideline.

    abstract::Ahead of Print article withdrawn by publisher. ...

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    pub_type: 杂志文章

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  • Altered urinary excretion of aquaporin 2 in IgA nephropathy.

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    authors: Gallo M,Aragno M,Gatto V,Tamagno E,Brignardello E,Manti R,Danni O,Boccuzzi G

    更新日期:1999-07-01 00:00:00

  • Prevalence of cardiovascular disease and cancer during cross-sex hormone therapy in a large cohort of trans persons: a case-control study.

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    journal_title:European journal of endocrinology

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    doi:10.1530/EJE-10-0043

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    更新日期:2010-07-01 00:00:00

  • Anthropometric, computed tomography and fat cell data in an obese population: relationship with insulin, leptin, tumor necrosis factor-alpha, sex hormone-binding globulin and sex hormones.

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    更新日期:2007-01-01 00:00:00

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    pub_type: 杂志文章

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    authors: Forestier E,Vinzio S,Sapin R,Schlienger JL,Goichot B

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  • MEN1 gene mutation analysis in Italian patients with multiple endocrine neoplasia type 1.

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    doi:10.1530/eje.0.1420131

    authors: Morelli A,Falchetti A,Martineti V,Becherini L,Mark M,Friedman E,Brandi ML

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    更新日期:1998-02-01 00:00:00

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    journal_title:European journal of endocrinology

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    doi:10.1530/eje.0.1460591

    authors: Lisi S,Pinchera A,McCluskey RT,Chiovato L,Marinò M

    更新日期:2002-04-01 00:00:00

  • Changes in bone density and bone markers in rhythmic gymnasts and ballet dancers: implications for puberty and leptin levels.

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    journal_title:European journal of endocrinology

    pub_type: 杂志文章

    doi:10.1530/eje.0.1510491

    authors: Muñoz MT,de la Piedra C,Barrios V,Garrido G,Argente J

    更新日期:2004-10-01 00:00:00

  • Bone mineral density in middle-aged women with Turner's syndrome.

    abstract::Bone mineral density (BMD), bone mineral content and body composition were determined in 47 middle-aged (mean age 47.9 +/- 1.1 years) women with Turner's syndrome. Bone mineral density was measured in the forearm, femoral neck and total body. The women investigated had a BMD lower than the normal mean. When expressed ...

    journal_title:European journal of endocrinology

    pub_type: 杂志文章

    doi:10.1530/eje.0.1320047

    authors: Sylvén L,Hagenfeldt K,Ringertz H

    更新日期:1995-01-01 00:00:00

  • Discriminating between virilizing ovary tumors and ovary hyperthecosis in postmenopausal women: clinical data, hormonal profiles and image studies.

    abstract:BACKGROUND:The presence of virilizing signs associated with high serum androgen levels in postmenopausal women is rare. Virilizing ovarian tumors (VOTs) and ovarian stromal hyperthecosis (OH) are the most common etiologies in virilized postmenopausal women. The differential diagnosis between these two conditions is oft...

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    pub_type: 杂志文章

    doi:10.1530/EJE-17-0111

    authors: Yance VRV,Marcondes JAM,Rocha MP,Barcellos CRG,Dantas WS,Avila AFA,Baroni RH,Carvalho FM,Hayashida SAY,Mendonca BB,Domenice S

    更新日期:2017-07-01 00:00:00

  • Genetic variation in thyroid hormone pathway genes; polymorphisms in the TSH receptor and the iodothyronine deiodinases.

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    pub_type: 杂志文章,评审

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    pub_type: 杂志文章

    doi:10.1530/eje.0.1410160

    authors: Deloof S,De Seze C,Montel V,Chatelain A

    更新日期:1999-08-01 00:00:00

  • Glucocorticoid receptor gene haplotypes are not associated with birth anthropometry, blood pressure, glucose and insulin concentrations, and body composition in subjects born small for gestational age.

    abstract:OBJECTIVE:Smaller size at birth has been associated with an increased risk of metabolic and cardiovascular disorders in adult life. Fetal programming of the hypothalamic-pituitary-adrenal axis has been suggested as a possible explanation. Fetal glucocorticoid (GC) overexposure has effects that suggest a role of GCs in ...

    journal_title:European journal of endocrinology

    pub_type: 杂志文章

    doi:10.1530/EJE-10-0718

    authors: Manenschijn L,van den Akker EL,Ester WA,Leunissen RW,Willemsen RH,van Rossum EF,Koper JW,Lamberts SW,Hokken-Koelega AC

    更新日期:2010-12-01 00:00:00

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    pub_type: 杂志文章,随机对照试验

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    更新日期:2011-11-01 00:00:00

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    pub_type: 临床试验,杂志文章

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    更新日期:1995-04-01 00:00:00

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    journal_title:European journal of endocrinology

    pub_type: 杂志文章

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    authors: Hadji P,Hars O,Sturm G,Bauer T,Emons G,Schulz KD

    更新日期:2000-05-01 00:00:00

  • Expression of sex hormone-binding globulin mRNA in human ovarian cancers.

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    pub_type: 杂志文章

    doi:10.1530/eje.0.1330327

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    更新日期:1995-09-01 00:00:00

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    pub_type: 杂志文章,多中心研究

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    pub_type: 杂志文章

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