Evidence map›Paper›PMID 26479384›Full record

ArticleAnimals : an open access journal from MDPI2015

Relationships between Circulating Urea Concentrations and Endometrial Function in Postpartum Dairy Cows.

Zhangrui Cheng, Chike F Oguejiofor, Theerawat Swangchan-Uthai, Susan Carr, D Claire Wathes

Open access · goldAbstract read
In one paragraph

Article in Animals : an open access journal from MDPI, 2015. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 14 papers.

0numbers the graph read from it
0cells of the map it votes in
14citing papers in PubMed
3.5field-weighted citation impact, top 9% 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

14 citing papers in PubMed, 39 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.

Zhangrui ChengDepartment of Production and Population Health, Royal Veterinary College, North Mymms, Hertfordshire AL9 7TA, UK. zcheng@rvc.ac.uk.
Chike F OguejioforDepartment of Production and Population Health, Royal Veterinary College, North Mymms, Hertfordshire AL9 7TA, UK. coguejiofor@rvc.ac.uk.
Theerawat Swangchan-UthaiDepartment of Production and Population Health, Royal Veterinary College, North Mymms, Hertfordshire AL9 7TA, UK. theerawat.s@chula.ac.th.
Susan CarrDepartment of Production and Population Health, Royal Veterinary College, North Mymms, Hertfordshire AL9 7TA, UK. scarr@rvc.ac.uk.
D Claire WathesDepartment of Production and Population Health, Royal Veterinary College, North Mymms, Hertfordshire AL9 7TA, UK. dcwathes@rvc.ac.uk.
Royal Veterinary College · GB

Funding

Medical Research Council G0900740Medical Research Council MR/K001744/1Wellcome Trust
6 · The paper itself

Abstract

Both high and low circulating urea concentrations, a product of protein metabolism, are associated with decreased fertility in dairy cows through poorly defined mechanisms. The rate of involution and the endometrial ability to mount an adequate innate immune response after calving are both critical for subsequent fertility. Study 1 used microarray analysis to identify genes whose endometrial expression 2 weeks postpartum correlated significantly with the mean plasma urea per cow, ranging from 3.2 to 6.6 mmol/L. The biological functions of 781 mapped genes were analysed using Ingenuity Pathway Analysis. These were predominantly associated with tissue turnover (e.g., BRINP1, FOXG1), immune function (e.g., IL17RB, CRISPLD2), inflammation (e.g., C3, SERPINF1, SERPINF2) and lipid metabolism (e.g., SCAP, ACBD5, SLC10A). Study 2 investigated the relationship between urea concentration and expression of 6 candidate genes (S100A8, HSP5A, IGF1R, IL17RB, BRINP1, CRISPLD2) in bovine endometrial cell culture. These were treated with 0, 2.5, 5.0 or 7.5 mmol/L urea, equivalent to low, medium and high circulating values with or without challenge by bacterial lipopolysaccharide (LPS). LPS increased S100A8 expression as expected but urea treatment had no effect on expression of any tested gene. Examination of the genes/pathways involved suggests that plasma urea levels may reflect variations in lipid metabolism. Our results suggest that it is the effects of lipid metabolism rather than the urea concentration which probably alter the rate of involution and innate immune response, in turn influencing subsequent fertility.

Indexed as

cholesterolendometriuminnate immunityinvolutionprotein metabolism

Identifiers

PMID26479384
PMCPMC4598704
OpenAlexW2135695770

What OpenQuestion holds

Textmetadata
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.