Evidence map›Paper›PMID 11950805›Full record

ArticleGut2002

Recovery of ischaemic injured porcine ileum: evidence for a contributory role of COX-1 and COX-2.

A T Blikslager, D N Zimmel, K M Young, N B Campbell, D Little, R A Argenzio

Open access · bronzeAbstract read
In one paragraph

Article in Gut, 2002. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 10 papers.

0numbers the graph read from it
0cells of the map it votes in
10citing papers in PubMed
2.4field-weighted citation impact, top 12% 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

10 citing papers in PubMed, 36 citations in OpenAlex.

  1. Article
  2. NSAID-Gut Microbiota Interactions.Frontiers in pharmacology · 2020
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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

6 authors at 1 institution in 1 country.

A T BlikslagerDepartment of Clinical Sciences, College of Veterinary Medicine, North Carolina State University, Raleigh, North Carolina 27606, USA. Anthony_Blikslager@ncsu.edu
D N Zimmel
K M Young
N B Campbell
D Little
R A Argenzio
North Carolina State University · US

Funding

PILOT AND FEASIBILITY STUDIESP30DK034987 · NIDDK · UNIV OF NORTH CAROLINA CHAPEL HILL · PI Temitope O. Keku · 1985 to 2026
$30.5M
MECHANISMS OF PROSTAGLANDIN INDUCED INTESTINAL REPAIRR29DK053284 · NIDDK · NORTH CAROLINA STATE UNIVERSITY RALEIGH · PI BLIKSLAGER, ANTHONY THOMAS · 1998 to 2002
$319k
NIDDK NIH HHS DK34987NIDDK NIH HHS DK53284NIDDK NIH HHS P30 DK034987NIDDK NIH HHS R29 DK053284
6 · The paper itself

Abstract

backgroundWe have previously shown that the non-selective cyclooxygenase (COX) inhibitor indomethacin retards recovery of intestinal barrier function in ischaemic injured porcine ileum. However, the relative role of COX-1 and COX-2 elaborated prostaglandins in this process is unclear.

aimsTo assess the role of COX-1 and COX-2 elaborated prostaglandins in the recovery of intestinal barrier function by evaluating the effects of selective COX-1 and COX-2 inhibitors on mucosal recovery and eicosanoid production.

methodsPorcine ileal mucosa subjected to 45 minutes of ischaemia was mounted in Ussing chambers, and transepithelial electrical resistance was used as an indicator of mucosal recovery. Prostaglandins E1 and E2 (PGE) and 6-keto-PGF1alpha (the stable metabolite of prostaglandin I2 (PGI2)) were measured using ELISA. Thromboxane B2 (TXB2, the stable metabolite of TXA2) was measured as a likely indicator of COX-1 activity.

resultsIschaemic injured tissues recovered to control levels of resistance within three hours whereas tissues treated with indomethacin (5x10(-6) M) failed to fully recover, associated with inhibition of eicosanoid production. Injured tissues treated with the selective COX-1 inhibitor SC-560 (5x10(-6) M) or the COX-2 inhibitor NS-398 (5x10(-6) M) recovered to control levels of resistance within three hours, associated with significant elevations of PGE and 6-keto-PGF1alpha compared with untreated tissues. However, SC-560 significantly inhibited TXB2 production whereas NS-398 had no effect on this eicosanoid, indicating differential actions of these inhibitors related to their COX selectivity.

conclusionsThe results suggest that recovery of resistance is triggered by PGE and PGI2, which may be elaborated by either COX-1 or COX-2.

Indexed as

AnimalsCyclooxygenase 1Cyclooxygenase 2Cyclooxygenase 2 InhibitorsCyclooxygenase InhibitorsDiffusion Chambers, CultureDose-Response Relationship, DrugEicosanoidsFemaleIleumIndomethacinIntestinal MucosaIschemiaIsoenzymesMaleNitrobenzenesCyclooxygenase 1Cyclooxygenase 2Cyclooxygenase 2 InhibitorsCyclooxygenase InhibitorsEicosanoidsIndomethacinIsoenzymesN-(2-cyclohexyloxy-4-nitrophenyl)methanesulfonamideNitrobenzenesProstaglandin-Endoperoxide SynthasesSulfonamides

Identifiers

PMID11950805
PMCPMC1773210
OpenAlexW2169935252

What OpenQuestion holds

Textmetadata
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.