Evidence map›Paper›PMID 30210706›Full record

ArticleAmerican journal of translational research2018

Endometrial progesterone receptor isoforms in women with polycystic ovary syndrome.

Min Hu, Juan Li, Yuehui Zhang, Xin Li, Mats Brännström, Linus R Shao, Håkan Billig

Open access · greenAbstract read
In one paragraph

Article in American journal of translational research, 2018. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 23 papers, 1 of them a synthesis that pooled it.

0numbers the graph read from it
0cells of the map it votes in
23citing papers in PubMed, 1 pooled it
6.0field-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

23 citing papers in PubMed, 1 synthesis or guideline pooled it, 49 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

7 authors at 5 institutions in 2 countries.

Min HuDepartment of Physiology/Endocrinology, Institute of Neuroscience and Physiology, The Sahlgrenska Academy, University of Gothenburg Gothenburg 40530, Sweden.
Juan LiDepartment of Physiology/Endocrinology, Institute of Neuroscience and Physiology, The Sahlgrenska Academy, University of Gothenburg Gothenburg 40530, Sweden.
Yuehui ZhangDepartment of Physiology/Endocrinology, Institute of Neuroscience and Physiology, The Sahlgrenska Academy, University of Gothenburg Gothenburg 40530, Sweden.
Xin LiDepartment of Physiology/Endocrinology, Institute of Neuroscience and Physiology, The Sahlgrenska Academy, University of Gothenburg Gothenburg 40530, Sweden.
Mats BrännströmDepartment of Obstetrics and Gynecology, Sahlgrenska University Hospital, Sahlgrenska Academy, University of Gothenburg Gothenburg 41345, Sweden.
Linus R ShaoDepartment of Physiology/Endocrinology, Institute of Neuroscience and Physiology, The Sahlgrenska Academy, University of Gothenburg Gothenburg 40530, Sweden.
Håkan BilligDepartment of Physiology/Endocrinology, Institute of Neuroscience and Physiology, The Sahlgrenska Academy, University of Gothenburg Gothenburg 40530, Sweden.
First Affiliated Hospital of Guangzhou Medical University · CNUniversity of Gothenburg · SEHeilongjiang University of Chinese Medicine · CNObstetrics and Gynecology Hospital of Fudan University · CNSahlgrenska University Hospital · SE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

contextPolycystic ovary syndrome (PCOS) affects approximately 4%-18% of all reproductive-aged women and is often accompanied by endometrial progesterone (P4) resistance. Endometrial cells from PCOS patients display increased progesterone receptor (PGR) expression; however, in vivo knockout studies and in vitro experiments indicate the two PGR isoforms are not functionally equivalent.

objectiveWe aimed to compare endometrial PGR isoform expression between non-PCOS and PCOS patients during the proliferative phase.

designA case-control study. The expression of PGR isoforms (PGRA and PGRB), estrogen receptor alpha (ERα), and markers of cell proliferation was determined by qRT-PCR, Western blot, immunohistochemistry, and immunofluorescence assays. PATIENT(S): Patients were recruited and diagnosed with PCOS according to the Rotterdam criteria provided by the American Society for Reproductive Medicine and the European Society for Human Reproduction and Embryology. Endometrial biopsy samples were collected from non-PCOS patients with regular menstrual cycles or with hyperplasia (n = 11) and from PCOS patients with or without hyperplasia (n = 14). RESULT(S): Although the alteration of PGRB mRNA and protein expression was different, we found that PGRA mRNA and protein expression was higher in PCOS patients than non-PCOS patients. PGRA/B and PGRB were localized in both epithelial and stromal cells, with notable changes in the nuclei of epithelial and stromal cells. A similar expression pattern of ERα, vimentin and Ki-67, in association with an increased PGR expression, was observed in PCOS patients. CONCLUSION(S): These results demonstrated that elevated both PGR isoform expression depends on the presence of PCOS, and our data suggest that abnormal regulation of PGR isoforms is a pathological outcome of defective endometrium in PCOS patients.

Indexed as

endometriumestrogen receptorhyperandrogenisminfertilityPCOSProgesterone receptor isoforms

Identifiers

PMID30210706
PMCPMC6129510
OpenAlexW2994118536

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.