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The effect of a low dose of alcohol on allopregnanolone serum concentrations across the menstrual cycle in women with severe premenstrual syndrome and controls.

Abstract：

BACKGROUND:Neurosteroids have been proposed to play an important role in the interaction between alcohol and GABA(A) receptors and for the symptomatology of premenstrual dysphoric disorder (PMDD). The primary aim of this study was to investigate possible alcohol-induced changes in allopregnanolone serum concentrations across different menstrual cycle phases in women with severe premenstrual syndrome (PMS) and controls. METHODS:The allopregnanolone and cortisol responses to a low-dose of alcohol were evaluated in 14 women with and 12 women without severe premenstrual syndrome in the follicular and late luteal phases. The effect of a 30-min intravenous alcohol infusion (0.2 g/kg) on allopregnanolone and cortisol serum concentrations was compared to placebo, and compared between cycle phases and groups. Blood samples for measuring allopregnanolone were taken at baseline 25, 55, and 75 min after the start of the alcohol infusion. RESULTS:In the late luteal phase, the alcohol infusion decreased allopregnanolone levels, compared to baseline levels as well as to placebo. The difference in allopregnanolone levels between alcohol and placebo was evident 25 min (P < 0.01), 55 min (P < 0.01), and 75 min (P < 0.05) after start of the infusion. There was no change in allopregnanolone levels during the alcohol infusion in the follicular phase. Also, no difference in alcohol-induced allopregnanolone response between PMS patients and control subjects was detected. Cortisol levels declined during both the placebo and alcohol infusion, but did not differ with respect to which infusion had been given. CONCLUSION:During the late luteal phase, independent of PMS diagnosis, the low-dose alcohol infusion resulted in decreasing peripheral allopregnanolone levels.

journal_name

Psychoneuroendocrinology

journal_title

Psychoneuroendocrinology

authors

Nyberg S,Andersson A,Zingmark E,Wahlström G,Bäckström T,Sundström-Poromaa I

doi

10.1016/j.psyneuen.2005.04.016

keywords:

subject

Has Abstract

pub_date

2005-10-01 00:00:00

pages

892-901

issue

eissn

0306-4530

issn

1873-3360

pii

S0306-4530(05)00117-4

journal_volume

pub_type

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The effect of a low dose of alcohol on allopregnanolone serum concentrations across the menstrual cycle in women with severe premenstrual syndrome and controls.