Evidence map›Paper›PMID 26960697›Full record

ArticlePsychopharmacology2016

Women with premenstrual dysphoric disorder have altered sensitivity to allopregnanolone over the menstrual cycle compared to controls-a pilot study.

Erika Timby, Torbjörn Bäckström, Sigrid Nyberg, Hans Stenlund, Anna-Carin N Wihlbäck, Marie Bixo

Abstract readComparative Study
PubMed Publisher
In one paragraph

Article in Psychopharmacology, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 44 papers.

0numbers the graph read from it
0cells of the map it votes in
44citing papers in PubMed
6.1field-weighted citation impact, top 4% of its field
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

Trials whose registry record cites this paper, or whose number appears in the abstract. A trial that started after this paper was published is citing it as background, not reporting it.

Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

44 citing papers in PubMed, 84 citations in OpenAlex.

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  7. Transcription of GABATranslational psychiatry · 2025
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  9. Biomarkers of reproductive psychiatric disorders.The British journal of psychiatry : the journal of mental science · 2025
    Review
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  12. Modulators of GABANeuropsychopharmacology : official publication of the American College of Neuropsychopharmacology · 2024
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4 · The record

Corrections and comments

PubMed lists nothing against this paper. Absence here is not a guarantee, only a check that was made.

5 · Who and what money

Authors and funding

6 authors at 1 institution in 1 country.

Erika TimbyDepartment of Clinical Science, Umeå University, 901 85, Umeå, Sweden.
Torbjörn BäckströmDepartment of Clinical Science, Umeå University, 901 85, Umeå, Sweden.
Sigrid NybergDepartment of Clinical Science, Umeå University, 901 85, Umeå, Sweden.
Hans StenlundDepartment of Public Health and Clinical Medicine, Umeå University, 901 85, Umeå, Sweden.
Anna-Carin N WihlbäckDepartment of Clinical Science, Umeå University, 901 85, Umeå, Sweden.
Marie BixoDepartment of Clinical Science, Umeå University, 901 85, Umeå, Sweden. marie.bixo@umu.se.
Umeå University · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

rationaleIn premenstrual dysphoric disorder (PMDD), a condition that afflicts 3-8 % of women in fertile ages, the cyclic recurrence of debilitating mood symptoms is restricted to the luteal phase of the menstrual cycle. The progesterone metabolite allopregnanolone is produced by the corpus luteum, and circulating levels are reflected in the brain. Allopregnanolone is a modulator of the GABAA receptor, enhancing the effect of γ-aminobutyric acid (GABA). Previous studies have demonstrated different sensitivity to other GABAA receptor agonists, i.e., benzodiazepines, alcohol, and pregnanolone, in PMDD patients compared to controls.

objectivesThis study aimed to investigate the sensitivity to intravenous allopregnanolone over the menstrual cycle in PMDD patients.

methodsAllopregnanolone, 0.05 mg/kg, was administered intravenously once in the mid-follicular and once in the luteal phase of the menstrual cycle to 10 PMDD patients and 10 control subjects. The saccadic eye velocity (SEV) was recorded by electrooculography as a measurement of functional GABAA receptor activity, at baseline and repeatedly after the injection. A mixed model was used to analyze data.

resultsThere was a highly significant group × phase interaction in the SEV response to allopregnanolone (F(1,327.489) = 12.747, p < 0.001). In the PMDD group, the SEV response was decreased in the follicular phase compared to the luteal phase (F(1,168) = 7.776, p = 0.006), whereas in the control group, the difference was opposite during the menstrual cycle (F(1,158.45) = 5.70, p = 0.018).

conclusionsThe effect of exogenous allopregnanolone is associated with menstrual cycle phase in PMDD patients and in controls. The results suggest an altered sensitivity to allopregnanolone in PMDD patients.

Indexed as

AdolescentAdultAnxietyElectrooculographyFemaleGABA ModulatorsGonadal Steroid HormonesHumansHypnotics and SedativesMenstrual CyclePanicPilot ProjectsPregnanolonePremenstrual Dysphoric DisorderReceptors, GABA-ASaccadesGABA ModulatorsGonadal Steroid HormonesHypnotics and SedativesPregnanoloneReceptors, GABA-AGABAMenstrual cycleNeurosteroidPremenstrual dysphoric disorderSaccadic eye velocity

Identifiers

PMID26960697
OpenAlexW199080563

What OpenQuestion holds

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Registered trials

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.