Effect of naloxone on neurohypophyseal peptide responses to breast feeding and breast stimulation in man.

Abstract:

:We have investigated the role of endogenous opioid peptides in the release of oxytocin (OT) in response to breast feeding and breast stimulation in humans. Five breast feeding women were studied on two separate occasions within 4 weeks of delivery. Saline or naloxone, 4 mg bolus and 6 mg/h, was administered intravenously, in random order. Blood samples were taken at regular intervals. In the saline-infused group OT rose from a baseline of 1.1 +/- 0.1 pmol/l (mean +/- SEM) to a peak of 7.0 +/- 0.9 after 6 min, and in the naloxone-infused group from 1.0 +/- 0.1 pmol/l to 5.8 +/- 1.3 (P less than 0.05). There were no significant differences between the two groups at any time point. Plasma vasopressin (AVP) did not change. In the second study six women in the luteal phase of the menstrual cycle were investigated on two occasions at least 48 h apart. They were similarly infused with either naloxone or saline in random sequence. A mechanical breast pump provided breast stimulation. In saline-infused women OT levels rose from a baseline of 1.0 +/- 0.1 pmol/l (mean +/- SEM) to a peak of 3.0 +/- 1.1 (P less than 0.05) after 6 min, and in naloxone infused women from 1.1 +/- 0.1 pmol/l to 3.0 +/- 1.4 (NS). There were no differences in OT between the groups. AVP did not change. We conclude that endogenous opioid peptides do not modulate OT release during breast feeding or breast stimulation in women.

journal_name

Clin Endocrinol (Oxf)

journal_title

Clinical endocrinology

authors

Johnson MR,Andrews MA,Seckl JR,Lightman SL

doi

10.1111/j.1365-2265.1990.tb00468.x

subject

Has Abstract

pub_date

1990-07-01 00:00:00

pages

81-6

issue

1

eissn

0300-0664

issn

1365-2265

journal_volume

33

pub_type

临床试验,杂志文章,随机对照试验
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    journal_title:Clinical endocrinology

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    更新日期:2012-05-01 00:00:00

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    更新日期:2011-09-01 00:00:00

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    journal_title:Clinical endocrinology

    pub_type: 杂志文章,随机对照试验

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    更新日期:2012-08-01 00:00:00

  • Serum immunoreactive melatonin in boys with delayed puberty.

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    更新日期:1982-11-01 00:00:00

  • Effects of low-dose oral hydrocortisone replacement versus short-term reproduction of physiological serum cortisol concentrations on insulin action in adult-onset hypopituitarism.

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    journal_title:Clinical endocrinology

    pub_type: 临床试验,杂志文章,随机对照试验

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    更新日期:2002-02-01 00:00:00

  • Women with high early pregnancy urinary iodine levels have an increased risk of hyperthyroid newborns: the population-based Generation R Study.

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    pub_type: 杂志文章

    doi:10.1111/cen.12321

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    更新日期:2014-04-01 00:00:00

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    pub_type: 杂志文章

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    更新日期:1997-12-01 00:00:00

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    pub_type: 杂志文章

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    更新日期:2004-09-01 00:00:00

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    更新日期:2019-11-01 00:00:00

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    pub_type: 杂志文章

    doi:10.1046/j.1365-2265.1999.00759.x

    authors: van den Bogaert DP,de Herder WW,de Jong FH,Biemond P,van der Lely AJ,Lamberts SW

    更新日期:1999-08-01 00:00:00

  • An audit of oestradiol levels and implant frequency in women undergoing subcutaneous implant therapy.

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    pub_type: 杂志文章

    doi:10.1111/j.1365-2265.1995.tb02660.x

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    更新日期:1995-05-01 00:00:00

  • Hypothalamic-pituitary-gonadal relationships in man from birth to puberty.

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    journal_title:Clinical endocrinology

    pub_type: 杂志文章,评审

    doi:10.1111/j.1365-2265.1976.tb01985.x

    authors: Forest MG,De Peretti E,Bertrand J

    更新日期:1976-09-01 00:00:00

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    pub_type: 杂志文章

    doi:10.1111/j.1365-2265.2005.02296.x

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    更新日期:2005-07-01 00:00:00

  • The complex of myxomas, spotty pigmentation and endocrine overactivity.

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    pub_type: 杂志文章

    doi:10.1111/j.1365-2265.1986.tb03605.x

    authors: Leedman PJ,Cohen AK,Matz LR

    更新日期:1986-11-01 00:00:00

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    pub_type: 杂志文章

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    更新日期:2011-06-01 00:00:00

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    pub_type: 杂志文章

    doi:10.1046/j.1365-2265.1999.00659.x

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    更新日期:1999-06-01 00:00:00

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    journal_title:Clinical endocrinology

    pub_type: 临床试验,杂志文章,随机对照试验

    doi:10.1111/j.1365-2265.1994.tb02554.x

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    更新日期:1994-09-01 00:00:00

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    journal_title:Clinical endocrinology

    pub_type: 临床试验,杂志文章,随机对照试验

    doi:10.1111/j.1365-2265.1988.tb01225.x

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    更新日期:1988-09-01 00:00:00

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    更新日期:2010-10-01 00:00:00

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    更新日期:2009-01-01 00:00:00

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    更新日期:2016-07-01 00:00:00

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    更新日期:2009-03-01 00:00:00

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    pub_type: 杂志文章

    doi:10.1046/j.1365-2265.2000.00868.x

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    更新日期:2000-01-01 00:00:00