Evidence map›Paper›PMID 27127786›Full record

ArticleBioMed research international2016

Estrogen Modulates Expression of Tight Junction Proteins in Rat Vagina.

Kyung-Jin Oh, Hyun-Suk Lee, Kyuyoun Ahn, Kwangsung Park

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Article in BioMed research international, 2016. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 7 papers.

0numbers the graph read from it
0cells of the map it votes in
7citing papers in PubMed
1.1field-weighted citation impact, top 21% 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

7 citing papers in PubMed, 14 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

4 authors at 1 institution in 1 country.

Kyung-Jin OhDepartment of Urology, Chonnam National University Medical School, Sexual Medicine Research Center, Chonnam National University, Gwangju 61469, Republic of Korea.
Hyun-Suk LeeDepartment of Urology, Chonnam National University Medical School, Sexual Medicine Research Center, Chonnam National University, Gwangju 61469, Republic of Korea.ORCID 0000-0002-3374-9435
Kyuyoun AhnDepartment of Anatomy, Chonnam National University Medical School, Sexual Medicine Research Center, Chonnam National University, Gwangju 61469, Republic of Korea.
Kwangsung ParkDepartment of Urology, Chonnam National University Medical School, Sexual Medicine Research Center, Chonnam National University, Gwangju 61469, Republic of Korea.ORCID 0000-0001-8827-162X
Chonnam National University · KR

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

Background. The objectives of this study were to investigate the localization of tight junctions and the modulation of zonula occludens- (ZO-) 1, occludin and claudin-1 expression by estrogen in castrated female rat vagina. Female Sprague-Dawley rats (230-240 g, n = 45) were divided into three groups and subjected to a sham operation (control group, n = 15), bilateral ovariectomy (Ovx group, n = 15), or bilateral ovariectomy followed by daily subcutaneous injection of 17β-estradiol (50 μg/kg/day, Ovx + Est group, n = 15). The cellular localization and expression of ZO-1, occludin, and claudin-1 were determined in each group by immunohistochemistry and western blot. Results. Expression of ZO-1 was diffuse in all groups, with the highest intensity in the superficial epithelium in the control group. Occludin was localized in the intermediate and basal epithelium. Claudin-1 was most intense in the superficial layer of the vaginal epithelium in the control group. Expression of ZO-1, occludin, and claudin-1 was significantly decreased after ovariectomy and was restored to the level of the control after estrogen replacement. Conclusions. Tight junctions are distinctly localized in rat vagina, and estrogen modulates the expression of tight junctions. Further researches are needed to clarify the functional role of tight junctions in vaginal lubrication.

Indexed as

AnimalsBody FluidsClaudin-1EstradiolFemaleImmunohistochemistryOccludinOvariectomyRatsRats, Sprague-DawleyTight Junction ProteinsUp-RegulationVaginaZonula Occludens-1 ProteinClaudin-1Cldn1 protein, ratEstradiolOccludinOcln protein, ratTight Junction ProteinsTjp1 protein, ratZonula Occludens-1 Protein

Identifiers

PMID27127786
PMCPMC4835618
OpenAlexW2314630248

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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.