Evidence map›Paper›PMID 12631664›Full record

ArticleGut2003

COX-2 dependent inflammation increases spinal Fos expression during rodent postoperative ileus.

C Kreiss, L A Birder, S Kiss, M M VanBibber, A J Bauer

Open access · bronzeAbstract read
In one paragraph

Article in Gut, 2003. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 24 papers.

0numbers the graph read from it
0cells of the map it votes in
24citing papers in PubMed
7.9field-weighted citation impact, top 2% 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

24 citing papers in PubMed, 88 citations in OpenAlex.

  1. Differential responses to prostaglandins in the circular and longitudinal muscle layers of the murine ileum.American journal of physiology. Gastrointestinal and liver physiology · 2025
    Article
  2. Article
  3. The role of beta-adrenoreceptors in postoperative ileus in rats.Naunyn-Schmiedeberg's archives of pharmacology · 2024
    Article
  4. Review
  5. Improved motility in the gastrointestinal tract of a postoperative ileus rat model with ilaprazole.The Korean journal of physiology & pharmacology : official journal of the Korean Physiological Society and the Korean Society of Pharmacology · 2021
    Article
  6. Article
  7. Review
  8. Review
  9. Article
  10. Article
  11. Article
  12. Article
  13. New therapeutic strategies for postoperative ileus.Nature reviews. Gastroenterology & hepatology · 2012
    Review
  14. Article
  15. Article
  16. Article
  17. Article
  18. Article
  19. Article
  20. Controlling postoperative ileus by vagal activation.World journal of gastroenterology · 2010
    Review
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.

C KreissDivision of Gastroenterology, Hepatology, and Nutrition, University of Pittsburgh Medical Center, Pittsburgh, Pennsylvania 15261, USA.
L A Birder
S Kiss
M M VanBibber
A J Bauer
University of Pittsburgh Medical Center · US

Funding

Regulation of Intestinal Mucosal Injury & Repair After Trauma/Hemorrhagic ShockP50GM053789 · NIGMS · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI VODOVOTZ, YORAM · 1997 to 2013
$18.0M
Triggering Mechanisms of Post-Operative IleusR01GM058241 · NIGMS · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI BAUER, ANTHONY J · 1998 to 2008
$1.8M
NITRIC OXIDE IN BLADDER NEURAL EPITHELIAL SIGNALINGR01DK054824 · NIDDK · UNIVERSITY OF PITTSBURGH AT PITTSBURGH · PI BIRDER, LORI A · 1999 to 2005
$1.5M
NIDDK NIH HHS R01 DK054824NIDDK NIH HHS R01-DK54824NIGMS NIH HHS P50-GM-53789NIGMS NIH HHS R01 GM058241NIGMS NIH HHS R01-GM58241
6 · The paper itself

Abstract

BACKGROUND AND

aimsCyclooxygenase 2 (COX-2) and prostaglandins (PGs) participate in the pathogenesis of inflammatory postoperative ileus. We sought to determine whether the emerging neuronal modulator COX-2 plays a significant role in primary afferent activation during postoperative ileus using spinal Fos expression as a marker.

methodsRats, and COX-2(+/+) and COX-2(-/-) mice underwent simple intestinal manipulation. The effect of intestinal manipulation on Fos immunoreactivity (IR) in the L(5)-S(1) spinal cord, in situ circumference, and postoperative leucocytic infiltrate of the intestinal muscularis was measured. Postoperative PGE(2) production was measured in peritoneal lavage fluid. The dependence of these parameters on COX-2 was studied in pharmacological (DFU, Merck- Frosst, selective COX-2 inhibitor) and genetic (COX-2(-/-) mice) models.

resultsPostoperative Fos IR increased 3.7-fold in rats and 2.2-fold in mice. Both muscularis leucocytic infiltrate and the circumference of the muscularis increased significantly in rats and COX-2(+/+) mice postoperatively, indicating dilating ileus. Surgical manipulation markedly increased PGE(2) levels in the peritoneal cavity. DFU pretreatment and the genetic absence of COX-2(-/-) prevented dilating ileus, and leucocytic infiltrate was diminished by 40% with DFU and by 54% in COX-2(-/-) mice. DFU reversed postsurgical intra- abdominal PGE(2) levels to normal. Fos IR after intestinal manipulation was attenuated by approximately 50% in DFU treated rats and in COX-2(-/-) mice.

conclusionsPostoperatively, small bowel manipulation causes a significant and prolonged increase in spinal Fos expression, suggesting prolonged primary afferent activation. COX-2 plays a key role in this response. This activation of primary afferents may subsequently initiate inhibitory motor reflexes to the gut, contributing to postoperative ileus.

Indexed as

AnimalsAscitic FluidCyclooxygenase 2DinoprostoneEnzyme InhibitorsFuransIntestinal Pseudo-ObstructionIntestine, SmallIsoenzymesLeukocytesMaleMiceMice, Inbred C57BLPostoperative ComplicationsProstaglandin-Endoperoxide SynthasesProto-Oncogene Proteins c-fos5,5-dimethyl-3-(3-fluorophenyl)-4-(4-methylsulfonyl)phenyl-2(5H)-furanoneCyclooxygenase 2DinoprostoneEnzyme InhibitorsFuransIsoenzymesProstaglandin-Endoperoxide SynthasesProto-Oncogene Proteins c-fos

Identifiers

PMID12631664
PMCPMC1773580
OpenAlexW2098274895

What OpenQuestion holds

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Read underepoch 390

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.