Evidence map›Paper›PMID 19807848›Full record

ArticleJournal of neuroendocrinology2009

Gene expression profiles of intracellular and membrane progesterone receptor isoforms in the mediobasal hypothalamus during pro-oestrus.

B Liu, L A Arbogast

Open access · greenAbstract read
In one paragraph

Article in Journal of neuroendocrinology, 2009. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 16 papers.

0numbers the graph read from it
0cells of the map it votes in
16citing papers in PubMed
4.7field-weighted citation impact, top 6% 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

16 citing papers in PubMed, 38 citations in OpenAlex.

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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

2 authors at 2 institutions in 1 country.

B LiuDepartment of Physiology, Southern Illinois University School of Medicine, Carbondale, IL 62901-6523, USA.
L A Arbogast
Southern Illinois University Carbondale · USSouthern Illinois University School of Medicine · US

Funding

Prolactin Feedback to Hypothalamic Dopaminergic NeuronsR01HD045805 · NICHD · SOUTHERN ILLINOIS UNIVERSITY CARBONDALE · PI ARBOGAST, LYDIA A · 2005 to 2009
$1.7M
Opioid-Dopamine Interactions During LactationR01HD048925 · NICHD · SOUTHERN ILLINOIS UNIVERSITY CARBONDALE · PI ARBOGAST, LYDIA A · 2005 to 2009
$1.3M
NICHD NIH HHS HD045805NICHD NIH HHS HD048925NICHD NIH HHS R01 HD045805NICHD NIH HHS R01 HD048925
6 · The paper itself

Abstract

Progesterone action is mediated by its binding to specific receptors. Two progesterone receptor (PR) isoforms (PRA and PRB), three membrane progesterone receptor (mPR) subtypes (mPRalpha, mPRbeta and mPRgamma) and at least one progesterone membrane-binding protein [PR membrane component 1 (PRmc1)] have been identified in reproductive tissues and brain of various species. In the present study, we examined gene expression patterns for PR isoforms, mPR subtypes and PRmc1 in the rat mediobasal hypothalamus (MBH) during pro-oestrus. The mRNA level for each receptor subtype was quantified by a real-time reverse transcriptase-polymerase chain reaction (RT-PCR) at the time points: 13.00 h on dioestrous day 2; 09.00, 13.00, 17.00 and 22.00 h on pro-oestrus; and 13.00 h on oestrus. For PR, one primer set amplified PRA+PRB, whereas a second primer set amplified PRB. As expected, PRA+PRB mRNA expression was greater than PRB in MBH tissue. PRB mRNA levels increased throughout the day on pro-oestrus, with the highest levels being observed at 17.00 h. PRB mRNA levels in the MBH were increased by 2.4- and 3.0-fold at 13.00 and 17.00 h, respectively, on pro-oestrus compared to 13.00 h on dioestrous day 2. There were differential mRNA expression levels for mPRs and PRmc1 in the MBH, with the highest expression for PRmc1 and the lowest for mPRgamma. The mPRalpha mRNA contents at 13.00 and 17.00 h on pro-oestrus were increased by 1.5-fold compared to that at 13.00 h on dioestrous day 2. The mPRbeta mRNA levels at 13.00 and 17.00 h on pro-oestrus were 2.5- and 2.4-fold higher compared to that at 13.00 h on dioestrous day 2, respectively. PRA+PRB, mPRgamma and PRmc1 mRNA levels did not vary on pro-oestrus. These findings suggest that the higher expression of PRB, mPRalpha and mPRbeta in the MBH on pro-oestrous afternoon may influence both genomic and nongenomic mechanisms of progesterone action during the critical pre-ovulatory period.

Indexed as

AnimalsCell MembraneCircadian RhythmDiestrusEstrusFemaleGene ExpressionHypothalamusIntracellular SpaceMembrane ProteinsPhotoperiodProestrusProtein IsoformsRatsRats, Sprague-DawleyReceptors, ProgesteroneMembrane ProteinsPgrmc1 protein, ratprogesterone receptor Aprogesterone receptor BProtein IsoformsReceptors, ProgesteroneRNA, Messenger

Identifiers

PMID19807848
PMCPMC2788049
OpenAlexW2040187907

What OpenQuestion holds

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LicenceCC BY
Read underepoch 390

Registered trials

None linked

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.