Evidence map›Paper›PMID 26601075›Full record

ArticleEuropean thyroid journal2015

Sex-Dependent Claudin-1 Expression in the Liver of Euthyroid and Hypothyroid Mice.

Denise Zwanziger, Helena Rakov, Kathrin Engels, Lars C Moeller, Dagmar Führer

Open access · bronzeAbstract read
In one paragraph

Article in European thyroid journal, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 9 papers.

0numbers the graph read from it
0cells of the map it votes in
9citing papers in PubMed
0.7field-weighted citation impact, top 26% 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

9 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

5 authors at 1 institution in 1 country.

Denise ZwanzigerDepartment of Endocrinology and Metabolism and Division of Laboratory Research, University Hospital Essen, Essen, Germany.
Helena RakovDepartment of Endocrinology and Metabolism and Division of Laboratory Research, University Hospital Essen, Essen, Germany.
Kathrin EngelsDepartment of Endocrinology and Metabolism and Division of Laboratory Research, University Hospital Essen, Essen, Germany.
Lars C MoellerDepartment of Endocrinology and Metabolism and Division of Laboratory Research, University Hospital Essen, Essen, Germany.
Dagmar FührerDepartment of Endocrinology and Metabolism and Division of Laboratory Research, University Hospital Essen, Essen, Germany.
Essen University Hospital · DE

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

backgroundIn the liver the tight junction protein claudin-1 plays an important role in bile secretion by maintaining the paracellular barrier of bile canaliculi and the bile duct. A diminished bile excretion has been found in hypothyroid patients, and the prevalence of gallstones is increased in hypothyroidism. This association, however, only applies for men and is in contrast to the well-established female preponderance of biliary disease in the general population.

objectivesWe hypothesized that hypothyroidism could lead to altered claudin-1 expression in the liver, and that this effect may be sex specific.

methodsWe characterized claudin-1 expression and localization in livers of euthyroid and hypothyroid male and female C57BL/6NTac mice by real-time PCR, Western blot and immunofluorescence.

resultsClaudin-1 is expressed in canalicular regions and the bile ducts of the murine liver. Livers of female mice showed lower claudin-1 expression than male livers. In hypothyroid livers, female animals showed an elevated claudin-1 expression, whereas reduced claudin-1 expression was found in male animals compared to the euthyroid controls.

conclusionWe demonstrate a correlation between claudin-1 expression and hypothyroidism in the murine liver. Furthermore, a sex-dependent alteration of claudin-1 expression was found.

Indexed as

Biliary diseaseClaudin-1HypothyroidLiverSex-dependent expression

Identifiers

PMID26601075
PMCPMC4640300
OpenAlexW1434728395

What OpenQuestion holds

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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.